Sync with the latest Gnulib code (177f525)

Signed-off-by: Thomas Guyot-Sionnest <dermoth@aei.ca>

.gitignore

@@ -5,7 +5,6 @@ NP-VERSION-FILE
 # /
 /aclocal.m4
 /autom4te*.cache
-/build-*
 /Cache.pm
 /command.cfg
 /compile
@@ -25,12 +24,14 @@ NP-VERSION-FILE
 /THANKS
 
 # /build-aux/
+/build-aux/*~
 /build-aux/compile
 /build-aux/config.guess
 /build-aux/config.sub
 /build-aux/depcomp
 /build-aux/install-sh
 /build-aux/missing
+/build-aux/mkinstalldirs
 
 # /doc/
 /doc/developer-guidelines.html
@@ -46,28 +47,38 @@ NP-VERSION-FILE
 # /gl/
 /gl/.deps
 /gl/alloca.h
+/gl/arg-nonnull.h
 /gl/arpa
+/gl/arpa_inet.h
+/gl/c++defs.h
+/gl/charset.alias
 /gl/configmake.h
 /gl/errno.h
-/gl/float.h
 /gl/fcntl.h
+/gl/float.h
 /gl/getopt.h
+/gl/langinfo.h
 /gl/libgnu.a
+/gl/locale.h
 /gl/Makefile
 /gl/Makefile.in
 /gl/math.h
+/gl/netdb.h
 /gl/netinet_in.h
-/gl/ref-del.sed
 /gl/ref-add.sed
-/gl/charset.alias
-/gl/stdint.h
+/gl/ref-del.sed
 /gl/stdbool.h
-/gl/stdlib.h
+/gl/stddef.h
+/gl/stdint.h
 /gl/stdio.h
+/gl/stdlib.h
 /gl/string.h
 /gl/sys_socket.h
+/gl/sys_stat.h
+/gl/sys
 /gl/time.h
 /gl/unistd.h
+/gl/warn-on-use.h
 /gl/wchar.h
 /gl/wctype.h
 

build-aux/arg-nonnull.h

@@ -0,0 +1,26 @@
+/* A C macro for declaring that specific arguments must not be NULL.
+   Copyright (C) 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published
+   by the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* _GL_ARG_NONNULL((n,...,m)) tells the compiler and static analyzer tools
+   that the values passed as arguments n, ..., m must be non-NULL pointers.
+   n = 1 stands for the first argument, n = 2 for the second argument etc.  */
+#ifndef _GL_ARG_NONNULL
+# if (__GNUC__ == 3 && __GNUC_MINOR__ >= 3) || __GNUC__ > 3
+#  define _GL_ARG_NONNULL(params) __attribute__ ((__nonnull__ params))
+# else
+#  define _GL_ARG_NONNULL(params)
+# endif
+#endif

build-aux/c++defs.h

@@ -0,0 +1,251 @@
+/* C++ compatible function declaration macros.
+   Copyright (C) 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published
+   by the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#ifndef _GL_CXXDEFS_H
+#define _GL_CXXDEFS_H
+
+/* The three most frequent use cases of these macros are:
+
+   * For providing a substitute for a function that is missing on some
+     platforms, but is declared and works fine on the platforms on which
+     it exists:
+
+       #if @GNULIB_FOO@
+       # if !@HAVE_FOO@
+       _GL_FUNCDECL_SYS (foo, ...);
+       # endif
+       _GL_CXXALIAS_SYS (foo, ...);
+       _GL_CXXALIASWARN (foo);
+       #elif defined GNULIB_POSIXCHECK
+       ...
+       #endif
+
+   * For providing a replacement for a function that exists on all platforms,
+     but is broken/insufficient and needs to be replaced on some platforms:
+
+       #if @GNULIB_FOO@
+       # if @REPLACE_FOO@
+       #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+       #   undef foo
+       #   define foo rpl_foo
+       #  endif
+       _GL_FUNCDECL_RPL (foo, ...);
+       _GL_CXXALIAS_RPL (foo, ...);
+       # else
+       _GL_CXXALIAS_SYS (foo, ...);
+       # endif
+       _GL_CXXALIASWARN (foo);
+       #elif defined GNULIB_POSIXCHECK
+       ...
+       #endif
+
+   * For providing a replacement for a function that exists on some platforms
+     but is broken/insufficient and needs to be replaced on some of them and
+     is additionally either missing or undeclared on some other platforms:
+
+       #if @GNULIB_FOO@
+       # if @REPLACE_FOO@
+       #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+       #   undef foo
+       #   define foo rpl_foo
+       #  endif
+       _GL_FUNCDECL_RPL (foo, ...);
+       _GL_CXXALIAS_RPL (foo, ...);
+       # else
+       #  if !@HAVE_FOO@   or   if !@HAVE_DECL_FOO@
+       _GL_FUNCDECL_SYS (foo, ...);
+       #  endif
+       _GL_CXXALIAS_SYS (foo, ...);
+       # endif
+       _GL_CXXALIASWARN (foo);
+       #elif defined GNULIB_POSIXCHECK
+       ...
+       #endif
+*/
+
+/* _GL_EXTERN_C declaration;
+   performs the declaration with C linkage.  */
+#if defined __cplusplus
+# define _GL_EXTERN_C extern "C"
+#else
+# define _GL_EXTERN_C extern
+#endif
+
+/* _GL_FUNCDECL_RPL (func, rettype, parameters_and_attributes);
+   declares a replacement function, named rpl_func, with the given prototype,
+   consisting of return type, parameters, and attributes.
+   Example:
+     _GL_FUNCDECL_RPL (open, int, (const char *filename, int flags, ...)
+                                  _GL_ARG_NONNULL ((1)));
+ */
+#define _GL_FUNCDECL_RPL(func,rettype,parameters_and_attributes) \
+  _GL_FUNCDECL_RPL_1 (rpl_##func, rettype, parameters_and_attributes)
+#define _GL_FUNCDECL_RPL_1(rpl_func,rettype,parameters_and_attributes) \
+  _GL_EXTERN_C rettype rpl_func parameters_and_attributes
+
+/* _GL_FUNCDECL_SYS (func, rettype, parameters_and_attributes);
+   declares the system function, named func, with the given prototype,
+   consisting of return type, parameters, and attributes.
+   Example:
+     _GL_FUNCDECL_SYS (open, int, (const char *filename, int flags, ...)
+                                  _GL_ARG_NONNULL ((1)));
+ */
+#define _GL_FUNCDECL_SYS(func,rettype,parameters_and_attributes) \
+  _GL_EXTERN_C rettype func parameters_and_attributes
+
+/* _GL_CXXALIAS_RPL (func, rettype, parameters);
+   declares a C++ alias called GNULIB_NAMESPACE::func
+   that redirects to rpl_func, if GNULIB_NAMESPACE is defined.
+   Example:
+     _GL_CXXALIAS_RPL (open, int, (const char *filename, int flags, ...));
+ */
+#define _GL_CXXALIAS_RPL(func,rettype,parameters) \
+  _GL_CXXALIAS_RPL_1 (func, rpl_##func, rettype, parameters)
+#if defined __cplusplus && defined GNULIB_NAMESPACE
+# define _GL_CXXALIAS_RPL_1(func,rpl_func,rettype,parameters) \
+    namespace GNULIB_NAMESPACE                                \
+    {                                                         \
+      rettype (*const func) parameters = ::rpl_func;          \
+    }                                                         \
+    _GL_EXTERN_C int _gl_cxxalias_dummy
+#else
+# define _GL_CXXALIAS_RPL_1(func,rpl_func,rettype,parameters) \
+    _GL_EXTERN_C int _gl_cxxalias_dummy
+#endif
+
+/* _GL_CXXALIAS_RPL_CAST_1 (func, rpl_func, rettype, parameters);
+   is like  _GL_CXXALIAS_RPL_1 (func, rpl_func, rettype, parameters);
+   except that the C function rpl_func may have a slightly different
+   declaration.  A cast is used to silence the "invalid conversion" error
+   that would otherwise occur.  */
+#if defined __cplusplus && defined GNULIB_NAMESPACE
+# define _GL_CXXALIAS_RPL_CAST_1(func,rpl_func,rettype,parameters) \
+    namespace GNULIB_NAMESPACE                                     \
+    {                                                              \
+      rettype (*const func) parameters =                           \
+        reinterpret_cast<rettype(*)parameters>(::rpl_func);        \
+    }                                                              \
+    _GL_EXTERN_C int _gl_cxxalias_dummy
+#else
+# define _GL_CXXALIAS_RPL_CAST_1(func,rpl_func,rettype,parameters) \
+    _GL_EXTERN_C int _gl_cxxalias_dummy
+#endif
+
+/* _GL_CXXALIAS_SYS (func, rettype, parameters);
+   declares a C++ alias called GNULIB_NAMESPACE::func
+   that redirects to the system provided function func, if GNULIB_NAMESPACE
+   is defined.
+   Example:
+     _GL_CXXALIAS_SYS (open, int, (const char *filename, int flags, ...));
+ */
+#if defined __cplusplus && defined GNULIB_NAMESPACE
+  /* If we were to write
+       rettype (*const func) parameters = ::func;
+     like above in _GL_CXXALIAS_RPL_1, the compiler could optimize calls
+     better (remove an indirection through a 'static' pointer variable),
+     but then the _GL_CXXALIASWARN macro below would cause a warning not only
+     for uses of ::func but also for uses of GNULIB_NAMESPACE::func.  */
+# define _GL_CXXALIAS_SYS(func,rettype,parameters) \
+    namespace GNULIB_NAMESPACE                     \
+    {                                              \
+      static rettype (*func) parameters = ::func;  \
+    }                                              \
+    _GL_EXTERN_C int _gl_cxxalias_dummy
+#else
+# define _GL_CXXALIAS_SYS(func,rettype,parameters) \
+    _GL_EXTERN_C int _gl_cxxalias_dummy
+#endif
+
+/* _GL_CXXALIAS_SYS_CAST (func, rettype, parameters);
+   is like  _GL_CXXALIAS_SYS (func, rettype, parameters);
+   except that the C function func may have a slightly different declaration.
+   A cast is used to silence the "invalid conversion" error that would
+   otherwise occur.  */
+#if defined __cplusplus && defined GNULIB_NAMESPACE
+# define _GL_CXXALIAS_SYS_CAST(func,rettype,parameters) \
+    namespace GNULIB_NAMESPACE                          \
+    {                                                   \
+      static rettype (*func) parameters =               \
+        reinterpret_cast<rettype(*)parameters>(::func); \
+    }                                                   \
+    _GL_EXTERN_C int _gl_cxxalias_dummy
+#else
+# define _GL_CXXALIAS_SYS_CAST(func,rettype,parameters) \
+    _GL_EXTERN_C int _gl_cxxalias_dummy
+#endif
+
+/* _GL_CXXALIAS_SYS_CAST2 (func, rettype, parameters, rettype2, parameters2);
+   is like  _GL_CXXALIAS_SYS (func, rettype, parameters);
+   except that the C function is picked among a set of overloaded functions,
+   namely the one with rettype2 and parameters2.  Two consecutive casts
+   are used to silence the "cannot find a match" and "invalid conversion"
+   errors that would otherwise occur.  */
+#if defined __cplusplus && defined GNULIB_NAMESPACE
+  /* The outer cast must be a reinterpret_cast.
+     The inner cast: When the function is defined as a set of overloaded
+     functions, it works as a static_cast<>, choosing the designated variant.
+     When the function is defined as a single variant, it works as a
+     reinterpret_cast<>. The parenthesized cast syntax works both ways.  */
+# define _GL_CXXALIAS_SYS_CAST2(func,rettype,parameters,rettype2,parameters2) \
+    namespace GNULIB_NAMESPACE                                                \
+    {                                                                         \
+      static rettype (*func) parameters =                                     \
+        reinterpret_cast<rettype(*)parameters>(                               \
+          (rettype2(*)parameters2)(::func));                                  \
+    }                                                                         \
+    _GL_EXTERN_C int _gl_cxxalias_dummy
+#else
+# define _GL_CXXALIAS_SYS_CAST2(func,rettype,parameters,rettype2,parameters2) \
+    _GL_EXTERN_C int _gl_cxxalias_dummy
+#endif
+
+/* _GL_CXXALIASWARN (func);
+   causes a warning to be emitted when ::func is used but not when
+   GNULIB_NAMESPACE::func is used.  func must be defined without overloaded
+   variants.  */
+#if defined __cplusplus && defined GNULIB_NAMESPACE
+# define _GL_CXXALIASWARN(func) \
+   _GL_CXXALIASWARN_1 (func, GNULIB_NAMESPACE)
+# define _GL_CXXALIASWARN_1(func,namespace) \
+   _GL_CXXALIASWARN_2 (func, namespace)
+# define _GL_CXXALIASWARN_2(func,namespace) \
+   _GL_WARN_ON_USE (func, \
+                    "The symbol ::" #func " refers to the system function. " \
+                    "Use " #namespace "::" #func " instead.")
+#else
+# define _GL_CXXALIASWARN(func) \
+    _GL_EXTERN_C int _gl_cxxalias_dummy
+#endif
+
+/* _GL_CXXALIASWARN1 (func, rettype, parameters_and_attributes);
+   causes a warning to be emitted when the given overloaded variant of ::func
+   is used but not when GNULIB_NAMESPACE::func is used.  */
+#if defined __cplusplus && defined GNULIB_NAMESPACE
+# define _GL_CXXALIASWARN1(func,rettype,parameters_and_attributes) \
+   _GL_CXXALIASWARN1_1 (func, rettype, parameters_and_attributes, \
+                        GNULIB_NAMESPACE)
+# define _GL_CXXALIASWARN1_1(func,rettype,parameters_and_attributes,namespace) \
+   _GL_CXXALIASWARN1_2 (func, rettype, parameters_and_attributes, namespace)
+# define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \
+   _GL_WARN_ON_USE_CXX (func, rettype, parameters_and_attributes, \
+                        "The symbol ::" #func " refers to the system function. " \
+                        "Use " #namespace "::" #func " instead.")
+#else
+# define _GL_CXXALIASWARN1(func,rettype,parameters_and_attributes) \
+    _GL_EXTERN_C int _gl_cxxalias_dummy
+#endif
+
+#endif /* _GL_CXXDEFS_H */

build-aux/config.rpath

@@ -2,7 +2,7 @@
 # Output a system dependent set of variables, describing how to set the
 # run time search path of shared libraries in an executable.
 #
-#   Copyright 1996-2008 Free Software Foundation, Inc.
+#   Copyright 1996-2010 Free Software Foundation, Inc.
 #   Taken from GNU libtool, 2001
 #   Originally by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996
 #

build-aux/mkinstalldirs

@@ -1,158 +0,0 @@
-#! /bin/sh
-# mkinstalldirs --- make directory hierarchy
-
-scriptversion=2005-06-29.22
-
-# Original author: Noah Friedman <friedman@prep.ai.mit.edu>
-# Created: 1993-05-16
-# Public domain.
-#
-# This file is maintained in Automake, please report
-# bugs to <bug-automake@gnu.org> or send patches to
-# <automake-patches@gnu.org>.
-
-errstatus=0
-dirmode=
-
-usage="\
-Usage: mkinstalldirs [-h] [--help] [--version] [-m MODE] DIR ...
-
-Create each directory DIR (with mode MODE, if specified), including all
-leading file name components.
-
-Report bugs to <bug-automake@gnu.org>."
-
-# process command line arguments
-while test $# -gt 0 ; do
-  case $1 in
-    -h | --help | --h*)         # -h for help
-      echo "$usage"
-      exit $?
-      ;;
-    -m)                         # -m PERM arg
-      shift
-      test $# -eq 0 && { echo "$usage" 1>&2; exit 1; }
-      dirmode=$1
-      shift
-      ;;
-    --version)
-      echo "$0 $scriptversion"
-      exit $?
-      ;;
-    --)                         # stop option processing
-      shift
-      break
-      ;;
-    -*)                         # unknown option
-      echo "$usage" 1>&2
-      exit 1
-      ;;
-    *)                          # first non-opt arg
-      break
-      ;;
-  esac
-done
-
-for file
-do
-  if test -d "$file"; then
-    shift
-  else
-    break
-  fi
-done
-
-case $# in
-  0) exit 0 ;;
-esac
-
-# Solaris 8's mkdir -p isn't thread-safe.  If you mkdir -p a/b and
-# mkdir -p a/c at the same time, both will detect that a is missing,
-# one will create a, then the other will try to create a and die with
-# a "File exists" error.  This is a problem when calling mkinstalldirs
-# from a parallel make.  We use --version in the probe to restrict
-# ourselves to GNU mkdir, which is thread-safe.
-case $dirmode in
-  '')
-    if mkdir -p --version . >/dev/null 2>&1 && test ! -d ./--version; then
-      echo "mkdir -p -- $*"
-      exec mkdir -p -- "$@"
-    else
-      # On NextStep and OpenStep, the `mkdir' command does not
-      # recognize any option.  It will interpret all options as
-      # directories to create, and then abort because `.' already
-      # exists.
-      test -d ./-p && rmdir ./-p
-      test -d ./--version && rmdir ./--version
-    fi
-    ;;
-  *)
-    if mkdir -m "$dirmode" -p --version . >/dev/null 2>&1 &&
-       test ! -d ./--version; then
-      echo "mkdir -m $dirmode -p -- $*"
-      exec mkdir -m "$dirmode" -p -- "$@"
-    else
-      # Clean up after NextStep and OpenStep mkdir.
-      for d in ./-m ./-p ./--version "./$dirmode";
-      do
-        test -d $d && rmdir $d
-      done
-    fi
-    ;;
-esac
-
-for file
-do
-  case $file in
-    /*) pathcomp=/ ;;
-    *)  pathcomp= ;;
-  esac
-  oIFS=$IFS
-  IFS=/
-  set fnord $file
-  shift
-  IFS=$oIFS
-
-  for d
-  do
-    test "x$d" = x && continue
-
-    pathcomp=$pathcomp$d
-    case $pathcomp in
-      -*) pathcomp=./$pathcomp ;;
-    esac
-
-    if test ! -d "$pathcomp"; then
-      echo "mkdir $pathcomp"
-
-      mkdir "$pathcomp" || lasterr=$?
-
-      if test ! -d "$pathcomp"; then
-	errstatus=$lasterr
-      else
-	if test ! -z "$dirmode"; then
-	  echo "chmod $dirmode $pathcomp"
-	  lasterr=
-	  chmod "$dirmode" "$pathcomp" || lasterr=$?
-
-	  if test ! -z "$lasterr"; then
-	    errstatus=$lasterr
-	  fi
-	fi
-      fi
-    fi
-
-    pathcomp=$pathcomp/
-  done
-done
-
-exit $errstatus
-
-# Local Variables:
-# mode: shell-script
-# sh-indentation: 2
-# eval: (add-hook 'write-file-hooks 'time-stamp)
-# time-stamp-start: "scriptversion="
-# time-stamp-format: "%:y-%02m-%02d.%02H"
-# time-stamp-end: "$"
-# End:

build-aux/warn-on-use.h

@@ -0,0 +1,102 @@
+/* A C macro for emitting warnings if a function is used.
+   Copyright (C) 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published
+   by the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* _GL_WARN_ON_USE (function, "literal string") issues a declaration
+   for FUNCTION which will then trigger a compiler warning containing
+   the text of "literal string" anywhere that function is called, if
+   supported by the compiler.  If the compiler does not support this
+   feature, the macro expands to an unused extern declaration.
+
+   This macro is useful for marking a function as a potential
+   portability trap, with the intent that "literal string" include
+   instructions on the replacement function that should be used
+   instead.  However, one of the reasons that a function is a
+   portability trap is if it has the wrong signature.  Declaring
+   FUNCTION with a different signature in C is a compilation error, so
+   this macro must use the same type as any existing declaration so
+   that programs that avoid the problematic FUNCTION do not fail to
+   compile merely because they included a header that poisoned the
+   function.  But this implies that _GL_WARN_ON_USE is only safe to
+   use if FUNCTION is known to already have a declaration.  Use of
+   this macro implies that there must not be any other macro hiding
+   the declaration of FUNCTION; but undefining FUNCTION first is part
+   of the poisoning process anyway (although for symbols that are
+   provided only via a macro, the result is a compilation error rather
+   than a warning containing "literal string").  Also note that in
+   C++, it is only safe to use if FUNCTION has no overloads.
+
+   For an example, it is possible to poison 'getline' by:
+   - adding a call to gl_WARN_ON_USE_PREPARE([[#include <stdio.h>]],
+     [getline]) in configure.ac, which potentially defines
+     HAVE_RAW_DECL_GETLINE
+   - adding this code to a header that wraps the system <stdio.h>:
+     #undef getline
+     #if HAVE_RAW_DECL_GETLINE
+     _GL_WARN_ON_USE (getline, "getline is required by POSIX 2008, but"
+       "not universally present; use the gnulib module getline");
+     #endif
+
+   It is not possible to directly poison global variables.  But it is
+   possible to write a wrapper accessor function, and poison that
+   (less common usage, like &environ, will cause a compilation error
+   rather than issue the nice warning, but the end result of informing
+   the developer about their portability problem is still achieved):
+   #if HAVE_RAW_DECL_ENVIRON
+   static inline char ***rpl_environ (void) { return &environ; }
+   _GL_WARN_ON_USE (rpl_environ, "environ is not always properly declared");
+   # undef environ
+   # define environ (*rpl_environ ())
+   #endif
+   */
+#ifndef _GL_WARN_ON_USE
+
+# if 4 < __GNUC__ || (__GNUC__ == 4 && 3 <= __GNUC_MINOR__)
+/* A compiler attribute is available in gcc versions 4.3.0 and later.  */
+#  define _GL_WARN_ON_USE(function, message) \
+extern __typeof__ (function) function __attribute__ ((__warning__ (message)))
+
+# else /* Unsupported.  */
+#  define _GL_WARN_ON_USE(function, message) \
+_GL_WARN_EXTERN_C int _gl_warn_on_use
+# endif
+#endif
+
+/* _GL_WARN_ON_USE_CXX (function, rettype, parameters_and_attributes, "string")
+   is like _GL_WARN_ON_USE (function, "string"), except that the function is
+   declared with the given prototype, consisting of return type, parameters,
+   and attributes.
+   This variant is useful for overloaded functions in C++. _GL_WARN_ON_USE does
+   not work in this case.  */
+#ifndef _GL_WARN_ON_USE_CXX
+# if 4 < __GNUC__ || (__GNUC__ == 4 && 3 <= __GNUC_MINOR__)
+#  define _GL_WARN_ON_USE_CXX(function,rettype,parameters_and_attributes,msg) \
+extern rettype function parameters_and_attributes \
+     __attribute__ ((__warning__ (msg)))
+# else /* Unsupported.  */
+#  define _GL_WARN_ON_USE_CXX(function,rettype,parameters_and_attributes,msg) \
+_GL_WARN_EXTERN_C int _gl_warn_on_use
+# endif
+#endif
+
+/* _GL_WARN_EXTERN_C declaration;
+   performs the declaration with C linkage.  */
+#ifndef _GL_WARN_EXTERN_C
+# if defined __cplusplus
+#  define _GL_WARN_EXTERN_C extern "C"
+# else
+#  define _GL_WARN_EXTERN_C extern
+# endif
+#endif

gl/alignof.h

@@ -1,5 +1,5 @@
 /* Determine alignment of types.
-   Copyright (C) 2003-2004, 2006, 2009 Free Software Foundation, Inc.
+   Copyright (C) 2003-2004, 2006, 2009-2010 Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -20,14 +20,34 @@
 
 #include <stddef.h>
 
-/* Determine the alignment of a type at compile time.  */
-#if defined __GNUC__
-# define alignof __alignof__
-#elif defined __cplusplus
+/* Determine the alignment of a structure slot (field) of a given type,
+   at compile time.  Note that the result depends on the ABI.
+   Note: The result cannot be used as a value for an 'enum' constant,
+   due to bugs in HP-UX 10.20 cc and AIX 3.2.5 xlc.  */
+#if defined __cplusplus
   template <class type> struct alignof_helper { char __slot1; type __slot2; };
-# define alignof(type) offsetof (alignof_helper<type>, __slot2)
+# define alignof_slot(type) offsetof (alignof_helper<type>, __slot2)
+#else
+# define alignof_slot(type) offsetof (struct { char __slot1; type __slot2; }, __slot2)
+#endif
+
+/* Determine the good alignment of a object of the given type at compile time.
+   Note that this is not necessarily the same as alignof_slot(type).
+   For example, with GNU C on x86 platforms: alignof_type(double) = 8, but
+   - when -malign-double is not specified:  alignof_slot(double) = 4,
+   - when -malign-double is specified:      alignof_slot(double) = 8.
+   Note: The result cannot be used as a value for an 'enum' constant,
+   due to bugs in HP-UX 10.20 cc and AIX 3.2.5 xlc.  */
+#if defined __GNUC__
+# define alignof_type __alignof__
 #else
-# define alignof(type) offsetof (struct { char __slot1; type __slot2; }, __slot2)
+# define alignof_type alignof_slot
 #endif
 
+/* alignof is an alias for alignof_slot semantics, since that's what most
+   callers need.
+   Note: The result cannot be used as a value for an 'enum' constant,
+   due to bugs in HP-UX 10.20 cc and AIX 3.2.5 xlc.  */
+#define alignof alignof_slot
+
 #endif /* _ALIGNOF_H */

gl/alloca.c

@@ -81,37 +81,37 @@ long i00afunc ();
    STACK_DIRECTION = 0 => direction of growth unknown  */
 
 #  ifndef STACK_DIRECTION
-#   define STACK_DIRECTION	0	/* Direction unknown.  */
+#   define STACK_DIRECTION      0       /* Direction unknown.  */
 #  endif
 
 #  if STACK_DIRECTION != 0
 
-#   define STACK_DIR	STACK_DIRECTION	/* Known at compile-time.  */
+#   define STACK_DIR    STACK_DIRECTION /* Known at compile-time.  */
 
 #  else /* STACK_DIRECTION == 0; need run-time code.  */
 
-static int stack_dir;		/* 1 or -1 once known.  */
-#   define STACK_DIR	stack_dir
+static int stack_dir;           /* 1 or -1 once known.  */
+#   define STACK_DIR    stack_dir
 
 static void
 find_stack_direction (void)
 {
-  static char *addr = NULL;	/* Address of first `dummy', once known.  */
-  auto char dummy;		/* To get stack address.  */
+  static char *addr = NULL;     /* Address of first `dummy', once known.  */
+  auto char dummy;              /* To get stack address.  */
 
   if (addr == NULL)
-    {				/* Initial entry.  */
+    {                           /* Initial entry.  */
       addr = ADDRESS_FUNCTION (dummy);
 
-      find_stack_direction ();	/* Recurse once.  */
+      find_stack_direction ();  /* Recurse once.  */
     }
   else
     {
       /* Second entry.  */
       if (ADDRESS_FUNCTION (dummy) > addr)
-	stack_dir = 1;		/* Stack grew upward.  */
+        stack_dir = 1;          /* Stack grew upward.  */
       else
-	stack_dir = -1;		/* Stack grew downward.  */
+        stack_dir = -1;         /* Stack grew downward.  */
     }
 }
 
@@ -124,21 +124,21 @@ find_stack_direction (void)
    It is very important that sizeof(header) agree with malloc
    alignment chunk size.  The following default should work okay.  */
 
-#  ifndef	ALIGN_SIZE
-#   define ALIGN_SIZE	sizeof(double)
+#  ifndef       ALIGN_SIZE
+#   define ALIGN_SIZE   sizeof(double)
 #  endif
 
 typedef union hdr
 {
-  char align[ALIGN_SIZE];	/* To force sizeof(header).  */
+  char align[ALIGN_SIZE];       /* To force sizeof(header).  */
   struct
     {
-      union hdr *next;		/* For chaining headers.  */
-      char *deep;		/* For stack depth measure.  */
+      union hdr *next;          /* For chaining headers.  */
+      char *deep;               /* For stack depth measure.  */
     } h;
 } header;
 
-static header *last_alloca_header = NULL;	/* -> last alloca header.  */
+static header *last_alloca_header = NULL;       /* -> last alloca header.  */
 
 /* Return a pointer to at least SIZE bytes of storage,
    which will be automatically reclaimed upon exit from
@@ -150,11 +150,11 @@ static header *last_alloca_header = NULL;	/* -> last alloca header.  */
 void *
 alloca (size_t size)
 {
-  auto char probe;		/* Probes stack depth: */
+  auto char probe;              /* Probes stack depth: */
   register char *depth = ADDRESS_FUNCTION (probe);
 
 #  if STACK_DIRECTION == 0
-  if (STACK_DIR == 0)		/* Unknown growth direction.  */
+  if (STACK_DIR == 0)           /* Unknown growth direction.  */
     find_stack_direction ();
 #  endif
 
@@ -162,7 +162,7 @@ alloca (size_t size)
      was allocated from deeper in the stack than currently.  */
 
   {
-    register header *hp;	/* Traverses linked list.  */
+    register header *hp;        /* Traverses linked list.  */
 
 #  ifdef emacs
     BLOCK_INPUT;
@@ -170,18 +170,18 @@ alloca (size_t size)
 
     for (hp = last_alloca_header; hp != NULL;)
       if ((STACK_DIR > 0 && hp->h.deep > depth)
-	  || (STACK_DIR < 0 && hp->h.deep < depth))
-	{
-	  register header *np = hp->h.next;
+          || (STACK_DIR < 0 && hp->h.deep < depth))
+        {
+          register header *np = hp->h.next;
 
-	  free (hp);		/* Collect garbage.  */
+          free (hp);            /* Collect garbage.  */
 
-	  hp = np;		/* -> next header.  */
-	}
+          hp = np;              /* -> next header.  */
+        }
       else
-	break;			/* Rest are not deeper.  */
+        break;                  /* Rest are not deeper.  */
 
-    last_alloca_header = hp;	/* -> last valid storage.  */
+    last_alloca_header = hp;    /* -> last valid storage.  */
 
 #  ifdef emacs
     UNBLOCK_INPUT;
@@ -189,7 +189,7 @@ alloca (size_t size)
   }
 
   if (size == 0)
-    return NULL;		/* No allocation required.  */
+    return NULL;                /* No allocation required.  */
 
   /* Allocate combined header + user data storage.  */
 
@@ -229,10 +229,10 @@ alloca (size_t size)
 /* Stack structures for CRAY-1, CRAY X-MP, and CRAY Y-MP */
 struct stack_control_header
   {
-    long shgrow:32;		/* Number of times stack has grown.  */
-    long shaseg:32;		/* Size of increments to stack.  */
-    long shhwm:32;		/* High water mark of stack.  */
-    long shsize:32;		/* Current size of stack (all segments).  */
+    long shgrow:32;             /* Number of times stack has grown.  */
+    long shaseg:32;             /* Size of increments to stack.  */
+    long shhwm:32;              /* High water mark of stack.  */
+    long shsize:32;             /* Current size of stack (all segments).  */
   };
 
 /* The stack segment linkage control information occurs at
@@ -244,21 +244,21 @@ struct stack_control_header
 
 struct stack_segment_linkage
   {
-    long ss[0200];		/* 0200 overflow words.  */
-    long sssize:32;		/* Number of words in this segment.  */
-    long ssbase:32;		/* Offset to stack base.  */
+    long ss[0200];              /* 0200 overflow words.  */
+    long sssize:32;             /* Number of words in this segment.  */
+    long ssbase:32;             /* Offset to stack base.  */
     long:32;
-    long sspseg:32;		/* Offset to linkage control of previous
-				   segment of stack.  */
+    long sspseg:32;             /* Offset to linkage control of previous
+                                   segment of stack.  */
     long:32;
-    long sstcpt:32;		/* Pointer to task common address block.  */
-    long sscsnm;		/* Private control structure number for
-				   microtasking.  */
-    long ssusr1;		/* Reserved for user.  */
-    long ssusr2;		/* Reserved for user.  */
-    long sstpid;		/* Process ID for pid based multi-tasking.  */
-    long ssgvup;		/* Pointer to multitasking thread giveup.  */
-    long sscray[7];		/* Reserved for Cray Research.  */
+    long sstcpt:32;             /* Pointer to task common address block.  */
+    long sscsnm;                /* Private control structure number for
+                                   microtasking.  */
+    long ssusr1;                /* Reserved for user.  */
+    long ssusr2;                /* Reserved for user.  */
+    long sstpid;                /* Process ID for pid based multi-tasking.  */
+    long ssgvup;                /* Pointer to multitasking thread giveup.  */
+    long sscray[7];             /* Reserved for Cray Research.  */
     long ssa0;
     long ssa1;
     long ssa2;
@@ -282,27 +282,27 @@ struct stack_segment_linkage
    returned by the STKSTAT library routine.  */
 struct stk_stat
   {
-    long now;			/* Current total stack size.  */
-    long maxc;			/* Amount of contiguous space which would
-				   be required to satisfy the maximum
-				   stack demand to date.  */
-    long high_water;		/* Stack high-water mark.  */
-    long overflows;		/* Number of stack overflow ($STKOFEN) calls.  */
-    long hits;			/* Number of internal buffer hits.  */
-    long extends;		/* Number of block extensions.  */
-    long stko_mallocs;		/* Block allocations by $STKOFEN.  */
-    long underflows;		/* Number of stack underflow calls ($STKRETN).  */
-    long stko_free;		/* Number of deallocations by $STKRETN.  */
-    long stkm_free;		/* Number of deallocations by $STKMRET.  */
-    long segments;		/* Current number of stack segments.  */
-    long maxs;			/* Maximum number of stack segments so far.  */
-    long pad_size;		/* Stack pad size.  */
-    long current_address;	/* Current stack segment address.  */
-    long current_size;		/* Current stack segment size.  This
-				   number is actually corrupted by STKSTAT to
-				   include the fifteen word trailer area.  */
-    long initial_address;	/* Address of initial segment.  */
-    long initial_size;		/* Size of initial segment.  */
+    long now;                   /* Current total stack size.  */
+    long maxc;                  /* Amount of contiguous space which would
+                                   be required to satisfy the maximum
+                                   stack demand to date.  */
+    long high_water;            /* Stack high-water mark.  */
+    long overflows;             /* Number of stack overflow ($STKOFEN) calls.  */
+    long hits;                  /* Number of internal buffer hits.  */
+    long extends;               /* Number of block extensions.  */
+    long stko_mallocs;          /* Block allocations by $STKOFEN.  */
+    long underflows;            /* Number of stack underflow calls ($STKRETN).  */
+    long stko_free;             /* Number of deallocations by $STKRETN.  */
+    long stkm_free;             /* Number of deallocations by $STKMRET.  */
+    long segments;              /* Current number of stack segments.  */
+    long maxs;                  /* Maximum number of stack segments so far.  */
+    long pad_size;              /* Stack pad size.  */
+    long current_address;       /* Current stack segment address.  */
+    long current_size;          /* Current stack segment size.  This
+                                   number is actually corrupted by STKSTAT to
+                                   include the fifteen word trailer area.  */
+    long initial_address;       /* Address of initial segment.  */
+    long initial_size;          /* Size of initial segment.  */
   };
 
 /* The following structure describes the data structure which trails
@@ -311,13 +311,13 @@ struct stk_stat
 
 struct stk_trailer
   {
-    long this_address;		/* Address of this block.  */
-    long this_size;		/* Size of this block (does not include
-				   this trailer).  */
+    long this_address;          /* Address of this block.  */
+    long this_size;             /* Size of this block (does not include
+                                   this trailer).  */
     long unknown2;
     long unknown3;
-    long link;			/* Address of trailer block of previous
-				   segment.  */
+    long link;                  /* Address of trailer block of previous
+                                   segment.  */
     long unknown5;
     long unknown6;
     long unknown7;
@@ -355,8 +355,8 @@ i00afunc (long *address)
   /* Set up the iteration.  */
 
   trailer = (struct stk_trailer *) (status.current_address
-				    + status.current_size
-				    - 15);
+                                    + status.current_size
+                                    - 15);
 
   /* There must be at least one stack segment.  Therefore it is
      a fatal error if "trailer" is null.  */
@@ -371,10 +371,10 @@ i00afunc (long *address)
       block = (long *) trailer->this_address;
       size = trailer->this_size;
       if (block == 0 || size == 0)
-	abort ();
+        abort ();
       trailer = (struct stk_trailer *) trailer->link;
       if ((block <= address) && (address < (block + size)))
-	break;
+        break;
     }
 
   /* Set the result to the offset in this segment and add the sizes
@@ -390,7 +390,7 @@ i00afunc (long *address)
   do
     {
       if (trailer->this_size <= 0)
-	abort ();
+        abort ();
       result += trailer->this_size;
       trailer = (struct stk_trailer *) trailer->link;
     }
@@ -453,7 +453,7 @@ i00afunc (long address)
       fprintf (stderr, "%011o %011o %011o\n", this_segment, address, stkl);
 #    endif
       if (pseg == 0)
-	break;
+        break;
       stkl = stkl - pseg;
       ssptr = (struct stack_segment_linkage *) stkl;
       size = ssptr->sssize;

gl/alloca.in.h

@@ -1,7 +1,7 @@
 /* Memory allocation on the stack.
 
-   Copyright (C) 1995, 1999, 2001-2004, 2006-2008 Free Software
-   Foundation, Inc.
+   Copyright (C) 1995, 1999, 2001-2004, 2006-2010 Free Software Foundation,
+   Inc.
 
    This program is free software; you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published

gl/arpa_inet.in.h

@@ -1,6 +1,6 @@
 /* A GNU-like <arpa/inet.h>.
 
-   Copyright (C) 2005-2006, 2008 Free Software Foundation, Inc.
+   Copyright (C) 2005-2006, 2008-2010 Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -18,16 +18,19 @@
 
 #ifndef _GL_ARPA_INET_H
 
+#if __GNUC__ >= 3
+@PRAGMA_SYSTEM_HEADER@
+#endif
+
 /* Gnulib's sys/socket.h is responsible for pulling in winsock2.h etc
-   under MinGW. */
-#include <sys/socket.h>
+   under MinGW.
+   But avoid namespace pollution on glibc systems.  */
+#ifndef __GLIBC__
+# include <sys/socket.h>
+#endif
 
 #if @HAVE_ARPA_INET_H@
 
-# if __GNUC__ >= 3
-@PRAGMA_SYSTEM_HEADER@
-# endif
-
 /* The include_next requires a split double-inclusion guard.  */
 # @INCLUDE_NEXT@ @NEXT_ARPA_INET_H@
 
@@ -36,7 +39,9 @@
 #ifndef _GL_ARPA_INET_H
 #define _GL_ARPA_INET_H
 
-/* The definition of GL_LINK_WARNING is copied here.  */
+/* The definition of _GL_ARG_NONNULL is copied here.  */
+
+/* The definition of _GL_WARN_ON_USE is copied here.  */
 
 #ifdef __cplusplus
 extern "C" {
@@ -60,26 +65,28 @@ extern "C" {
    For more details, see the POSIX:2001 specification
    <http://www.opengroup.org/susv3xsh/inet_ntop.html>.  */
 extern const char *inet_ntop (int af, const void *restrict src,
-			      char *restrict dst, socklen_t cnt);
+                              char *restrict dst, socklen_t cnt)
+     _GL_ARG_NONNULL ((2, 3));
 # endif
 #elif defined GNULIB_POSIXCHECK
 # undef inet_ntop
-# define inet_ntop(af,src,dst,cnt) \
-    (GL_LINK_WARNING ("inet_ntop is unportable - " \
-                      "use gnulib module inet_ntop for portability"), \
-     inet_ntop (af, src, dst, cnt))
+# if HAVE_RAW_DECL_INET_NTOP
+_GL_WARN_ON_USE (inet_ntop, "inet_ntop is unportable - "
+                 "use gnulib module inet_ntop for portability");
+# endif
 #endif
 
 #if @GNULIB_INET_PTON@
 # if !@HAVE_DECL_INET_PTON@
-extern int inet_pton (int af, const char *restrict src, void *restrict dst);
+extern int inet_pton (int af, const char *restrict src, void *restrict dst)
+     _GL_ARG_NONNULL ((2, 3));
 # endif
 #elif defined GNULIB_POSIXCHECK
 # undef inet_pton
-# define inet_pton(af,src,dst) \
-  (GL_LINK_WARNING ("inet_pton is unportable - " \
-		    "use gnulib module inet_pton for portability"), \
-   inet_pton (af, src, dst))
+# if HAVE_RAW_DECL_INET_PTON
+_GL_WARN_ON_USE (inet_pton, "inet_pton is unportable - "
+                 "use gnulib module inet_pton for portability");
+# endif
 #endif
 
 #ifdef __cplusplus

gl/asnprintf.c

@@ -1,5 +1,5 @@
 /* Formatted output to strings.
-   Copyright (C) 1999, 2002, 2006 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006, 2009, 2010 Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by

gl/asprintf.c

@@ -1,5 +1,6 @@
 /* Formatted output to strings.
-   Copyright (C) 1999, 2002, 2006-2007 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002, 2006-2007, 2009-2010 Free Software Foundation,
+   Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by

gl/base64.c

@@ -1,5 +1,5 @@
 /* base64.c -- Encode binary data using printable characters.
-   Copyright (C) 1999, 2000, 2001, 2004, 2005, 2006 Free Software
+   Copyright (C) 1999, 2000, 2001, 2004, 2005, 2006, 2009, 2010 Free Software
    Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
@@ -67,7 +67,7 @@ to_uchar (char ch)
    terminate the output buffer. */
 void
 base64_encode (const char *restrict in, size_t inlen,
-	       char *restrict out, size_t outlen)
+               char *restrict out, size_t outlen)
 {
   static const char b64str[64] =
     "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
@@ -76,27 +76,27 @@ base64_encode (const char *restrict in, size_t inlen,
     {
       *out++ = b64str[(to_uchar (in[0]) >> 2) & 0x3f];
       if (!--outlen)
-	break;
+        break;
       *out++ = b64str[((to_uchar (in[0]) << 4)
-		       + (--inlen ? to_uchar (in[1]) >> 4 : 0))
-		      & 0x3f];
+                       + (--inlen ? to_uchar (in[1]) >> 4 : 0))
+                      & 0x3f];
       if (!--outlen)
-	break;
+        break;
       *out++ =
-	(inlen
-	 ? b64str[((to_uchar (in[1]) << 2)
-		   + (--inlen ? to_uchar (in[2]) >> 6 : 0))
-		  & 0x3f]
-	 : '=');
+        (inlen
+         ? b64str[((to_uchar (in[1]) << 2)
+                   + (--inlen ? to_uchar (in[2]) >> 6 : 0))
+                  & 0x3f]
+         : '=');
       if (!--outlen)
-	break;
+        break;
       *out++ = inlen ? b64str[to_uchar (in[2]) & 0x3f] : '=';
       if (!--outlen)
-	break;
+        break;
       if (inlen)
-	inlen--;
+        inlen--;
       if (inlen)
-	in += 3;
+        in += 3;
     }
 
   if (outlen)
@@ -153,71 +153,71 @@ base64_encode_alloc (const char *in, size_t inlen, char **out)
 
    IBM C V6 for AIX mishandles "#define B64(x) ...'x'...", so use "_"
    as the formal parameter rather than "x".  */
-#define B64(_)					\
-  ((_) == 'A' ? 0				\
-   : (_) == 'B' ? 1				\
-   : (_) == 'C' ? 2				\
-   : (_) == 'D' ? 3				\
-   : (_) == 'E' ? 4				\
-   : (_) == 'F' ? 5				\
-   : (_) == 'G' ? 6				\
-   : (_) == 'H' ? 7				\
-   : (_) == 'I' ? 8				\
-   : (_) == 'J' ? 9				\
-   : (_) == 'K' ? 10				\
-   : (_) == 'L' ? 11				\
-   : (_) == 'M' ? 12				\
-   : (_) == 'N' ? 13				\
-   : (_) == 'O' ? 14				\
-   : (_) == 'P' ? 15				\
-   : (_) == 'Q' ? 16				\
-   : (_) == 'R' ? 17				\
-   : (_) == 'S' ? 18				\
-   : (_) == 'T' ? 19				\
-   : (_) == 'U' ? 20				\
-   : (_) == 'V' ? 21				\
-   : (_) == 'W' ? 22				\
-   : (_) == 'X' ? 23				\
-   : (_) == 'Y' ? 24				\
-   : (_) == 'Z' ? 25				\
-   : (_) == 'a' ? 26				\
-   : (_) == 'b' ? 27				\
-   : (_) == 'c' ? 28				\
-   : (_) == 'd' ? 29				\
-   : (_) == 'e' ? 30				\
-   : (_) == 'f' ? 31				\
-   : (_) == 'g' ? 32				\
-   : (_) == 'h' ? 33				\
-   : (_) == 'i' ? 34				\
-   : (_) == 'j' ? 35				\
-   : (_) == 'k' ? 36				\
-   : (_) == 'l' ? 37				\
-   : (_) == 'm' ? 38				\
-   : (_) == 'n' ? 39				\
-   : (_) == 'o' ? 40				\
-   : (_) == 'p' ? 41				\
-   : (_) == 'q' ? 42				\
-   : (_) == 'r' ? 43				\
-   : (_) == 's' ? 44				\
-   : (_) == 't' ? 45				\
-   : (_) == 'u' ? 46				\
-   : (_) == 'v' ? 47				\
-   : (_) == 'w' ? 48				\
-   : (_) == 'x' ? 49				\
-   : (_) == 'y' ? 50				\
-   : (_) == 'z' ? 51				\
-   : (_) == '0' ? 52				\
-   : (_) == '1' ? 53				\
-   : (_) == '2' ? 54				\
-   : (_) == '3' ? 55				\
-   : (_) == '4' ? 56				\
-   : (_) == '5' ? 57				\
-   : (_) == '6' ? 58				\
-   : (_) == '7' ? 59				\
-   : (_) == '8' ? 60				\
-   : (_) == '9' ? 61				\
-   : (_) == '+' ? 62				\
-   : (_) == '/' ? 63				\
+#define B64(_)                                  \
+  ((_) == 'A' ? 0                               \
+   : (_) == 'B' ? 1                             \
+   : (_) == 'C' ? 2                             \
+   : (_) == 'D' ? 3                             \
+   : (_) == 'E' ? 4                             \
+   : (_) == 'F' ? 5                             \
+   : (_) == 'G' ? 6                             \
+   : (_) == 'H' ? 7                             \
+   : (_) == 'I' ? 8                             \
+   : (_) == 'J' ? 9                             \
+   : (_) == 'K' ? 10                            \
+   : (_) == 'L' ? 11                            \
+   : (_) == 'M' ? 12                            \
+   : (_) == 'N' ? 13                            \
+   : (_) == 'O' ? 14                            \
+   : (_) == 'P' ? 15                            \
+   : (_) == 'Q' ? 16                            \
+   : (_) == 'R' ? 17                            \
+   : (_) == 'S' ? 18                            \
+   : (_) == 'T' ? 19                            \
+   : (_) == 'U' ? 20                            \
+   : (_) == 'V' ? 21                            \
+   : (_) == 'W' ? 22                            \
+   : (_) == 'X' ? 23                            \
+   : (_) == 'Y' ? 24                            \
+   : (_) == 'Z' ? 25                            \
+   : (_) == 'a' ? 26                            \
+   : (_) == 'b' ? 27                            \
+   : (_) == 'c' ? 28                            \
+   : (_) == 'd' ? 29                            \
+   : (_) == 'e' ? 30                            \
+   : (_) == 'f' ? 31                            \
+   : (_) == 'g' ? 32                            \
+   : (_) == 'h' ? 33                            \
+   : (_) == 'i' ? 34                            \
+   : (_) == 'j' ? 35                            \
+   : (_) == 'k' ? 36                            \
+   : (_) == 'l' ? 37                            \
+   : (_) == 'm' ? 38                            \
+   : (_) == 'n' ? 39                            \
+   : (_) == 'o' ? 40                            \
+   : (_) == 'p' ? 41                            \
+   : (_) == 'q' ? 42                            \
+   : (_) == 'r' ? 43                            \
+   : (_) == 's' ? 44                            \
+   : (_) == 't' ? 45                            \
+   : (_) == 'u' ? 46                            \
+   : (_) == 'v' ? 47                            \
+   : (_) == 'w' ? 48                            \
+   : (_) == 'x' ? 49                            \
+   : (_) == 'y' ? 50                            \
+   : (_) == 'z' ? 51                            \
+   : (_) == '0' ? 52                            \
+   : (_) == '1' ? 53                            \
+   : (_) == '2' ? 54                            \
+   : (_) == '3' ? 55                            \
+   : (_) == '4' ? 56                            \
+   : (_) == '5' ? 57                            \
+   : (_) == '6' ? 58                            \
+   : (_) == '7' ? 59                            \
+   : (_) == '8' ? 60                            \
+   : (_) == '9' ? 61                            \
+   : (_) == '+' ? 62                            \
+   : (_) == '/' ? 63                            \
    : -1)
 
 static const signed char b64[0x100] = {
@@ -328,12 +328,12 @@ get_4 (struct base64_decode_context *ctx,
     {
       char const *t = *in;
       if (4 <= in_end - *in && memchr (t, '\n', 4) == NULL)
-	{
-	  /* This is the common case: no newline.  */
-	  *in += 4;
-	  *n_non_newline = 4;
-	  return (char *) t;
-	}
+        {
+          /* This is the common case: no newline.  */
+          *in += 4;
+          *n_non_newline = 4;
+          return (char *) t;
+        }
     }
 
   {
@@ -341,13 +341,13 @@ get_4 (struct base64_decode_context *ctx,
     char const *p = *in;
     while (p < in_end)
       {
-	char c = *p++;
-	if (c != '\n')
-	  {
-	    ctx->buf[ctx->i++] = c;
-	    if (ctx->i == 4)
-	      break;
-	  }
+        char c = *p++;
+        if (c != '\n')
+          {
+            ctx->buf[ctx->i++] = c;
+            if (ctx->i == 4)
+              break;
+          }
       }
 
     *in = p;
@@ -356,12 +356,12 @@ get_4 (struct base64_decode_context *ctx,
   }
 }
 
-#define return_false				\
-  do						\
-    {						\
-      *outp = out;				\
-      return false;				\
-    }						\
+#define return_false                            \
+  do                                            \
+    {                                           \
+      *outp = out;                              \
+      return false;                             \
+    }                                           \
   while (false)
 
 /* Decode up to four bytes of base64-encoded data, IN, of length INLEN
@@ -372,7 +372,7 @@ get_4 (struct base64_decode_context *ctx,
    *OUTLEN to reflect the number of bytes remaining in *OUT.  */
 static inline bool
 decode_4 (char const *restrict in, size_t inlen,
-	  char *restrict *outp, size_t *outleft)
+          char *restrict *outp, size_t *outleft)
 {
   char *out = *outp;
   if (inlen < 2)
@@ -384,7 +384,7 @@ decode_4 (char const *restrict in, size_t inlen,
   if (*outleft)
     {
       *out++ = ((b64[to_uchar (in[0])] << 2)
-		| (b64[to_uchar (in[1])] >> 4));
+                | (b64[to_uchar (in[1])] >> 4));
       --*outleft;
     }
 
@@ -394,43 +394,43 @@ decode_4 (char const *restrict in, size_t inlen,
   if (in[2] == '=')
     {
       if (inlen != 4)
-	return_false;
+        return_false;
 
       if (in[3] != '=')
-	return_false;
+        return_false;
     }
   else
     {
       if (!isbase64 (in[2]))
-	return_false;
+        return_false;
 
       if (*outleft)
-	{
-	  *out++ = (((b64[to_uchar (in[1])] << 4) & 0xf0)
-		    | (b64[to_uchar (in[2])] >> 2));
-	  --*outleft;
-	}
+        {
+          *out++ = (((b64[to_uchar (in[1])] << 4) & 0xf0)
+                    | (b64[to_uchar (in[2])] >> 2));
+          --*outleft;
+        }
 
       if (inlen == 3)
-	return_false;
+        return_false;
 
       if (in[3] == '=')
-	{
-	  if (inlen != 4)
-	    return_false;
-	}
+        {
+          if (inlen != 4)
+            return_false;
+        }
       else
-	{
-	  if (!isbase64 (in[3]))
-	    return_false;
-
-	  if (*outleft)
-	    {
-	      *out++ = (((b64[to_uchar (in[2])] << 6) & 0xc0)
-			| b64[to_uchar (in[3])]);
-	      --*outleft;
-	    }
-	}
+        {
+          if (!isbase64 (in[3]))
+            return_false;
+
+          if (*outleft)
+            {
+              *out++ = (((b64[to_uchar (in[2])] << 6) & 0xc0)
+                        | b64[to_uchar (in[3])]);
+              --*outleft;
+            }
+        }
     }
 
   *outp = out;
@@ -457,8 +457,8 @@ decode_4 (char const *restrict in, size_t inlen,
 
 bool
 base64_decode_ctx (struct base64_decode_context *ctx,
-		   const char *restrict in, size_t inlen,
-		   char *restrict out, size_t *outlen)
+                   const char *restrict in, size_t inlen,
+                   char *restrict out, size_t *outlen)
 {
   size_t outleft = *outlen;
   bool ignore_newlines = ctx != NULL;
@@ -476,57 +476,57 @@ base64_decode_ctx (struct base64_decode_context *ctx,
     {
       size_t outleft_save = outleft;
       if (ctx_i == 0 && !flush_ctx)
-	{
-	  while (true)
-	    {
-	      /* Save a copy of outleft, in case we need to re-parse this
-		 block of four bytes.  */
-	      outleft_save = outleft;
-	      if (!decode_4 (in, inlen, &out, &outleft))
-		break;
-
-	      in += 4;
-	      inlen -= 4;
-	    }
-	}
+        {
+          while (true)
+            {
+              /* Save a copy of outleft, in case we need to re-parse this
+                 block of four bytes.  */
+              outleft_save = outleft;
+              if (!decode_4 (in, inlen, &out, &outleft))
+                break;
+
+              in += 4;
+              inlen -= 4;
+            }
+        }
 
       if (inlen == 0 && !flush_ctx)
-	break;
+        break;
 
       /* Handle the common case of 72-byte wrapped lines.
-	 This also handles any other multiple-of-4-byte wrapping.  */
+         This also handles any other multiple-of-4-byte wrapping.  */
       if (inlen && *in == '\n' && ignore_newlines)
-	{
-	  ++in;
-	  --inlen;
-	  continue;
-	}
+        {
+          ++in;
+          --inlen;
+          continue;
+        }
 
       /* Restore OUT and OUTLEFT.  */
       out -= outleft_save - outleft;
       outleft = outleft_save;
 
       {
-	char const *in_end = in + inlen;
-	char const *non_nl;
-
-	if (ignore_newlines)
-	  non_nl = get_4 (ctx, &in, in_end, &inlen);
-	else
-	  non_nl = in;  /* Might have nl in this case. */
-
-	/* If the input is empty or consists solely of newlines (0 non-newlines),
-	   then we're done.  Likewise if there are fewer than 4 bytes when not
-	   flushing context and not treating newlines as garbage.  */
-	if (inlen == 0 || (inlen < 4 && !flush_ctx && ignore_newlines))
-	  {
-	    inlen = 0;
-	    break;
-	  }
-	if (!decode_4 (non_nl, inlen, &out, &outleft))
-	  break;
-
-	inlen = in_end - in;
+        char const *in_end = in + inlen;
+        char const *non_nl;
+
+        if (ignore_newlines)
+          non_nl = get_4 (ctx, &in, in_end, &inlen);
+        else
+          non_nl = in;  /* Might have nl in this case. */
+
+        /* If the input is empty or consists solely of newlines (0 non-newlines),
+           then we're done.  Likewise if there are fewer than 4 bytes when not
+           flushing context and not treating newlines as garbage.  */
+        if (inlen == 0 || (inlen < 4 && !flush_ctx && ignore_newlines))
+          {
+            inlen = 0;
+            break;
+          }
+        if (!decode_4 (non_nl, inlen, &out, &outleft))
+          break;
+
+        inlen = in_end - in;
       }
     }
 
@@ -548,8 +548,8 @@ base64_decode_ctx (struct base64_decode_context *ctx,
    undefined. */
 bool
 base64_decode_alloc_ctx (struct base64_decode_context *ctx,
-			 const char *in, size_t inlen, char **out,
-			 size_t *outlen)
+                         const char *in, size_t inlen, char **out,
+                         size_t *outlen)
 {
   /* This may allocate a few bytes too many, depending on input,
      but it's not worth the extra CPU time to compute the exact size.

gl/base64.h

@@ -1,5 +1,5 @@
 /* base64.h -- Encode binary data using printable characters.
-   Copyright (C) 2004, 2005, 2006 Free Software Foundation, Inc.
+   Copyright (C) 2004, 2005, 2006, 2009, 2010 Free Software Foundation, Inc.
    Written by Simon Josefsson.
 
    This program is free software; you can redistribute it and/or modify
@@ -38,24 +38,24 @@ struct base64_decode_context
 extern bool isbase64 (char ch);
 
 extern void base64_encode (const char *restrict in, size_t inlen,
-			   char *restrict out, size_t outlen);
+                           char *restrict out, size_t outlen);
 
 extern size_t base64_encode_alloc (const char *in, size_t inlen, char **out);
 
 extern void base64_decode_ctx_init (struct base64_decode_context *ctx);
 
 extern bool base64_decode_ctx (struct base64_decode_context *ctx,
-			       const char *restrict in, size_t inlen,
-			       char *restrict out, size_t *outlen);
+                               const char *restrict in, size_t inlen,
+                               char *restrict out, size_t *outlen);
 
 extern bool base64_decode_alloc_ctx (struct base64_decode_context *ctx,
-				     const char *in, size_t inlen,
-				     char **out, size_t *outlen);
+                                     const char *in, size_t inlen,
+                                     char **out, size_t *outlen);
 
 #define base64_decode(in, inlen, out, outlen) \
-	base64_decode_ctx (NULL, in, inlen, out, outlen)
+        base64_decode_ctx (NULL, in, inlen, out, outlen)
 
 #define base64_decode_alloc(in, inlen, out, outlen) \
-	base64_decode_alloc_ctx (NULL, in, inlen, out, outlen)
+        base64_decode_alloc_ctx (NULL, in, inlen, out, outlen)
 
 #endif /* BASE64_H */

gl/basename-lgpl.c

@@ -0,0 +1,75 @@
+/* basename.c -- return the last element in a file name
+
+   Copyright (C) 1990, 1998-2001, 2003-2006, 2009-2010 Free Software
+   Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+#include "dirname.h"
+
+#include <string.h>
+
+/* Return the address of the last file name component of NAME.  If
+   NAME has no relative file name components because it is a file
+   system root, return the empty string.  */
+
+char *
+last_component (char const *name)
+{
+  char const *base = name + FILE_SYSTEM_PREFIX_LEN (name);
+  char const *p;
+  bool saw_slash = false;
+
+  while (ISSLASH (*base))
+    base++;
+
+  for (p = base; *p; p++)
+    {
+      if (ISSLASH (*p))
+        saw_slash = true;
+      else if (saw_slash)
+        {
+          base = p;
+          saw_slash = false;
+        }
+    }
+
+  return (char *) base;
+}
+
+/* Return the length of the basename NAME.  Typically NAME is the
+   value returned by base_name or last_component.  Act like strlen
+   (NAME), except omit all trailing slashes.  */
+
+size_t
+base_len (char const *name)
+{
+  size_t len;
+  size_t prefix_len = FILE_SYSTEM_PREFIX_LEN (name);
+
+  for (len = strlen (name);  1 < len && ISSLASH (name[len - 1]);  len--)
+    continue;
+
+  if (DOUBLE_SLASH_IS_DISTINCT_ROOT && len == 1
+      && ISSLASH (name[0]) && ISSLASH (name[1]) && ! name[2])
+    return 2;
+
+  if (FILE_SYSTEM_DRIVE_PREFIX_CAN_BE_RELATIVE && prefix_len
+      && len == prefix_len && ISSLASH (name[prefix_len]))
+    return prefix_len + 1;
+
+  return len;
+}

gl/basename.c

@@ -1,7 +1,7 @@
 /* basename.c -- return the last element in a file name
 
-   Copyright (C) 1990, 1998, 1999, 2000, 2001, 2003, 2004, 2005, 2006 Free
-   Software Foundation, Inc.
+   Copyright (C) 1990, 1998-2001, 2003-2006, 2009-2010 Free Software
+   Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -24,52 +24,6 @@
 #include "xalloc.h"
 #include "xstrndup.h"
 
-/* Return the address of the last file name component of NAME.  If
-   NAME has no relative file name components because it is a file
-   system root, return the empty string.  */
-
-char *
-last_component (char const *name)
-{
-  char const *base = name + FILE_SYSTEM_PREFIX_LEN (name);
-  char const *p;
-  bool saw_slash = false;
-
-  while (ISSLASH (*base))
-    base++;
-
-  for (p = base; *p; p++)
-    {
-      if (ISSLASH (*p))
-	saw_slash = true;
-      else if (saw_slash)
-	{
-	  base = p;
-	  saw_slash = false;
-	}
-    }
-
-  return (char *) base;
-}
-
-
-/* In general, we can't use the builtin `basename' function if available,
-   since it has different meanings in different environments.
-   In some environments the builtin `basename' modifies its argument.
-
-   Return the last file name component of NAME, allocated with
-   xmalloc.  On systems with drive letters, a leading "./"
-   distinguishes relative names that would otherwise look like a drive
-   letter.  Unlike POSIX basename(), NAME cannot be NULL,
-   base_name("") returns "", and the first trailing slash is not
-   stripped.
-
-   If lstat (NAME) would succeed, then { chdir (dir_name (NAME));
-   lstat (base_name (NAME)); } will access the same file.  Likewise,
-   if the sequence { chdir (dir_name (NAME));
-   rename (base_name (NAME), "foo"); } succeeds, you have renamed NAME
-   to "foo" in the same directory NAME was in.  */
-
 char *
 base_name (char const *name)
 {
@@ -102,27 +56,3 @@ base_name (char const *name)
   /* Finally, copy the basename.  */
   return xstrndup (base, length);
 }
-
-/* Return the length of the basename NAME.  Typically NAME is the
-   value returned by base_name or last_component.  Act like strlen
-   (NAME), except omit all trailing slashes.  */
-
-size_t
-base_len (char const *name)
-{
-  size_t len;
-  size_t prefix_len = FILE_SYSTEM_PREFIX_LEN (name);
-
-  for (len = strlen (name);  1 < len && ISSLASH (name[len - 1]);  len--)
-    continue;
-
-  if (DOUBLE_SLASH_IS_DISTINCT_ROOT && len == 1
-      && ISSLASH (name[0]) && ISSLASH (name[1]) && ! name[2])
-    return 2;
-
-  if (FILE_SYSTEM_DRIVE_PREFIX_CAN_BE_RELATIVE && prefix_len
-      && len == prefix_len && ISSLASH (name[prefix_len]))
-    return prefix_len + 1;
-
-  return len;
-}

gl/btowc.c

@@ -1,5 +1,5 @@
 /* Convert unibyte character to wide character.
-   Copyright (C) 2008 Free Software Foundation, Inc.
+   Copyright (C) 2008, 2010 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2008.
 
    This program is free software: you can redistribute it and/or modify
@@ -21,6 +21,7 @@
 #include <wchar.h>
 
 #include <stdio.h>
+#include <stdlib.h>
 
 wint_t
 btowc (int c)
@@ -32,7 +33,7 @@ btowc (int c)
 
       buf[0] = c;
       if (mbtowc (&wc, buf, 1) >= 0)
-	return wc;
+        return wc;
     }
   return WEOF;
 }

gl/c-strtod.c

@@ -1,6 +1,6 @@
 /* Convert string to double, using the C locale.
 
-   Copyright (C) 2003, 2004, 2006, 2009 Free Software Foundation, Inc.
+   Copyright (C) 2003-2004, 2006, 2009-2010 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -73,7 +73,7 @@ C_STRTOD (char const *nptr, char **endptr)
   if (!locale)
     {
       if (endptr)
-	*endptr = (char *) nptr;
+        *endptr = (char *) nptr;
       return 0; /* errno is set here */
     }
 
@@ -87,11 +87,11 @@ C_STRTOD (char const *nptr, char **endptr)
     {
       saved_locale = strdup (saved_locale);
       if (saved_locale == NULL)
-	{
-	  if (endptr)
-	    *endptr = (char *) nptr;
-	  return 0; /* errno is set here */
-	}
+        {
+          if (endptr)
+            *endptr = (char *) nptr;
+          return 0; /* errno is set here */
+        }
       setlocale (LC_NUMERIC, "C");
     }
 

gl/c-strtod.h

@@ -1,6 +1,6 @@
 /* Convert string to double, using the C locale.
 
-   Copyright (C) 2003-2004, 2009 Free Software Foundation, Inc.
+   Copyright (C) 2003-2004, 2009-2010 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by

gl/cloexec.c

@@ -1,6 +1,6 @@
 /* closexec.c - set or clear the close-on-exec descriptor flag
 
-   Copyright (C) 1991, 2004, 2005, 2006 Free Software Foundation, Inc.
+   Copyright (C) 1991, 2004-2006, 2009-2010 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -21,21 +21,24 @@
 
 #include "cloexec.h"
 
-#include <unistd.h>
+#include <errno.h>
 #include <fcntl.h>
-
-#ifndef FD_CLOEXEC
-# define FD_CLOEXEC 1
-#endif
+#include <unistd.h>
 
 /* Set the `FD_CLOEXEC' flag of DESC if VALUE is true,
    or clear the flag if VALUE is false.
-   Return 0 on success, or -1 on error with `errno' set. */
+   Return 0 on success, or -1 on error with `errno' set.
+
+   Note that on MingW, this function does NOT protect DESC from being
+   inherited into spawned children.  Instead, either use dup_cloexec
+   followed by closing the original DESC, or use interfaces such as
+   open or pipe2 that accept flags like O_CLOEXEC to create DESC
+   non-inheritable in the first place.  */
 
 int
 set_cloexec_flag (int desc, bool value)
 {
-#if defined F_GETFD && defined F_SETFD
+#ifdef F_SETFD
 
   int flags = fcntl (desc, F_GETFD, 0);
 
@@ -44,15 +47,37 @@ set_cloexec_flag (int desc, bool value)
       int newflags = (value ? flags | FD_CLOEXEC : flags & ~FD_CLOEXEC);
 
       if (flags == newflags
-	  || fcntl (desc, F_SETFD, newflags) != -1)
-	return 0;
+          || fcntl (desc, F_SETFD, newflags) != -1)
+        return 0;
     }
 
   return -1;
 
-#else
+#else /* !F_SETFD */
+
+  /* Use dup2 to reject invalid file descriptors; the cloexec flag
+     will be unaffected.  */
+  if (desc < 0)
+    {
+      errno = EBADF;
+      return -1;
+    }
+  if (dup2 (desc, desc) < 0)
+    /* errno is EBADF here.  */
+    return -1;
 
+  /* There is nothing we can do on this kind of platform.  Punt.  */
   return 0;
+#endif /* !F_SETFD */
+}
+
 
-#endif
+/* Duplicates a file handle FD, while marking the copy to be closed
+   prior to exec or spawn.  Returns -1 and sets errno if FD could not
+   be duplicated.  */
+
+int
+dup_cloexec (int fd)
+{
+  return fcntl (fd, F_DUPFD_CLOEXEC, 0);
 }

gl/cloexec.h

@@ -1,2 +1,38 @@
+/* closexec.c - set or clear the close-on-exec descriptor flag
+
+   Copyright (C) 2004, 2009-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+*/
+
 #include <stdbool.h>
+
+/* Set the `FD_CLOEXEC' flag of DESC if VALUE is true,
+   or clear the flag if VALUE is false.
+   Return 0 on success, or -1 on error with `errno' set.
+
+   Note that on MingW, this function does NOT protect DESC from being
+   inherited into spawned children.  Instead, either use dup_cloexec
+   followed by closing the original DESC, or use interfaces such as
+   open or pipe2 that accept flags like O_CLOEXEC to create DESC
+   non-inheritable in the first place.  */
+
 int set_cloexec_flag (int desc, bool value);
+
+/* Duplicates a file handle FD, while marking the copy to be closed
+   prior to exec or spawn.  Returns -1 and sets errno if FD could not
+   be duplicated.  */
+
+int dup_cloexec (int fd);

gl/close-hook.c

@@ -0,0 +1,91 @@
+/* Hook for making the close() function extensible.
+   Copyright (C) 2009, 2010 Free Software Foundation, Inc.
+   Written by Bruno Haible <bruno@clisp.org>, 2009.
+
+   This program is free software: you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published
+   by the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+/* Specification.  */
+#include "close-hook.h"
+
+#include <stdlib.h>
+#include <unistd.h>
+
+#undef close
+
+
+/* Currently, this entire code is only needed for the handling of sockets
+   on native Windows platforms.  */
+#if WINDOWS_SOCKETS
+
+/* The first and last link in the doubly linked list.
+   Initially the list is empty.  */
+static struct close_hook anchor = { &anchor, &anchor, NULL };
+
+int
+execute_close_hooks (int fd, const struct close_hook *remaining_list)
+{
+  if (remaining_list == &anchor)
+    /* End of list reached.  */
+    return close (fd);
+  else
+    return remaining_list->private_fn (fd, remaining_list->private_next);
+}
+
+int
+execute_all_close_hooks (int fd)
+{
+  return execute_close_hooks (fd, anchor.private_next);
+}
+
+void
+register_close_hook (close_hook_fn hook, struct close_hook *link)
+{
+  if (link->private_next == NULL && link->private_prev == NULL)
+    {
+      /* Add the link to the doubly linked list.  */
+      link->private_next = anchor.private_next;
+      link->private_prev = &anchor;
+      link->private_fn = hook;
+      anchor.private_next->private_prev = link;
+      anchor.private_next = link;
+    }
+  else
+    {
+      /* The link is already in use.  */
+      if (link->private_fn != hook)
+        abort ();
+    }
+}
+
+void
+unregister_close_hook (struct close_hook *link)
+{
+  struct close_hook *next = link->private_next;
+  struct close_hook *prev = link->private_prev;
+
+  if (next != NULL && prev != NULL)
+    {
+      /* The link is in use.  Remove it from the doubly linked list.  */
+      prev->private_next = next;
+      next->private_prev = prev;
+      /* Clear the link, to mark it unused.  */
+      link->private_next = NULL;
+      link->private_prev = NULL;
+      link->private_fn = NULL;
+    }
+}
+
+#endif

gl/close-hook.h

@@ -0,0 +1,72 @@
+/* Hook for making the close() function extensible.
+   Copyright (C) 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published
+   by the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+
+#ifndef CLOSE_HOOK_H
+#define CLOSE_HOOK_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/* Currently, this entire code is only needed for the handling of sockets
+   on native Windows platforms.  */
+#if WINDOWS_SOCKETS
+
+
+/* An element of the list of close hooks.
+   The fields of this structure are considered private.  */
+struct close_hook
+{
+  /* Doubly linked list.  */
+  struct close_hook *private_next;
+  struct close_hook *private_prev;
+  /* Function that treats the types of FD that it knows about and calls
+     execute_close_hooks (FD, REMAINING_LIST) as a fallback.  */
+  int (*private_fn) (int fd, const struct close_hook *remaining_list);
+};
+
+/* This type of function closes FD, applying special knowledge for the FD
+   types it knows about, and calls execute_close_hooks (FD, REMAINING_LIST)
+   for the other FD types.  */
+typedef int (*close_hook_fn) (int fd, const struct close_hook *remaining_list);
+
+/* Execute the close hooks in REMAINING_LIST.
+   Return 0 or -1, like close() would do.  */
+extern int execute_close_hooks (int fd, const struct close_hook *remaining_list);
+
+/* Execute all close hooks.
+   Return 0 or -1, like close() would do.  */
+extern int execute_all_close_hooks (int fd);
+
+/* Add a function to the list of close hooks.
+   The LINK variable points to a piece of memory which is guaranteed to be
+   accessible until the corresponding call to unregister_close_hook.  */
+extern void register_close_hook (close_hook_fn hook, struct close_hook *link);
+
+/* Removes a function from the list of close hooks.  */
+extern void unregister_close_hook (struct close_hook *link);
+
+
+#endif
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* CLOSE_HOOK_H */

gl/config.charset

@@ -1,7 +1,7 @@
 #! /bin/sh
 # Output a system dependent table of character encoding aliases.
 #
-#   Copyright (C) 2000-2004, 2006-2009 Free Software Foundation, Inc.
+#   Copyright (C) 2000-2004, 2006-2010 Free Software Foundation, Inc.
 #
 #   This program is free software; you can redistribute it and/or modify
 #   it under the terms of the GNU General Public License as published by
@@ -123,561 +123,561 @@ echo "# It was automatically generated from config.charset."
 # List of references, updated during installation:
 echo "# Packages using this file: "
 case "$os" in
-    linux-gnulibc1*)
-	# Linux libc5 doesn't have nl_langinfo(CODESET); therefore
-	# localcharset.c falls back to using the full locale name
-	# from the environment variables.
-	echo "C ASCII"
-	echo "POSIX ASCII"
-	for l in af af_ZA ca ca_ES da da_DK de de_AT de_BE de_CH de_DE de_LU \
-	         en en_AU en_BW en_CA en_DK en_GB en_IE en_NZ en_US en_ZA \
-	         en_ZW es es_AR es_BO es_CL es_CO es_DO es_EC es_ES es_GT \
-	         es_HN es_MX es_PA es_PE es_PY es_SV es_US es_UY es_VE et \
-	         et_EE eu eu_ES fi fi_FI fo fo_FO fr fr_BE fr_CA fr_CH fr_FR \
-	         fr_LU ga ga_IE gl gl_ES id id_ID in in_ID is is_IS it it_CH \
-	         it_IT kl kl_GL nl nl_BE nl_NL no no_NO pt pt_BR pt_PT sv \
-	         sv_FI sv_SE; do
-	  echo "$l ISO-8859-1"
-	  echo "$l.iso-8859-1 ISO-8859-1"
-	  echo "$l.iso-8859-15 ISO-8859-15"
-	  echo "$l.iso-8859-15@euro ISO-8859-15"
-	  echo "$l@euro ISO-8859-15"
-	  echo "$l.cp-437 CP437"
-	  echo "$l.cp-850 CP850"
-	  echo "$l.cp-1252 CP1252"
-	  echo "$l.cp-1252@euro CP1252"
-	  #echo "$l.atari-st ATARI-ST" # not a commonly used encoding
-	  echo "$l.utf-8 UTF-8"
-	  echo "$l.utf-8@euro UTF-8"
-	done
-	for l in cs cs_CZ hr hr_HR hu hu_HU pl pl_PL ro ro_RO sk sk_SK sl \
-	         sl_SI sr sr_CS sr_YU; do
-	  echo "$l ISO-8859-2"
-	  echo "$l.iso-8859-2 ISO-8859-2"
-	  echo "$l.cp-852 CP852"
-	  echo "$l.cp-1250 CP1250"
-	  echo "$l.utf-8 UTF-8"
-	done
-	for l in mk mk_MK ru ru_RU; do
-	  echo "$l ISO-8859-5"
-	  echo "$l.iso-8859-5 ISO-8859-5"
-	  echo "$l.koi8-r KOI8-R"
-	  echo "$l.cp-866 CP866"
-	  echo "$l.cp-1251 CP1251"
-	  echo "$l.utf-8 UTF-8"
-	done
-	for l in ar ar_SA; do
-	  echo "$l ISO-8859-6"
-	  echo "$l.iso-8859-6 ISO-8859-6"
-	  echo "$l.cp-864 CP864"
-	  #echo "$l.cp-868 CP868" # not a commonly used encoding
-	  echo "$l.cp-1256 CP1256"
-	  echo "$l.utf-8 UTF-8"
-	done
-	for l in el el_GR gr gr_GR; do
-	  echo "$l ISO-8859-7"
-	  echo "$l.iso-8859-7 ISO-8859-7"
-	  echo "$l.cp-869 CP869"
-	  echo "$l.cp-1253 CP1253"
-	  echo "$l.cp-1253@euro CP1253"
-	  echo "$l.utf-8 UTF-8"
-	  echo "$l.utf-8@euro UTF-8"
-	done
-	for l in he he_IL iw iw_IL; do
-	  echo "$l ISO-8859-8"
-	  echo "$l.iso-8859-8 ISO-8859-8"
-	  echo "$l.cp-862 CP862"
-	  echo "$l.cp-1255 CP1255"
-	  echo "$l.utf-8 UTF-8"
-	done
-	for l in tr tr_TR; do
-	  echo "$l ISO-8859-9"
-	  echo "$l.iso-8859-9 ISO-8859-9"
-	  echo "$l.cp-857 CP857"
-	  echo "$l.cp-1254 CP1254"
-	  echo "$l.utf-8 UTF-8"
-	done
-	for l in lt lt_LT lv lv_LV; do
-	  #echo "$l BALTIC" # not a commonly used encoding, wrong encoding name
-	  echo "$l ISO-8859-13"
-	done
-	for l in ru_UA uk uk_UA; do
-	  echo "$l KOI8-U"
-	done
-	for l in zh zh_CN; do
-	  #echo "$l GB_2312-80" # not a commonly used encoding, wrong encoding name
-	  echo "$l GB2312"
-	done
-	for l in ja ja_JP ja_JP.EUC; do
-	  echo "$l EUC-JP"
-	done
-	for l in ko ko_KR; do
-	  echo "$l EUC-KR"
-	done
-	for l in th th_TH; do
-	  echo "$l TIS-620"
-	done
-	for l in fa fa_IR; do
-	  #echo "$l ISIRI-3342" # a broken encoding
-	  echo "$l.utf-8 UTF-8"
-	done
-	;;
-    linux* | *-gnu*)
-	# With glibc-2.1 or newer, we don't need any canonicalization,
-	# because glibc has iconv and both glibc and libiconv support all
-	# GNU canonical names directly. Therefore, the Makefile does not
-	# need to install the alias file at all.
-	# The following applies only to glibc-2.0.x and older libcs.
-	echo "ISO_646.IRV:1983 ASCII"
-	;;
-    aix*)
-	echo "ISO8859-1 ISO-8859-1"
-	echo "ISO8859-2 ISO-8859-2"
-	echo "ISO8859-5 ISO-8859-5"
-	echo "ISO8859-6 ISO-8859-6"
-	echo "ISO8859-7 ISO-8859-7"
-	echo "ISO8859-8 ISO-8859-8"
-	echo "ISO8859-9 ISO-8859-9"
-	echo "ISO8859-15 ISO-8859-15"
-	echo "IBM-850 CP850"
-	echo "IBM-856 CP856"
-	echo "IBM-921 ISO-8859-13"
-	echo "IBM-922 CP922"
-	echo "IBM-932 CP932"
-	echo "IBM-943 CP943"
-	echo "IBM-1046 CP1046"
-	echo "IBM-1124 CP1124"
-	echo "IBM-1129 CP1129"
-	echo "IBM-1252 CP1252"
-	echo "IBM-eucCN GB2312"
-	echo "IBM-eucJP EUC-JP"
-	echo "IBM-eucKR EUC-KR"
-	echo "IBM-eucTW EUC-TW"
-	echo "big5 BIG5"
-	echo "GBK GBK"
-	echo "TIS-620 TIS-620"
-	echo "UTF-8 UTF-8"
-	;;
-    hpux*)
-	echo "iso88591 ISO-8859-1"
-	echo "iso88592 ISO-8859-2"
-	echo "iso88595 ISO-8859-5"
-	echo "iso88596 ISO-8859-6"
-	echo "iso88597 ISO-8859-7"
-	echo "iso88598 ISO-8859-8"
-	echo "iso88599 ISO-8859-9"
-	echo "iso885915 ISO-8859-15"
-	echo "roman8 HP-ROMAN8"
-	echo "arabic8 HP-ARABIC8"
-	echo "greek8 HP-GREEK8"
-	echo "hebrew8 HP-HEBREW8"
-	echo "turkish8 HP-TURKISH8"
-	echo "kana8 HP-KANA8"
-	echo "tis620 TIS-620"
-	echo "big5 BIG5"
-	echo "eucJP EUC-JP"
-	echo "eucKR EUC-KR"
-	echo "eucTW EUC-TW"
-	echo "hp15CN GB2312"
-	#echo "ccdc ?" # what is this?
-	echo "SJIS SHIFT_JIS"
-	echo "utf8 UTF-8"
-	;;
-    irix*)
-	echo "ISO8859-1 ISO-8859-1"
-	echo "ISO8859-2 ISO-8859-2"
-	echo "ISO8859-5 ISO-8859-5"
-	echo "ISO8859-7 ISO-8859-7"
-	echo "ISO8859-9 ISO-8859-9"
-	echo "eucCN GB2312"
-	echo "eucJP EUC-JP"
-	echo "eucKR EUC-KR"
-	echo "eucTW EUC-TW"
-	;;
-    osf*)
-	echo "ISO8859-1 ISO-8859-1"
-	echo "ISO8859-2 ISO-8859-2"
-	echo "ISO8859-4 ISO-8859-4"
-	echo "ISO8859-5 ISO-8859-5"
-	echo "ISO8859-7 ISO-8859-7"
-	echo "ISO8859-8 ISO-8859-8"
-	echo "ISO8859-9 ISO-8859-9"
-	echo "ISO8859-15 ISO-8859-15"
-	echo "cp850 CP850"
-	echo "big5 BIG5"
-	echo "dechanyu DEC-HANYU"
-	echo "dechanzi GB2312"
-	echo "deckanji DEC-KANJI"
-	echo "deckorean EUC-KR"
-	echo "eucJP EUC-JP"
-	echo "eucKR EUC-KR"
-	echo "eucTW EUC-TW"
-	echo "GBK GBK"
-	echo "KSC5601 CP949"
-	echo "sdeckanji EUC-JP"
-	echo "SJIS SHIFT_JIS"
-	echo "TACTIS TIS-620"
-	echo "UTF-8 UTF-8"
-	;;
-    solaris*)
-	echo "646 ASCII"
-	echo "ISO8859-1 ISO-8859-1"
-	echo "ISO8859-2 ISO-8859-2"
-	echo "ISO8859-3 ISO-8859-3"
-	echo "ISO8859-4 ISO-8859-4"
-	echo "ISO8859-5 ISO-8859-5"
-	echo "ISO8859-6 ISO-8859-6"
-	echo "ISO8859-7 ISO-8859-7"
-	echo "ISO8859-8 ISO-8859-8"
-	echo "ISO8859-9 ISO-8859-9"
-	echo "ISO8859-15 ISO-8859-15"
-	echo "koi8-r KOI8-R"
-	echo "ansi-1251 CP1251"
-	echo "BIG5 BIG5"
-	echo "Big5-HKSCS BIG5-HKSCS"
-	echo "gb2312 GB2312"
-	echo "GBK GBK"
-	echo "GB18030 GB18030"
-	echo "cns11643 EUC-TW"
-	echo "5601 EUC-KR"
-	echo "ko_KR.johap92 JOHAB"
-	echo "eucJP EUC-JP"
-	echo "PCK SHIFT_JIS"
-	echo "TIS620.2533 TIS-620"
-	#echo "sun_eu_greek ?" # what is this?
-	echo "UTF-8 UTF-8"
-	;;
-    freebsd* | os2*)
-	# FreeBSD 4.2 doesn't have nl_langinfo(CODESET); therefore
-	# localcharset.c falls back to using the full locale name
-	# from the environment variables.
-	# Likewise for OS/2. OS/2 has XFree86 just like FreeBSD. Just
-	# reuse FreeBSD's locale data for OS/2.
-	echo "C ASCII"
-	echo "US-ASCII ASCII"
-	for l in la_LN lt_LN; do
-	  echo "$l.ASCII ASCII"
-	done
-	for l in da_DK de_AT de_CH de_DE en_AU en_CA en_GB en_US es_ES \
-	         fi_FI fr_BE fr_CA fr_CH fr_FR is_IS it_CH it_IT la_LN \
-	         lt_LN nl_BE nl_NL no_NO pt_PT sv_SE; do
-	  echo "$l.ISO_8859-1 ISO-8859-1"
-	  echo "$l.DIS_8859-15 ISO-8859-15"
-	done
-	for l in cs_CZ hr_HR hu_HU la_LN lt_LN pl_PL sl_SI; do
-	  echo "$l.ISO_8859-2 ISO-8859-2"
-	done
-	for l in la_LN lt_LT; do
-	  echo "$l.ISO_8859-4 ISO-8859-4"
-	done
-	for l in ru_RU ru_SU; do
-	  echo "$l.KOI8-R KOI8-R"
-	  echo "$l.ISO_8859-5 ISO-8859-5"
-	  echo "$l.CP866 CP866"
-	done
-	echo "uk_UA.KOI8-U KOI8-U"
-	echo "zh_TW.BIG5 BIG5"
-	echo "zh_TW.Big5 BIG5"
-	echo "zh_CN.EUC GB2312"
-	echo "ja_JP.EUC EUC-JP"
-	echo "ja_JP.SJIS SHIFT_JIS"
-	echo "ja_JP.Shift_JIS SHIFT_JIS"
-	echo "ko_KR.EUC EUC-KR"
-	;;
-    netbsd*)
-	echo "646 ASCII"
-	echo "ISO8859-1 ISO-8859-1"
-	echo "ISO8859-2 ISO-8859-2"
-	echo "ISO8859-4 ISO-8859-4"
-	echo "ISO8859-5 ISO-8859-5"
-	echo "ISO8859-7 ISO-8859-7"
-	echo "ISO8859-13 ISO-8859-13"
-	echo "ISO8859-15 ISO-8859-15"
-	echo "eucCN GB2312"
-	echo "eucJP EUC-JP"
-	echo "eucKR EUC-KR"
-	echo "eucTW EUC-TW"
-	echo "BIG5 BIG5"
-	echo "SJIS SHIFT_JIS"
-	;;
-    openbsd*)
-	echo "646 ASCII"
-	echo "ISO8859-1 ISO-8859-1"
-	echo "ISO8859-2 ISO-8859-2"
-	echo "ISO8859-4 ISO-8859-4"
-	echo "ISO8859-5 ISO-8859-5"
-	echo "ISO8859-7 ISO-8859-7"
-	echo "ISO8859-13 ISO-8859-13"
-	echo "ISO8859-15 ISO-8859-15"
-	;;
-    darwin[56]*)
-	# Darwin 6.8 doesn't have nl_langinfo(CODESET); therefore
-	# localcharset.c falls back to using the full locale name
-	# from the environment variables.
-	echo "C ASCII"
-	for l in en_AU en_CA en_GB en_US la_LN; do
-	  echo "$l.US-ASCII ASCII"
-	done
-	for l in da_DK de_AT de_CH de_DE en_AU en_CA en_GB en_US es_ES \
-	         fi_FI fr_BE fr_CA fr_CH fr_FR is_IS it_CH it_IT nl_BE \
-	         nl_NL no_NO pt_PT sv_SE; do
-	  echo "$l ISO-8859-1"
-	  echo "$l.ISO8859-1 ISO-8859-1"
-	  echo "$l.ISO8859-15 ISO-8859-15"
-	done
-	for l in la_LN; do
-	  echo "$l.ISO8859-1 ISO-8859-1"
-	  echo "$l.ISO8859-15 ISO-8859-15"
-	done
-	for l in cs_CZ hr_HR hu_HU la_LN pl_PL sl_SI; do
-	  echo "$l.ISO8859-2 ISO-8859-2"
-	done
-	for l in la_LN lt_LT; do
-	  echo "$l.ISO8859-4 ISO-8859-4"
-	done
-	for l in ru_RU; do
-	  echo "$l.KOI8-R KOI8-R"
-	  echo "$l.ISO8859-5 ISO-8859-5"
-	  echo "$l.CP866 CP866"
-	done
-	for l in bg_BG; do
-	  echo "$l.CP1251 CP1251"
-	done
-	echo "uk_UA.KOI8-U KOI8-U"
-	echo "zh_TW.BIG5 BIG5"
-	echo "zh_TW.Big5 BIG5"
-	echo "zh_CN.EUC GB2312"
-	echo "ja_JP.EUC EUC-JP"
-	echo "ja_JP.SJIS SHIFT_JIS"
-	echo "ko_KR.EUC EUC-KR"
-	;;
-    darwin*)
-	# Darwin 7.5 has nl_langinfo(CODESET), but sometimes its value is
-	# useless:
-	# - It returns the empty string when LANG is set to a locale of the
-	#   form ll_CC, although ll_CC/LC_CTYPE is a symlink to an UTF-8
-	#   LC_CTYPE file.
-	# - The environment variables LANG, LC_CTYPE, LC_ALL are not set by
-	#   the system; nl_langinfo(CODESET) returns "US-ASCII" in this case.
-	# - The documentation says:
-	#     "... all code that calls BSD system routines should ensure
-	#      that the const *char parameters of these routines are in UTF-8
-	#      encoding. All BSD system functions expect their string
-	#      parameters to be in UTF-8 encoding and nothing else."
-	#   It also says
-	#     "An additional caveat is that string parameters for files,
-	#      paths, and other file-system entities must be in canonical
-	#      UTF-8. In a canonical UTF-8 Unicode string, all decomposable
-	#      characters are decomposed ..."
-	#   but this is not true: You can pass non-decomposed UTF-8 strings
-	#   to file system functions, and it is the OS which will convert
-	#   them to decomposed UTF-8 before accessing the file system.
-	# - The Apple Terminal application displays UTF-8 by default.
-	# - However, other applications are free to use different encodings:
-	#   - xterm uses ISO-8859-1 by default.
-	#   - TextEdit uses MacRoman by default.
-	# We prefer UTF-8 over decomposed UTF-8-MAC because one should
-	# minimize the use of decomposed Unicode. Unfortunately, through the
-	# Darwin file system, decomposed UTF-8 strings are leaked into user
-	# space nevertheless.
-	# Then there are also the locales with encodings other than US-ASCII
-	# and UTF-8. These locales can be occasionally useful to users (e.g.
-	# when grepping through ISO-8859-1 encoded text files), when all their
-	# file names are in US-ASCII.
-	echo "ISO8859-1 ISO-8859-1"
-	echo "ISO8859-2 ISO-8859-2"
-	echo "ISO8859-4 ISO-8859-4"
-	echo "ISO8859-5 ISO-8859-5"
-	echo "ISO8859-7 ISO-8859-7"
-	echo "ISO8859-9 ISO-8859-9"
-	echo "ISO8859-13 ISO-8859-13"
-	echo "ISO8859-15 ISO-8859-15"
-	echo "KOI8-R KOI8-R"
-	echo "KOI8-U KOI8-U"
-	echo "CP866 CP866"
-	echo "CP949 CP949"
-	echo "CP1131 CP1131"
-	echo "CP1251 CP1251"
-	echo "eucCN GB2312"
-	echo "GB2312 GB2312"
-	echo "eucJP EUC-JP"
-	echo "eucKR EUC-KR"
-	echo "Big5 BIG5"
-	echo "Big5HKSCS BIG5-HKSCS"
-	echo "GBK GBK"
-	echo "GB18030 GB18030"
-	echo "SJIS SHIFT_JIS"
-	echo "ARMSCII-8 ARMSCII-8"
-	echo "PT154 PT154"
-	#echo "ISCII-DEV ?"
-	echo "* UTF-8"
-	;;
-    beos* | haiku*)
-	# BeOS and Haiku have a single locale, and it has UTF-8 encoding.
-	echo "* UTF-8"
-	;;
-    msdosdjgpp*)
-	# DJGPP 2.03 doesn't have nl_langinfo(CODESET); therefore
-	# localcharset.c falls back to using the full locale name
-	# from the environment variables.
-	echo "#"
-	echo "# The encodings given here may not all be correct."
-	echo "# If you find that the encoding given for your language and"
-	echo "# country is not the one your DOS machine actually uses, just"
-	echo "# correct it in this file, and send a mail to"
-	echo "# Juan Manuel Guerrero <juan.guerrero@gmx.de>"
-	echo "# and Bruno Haible <bruno@clisp.org>."
-	echo "#"
-	echo "C ASCII"
-	# ISO-8859-1 languages
-	echo "ca CP850"
-	echo "ca_ES CP850"
-	echo "da CP865"    # not CP850 ??
-	echo "da_DK CP865" # not CP850 ??
-	echo "de CP850"
-	echo "de_AT CP850"
-	echo "de_CH CP850"
-	echo "de_DE CP850"
-	echo "en CP850"
-	echo "en_AU CP850" # not CP437 ??
-	echo "en_CA CP850"
-	echo "en_GB CP850"
-	echo "en_NZ CP437"
-	echo "en_US CP437"
-	echo "en_ZA CP850" # not CP437 ??
-	echo "es CP850"
-	echo "es_AR CP850"
-	echo "es_BO CP850"
-	echo "es_CL CP850"
-	echo "es_CO CP850"
-	echo "es_CR CP850"
-	echo "es_CU CP850"
-	echo "es_DO CP850"
-	echo "es_EC CP850"
-	echo "es_ES CP850"
-	echo "es_GT CP850"
-	echo "es_HN CP850"
-	echo "es_MX CP850"
-	echo "es_NI CP850"
-	echo "es_PA CP850"
-	echo "es_PY CP850"
-	echo "es_PE CP850"
-	echo "es_SV CP850"
-	echo "es_UY CP850"
-	echo "es_VE CP850"
-	echo "et CP850"
-	echo "et_EE CP850"
-	echo "eu CP850"
-	echo "eu_ES CP850"
-	echo "fi CP850"
-	echo "fi_FI CP850"
-	echo "fr CP850"
-	echo "fr_BE CP850"
-	echo "fr_CA CP850"
-	echo "fr_CH CP850"
-	echo "fr_FR CP850"
-	echo "ga CP850"
-	echo "ga_IE CP850"
-	echo "gd CP850"
-	echo "gd_GB CP850"
-	echo "gl CP850"
-	echo "gl_ES CP850"
-	echo "id CP850"    # not CP437 ??
-	echo "id_ID CP850" # not CP437 ??
-	echo "is CP861"    # not CP850 ??
-	echo "is_IS CP861" # not CP850 ??
-	echo "it CP850"
-	echo "it_CH CP850"
-	echo "it_IT CP850"
-	echo "lt CP775"
-	echo "lt_LT CP775"
-	echo "lv CP775"
-	echo "lv_LV CP775"
-	echo "nb CP865"    # not CP850 ??
-	echo "nb_NO CP865" # not CP850 ??
-	echo "nl CP850"
-	echo "nl_BE CP850"
-	echo "nl_NL CP850"
-	echo "nn CP865"    # not CP850 ??
-	echo "nn_NO CP865" # not CP850 ??
-	echo "no CP865"    # not CP850 ??
-	echo "no_NO CP865" # not CP850 ??
-	echo "pt CP850"
-	echo "pt_BR CP850"
-	echo "pt_PT CP850"
-	echo "sv CP850"
-	echo "sv_SE CP850"
-	# ISO-8859-2 languages
-	echo "cs CP852"
-	echo "cs_CZ CP852"
-	echo "hr CP852"
-	echo "hr_HR CP852"
-	echo "hu CP852"
-	echo "hu_HU CP852"
-	echo "pl CP852"
-	echo "pl_PL CP852"
-	echo "ro CP852"
-	echo "ro_RO CP852"
-	echo "sk CP852"
-	echo "sk_SK CP852"
-	echo "sl CP852"
-	echo "sl_SI CP852"
-	echo "sq CP852"
-	echo "sq_AL CP852"
-	echo "sr CP852"    # CP852 or CP866 or CP855 ??
-	echo "sr_CS CP852" # CP852 or CP866 or CP855 ??
-	echo "sr_YU CP852" # CP852 or CP866 or CP855 ??
-	# ISO-8859-3 languages
-	echo "mt CP850"
-	echo "mt_MT CP850"
-	# ISO-8859-5 languages
-	echo "be CP866"
-	echo "be_BE CP866"
-	echo "bg CP866"    # not CP855 ??
-	echo "bg_BG CP866" # not CP855 ??
-	echo "mk CP866"    # not CP855 ??
-	echo "mk_MK CP866" # not CP855 ??
-	echo "ru CP866"
-	echo "ru_RU CP866"
-	echo "uk CP1125"
-	echo "uk_UA CP1125"
-	# ISO-8859-6 languages
-	echo "ar CP864"
-	echo "ar_AE CP864"
-	echo "ar_DZ CP864"
-	echo "ar_EG CP864"
-	echo "ar_IQ CP864"
-	echo "ar_IR CP864"
-	echo "ar_JO CP864"
-	echo "ar_KW CP864"
-	echo "ar_MA CP864"
-	echo "ar_OM CP864"
-	echo "ar_QA CP864"
-	echo "ar_SA CP864"
-	echo "ar_SY CP864"
-	# ISO-8859-7 languages
-	echo "el CP869"
-	echo "el_GR CP869"
-	# ISO-8859-8 languages
-	echo "he CP862"
-	echo "he_IL CP862"
-	# ISO-8859-9 languages
-	echo "tr CP857"
-	echo "tr_TR CP857"
-	# Japanese
-	echo "ja CP932"
-	echo "ja_JP CP932"
-	# Chinese
-	echo "zh_CN GBK"
-	echo "zh_TW CP950" # not CP938 ??
-	# Korean
-	echo "kr CP949"    # not CP934 ??
-	echo "kr_KR CP949" # not CP934 ??
-	# Thai
-	echo "th CP874"
-	echo "th_TH CP874"
-	# Other
-	echo "eo CP850"
-	echo "eo_EO CP850"
-	;;
+  linux-gnulibc1*)
+    # Linux libc5 doesn't have nl_langinfo(CODESET); therefore
+    # localcharset.c falls back to using the full locale name
+    # from the environment variables.
+    echo "C ASCII"
+    echo "POSIX ASCII"
+    for l in af af_ZA ca ca_ES da da_DK de de_AT de_BE de_CH de_DE de_LU \
+             en en_AU en_BW en_CA en_DK en_GB en_IE en_NZ en_US en_ZA \
+             en_ZW es es_AR es_BO es_CL es_CO es_DO es_EC es_ES es_GT \
+             es_HN es_MX es_PA es_PE es_PY es_SV es_US es_UY es_VE et \
+             et_EE eu eu_ES fi fi_FI fo fo_FO fr fr_BE fr_CA fr_CH fr_FR \
+             fr_LU ga ga_IE gl gl_ES id id_ID in in_ID is is_IS it it_CH \
+             it_IT kl kl_GL nl nl_BE nl_NL no no_NO pt pt_BR pt_PT sv \
+             sv_FI sv_SE; do
+      echo "$l ISO-8859-1"
+      echo "$l.iso-8859-1 ISO-8859-1"
+      echo "$l.iso-8859-15 ISO-8859-15"
+      echo "$l.iso-8859-15@euro ISO-8859-15"
+      echo "$l@euro ISO-8859-15"
+      echo "$l.cp-437 CP437"
+      echo "$l.cp-850 CP850"
+      echo "$l.cp-1252 CP1252"
+      echo "$l.cp-1252@euro CP1252"
+      #echo "$l.atari-st ATARI-ST" # not a commonly used encoding
+      echo "$l.utf-8 UTF-8"
+      echo "$l.utf-8@euro UTF-8"
+    done
+    for l in cs cs_CZ hr hr_HR hu hu_HU pl pl_PL ro ro_RO sk sk_SK sl \
+             sl_SI sr sr_CS sr_YU; do
+      echo "$l ISO-8859-2"
+      echo "$l.iso-8859-2 ISO-8859-2"
+      echo "$l.cp-852 CP852"
+      echo "$l.cp-1250 CP1250"
+      echo "$l.utf-8 UTF-8"
+    done
+    for l in mk mk_MK ru ru_RU; do
+      echo "$l ISO-8859-5"
+      echo "$l.iso-8859-5 ISO-8859-5"
+      echo "$l.koi8-r KOI8-R"
+      echo "$l.cp-866 CP866"
+      echo "$l.cp-1251 CP1251"
+      echo "$l.utf-8 UTF-8"
+    done
+    for l in ar ar_SA; do
+      echo "$l ISO-8859-6"
+      echo "$l.iso-8859-6 ISO-8859-6"
+      echo "$l.cp-864 CP864"
+      #echo "$l.cp-868 CP868" # not a commonly used encoding
+      echo "$l.cp-1256 CP1256"
+      echo "$l.utf-8 UTF-8"
+    done
+    for l in el el_GR gr gr_GR; do
+      echo "$l ISO-8859-7"
+      echo "$l.iso-8859-7 ISO-8859-7"
+      echo "$l.cp-869 CP869"
+      echo "$l.cp-1253 CP1253"
+      echo "$l.cp-1253@euro CP1253"
+      echo "$l.utf-8 UTF-8"
+      echo "$l.utf-8@euro UTF-8"
+    done
+    for l in he he_IL iw iw_IL; do
+      echo "$l ISO-8859-8"
+      echo "$l.iso-8859-8 ISO-8859-8"
+      echo "$l.cp-862 CP862"
+      echo "$l.cp-1255 CP1255"
+      echo "$l.utf-8 UTF-8"
+    done
+    for l in tr tr_TR; do
+      echo "$l ISO-8859-9"
+      echo "$l.iso-8859-9 ISO-8859-9"
+      echo "$l.cp-857 CP857"
+      echo "$l.cp-1254 CP1254"
+      echo "$l.utf-8 UTF-8"
+    done
+    for l in lt lt_LT lv lv_LV; do
+      #echo "$l BALTIC" # not a commonly used encoding, wrong encoding name
+      echo "$l ISO-8859-13"
+    done
+    for l in ru_UA uk uk_UA; do
+      echo "$l KOI8-U"
+    done
+    for l in zh zh_CN; do
+      #echo "$l GB_2312-80" # not a commonly used encoding, wrong encoding name
+      echo "$l GB2312"
+    done
+    for l in ja ja_JP ja_JP.EUC; do
+      echo "$l EUC-JP"
+    done
+    for l in ko ko_KR; do
+      echo "$l EUC-KR"
+    done
+    for l in th th_TH; do
+      echo "$l TIS-620"
+    done
+    for l in fa fa_IR; do
+      #echo "$l ISIRI-3342" # a broken encoding
+      echo "$l.utf-8 UTF-8"
+    done
+    ;;
+  linux* | *-gnu*)
+    # With glibc-2.1 or newer, we don't need any canonicalization,
+    # because glibc has iconv and both glibc and libiconv support all
+    # GNU canonical names directly. Therefore, the Makefile does not
+    # need to install the alias file at all.
+    # The following applies only to glibc-2.0.x and older libcs.
+    echo "ISO_646.IRV:1983 ASCII"
+    ;;
+  aix*)
+    echo "ISO8859-1 ISO-8859-1"
+    echo "ISO8859-2 ISO-8859-2"
+    echo "ISO8859-5 ISO-8859-5"
+    echo "ISO8859-6 ISO-8859-6"
+    echo "ISO8859-7 ISO-8859-7"
+    echo "ISO8859-8 ISO-8859-8"
+    echo "ISO8859-9 ISO-8859-9"
+    echo "ISO8859-15 ISO-8859-15"
+    echo "IBM-850 CP850"
+    echo "IBM-856 CP856"
+    echo "IBM-921 ISO-8859-13"
+    echo "IBM-922 CP922"
+    echo "IBM-932 CP932"
+    echo "IBM-943 CP943"
+    echo "IBM-1046 CP1046"
+    echo "IBM-1124 CP1124"
+    echo "IBM-1129 CP1129"
+    echo "IBM-1252 CP1252"
+    echo "IBM-eucCN GB2312"
+    echo "IBM-eucJP EUC-JP"
+    echo "IBM-eucKR EUC-KR"
+    echo "IBM-eucTW EUC-TW"
+    echo "big5 BIG5"
+    echo "GBK GBK"
+    echo "TIS-620 TIS-620"
+    echo "UTF-8 UTF-8"
+    ;;
+  hpux*)
+    echo "iso88591 ISO-8859-1"
+    echo "iso88592 ISO-8859-2"
+    echo "iso88595 ISO-8859-5"
+    echo "iso88596 ISO-8859-6"
+    echo "iso88597 ISO-8859-7"
+    echo "iso88598 ISO-8859-8"
+    echo "iso88599 ISO-8859-9"
+    echo "iso885915 ISO-8859-15"
+    echo "roman8 HP-ROMAN8"
+    echo "arabic8 HP-ARABIC8"
+    echo "greek8 HP-GREEK8"
+    echo "hebrew8 HP-HEBREW8"
+    echo "turkish8 HP-TURKISH8"
+    echo "kana8 HP-KANA8"
+    echo "tis620 TIS-620"
+    echo "big5 BIG5"
+    echo "eucJP EUC-JP"
+    echo "eucKR EUC-KR"
+    echo "eucTW EUC-TW"
+    echo "hp15CN GB2312"
+    #echo "ccdc ?" # what is this?
+    echo "SJIS SHIFT_JIS"
+    echo "utf8 UTF-8"
+    ;;
+  irix*)
+    echo "ISO8859-1 ISO-8859-1"
+    echo "ISO8859-2 ISO-8859-2"
+    echo "ISO8859-5 ISO-8859-5"
+    echo "ISO8859-7 ISO-8859-7"
+    echo "ISO8859-9 ISO-8859-9"
+    echo "eucCN GB2312"
+    echo "eucJP EUC-JP"
+    echo "eucKR EUC-KR"
+    echo "eucTW EUC-TW"
+    ;;
+  osf*)
+    echo "ISO8859-1 ISO-8859-1"
+    echo "ISO8859-2 ISO-8859-2"
+    echo "ISO8859-4 ISO-8859-4"
+    echo "ISO8859-5 ISO-8859-5"
+    echo "ISO8859-7 ISO-8859-7"
+    echo "ISO8859-8 ISO-8859-8"
+    echo "ISO8859-9 ISO-8859-9"
+    echo "ISO8859-15 ISO-8859-15"
+    echo "cp850 CP850"
+    echo "big5 BIG5"
+    echo "dechanyu DEC-HANYU"
+    echo "dechanzi GB2312"
+    echo "deckanji DEC-KANJI"
+    echo "deckorean EUC-KR"
+    echo "eucJP EUC-JP"
+    echo "eucKR EUC-KR"
+    echo "eucTW EUC-TW"
+    echo "GBK GBK"
+    echo "KSC5601 CP949"
+    echo "sdeckanji EUC-JP"
+    echo "SJIS SHIFT_JIS"
+    echo "TACTIS TIS-620"
+    echo "UTF-8 UTF-8"
+    ;;
+  solaris*)
+    echo "646 ASCII"
+    echo "ISO8859-1 ISO-8859-1"
+    echo "ISO8859-2 ISO-8859-2"
+    echo "ISO8859-3 ISO-8859-3"
+    echo "ISO8859-4 ISO-8859-4"
+    echo "ISO8859-5 ISO-8859-5"
+    echo "ISO8859-6 ISO-8859-6"
+    echo "ISO8859-7 ISO-8859-7"
+    echo "ISO8859-8 ISO-8859-8"
+    echo "ISO8859-9 ISO-8859-9"
+    echo "ISO8859-15 ISO-8859-15"
+    echo "koi8-r KOI8-R"
+    echo "ansi-1251 CP1251"
+    echo "BIG5 BIG5"
+    echo "Big5-HKSCS BIG5-HKSCS"
+    echo "gb2312 GB2312"
+    echo "GBK GBK"
+    echo "GB18030 GB18030"
+    echo "cns11643 EUC-TW"
+    echo "5601 EUC-KR"
+    echo "ko_KR.johap92 JOHAB"
+    echo "eucJP EUC-JP"
+    echo "PCK SHIFT_JIS"
+    echo "TIS620.2533 TIS-620"
+    #echo "sun_eu_greek ?" # what is this?
+    echo "UTF-8 UTF-8"
+    ;;
+  freebsd* | os2*)
+    # FreeBSD 4.2 doesn't have nl_langinfo(CODESET); therefore
+    # localcharset.c falls back to using the full locale name
+    # from the environment variables.
+    # Likewise for OS/2. OS/2 has XFree86 just like FreeBSD. Just
+    # reuse FreeBSD's locale data for OS/2.
+    echo "C ASCII"
+    echo "US-ASCII ASCII"
+    for l in la_LN lt_LN; do
+      echo "$l.ASCII ASCII"
+    done
+    for l in da_DK de_AT de_CH de_DE en_AU en_CA en_GB en_US es_ES \
+             fi_FI fr_BE fr_CA fr_CH fr_FR is_IS it_CH it_IT la_LN \
+             lt_LN nl_BE nl_NL no_NO pt_PT sv_SE; do
+      echo "$l.ISO_8859-1 ISO-8859-1"
+      echo "$l.DIS_8859-15 ISO-8859-15"
+    done
+    for l in cs_CZ hr_HR hu_HU la_LN lt_LN pl_PL sl_SI; do
+      echo "$l.ISO_8859-2 ISO-8859-2"
+    done
+    for l in la_LN lt_LT; do
+      echo "$l.ISO_8859-4 ISO-8859-4"
+    done
+    for l in ru_RU ru_SU; do
+      echo "$l.KOI8-R KOI8-R"
+      echo "$l.ISO_8859-5 ISO-8859-5"
+      echo "$l.CP866 CP866"
+    done
+    echo "uk_UA.KOI8-U KOI8-U"
+    echo "zh_TW.BIG5 BIG5"
+    echo "zh_TW.Big5 BIG5"
+    echo "zh_CN.EUC GB2312"
+    echo "ja_JP.EUC EUC-JP"
+    echo "ja_JP.SJIS SHIFT_JIS"
+    echo "ja_JP.Shift_JIS SHIFT_JIS"
+    echo "ko_KR.EUC EUC-KR"
+    ;;
+  netbsd*)
+    echo "646 ASCII"
+    echo "ISO8859-1 ISO-8859-1"
+    echo "ISO8859-2 ISO-8859-2"
+    echo "ISO8859-4 ISO-8859-4"
+    echo "ISO8859-5 ISO-8859-5"
+    echo "ISO8859-7 ISO-8859-7"
+    echo "ISO8859-13 ISO-8859-13"
+    echo "ISO8859-15 ISO-8859-15"
+    echo "eucCN GB2312"
+    echo "eucJP EUC-JP"
+    echo "eucKR EUC-KR"
+    echo "eucTW EUC-TW"
+    echo "BIG5 BIG5"
+    echo "SJIS SHIFT_JIS"
+    ;;
+  openbsd*)
+    echo "646 ASCII"
+    echo "ISO8859-1 ISO-8859-1"
+    echo "ISO8859-2 ISO-8859-2"
+    echo "ISO8859-4 ISO-8859-4"
+    echo "ISO8859-5 ISO-8859-5"
+    echo "ISO8859-7 ISO-8859-7"
+    echo "ISO8859-13 ISO-8859-13"
+    echo "ISO8859-15 ISO-8859-15"
+    ;;
+  darwin[56]*)
+    # Darwin 6.8 doesn't have nl_langinfo(CODESET); therefore
+    # localcharset.c falls back to using the full locale name
+    # from the environment variables.
+    echo "C ASCII"
+    for l in en_AU en_CA en_GB en_US la_LN; do
+      echo "$l.US-ASCII ASCII"
+    done
+    for l in da_DK de_AT de_CH de_DE en_AU en_CA en_GB en_US es_ES \
+             fi_FI fr_BE fr_CA fr_CH fr_FR is_IS it_CH it_IT nl_BE \
+             nl_NL no_NO pt_PT sv_SE; do
+      echo "$l ISO-8859-1"
+      echo "$l.ISO8859-1 ISO-8859-1"
+      echo "$l.ISO8859-15 ISO-8859-15"
+    done
+    for l in la_LN; do
+      echo "$l.ISO8859-1 ISO-8859-1"
+      echo "$l.ISO8859-15 ISO-8859-15"
+    done
+    for l in cs_CZ hr_HR hu_HU la_LN pl_PL sl_SI; do
+      echo "$l.ISO8859-2 ISO-8859-2"
+    done
+    for l in la_LN lt_LT; do
+      echo "$l.ISO8859-4 ISO-8859-4"
+    done
+    for l in ru_RU; do
+      echo "$l.KOI8-R KOI8-R"
+      echo "$l.ISO8859-5 ISO-8859-5"
+      echo "$l.CP866 CP866"
+    done
+    for l in bg_BG; do
+      echo "$l.CP1251 CP1251"
+    done
+    echo "uk_UA.KOI8-U KOI8-U"
+    echo "zh_TW.BIG5 BIG5"
+    echo "zh_TW.Big5 BIG5"
+    echo "zh_CN.EUC GB2312"
+    echo "ja_JP.EUC EUC-JP"
+    echo "ja_JP.SJIS SHIFT_JIS"
+    echo "ko_KR.EUC EUC-KR"
+    ;;
+  darwin*)
+    # Darwin 7.5 has nl_langinfo(CODESET), but sometimes its value is
+    # useless:
+    # - It returns the empty string when LANG is set to a locale of the
+    #   form ll_CC, although ll_CC/LC_CTYPE is a symlink to an UTF-8
+    #   LC_CTYPE file.
+    # - The environment variables LANG, LC_CTYPE, LC_ALL are not set by
+    #   the system; nl_langinfo(CODESET) returns "US-ASCII" in this case.
+    # - The documentation says:
+    #     "... all code that calls BSD system routines should ensure
+    #      that the const *char parameters of these routines are in UTF-8
+    #      encoding. All BSD system functions expect their string
+    #      parameters to be in UTF-8 encoding and nothing else."
+    #   It also says
+    #     "An additional caveat is that string parameters for files,
+    #      paths, and other file-system entities must be in canonical
+    #      UTF-8. In a canonical UTF-8 Unicode string, all decomposable
+    #      characters are decomposed ..."
+    #   but this is not true: You can pass non-decomposed UTF-8 strings
+    #   to file system functions, and it is the OS which will convert
+    #   them to decomposed UTF-8 before accessing the file system.
+    # - The Apple Terminal application displays UTF-8 by default.
+    # - However, other applications are free to use different encodings:
+    #   - xterm uses ISO-8859-1 by default.
+    #   - TextEdit uses MacRoman by default.
+    # We prefer UTF-8 over decomposed UTF-8-MAC because one should
+    # minimize the use of decomposed Unicode. Unfortunately, through the
+    # Darwin file system, decomposed UTF-8 strings are leaked into user
+    # space nevertheless.
+    # Then there are also the locales with encodings other than US-ASCII
+    # and UTF-8. These locales can be occasionally useful to users (e.g.
+    # when grepping through ISO-8859-1 encoded text files), when all their
+    # file names are in US-ASCII.
+    echo "ISO8859-1 ISO-8859-1"
+    echo "ISO8859-2 ISO-8859-2"
+    echo "ISO8859-4 ISO-8859-4"
+    echo "ISO8859-5 ISO-8859-5"
+    echo "ISO8859-7 ISO-8859-7"
+    echo "ISO8859-9 ISO-8859-9"
+    echo "ISO8859-13 ISO-8859-13"
+    echo "ISO8859-15 ISO-8859-15"
+    echo "KOI8-R KOI8-R"
+    echo "KOI8-U KOI8-U"
+    echo "CP866 CP866"
+    echo "CP949 CP949"
+    echo "CP1131 CP1131"
+    echo "CP1251 CP1251"
+    echo "eucCN GB2312"
+    echo "GB2312 GB2312"
+    echo "eucJP EUC-JP"
+    echo "eucKR EUC-KR"
+    echo "Big5 BIG5"
+    echo "Big5HKSCS BIG5-HKSCS"
+    echo "GBK GBK"
+    echo "GB18030 GB18030"
+    echo "SJIS SHIFT_JIS"
+    echo "ARMSCII-8 ARMSCII-8"
+    echo "PT154 PT154"
+    #echo "ISCII-DEV ?"
+    echo "* UTF-8"
+    ;;
+  beos* | haiku*)
+    # BeOS and Haiku have a single locale, and it has UTF-8 encoding.
+    echo "* UTF-8"
+    ;;
+  msdosdjgpp*)
+    # DJGPP 2.03 doesn't have nl_langinfo(CODESET); therefore
+    # localcharset.c falls back to using the full locale name
+    # from the environment variables.
+    echo "#"
+    echo "# The encodings given here may not all be correct."
+    echo "# If you find that the encoding given for your language and"
+    echo "# country is not the one your DOS machine actually uses, just"
+    echo "# correct it in this file, and send a mail to"
+    echo "# Juan Manuel Guerrero <juan.guerrero@gmx.de>"
+    echo "# and Bruno Haible <bruno@clisp.org>."
+    echo "#"
+    echo "C ASCII"
+    # ISO-8859-1 languages
+    echo "ca CP850"
+    echo "ca_ES CP850"
+    echo "da CP865"    # not CP850 ??
+    echo "da_DK CP865" # not CP850 ??
+    echo "de CP850"
+    echo "de_AT CP850"
+    echo "de_CH CP850"
+    echo "de_DE CP850"
+    echo "en CP850"
+    echo "en_AU CP850" # not CP437 ??
+    echo "en_CA CP850"
+    echo "en_GB CP850"
+    echo "en_NZ CP437"
+    echo "en_US CP437"
+    echo "en_ZA CP850" # not CP437 ??
+    echo "es CP850"
+    echo "es_AR CP850"
+    echo "es_BO CP850"
+    echo "es_CL CP850"
+    echo "es_CO CP850"
+    echo "es_CR CP850"
+    echo "es_CU CP850"
+    echo "es_DO CP850"
+    echo "es_EC CP850"
+    echo "es_ES CP850"
+    echo "es_GT CP850"
+    echo "es_HN CP850"
+    echo "es_MX CP850"
+    echo "es_NI CP850"
+    echo "es_PA CP850"
+    echo "es_PY CP850"
+    echo "es_PE CP850"
+    echo "es_SV CP850"
+    echo "es_UY CP850"
+    echo "es_VE CP850"
+    echo "et CP850"
+    echo "et_EE CP850"
+    echo "eu CP850"
+    echo "eu_ES CP850"
+    echo "fi CP850"
+    echo "fi_FI CP850"
+    echo "fr CP850"
+    echo "fr_BE CP850"
+    echo "fr_CA CP850"
+    echo "fr_CH CP850"
+    echo "fr_FR CP850"
+    echo "ga CP850"
+    echo "ga_IE CP850"
+    echo "gd CP850"
+    echo "gd_GB CP850"
+    echo "gl CP850"
+    echo "gl_ES CP850"
+    echo "id CP850"    # not CP437 ??
+    echo "id_ID CP850" # not CP437 ??
+    echo "is CP861"    # not CP850 ??
+    echo "is_IS CP861" # not CP850 ??
+    echo "it CP850"
+    echo "it_CH CP850"
+    echo "it_IT CP850"
+    echo "lt CP775"
+    echo "lt_LT CP775"
+    echo "lv CP775"
+    echo "lv_LV CP775"
+    echo "nb CP865"    # not CP850 ??
+    echo "nb_NO CP865" # not CP850 ??
+    echo "nl CP850"
+    echo "nl_BE CP850"
+    echo "nl_NL CP850"
+    echo "nn CP865"    # not CP850 ??
+    echo "nn_NO CP865" # not CP850 ??
+    echo "no CP865"    # not CP850 ??
+    echo "no_NO CP865" # not CP850 ??
+    echo "pt CP850"
+    echo "pt_BR CP850"
+    echo "pt_PT CP850"
+    echo "sv CP850"
+    echo "sv_SE CP850"
+    # ISO-8859-2 languages
+    echo "cs CP852"
+    echo "cs_CZ CP852"
+    echo "hr CP852"
+    echo "hr_HR CP852"
+    echo "hu CP852"
+    echo "hu_HU CP852"
+    echo "pl CP852"
+    echo "pl_PL CP852"
+    echo "ro CP852"
+    echo "ro_RO CP852"
+    echo "sk CP852"
+    echo "sk_SK CP852"
+    echo "sl CP852"
+    echo "sl_SI CP852"
+    echo "sq CP852"
+    echo "sq_AL CP852"
+    echo "sr CP852"    # CP852 or CP866 or CP855 ??
+    echo "sr_CS CP852" # CP852 or CP866 or CP855 ??
+    echo "sr_YU CP852" # CP852 or CP866 or CP855 ??
+    # ISO-8859-3 languages
+    echo "mt CP850"
+    echo "mt_MT CP850"
+    # ISO-8859-5 languages
+    echo "be CP866"
+    echo "be_BE CP866"
+    echo "bg CP866"    # not CP855 ??
+    echo "bg_BG CP866" # not CP855 ??
+    echo "mk CP866"    # not CP855 ??
+    echo "mk_MK CP866" # not CP855 ??
+    echo "ru CP866"
+    echo "ru_RU CP866"
+    echo "uk CP1125"
+    echo "uk_UA CP1125"
+    # ISO-8859-6 languages
+    echo "ar CP864"
+    echo "ar_AE CP864"
+    echo "ar_DZ CP864"
+    echo "ar_EG CP864"
+    echo "ar_IQ CP864"
+    echo "ar_IR CP864"
+    echo "ar_JO CP864"
+    echo "ar_KW CP864"
+    echo "ar_MA CP864"
+    echo "ar_OM CP864"
+    echo "ar_QA CP864"
+    echo "ar_SA CP864"
+    echo "ar_SY CP864"
+    # ISO-8859-7 languages
+    echo "el CP869"
+    echo "el_GR CP869"
+    # ISO-8859-8 languages
+    echo "he CP862"
+    echo "he_IL CP862"
+    # ISO-8859-9 languages
+    echo "tr CP857"
+    echo "tr_TR CP857"
+    # Japanese
+    echo "ja CP932"
+    echo "ja_JP CP932"
+    # Chinese
+    echo "zh_CN GBK"
+    echo "zh_TW CP950" # not CP938 ??
+    # Korean
+    echo "kr CP949"    # not CP934 ??
+    echo "kr_KR CP949" # not CP934 ??
+    # Thai
+    echo "th CP874"
+    echo "th_TH CP874"
+    # Other
+    echo "eo CP850"
+    echo "eo_EO CP850"
+    ;;
 esac

gl/creat-safer.c

@@ -1,6 +1,6 @@
 /* Invoke creat, but avoid some glitches.
 
-   Copyright (C) 2005, 2006 Free Software Foundation, Inc.
+   Copyright (C) 2005-2006, 2009-2010 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by

gl/dirname-lgpl.c

@@ -0,0 +1,86 @@
+/* dirname.c -- return all but the last element in a file name
+
+   Copyright (C) 1990, 1998, 2000-2001, 2003-2006, 2009-2010 Free Software
+   Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+#include "dirname.h"
+
+#include <stdlib.h>
+#include <string.h>
+
+/* Return the length of the prefix of FILE that will be used by
+   dir_name.  If FILE is in the working directory, this returns zero
+   even though `dir_name (FILE)' will return ".".  Works properly even
+   if there are trailing slashes (by effectively ignoring them).  */
+
+size_t
+dir_len (char const *file)
+{
+  size_t prefix_length = FILE_SYSTEM_PREFIX_LEN (file);
+  size_t length;
+
+  /* Advance prefix_length beyond important leading slashes.  */
+  prefix_length += (prefix_length != 0
+                    ? (FILE_SYSTEM_DRIVE_PREFIX_CAN_BE_RELATIVE
+                       && ISSLASH (file[prefix_length]))
+                    : (ISSLASH (file[0])
+                       ? ((DOUBLE_SLASH_IS_DISTINCT_ROOT
+                           && ISSLASH (file[1]) && ! ISSLASH (file[2])
+                           ? 2 : 1))
+                       : 0));
+
+  /* Strip the basename and any redundant slashes before it.  */
+  for (length = last_component (file) - file;
+       prefix_length < length; length--)
+    if (! ISSLASH (file[length - 1]))
+      break;
+  return length;
+}
+
+
+/* In general, we can't use the builtin `dirname' function if available,
+   since it has different meanings in different environments.
+   In some environments the builtin `dirname' modifies its argument.
+
+   Return the leading directories part of FILE, allocated with malloc.
+   Works properly even if there are trailing slashes (by effectively
+   ignoring them).  Return NULL on failure.
+
+   If lstat (FILE) would succeed, then { chdir (dir_name (FILE));
+   lstat (base_name (FILE)); } will access the same file.  Likewise,
+   if the sequence { chdir (dir_name (FILE));
+   rename (base_name (FILE), "foo"); } succeeds, you have renamed FILE
+   to "foo" in the same directory FILE was in.  */
+
+char *
+mdir_name (char const *file)
+{
+  size_t length = dir_len (file);
+  bool append_dot = (length == 0
+                     || (FILE_SYSTEM_DRIVE_PREFIX_CAN_BE_RELATIVE
+                         && length == FILE_SYSTEM_PREFIX_LEN (file)
+                         && file[2] != '\0' && ! ISSLASH (file[2])));
+  char *dir = malloc (length + append_dot + 1);
+  if (!dir)
+    return NULL;
+  memcpy (dir, file, length);
+  if (append_dot)
+    dir[length++] = '.';
+  dir[length] = '\0';
+  return dir;
+}

gl/dirname.c

@@ -1,6 +1,6 @@
 /* dirname.c -- return all but the last element in a file name
 
-   Copyright (C) 1990, 1998, 2000, 2001, 2003, 2004, 2005, 2006 Free Software
+   Copyright (C) 1990, 1998, 2000-2001, 2003-2006, 2009-2010 Free Software
    Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
@@ -20,65 +20,19 @@
 
 #include "dirname.h"
 
+#include <stdlib.h>
 #include <string.h>
 #include "xalloc.h"
 
-/* Return the length of the prefix of FILE that will be used by
-   dir_name.  If FILE is in the working directory, this returns zero
-   even though `dir_name (FILE)' will return ".".  Works properly even
-   if there are trailing slashes (by effectively ignoring them).  */
-
-size_t
-dir_len (char const *file)
-{
-  size_t prefix_length = FILE_SYSTEM_PREFIX_LEN (file);
-  size_t length;
-
-  /* Advance prefix_length beyond important leading slashes.  */
-  prefix_length += (prefix_length != 0
-		    ? (FILE_SYSTEM_DRIVE_PREFIX_CAN_BE_RELATIVE
-		       && ISSLASH (file[prefix_length]))
-		    : (ISSLASH (file[0])
-		       ? ((DOUBLE_SLASH_IS_DISTINCT_ROOT
-			   && ISSLASH (file[1]) && ! ISSLASH (file[2])
-			   ? 2 : 1))
-		       : 0));
-
-  /* Strip the basename and any redundant slashes before it.  */
-  for (length = last_component (file) - file;
-       prefix_length < length; length--)
-    if (! ISSLASH (file[length - 1]))
-      break;
-  return length;
-}
-
-
-/* In general, we can't use the builtin `dirname' function if available,
-   since it has different meanings in different environments.
-   In some environments the builtin `dirname' modifies its argument.
-
-   Return the leading directories part of FILE, allocated with xmalloc.
-   Works properly even if there are trailing slashes (by effectively
-   ignoring them).  Unlike POSIX dirname(), FILE cannot be NULL.
-
-   If lstat (FILE) would succeed, then { chdir (dir_name (FILE));
-   lstat (base_name (FILE)); } will access the same file.  Likewise,
-   if the sequence { chdir (dir_name (FILE));
-   rename (base_name (FILE), "foo"); } succeeds, you have renamed FILE
-   to "foo" in the same directory FILE was in.  */
+/* Just like mdir_name (dirname-lgpl.c), except, rather than
+   returning NULL upon malloc failure, here, we report the
+   "memory exhausted" condition and exit.  */
 
 char *
 dir_name (char const *file)
 {
-  size_t length = dir_len (file);
-  bool append_dot = (length == 0
-		     || (FILE_SYSTEM_DRIVE_PREFIX_CAN_BE_RELATIVE
-			 && length == FILE_SYSTEM_PREFIX_LEN (file)
-			 && file[2] != '\0' && ! ISSLASH (file[2])));
-  char *dir = xmalloc (length + append_dot + 1);
-  memcpy (dir, file, length);
-  if (append_dot)
-    dir[length++] = '.';
-  dir[length] = '\0';
-  return dir;
+  char *result = mdir_name (file);
+  if (!result)
+    xalloc_die ();
+  return result;
 }

gl/dirname.h

@@ -1,6 +1,7 @@
 /*  Take file names apart into directory and base names.
 
-    Copyright (C) 1998, 2001, 2003-2006 Free Software Foundation, Inc.
+    Copyright (C) 1998, 2001, 2003-2006, 2009-2010 Free Software Foundation,
+    Inc.
 
     This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -34,9 +35,9 @@
     /* This internal macro assumes ASCII, but all hosts that support drive
        letters use ASCII.  */
 #   define _IS_DRIVE_LETTER(c) (((unsigned int) (c) | ('a' - 'A')) - 'a' \
-				<= 'z' - 'a')
+                                <= 'z' - 'a')
 #   define FILE_SYSTEM_PREFIX_LEN(Filename) \
-	   (_IS_DRIVE_LETTER ((Filename)[0]) && (Filename)[1] == ':' ? 2 : 0)
+           (_IS_DRIVE_LETTER ((Filename)[0]) && (Filename)[1] == ':' ? 2 : 0)
 #  else
 #   define FILE_SYSTEM_PREFIX_LEN(Filename) 0
 #  endif
@@ -54,12 +55,16 @@
 #  define IS_ABSOLUTE_FILE_NAME(F) ISSLASH ((F)[FILE_SYSTEM_PREFIX_LEN (F)])
 # else
 #  define IS_ABSOLUTE_FILE_NAME(F) \
-	  (ISSLASH ((F)[0]) || 0 < FILE_SYSTEM_PREFIX_LEN (F))
+          (ISSLASH ((F)[0]) || 0 < FILE_SYSTEM_PREFIX_LEN (F))
 # endif
 # define IS_RELATIVE_FILE_NAME(F) (! IS_ABSOLUTE_FILE_NAME (F))
 
+# if GNULIB_DIRNAME
 char *base_name (char const *file);
 char *dir_name (char const *file);
+# endif
+
+char *mdir_name (char const *file);
 size_t base_len (char const *file);
 size_t dir_len (char const *file);
 char *last_component (char const *file);

gl/dup-safer.c

@@ -1,7 +1,6 @@
 /* Invoke dup, but avoid some glitches.
 
-   Copyright (C) 2001, 2004, 2005, 2006, 2009 Free Software
-   Foundation, Inc.
+   Copyright (C) 2001, 2004-2006, 2009-2010 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -23,7 +22,6 @@
 #include "unistd-safer.h"
 
 #include <fcntl.h>
-
 #include <unistd.h>
 
 /* Like dup, but do not return STDIN_FILENO, STDOUT_FILENO, or
@@ -32,11 +30,5 @@
 int
 dup_safer (int fd)
 {
-#if defined F_DUPFD && !defined FCHDIR_REPLACEMENT
   return fcntl (fd, F_DUPFD, STDERR_FILENO + 1);
-#else
-  /* fd_safer calls us back, but eventually the recursion unwinds and
-     does the right thing.  */
-  return fd_safer (dup (fd));
-#endif
 }

gl/dup2.c

@@ -0,0 +1,128 @@
+/* Duplicate an open file descriptor to a specified file descriptor.
+
+   Copyright (C) 1999, 2004-2007, 2009-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* written by Paul Eggert */
+
+#include <config.h>
+
+/* Specification.  */
+#include <unistd.h>
+
+#include <errno.h>
+#include <fcntl.h>
+
+#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
+/* Get declarations of the Win32 API functions.  */
+# define WIN32_LEAN_AND_MEAN
+# include <windows.h>
+#endif
+
+#if HAVE_DUP2
+
+# undef dup2
+
+int
+rpl_dup2 (int fd, int desired_fd)
+{
+  int result;
+# if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
+  /* If fd is closed, mingw hangs on dup2 (fd, fd).  If fd is open,
+     dup2 (fd, fd) returns 0, but all further attempts to use fd in
+     future dup2 calls will hang.  */
+  if (fd == desired_fd)
+    {
+      if ((HANDLE) _get_osfhandle (fd) == INVALID_HANDLE_VALUE)
+        {
+          errno = EBADF;
+          return -1;
+        }
+      return fd;
+    }
+  /* Wine 1.0.1 return 0 when desired_fd is negative but not -1:
+     http://bugs.winehq.org/show_bug.cgi?id=21289 */
+  if (desired_fd < 0)
+    {
+      errno = EBADF;
+      return -1;
+    }
+# endif
+  result = dup2 (fd, desired_fd);
+# ifdef __linux__
+  /* Correct a Linux return value.
+     <http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.30.y.git;a=commitdiff;h=2b79bc4f7ebbd5af3c8b867968f9f15602d5f802>
+   */
+  if (fd == desired_fd && result == (unsigned int) -EBADF)
+    {
+      errno = EBADF;
+      result = -1;
+    }
+# endif
+  if (result == 0)
+    result = desired_fd;
+  /* Correct a cygwin 1.5.x errno value.  */
+  else if (result == -1 && errno == EMFILE)
+    errno = EBADF;
+# if REPLACE_FCHDIR
+  if (fd != desired_fd && result != -1)
+    result = _gl_register_dup (fd, result);
+# endif
+  return result;
+}
+
+#else /* !HAVE_DUP2 */
+
+/* On older platforms, dup2 did not exist.  */
+
+# ifndef F_DUPFD
+static int
+dupfd (int fd, int desired_fd)
+{
+  int duplicated_fd = dup (fd);
+  if (duplicated_fd < 0 || duplicated_fd == desired_fd)
+    return duplicated_fd;
+  else
+    {
+      int r = dupfd (fd, desired_fd);
+      int e = errno;
+      close (duplicated_fd);
+      errno = e;
+      return r;
+    }
+}
+# endif
+
+int
+dup2 (int fd, int desired_fd)
+{
+  int result = fcntl (fd, F_GETFL) < 0 ? -1 : fd;
+  if (result == -1 || fd == desired_fd)
+    return result;
+  close (desired_fd);
+# ifdef F_DUPFD
+  result = fcntl (fd, F_DUPFD, desired_fd);
+#  if REPLACE_FCHDIR
+  if (0 <= result)
+    result = _gl_register_dup (fd, result);
+#  endif
+# else
+  result = dupfd (fd, desired_fd);
+# endif
+  if (result == -1 && (errno == EMFILE || errno == EINVAL))
+    errno = EBADF;
+  return result;
+}
+#endif /* !HAVE_DUP2 */

gl/errno.in.h

@@ -1,6 +1,6 @@
 /* A POSIX-like <errno.h>.
 
-   Copyright (C) 2008 Free Software Foundation, Inc.
+   Copyright (C) 2008-2010 Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -145,6 +145,11 @@
 #  define GNULIB_defined_ENOTSUP 1
 # endif
 
+# ifndef ESTALE
+#  define ESTALE    2009
+#  define GNULIB_defined_ESTALE 1
+# endif
+
 # ifndef ECANCELED
 #  define ECANCELED 2008
 #  define GNULIB_defined_ECANCELED 1

gl/error.c

@@ -1,5 +1,5 @@
 /* Error handler for noninteractive utilities
-   Copyright (C) 1990-1998, 2000-2007 Free Software Foundation, Inc.
+   Copyright (C) 1990-1998, 2000-2007, 2009-2010 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    This program is free software: you can redistribute it and/or modify
@@ -70,8 +70,8 @@ unsigned int error_message_count;
 extern void __error (int status, int errnum, const char *message, ...)
      __attribute__ ((__format__ (__printf__, 3, 4)));
 extern void __error_at_line (int status, int errnum, const char *file_name,
-			     unsigned int line_number, const char *message,
-			     ...)
+                             unsigned int line_number, const char *message,
+                             ...)
      __attribute__ ((__format__ (__printf__, 5, 6)));;
 # define error __error
 # define error_at_line __error_at_line
@@ -85,6 +85,9 @@ extern void __error_at_line (int status, int errnum, const char *file_name,
 
 #else /* not _LIBC */
 
+# include <fcntl.h>
+# include <unistd.h>
+
 # if !HAVE_DECL_STRERROR_R && STRERROR_R_CHAR_P
 #  ifndef HAVE_DECL_STRERROR_R
 "this configure-time declaration test was not run"
@@ -98,8 +101,33 @@ extern char *program_name;
 
 # if HAVE_STRERROR_R || defined strerror_r
 #  define __strerror_r strerror_r
-# endif	/* HAVE_STRERROR_R || defined strerror_r */
-#endif	/* not _LIBC */
+# endif /* HAVE_STRERROR_R || defined strerror_r */
+#endif  /* not _LIBC */
+
+static inline void
+flush_stdout (void)
+{
+#if !_LIBC && defined F_GETFL
+  int stdout_fd;
+
+# if GNULIB_FREOPEN_SAFER
+  /* Use of gnulib's freopen-safer module normally ensures that
+       fileno (stdout) == 1
+     whenever stdout is open.  */
+  stdout_fd = STDOUT_FILENO;
+# else
+  /* POSIX states that fileno (stdout) after fclose is unspecified.  But in
+     practice it is not a problem, because stdout is statically allocated and
+     the fd of a FILE stream is stored as a field in its allocated memory.  */
+  stdout_fd = fileno (stdout);
+# endif
+  /* POSIX states that fflush (stdout) after fclose is unspecified; it
+     is safe in glibc, but not on all other platforms.  fflush (NULL)
+     is always defined, but too draconian.  */
+  if (0 <= stdout_fd && 0 <= fcntl (stdout_fd, F_GETFL))
+#endif
+    fflush (stdout);
+}
 
 static void
 print_errno_message (int errnum)
@@ -147,58 +175,58 @@ error_tail (int status, int errnum, const char *message, va_list args)
       bool use_malloc = false;
 
       while (1)
-	{
-	  if (__libc_use_alloca (len * sizeof (wchar_t)))
-	    wmessage = (wchar_t *) alloca (len * sizeof (wchar_t));
-	  else
-	    {
-	      if (!use_malloc)
-		wmessage = NULL;
-
-	      wchar_t *p = (wchar_t *) realloc (wmessage,
-						len * sizeof (wchar_t));
-	      if (p == NULL)
-		{
-		  free (wmessage);
-		  fputws_unlocked (L"out of memory\n", stderr);
-		  return;
-		}
-	      wmessage = p;
-	      use_malloc = true;
-	    }
-
-	  memset (&st, '\0', sizeof (st));
-	  tmp = message;
-
-	  res = mbsrtowcs (wmessage, &tmp, len, &st);
-	  if (res != len)
-	    break;
-
-	  if (__builtin_expect (len >= SIZE_MAX / 2, 0))
-	    {
-	      /* This really should not happen if everything is fine.  */
-	      res = (size_t) -1;
-	      break;
-	    }
-
-	  len *= 2;
-	}
+        {
+          if (__libc_use_alloca (len * sizeof (wchar_t)))
+            wmessage = (wchar_t *) alloca (len * sizeof (wchar_t));
+          else
+            {
+              if (!use_malloc)
+                wmessage = NULL;
+
+              wchar_t *p = (wchar_t *) realloc (wmessage,
+                                                len * sizeof (wchar_t));
+              if (p == NULL)
+                {
+                  free (wmessage);
+                  fputws_unlocked (L"out of memory\n", stderr);
+                  return;
+                }
+              wmessage = p;
+              use_malloc = true;
+            }
+
+          memset (&st, '\0', sizeof (st));
+          tmp = message;
+
+          res = mbsrtowcs (wmessage, &tmp, len, &st);
+          if (res != len)
+            break;
+
+          if (__builtin_expect (len >= SIZE_MAX / 2, 0))
+            {
+              /* This really should not happen if everything is fine.  */
+              res = (size_t) -1;
+              break;
+            }
+
+          len *= 2;
+        }
 
       if (res == (size_t) -1)
-	{
-	  /* The string cannot be converted.  */
-	  if (use_malloc)
-	    {
-	      free (wmessage);
-	      use_malloc = false;
-	    }
-	  wmessage = (wchar_t *) L"???";
-	}
+        {
+          /* The string cannot be converted.  */
+          if (use_malloc)
+            {
+              free (wmessage);
+              use_malloc = false;
+            }
+          wmessage = (wchar_t *) L"???";
+        }
 
       __vfwprintf (stderr, wmessage, args);
 
       if (use_malloc)
-	free (wmessage);
+        free (wmessage);
     }
   else
 #endif
@@ -233,10 +261,10 @@ error (int status, int errnum, const char *message, ...)
      cancellation.  Therefore disable cancellation for now.  */
   int state = PTHREAD_CANCEL_ENABLE;
   __libc_ptf_call (pthread_setcancelstate, (PTHREAD_CANCEL_DISABLE, &state),
-		   0);
+                   0);
 #endif
 
-  fflush (stdout);
+  flush_stdout ();
 #ifdef _LIBC
   _IO_flockfile (stderr);
 #endif
@@ -268,7 +296,7 @@ int error_one_per_line;
 
 void
 error_at_line (int status, int errnum, const char *file_name,
-	       unsigned int line_number, const char *message, ...)
+               unsigned int line_number, const char *message, ...)
 {
   va_list args;
 
@@ -278,10 +306,10 @@ error_at_line (int status, int errnum, const char *file_name,
       static unsigned int old_line_number;
 
       if (old_line_number == line_number
-	  && (file_name == old_file_name
-	      || strcmp (old_file_name, file_name) == 0))
-	/* Simply return and print nothing.  */
-	return;
+          && (file_name == old_file_name
+              || strcmp (old_file_name, file_name) == 0))
+        /* Simply return and print nothing.  */
+        return;
 
       old_file_name = file_name;
       old_line_number = line_number;
@@ -292,10 +320,10 @@ error_at_line (int status, int errnum, const char *file_name,
      cancellation.  Therefore disable cancellation for now.  */
   int state = PTHREAD_CANCEL_ENABLE;
   __libc_ptf_call (pthread_setcancelstate, (PTHREAD_CANCEL_DISABLE, &state),
-		   0);
+                   0);
 #endif
 
-  fflush (stdout);
+  flush_stdout ();
 #ifdef _LIBC
   _IO_flockfile (stderr);
 #endif
@@ -312,10 +340,10 @@ error_at_line (int status, int errnum, const char *file_name,
 
 #if _LIBC
   __fxprintf (NULL, file_name != NULL ? "%s:%d: " : " ",
-	      file_name, line_number);
+              file_name, line_number);
 #else
   fprintf (stderr, file_name != NULL ? "%s:%d: " : " ",
-	   file_name, line_number);
+           file_name, line_number);
 #endif
 
   va_start (args, message);

gl/error.h

@@ -1,5 +1,6 @@
 /* Declaration for error-reporting function
-   Copyright (C) 1995, 1996, 1997, 2003, 2006, 2008 Free Software Foundation, Inc.
+   Copyright (C) 1995, 1996, 1997, 2003, 2006, 2008, 2009, 2010 Free Software
+   Foundation, Inc.
    This file is part of the GNU C Library.
 
    This program is free software: you can redistribute it and/or modify
@@ -19,19 +20,18 @@
 #define _ERROR_H 1
 
 #ifndef __attribute__
-/* This feature is available in gcc versions 2.5 and later.  */
-# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5)
-#  define __attribute__(Spec) /* empty */
-# endif
-/* The __-protected variants of `format' and `printf' attributes
-   are accepted by gcc versions 2.6.4 (effectively 2.7) and later.  */
+/* The __attribute__ feature is available in gcc versions 2.5 and later.
+   The __-protected variants of the attributes 'format' and 'printf' are
+   accepted by gcc versions 2.6.4 (effectively 2.7) and later.
+   We enable __attribute__ only if these are supported too, because
+   gnulib and libintl do '#define printf __printf__' when they override
+   the 'printf' function.  */
 # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
-#  define __format__ format
-#  define __printf__ printf
+#  define __attribute__(Spec)   /* empty */
 # endif
 #endif
 
-#ifdef	__cplusplus
+#ifdef __cplusplus
 extern "C" {
 #endif
 
@@ -43,7 +43,7 @@ extern void error (int __status, int __errnum, const char *__format, ...)
      __attribute__ ((__format__ (__printf__, 3, 4)));
 
 extern void error_at_line (int __status, int __errnum, const char *__fname,
-			   unsigned int __lineno, const char *__format, ...)
+                           unsigned int __lineno, const char *__format, ...)
      __attribute__ ((__format__ (__printf__, 5, 6)));
 
 /* If NULL, error will flush stdout, then print on stderr the program
@@ -58,7 +58,7 @@ extern unsigned int error_message_count;
    variable controls whether this mode is selected or not.  */
 extern int error_one_per_line;
 
-#ifdef	__cplusplus
+#ifdef __cplusplus
 }
 #endif
 

gl/exitfail.c

@@ -1,6 +1,7 @@
 /* Failure exit status
 
-   Copyright (C) 2002, 2003, 2005, 2006, 2007 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2003, 2005, 2006, 2007, 2009, 2010 Free Software
+   Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by

gl/exitfail.h

@@ -1,6 +1,6 @@
 /* Failure exit status
 
-   Copyright (C) 2002 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2009, 2010 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by

gl/fcntl--.h

@@ -1,6 +1,6 @@
 /* Like fcntl.h, but redefine some names to avoid glitches.
 
-   Copyright (C) 2005 Free Software Foundation, Inc.
+   Copyright (C) 2005, 2009-2010 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -25,3 +25,8 @@
 
 #undef creat
 #define creat creat_safer
+
+#if GNULIB_OPENAT_SAFER
+# undef openat
+# define openat openat_safer
+#endif

gl/fcntl-safer.h

@@ -1,6 +1,6 @@
 /* Invoke fcntl-like functions, but avoid some glitches.
 
-   Copyright (C) 2005 Free Software Foundation, Inc.
+   Copyright (C) 2005, 2009-2010 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -21,3 +21,7 @@
 
 int open_safer (char const *, int, ...);
 int creat_safer (char const *, mode_t);
+
+#if GNULIB_OPENAT_SAFER
+int openat_safer (int, char const *, int, ...);
+#endif

gl/fcntl.c

@@ -0,0 +1,294 @@
+/* Provide file descriptor control.
+
+   Copyright (C) 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Eric Blake <ebb9@byu.net>.  */
+
+#include <config.h>
+
+/* Specification.  */
+#include <fcntl.h>
+
+#include <errno.h>
+#include <limits.h>
+#include <stdarg.h>
+#include <unistd.h>
+
+#if !HAVE_FCNTL
+# define rpl_fcntl fcntl
+#endif
+#undef fcntl
+
+#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
+/* Get declarations of the Win32 API functions.  */
+# define WIN32_LEAN_AND_MEAN
+# include <windows.h>
+
+/* Upper bound on getdtablesize().  See lib/getdtablesize.c.  */
+# define OPEN_MAX_MAX 0x10000
+
+/* Duplicate OLDFD into the first available slot of at least NEWFD,
+   which must be positive, with FLAGS determining whether the duplicate
+   will be inheritable.  */
+static int
+dupfd (int oldfd, int newfd, int flags)
+{
+  /* Mingw has no way to create an arbitrary fd.  Iterate until all
+     file descriptors less than newfd are filled up.  */
+  HANDLE curr_process = GetCurrentProcess ();
+  HANDLE old_handle = (HANDLE) _get_osfhandle (oldfd);
+  unsigned char fds_to_close[OPEN_MAX_MAX / CHAR_BIT];
+  unsigned int fds_to_close_bound = 0;
+  int result;
+  BOOL inherit = flags & O_CLOEXEC ? FALSE : TRUE;
+  int mode;
+
+  if (newfd < 0 || getdtablesize () <= newfd)
+    {
+      errno = EINVAL;
+      return -1;
+    }
+  if (old_handle == INVALID_HANDLE_VALUE
+      || (mode = setmode (oldfd, O_BINARY)) == -1)
+    {
+      /* oldfd is not open, or is an unassigned standard file
+         descriptor.  */
+      errno = EBADF;
+      return -1;
+    }
+  setmode (oldfd, mode);
+  flags |= mode;
+
+  for (;;)
+    {
+      HANDLE new_handle;
+      int duplicated_fd;
+      unsigned int index;
+
+      if (!DuplicateHandle (curr_process,           /* SourceProcessHandle */
+                            old_handle,             /* SourceHandle */
+                            curr_process,           /* TargetProcessHandle */
+                            (PHANDLE) &new_handle,  /* TargetHandle */
+                            (DWORD) 0,              /* DesiredAccess */
+                            inherit,                /* InheritHandle */
+                            DUPLICATE_SAME_ACCESS)) /* Options */
+        {
+          /* TODO: Translate GetLastError () into errno.  */
+          errno = EMFILE;
+          result = -1;
+          break;
+        }
+      duplicated_fd = _open_osfhandle ((long) new_handle, flags);
+      if (duplicated_fd < 0)
+        {
+          CloseHandle (new_handle);
+          errno = EMFILE;
+          result = -1;
+          break;
+        }
+      if (newfd <= duplicated_fd)
+        {
+          result = duplicated_fd;
+          break;
+        }
+
+      /* Set the bit duplicated_fd in fds_to_close[].  */
+      index = (unsigned int) duplicated_fd / CHAR_BIT;
+      if (fds_to_close_bound <= index)
+        {
+          if (sizeof fds_to_close <= index)
+            /* Need to increase OPEN_MAX_MAX.  */
+            abort ();
+          memset (fds_to_close + fds_to_close_bound, '\0',
+                  index + 1 - fds_to_close_bound);
+          fds_to_close_bound = index + 1;
+        }
+      fds_to_close[index] |= 1 << ((unsigned int) duplicated_fd % CHAR_BIT);
+    }
+
+  /* Close the previous fds that turned out to be too small.  */
+  {
+    int saved_errno = errno;
+    unsigned int duplicated_fd;
+
+    for (duplicated_fd = 0;
+         duplicated_fd < fds_to_close_bound * CHAR_BIT;
+         duplicated_fd++)
+      if ((fds_to_close[duplicated_fd / CHAR_BIT]
+           >> (duplicated_fd % CHAR_BIT))
+          & 1)
+        close (duplicated_fd);
+
+    errno = saved_errno;
+  }
+
+# if REPLACE_FCHDIR
+  if (0 <= result)
+    result = _gl_register_dup (oldfd, result);
+# endif
+  return result;
+}
+#endif /* W32 */
+
+/* Perform the specified ACTION on the file descriptor FD, possibly
+   using the argument ARG further described below.  This replacement
+   handles the following actions, and forwards all others on to the
+   native fcntl.  An unrecognized ACTION returns -1 with errno set to
+   EINVAL.
+
+   F_DUPFD - duplicate FD, with int ARG being the minimum target fd.
+   If successful, return the duplicate, which will be inheritable;
+   otherwise return -1 and set errno.
+
+   F_DUPFD_CLOEXEC - duplicate FD, with int ARG being the minimum
+   target fd.  If successful, return the duplicate, which will not be
+   inheritable; otherwise return -1 and set errno.
+
+   F_GETFD - ARG need not be present.  If successful, return a
+   non-negative value containing the descriptor flags of FD (only
+   FD_CLOEXEC is portable, but other flags may be present); otherwise
+   return -1 and set errno.  */
+
+int
+rpl_fcntl (int fd, int action, /* arg */...)
+{
+  va_list arg;
+  int result = -1;
+  va_start (arg, action);
+  switch (action)
+    {
+
+#if !HAVE_FCNTL
+    case F_DUPFD:
+      {
+        int target = va_arg (arg, int);
+        result = dupfd (fd, target, 0);
+        break;
+      }
+#elif FCNTL_DUPFD_BUGGY || REPLACE_FCHDIR
+    case F_DUPFD:
+      {
+        int target = va_arg (arg, int);
+        /* Detect invalid target; needed for cygwin 1.5.x.  */
+        if (target < 0 || getdtablesize () <= target)
+          errno = EINVAL;
+        else
+          {
+            result = fcntl (fd, action, target);
+# if REPLACE_FCHDIR
+            if (0 <= result)
+              result = _gl_register_dup (fd, result);
+# endif
+          }
+        break;
+      } /* F_DUPFD */
+#endif /* FCNTL_DUPFD_BUGGY || REPLACE_FCHDIR */
+
+    case F_DUPFD_CLOEXEC:
+      {
+        int target = va_arg (arg, int);
+
+#if !HAVE_FCNTL
+        result = dupfd (fd, target, O_CLOEXEC);
+        break;
+#else /* HAVE_FCNTL */
+        /* Try the system call first, if the headers claim it exists
+           (that is, if GNULIB_defined_F_DUPFD_CLOEXEC is 0), since we
+           may be running with a glibc that has the macro but with an
+           older kernel that does not support it.  Cache the
+           information on whether the system call really works, but
+           avoid caching failure if the corresponding F_DUPFD fails
+           for any reason.  0 = unknown, 1 = yes, -1 = no.  */
+        static int have_dupfd_cloexec = GNULIB_defined_F_DUPFD_CLOEXEC ? -1 : 0;
+        if (0 <= have_dupfd_cloexec)
+          {
+            result = fcntl (fd, action, target);
+            if (0 <= result || errno != EINVAL)
+              {
+                have_dupfd_cloexec = 1;
+# if REPLACE_FCHDIR
+                if (0 <= result)
+                  result = _gl_register_dup (fd, result);
+# endif
+              }
+            else
+              {
+                result = rpl_fcntl (fd, F_DUPFD, target);
+                if (result < 0)
+                  break;
+                have_dupfd_cloexec = -1;
+              }
+          }
+        else
+          result = rpl_fcntl (fd, F_DUPFD, target);
+        if (0 <= result && have_dupfd_cloexec == -1)
+          {
+            int flags = fcntl (result, F_GETFD);
+            if (flags < 0 || fcntl (result, F_SETFD, flags | FD_CLOEXEC) == -1)
+              {
+                int saved_errno = errno;
+                close (result);
+                errno = saved_errno;
+                result = -1;
+              }
+          }
+        break;
+#endif /* HAVE_FCNTL */
+      } /* F_DUPFD_CLOEXEC */
+
+#if !HAVE_FCNTL
+    case F_GETFD:
+      {
+# if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
+        HANDLE handle = (HANDLE) _get_osfhandle (fd);
+        DWORD flags;
+        if (handle == INVALID_HANDLE_VALUE
+            || GetHandleInformation (handle, &flags) == 0)
+          errno = EBADF;
+        else
+          result = (flags & HANDLE_FLAG_INHERIT) ? 0 : FD_CLOEXEC;
+# else /* !W32 */
+        /* Use dup2 to reject invalid file descriptors.  No way to
+           access this information, so punt.  */
+        if (0 <= dup2 (fd, fd))
+          result = 0;
+# endif /* !W32 */
+        break;
+      } /* F_GETFD */
+#endif /* !HAVE_FCNTL */
+
+      /* Implementing F_SETFD on mingw is not trivial - there is no
+         API for changing the O_NOINHERIT bit on an fd, and merely
+         changing the HANDLE_FLAG_INHERIT bit on the underlying handle
+         can lead to odd state.  It may be possible by duplicating the
+         handle, using _open_osfhandle with the right flags, then
+         using dup2 to move the duplicate onto the original, but that
+         is not supported for now.  */
+
+    default:
+      {
+#if HAVE_FCNTL
+        void *p = va_arg (arg, void *);
+        result = fcntl (fd, action, p);
+#else
+        errno = EINVAL;
+#endif
+        break;
+      }
+    }
+  va_end (arg);
+  return result;
+}

gl/fcntl.in.h

@@ -1,6 +1,6 @@
 /* Like <fcntl.h>, but with non-working flags defined to 0.
 
-   Copyright (C) 2006-2008 Free Software Foundation, Inc.
+   Copyright (C) 2006-2010 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -25,8 +25,9 @@
 /* Special invocation convention.  */
 
 #include <sys/types.h>
-#include <sys/stat.h>
-#include <unistd.h>
+#ifndef __GLIBC__ /* Avoid namespace pollution on glibc systems.  */
+# include <sys/stat.h>
+#endif
 #@INCLUDE_NEXT@ @NEXT_FCNTL_H@
 
 #else
@@ -35,38 +36,126 @@
 #ifndef _GL_FCNTL_H
 
 #include <sys/types.h>
-#include <sys/stat.h>
-#include <unistd.h>
+#ifndef __GLIBC__ /* Avoid namespace pollution on glibc systems.  */
+# include <sys/stat.h>
+#endif
 /* The include_next requires a split double-inclusion guard.  */
 #@INCLUDE_NEXT@ @NEXT_FCNTL_H@
 
 #ifndef _GL_FCNTL_H
 #define _GL_FCNTL_H
 
+#ifndef __GLIBC__ /* Avoid namespace pollution on glibc systems.  */
+# include <unistd.h>
+#endif
+
+
+/* The definitions of _GL_FUNCDECL_RPL etc. are copied here.  */
+
+/* The definition of _GL_ARG_NONNULL is copied here.  */
+
+/* The definition of _GL_WARN_ON_USE is copied here.  */
+
 
 /* Declare overridden functions.  */
 
-#ifdef __cplusplus
-extern "C" {
+#if @GNULIB_FCNTL@
+# if @REPLACE_FCNTL@
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#   undef fcntl
+#   define fcntl rpl_fcntl
+#  endif
+_GL_FUNCDECL_RPL (fcntl, int, (int fd, int action, ...));
+_GL_CXXALIAS_RPL (fcntl, int, (int fd, int action, ...));
+# else
+#  if !@HAVE_FCNTL@
+_GL_FUNCDECL_SYS (fcntl, int, (int fd, int action, ...));
+#  endif
+_GL_CXXALIAS_SYS (fcntl, int, (int fd, int action, ...));
+# endif
+_GL_CXXALIASWARN (fcntl);
+#elif defined GNULIB_POSIXCHECK
+# undef fcntl
+# if HAVE_RAW_DECL_FCNTL
+_GL_WARN_ON_USE (fcntl, "fcntl is not always POSIX compliant - "
+                 "use gnulib module fcntl for portability");
+# endif
 #endif
 
 #if @GNULIB_OPEN@
 # if @REPLACE_OPEN@
-#  undef open
-#  define open rpl_open
-extern int open (const char *filename, int flags, ...);
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#   undef open
+#   define open rpl_open
+#  endif
+_GL_FUNCDECL_RPL (open, int, (const char *filename, int flags, ...)
+                             _GL_ARG_NONNULL ((1)));
+_GL_CXXALIAS_RPL (open, int, (const char *filename, int flags, ...));
+# else
+_GL_CXXALIAS_SYS (open, int, (const char *filename, int flags, ...));
 # endif
+_GL_CXXALIASWARN (open);
+#elif defined GNULIB_POSIXCHECK
+# undef open
+/* Assume open is always declared.  */
+_GL_WARN_ON_USE (open, "open is not always POSIX compliant - "
+                 "use gnulib module open for portability");
 #endif
 
-#ifdef FCHDIR_REPLACEMENT
-/* gnulib internal function.  */
-extern void _gl_register_fd (int fd, const char *filename);
+#if @GNULIB_OPENAT@
+# if @REPLACE_OPENAT@
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#   undef openat
+#   define openat rpl_openat
+#  endif
+_GL_FUNCDECL_RPL (openat, int,
+                  (int fd, char const *file, int flags, /* mode_t mode */ ...)
+                  _GL_ARG_NONNULL ((2)));
+_GL_CXXALIAS_RPL (openat, int,
+                  (int fd, char const *file, int flags, /* mode_t mode */ ...));
+# else
+#  if !@HAVE_OPENAT@
+_GL_FUNCDECL_SYS (openat, int,
+                  (int fd, char const *file, int flags, /* mode_t mode */ ...)
+                  _GL_ARG_NONNULL ((2)));
+#  endif
+_GL_CXXALIAS_SYS (openat, int,
+                  (int fd, char const *file, int flags, /* mode_t mode */ ...));
+# endif
+_GL_CXXALIASWARN (openat);
+#elif defined GNULIB_POSIXCHECK
+# undef openat
+# if HAVE_RAW_DECL_OPENAT
+_GL_WARN_ON_USE (openat, "openat is not portable - "
+                 "use gnulib module openat for portability");
+# endif
+#endif
+
+
+/* Fix up the FD_* macros, only known to be missing on mingw.  */
+
+#ifndef FD_CLOEXEC
+# define FD_CLOEXEC 1
+#endif
+
+/* Fix up the supported F_* macros.  Intentionally leave other F_*
+   macros undefined.  Only known to be missing on mingw.  */
+
+#ifndef F_DUPFD_CLOEXEC
+# define F_DUPFD_CLOEXEC 0x40000000
+/* Witness variable: 1 if gnulib defined F_DUPFD_CLOEXEC, 0 otherwise.  */
+# define GNULIB_defined_F_DUPFD_CLOEXEC 1
+#else
+# define GNULIB_defined_F_DUPFD_CLOEXEC 0
 #endif
 
-#ifdef __cplusplus
-}
+#ifndef F_DUPFD
+# define F_DUPFD 1
 #endif
 
+#ifndef F_GETFD
+# define F_GETFD 2
+#endif
 
 /* Fix up the O_* macros.  */
 
@@ -75,6 +164,12 @@ extern void _gl_register_fd (int fd, const char *filename);
 # define O_DIRECT O_DIRECTIO
 #endif
 
+#if !defined O_CLOEXEC && defined O_NOINHERIT
+/* Mingw spells it `O_NOINHERIT'.  Intentionally leave it
+   undefined if not available.  */
+# define O_CLOEXEC O_NOINHERIT
+#endif
+
 #ifndef O_DIRECT
 # define O_DIRECT 0
 #endif
@@ -119,6 +214,10 @@ extern void _gl_register_fd (int fd, const char *filename);
 # define O_SYNC 0
 #endif
 
+#ifndef O_TTY_INIT
+# define O_TTY_INIT 0
+#endif
+
 /* For systems that distinguish between text and binary I/O.
    O_BINARY is usually declared in fcntl.h  */
 #if !defined O_BINARY && defined _O_BINARY
@@ -138,6 +237,42 @@ extern void _gl_register_fd (int fd, const char *filename);
 # define O_TEXT 0
 #endif
 
+/* Fix up the AT_* macros.  */
+
+/* Work around a bug in Solaris 9 and 10: AT_FDCWD is positive.  Its
+   value exceeds INT_MAX, so its use as an int doesn't conform to the
+   C standard, and GCC and Sun C complain in some cases.  If the bug
+   is present, undef AT_FDCWD here, so it can be redefined below.  */
+#if 0 < AT_FDCWD && AT_FDCWD == 0xffd19553
+# undef AT_FDCWD
+#endif
+
+/* Use the same bit pattern as Solaris 9, but with the proper
+   signedness.  The bit pattern is important, in case this actually is
+   Solaris with the above workaround.  */
+#ifndef AT_FDCWD
+# define AT_FDCWD (-3041965)
+#endif
+
+/* Use the same values as Solaris 9.  This shouldn't matter, but
+   there's no real reason to differ.  */
+#ifndef AT_SYMLINK_NOFOLLOW
+# define AT_SYMLINK_NOFOLLOW 4096
+#endif
+
+#ifndef AT_REMOVEDIR
+# define AT_REMOVEDIR 1
+#endif
+
+/* Solaris 9 lacks these two, so just pick unique values.  */
+#ifndef AT_SYMLINK_FOLLOW
+# define AT_SYMLINK_FOLLOW 2
+#endif
+
+#ifndef AT_EACCESS
+# define AT_EACCESS 4
+#endif
+
 
 #endif /* _GL_FCNTL_H */
 #endif /* _GL_FCNTL_H */

gl/fd-safer.c

@@ -1,6 +1,6 @@
 /* Return a safer copy of a file descriptor.
 
-   Copyright (C) 2005, 2006, 2009 Free Software Foundation, Inc.
+   Copyright (C) 2005-2006, 2009-2010 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -22,7 +22,6 @@
 #include "unistd-safer.h"
 
 #include <errno.h>
-
 #include <unistd.h>
 
 /* Return FD, unless FD would be a copy of standard input, output, or

gl/float+.h

@@ -1,5 +1,5 @@
 /* Supplemental information about the floating-point formats.
-   Copyright (C) 2007 Free Software Foundation, Inc.
+   Copyright (C) 2007, 2009, 2010 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2007.
 
    This program is free software; you can redistribute it and/or modify

gl/float.in.h

@@ -1,6 +1,6 @@
 /* A correct <float.h>.
 
-   Copyright (C) 2007-2008 Free Software Foundation, Inc.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by

gl/floor.c

@@ -1,5 +1,5 @@
 /* Round towards negative infinity.
-   Copyright (C) 2007 Free Software Foundation, Inc.
+   Copyright (C) 2007, 2009, 2010 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -67,27 +67,27 @@ FUNC (DOUBLE x)
     {
       /* Avoid rounding errors for values near 2^k, where k >= MANT_DIG-1.  */
       if (z < TWO_MANT_DIG)
-	{
-	  /* Round to the next integer (nearest or up or down, doesn't matter).  */
-	  z += TWO_MANT_DIG;
-	  z -= TWO_MANT_DIG;
-	  /* Enforce rounding down.  */
-	  if (z > y)
-	    z -= L_(1.0);
-	}
+        {
+          /* Round to the next integer (nearest or up or down, doesn't matter).  */
+          z += TWO_MANT_DIG;
+          z -= TWO_MANT_DIG;
+          /* Enforce rounding down.  */
+          if (z > y)
+            z -= L_(1.0);
+        }
     }
   else if (z < L_(0.0))
     {
       /* Avoid rounding errors for values near -2^k, where k >= MANT_DIG-1.  */
       if (z > - TWO_MANT_DIG)
-	{
-	  /* Round to the next integer (nearest or up or down, doesn't matter).  */
-	  z -= TWO_MANT_DIG;
-	  z += TWO_MANT_DIG;
-	  /* Enforce rounding down.  */
-	  if (z > y)
-	    z -= L_(1.0);
-	}
+        {
+          /* Round to the next integer (nearest or up or down, doesn't matter).  */
+          z -= TWO_MANT_DIG;
+          z += TWO_MANT_DIG;
+          /* Enforce rounding down.  */
+          if (z > y)
+            z -= L_(1.0);
+        }
     }
   return z;
 }

gl/floorf.c

@@ -1,5 +1,5 @@
 /* Round towards negative infinity.
-   Copyright (C) 2007 Free Software Foundation, Inc.
+   Copyright (C) 2007, 2009, 2010 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by

gl/fsusage.c

@@ -1,7 +1,7 @@
 /* fsusage.c -- return space usage of mounted file systems
 
-   Copyright (C) 1991-1992, 1996, 1998-1999, 2002-2006, 2009
-   Free Software Foundation, Inc.
+   Copyright (C) 1991-1992, 1996, 1998-1999, 2002-2006, 2009-2010 Free Software
+   Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -23,7 +23,7 @@
 #include <limits.h>
 #include <sys/types.h>
 
-#if STAT_STATVFS		/* POSIX 1003.1-2001 (and later) with XSI */
+#if STAT_STATVFS                /* POSIX 1003.1-2001 (and later) with XSI */
 # include <sys/statvfs.h>
 #else
 /* Don't include backward-compatibility files unless they're needed.
@@ -40,16 +40,16 @@
 # if HAVE_SYS_VFS_H
 #  include <sys/vfs.h>
 # endif
-# if HAVE_SYS_FS_S5PARAM_H	/* Fujitsu UXP/V */
+# if HAVE_SYS_FS_S5PARAM_H      /* Fujitsu UXP/V */
 #  include <sys/fs/s5param.h>
 # endif
 # if defined HAVE_SYS_FILSYS_H && !defined _CRAY
-#  include <sys/filsys.h>	/* SVR2 */
+#  include <sys/filsys.h>       /* SVR2 */
 # endif
 # if HAVE_SYS_STATFS_H
 #  include <sys/statfs.h>
 # endif
-# if HAVE_DUSTAT_H		/* AIX PS/2 */
+# if HAVE_DUSTAT_H              /* AIX PS/2 */
 #  include <sys/dustat.h>
 # endif
 # include "full-read.h"
@@ -67,13 +67,13 @@
 #define PROPAGATE_ALL_ONES(x) \
   ((sizeof (x) < sizeof (uintmax_t) \
     && (~ (x) == (sizeof (x) < sizeof (int) \
-		  ? - (1 << (sizeof (x) * CHAR_BIT)) \
-		  : 0))) \
+                  ? - (1 << (sizeof (x) * CHAR_BIT)) \
+                  : 0))) \
    ? UINTMAX_MAX : (uintmax_t) (x))
 
 /* Extract the top bit of X as an uintmax_t value.  */
 #define EXTRACT_TOP_BIT(x) ((x) \
-			    & ((uintmax_t) 1 << (sizeof (x) * CHAR_BIT - 1)))
+                            & ((uintmax_t) 1 << (sizeof (x) * CHAR_BIT - 1)))
 
 /* If a value is negative, many space usage primitives store it into an
    integer variable by assignment, even if the variable's type is unsigned.
@@ -94,7 +94,7 @@
 int
 get_fs_usage (char const *file, char const *disk, struct fs_usage *fsp)
 {
-#if defined STAT_STATVFS		/* POSIX */
+#if defined STAT_STATVFS                /* POSIX */
 
   struct statvfs fsd;
 
@@ -103,10 +103,10 @@ get_fs_usage (char const *file, char const *disk, struct fs_usage *fsp)
 
   /* f_frsize isn't guaranteed to be supported.  */
   fsp->fsu_blocksize = (fsd.f_frsize
-			? PROPAGATE_ALL_ONES (fsd.f_frsize)
-			: PROPAGATE_ALL_ONES (fsd.f_bsize));
+                        ? PROPAGATE_ALL_ONES (fsd.f_frsize)
+                        : PROPAGATE_ALL_ONES (fsd.f_bsize));
 
-#elif defined STAT_STATFS2_FS_DATA	/* Ultrix */
+#elif defined STAT_STATFS2_FS_DATA      /* Ultrix */
 
   struct fs_data fsd;
 
@@ -121,7 +121,7 @@ get_fs_usage (char const *file, char const *disk, struct fs_usage *fsp)
   fsp->fsu_files = PROPAGATE_ALL_ONES (fsd.fd_req.gtot);
   fsp->fsu_ffree = PROPAGATE_ALL_ONES (fsd.fd_req.gfree);
 
-#elif defined STAT_READ_FILSYS		/* SVR2 */
+#elif defined STAT_READ_FILSYS          /* SVR2 */
 # ifndef SUPERBOFF
 #  define SUPERBOFF (SUPERB * 512)
 # endif
@@ -152,8 +152,8 @@ get_fs_usage (char const *file, char const *disk, struct fs_usage *fsp)
   fsp->fsu_bavail = PROPAGATE_TOP_BIT (fsd.s_tfree);
   fsp->fsu_bavail_top_bit_set = EXTRACT_TOP_BIT (fsd.s_tfree) != 0;
   fsp->fsu_files = (fsd.s_isize == -1
-		    ? UINTMAX_MAX
-		    : (fsd.s_isize - 2) * INOPB * (fsd.s_type == Fs2b ? 2 : 1));
+                    ? UINTMAX_MAX
+                    : (fsd.s_isize - 2) * INOPB * (fsd.s_type == Fs2b ? 2 : 1));
   fsp->fsu_ffree = PROPAGATE_ALL_ONES (fsd.s_tinode);
 
 #elif defined STAT_STATFS3_OSF1
@@ -165,7 +165,7 @@ get_fs_usage (char const *file, char const *disk, struct fs_usage *fsp)
 
   fsp->fsu_blocksize = PROPAGATE_ALL_ONES (fsd.f_fsize);
 
-#elif defined STAT_STATFS2_BSIZE	/* 4.3BSD, SunOS 4, HP-UX, AIX */
+#elif defined STAT_STATFS2_BSIZE        /* 4.3BSD, SunOS 4, HP-UX, AIX */
 
   struct statfs fsd;
 
@@ -189,7 +189,7 @@ get_fs_usage (char const *file, char const *disk, struct fs_usage *fsp)
     }
 # endif /* STATFS_TRUNCATES_BLOCK_COUNTS */
 
-#elif defined STAT_STATFS2_FSIZE	/* 4.4BSD */
+#elif defined STAT_STATFS2_FSIZE        /* 4.4BSD */
 
   struct statfs fsd;
 
@@ -198,7 +198,7 @@ get_fs_usage (char const *file, char const *disk, struct fs_usage *fsp)
 
   fsp->fsu_blocksize = PROPAGATE_ALL_ONES (fsd.f_fsize);
 
-#elif defined STAT_STATFS4		/* SVR3, Dynix, Irix, AIX */
+#elif defined STAT_STATFS4              /* SVR3, Dynix, Irix, AIX */
 
 # if !_AIX && !defined _SEQUENT_ && !defined DOLPHIN
 #  define f_bavail f_bfree

gl/fsusage.h

@@ -1,6 +1,6 @@
 /* fsusage.h -- declarations for file system space usage info
 
-   Copyright (C) 1991, 1992, 1997, 2003, 2004, 2005, 2006 Free Software
+   Copyright (C) 1991-1992, 1997, 2003-2006, 2009-2010 Free Software
    Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
@@ -26,13 +26,13 @@
 
 struct fs_usage
 {
-  uintmax_t fsu_blocksize;	/* Size of a block.  */
-  uintmax_t fsu_blocks;		/* Total blocks. */
-  uintmax_t fsu_bfree;		/* Free blocks available to superuser. */
-  uintmax_t fsu_bavail;		/* Free blocks available to non-superuser. */
-  bool fsu_bavail_top_bit_set;	/* 1 if fsu_bavail represents a value < 0.  */
-  uintmax_t fsu_files;		/* Total file nodes. */
-  uintmax_t fsu_ffree;		/* Free file nodes. */
+  uintmax_t fsu_blocksize;      /* Size of a block.  */
+  uintmax_t fsu_blocks;         /* Total blocks. */
+  uintmax_t fsu_bfree;          /* Free blocks available to superuser. */
+  uintmax_t fsu_bavail;         /* Free blocks available to non-superuser. */
+  bool fsu_bavail_top_bit_set;  /* 1 if fsu_bavail represents a value < 0.  */
+  uintmax_t fsu_files;          /* Total file nodes. */
+  uintmax_t fsu_ffree;          /* Free file nodes. */
 };
 
 int get_fs_usage (char const *file, char const *disk, struct fs_usage *fsp);

gl/full-read.c

@@ -1,5 +1,5 @@
 /* An interface to read that retries after partial reads and interrupts.
-   Copyright (C) 2002, 2003 Free Software Foundation, Inc.
+   Copyright (C) 2002-2003, 2009-2010 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by

gl/full-read.h

@@ -1,6 +1,6 @@
 /* An interface to read() that reads all it is asked to read.
 
-   Copyright (C) 2002 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2009-2010 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by

gl/full-write.c

@@ -1,7 +1,6 @@
 /* An interface to read and write that retries (if necessary) until complete.
 
-   Copyright (C) 1993, 1994, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
-   2004, 2005, 2006 Free Software Foundation, Inc.
+   Copyright (C) 1993-1994, 1997-2006, 2009-2010 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -65,12 +64,12 @@ full_rw (int fd, const void *buf, size_t count)
     {
       size_t n_rw = safe_rw (fd, ptr, count);
       if (n_rw == (size_t) -1)
-	break;
+        break;
       if (n_rw == 0)
-	{
-	  errno = ZERO_BYTE_TRANSFER_ERRNO;
-	  break;
-	}
+        {
+          errno = ZERO_BYTE_TRANSFER_ERRNO;
+          break;
+        }
       total += n_rw;
       ptr += n_rw;
       count -= n_rw;

gl/full-write.h

@@ -1,6 +1,6 @@
 /* An interface to write() that writes all it is asked to write.
 
-   Copyright (C) 2002-2003 Free Software Foundation, Inc.
+   Copyright (C) 2002-2003, 2009-2010 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by

gl/gai_strerror.c

@@ -1,4 +1,5 @@
-/* Copyright (C) 1997, 2001, 2002, 2004, 2005, 2006, 2008, 2009 Free Software Foundation, Inc.
+/* Copyright (C) 1997, 2001, 2002, 2004, 2005, 2006, 2008, 2009, 2010 Free
+   Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Philip Blundell <pjb27@cam.ac.uk>, 1997.
 

gl/getaddrinfo.c

@@ -1,6 +1,5 @@
 /* Get address information (partial implementation).
-   Copyright (C) 1997, 2001, 2002, 2004, 2005, 2006, 2007, 2008 Free Software
-   Foundation, Inc.
+   Copyright (C) 1997, 2001-2002, 2004-2010 Free Software Foundation, Inc.
    Contributed by Simon Josefsson <simon@josefsson.org>.
 
    This program is free software; you can redistribute it and/or modify
@@ -19,6 +18,10 @@
 
 #include <config.h>
 
+/* Don't use __attribute__ __nonnull__ in this compilation unit.  Otherwise gcc
+   optimizes away the sa == NULL test below.  */
+#define _GL_ARG_NONNULL(params)
+
 #include <netdb.h>
 
 #if HAVE_NETINET_IN_H
@@ -58,12 +61,12 @@
 
 #ifdef WIN32_NATIVE
 typedef int (WSAAPI *getaddrinfo_func) (const char*, const char*,
-					const struct addrinfo*,
-					struct addrinfo**);
+                                        const struct addrinfo*,
+                                        struct addrinfo**);
 typedef void (WSAAPI *freeaddrinfo_func) (struct addrinfo*);
 typedef int (WSAAPI *getnameinfo_func) (const struct sockaddr*,
-					socklen_t, char*, DWORD,
-					char*, DWORD, int);
+                                        socklen_t, char*, DWORD,
+                                        char*, DWORD, int);
 
 static getaddrinfo_func getaddrinfo_ptr = NULL;
 static freeaddrinfo_func freeaddrinfo_ptr = NULL;
@@ -123,9 +126,9 @@ validate_family (int family)
    socket addresses. */
 int
 getaddrinfo (const char *restrict nodename,
-	     const char *restrict servname,
-	     const struct addrinfo *restrict hints,
-	     struct addrinfo **restrict res)
+             const char *restrict servname,
+             const struct addrinfo *restrict hints,
+             struct addrinfo **restrict res)
 {
   struct addrinfo *tmp;
   int port = 0;
@@ -165,7 +168,7 @@ getaddrinfo (const char *restrict nodename,
   if (!nodename)
     {
       if (!(hints->ai_flags & AI_PASSIVE))
-	return EAI_NONAME;
+        return EAI_NONAME;
 
 #ifdef HAVE_IPV6
       nodename = (hints->ai_family == AF_INET6) ? "::" : "0.0.0.0";
@@ -178,24 +181,24 @@ getaddrinfo (const char *restrict nodename,
     {
       struct servent *se = NULL;
       const char *proto =
-	(hints && hints->ai_socktype == SOCK_DGRAM) ? "udp" : "tcp";
+        (hints && hints->ai_socktype == SOCK_DGRAM) ? "udp" : "tcp";
 
       if (hints == NULL || !(hints->ai_flags & AI_NUMERICSERV))
-	/* FIXME: Use getservbyname_r if available. */
-	se = getservbyname (servname, proto);
+        /* FIXME: Use getservbyname_r if available. */
+        se = getservbyname (servname, proto);
 
       if (!se)
-	{
-	  char *c;
-	  if (!(*servname >= '0' && *servname <= '9'))
-	    return EAI_NONAME;
-	  port = strtoul (servname, &c, 10);
-	  if (*c || port > 0xffff)
-	    return EAI_NONAME;
-	  port = htons (port);
-	}
+        {
+          char *c;
+          if (!(*servname >= '0' && *servname <= '9'))
+            return EAI_NONAME;
+          port = strtoul (servname, &c, 10);
+          if (*c || port > 0xffff)
+            return EAI_NONAME;
+          port = htons (port);
+        }
       else
-	port = se->s_port;
+        port = se->s_port;
     }
 
   /* FIXME: Use gethostbyname_r if available. */
@@ -230,23 +233,23 @@ getaddrinfo (const char *restrict nodename,
 #if HAVE_IPV6
     case PF_INET6:
       {
-	struct v6_pair *p = storage;
-	struct sockaddr_in6 *sinp = &p->sockaddr_in6;
-	tmp = &p->addrinfo;
+        struct v6_pair *p = storage;
+        struct sockaddr_in6 *sinp = &p->sockaddr_in6;
+        tmp = &p->addrinfo;
 
-	if (port)
-	  sinp->sin6_port = port;
+        if (port)
+          sinp->sin6_port = port;
 
-	if (he->h_length != sizeof (sinp->sin6_addr))
-	  {
-	    free (storage);
-	    return EAI_SYSTEM; /* FIXME: Better return code?  Set errno? */
-	  }
+        if (he->h_length != sizeof (sinp->sin6_addr))
+          {
+            free (storage);
+            return EAI_SYSTEM; /* FIXME: Better return code?  Set errno? */
+          }
 
-	memcpy (&sinp->sin6_addr, he->h_addr_list[0], sizeof sinp->sin6_addr);
+        memcpy (&sinp->sin6_addr, he->h_addr_list[0], sizeof sinp->sin6_addr);
 
-	tmp->ai_addr = (struct sockaddr *) sinp;
-	tmp->ai_addrlen = sizeof *sinp;
+        tmp->ai_addr = (struct sockaddr *) sinp;
+        tmp->ai_addrlen = sizeof *sinp;
       }
       break;
 #endif
@@ -254,23 +257,23 @@ getaddrinfo (const char *restrict nodename,
 #if HAVE_IPV4
     case PF_INET:
       {
-	struct v4_pair *p = storage;
-	struct sockaddr_in *sinp = &p->sockaddr_in;
-	tmp = &p->addrinfo;
+        struct v4_pair *p = storage;
+        struct sockaddr_in *sinp = &p->sockaddr_in;
+        tmp = &p->addrinfo;
 
-	if (port)
-	  sinp->sin_port = port;
+        if (port)
+          sinp->sin_port = port;
 
-	if (he->h_length != sizeof (sinp->sin_addr))
-	  {
-	    free (storage);
-	    return EAI_SYSTEM; /* FIXME: Better return code?  Set errno? */
-	  }
+        if (he->h_length != sizeof (sinp->sin_addr))
+          {
+            free (storage);
+            return EAI_SYSTEM; /* FIXME: Better return code?  Set errno? */
+          }
 
-	memcpy (&sinp->sin_addr, he->h_addr_list[0], sizeof sinp->sin_addr);
+        memcpy (&sinp->sin_addr, he->h_addr_list[0], sizeof sinp->sin_addr);
 
-	tmp->ai_addr = (struct sockaddr *) sinp;
-	tmp->ai_addrlen = sizeof *sinp;
+        tmp->ai_addr = (struct sockaddr *) sinp;
+        tmp->ai_addrlen = sizeof *sinp;
       }
       break;
 #endif
@@ -284,16 +287,16 @@ getaddrinfo (const char *restrict nodename,
     {
       const char *cn;
       if (he->h_name)
-	cn = he->h_name;
+        cn = he->h_name;
       else
-	cn = nodename;
+        cn = nodename;
 
       tmp->ai_canonname = strdup (cn);
       if (!tmp->ai_canonname)
-	{
-	  free (storage);
-	  return EAI_MEMORY;
-	}
+        {
+          free (storage);
+          return EAI_MEMORY;
+        }
     }
 
   tmp->ai_protocol = (hints) ? hints->ai_protocol : 0;
@@ -348,15 +351,16 @@ freeaddrinfo (struct addrinfo *ai)
     }
 }
 
-int getnameinfo(const struct sockaddr *restrict sa, socklen_t salen,
-		char *restrict node, socklen_t nodelen,
-		char *restrict service, socklen_t servicelen,
-		int flags)
+int
+getnameinfo (const struct sockaddr *restrict sa, socklen_t salen,
+             char *restrict node, socklen_t nodelen,
+             char *restrict service, socklen_t servicelen,
+             int flags)
 {
 #ifdef WIN32_NATIVE
   if (use_win32_p ())
     return getnameinfo_ptr (sa, salen, node, nodelen,
-			    service, servicelen, flags);
+                            service, servicelen, flags);
 #endif
 
   /* FIXME: Support other flags. */
@@ -373,13 +377,13 @@ int getnameinfo(const struct sockaddr *restrict sa, socklen_t salen,
 #if HAVE_IPV4
     case AF_INET:
       if (salen < sizeof (struct sockaddr_in))
-	return EAI_FAMILY;
+        return EAI_FAMILY;
       break;
 #endif
 #if HAVE_IPV6
     case AF_INET6:
       if (salen < sizeof (struct sockaddr_in6))
-	return EAI_FAMILY;
+        return EAI_FAMILY;
       break;
 #endif
     default:
@@ -389,28 +393,28 @@ int getnameinfo(const struct sockaddr *restrict sa, socklen_t salen,
   if (node && nodelen > 0 && flags & NI_NUMERICHOST)
     {
       switch (sa->sa_family)
-	{
+        {
 #if HAVE_IPV4
-	case AF_INET:
-	  if (!inet_ntop (AF_INET,
-			  &(((const struct sockaddr_in *) sa)->sin_addr),
-			  node, nodelen))
-	    return EAI_SYSTEM;
-	  break;
+        case AF_INET:
+          if (!inet_ntop (AF_INET,
+                          &(((const struct sockaddr_in *) sa)->sin_addr),
+                          node, nodelen))
+            return EAI_SYSTEM;
+          break;
 #endif
 
 #if HAVE_IPV6
-	case AF_INET6:
-	  if (!inet_ntop (AF_INET6,
-			  &(((const struct sockaddr_in6 *) sa)->sin6_addr),
-			  node, nodelen))
-	    return EAI_SYSTEM;
-	  break;
+        case AF_INET6:
+          if (!inet_ntop (AF_INET6,
+                          &(((const struct sockaddr_in6 *) sa)->sin6_addr),
+                          node, nodelen))
+            return EAI_SYSTEM;
+          break;
 #endif
 
-	default:
-	  return EAI_FAMILY;
-	}
+        default:
+          return EAI_FAMILY;
+        }
     }
 
   if (service && servicelen > 0 && flags & NI_NUMERICSERV)
@@ -422,13 +426,13 @@ int getnameinfo(const struct sockaddr *restrict sa, socklen_t salen,
 #if HAVE_IPV6
       case AF_INET6:
 #endif
-	{
-	  unsigned short int port
-	    = ntohs (((const struct sockaddr_in *) sa)->sin_port);
-	  if (servicelen <= snprintf (service, servicelen, "%u", port))
-	    return EAI_OVERFLOW;
-	}
-	break;
+        {
+          unsigned short int port
+            = ntohs (((const struct sockaddr_in *) sa)->sin_port);
+          if (servicelen <= snprintf (service, servicelen, "%u", port))
+            return EAI_OVERFLOW;
+        }
+        break;
       }
 
   return 0;

gl/getdtablesize.c

@@ -0,0 +1,63 @@
+/* getdtablesize() function for platforms that don't have it.
+   Copyright (C) 2008-2010 Free Software Foundation, Inc.
+   Written by Bruno Haible <bruno@clisp.org>, 2008.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+/* Specification.  */
+#include <unistd.h>
+
+#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
+
+#include <stdio.h>
+
+/* Cache for the previous getdtablesize () result.  */
+static int dtablesize;
+
+int
+getdtablesize (void)
+{
+  if (dtablesize == 0)
+    {
+      /* We are looking for the number N such that the valid file descriptors
+         are 0..N-1.  It can be obtained through a loop as follows:
+           {
+             int fd;
+             for (fd = 3; fd < 65536; fd++)
+               if (dup2 (0, fd) == -1)
+                 break;
+             return fd;
+           }
+         On Windows XP, the result is 2048.
+         The drawback of this loop is that it allocates memory for a libc
+         internal array that is never freed.
+
+         The number N can also be obtained as the upper bound for
+         _getmaxstdio ().  _getmaxstdio () returns the maximum number of open
+         FILE objects.  The sanity check in _setmaxstdio reveals the maximum
+         number of file descriptors.  This too allocates memory, but it is
+         freed when we call _setmaxstdio with the original value.  */
+      int orig_max_stdio = _getmaxstdio ();
+      unsigned int bound;
+      for (bound = 0x10000; _setmaxstdio (bound) < 0; bound = bound / 2)
+        ;
+      _setmaxstdio (orig_max_stdio);
+      dtablesize = bound;
+    }
+  return dtablesize;
+}
+
+#endif

gl/gethostname.c

@@ -1,6 +1,7 @@
 /* gethostname emulation for SysV and POSIX.1.
 
-   Copyright (C) 1992, 2003, 2006, 2008 Free Software Foundation, Inc.
+   Copyright (C) 1992, 2003, 2006, 2008, 2009, 2010 Free Software Foundation,
+   Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -15,10 +16,14 @@
    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
-/* David MacKenzie <djm@gnu.ai.mit.edu> */
+/* David MacKenzie <djm@gnu.ai.mit.edu>
+   Windows port by Simon Josefsson <simon@josefsson.org> */
 
 #include <config.h>
 
+#if !((defined _WIN32 || defined __WIN32__) && !defined __CYGWIN__)
+/* Unix API.  */
+
 /* Specification.  */
 #include <unistd.h>
 
@@ -50,7 +55,51 @@ gethostname (char *name, size_t len)
     }
   strncpy (name, uts.nodename, len);
 #else
-  strcpy (name, "");		/* Hardcode your system name if you want.  */
+  strcpy (name, "");            /* Hardcode your system name if you want.  */
 #endif
   return 0;
 }
+
+#else
+/* Native Windows API.  Which primitive to choose?
+   - gethostname() requires linking with -lws2_32.
+   - GetComputerName() does not return the right kind of hostname.
+   - GetComputerNameEx(ComputerNameDnsHostname,...) returns the right hostname,
+     but it is hard to use portably:
+       - It requires defining _WIN32_WINNT to at least 0x0500.
+       - With mingw, it also requires
+         "#define GetComputerNameEx GetComputerNameExA".
+       - With older versions of mingw, none of the declarations are present at
+         all, not even of the enum value ComputerNameDnsHostname.
+   So we use gethostname().  Linking with -lws2_32 is the least evil.  */
+
+#define WIN32_LEAN_AND_MEAN
+/* Get winsock2.h. */
+#include <unistd.h>
+
+/* Get INT_MAX.  */
+#include <limits.h>
+
+/* Get set_winsock_errno. */
+#include "w32sock.h"
+
+#include "sockets.h"
+
+#undef gethostname
+
+int
+rpl_gethostname (char *name, size_t len)
+{
+  int r;
+
+  if (len > INT_MAX)
+    len = INT_MAX;
+  gl_sockets_startup (SOCKETS_1_1);
+  r = gethostname (name, (int) len);
+  if (r < 0)
+    set_winsock_errno ();
+
+  return r;
+}
+
+#endif

gl/getloadavg.c

@@ -1,8 +1,7 @@
 /* Get the system load averages.
 
-   Copyright (C) 1985, 1986, 1987, 1988, 1989, 1991, 1992, 1993, 1994,
-   1995, 1997, 1999, 2000, 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free
-   Software Foundation, Inc.
+   Copyright (C) 1985-1989, 1991-1995, 1997, 1999-2000, 2003-2010 Free Software
+   Foundation, Inc.
 
    NOTE: The canonical source of this file is maintained with gnulib.
    Bugs can be reported to bug-gnulib@gnu.org.
@@ -22,58 +21,58 @@
 
 /* Compile-time symbols that this file uses:
 
-   HAVE_PSTAT_GETDYNAMIC	Define this if your system has the
+   HAVE_PSTAT_GETDYNAMIC        Define this if your system has the
                                 pstat_getdynamic function.  I think it
-				is unique to HPUX9.  The best way to get the
-				definition is through the AC_FUNC_GETLOADAVG
-				macro that comes with autoconf 2.13 or newer.
-				If that isn't an option, then just put
-				AC_CHECK_FUNCS(pstat_getdynamic) in your
-				configure.in file.
+                                is unique to HPUX9.  The best way to get the
+                                definition is through the AC_FUNC_GETLOADAVG
+                                macro that comes with autoconf 2.13 or newer.
+                                If that isn't an option, then just put
+                                AC_CHECK_FUNCS(pstat_getdynamic) in your
+                                configure.in file.
    HAVE_LIBPERFSTAT Define this if your system has the
-				perfstat_cpu_total function in libperfstat (AIX).
-   FIXUP_KERNEL_SYMBOL_ADDR()	Adjust address in returned struct nlist.
-   KERNEL_FILE			Name of the kernel file to nlist.
-   LDAV_CVT()			Scale the load average from the kernel.
-				Returns a double.
-   LDAV_SYMBOL			Name of kernel symbol giving load average.
-   LOAD_AVE_TYPE		Type of the load average array in the kernel.
-				Must be defined unless one of
-				apollo, DGUX, NeXT, or UMAX is defined;
+                                perfstat_cpu_total function in libperfstat (AIX).
+   FIXUP_KERNEL_SYMBOL_ADDR()   Adjust address in returned struct nlist.
+   KERNEL_FILE                  Name of the kernel file to nlist.
+   LDAV_CVT()                   Scale the load average from the kernel.
+                                Returns a double.
+   LDAV_SYMBOL                  Name of kernel symbol giving load average.
+   LOAD_AVE_TYPE                Type of the load average array in the kernel.
+                                Must be defined unless one of
+                                apollo, DGUX, NeXT, or UMAX is defined;
                                 or we have libkstat;
-				otherwise, no load average is available.
+                                otherwise, no load average is available.
    HAVE_NLIST_H                 nlist.h is available.  NLIST_STRUCT defaults
                                 to this.
-   NLIST_STRUCT			Include nlist.h, not a.out.h, and
-				the nlist n_name element is a pointer,
-				not an array.
+   NLIST_STRUCT                 Include nlist.h, not a.out.h.
+   N_NAME_POINTER               The nlist n_name element is a pointer,
+                                not an array.
    HAVE_STRUCT_NLIST_N_UN_N_NAME `n_un.n_name' is member of `struct nlist'.
-   LINUX_LDAV_FILE		[__linux__, __CYGWIN__]: File containing
-				load averages.
+   LINUX_LDAV_FILE              [__linux__, __CYGWIN__]: File containing
+                                load averages.
 
    Specific system predefines this file uses, aside from setting
    default values if not emacs:
 
    apollo
-   BSD				Real BSD, not just BSD-like.
+   BSD                          Real BSD, not just BSD-like.
    convex
    DGUX
-   eunice			UNIX emulator under VMS.
+   eunice                       UNIX emulator under VMS.
    hpux
-   __MSDOS__			No-op for MSDOS.
+   __MSDOS__                    No-op for MSDOS.
    NeXT
    sgi
-   sequent			Sequent Dynix 3.x.x (BSD)
-   _SEQUENT_			Sequent DYNIX/ptx 1.x.x (SYSV)
+   sequent                      Sequent Dynix 3.x.x (BSD)
+   _SEQUENT_                    Sequent DYNIX/ptx 1.x.x (SYSV)
    sony_news                    NEWS-OS (works at least for 4.1C)
    UMAX
    UMAX4_3
    VMS
-   WINDOWS32			No-op for Windows95/NT.
-   __linux__			Linux: assumes /proc file system mounted.
-				Support from Michael K. Johnson.
-   __CYGWIN__			Cygwin emulates linux /proc/loadavg.
-   __NetBSD__			NetBSD: assumes /kern file system mounted.
+   WINDOWS32                    No-op for Windows95/NT.
+   __linux__                    Linux: assumes /proc file system mounted.
+                                Support from Michael K. Johnson.
+   __CYGWIN__                   Cygwin emulates linux /proc/loadavg.
+   __NetBSD__                   NetBSD: assumes /kern file system mounted.
 
    In addition, to avoid nesting many #ifdefs, we internally set
    LDAV_DONE to indicate that the load average has been computed.
@@ -112,7 +111,6 @@
 # include "c-strtod.h"
 # include "cloexec.h"
 # include "intprops.h"
-# include "xalloc.h"
 
 /* The existing Emacs configuration files define a macro called
    LOAD_AVE_CVT, which accepts a value of type LOAD_AVE_TYPE, and
@@ -203,7 +201,7 @@
    default, but _MACH_IND_SYS_TYPES is defined in <sys/types.h>.  Combine
    that with a couple of other things and we'll have a unique match.  */
 # if !defined (tek4300) && defined (unix) && defined (m68k) && defined (mc68000) && defined (mc68020) && defined (_MACH_IND_SYS_TYPES)
-#  define tek4300			/* Define by emacs, but not by other users.  */
+#  define tek4300                       /* Define by emacs, but not by other users.  */
 # endif
 
 
@@ -317,7 +315,7 @@
 #   define FSCALE 65536.0
 #  endif
 
-# endif	/* Not FSCALE.  */
+# endif /* Not FSCALE.  */
 
 # if !defined (LDAV_CVT) && defined (FSCALE)
 #  define LDAV_CVT(n) (((double) (n)) / FSCALE)
@@ -478,7 +476,7 @@ static unsigned int samples;
 # endif /* UMAX */
 
 # ifdef DGUX
-static struct dg_sys_info_load_info load_info;	/* what-a-mouthful! */
+static struct dg_sys_info_load_info load_info;  /* what-a-mouthful! */
 # endif /* DGUX */
 
 # if !defined (HAVE_LIBKSTAT) && defined (LOAD_AVE_TYPE)
@@ -507,7 +505,7 @@ static kvm_t *kd;
 int
 getloadavg (double loadavg[], int nelem)
 {
-  int elem = 0;			/* Return value.  */
+  int elem = 0;                 /* Return value.  */
 
 # ifdef NO_GET_LOAD_AVG
 #  define LDAV_DONE
@@ -549,16 +547,16 @@ getloadavg (double loadavg[], int nelem)
     {
       kn = kstat_data_lookup (ksp, "avenrun_5min");
       if (kn != 0)
-	{
-	  loadavg[elem++] = (double) kn->value.ul / FSCALE;
-
-	  if (nelem >= 3)
-	    {
-	      kn = kstat_data_lookup (ksp, "avenrun_15min");
-	      if (kn != 0)
-		loadavg[elem++] = (double) kn->value.ul / FSCALE;
-	    }
-	}
+        {
+          loadavg[elem++] = (double) kn->value.ul / FSCALE;
+
+          if (nelem >= 3)
+            {
+              kn = kstat_data_lookup (ksp, "avenrun_15min");
+              if (kn != 0)
+                loadavg[elem++] = (double) kn->value.ul / FSCALE;
+            }
+        }
     }
 
   kstat_close (kc);
@@ -626,11 +624,11 @@ getloadavg (double loadavg[], int nelem)
       errno = 0;
       d = c_strtod (ptr, &endptr);
       if (ptr == endptr || (d == 0 && errno != 0))
-	{
-	  if (elem == 0)
-	    return -1;
-	  break;
-	}
+        {
+          if (elem == 0)
+            return -1;
+          break;
+        }
       loadavg[elem] = d;
       ptr = endptr;
     }
@@ -655,8 +653,8 @@ getloadavg (double loadavg[], int nelem)
   if (fp == NULL)
     return -1;
   count = fscanf (fp, "%lu %lu %lu %lu\n",
-		  &load_ave[0], &load_ave[1], &load_ave[2],
-		  &scale);
+                  &load_ave[0], &load_ave[1], &load_ave[2],
+                  &scale);
   (void) fclose (fp);
   if (count != 4)
     return -1;
@@ -682,21 +680,21 @@ getloadavg (double loadavg[], int nelem)
   if (!getloadavg_initialized)
     {
       if (processor_set_default (host_self (), &default_set) == KERN_SUCCESS)
-	getloadavg_initialized = true;
+        getloadavg_initialized = true;
     }
 
   if (getloadavg_initialized)
     {
       info_count = PROCESSOR_SET_BASIC_INFO_COUNT;
       if (processor_set_info (default_set, PROCESSOR_SET_BASIC_INFO, &host,
-			      (processor_set_info_t) &info, &info_count)
-	  != KERN_SUCCESS)
-	getloadavg_initialized = false;
+                              (processor_set_info_t) &info, &info_count)
+          != KERN_SUCCESS)
+        getloadavg_initialized = false;
       else
-	{
-	  if (nelem > 0)
-	    loadavg[elem++] = (double) info.load_average / LOAD_SCALE;
-	}
+        {
+          if (nelem > 0)
+            loadavg[elem++] = (double) info.load_average / LOAD_SCALE;
+        }
     }
 
   if (!getloadavg_initialized)
@@ -728,24 +726,24 @@ getloadavg (double loadavg[], int nelem)
       desc.sd_size = sizeof conf;
 
       if (inq_stats (1, &desc))
-	return -1;
+        return -1;
 
       c = 0;
       for (i = 0; i < conf.config_maxclass; ++i)
-	{
-	  struct class_stats stats;
-	  bzero ((char *) &stats, sizeof stats);
+        {
+          struct class_stats stats;
+          bzero ((char *) &stats, sizeof stats);
 
-	  desc.sd_type = CPUTYPE_CLASS;
-	  desc.sd_objid = i;
-	  desc.sd_addr = (char *) &stats;
-	  desc.sd_size = sizeof stats;
+          desc.sd_type = CPUTYPE_CLASS;
+          desc.sd_objid = i;
+          desc.sd_addr = (char *) &stats;
+          desc.sd_size = sizeof stats;
 
-	  if (inq_stats (1, &desc))
-	    return -1;
+          if (inq_stats (1, &desc))
+            return -1;
 
-	  c += stats.class_numcpus;
-	}
+          c += stats.class_numcpus;
+        }
       cpus = c;
       samples = cpus < 2 ? 3 : (2 * cpus / 3);
     }
@@ -766,7 +764,7 @@ getloadavg (double loadavg[], int nelem)
     {
       load += proc_sum_data.ps_nrun[j];
       if (j++ == PS_NRUNSIZE)
-	j = 0;
+        j = 0;
     }
 
   if (nelem > 0)
@@ -779,8 +777,8 @@ getloadavg (double loadavg[], int nelem)
      it's not supposed to fail.  The first argument is for no
      apparent reason of type `long int *'.  */
   dg_sys_info ((long int *) &load_info,
-	       DG_SYS_INFO_LOAD_INFO_TYPE,
-	       DG_SYS_INFO_LOAD_VERSION_0);
+               DG_SYS_INFO_LOAD_INFO_TYPE,
+               DG_SYS_INFO_LOAD_VERSION_0);
 
   if (nelem > 0)
     loadavg[elem++] = load_info.one_minute;
@@ -824,7 +822,7 @@ getloadavg (double loadavg[], int nelem)
     = (load_ave.tl_lscale == 0
        ? load_ave.tl_avenrun.d[0]
        : (load_ave.tl_avenrun.l[0] / (double) load_ave.tl_lscale));
-# endif	/* OSF_MIPS */
+# endif /* OSF_MIPS */
 
 # if !defined (LDAV_DONE) && (defined (__MSDOS__) || defined (WINDOWS32))
 #  define LDAV_DONE
@@ -844,8 +842,8 @@ getloadavg (double loadavg[], int nelem)
   for (elem = 0; elem < nelem; elem++)
     loadavg[elem]
       = (load_ave.tl_lscale == 0
-	 ? load_ave.tl_avenrun.d[elem]
-	 : (load_ave.tl_avenrun.l[elem] / (double) load_ave.tl_lscale));
+         ? load_ave.tl_avenrun.d[elem]
+         : (load_ave.tl_avenrun.l[elem] / (double) load_ave.tl_lscale));
 # endif /* OSF_ALPHA */
 
 # if ! defined LDAV_DONE && defined __VMS
@@ -872,13 +870,13 @@ getloadavg (double loadavg[], int nelem)
       $DESCRIPTOR (descriptor, "LAV0:");
 #  endif
       if (sys$assign (&descriptor, &channel, 0, 0) & 1)
-	getloadavg_initialized = true;
+        getloadavg_initialized = true;
     }
 
   /* Read the load average vector.  */
   if (getloadavg_initialized
       && !(sys$qiow (0, channel, IO$_READVBLK, 0, 0, 0,
-		     load_ave, 12, 0, 0, 0, 0) & 1))
+                     load_ave, 12, 0, 0, 0, 0) & 1))
     {
       sys$dassgn (channel);
       getloadavg_initialized = false;
@@ -892,7 +890,7 @@ getloadavg (double loadavg[], int nelem)
 
   /* UNIX-specific code -- read the average from /dev/kmem.  */
 
-#  define LDAV_PRIVILEGED		/* This code requires special installation.  */
+#  define LDAV_PRIVILEGED               /* This code requires special installation.  */
 
   LOAD_AVE_TYPE load_ave[3];
 
@@ -900,7 +898,7 @@ getloadavg (double loadavg[], int nelem)
   if (offset == 0)
     {
 #  ifndef sgi
-#   ifndef NLIST_STRUCT
+#   if ! defined NLIST_STRUCT || ! defined N_NAME_POINTER
       strcpy (nl[0].n_name, LDAV_SYMBOL);
       strcpy (nl[1].n_name, "");
 #   else /* NLIST_STRUCT */
@@ -916,25 +914,25 @@ getloadavg (double loadavg[], int nelem)
 #   ifndef SUNOS_5
       if (
 #    if !(defined (_AIX) && !defined (ps2))
-	  nlist (KERNEL_FILE, nl)
+          nlist (KERNEL_FILE, nl)
 #    else  /* _AIX */
-	  knlist (nl, 1, sizeof (nl[0]))
+          knlist (nl, 1, sizeof (nl[0]))
 #    endif
-	  >= 0)
-	  /* Omit "&& nl[0].n_type != 0 " -- it breaks on Sun386i.  */
-	  {
+          >= 0)
+          /* Omit "&& nl[0].n_type != 0 " -- it breaks on Sun386i.  */
+          {
 #    ifdef FIXUP_KERNEL_SYMBOL_ADDR
-	    FIXUP_KERNEL_SYMBOL_ADDR (nl);
+            FIXUP_KERNEL_SYMBOL_ADDR (nl);
 #    endif
-	    offset = nl[0].n_value;
-	  }
+            offset = nl[0].n_value;
+          }
 #   endif /* !SUNOS_5 */
 #  else  /* sgi */
       int ldav_off;
 
       ldav_off = sysmp (MP_KERNADDR, MPKA_AVENRUN);
       if (ldav_off != -1)
-	offset = (long int) ldav_off & 0x7fffffff;
+        offset = (long int) ldav_off & 0x7fffffff;
 #  endif /* sgi */
     }
 
@@ -944,23 +942,23 @@ getloadavg (double loadavg[], int nelem)
 #  ifndef SUNOS_5
       channel = open ("/dev/kmem", O_RDONLY);
       if (channel >= 0)
-	{
-	  /* Set the channel to close on exec, so it does not
-	     litter any child's descriptor table.  */
-	  set_cloexec_flag (channel, true);
-	  getloadavg_initialized = true;
-	}
+        {
+          /* Set the channel to close on exec, so it does not
+             litter any child's descriptor table.  */
+          set_cloexec_flag (channel, true);
+          getloadavg_initialized = true;
+        }
 #  else /* SUNOS_5 */
       /* We pass 0 for the kernel, corefile, and swapfile names
-	 to use the currently running kernel.  */
+         to use the currently running kernel.  */
       kd = kvm_open (0, 0, 0, O_RDONLY, 0);
       if (kd != 0)
-	{
-	  /* nlist the currently running kernel.  */
-	  kvm_nlist (kd, nl);
-	  offset = nl[0].n_value;
-	  getloadavg_initialized = true;
-	}
+        {
+          /* nlist the currently running kernel.  */
+          kvm_nlist (kd, nl);
+          offset = nl[0].n_value;
+          getloadavg_initialized = true;
+        }
 #  endif /* SUNOS_5 */
     }
 
@@ -970,19 +968,19 @@ getloadavg (double loadavg[], int nelem)
       /* Try to read the load.  */
 #  ifndef SUNOS_5
       if (lseek (channel, offset, 0) == -1L
-	  || read (channel, (char *) load_ave, sizeof (load_ave))
-	  != sizeof (load_ave))
-	{
-	  close (channel);
-	  getloadavg_initialized = false;
-	}
+          || read (channel, (char *) load_ave, sizeof (load_ave))
+          != sizeof (load_ave))
+        {
+          close (channel);
+          getloadavg_initialized = false;
+        }
 #  else  /* SUNOS_5 */
       if (kvm_read (kd, offset, (char *) load_ave, sizeof (load_ave))
-	  != sizeof (load_ave))
-	{
-	  kvm_close (kd);
-	  getloadavg_initialized = false;
-	}
+          != sizeof (load_ave))
+        {
+          kvm_close (kd);
+          getloadavg_initialized = false;
+        }
 #  endif /* SUNOS_5 */
     }
 
@@ -1026,24 +1024,24 @@ main (int argc, char **argv)
       double avg[3];
       int loads;
 
-      errno = 0;		/* Don't be misled if it doesn't set errno.  */
+      errno = 0;                /* Don't be misled if it doesn't set errno.  */
       loads = getloadavg (avg, 3);
       if (loads == -1)
-	{
-	  perror ("Error getting load average");
-	  return EXIT_FAILURE;
-	}
+        {
+          perror ("Error getting load average");
+          return EXIT_FAILURE;
+        }
       if (loads > 0)
-	printf ("1-minute: %f  ", avg[0]);
+        printf ("1-minute: %f  ", avg[0]);
       if (loads > 1)
-	printf ("5-minute: %f  ", avg[1]);
+        printf ("5-minute: %f  ", avg[1]);
       if (loads > 2)
-	printf ("15-minute: %f  ", avg[2]);
+        printf ("15-minute: %f  ", avg[2]);
       if (loads > 0)
-	putchar ('\n');
+        putchar ('\n');
 
       if (naptime == 0)
-	break;
+        break;
       sleep (naptime);
     }
 

gl/getopt.in.h

@@ -1,6 +1,6 @@
 /* Declarations for getopt.
-   Copyright (C) 1989-1994,1996-1999,2001,2003,2004,2005,2006,2007
-   Free Software Foundation, Inc.
+   Copyright (C) 1989-1994, 1996-1999, 2001, 2003-2007, 2009-2010 Free Software
+   Foundation, Inc.
    This file is part of the GNU C Library.
 
    This program is free software: you can redistribute it and/or modify
@@ -16,24 +16,42 @@
    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
-#ifndef _GETOPT_H
+#ifndef _GL_GETOPT_H
+
+#if __GNUC__ >= 3
+@PRAGMA_SYSTEM_HEADER@
+#endif
+
+/* The include_next requires a split double-inclusion guard.  We must
+   also inform the replacement unistd.h to not recursively use
+   <getopt.h>; our definitions will be present soon enough.  */
+#if @HAVE_GETOPT_H@
+# define _GL_SYSTEM_GETOPT
+# @INCLUDE_NEXT@ @NEXT_GETOPT_H@
+# undef _GL_SYSTEM_GETOPT
+#endif
+
+#ifndef _GL_GETOPT_H
 
 #ifndef __need_getopt
-# define _GETOPT_H 1
+# define _GL_GETOPT_H 1
 #endif
 
 /* Standalone applications should #define __GETOPT_PREFIX to an
    identifier that prefixes the external functions and variables
    defined in this header.  When this happens, include the
    headers that might declare getopt so that they will not cause
-   confusion if included after this file.  Then systematically rename
+   confusion if included after this file (if the system had <getopt.h>,
+   we have already included it).  Then systematically rename
    identifiers so that they do not collide with the system functions
    and variables.  Renaming avoids problems with some compilers and
    linkers.  */
 #if defined __GETOPT_PREFIX && !defined __need_getopt
-# include <stdlib.h>
-# include <stdio.h>
-# include <unistd.h>
+# if !@HAVE_GETOPT_H@
+#  include <stdlib.h>
+#  include <stdio.h>
+#  include <unistd.h>
+# endif
 # undef __need_getopt
 # undef getopt
 # undef getopt_long
@@ -42,6 +60,7 @@
 # undef opterr
 # undef optind
 # undef optopt
+# undef option
 # define __GETOPT_CONCAT(x, y) x ## y
 # define __GETOPT_XCONCAT(x, y) __GETOPT_CONCAT (x, y)
 # define __GETOPT_ID(y) __GETOPT_XCONCAT (__GETOPT_PREFIX, y)
@@ -52,6 +71,8 @@
 # define opterr __GETOPT_ID (opterr)
 # define optind __GETOPT_ID (optind)
 # define optopt __GETOPT_ID (optopt)
+# define option __GETOPT_ID (option)
+# define _getopt_internal __GETOPT_ID (getopt_internal)
 #endif
 
 /* Standalone applications get correct prototypes for getopt_long and
@@ -94,12 +115,14 @@
 #  define __GNUC_PREREQ(maj, min) (0)
 # endif
 # if defined __cplusplus && __GNUC_PREREQ (2,8)
-#  define __THROW	throw ()
+#  define __THROW       throw ()
 # else
 #  define __THROW
 # endif
 #endif
 
+/* The definition of _GL_ARG_NONNULL is copied here.  */
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -142,9 +165,9 @@ extern int optopt;
    zero.
 
    The field `has_arg' is:
-   no_argument		(or 0) if the option does not take an argument,
-   required_argument	(or 1) if the option requires an argument,
-   optional_argument	(or 2) if the option takes an optional argument.
+   no_argument          (or 0) if the option does not take an argument,
+   required_argument    (or 1) if the option requires an argument,
+   optional_argument    (or 2) if the option takes an optional argument.
 
    If the field `flag' is not NULL, it points to a variable that is set
    to the value given in the field `val' when the option is found, but
@@ -169,10 +192,10 @@ struct option
 
 /* Names for the values of the `has_arg' field of `struct option'.  */
 
-# define no_argument		0
-# define required_argument	1
-# define optional_argument	2
-#endif	/* need getopt */
+# define no_argument            0
+# define required_argument      1
+# define optional_argument      2
+#endif  /* need getopt */
 
 
 /* Get definitions and prototypes for functions to process the
@@ -201,17 +224,17 @@ struct option
    the environment, then do not permute arguments.  */
 
 extern int getopt (int ___argc, char *const *___argv, const char *__shortopts)
-       __THROW;
+       __THROW _GL_ARG_NONNULL ((2, 3));
 
 #ifndef __need_getopt
 extern int getopt_long (int ___argc, char *__getopt_argv_const *___argv,
-			const char *__shortopts,
-		        const struct option *__longopts, int *__longind)
-       __THROW;
+                        const char *__shortopts,
+                        const struct option *__longopts, int *__longind)
+       __THROW _GL_ARG_NONNULL ((2, 3));
 extern int getopt_long_only (int ___argc, char *__getopt_argv_const *___argv,
-			     const char *__shortopts,
-		             const struct option *__longopts, int *__longind)
-       __THROW;
+                             const char *__shortopts,
+                             const struct option *__longopts, int *__longind)
+       __THROW _GL_ARG_NONNULL ((2, 3));
 
 #endif
 
@@ -223,3 +246,4 @@ extern int getopt_long_only (int ___argc, char *__getopt_argv_const *___argv,
 #undef __need_getopt
 
 #endif /* getopt.h */
+#endif /* getopt.h */

gl/getopt1.c

@@ -1,6 +1,6 @@
 /* getopt_long and getopt_long_only entry points for GNU getopt.
-   Copyright (C) 1987,88,89,90,91,92,93,94,96,97,98,2004,2006,2009
-     Free Software Foundation, Inc.
+   Copyright (C) 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1996, 1997,
+   1998, 2004, 2006, 2009, 2010 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    This program is free software: you can redistribute it and/or modify
@@ -32,25 +32,25 @@
 #include <stdlib.h>
 #endif
 
-#ifndef	NULL
+#ifndef NULL
 #define NULL 0
 #endif
 
 int
 getopt_long (int argc, char *__getopt_argv_const *argv, const char *options,
-	     const struct option *long_options, int *opt_index)
+             const struct option *long_options, int *opt_index)
 {
   return _getopt_internal (argc, (char **) argv, options, long_options,
-			   opt_index, 0, 0);
+                           opt_index, 0, 0);
 }
 
 int
 _getopt_long_r (int argc, char **argv, const char *options,
-		const struct option *long_options, int *opt_index,
-		struct _getopt_data *d)
+                const struct option *long_options, int *opt_index,
+                struct _getopt_data *d)
 {
   return _getopt_internal_r (argc, argv, options, long_options, opt_index,
-			     0, 0, d);
+                             0, d, 0);
 }
 
 /* Like getopt_long, but '-' as well as '--' can indicate a long option.
@@ -60,20 +60,20 @@ _getopt_long_r (int argc, char **argv, const char *options,
 
 int
 getopt_long_only (int argc, char *__getopt_argv_const *argv,
-		  const char *options,
-		  const struct option *long_options, int *opt_index)
+                  const char *options,
+                  const struct option *long_options, int *opt_index)
 {
   return _getopt_internal (argc, (char **) argv, options, long_options,
-			   opt_index, 1, 0);
+                           opt_index, 1, 0);
 }
 
 int
 _getopt_long_only_r (int argc, char **argv, const char *options,
-		     const struct option *long_options, int *opt_index,
-		     struct _getopt_data *d)
+                     const struct option *long_options, int *opt_index,
+                     struct _getopt_data *d)
 {
   return _getopt_internal_r (argc, argv, options, long_options, opt_index,
-			     1, 0, d);
+                             1, d, 0);
 }
 
 
@@ -93,74 +93,74 @@ main (int argc, char **argv)
       int option_index = 0;
       static const struct option long_options[] =
       {
-	{"add", 1, 0, 0},
-	{"append", 0, 0, 0},
-	{"delete", 1, 0, 0},
-	{"verbose", 0, 0, 0},
-	{"create", 0, 0, 0},
-	{"file", 1, 0, 0},
-	{0, 0, 0, 0}
+        {"add", 1, 0, 0},
+        {"append", 0, 0, 0},
+        {"delete", 1, 0, 0},
+        {"verbose", 0, 0, 0},
+        {"create", 0, 0, 0},
+        {"file", 1, 0, 0},
+        {0, 0, 0, 0}
       };
 
       c = getopt_long (argc, argv, "abc:d:0123456789",
-		       long_options, &option_index);
+                       long_options, &option_index);
       if (c == -1)
-	break;
+        break;
 
       switch (c)
-	{
-	case 0:
-	  printf ("option %s", long_options[option_index].name);
-	  if (optarg)
-	    printf (" with arg %s", optarg);
-	  printf ("\n");
-	  break;
-
-	case '0':
-	case '1':
-	case '2':
-	case '3':
-	case '4':
-	case '5':
-	case '6':
-	case '7':
-	case '8':
-	case '9':
-	  if (digit_optind != 0 && digit_optind != this_option_optind)
-	    printf ("digits occur in two different argv-elements.\n");
-	  digit_optind = this_option_optind;
-	  printf ("option %c\n", c);
-	  break;
-
-	case 'a':
-	  printf ("option a\n");
-	  break;
-
-	case 'b':
-	  printf ("option b\n");
-	  break;
-
-	case 'c':
-	  printf ("option c with value `%s'\n", optarg);
-	  break;
-
-	case 'd':
-	  printf ("option d with value `%s'\n", optarg);
-	  break;
-
-	case '?':
-	  break;
-
-	default:
-	  printf ("?? getopt returned character code 0%o ??\n", c);
-	}
+        {
+        case 0:
+          printf ("option %s", long_options[option_index].name);
+          if (optarg)
+            printf (" with arg %s", optarg);
+          printf ("\n");
+          break;
+
+        case '0':
+        case '1':
+        case '2':
+        case '3':
+        case '4':
+        case '5':
+        case '6':
+        case '7':
+        case '8':
+        case '9':
+          if (digit_optind != 0 && digit_optind != this_option_optind)
+            printf ("digits occur in two different argv-elements.\n");
+          digit_optind = this_option_optind;
+          printf ("option %c\n", c);
+          break;
+
+        case 'a':
+          printf ("option a\n");
+          break;
+
+        case 'b':
+          printf ("option b\n");
+          break;
+
+        case 'c':
+          printf ("option c with value `%s'\n", optarg);
+          break;
+
+        case 'd':
+          printf ("option d with value `%s'\n", optarg);
+          break;
+
+        case '?':
+          break;
+
+        default:
+          printf ("?? getopt returned character code 0%o ??\n", c);
+        }
     }
 
   if (optind < argc)
     {
       printf ("non-option ARGV-elements: ");
       while (optind < argc)
-	printf ("%s ", argv[optind++]);
+        printf ("%s ", argv[optind++]);
       printf ("\n");
     }
 

gl/getopt_int.h

@@ -1,6 +1,6 @@
 /* Internal declarations for getopt.
-   Copyright (C) 1989-1994,1996-1999,2001,2003,2004
-   Free Software Foundation, Inc.
+   Copyright (C) 1989-1994, 1996-1999, 2001, 2003-2004, 2009-2010 Free Software
+   Foundation, Inc.
    This file is part of the GNU C Library.
 
    This program is free software: you can redistribute it and/or modify
@@ -17,12 +17,14 @@
    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #ifndef _GETOPT_INT_H
-#define _GETOPT_INT_H	1
+#define _GETOPT_INT_H   1
+
+#include <getopt.h>
 
 extern int _getopt_internal (int ___argc, char **___argv,
-			     const char *__shortopts,
-		             const struct option *__longopts, int *__longind,
-			     int __long_only, int __posixly_correct);
+                             const char *__shortopts,
+                             const struct option *__longopts, int *__longind,
+                             int __long_only, int __posixly_correct);
 
 
 /* Reentrant versions which can handle parsing multiple argument
@@ -108,23 +110,23 @@ struct _getopt_data
 
 /* The initializer is necessary to set OPTIND and OPTERR to their
    default values and to clear the initialization flag.  */
-#define _GETOPT_DATA_INITIALIZER	{ 1, 1 }
+#define _GETOPT_DATA_INITIALIZER        { 1, 1 }
 
 extern int _getopt_internal_r (int ___argc, char **___argv,
-			       const char *__shortopts,
-			       const struct option *__longopts, int *__longind,
-			       int __long_only, int __posixly_correct,
-			       struct _getopt_data *__data);
+                               const char *__shortopts,
+                               const struct option *__longopts, int *__longind,
+                               int __long_only, struct _getopt_data *__data,
+                               int __posixly_correct);
 
 extern int _getopt_long_r (int ___argc, char **___argv,
-			   const char *__shortopts,
-			   const struct option *__longopts, int *__longind,
-			   struct _getopt_data *__data);
+                           const char *__shortopts,
+                           const struct option *__longopts, int *__longind,
+                           struct _getopt_data *__data);
 
 extern int _getopt_long_only_r (int ___argc, char **___argv,
-				const char *__shortopts,
-				const struct option *__longopts,
-				int *__longind,
-				struct _getopt_data *__data);
+                                const char *__shortopts,
+                                const struct option *__longopts,
+                                int *__longind,
+                                struct _getopt_data *__data);
 
 #endif /* getopt_int.h */

gl/gettext.h

@@ -1,5 +1,6 @@
 /* Convenience header for conditional use of GNU <libintl.h>.
-   Copyright (C) 1995-1998, 2000-2002, 2004-2006, 2009 Free Software Foundation, Inc.
+   Copyright (C) 1995-1998, 2000-2002, 2004-2006, 2009-2010 Free Software
+   Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -80,7 +81,7 @@
     ((void) (Domainname), ngettext (Msgid1, Msgid2, N))
 # undef dcngettext
 # define dcngettext(Domainname, Msgid1, Msgid2, N, Category) \
-    ((void) (Category), dngettext(Domainname, Msgid1, Msgid2, N))
+    ((void) (Category), dngettext (Domainname, Msgid1, Msgid2, N))
 # undef textdomain
 # define textdomain(Domainname) ((const char *) (Domainname))
 # undef bindtextdomain
@@ -140,8 +141,8 @@ inline
 #endif
 static const char *
 pgettext_aux (const char *domain,
-	      const char *msg_ctxt_id, const char *msgid,
-	      int category)
+              const char *msg_ctxt_id, const char *msgid,
+              int category)
 {
   const char *translation = dcgettext (domain, msg_ctxt_id, category);
   if (translation == msg_ctxt_id)
@@ -159,9 +160,9 @@ inline
 #endif
 static const char *
 npgettext_aux (const char *domain,
-	       const char *msg_ctxt_id, const char *msgid,
-	       const char *msgid_plural, unsigned long int n,
-	       int category)
+               const char *msg_ctxt_id, const char *msgid,
+               const char *msgid_plural, unsigned long int n,
+               int category)
 {
   const char *translation =
     dcngettext (domain, msg_ctxt_id, msgid_plural, n, category);
@@ -199,8 +200,8 @@ inline
 #endif
 static const char *
 dcpgettext_expr (const char *domain,
-		 const char *msgctxt, const char *msgid,
-		 int category)
+                 const char *msgctxt, const char *msgid,
+                 int category)
 {
   size_t msgctxt_len = strlen (msgctxt) + 1;
   size_t msgid_len = strlen (msgid) + 1;
@@ -222,10 +223,10 @@ dcpgettext_expr (const char *domain,
       translation = dcgettext (domain, msg_ctxt_id, category);
 #if !_LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS
       if (msg_ctxt_id != buf)
-	free (msg_ctxt_id);
+        free (msg_ctxt_id);
 #endif
       if (translation != msg_ctxt_id)
-	return translation;
+        return translation;
     }
   return msgid;
 }
@@ -244,9 +245,9 @@ inline
 #endif
 static const char *
 dcnpgettext_expr (const char *domain,
-		  const char *msgctxt, const char *msgid,
-		  const char *msgid_plural, unsigned long int n,
-		  int category)
+                  const char *msgctxt, const char *msgid,
+                  const char *msgid_plural, unsigned long int n,
+                  int category)
 {
   size_t msgctxt_len = strlen (msgctxt) + 1;
   size_t msgid_len = strlen (msgid) + 1;
@@ -268,10 +269,10 @@ dcnpgettext_expr (const char *domain,
       translation = dcngettext (domain, msg_ctxt_id, msgid_plural, n, category);
 #if !_LIBGETTEXT_HAVE_VARIABLE_SIZE_ARRAYS
       if (msg_ctxt_id != buf)
-	free (msg_ctxt_id);
+        free (msg_ctxt_id);
 #endif
       if (!(translation == msg_ctxt_id || translation == msgid_plural))
-	return translation;
+        return translation;
     }
   return (n == 1 ? msgid : msgid_plural);
 }

gl/inet_ntop.c

@@ -1,6 +1,6 @@
 /* inet_ntop.c -- convert IPv4 and IPv6 addresses from binary to text form
 
-   Copyright (C) 2005, 2006, 2008  Free Software Foundation, Inc.
+   Copyright (C) 2005-2006, 2008-2010 Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -42,10 +42,6 @@
 #include <string.h>
 #include <errno.h>
 
-#ifndef EAFNOSUPPORT
-# define EAFNOSUPPORT EINVAL
-#endif
-
 #define NS_IN6ADDRSZ 16
 #define NS_INT16SZ 2
 
@@ -63,15 +59,15 @@ static const char *inet_ntop6 (const unsigned char *src, char *dst, socklen_t si
 
 /* char *
  * inet_ntop(af, src, dst, size)
- *	convert a network format address to presentation format.
+ *      convert a network format address to presentation format.
  * return:
- *	pointer to presentation format address (`dst'), or NULL (see errno).
+ *      pointer to presentation format address (`dst'), or NULL (see errno).
  * author:
- *	Paul Vixie, 1996.
+ *      Paul Vixie, 1996.
  */
 const char *
 inet_ntop (int af, const void *restrict src,
-	   char *restrict dst, socklen_t cnt)
+           char *restrict dst, socklen_t cnt)
 {
   switch (af)
     {
@@ -94,14 +90,14 @@ inet_ntop (int af, const void *restrict src,
 
 /* const char *
  * inet_ntop4(src, dst, size)
- *	format an IPv4 address
+ *      format an IPv4 address
  * return:
- *	`dst' (as a const)
+ *      `dst' (as a const)
  * notes:
- *	(1) uses no statics
- *	(2) takes a u_char* not an in_addr as input
+ *      (1) uses no statics
+ *      (2) takes a u_char* not an in_addr as input
  * author:
- *	Paul Vixie, 1996.
+ *      Paul Vixie, 1996.
  */
 static const char *
 inet_ntop4 (const unsigned char *src, char *dst, socklen_t size)
@@ -126,9 +122,9 @@ inet_ntop4 (const unsigned char *src, char *dst, socklen_t size)
 
 /* const char *
  * inet_ntop6(src, dst, size)
- *	convert IPv6 binary address into presentation (printable) format
+ *      convert IPv6 binary address into presentation (printable) format
  * author:
- *	Paul Vixie, 1996.
+ *      Paul Vixie, 1996.
  */
 static const char *
 inet_ntop6 (const unsigned char *src, char *dst, socklen_t size)
@@ -161,26 +157,26 @@ inet_ntop6 (const unsigned char *src, char *dst, socklen_t size)
   for (i = 0; i < (NS_IN6ADDRSZ / NS_INT16SZ); i++)
     {
       if (words[i] == 0)
-	{
-	  if (cur.base == -1)
-	    cur.base = i, cur.len = 1;
-	  else
-	    cur.len++;
-	}
+        {
+          if (cur.base == -1)
+            cur.base = i, cur.len = 1;
+          else
+            cur.len++;
+        }
       else
-	{
-	  if (cur.base != -1)
-	    {
-	      if (best.base == -1 || cur.len > best.len)
-		best = cur;
-	      cur.base = -1;
-	    }
-	}
+        {
+          if (cur.base != -1)
+            {
+              if (best.base == -1 || cur.len > best.len)
+                best = cur;
+              cur.base = -1;
+            }
+        }
     }
   if (cur.base != -1)
     {
       if (best.base == -1 || cur.len > best.len)
-	best = cur;
+        best = cur;
     }
   if (best.base != -1 && best.len < 2)
     best.base = -1;
@@ -193,28 +189,28 @@ inet_ntop6 (const unsigned char *src, char *dst, socklen_t size)
     {
       /* Are we inside the best run of 0x00's? */
       if (best.base != -1 && i >= best.base && i < (best.base + best.len))
-	{
-	  if (i == best.base)
-	    *tp++ = ':';
-	  continue;
-	}
+        {
+          if (i == best.base)
+            *tp++ = ':';
+          continue;
+        }
       /* Are we following an initial run of 0x00s or any real hex? */
       if (i != 0)
-	*tp++ = ':';
+        *tp++ = ':';
       /* Is this address an encapsulated IPv4? */
       if (i == 6 && best.base == 0 &&
-	  (best.len == 6 || (best.len == 5 && words[5] == 0xffff)))
-	{
-	  if (!inet_ntop4 (src + 12, tp, sizeof tmp - (tp - tmp)))
-	    return (NULL);
-	  tp += strlen (tp);
-	  break;
-	}
+          (best.len == 6 || (best.len == 5 && words[5] == 0xffff)))
+        {
+          if (!inet_ntop4 (src + 12, tp, sizeof tmp - (tp - tmp)))
+            return (NULL);
+          tp += strlen (tp);
+          break;
+        }
       {
-	int len = sprintf (tp, "%x", words[i]);
-	if (len < 0)
-	  return NULL;
-	tp += len;
+        int len = sprintf (tp, "%x", words[i]);
+        if (len < 0)
+          return NULL;
+        tp += len;
       }
     }
   /* Was it a trailing run of 0x00's? */

gl/intprops.h

@@ -1,6 +1,7 @@
 /* intprops.h -- properties of integer types
 
-   Copyright (C) 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
+   Copyright (C) 2001, 2002, 2003, 2004, 2005, 2009, 2010 Free Software
+   Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -17,40 +18,43 @@
 
 /* Written by Paul Eggert.  */
 
-#include <limits.h>
+#ifndef GL_INTPROPS_H
+# define GL_INTPROPS_H
+
+# include <limits.h>
 
 /* The extra casts in the following macros work around compiler bugs,
    e.g., in Cray C 5.0.3.0.  */
 
 /* True if the arithmetic type T is an integer type.  bool counts as
    an integer.  */
-#define TYPE_IS_INTEGER(t) ((t) 1.5 == 1)
+# define TYPE_IS_INTEGER(t) ((t) 1.5 == 1)
 
 /* True if negative values of the signed integer type T use two's
    complement, ones' complement, or signed magnitude representation,
    respectively.  Much GNU code assumes two's complement, but some
    people like to be portable to all possible C hosts.  */
-#define TYPE_TWOS_COMPLEMENT(t) ((t) ~ (t) 0 == (t) -1)
-#define TYPE_ONES_COMPLEMENT(t) ((t) ~ (t) 0 == 0)
-#define TYPE_SIGNED_MAGNITUDE(t) ((t) ~ (t) 0 < (t) -1)
+# define TYPE_TWOS_COMPLEMENT(t) ((t) ~ (t) 0 == (t) -1)
+# define TYPE_ONES_COMPLEMENT(t) ((t) ~ (t) 0 == 0)
+# define TYPE_SIGNED_MAGNITUDE(t) ((t) ~ (t) 0 < (t) -1)
 
 /* True if the arithmetic type T is signed.  */
-#define TYPE_SIGNED(t) (! ((t) 0 < (t) -1))
+# define TYPE_SIGNED(t) (! ((t) 0 < (t) -1))
 
 /* The maximum and minimum values for the integer type T.  These
    macros have undefined behavior if T is signed and has padding bits.
    If this is a problem for you, please let us know how to fix it for
    your host.  */
-#define TYPE_MINIMUM(t) \
+# define TYPE_MINIMUM(t) \
   ((t) (! TYPE_SIGNED (t) \
-	? (t) 0 \
-	: TYPE_SIGNED_MAGNITUDE (t) \
-	? ~ (t) 0 \
-	: ~ (t) 0 << (sizeof (t) * CHAR_BIT - 1)))
-#define TYPE_MAXIMUM(t) \
+        ? (t) 0 \
+        : TYPE_SIGNED_MAGNITUDE (t) \
+        ? ~ (t) 0 \
+        : ~ (t) 0 << (sizeof (t) * CHAR_BIT - 1)))
+# define TYPE_MAXIMUM(t) \
   ((t) (! TYPE_SIGNED (t) \
-	? (t) -1 \
-	: ~ (~ (t) 0 << (sizeof (t) * CHAR_BIT - 1))))
+        ? (t) -1 \
+        : ~ (~ (t) 0 << (sizeof (t) * CHAR_BIT - 1))))
 
 /* Return zero if T can be determined to be an unsigned type.
    Otherwise, return 1.
@@ -58,20 +62,22 @@
    tighter bound.  Otherwise, it overestimates the true bound by one byte
    when applied to unsigned types of size 2, 4, 16, ... bytes.
    The symbol signed_type_or_expr__ is private to this header file.  */
-#if __GNUC__ >= 2
-# define signed_type_or_expr__(t) TYPE_SIGNED (__typeof__ (t))
-#else
-# define signed_type_or_expr__(t) 1
-#endif
+# if __GNUC__ >= 2
+#  define signed_type_or_expr__(t) TYPE_SIGNED (__typeof__ (t))
+# else
+#  define signed_type_or_expr__(t) 1
+# endif
 
 /* Bound on length of the string representing an integer type or expression T.
    Subtract 1 for the sign bit if T is signed; log10 (2.0) < 146/485;
    add 1 for integer division truncation; add 1 more for a minus sign
    if needed.  */
-#define INT_STRLEN_BOUND(t) \
+# define INT_STRLEN_BOUND(t) \
   ((sizeof (t) * CHAR_BIT - signed_type_or_expr__ (t)) * 146 / 485 \
    + signed_type_or_expr__ (t) + 1)
 
 /* Bound on buffer size needed to represent an integer type or expression T,
    including the terminating null.  */
-#define INT_BUFSIZE_BOUND(t) (INT_STRLEN_BOUND (t) + 1)
+# define INT_BUFSIZE_BOUND(t) (INT_STRLEN_BOUND (t) + 1)
+
+#endif /* GL_INTPROPS_H */

gl/langinfo.in.h

@@ -0,0 +1,162 @@
+/* Substitute for and wrapper around <langinfo.h>.
+   Copyright (C) 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+
+/*
+ * POSIX <langinfo.h> for platforms that lack it or have an incomplete one.
+ * <http://www.opengroup.org/onlinepubs/9699919799/basedefs/langinfo.h.html>
+ */
+
+#ifndef _GL_LANGINFO_H
+
+#if __GNUC__ >= 3
+@PRAGMA_SYSTEM_HEADER@
+#endif
+
+/* The include_next requires a split double-inclusion guard.  */
+#if @HAVE_LANGINFO_H@
+# @INCLUDE_NEXT@ @NEXT_LANGINFO_H@
+#endif
+
+#ifndef _GL_LANGINFO_H
+#define _GL_LANGINFO_H
+
+
+#if !@HAVE_LANGINFO_H@
+
+/* A platform that lacks <langinfo.h>.  */
+
+/* Assume that it also lacks <nl_types.h> and the nl_item type.  */
+typedef int nl_item;
+
+/* nl_langinfo items of the LC_CTYPE category */
+# define CODESET     10000
+/* nl_langinfo items of the LC_NUMERIC category */
+# define RADIXCHAR   10001
+# define THOUSEP     10002
+/* nl_langinfo items of the LC_TIME category */
+# define D_T_FMT     10003
+# define D_FMT       10004
+# define T_FMT       10005
+# define T_FMT_AMPM  10006
+# define AM_STR      10007
+# define PM_STR      10008
+# define DAY_1       10009
+# define DAY_2       (DAY_1 + 1)
+# define DAY_3       (DAY_1 + 2)
+# define DAY_4       (DAY_1 + 3)
+# define DAY_5       (DAY_1 + 4)
+# define DAY_6       (DAY_1 + 5)
+# define DAY_7       (DAY_1 + 6)
+# define ABDAY_1     10016
+# define ABDAY_2     (ABDAY_1 + 1)
+# define ABDAY_3     (ABDAY_1 + 2)
+# define ABDAY_4     (ABDAY_1 + 3)
+# define ABDAY_5     (ABDAY_1 + 4)
+# define ABDAY_6     (ABDAY_1 + 5)
+# define ABDAY_7     (ABDAY_1 + 6)
+# define MON_1       10023
+# define MON_2       (MON_1 + 1)
+# define MON_3       (MON_1 + 2)
+# define MON_4       (MON_1 + 3)
+# define MON_5       (MON_1 + 4)
+# define MON_6       (MON_1 + 5)
+# define MON_7       (MON_1 + 6)
+# define MON_8       (MON_1 + 7)
+# define MON_9       (MON_1 + 8)
+# define MON_10      (MON_1 + 9)
+# define MON_11      (MON_1 + 10)
+# define MON_12      (MON_1 + 11)
+# define ABMON_1     10035
+# define ABMON_2     (ABMON_1 + 1)
+# define ABMON_3     (ABMON_1 + 2)
+# define ABMON_4     (ABMON_1 + 3)
+# define ABMON_5     (ABMON_1 + 4)
+# define ABMON_6     (ABMON_1 + 5)
+# define ABMON_7     (ABMON_1 + 6)
+# define ABMON_8     (ABMON_1 + 7)
+# define ABMON_9     (ABMON_1 + 8)
+# define ABMON_10    (ABMON_1 + 9)
+# define ABMON_11    (ABMON_1 + 10)
+# define ABMON_12    (ABMON_1 + 11)
+# define ERA         10047
+# define ERA_D_FMT   10048
+# define ERA_D_T_FMT 10049
+# define ERA_T_FMT   10050
+# define ALT_DIGITS  10051
+/* nl_langinfo items of the LC_MONETARY category */
+# define CRNCYSTR    10052
+/* nl_langinfo items of the LC_MESSAGES category */
+# define YESEXPR     10053
+# define NOEXPR      10054
+
+#else
+
+/* A platform that has <langinfo.h>.  */
+
+# if !@HAVE_LANGINFO_CODESET@
+#  define CODESET     10000
+#  define GNULIB_defined_CODESET 1
+# endif
+
+# if !@HAVE_LANGINFO_ERA@
+#  define ERA         10047
+#  define ERA_D_FMT   10048
+#  define ERA_D_T_FMT 10049
+#  define ERA_T_FMT   10050
+#  define ALT_DIGITS  10051
+#  define GNULIB_defined_ERA 1
+# endif
+
+#endif
+
+/* The definitions of _GL_FUNCDECL_RPL etc. are copied here.  */
+
+/* The definition of _GL_WARN_ON_USE is copied here.  */
+
+/* Declare overridden functions.  */
+
+
+/* Return a piece of locale dependent information.
+   Note: The difference between nl_langinfo (CODESET) and locale_charset ()
+   is that the latter normalizes the encoding names to GNU conventions.  */
+
+#if @GNULIB_NL_LANGINFO@
+# if @REPLACE_NL_LANGINFO@
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#   undef nl_langinfo
+#   define nl_langinfo rpl_nl_langinfo
+#  endif
+_GL_FUNCDECL_RPL (nl_langinfo, char *, (nl_item item));
+_GL_CXXALIAS_RPL (nl_langinfo, char *, (nl_item item));
+# else
+#  if !@HAVE_NL_LANGINFO@
+_GL_FUNCDECL_SYS (nl_langinfo, char *, (nl_item item));
+#  endif
+_GL_CXXALIAS_SYS (nl_langinfo, char *, (nl_item item));
+# endif
+_GL_CXXALIASWARN (nl_langinfo);
+#elif defined GNULIB_POSIXCHECK
+# undef nl_langinfo
+# if HAVE_RAW_DECL_NL_LANGINFO
+_GL_WARN_ON_USE (nl_langinfo, "nl_langinfo is not portable - "
+                 "use gnulib module nl_langinfo for portability");
+# endif
+#endif
+
+
+#endif /* _GL_LANGINFO_H */
+#endif /* _GL_LANGINFO_H */

gl/localcharset.c

@@ -1,6 +1,6 @@
 /* Determine a canonical name for the current locale's character encoding.
 
-   Copyright (C) 2000-2006, 2008-2009 Free Software Foundation, Inc.
+   Copyright (C) 2000-2006, 2008-2010 Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -23,6 +23,7 @@
 /* Specification.  */
 #include "localcharset.h"
 
+#include <fcntl.h>
 #include <stddef.h>
 #include <stdio.h>
 #include <string.h>
@@ -44,6 +45,7 @@
 #endif
 
 #if !defined WIN32_NATIVE
+# include <unistd.h>
 # if HAVE_LANGINFO_CODESET
 #  include <langinfo.h>
 # else
@@ -75,6 +77,11 @@
 # include "configmake.h"
 #endif
 
+/* Define O_NOFOLLOW to 0 on platforms where it does not exist.  */
+#ifndef O_NOFOLLOW
+# define O_NOFOLLOW 0
+#endif
+
 #if defined _WIN32 || defined __WIN32__ || defined __CYGWIN__ || defined __EMX__ || defined __DJGPP__
   /* Win32, Cygwin, OS/2, DOS */
 # define ISSLASH(C) ((C) == '/' || (C) == '\\')
@@ -117,192 +124,219 @@ get_charset_aliases (void)
   if (cp == NULL)
     {
 #if !(defined DARWIN7 || defined VMS || defined WIN32_NATIVE || defined __CYGWIN__)
-      FILE *fp;
       const char *dir;
       const char *base = "charset.alias";
       char *file_name;
 
       /* Make it possible to override the charset.alias location.  This is
-	 necessary for running the testsuite before "make install".  */
+         necessary for running the testsuite before "make install".  */
       dir = getenv ("CHARSETALIASDIR");
       if (dir == NULL || dir[0] == '\0')
-	dir = relocate (LIBDIR);
+        dir = relocate (LIBDIR);
 
       /* Concatenate dir and base into freshly allocated file_name.  */
       {
-	size_t dir_len = strlen (dir);
-	size_t base_len = strlen (base);
-	int add_slash = (dir_len > 0 && !ISSLASH (dir[dir_len - 1]));
-	file_name = (char *) malloc (dir_len + add_slash + base_len + 1);
-	if (file_name != NULL)
-	  {
-	    memcpy (file_name, dir, dir_len);
-	    if (add_slash)
-	      file_name[dir_len] = DIRECTORY_SEPARATOR;
-	    memcpy (file_name + dir_len + add_slash, base, base_len + 1);
-	  }
+        size_t dir_len = strlen (dir);
+        size_t base_len = strlen (base);
+        int add_slash = (dir_len > 0 && !ISSLASH (dir[dir_len - 1]));
+        file_name = (char *) malloc (dir_len + add_slash + base_len + 1);
+        if (file_name != NULL)
+          {
+            memcpy (file_name, dir, dir_len);
+            if (add_slash)
+              file_name[dir_len] = DIRECTORY_SEPARATOR;
+            memcpy (file_name + dir_len + add_slash, base, base_len + 1);
+          }
       }
 
-      if (file_name == NULL || (fp = fopen (file_name, "r")) == NULL)
-	/* Out of memory or file not found, treat it as empty.  */
-	cp = "";
+      if (file_name == NULL)
+        /* Out of memory.  Treat the file as empty.  */
+        cp = "";
       else
-	{
-	  /* Parse the file's contents.  */
-	  char *res_ptr = NULL;
-	  size_t res_size = 0;
-
-	  for (;;)
-	    {
-	      int c;
-	      char buf1[50+1];
-	      char buf2[50+1];
-	      size_t l1, l2;
-	      char *old_res_ptr;
-
-	      c = getc (fp);
-	      if (c == EOF)
-		break;
-	      if (c == '\n' || c == ' ' || c == '\t')
-		continue;
-	      if (c == '#')
-		{
-		  /* Skip comment, to end of line.  */
-		  do
-		    c = getc (fp);
-		  while (!(c == EOF || c == '\n'));
-		  if (c == EOF)
-		    break;
-		  continue;
-		}
-	      ungetc (c, fp);
-	      if (fscanf (fp, "%50s %50s", buf1, buf2) < 2)
-		break;
-	      l1 = strlen (buf1);
-	      l2 = strlen (buf2);
-	      old_res_ptr = res_ptr;
-	      if (res_size == 0)
-		{
-		  res_size = l1 + 1 + l2 + 1;
-		  res_ptr = (char *) malloc (res_size + 1);
-		}
-	      else
-		{
-		  res_size += l1 + 1 + l2 + 1;
-		  res_ptr = (char *) realloc (res_ptr, res_size + 1);
-		}
-	      if (res_ptr == NULL)
-		{
-		  /* Out of memory. */
-		  res_size = 0;
-		  if (old_res_ptr != NULL)
-		    free (old_res_ptr);
-		  break;
-		}
-	      strcpy (res_ptr + res_size - (l2 + 1) - (l1 + 1), buf1);
-	      strcpy (res_ptr + res_size - (l2 + 1), buf2);
-	    }
-	  fclose (fp);
-	  if (res_size == 0)
-	    cp = "";
-	  else
-	    {
-	      *(res_ptr + res_size) = '\0';
-	      cp = res_ptr;
-	    }
-	}
-
-      if (file_name != NULL)
-	free (file_name);
+        {
+          int fd;
+
+          /* Open the file.  Reject symbolic links on platforms that support
+             O_NOFOLLOW.  This is a security feature.  Without it, an attacker
+             could retrieve parts of the contents (namely, the tail of the
+             first line that starts with "* ") of an arbitrary file by placing
+             a symbolic link to that file under the name "charset.alias" in
+             some writable directory and defining the environment variable
+             CHARSETALIASDIR to point to that directory.  */
+          fd = open (file_name,
+                     O_RDONLY | (HAVE_WORKING_O_NOFOLLOW ? O_NOFOLLOW : 0));
+          if (fd < 0)
+            /* File not found.  Treat it as empty.  */
+            cp = "";
+          else
+            {
+              FILE *fp;
+
+              fp = fdopen (fd, "r");
+              if (fp == NULL)
+                {
+                  /* Out of memory.  Treat the file as empty.  */
+                  close (fd);
+                  cp = "";
+                }
+              else
+                {
+                  /* Parse the file's contents.  */
+                  char *res_ptr = NULL;
+                  size_t res_size = 0;
+
+                  for (;;)
+                    {
+                      int c;
+                      char buf1[50+1];
+                      char buf2[50+1];
+                      size_t l1, l2;
+                      char *old_res_ptr;
+
+                      c = getc (fp);
+                      if (c == EOF)
+                        break;
+                      if (c == '\n' || c == ' ' || c == '\t')
+                        continue;
+                      if (c == '#')
+                        {
+                          /* Skip comment, to end of line.  */
+                          do
+                            c = getc (fp);
+                          while (!(c == EOF || c == '\n'));
+                          if (c == EOF)
+                            break;
+                          continue;
+                        }
+                      ungetc (c, fp);
+                      if (fscanf (fp, "%50s %50s", buf1, buf2) < 2)
+                        break;
+                      l1 = strlen (buf1);
+                      l2 = strlen (buf2);
+                      old_res_ptr = res_ptr;
+                      if (res_size == 0)
+                        {
+                          res_size = l1 + 1 + l2 + 1;
+                          res_ptr = (char *) malloc (res_size + 1);
+                        }
+                      else
+                        {
+                          res_size += l1 + 1 + l2 + 1;
+                          res_ptr = (char *) realloc (res_ptr, res_size + 1);
+                        }
+                      if (res_ptr == NULL)
+                        {
+                          /* Out of memory. */
+                          res_size = 0;
+                          if (old_res_ptr != NULL)
+                            free (old_res_ptr);
+                          break;
+                        }
+                      strcpy (res_ptr + res_size - (l2 + 1) - (l1 + 1), buf1);
+                      strcpy (res_ptr + res_size - (l2 + 1), buf2);
+                    }
+                  fclose (fp);
+                  if (res_size == 0)
+                    cp = "";
+                  else
+                    {
+                      *(res_ptr + res_size) = '\0';
+                      cp = res_ptr;
+                    }
+                }
+            }
+
+          free (file_name);
+        }
 
 #else
 
 # if defined DARWIN7
       /* To avoid the trouble of installing a file that is shared by many
-	 GNU packages -- many packaging systems have problems with this --,
-	 simply inline the aliases here.  */
+         GNU packages -- many packaging systems have problems with this --,
+         simply inline the aliases here.  */
       cp = "ISO8859-1" "\0" "ISO-8859-1" "\0"
-	   "ISO8859-2" "\0" "ISO-8859-2" "\0"
-	   "ISO8859-4" "\0" "ISO-8859-4" "\0"
-	   "ISO8859-5" "\0" "ISO-8859-5" "\0"
-	   "ISO8859-7" "\0" "ISO-8859-7" "\0"
-	   "ISO8859-9" "\0" "ISO-8859-9" "\0"
-	   "ISO8859-13" "\0" "ISO-8859-13" "\0"
-	   "ISO8859-15" "\0" "ISO-8859-15" "\0"
-	   "KOI8-R" "\0" "KOI8-R" "\0"
-	   "KOI8-U" "\0" "KOI8-U" "\0"
-	   "CP866" "\0" "CP866" "\0"
-	   "CP949" "\0" "CP949" "\0"
-	   "CP1131" "\0" "CP1131" "\0"
-	   "CP1251" "\0" "CP1251" "\0"
-	   "eucCN" "\0" "GB2312" "\0"
-	   "GB2312" "\0" "GB2312" "\0"
-	   "eucJP" "\0" "EUC-JP" "\0"
-	   "eucKR" "\0" "EUC-KR" "\0"
-	   "Big5" "\0" "BIG5" "\0"
-	   "Big5HKSCS" "\0" "BIG5-HKSCS" "\0"
-	   "GBK" "\0" "GBK" "\0"
-	   "GB18030" "\0" "GB18030" "\0"
-	   "SJIS" "\0" "SHIFT_JIS" "\0"
-	   "ARMSCII-8" "\0" "ARMSCII-8" "\0"
-	   "PT154" "\0" "PT154" "\0"
-	 /*"ISCII-DEV" "\0" "?" "\0"*/
-	   "*" "\0" "UTF-8" "\0";
+           "ISO8859-2" "\0" "ISO-8859-2" "\0"
+           "ISO8859-4" "\0" "ISO-8859-4" "\0"
+           "ISO8859-5" "\0" "ISO-8859-5" "\0"
+           "ISO8859-7" "\0" "ISO-8859-7" "\0"
+           "ISO8859-9" "\0" "ISO-8859-9" "\0"
+           "ISO8859-13" "\0" "ISO-8859-13" "\0"
+           "ISO8859-15" "\0" "ISO-8859-15" "\0"
+           "KOI8-R" "\0" "KOI8-R" "\0"
+           "KOI8-U" "\0" "KOI8-U" "\0"
+           "CP866" "\0" "CP866" "\0"
+           "CP949" "\0" "CP949" "\0"
+           "CP1131" "\0" "CP1131" "\0"
+           "CP1251" "\0" "CP1251" "\0"
+           "eucCN" "\0" "GB2312" "\0"
+           "GB2312" "\0" "GB2312" "\0"
+           "eucJP" "\0" "EUC-JP" "\0"
+           "eucKR" "\0" "EUC-KR" "\0"
+           "Big5" "\0" "BIG5" "\0"
+           "Big5HKSCS" "\0" "BIG5-HKSCS" "\0"
+           "GBK" "\0" "GBK" "\0"
+           "GB18030" "\0" "GB18030" "\0"
+           "SJIS" "\0" "SHIFT_JIS" "\0"
+           "ARMSCII-8" "\0" "ARMSCII-8" "\0"
+           "PT154" "\0" "PT154" "\0"
+         /*"ISCII-DEV" "\0" "?" "\0"*/
+           "*" "\0" "UTF-8" "\0";
 # endif
 
 # if defined VMS
       /* To avoid the troubles of an extra file charset.alias_vms in the
-	 sources of many GNU packages, simply inline the aliases here.  */
+         sources of many GNU packages, simply inline the aliases here.  */
       /* The list of encodings is taken from the OpenVMS 7.3-1 documentation
-	 "Compaq C Run-Time Library Reference Manual for OpenVMS systems"
-	 section 10.7 "Handling Different Character Sets".  */
+         "Compaq C Run-Time Library Reference Manual for OpenVMS systems"
+         section 10.7 "Handling Different Character Sets".  */
       cp = "ISO8859-1" "\0" "ISO-8859-1" "\0"
-	   "ISO8859-2" "\0" "ISO-8859-2" "\0"
-	   "ISO8859-5" "\0" "ISO-8859-5" "\0"
-	   "ISO8859-7" "\0" "ISO-8859-7" "\0"
-	   "ISO8859-8" "\0" "ISO-8859-8" "\0"
-	   "ISO8859-9" "\0" "ISO-8859-9" "\0"
-	   /* Japanese */
-	   "eucJP" "\0" "EUC-JP" "\0"
-	   "SJIS" "\0" "SHIFT_JIS" "\0"
-	   "DECKANJI" "\0" "DEC-KANJI" "\0"
-	   "SDECKANJI" "\0" "EUC-JP" "\0"
-	   /* Chinese */
-	   "eucTW" "\0" "EUC-TW" "\0"
-	   "DECHANYU" "\0" "DEC-HANYU" "\0"
-	   "DECHANZI" "\0" "GB2312" "\0"
-	   /* Korean */
-	   "DECKOREAN" "\0" "EUC-KR" "\0";
+           "ISO8859-2" "\0" "ISO-8859-2" "\0"
+           "ISO8859-5" "\0" "ISO-8859-5" "\0"
+           "ISO8859-7" "\0" "ISO-8859-7" "\0"
+           "ISO8859-8" "\0" "ISO-8859-8" "\0"
+           "ISO8859-9" "\0" "ISO-8859-9" "\0"
+           /* Japanese */
+           "eucJP" "\0" "EUC-JP" "\0"
+           "SJIS" "\0" "SHIFT_JIS" "\0"
+           "DECKANJI" "\0" "DEC-KANJI" "\0"
+           "SDECKANJI" "\0" "EUC-JP" "\0"
+           /* Chinese */
+           "eucTW" "\0" "EUC-TW" "\0"
+           "DECHANYU" "\0" "DEC-HANYU" "\0"
+           "DECHANZI" "\0" "GB2312" "\0"
+           /* Korean */
+           "DECKOREAN" "\0" "EUC-KR" "\0";
 # endif
 
 # if defined WIN32_NATIVE || defined __CYGWIN__
       /* To avoid the troubles of installing a separate file in the same
-	 directory as the DLL and of retrieving the DLL's directory at
-	 runtime, simply inline the aliases here.  */
+         directory as the DLL and of retrieving the DLL's directory at
+         runtime, simply inline the aliases here.  */
 
       cp = "CP936" "\0" "GBK" "\0"
-	   "CP1361" "\0" "JOHAB" "\0"
-	   "CP20127" "\0" "ASCII" "\0"
-	   "CP20866" "\0" "KOI8-R" "\0"
-	   "CP20936" "\0" "GB2312" "\0"
-	   "CP21866" "\0" "KOI8-RU" "\0"
-	   "CP28591" "\0" "ISO-8859-1" "\0"
-	   "CP28592" "\0" "ISO-8859-2" "\0"
-	   "CP28593" "\0" "ISO-8859-3" "\0"
-	   "CP28594" "\0" "ISO-8859-4" "\0"
-	   "CP28595" "\0" "ISO-8859-5" "\0"
-	   "CP28596" "\0" "ISO-8859-6" "\0"
-	   "CP28597" "\0" "ISO-8859-7" "\0"
-	   "CP28598" "\0" "ISO-8859-8" "\0"
-	   "CP28599" "\0" "ISO-8859-9" "\0"
-	   "CP28605" "\0" "ISO-8859-15" "\0"
-	   "CP38598" "\0" "ISO-8859-8" "\0"
-	   "CP51932" "\0" "EUC-JP" "\0"
-	   "CP51936" "\0" "GB2312" "\0"
-	   "CP51949" "\0" "EUC-KR" "\0"
-	   "CP51950" "\0" "EUC-TW" "\0"
-	   "CP54936" "\0" "GB18030" "\0"
-	   "CP65001" "\0" "UTF-8" "\0";
+           "CP1361" "\0" "JOHAB" "\0"
+           "CP20127" "\0" "ASCII" "\0"
+           "CP20866" "\0" "KOI8-R" "\0"
+           "CP20936" "\0" "GB2312" "\0"
+           "CP21866" "\0" "KOI8-RU" "\0"
+           "CP28591" "\0" "ISO-8859-1" "\0"
+           "CP28592" "\0" "ISO-8859-2" "\0"
+           "CP28593" "\0" "ISO-8859-3" "\0"
+           "CP28594" "\0" "ISO-8859-4" "\0"
+           "CP28595" "\0" "ISO-8859-5" "\0"
+           "CP28596" "\0" "ISO-8859-6" "\0"
+           "CP28597" "\0" "ISO-8859-7" "\0"
+           "CP28598" "\0" "ISO-8859-8" "\0"
+           "CP28599" "\0" "ISO-8859-9" "\0"
+           "CP28605" "\0" "ISO-8859-15" "\0"
+           "CP38598" "\0" "ISO-8859-8" "\0"
+           "CP51932" "\0" "EUC-JP" "\0"
+           "CP51936" "\0" "GB2312" "\0"
+           "CP51949" "\0" "EUC-KR" "\0"
+           "CP51950" "\0" "EUC-TW" "\0"
+           "CP54936" "\0" "GB18030" "\0"
+           "CP65001" "\0" "UTF-8" "\0";
 # endif
 #endif
 
@@ -335,7 +369,7 @@ locale_charset (void)
   codeset = nl_langinfo (CODESET);
 
 #  ifdef __CYGWIN__
-  /* Cygwin 2006 does not have locales.  nl_langinfo (CODESET) always
+  /* Cygwin 1.5.x does not have locales.  nl_langinfo (CODESET) always
      returns "US-ASCII".  As long as this is not fixed, return the suffix
      of the locale name from the environment variables (if present) or
      the codepage as a number.  */
@@ -346,36 +380,46 @@ locale_charset (void)
 
       locale = getenv ("LC_ALL");
       if (locale == NULL || locale[0] == '\0')
-	{
-	  locale = getenv ("LC_CTYPE");
-	  if (locale == NULL || locale[0] == '\0')
-	    locale = getenv ("LANG");
-	}
+        {
+          locale = getenv ("LC_CTYPE");
+          if (locale == NULL || locale[0] == '\0')
+            locale = getenv ("LANG");
+        }
       if (locale != NULL && locale[0] != '\0')
-	{
-	  /* If the locale name contains an encoding after the dot, return
-	     it.  */
-	  const char *dot = strchr (locale, '.');
-
-	  if (dot != NULL)
-	    {
-	      const char *modifier;
-
-	      dot++;
-	      /* Look for the possible @... trailer and remove it, if any.  */
-	      modifier = strchr (dot, '@');
-	      if (modifier == NULL)
-		return dot;
-	      if (modifier - dot < sizeof (buf))
-		{
-		  memcpy (buf, dot, modifier - dot);
-		  buf [modifier - dot] = '\0';
-		  return buf;
-		}
-	    }
-	}
-
-      /* Woe32 has a function returning the locale's codepage as a number.  */
+        {
+          /* If the locale name contains an encoding after the dot, return
+             it.  */
+          const char *dot = strchr (locale, '.');
+
+          if (dot != NULL)
+            {
+              const char *modifier;
+
+              dot++;
+              /* Look for the possible @... trailer and remove it, if any.  */
+              modifier = strchr (dot, '@');
+              if (modifier == NULL)
+                return dot;
+              if (modifier - dot < sizeof (buf))
+                {
+                  memcpy (buf, dot, modifier - dot);
+                  buf [modifier - dot] = '\0';
+                  return buf;
+                }
+            }
+        }
+
+      /* Woe32 has a function returning the locale's codepage as a number:
+         GetACP().  This encoding is used by Cygwin, unless the user has set
+         the environment variable CYGWIN=codepage:oem (which very few people
+         do).
+         Output directed to console windows needs to be converted (to
+         GetOEMCP() if the console is using a raster font, or to
+         GetConsoleOutputCP() if it is using a TrueType font).  Cygwin does
+         this conversion transparently (see winsup/cygwin/fhandler_console.cc),
+         converting to GetConsoleOutputCP().  This leads to correct results,
+         except when SetConsoleOutputCP has been called and a raster font is
+         in use.  */
       sprintf (buf, "CP%u", GetACP ());
       codeset = buf;
     }
@@ -397,11 +441,11 @@ locale_charset (void)
     {
       locale = getenv ("LC_ALL");
       if (locale == NULL || locale[0] == '\0')
-	{
-	  locale = getenv ("LC_CTYPE");
-	  if (locale == NULL || locale[0] == '\0')
-	    locale = getenv ("LANG");
-	}
+        {
+          locale = getenv ("LC_CTYPE");
+          if (locale == NULL || locale[0] == '\0')
+            locale = getenv ("LANG");
+        }
     }
 
   /* On some old systems, one used to set locale = "iso8859_1". On others,
@@ -415,7 +459,13 @@ locale_charset (void)
 
   static char buf[2 + 10 + 1];
 
-  /* Woe32 has a function returning the locale's codepage as a number.  */
+  /* Woe32 has a function returning the locale's codepage as a number:
+     GetACP().
+     When the output goes to a console window, it needs to be provided in
+     GetOEMCP() encoding if the console is using a raster font, or in
+     GetConsoleOutputCP() encoding if it is using a TrueType font.
+     But in GUI programs and for output sent to files and pipes, GetACP()
+     encoding is the best bet.  */
   sprintf (buf, "CP%u", GetACP ());
   codeset = buf;
 
@@ -433,7 +483,7 @@ locale_charset (void)
     {
       locale = getenv ("LC_CTYPE");
       if (locale == NULL || locale[0] == '\0')
-	locale = getenv ("LANG");
+        locale = getenv ("LANG");
     }
   if (locale != NULL && locale[0] != '\0')
     {
@@ -441,21 +491,21 @@ locale_charset (void)
       const char *dot = strchr (locale, '.');
 
       if (dot != NULL)
-	{
-	  const char *modifier;
-
-	  dot++;
-	  /* Look for the possible @... trailer and remove it, if any.  */
-	  modifier = strchr (dot, '@');
-	  if (modifier == NULL)
-	    return dot;
-	  if (modifier - dot < sizeof (buf))
-	    {
-	      memcpy (buf, dot, modifier - dot);
-	      buf [modifier - dot] = '\0';
-	      return buf;
-	    }
-	}
+        {
+          const char *modifier;
+
+          dot++;
+          /* Look for the possible @... trailer and remove it, if any.  */
+          modifier = strchr (dot, '@');
+          if (modifier == NULL)
+            return dot;
+          if (modifier - dot < sizeof (buf))
+            {
+              memcpy (buf, dot, modifier - dot);
+              buf [modifier - dot] = '\0';
+              return buf;
+            }
+        }
 
       /* Resolve through the charset.alias file.  */
       codeset = locale;
@@ -464,12 +514,12 @@ locale_charset (void)
     {
       /* OS/2 has a function returning the locale's codepage as a number.  */
       if (DosQueryCp (sizeof (cp), cp, &cplen))
-	codeset = "";
+        codeset = "";
       else
-	{
-	  sprintf (buf, "CP%u", cp[0]);
-	  codeset = buf;
-	}
+        {
+          sprintf (buf, "CP%u", cp[0]);
+          codeset = buf;
+        }
     }
 
 #endif
@@ -483,10 +533,10 @@ locale_charset (void)
        *aliases != '\0';
        aliases += strlen (aliases) + 1, aliases += strlen (aliases) + 1)
     if (strcmp (codeset, aliases) == 0
-	|| (aliases[0] == '*' && aliases[1] == '\0'))
+        || (aliases[0] == '*' && aliases[1] == '\0'))
       {
-	codeset = aliases + strlen (aliases) + 1;
-	break;
+        codeset = aliases + strlen (aliases) + 1;
+        break;
       }
 
   /* Don't return an empty string.  GNU libc and GNU libiconv interpret

gl/localcharset.h

@@ -1,5 +1,5 @@
 /* Determine a canonical name for the current locale's character encoding.
-   Copyright (C) 2000-2003 Free Software Foundation, Inc.
+   Copyright (C) 2000-2003, 2009-2010 Free Software Foundation, Inc.
    This file is part of the GNU CHARSET Library.
 
    This program is free software; you can redistribute it and/or modify

gl/locale.in.h

@@ -0,0 +1,74 @@
+/* A POSIX <locale.h>.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#ifndef _GL_LOCALE_H
+
+#if __GNUC__ >= 3
+@PRAGMA_SYSTEM_HEADER@
+#endif
+
+/* The include_next requires a split double-inclusion guard.  */
+#@INCLUDE_NEXT@ @NEXT_LOCALE_H@
+
+#ifndef _GL_LOCALE_H
+#define _GL_LOCALE_H
+
+/* NetBSD 5.0 mis-defines NULL.  */
+#include <stddef.h>
+
+/* MacOS X 10.5 defines the locale_t type in <xlocale.h>.  */
+#if @HAVE_XLOCALE_H@
+# include <xlocale.h>
+#endif
+
+/* The definitions of _GL_FUNCDECL_RPL etc. are copied here.  */
+
+/* The definition of _GL_ARG_NONNULL is copied here.  */
+
+/* The definition of _GL_WARN_ON_USE is copied here.  */
+
+/* The LC_MESSAGES locale category is specified in POSIX, but not in ISO C.
+   On systems that don't define it, use the same value as GNU libintl.  */
+#if !defined LC_MESSAGES
+# define LC_MESSAGES 1729
+#endif
+
+#if @GNULIB_DUPLOCALE@
+# if @REPLACE_DUPLOCALE@
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#   undef duplocale
+#   define duplocale rpl_duplocale
+#  endif
+_GL_FUNCDECL_RPL (duplocale, locale_t, (locale_t locale) _GL_ARG_NONNULL ((1)));
+_GL_CXXALIAS_RPL (duplocale, locale_t, (locale_t locale));
+# else
+#  if @HAVE_DUPLOCALE@
+_GL_CXXALIAS_SYS (duplocale, locale_t, (locale_t locale));
+#  endif
+# endif
+# if @HAVE_DUPLOCALE@
+_GL_CXXALIASWARN (duplocale);
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef duplocale
+# if HAVE_RAW_DECL_DUPLOCALE
+_GL_WARN_ON_USE (duplocale, "duplocale is buggy on some glibc systems - "
+                 "use gnulib module duplocale for portability");
+# endif
+#endif
+
+#endif /* _GL_LOCALE_H */
+#endif /* _GL_LOCALE_H */

gl/m4/00gnulib.m4

@@ -1,5 +1,5 @@
 # 00gnulib.m4 serial 2
-dnl Copyright (C) 2009 Free Software Foundation, Inc.
+dnl Copyright (C) 2009-2010 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.

gl/m4/alloca.m4

@@ -1,5 +1,6 @@
 # alloca.m4 serial 9
-dnl Copyright (C) 2002-2004, 2006, 2007, 2009 Free Software Foundation, Inc.
+dnl Copyright (C) 2002-2004, 2006-2007, 2009-2010 Free Software Foundation,
+dnl Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.

gl/m4/arpa_inet_h.m4

@@ -1,5 +1,5 @@
-# arpa_inet_h.m4 serial 5
-dnl Copyright (C) 2006, 2008 Free Software Foundation, Inc.
+# arpa_inet_h.m4 serial 8
+dnl Copyright (C) 2006, 2008, 2009, 2010 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -16,27 +16,35 @@ AC_DEFUN([gl_HEADER_ARPA_INET],
   if test $ac_cv_header_arpa_inet_h = yes; then
     HAVE_ARPA_INET_H=1
   else
-    ARPA_INET_H='arpa/inet.h'
     HAVE_ARPA_INET_H=0
   fi
   AC_SUBST([HAVE_ARPA_INET_H])
-  dnl Execute this unconditionally, because ARPA_INET_H may be set by other
-  dnl modules, after this code is executed.
+  dnl <arpa/inet.h> is always overridden, because of GNULIB_POSIXCHECK.
   gl_CHECK_NEXT_HEADERS([arpa/inet.h])
+
+  dnl Check for declarations of anything we want to poison if the
+  dnl corresponding gnulib module is not in use.
+  gl_WARN_ON_USE_PREPARE([[
+/* On some systems, this header is not self-consistent.  */
+#ifndef __GLIBC__
+# include <sys/socket.h>
+#endif
+#include <arpa/inet.h>
+    ]], [inet_ntop inet_pton])
 ])
 
 dnl Unconditionally enables the replacement of <arpa/inet.h>.
 AC_DEFUN([gl_REPLACE_ARPA_INET_H],
 [
-  AC_REQUIRE([gl_ARPA_INET_H_DEFAULTS])
-  ARPA_INET_H='arpa/inet.h'
+  dnl This is a no-op, because <arpa/inet.h> is always overridden.
+  :
 ])
 
 AC_DEFUN([gl_ARPA_INET_MODULE_INDICATOR],
 [
   dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
   AC_REQUIRE([gl_ARPA_INET_H_DEFAULTS])
-  GNULIB_[]m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./-],[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])=1
+  gl_MODULE_INDICATOR_SET_VARIABLE([$1])
 ])
 
 AC_DEFUN([gl_ARPA_INET_H_DEFAULTS],
@@ -46,5 +54,4 @@ AC_DEFUN([gl_ARPA_INET_H_DEFAULTS],
   dnl Assume proper GNU behavior unless another module says otherwise.
   HAVE_DECL_INET_NTOP=1;  AC_SUBST([HAVE_DECL_INET_NTOP])
   HAVE_DECL_INET_PTON=1;  AC_SUBST([HAVE_DECL_INET_PTON])
-  ARPA_INET_H='';         AC_SUBST([ARPA_INET_H])
 ])

gl/m4/base64.m4

@@ -1,5 +1,5 @@
 # base64.m4 serial 3
-dnl Copyright (C) 2004, 2006 Free Software Foundation, Inc.
+dnl Copyright (C) 2004, 2006, 2009, 2010 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.

gl/m4/btowc.m4

@@ -1,5 +1,5 @@
-# btowc.m4 serial 4
-dnl Copyright (C) 2008-2009 Free Software Foundation, Inc.
+# btowc.m4 serial 6
+dnl Copyright (C) 2008-2010 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -8,15 +8,49 @@ AC_DEFUN([gl_FUNC_BTOWC],
 [
   AC_REQUIRE([gl_WCHAR_H_DEFAULTS])
 
+  dnl Check whether <wchar.h> is usable at all, first. Otherwise the test
+  dnl program below may lead to an endless loop. See
+  dnl <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42440>.
+  AC_REQUIRE([gl_WCHAR_H_INLINE_OK])
+
   AC_CHECK_FUNCS_ONCE([btowc])
   if test $ac_cv_func_btowc = no; then
     HAVE_BTOWC=0
   else
 
-    dnl IRIX 6.5 btowc(EOF) is 0xFF, not WEOF.
     AC_REQUIRE([AC_PROG_CC])
     AC_REQUIRE([gt_LOCALE_FR])
     AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
+
+    dnl Cygwin 1.7.2 btowc('\0') is WEOF, not 0.
+    AC_CACHE_CHECK([whether btowc(0) is correct],
+      [gl_cv_func_btowc_nul],
+      [
+        AC_TRY_RUN([
+#include <stdio.h>
+#include <string.h>
+#include <wchar.h>
+int main ()
+{
+  if (btowc ('\0') != 0)
+    return 1;
+  return 0;
+}],
+          [gl_cv_func_btowc_nul=yes],
+          [gl_cv_func_btowc_nul=no],
+          [
+changequote(,)dnl
+           case "$host_os" in
+                      # Guess no on Cygwin.
+             cygwin*) gl_cv_func_btowc_nul="guessing no" ;;
+                      # Guess yes otherwise.
+             *)       gl_cv_func_btowc_nul="guessing yes" ;;
+           esac
+changequote([,])dnl
+          ])
+      ])
+
+    dnl IRIX 6.5 btowc(EOF) is 0xFF, not WEOF.
     AC_CACHE_CHECK([whether btowc(EOF) is correct],
       [gl_cv_func_btowc_eof],
       [
@@ -50,6 +84,11 @@ int main ()
             [:])
         fi
       ])
+
+    case "$gl_cv_func_btowc_nul" in
+      *yes) ;;
+      *) REPLACE_BTOWC=1 ;;
+    esac
     case "$gl_cv_func_btowc_eof" in
       *yes) ;;
       *) REPLACE_BTOWC=1 ;;

gl/m4/c-strtod.m4

@@ -1,6 +1,6 @@
 # c-strtod.m4 serial 11
 
-# Copyright (C) 2004, 2005, 2006, 2009 Free Software Foundation, Inc.
+# Copyright (C) 2004-2006, 2009-2010 Free Software Foundation, Inc.
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
@@ -14,17 +14,17 @@ AC_DEFUN([gl_C99_STRTOLD],
     [AC_LINK_IFELSE(
        [AC_LANG_PROGRAM(
           [[/* On HP-UX before 11.23, strtold returns a struct instead of
-		long double.  Reject implementations like that, by requiring
-		compatibility with the C99 prototype.  */
-	     #include <stdlib.h>
-	     static long double (*p) (char const *, char **) = strtold;
-	     static long double
-	     test (char const *nptr, char **endptr)
-	     {
-	       long double r;
-	       r = strtold (nptr, endptr);
-	       return r;
-	     }]],
+                long double.  Reject implementations like that, by requiring
+                compatibility with the C99 prototype.  */
+             #include <stdlib.h>
+             static long double (*p) (char const *, char **) = strtold;
+             static long double
+             test (char const *nptr, char **endptr)
+             {
+               long double r;
+               r = strtold (nptr, endptr);
+               return r;
+             }]],
            [[return test ("1.0", NULL) != 1 || p ("1.0", NULL) != 1;]])],
        [gl_cv_func_c99_strtold=yes],
        [gl_cv_func_c99_strtold=no])])

gl/m4/cloexec.m4

@@ -1,5 +1,5 @@
 #serial 6
-dnl Copyright (C) 2004, 2005, 2006 Free Software Foundation, Inc.
+dnl Copyright (C) 2004-2006, 2009-2010 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.

gl/m4/codeset.m4

@@ -1,5 +1,5 @@
 # codeset.m4 serial 4 (gettext-0.18)
-dnl Copyright (C) 2000-2002, 2006, 2008, 2009 Free Software Foundation, Inc.
+dnl Copyright (C) 2000-2002, 2006, 2008-2010 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.

gl/m4/dirname.m4

@@ -1,18 +1,26 @@
-#serial 7   -*- autoconf -*-
-dnl Copyright (C) 2002-2006 Free Software Foundation, Inc.
+#serial 8   -*- autoconf -*-
+dnl Copyright (C) 2002-2006, 2009-2010 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 
 AC_DEFUN([gl_DIRNAME],
 [
+  AC_REQUIRE([gl_DIRNAME_LGPL])
   AC_LIBOBJ([basename])
   AC_LIBOBJ([dirname])
+])
+
+AC_DEFUN([gl_DIRNAME_LGPL],
+[
+  AC_LIBOBJ([basename-lgpl])
+  AC_LIBOBJ([dirname-lgpl])
   AC_LIBOBJ([stripslash])
 
   dnl Prerequisites of lib/dirname.h.
   AC_REQUIRE([gl_AC_DOS])
   AC_REQUIRE([gl_DOUBLE_SLASH_ROOT])
 
-  dnl No prerequisites of lib/basename.c, lib/dirname.c, lib/stripslash.c.
+  dnl No prerequisites of lib/basename-lgpl.c, lib/dirname-lgpl.c,
+  dnl lib/stripslash.c.
 ])

gl/m4/dos.m4

@@ -1,9 +1,9 @@
-#serial 10   -*- autoconf -*-
+#serial 11   -*- autoconf -*-
 
 # Define some macros required for proper operation of code in lib/*.c
 # on MSDOS/Windows systems.
 
-# Copyright (C) 2000, 2001, 2004, 2005, 2006 Free Software Foundation, Inc.
+# Copyright (C) 2000-2001, 2004-2006, 2009-2010 Free Software Foundation, Inc.
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
@@ -14,31 +14,31 @@ AC_DEFUN([gl_AC_DOS],
   [
     AC_CACHE_CHECK([whether system is Windows or MSDOS], [ac_cv_win_or_dos],
       [
-	AC_TRY_COMPILE([],
-	[#if !defined _WIN32 && !defined __WIN32__ && !defined __MSDOS__ && !defined __CYGWIN__
+        AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [[
+#if !defined _WIN32 && !defined __WIN32__ && !defined __MSDOS__ && !defined __CYGWIN__
 neither MSDOS nor Windows
-#endif],
-	[ac_cv_win_or_dos=yes],
-	[ac_cv_win_or_dos=no])
+#endif]])],
+        [ac_cv_win_or_dos=yes],
+        [ac_cv_win_or_dos=no])
       ])
 
     if test x"$ac_cv_win_or_dos" = xyes; then
       ac_fs_accepts_drive_letter_prefix=1
       ac_fs_backslash_is_file_name_separator=1
       AC_CACHE_CHECK([whether drive letter can start relative path],
-		     [ac_cv_drive_letter_can_be_relative],
-	[
-	  AC_TRY_COMPILE([],
-	  [#if defined __CYGWIN__
+                     [ac_cv_drive_letter_can_be_relative],
+        [
+          AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [[
+#if defined __CYGWIN__
 drive letters are always absolute
-#endif],
-	  [ac_cv_drive_letter_can_be_relative=yes],
-	  [ac_cv_drive_letter_can_be_relative=no])
-	])
+#endif]])],
+          [ac_cv_drive_letter_can_be_relative=yes],
+          [ac_cv_drive_letter_can_be_relative=no])
+        ])
       if test x"$ac_cv_drive_letter_can_be_relative" = xyes; then
-	ac_fs_drive_letter_can_be_relative=1
+        ac_fs_drive_letter_can_be_relative=1
       else
-	ac_fs_drive_letter_can_be_relative=0
+        ac_fs_drive_letter_can_be_relative=0
       fi
     else
       ac_fs_accepts_drive_letter_prefix=0

gl/m4/double-slash-root.m4

@@ -1,5 +1,5 @@
 # double-slash-root.m4 serial 4   -*- Autoconf -*-
-dnl Copyright (C) 2006, 2008, 2009 Free Software Foundation, Inc.
+dnl Copyright (C) 2006, 2008-2010 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -9,27 +9,27 @@ AC_DEFUN([gl_DOUBLE_SLASH_ROOT],
   AC_REQUIRE([AC_CANONICAL_HOST])
   AC_CACHE_CHECK([whether // is distinct from /], [gl_cv_double_slash_root],
     [ if test x"$cross_compiling" = xyes ; then
-	# When cross-compiling, there is no way to tell whether // is special
-	# short of a list of hosts.  However, the only known hosts to date
-	# that have a distinct // are Apollo DomainOS (too old to port to),
-	# Cygwin, and z/OS.  If anyone knows of another system for which // has
-	# special semantics and is distinct from /, please report it to
-	# <bug-gnulib@gnu.org>.
-	case $host in
-	  *-cygwin | i370-ibm-openedition)
-	    gl_cv_double_slash_root=yes ;;
-	  *)
-	    # Be optimistic and assume that / and // are the same when we
-	    # don't know.
-	    gl_cv_double_slash_root='unknown, assuming no' ;;
-	esac
+        # When cross-compiling, there is no way to tell whether // is special
+        # short of a list of hosts.  However, the only known hosts to date
+        # that have a distinct // are Apollo DomainOS (too old to port to),
+        # Cygwin, and z/OS.  If anyone knows of another system for which // has
+        # special semantics and is distinct from /, please report it to
+        # <bug-gnulib@gnu.org>.
+        case $host in
+          *-cygwin | i370-ibm-openedition)
+            gl_cv_double_slash_root=yes ;;
+          *)
+            # Be optimistic and assume that / and // are the same when we
+            # don't know.
+            gl_cv_double_slash_root='unknown, assuming no' ;;
+        esac
       else
-	set x `ls -di / // 2>/dev/null`
-	if test "$[2]" = "$[4]" && wc //dev/null >/dev/null 2>&1; then
-	  gl_cv_double_slash_root=no
-	else
-	  gl_cv_double_slash_root=yes
-	fi
+        set x `ls -di / // 2>/dev/null`
+        if test "$[2]" = "$[4]" && wc //dev/null >/dev/null 2>&1; then
+          gl_cv_double_slash_root=no
+        else
+          gl_cv_double_slash_root=yes
+        fi
       fi])
   if test "$gl_cv_double_slash_root" = yes; then
     AC_DEFINE([DOUBLE_SLASH_IS_DISTINCT_ROOT], [1],

gl/m4/dup2.m4

@@ -0,0 +1,58 @@
+#serial 10
+dnl Copyright (C) 2002, 2005, 2007, 2009-2010 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_FUNC_DUP2],
+[
+  AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
+  AC_REQUIRE([AC_CANONICAL_HOST])
+  AC_CHECK_FUNCS_ONCE([dup2])
+  if test $ac_cv_func_dup2 = no; then
+    HAVE_DUP2=0
+    AC_LIBOBJ([dup2])
+  else
+    AC_CACHE_CHECK([whether dup2 works], [gl_cv_func_dup2_works],
+      [AC_RUN_IFELSE([
+         AC_LANG_PROGRAM([[#include <unistd.h>
+#include <errno.h>]],
+           [if (dup2 (1, 1) == 0)
+              return 1;
+            close (0);
+            if (dup2 (0, 0) != -1)
+              return 2;
+            /* Many gnulib modules require POSIX conformance of EBADF.  */
+            if (dup2 (1, 1000000) == -1 && errno != EBADF)
+              return 3;
+            return 0;
+           ])
+        ],
+        [gl_cv_func_dup2_works=yes], [gl_cv_func_dup2_works=no],
+        [case "$host_os" in
+           mingw*) # on this platform, dup2 always returns 0 for success
+             gl_cv_func_dup2_works=no;;
+           cygwin*) # on cygwin 1.5.x, dup2(1,1) returns 0
+             gl_cv_func_dup2_works=no;;
+           linux*) # On linux between 2008-07-27 and 2009-05-11, dup2 of a
+                   # closed fd may yield -EBADF instead of -1 / errno=EBADF.
+             gl_cv_func_dup2_works=no;;
+           freebsd*) # on FreeBSD 6.1, dup2(1,1000000) gives EMFILE, not EBADF.
+             gl_cv_func_dup2_works=no;;
+           *) gl_cv_func_dup2_works=yes;;
+         esac])
+      ])
+    if test "$gl_cv_func_dup2_works" = no; then
+      gl_REPLACE_DUP2
+    fi
+  fi
+])
+
+AC_DEFUN([gl_REPLACE_DUP2],
+[
+  AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
+  if test $ac_cv_func_dup2 = yes; then
+    REPLACE_DUP2=1
+  fi
+  AC_LIBOBJ([dup2])
+])

gl/m4/errno_h.m4

@@ -1,5 +1,5 @@
-# errno_h.m4 serial 5
-dnl Copyright (C) 2004, 2006, 2008, 2009 Free Software Foundation, Inc.
+# errno_h.m4 serial 6
+dnl Copyright (C) 2004, 2006, 2008, 2009, 2010 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -34,6 +34,9 @@ booboo
 #if !defined ENOTSUP
 booboo
 #endif
+#if !defined ESTALE
+booboo
+#endif
 #if !defined ECANCELED
 booboo
 #endif

gl/m4/error.m4

@@ -1,7 +1,6 @@
-#serial 11
+#serial 12
 
-# Copyright (C) 1996, 1997, 1998, 2001, 2002, 2003, 2004 Free Software
-# Foundation, Inc.
+# Copyright (C) 1996-1998, 2001-2004, 2009-2010 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -18,5 +17,6 @@ AC_DEFUN([gl_ERROR],
 AC_DEFUN([gl_PREREQ_ERROR],
 [
   AC_REQUIRE([AC_FUNC_STRERROR_R])
+  AC_REQUIRE([AC_C_INLINE])
   :
 ])

gl/m4/exitfail.m4

@@ -1,13 +0,0 @@
-# exitfail.m4 serial 6
-dnl Copyright (C) 2002, 2003, 2005, 2006 Free Software Foundation, Inc.
-dnl This file is free software; the Free Software Foundation
-dnl gives unlimited permission to copy and/or distribute it,
-dnl with or without modifications, as long as this notice is preserved.
-
-AC_DEFUN([gl_EXITFAIL],
-[
-  AC_LIBOBJ([exitfail])
-
-  dnl No prerequisites of lib/exitfail.c.
-  :
-])

gl/m4/extensions.m4

@@ -1,7 +1,7 @@
-# serial 8  -*- Autoconf -*-
+# serial 9  -*- Autoconf -*-
 # Enable extensions on systems that normally disable them.
 
-# Copyright (C) 2003, 2006-2009 Free Software Foundation, Inc.
+# Copyright (C) 2003, 2006-2010 Free Software Foundation, Inc.
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
@@ -12,6 +12,20 @@
 # enough in this area it's likely we'll need to redefine
 # AC_USE_SYSTEM_EXTENSIONS for quite some time.
 
+# If autoconf reports a warning
+#     warning: AC_COMPILE_IFELSE was called before AC_USE_SYSTEM_EXTENSIONS
+# or  warning: AC_RUN_IFELSE was called before AC_USE_SYSTEM_EXTENSIONS
+# the fix is
+#   1) to ensure that AC_USE_SYSTEM_EXTENSIONS is never directly invoked
+#      but always AC_REQUIREd,
+#   2) to ensure that for each occurrence of
+#        AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
+#      or
+#        AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
+#      the corresponding gnulib module description has 'extensions' among
+#      its dependencies. This will ensure that the gl_USE_SYSTEM_EXTENSIONS
+#      invocation occurs in gl_EARLY, not in gl_INIT.
+
 # AC_USE_SYSTEM_EXTENSIONS
 # ------------------------
 # Enable extensions on systems that normally disable them,
@@ -74,8 +88,8 @@ AC_BEFORE([$0], [AC_RUN_IFELSE])dnl
     [ac_cv_safe_to_define___extensions__],
     [AC_COMPILE_IFELSE(
        [AC_LANG_PROGRAM([[
-#	  define __EXTENSIONS__ 1
-	  ]AC_INCLUDES_DEFAULT])],
+#         define __EXTENSIONS__ 1
+          ]AC_INCLUDES_DEFAULT])],
        [ac_cv_safe_to_define___extensions__=yes],
        [ac_cv_safe_to_define___extensions__=no])])
   test $ac_cv_safe_to_define___extensions__ = yes &&

gl/m4/fcntl-o.m4

@@ -0,0 +1,81 @@
+# fcntl-o.m4 serial 1
+dnl Copyright (C) 2006, 2009-2010 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+dnl Written by Paul Eggert.
+
+# Test whether the flags O_NOATIME and O_NOFOLLOW actually work.
+# Define HAVE_WORKING_O_NOATIME to 1 if O_NOATIME works, or to 0 otherwise.
+# Define HAVE_WORKING_O_NOFOLLOW to 1 if O_NOFOLLOW works, or to 0 otherwise.
+AC_DEFUN([gl_FCNTL_O_FLAGS],
+[
+  dnl Persuade glibc <fcntl.h> to define O_NOATIME and O_NOFOLLOW.
+  AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
+  AC_CACHE_CHECK([for working fcntl.h], [gl_cv_header_working_fcntl_h],
+    [AC_RUN_IFELSE(
+       [AC_LANG_PROGRAM(
+          [[#include <sys/types.h>
+           #include <sys/stat.h>
+           #include <unistd.h>
+           #include <fcntl.h>
+           #ifndef O_NOATIME
+            #define O_NOATIME 0
+           #endif
+           #ifndef O_NOFOLLOW
+            #define O_NOFOLLOW 0
+           #endif
+           static int const constants[] =
+            {
+              O_CREAT, O_EXCL, O_NOCTTY, O_TRUNC, O_APPEND,
+              O_NONBLOCK, O_SYNC, O_ACCMODE, O_RDONLY, O_RDWR, O_WRONLY
+            };
+          ]],
+          [[
+            int status = !constants;
+            {
+              static char const sym[] = "conftest.sym";
+              if (symlink (".", sym) != 0
+                  || close (open (sym, O_RDONLY | O_NOFOLLOW)) == 0)
+                status |= 32;
+              unlink (sym);
+            }
+            {
+              static char const file[] = "confdefs.h";
+              int fd = open (file, O_RDONLY | O_NOATIME);
+              char c;
+              struct stat st0, st1;
+              if (fd < 0
+                  || fstat (fd, &st0) != 0
+                  || sleep (1) != 0
+                  || read (fd, &c, 1) != 1
+                  || close (fd) != 0
+                  || stat (file, &st1) != 0
+                  || st0.st_atime != st1.st_atime)
+                status |= 64;
+            }
+            return status;]])],
+       [gl_cv_header_working_fcntl_h=yes],
+       [case $? in #(
+        32) gl_cv_header_working_fcntl_h='no (bad O_NOFOLLOW)';; #(
+        64) gl_cv_header_working_fcntl_h='no (bad O_NOATIME)';; #(
+        96) gl_cv_header_working_fcntl_h='no (bad O_NOATIME, O_NOFOLLOW)';; #(
+         *) gl_cv_header_working_fcntl_h='no';;
+        esac],
+       [gl_cv_header_working_fcntl_h=cross-compiling])])
+
+  case $gl_cv_header_working_fcntl_h in #(
+  *O_NOATIME* | no | cross-compiling) ac_val=0;; #(
+  *) ac_val=1;;
+  esac
+  AC_DEFINE_UNQUOTED([HAVE_WORKING_O_NOATIME], [$ac_val],
+    [Define to 1 if O_NOATIME works.])
+
+  case $gl_cv_header_working_fcntl_h in #(
+  *O_NOFOLLOW* | no | cross-compiling) ac_val=0;; #(
+  *) ac_val=1;;
+  esac
+  AC_DEFINE_UNQUOTED([HAVE_WORKING_O_NOFOLLOW], [$ac_val],
+    [Define to 1 if O_NOFOLLOW works.])
+])

gl/m4/fcntl-safer.m4

@@ -1,5 +1,5 @@
-#serial 5
-dnl Copyright (C) 2005-2007 Free Software Foundation, Inc.
+#serial 7
+dnl Copyright (C) 2005-2007, 2009-2010 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -8,4 +8,12 @@ AC_DEFUN([gl_FCNTL_SAFER],
 [
   AC_LIBOBJ([open-safer])
   AC_LIBOBJ([creat-safer])
+  # Prerequisites of lib/open-safer.c.
+  AC_REQUIRE([gl_PROMOTED_TYPE_MODE_T])
+])
+
+AC_DEFUN([gl_OPENAT_SAFER],
+[
+  AC_REQUIRE([gl_FCNTL_SAFER])
+  AC_LIBOBJ([openat-safer])
 ])

gl/m4/fcntl.m4

@@ -0,0 +1,83 @@
+# fcntl.m4 serial 3
+dnl Copyright (C) 2009, 2010 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+# For now, this module ensures that fcntl()
+# - supports F_DUPFD correctly
+# - supports or emulates F_DUPFD_CLOEXEC
+# - supports F_GETFD
+# Still to be ported to mingw:
+# - F_SETFD
+# - F_GETFL, F_SETFL
+# - F_GETOWN, F_SETOWN
+# - F_GETLK, F_SETLK, F_SETLKW
+AC_DEFUN([gl_FUNC_FCNTL],
+[
+  dnl Persuade glibc to expose F_DUPFD_CLOEXEC.
+  AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
+  AC_REQUIRE([gl_FCNTL_H_DEFAULTS])
+  AC_REQUIRE([AC_CANONICAL_HOST])
+  AC_CHECK_FUNCS_ONCE([fcntl])
+  if test $ac_cv_func_fcntl = no; then
+    gl_REPLACE_FCNTL
+  else
+    dnl cygwin 1.5.x F_DUPFD has wrong errno, and allows negative target
+    AC_CACHE_CHECK([whether fcntl handles F_DUPFD correctly],
+      [gl_cv_func_fcntl_f_dupfd_works],
+      [AC_RUN_IFELSE([AC_LANG_PROGRAM([[
+#include <fcntl.h>
+]], [[return fcntl (0, F_DUPFD, -1) != -1;
+         ]])],
+         [gl_cv_func_fcntl_f_dupfd_works=yes],
+         [gl_cv_func_fcntl_f_dupfd_works=no],
+         [# Guess that it works on glibc systems
+          case $host_os in #((
+            *-gnu*) gl_cv_func_fcntl_f_dupfd_works="guessing yes";;
+            *)      gl_cv_func_fcntl_f_dupfd_works="guessing no";;
+          esac])])
+    case $gl_cv_func_fcntl_f_dupfd_works in
+      *yes) ;;
+      *) gl_REPLACE_FCNTL
+        AC_DEFINE([FCNTL_DUPFD_BUGGY], [1], [Define this to 1 if F_DUPFD
+          behavior does not match POSIX]) ;;
+    esac
+
+    dnl Many systems lack F_DUPFD_CLOEXEC
+    AC_CACHE_CHECK([whether fcntl understands F_DUPFD_CLOEXEC],
+      [gl_cv_func_fcntl_f_dupfd_cloexec],
+      [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+#include <fcntl.h>
+#ifndef F_DUPFD_CLOEXEC
+choke me
+#endif
+         ]])],
+         [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+#ifdef __linux__
+/* The Linux kernel only added F_DUPFD_CLOEXEC in 2.6.24, so we always replace
+   it to support the semantics on older kernels that failed with EINVAL.  */
+choke me
+#endif
+           ]])],
+           [gl_cv_func_fcntl_f_dupfd_cloexec=yes],
+           [gl_cv_func_fcntl_f_dupfd_cloexec="needs runtime check"])],
+         [gl_cv_func_fcntl_f_dupfd_cloexec=no])])
+    if test "$gl_cv_func_fcntl_f_dupfd_cloexec" != yes; then
+      gl_REPLACE_FCNTL
+      dnl No witness macro needed for this bug.
+    fi
+  fi
+])
+
+AC_DEFUN([gl_REPLACE_FCNTL],
+[
+  AC_REQUIRE([gl_FCNTL_H_DEFAULTS])
+  AC_CHECK_FUNCS_ONCE([fcntl])
+  if test $ac_cv_func_fcntl = no; then
+    HAVE_FCNTL=0
+  else
+    REPLACE_FCNTL=1
+  fi
+  AC_LIBOBJ([fcntl])
+])

gl/m4/fcntl_h.m4

@@ -1,5 +1,6 @@
+# serial 12
 # Configure fcntl.h.
-dnl Copyright (C) 2006, 2007, 2009 Free Software Foundation, Inc.
+dnl Copyright (C) 2006, 2007, 2009, 2010 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -9,88 +10,34 @@ dnl Written by Paul Eggert.
 AC_DEFUN([gl_FCNTL_H],
 [
   AC_REQUIRE([gl_FCNTL_H_DEFAULTS])
-  dnl Persuade glibc <fcntl.h> to define O_NOATIME and O_NOFOLLOW.
-  AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
-  AC_CACHE_CHECK([for working fcntl.h], [gl_cv_header_working_fcntl_h],
-    [AC_RUN_IFELSE(
-       [AC_LANG_PROGRAM(
-	  [[#include <sys/types.h>
-	   #include <sys/stat.h>
-	   #include <unistd.h>
-	   #include <fcntl.h>
-	   #ifndef O_NOATIME
-	    #define O_NOATIME 0
-	   #endif
-	   #ifndef O_NOFOLLOW
-	    #define O_NOFOLLOW 0
-	   #endif
-	   static int const constants[] =
-	    {
-	      O_CREAT, O_EXCL, O_NOCTTY, O_TRUNC, O_APPEND,
-	      O_NONBLOCK, O_SYNC, O_ACCMODE, O_RDONLY, O_RDWR, O_WRONLY
-	    };
-	  ]],
-	  [[
-	    int status = !constants;
-	    {
-	      static char const sym[] = "conftest.sym";
-	      if (symlink (".", sym) != 0
-		  || close (open (sym, O_RDONLY | O_NOFOLLOW)) == 0)
-		status |= 32;
-	    }
-	    {
-	      static char const file[] = "confdefs.h";
-	      int fd = open (file, O_RDONLY | O_NOATIME);
-	      char c;
-	      struct stat st0, st1;
-	      if (fd < 0
-		  || fstat (fd, &st0) != 0
-		  || sleep (1) != 0
-		  || read (fd, &c, 1) != 1
-		  || close (fd) != 0
-		  || stat (file, &st1) != 0
-		  || st0.st_atime != st1.st_atime)
-		status |= 64;
-	    }
-	    return status;]])],
-       [gl_cv_header_working_fcntl_h=yes],
-       [case $? in #(
-	32) gl_cv_header_working_fcntl_h='no (bad O_NOFOLLOW)';; #(
-	64) gl_cv_header_working_fcntl_h='no (bad O_NOATIME)';; #(
-	96) gl_cv_header_working_fcntl_h='no (bad O_NOATIME, O_NOFOLLOW)';; #(
-	 *) gl_cv_header_working_fcntl_h='no';;
-	esac],
-       [gl_cv_header_working_fcntl_h=cross-compiling])])
-
-  case $gl_cv_header_working_fcntl_h in #(
-  *O_NOATIME* | no | cross-compiling) ac_val=0;; #(
-  *) ac_val=1;;
-  esac
-  AC_DEFINE_UNQUOTED([HAVE_WORKING_O_NOATIME], [$ac_val],
-    [Define to 1 if O_NOATIME works.])
-
-  case $gl_cv_header_working_fcntl_h in #(
-  *O_NOFOLLOW* | no | cross-compiling) ac_val=0;; #(
-  *) ac_val=1;;
-  esac
-  AC_DEFINE_UNQUOTED([HAVE_WORKING_O_NOFOLLOW], [$ac_val],
-    [Define to 1 if O_NOFOLLOW works.])
-
+  AC_REQUIRE([gl_FCNTL_O_FLAGS])
   gl_CHECK_NEXT_HEADERS([fcntl.h])
-  FCNTL_H='fcntl.h'
-  AC_SUBST([FCNTL_H])
+
+  dnl Check for declarations of anything we want to poison if the
+  dnl corresponding gnulib module is not in use, if it is not common
+  dnl enough to be declared everywhere.
+  gl_WARN_ON_USE_PREPARE([[#include <fcntl.h>
+    ]], [fcntl openat])
 ])
 
 AC_DEFUN([gl_FCNTL_MODULE_INDICATOR],
 [
   dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
   AC_REQUIRE([gl_FCNTL_H_DEFAULTS])
-  GNULIB_[]m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./-],[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])=1
+  gl_MODULE_INDICATOR_SET_VARIABLE([$1])
+  dnl Define it also as a C macro, for the benefit of the unit tests.
+  gl_MODULE_INDICATOR_FOR_TESTS([$1])
 ])
 
 AC_DEFUN([gl_FCNTL_H_DEFAULTS],
 [
-  GNULIB_OPEN=0;  AC_SUBST([GNULIB_OPEN])
+  GNULIB_FCNTL=0;   AC_SUBST([GNULIB_FCNTL])
+  GNULIB_OPEN=0;    AC_SUBST([GNULIB_OPEN])
+  GNULIB_OPENAT=0;  AC_SUBST([GNULIB_OPENAT])
   dnl Assume proper GNU behavior unless another module says otherwise.
-  REPLACE_OPEN=0; AC_SUBST([REPLACE_OPEN])
+  HAVE_FCNTL=1;     AC_SUBST([HAVE_FCNTL])
+  HAVE_OPENAT=1;    AC_SUBST([HAVE_OPENAT])
+  REPLACE_FCNTL=0;  AC_SUBST([REPLACE_FCNTL])
+  REPLACE_OPEN=0;   AC_SUBST([REPLACE_OPEN])
+  REPLACE_OPENAT=0; AC_SUBST([REPLACE_OPENAT])
 ])

gl/m4/float_h.m4

@@ -1,5 +1,5 @@
 # float_h.m4 serial 3
-dnl Copyright (C) 2007 Free Software Foundation, Inc.
+dnl Copyright (C) 2007, 2009, 2010 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.

gl/m4/floorf.m4

@@ -1,5 +1,5 @@
-# floorf.m4 serial 4
-dnl Copyright (C) 2007, 2009 Free Software Foundation, Inc.
+# floorf.m4 serial 6
+dnl Copyright (C) 2007, 2009-2010 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -20,13 +20,12 @@ AC_DEFUN([gl_FUNC_FLOORF],
       REPLACE_FLOORF=1
     fi
   else
-    REPLACE_FLOORF=1
+    HAVE_DECL_FLOORF=0
   fi
-  if test $REPLACE_FLOORF = 1; then
+  if test $HAVE_DECL_FLOORF = 0 || test $REPLACE_FLOORF = 1; then
     AC_LIBOBJ([floorf])
     FLOORF_LIBM=
   fi
-  AC_SUBST([REPLACE_FLOORF])
   AC_SUBST([FLOORF_LIBM])
 ])
 

gl/m4/fstypename.m4

@@ -6,7 +6,8 @@ dnl See if struct statfs has the f_fstypename member.
 dnl If so, define HAVE_STRUCT_STATFS_F_FSTYPENAME.
 dnl
 
-# Copyright (C) 1998, 1999, 2001, 2004, 2006 Free Software Foundation, Inc.
+# Copyright (C) 1998-1999, 2001, 2004, 2006, 2009-2010 Free Software
+# Foundation, Inc.
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.

gl/m4/fsusage.m4

@@ -1,7 +1,7 @@
-# serial 24
+# serial 25
 # Obtaining file system usage information.
 
-# Copyright (C) 1997-1998, 2000-2001, 2003-2009 Free Software Foundation, Inc.
+# Copyright (C) 1997-1998, 2000-2001, 2003-2010 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -46,7 +46,7 @@ ac_fsusage_space=no
 if test $ac_fsusage_space = no; then
   # SVR4
   AC_CACHE_CHECK([for statvfs function (SVR4)], [fu_cv_sys_stat_statvfs],
-		 [AC_TRY_LINK([#include <sys/types.h>
+                 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
 #if defined __GLIBC__ && defined __linux__
 Do not use statvfs on systems with GNU libc on Linux, because that function
 stats all preceding entries in /proc/mounts, and that makes df hang if even
@@ -59,14 +59,14 @@ a system call.
 "Do not use Tru64's statvfs implementation"
 #endif
 
-#include <sys/statvfs.h>],
-			      [struct statvfs fsd; statvfs (0, &fsd);],
-			      fu_cv_sys_stat_statvfs=yes,
-			      fu_cv_sys_stat_statvfs=no)])
+#include <sys/statvfs.h>]],
+                                    [[struct statvfs fsd; statvfs (0, &fsd);]])],
+                                 [fu_cv_sys_stat_statvfs=yes],
+                                 [fu_cv_sys_stat_statvfs=no])])
   if test $fu_cv_sys_stat_statvfs = yes; then
     ac_fsusage_space=yes
     AC_DEFINE([STAT_STATVFS], [1],
-	      [  Define if there is a function named statvfs.  (SVR4)])
+              [  Define if there is a function named statvfs.  (SVR4)])
   fi
 fi
 
@@ -74,7 +74,7 @@ if test $ac_fsusage_space = no; then
   # DEC Alpha running OSF/1
   AC_MSG_CHECKING([for 3-argument statfs function (DEC OSF/1)])
   AC_CACHE_VAL([fu_cv_sys_stat_statfs3_osf1],
-  [AC_TRY_RUN([
+  [AC_RUN_IFELSE([AC_LANG_SOURCE([[
 #include <sys/param.h>
 #include <sys/types.h>
 #include <sys/mount.h>
@@ -84,15 +84,15 @@ if test $ac_fsusage_space = no; then
     struct statfs fsd;
     fsd.f_fsize = 0;
     return statfs (".", &fsd, sizeof (struct statfs)) != 0;
-  }],
-  fu_cv_sys_stat_statfs3_osf1=yes,
-  fu_cv_sys_stat_statfs3_osf1=no,
-  fu_cv_sys_stat_statfs3_osf1=no)])
+  }]])],
+    [fu_cv_sys_stat_statfs3_osf1=yes],
+    [fu_cv_sys_stat_statfs3_osf1=no],
+    [fu_cv_sys_stat_statfs3_osf1=no])])
   AC_MSG_RESULT([$fu_cv_sys_stat_statfs3_osf1])
   if test $fu_cv_sys_stat_statfs3_osf1 = yes; then
     ac_fsusage_space=yes
     AC_DEFINE([STAT_STATFS3_OSF1], [1],
-	      [   Define if  statfs takes 3 args.  (DEC Alpha running OSF/1)])
+              [   Define if  statfs takes 3 args.  (DEC Alpha running OSF/1)])
   fi
 fi
 
@@ -101,7 +101,7 @@ if test $ac_fsusage_space = no; then
   AC_MSG_CHECKING([for two-argument statfs with statfs.bsize dnl
 member (AIX, 4.3BSD)])
   AC_CACHE_VAL([fu_cv_sys_stat_statfs2_bsize],
-  [AC_TRY_RUN([
+  [AC_RUN_IFELSE([AC_LANG_SOURCE([[
 #ifdef HAVE_SYS_PARAM_H
 #include <sys/param.h>
 #endif
@@ -117,10 +117,10 @@ member (AIX, 4.3BSD)])
   struct statfs fsd;
   fsd.f_bsize = 0;
   return statfs (".", &fsd) != 0;
-  }],
-  fu_cv_sys_stat_statfs2_bsize=yes,
-  fu_cv_sys_stat_statfs2_bsize=no,
-  fu_cv_sys_stat_statfs2_bsize=no)])
+  }]])],
+    [fu_cv_sys_stat_statfs2_bsize=yes],
+    [fu_cv_sys_stat_statfs2_bsize=no],
+    [fu_cv_sys_stat_statfs2_bsize=no])])
   AC_MSG_RESULT([$fu_cv_sys_stat_statfs2_bsize])
   if test $fu_cv_sys_stat_statfs2_bsize = yes; then
     ac_fsusage_space=yes
@@ -134,22 +134,23 @@ if test $ac_fsusage_space = no; then
 # SVR3
   AC_MSG_CHECKING([for four-argument statfs (AIX-3.2.5, SVR3)])
   AC_CACHE_VAL([fu_cv_sys_stat_statfs4],
-  [AC_TRY_RUN([#include <sys/types.h>
+  [AC_RUN_IFELSE([AC_LANG_SOURCE([[
+#include <sys/types.h>
 #include <sys/statfs.h>
   int
   main ()
   {
   struct statfs fsd;
   return statfs (".", &fsd, sizeof fsd, 0) != 0;
-  }],
-    fu_cv_sys_stat_statfs4=yes,
-    fu_cv_sys_stat_statfs4=no,
-    fu_cv_sys_stat_statfs4=no)])
+  }]])],
+    [fu_cv_sys_stat_statfs4=yes],
+    [fu_cv_sys_stat_statfs4=no],
+    [fu_cv_sys_stat_statfs4=no])])
   AC_MSG_RESULT([$fu_cv_sys_stat_statfs4])
   if test $fu_cv_sys_stat_statfs4 = yes; then
     ac_fsusage_space=yes
     AC_DEFINE([STAT_STATFS4], [1],
-	      [  Define if statfs takes 4 args.  (SVR3, Dynix, Irix, Dolphin)])
+              [  Define if statfs takes 4 args.  (SVR3, Dynix, Irix, Dolphin)])
   fi
 fi
 
@@ -158,7 +159,8 @@ if test $ac_fsusage_space = no; then
   AC_MSG_CHECKING([for two-argument statfs with statfs.fsize dnl
 member (4.4BSD and NetBSD)])
   AC_CACHE_VAL([fu_cv_sys_stat_statfs2_fsize],
-  [AC_TRY_RUN([#include <sys/types.h>
+  [AC_RUN_IFELSE([AC_LANG_SOURCE([[
+#include <sys/types.h>
 #ifdef HAVE_SYS_PARAM_H
 #include <sys/param.h>
 #endif
@@ -171,10 +173,10 @@ member (4.4BSD and NetBSD)])
   struct statfs fsd;
   fsd.f_fsize = 0;
   return statfs (".", &fsd) != 0;
-  }],
-  fu_cv_sys_stat_statfs2_fsize=yes,
-  fu_cv_sys_stat_statfs2_fsize=no,
-  fu_cv_sys_stat_statfs2_fsize=no)])
+  }]])],
+    [fu_cv_sys_stat_statfs2_fsize=yes],
+    [fu_cv_sys_stat_statfs2_fsize=no],
+    [fu_cv_sys_stat_statfs2_fsize=no])])
   AC_MSG_RESULT([$fu_cv_sys_stat_statfs2_fsize])
   if test $fu_cv_sys_stat_statfs2_fsize = yes; then
     ac_fsusage_space=yes
@@ -188,7 +190,8 @@ if test $ac_fsusage_space = no; then
   # Ultrix
   AC_MSG_CHECKING([for two-argument statfs with struct fs_data (Ultrix)])
   AC_CACHE_VAL([fu_cv_sys_stat_fs_data],
-  [AC_TRY_RUN([#include <sys/types.h>
+  [AC_RUN_IFELSE([AC_LANG_SOURCE([[
+#include <sys/types.h>
 #ifdef HAVE_SYS_PARAM_H
 #include <sys/param.h>
 #endif
@@ -205,10 +208,10 @@ if test $ac_fsusage_space = no; then
   /* Ultrix's statfs returns 1 for success,
      0 for not mounted, -1 for failure.  */
   return statfs (".", &fsd) != 1;
-  }],
-  fu_cv_sys_stat_fs_data=yes,
-  fu_cv_sys_stat_fs_data=no,
-  fu_cv_sys_stat_fs_data=no)])
+  }]])],
+    [fu_cv_sys_stat_fs_data=yes],
+    [fu_cv_sys_stat_fs_data=no],
+    [fu_cv_sys_stat_fs_data=no])])
   AC_MSG_RESULT([$fu_cv_sys_stat_fs_data])
   if test $fu_cv_sys_stat_fs_data = yes; then
     ac_fsusage_space=yes
@@ -220,12 +223,12 @@ fi
 
 if test $ac_fsusage_space = no; then
   # SVR2
-  AC_TRY_CPP([#include <sys/filsys.h>
-    ],
-    AC_DEFINE([STAT_READ_FILSYS], [1],
+  AC_PREPROC_IFELSE([AC_LANG_SOURCE([[#include <sys/filsys.h>
+        ]])],
+    [AC_DEFINE([STAT_READ_FILSYS], [1],
       [Define if there is no specific function for reading file systems usage
        information and you have the <sys/filsys.h> header file.  (SVR2)])
-    ac_fsusage_space=yes)
+     ac_fsusage_space=yes])
 fi
 
 AS_IF([test $ac_fsusage_space = yes], [$1], [$2])
@@ -246,8 +249,8 @@ choke -- this is a workaround for a Sun-specific problem
 #endif
 #include <sys/types.h>
 #include <sys/vfs.h>]],
-    [[struct statfs t; long c = *(t.f_spare);
-      if (c) return 0;]])],
+      [[struct statfs t; long c = *(t.f_spare);
+        if (c) return 0;]])],
     [fu_cv_sys_truncating_statfs=yes],
     [fu_cv_sys_truncating_statfs=no])])
   if test $fu_cv_sys_truncating_statfs = yes; then

gl/m4/getaddrinfo.m4

@@ -1,5 +1,5 @@
-# getaddrinfo.m4 serial 20
-dnl Copyright (C) 2004-2009 Free Software Foundation, Inc.
+# getaddrinfo.m4 serial 23
+dnl Copyright (C) 2004-2010 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -25,7 +25,7 @@ AC_DEFUN([gl_GETADDRINFO],
   LIBS="$gai_saved_LIBS $GETADDRINFO_LIB"
 
   AC_CACHE_CHECK([for getaddrinfo], [gl_cv_func_getaddrinfo], [
-    AC_TRY_LINK([
+    AC_LINK_IFELSE([AC_LANG_PROGRAM([[
 #include <sys/types.h>
 #ifdef HAVE_SYS_SOCKET_H
 #include <sys/socket.h>
@@ -34,21 +34,21 @@ AC_DEFUN([gl_GETADDRINFO],
 #include <netdb.h>
 #endif
 #include <stddef.h>
-], [getaddrinfo("", "", NULL, NULL);],
+]], [[getaddrinfo("", "", NULL, NULL);]])],
       [gl_cv_func_getaddrinfo=yes],
       [gl_cv_func_getaddrinfo=no])])
   if test $gl_cv_func_getaddrinfo = no; then
     AC_CACHE_CHECK([for getaddrinfo in ws2tcpip.h and -lws2_32],
-		   gl_cv_w32_getaddrinfo, [
+                   gl_cv_w32_getaddrinfo, [
       gl_cv_w32_getaddrinfo=no
       am_save_LIBS="$LIBS"
       LIBS="$LIBS -lws2_32"
-      AC_TRY_LINK([
+      AC_LINK_IFELSE([AC_LANG_PROGRAM([[
 #ifdef HAVE_WS2TCPIP_H
 #include <ws2tcpip.h>
 #endif
 #include <stddef.h>
-], [getaddrinfo(NULL, NULL, NULL, NULL);], gl_cv_w32_getaddrinfo=yes)
+]], [[getaddrinfo(NULL, NULL, NULL, NULL);]])], [gl_cv_w32_getaddrinfo=yes])
       LIBS="$am_save_LIBS"
     ])
     if test "$gl_cv_w32_getaddrinfo" = "yes"; then
@@ -64,7 +64,7 @@ AC_DEFUN([gl_GETADDRINFO],
   # header included somehow.
   AC_CACHE_CHECK([for gai_strerror (possibly via ws2tcpip.h)],
     gl_cv_func_gai_strerror, [
-      AC_TRY_LINK([
+      AC_LINK_IFELSE([AC_LANG_PROGRAM([[
 #include <sys/types.h>
 #ifdef HAVE_SYS_SOCKET_H
 #include <sys/socket.h>
@@ -76,7 +76,7 @@ AC_DEFUN([gl_GETADDRINFO],
 #include <ws2tcpip.h>
 #endif
 #include <stddef.h>
-], [gai_strerror (NULL);],
+]], [[gai_strerror (NULL);]])],
         [gl_cv_func_gai_strerror=yes],
         [gl_cv_func_gai_strerror=no])])
   if test $gl_cv_func_gai_strerror = no; then
@@ -96,6 +96,7 @@ AC_DEFUN([gl_PREREQ_GETADDRINFO], [
   AC_REQUIRE([gl_HEADER_SYS_SOCKET])dnl for HAVE_SYS_SOCKET_H, HAVE_WINSOCK2_H
   AC_REQUIRE([gl_HOSTENT]) dnl for HOSTENT_LIB
   AC_REQUIRE([gl_SERVENT]) dnl for SERVENT_LIB
+  AC_REQUIRE([gl_FUNC_INET_NTOP]) dnl for INET_NTOP_LIB
   AC_REQUIRE([AC_C_RESTRICT])
   AC_REQUIRE([gl_SOCKET_FAMILIES])
   AC_REQUIRE([gl_HEADER_SYS_SOCKET])
@@ -163,4 +164,10 @@ AC_DEFUN([gl_PREREQ_GETADDRINFO], [
     *" $SERVENT_LIB "*) ;;
     *) GETADDRINFO_LIB="$GETADDRINFO_LIB $SERVENT_LIB" ;;
   esac
+
+  dnl Append $INET_NTOP_LIB to GETADDRINFO_LIB, avoiding gratuitous duplicates.
+  case " $GETADDRINFO_LIB " in
+    *" $INET_NTOP_LIB "*) ;;
+    *) GETADDRINFO_LIB="$GETADDRINFO_LIB $INET_NTOP_LIB" ;;
+  esac
 ])

gl/m4/getdtablesize.m4

@@ -0,0 +1,15 @@
+# getdtablesize.m4 serial 1
+dnl Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_FUNC_GETDTABLESIZE],
+[
+  AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
+  AC_CHECK_FUNCS_ONCE([getdtablesize])
+  if test $ac_cv_func_getdtablesize != yes; then
+    HAVE_GETDTABLESIZE=0
+    AC_LIBOBJ([getdtablesize])
+  fi
+])

gl/m4/gethostname.m4

@@ -1,21 +1,101 @@
-# gethostname.m4 serial 5
-dnl Copyright (C) 2002, 2008, 2009 Free Software Foundation, Inc.
+# gethostname.m4 serial 9
+dnl Copyright (C) 2002, 2008, 2009, 2010 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 
+# Ensure
+# - the gethostname() function,
+# - the HOST_NAME_MAX macro in <limits.h>.
 AC_DEFUN([gl_FUNC_GETHOSTNAME],
 [
   AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
   gl_PREREQ_SYS_H_WINSOCK2
-  AC_REPLACE_FUNCS([gethostname])
-  if test $ac_cv_func_gethostname = no; then
+
+  dnl Where is gethostname() defined?
+  dnl - On native Windows, it is in ws2_32.dll.
+  dnl - Otherwise is is in libc.
+  GETHOSTNAME_LIB=
+  AC_CHECK_FUNCS([gethostname], , [
+    AC_CACHE_CHECK([for gethostname in winsock2.h and -lws2_32],
+      [gl_cv_w32_gethostname],
+      [gl_cv_w32_gethostname=no
+       gl_save_LIBS="$LIBS"
+       LIBS="$LIBS -lws2_32"
+       AC_LINK_IFELSE([AC_LANG_PROGRAM([[
+#ifdef HAVE_WINSOCK2_H
+#include <winsock2.h>
+#endif
+#include <stddef.h>
+]], [[gethostname(NULL, 0);]])], [gl_cv_w32_gethostname=yes])
+       LIBS="$gl_save_LIBS"
+      ])
+    if test "$gl_cv_w32_gethostname" = "yes"; then
+      GETHOSTNAME_LIB="-lws2_32"
+    fi
+  ])
+  AC_SUBST([GETHOSTNAME_LIB])
+
+  if test "$ac_cv_func_gethostname" = no; then
+    AC_LIBOBJ([gethostname])
     HAVE_GETHOSTNAME=0
     gl_PREREQ_GETHOSTNAME
   fi
+
+  dnl Also provide HOST_NAME_MAX when <limits.h> lacks it.
+  dnl - On most Unix systems, use MAXHOSTNAMELEN from <sys/param.h> instead.
+  dnl - On Solaris, Cygwin, BeOS, use MAXHOSTNAMELEN from <netdb.h> instead.
+  dnl - On mingw, use 256, because
+  dnl   <http://msdn.microsoft.com/en-us/library/ms738527.aspx> says:
+  dnl   "if a buffer of 256 bytes is passed in the name parameter and
+  dnl    the namelen parameter is set to 256, the buffer size will always
+  dnl    be adequate."
+  dnl With this, there is no need to use sysconf (_SC_HOST_NAME_MAX), which
+  dnl is not a compile-time constant.
+  dnl We cannot override <limits.h> using the usual technique, because
+  dnl gl_CHECK_NEXT_HEADERS does not work for <limits.h>. Therefore retrieve
+  dnl the value of HOST_NAME_MAX at configure time.
+  AC_CHECK_HEADERS_ONCE([sys/param.h])
+  AC_CHECK_HEADERS_ONCE([sys/socket.h])
+  AC_CHECK_HEADERS_ONCE([netdb.h])
+  AC_CACHE_CHECK([for HOST_NAME_MAX], [gl_cv_decl_HOST_NAME_MAX], [
+    gl_cv_decl_HOST_NAME_MAX=
+    AC_EGREP_CPP([lucky], [
+#include <limits.h>
+#ifdef HOST_NAME_MAX
+lucky
+#endif
+      ], [gl_cv_decl_HOST_NAME_MAX=yes])
+    if test -z "$gl_cv_decl_HOST_NAME_MAX"; then
+      dnl It's not defined in <limits.h>. Substitute it.
+      if test "$gl_cv_w32_gethostname" = yes; then
+        dnl mingw.
+        gl_cv_decl_HOST_NAME_MAX=256
+      else
+        _AC_COMPUTE_INT([MAXHOSTNAMELEN], [gl_cv_decl_HOST_NAME_MAX], [
+#include <sys/types.h>
+#if HAVE_SYS_PARAM_H
+# include <sys/param.h>
+#endif
+#if HAVE_SYS_SOCKET_H
+# include <sys/socket.h>
+#endif
+#if HAVE_NETDB_H
+# include <netdb.h>
+#endif
+])
+      fi
+    fi
+  ])
+  if test "$gl_cv_decl_HOST_NAME_MAX" != yes; then
+    AC_DEFINE_UNQUOTED([HOST_NAME_MAX], [$gl_cv_decl_HOST_NAME_MAX],
+      [Define HOST_NAME_MAX when <limits.h> does not define it.])
+  fi
 ])
 
 # Prerequisites of lib/gethostname.c.
 AC_DEFUN([gl_PREREQ_GETHOSTNAME], [
-  AC_CHECK_FUNCS([uname])
+  if test "$gl_cv_w32_gethostname" != "yes"; then
+    AC_CHECK_FUNCS([uname])
+  fi
 ])

gl/m4/getloadavg.m4

@@ -1,7 +1,7 @@
 # Check for getloadavg.
 
-# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1999, 2000, 2002, 2003,
-# 2006, 2008, 2009 Free Software Foundation, Inc.
+# Copyright (C) 1992-1996, 1999-2000, 2002-2003, 2006, 2008-2010 Free Software
+# Foundation, Inc.
 
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -60,17 +60,17 @@ if test $gl_have_func = no; then
   gl_getloadavg_LIBS=$LIBS
   LIBS="-L/usr/local/lib $LIBS"
   AC_CHECK_LIB([getloadavg], [getloadavg],
-	       [LIBS="-lgetloadavg $LIBS"], [LIBS=$gl_getloadavg_LIBS])
+               [LIBS="-lgetloadavg $LIBS"], [LIBS=$gl_getloadavg_LIBS])
 fi
 
 # Make sure it is really in the library, if we think we found it,
 # otherwise set up the replacement function.
 AC_CHECK_FUNCS([getloadavg], [],
-	       [gl_PREREQ_GETLOADAVG])
+               [gl_PREREQ_GETLOADAVG])
 
 # Some definitions of getloadavg require that the program be installed setgid.
 AC_CACHE_CHECK([whether getloadavg requires setgid],
-	       gl_cv_func_getloadavg_setgid,
+               gl_cv_func_getloadavg_setgid,
 [AC_EGREP_CPP([Yowza Am I SETGID yet],
 [#define CONFIGURING_GETLOADAVG
 #include "$srcdir/$1/getloadavg.c"
@@ -78,13 +78,13 @@ AC_CACHE_CHECK([whether getloadavg requires setgid],
 Yowza Am I SETGID yet
 #endif
 ],
-	      gl_cv_func_getloadavg_setgid=yes,
-	      gl_cv_func_getloadavg_setgid=no)])
+              gl_cv_func_getloadavg_setgid=yes,
+              gl_cv_func_getloadavg_setgid=no)])
 if test $gl_cv_func_getloadavg_setgid = yes; then
   NEED_SETGID=true
   AC_DEFINE([GETLOADAVG_PRIVILEGED], [1],
-	    [Define to 1 if the `getloadavg' function needs to be run setuid
-	     or setgid.])
+            [Define to 1 if the `getloadavg' function needs to be run setuid
+             or setgid.])
 else
   NEED_SETGID=false
 fi
@@ -98,8 +98,8 @@ if test $gl_cv_func_getloadavg_setgid = yes; then
   test -z "$ac_ls_output" && ac_ls_output=`ls -lg /dev/kmem`
   gl_cv_group_kmem=`echo $ac_ls_output \
     | sed -ne ['s/[	 ][	 ]*/ /g
-	       s/^.[sSrwx-]* *[0-9]* *\([^0-9]*\)  *.*/\1/
-	       / /s/.* //;p']`
+               s/^.[sSrwx-]* *[0-9]* *\([^0-9]*\)  *.*/\1/
+               / /s/.* //;p']`
 ])
   AC_SUBST([KMEM_GROUP], [$gl_cv_group_kmem])dnl
 fi
@@ -154,8 +154,8 @@ if test $gl_have_func = no; then
   [gl_have_func=yes
    AC_DEFINE([UMAX], [1], [Define to 1 for Encore UMAX.])
    AC_DEFINE([UMAX4_3], [1],
-	     [Define to 1 for Encore UMAX 4.3 that has <inq_status/cpustats.h>
-	      instead of <sys/cpustats.h>.])])
+             [Define to 1 for Encore UMAX 4.3 that has <inq_status/cpustats.h>
+              instead of <sys/cpustats.h>.])])
 fi
 
 if test $gl_have_func = no; then
@@ -169,10 +169,19 @@ fi
 
 AC_CHECK_HEADERS([nlist.h],
 [AC_CHECK_MEMBERS([struct nlist.n_un.n_name],
-		  [AC_DEFINE([NLIST_NAME_UNION], [1],
-			     [Define to 1 if your `struct nlist' has an
-			      `n_un' member.  Obsolete, depend on
-			      `HAVE_STRUCT_NLIST_N_UN_N_NAME])], [],
-		  [@%:@include <nlist.h>])
+                  [AC_DEFINE([NLIST_NAME_UNION], [1],
+                             [Define to 1 if your `struct nlist' has an
+                              `n_un' member.  Obsolete, depend on
+                              `HAVE_STRUCT_NLIST_N_UN_N_NAME])], [],
+                  [@%:@include <nlist.h>])
+ AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <nlist.h>]],
+                   [[struct nlist x;
+                    #ifdef HAVE_STRUCT_NLIST_N_UN_N_NAME
+                    x.n_un.n_name = "";
+                    #else
+                    x.n_name = "";
+                    #endif]])],
+                [AC_DEFINE([N_NAME_POINTER], [1],
+                           [Define to 1 if the nlist n_name member is a pointer])])
 ])dnl
 ])# gl_PREREQ_GETLOADAVG

gl/m4/getopt.m4

@@ -1,82 +1,272 @@
-# getopt.m4 serial 14
-dnl Copyright (C) 2002-2006, 2008 Free Software Foundation, Inc.
+# getopt.m4 serial 24
+dnl Copyright (C) 2002-2006, 2008-2010 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 
-# The getopt module assume you want GNU getopt, with getopt_long etc,
-# rather than vanilla POSIX getopt.  This means your code should
-# always include <getopt.h> for the getopt prototypes.
+# Request a POSIX compliant getopt function.
+AC_DEFUN([gl_FUNC_GETOPT_POSIX],
+[
+  m4_divert_text([DEFAULTS], [gl_getopt_required=POSIX])
+  AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
+  gl_GETOPT_IFELSE([
+    gl_REPLACE_GETOPT
+  ],
+  [])
+])
+
+# Request a POSIX compliant getopt function with GNU extensions (such as
+# options with optional arguments) and the functions getopt_long,
+# getopt_long_only.
+AC_DEFUN([gl_FUNC_GETOPT_GNU],
+[
+  m4_divert_text([INIT_PREPARE], [gl_getopt_required=GNU])
+
+  AC_REQUIRE([gl_FUNC_GETOPT_POSIX])
+])
 
-AC_DEFUN([gl_GETOPT_SUBSTITUTE],
+# Request the gnulib implementation of the getopt functions unconditionally.
+# argp.m4 uses this.
+AC_DEFUN([gl_REPLACE_GETOPT],
 [
+  dnl Arrange for getopt.h to be created.
+  gl_GETOPT_SUBSTITUTE_HEADER
+  dnl Arrange for unistd.h to include getopt.h.
+  GNULIB_UNISTD_H_GETOPT=1
+  dnl Arrange to compile the getopt implementation.
   AC_LIBOBJ([getopt])
   AC_LIBOBJ([getopt1])
-  gl_GETOPT_SUBSTITUTE_HEADER
   gl_PREREQ_GETOPT
 ])
 
-AC_DEFUN([gl_GETOPT_SUBSTITUTE_HEADER],
+# emacs' configure.in uses this.
+AC_DEFUN([gl_GETOPT_IFELSE],
 [
-  GETOPT_H=getopt.h
-  AC_DEFINE([__GETOPT_PREFIX], [[rpl_]],
-    [Define to rpl_ if the getopt replacement functions and variables
-     should be used.])
-  AC_SUBST([GETOPT_H])
+  AC_REQUIRE([gl_GETOPT_CHECK_HEADERS])
+  AS_IF([test -n "$gl_replace_getopt"], [$1], [$2])
 ])
 
+# Determine whether to replace the entire getopt facility.
 AC_DEFUN([gl_GETOPT_CHECK_HEADERS],
 [
-  if test -z "$GETOPT_H"; then
-    AC_CHECK_HEADERS([getopt.h], [], [GETOPT_H=getopt.h])
+  AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
+
+  dnl Persuade Solaris <unistd.h> to declare optarg, optind, opterr, optopt.
+  AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
+
+  gl_CHECK_NEXT_HEADERS([getopt.h])
+  AC_CHECK_HEADERS_ONCE([getopt.h])
+  if test $ac_cv_header_getopt_h = yes; then
+    HAVE_GETOPT_H=1
+  else
+    HAVE_GETOPT_H=0
+  fi
+  AC_SUBST([HAVE_GETOPT_H])
+
+  gl_replace_getopt=
+
+  dnl Test whether <getopt.h> is available.
+  if test -z "$gl_replace_getopt" && test $gl_getopt_required = GNU; then
+    AC_CHECK_HEADERS([getopt.h], [], [gl_replace_getopt=yes])
+  fi
+
+  dnl Test whether the function getopt_long is available.
+  if test -z "$gl_replace_getopt" && test $gl_getopt_required = GNU; then
+    AC_CHECK_FUNCS([getopt_long_only], [], [gl_replace_getopt=yes])
   fi
 
-  if test -z "$GETOPT_H"; then
-    AC_CHECK_FUNCS([getopt_long_only], [], [GETOPT_H=getopt.h])
+  dnl BSD getopt_long uses an incompatible method to reset option processing.
+  dnl Existence of the variable, in and of itself, is not a reason to replace
+  dnl getopt, but knowledge of the variable is needed to determine how to
+  dnl reset and whether a reset reparses the environment.
+  if test -z "$gl_replace_getopt" && test $gl_getopt_required = GNU; then
+    AC_CHECK_DECLS([optreset], [], [],
+      [[#include <getopt.h>]])
   fi
 
-  dnl BSD getopt_long uses an incompatible method to reset option processing,
-  dnl and (as of 2004-10-15) mishandles optional option-arguments.
-  if test -z "$GETOPT_H"; then
-    AC_CHECK_DECL([optreset], [GETOPT_H=getopt.h], [], [#include <getopt.h>])
+  dnl mingw's getopt (in libmingwex.a) does weird things when the options
+  dnl strings starts with '+' and it's not the first call.  Some internal state
+  dnl is left over from earlier calls, and neither setting optind = 0 nor
+  dnl setting optreset = 1 get rid of this internal state.
+  dnl POSIX is silent on optind vs. optreset, so we allow either behavior.
+  if test -z "$gl_replace_getopt"; then
+    AC_CACHE_CHECK([whether getopt is POSIX compatible],
+      [gl_cv_func_getopt_posix],
+      [
+        dnl This test fails on mingw and succeeds on all other platforms.
+        AC_RUN_IFELSE([AC_LANG_SOURCE([[
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+
+#if !HAVE_DECL_OPTRESET
+# define OPTIND_MIN 0
+#else
+# define OPTIND_MIN 1
+#endif
+
+int
+main ()
+{
+  {
+    int argc = 0;
+    char *argv[10];
+    int c;
+
+    argv[argc++] = "program";
+    argv[argc++] = "-a";
+    argv[argc++] = "foo";
+    argv[argc++] = "bar";
+    argv[argc] = NULL;
+    optind = OPTIND_MIN;
+    opterr = 0;
+
+    c = getopt (argc, argv, "ab");
+    if (!(c == 'a'))
+      return 1;
+    c = getopt (argc, argv, "ab");
+    if (!(c == -1))
+      return 2;
+    if (!(optind == 2))
+      return 3;
+  }
+  /* Some internal state exists at this point.  */
+  {
+    int argc = 0;
+    char *argv[10];
+    int c;
+
+    argv[argc++] = "program";
+    argv[argc++] = "donald";
+    argv[argc++] = "-p";
+    argv[argc++] = "billy";
+    argv[argc++] = "duck";
+    argv[argc++] = "-a";
+    argv[argc++] = "bar";
+    argv[argc] = NULL;
+    optind = OPTIND_MIN;
+    opterr = 0;
+
+    c = getopt (argc, argv, "+abp:q:");
+    if (!(c == -1))
+      return 4;
+    if (!(strcmp (argv[0], "program") == 0))
+      return 5;
+    if (!(strcmp (argv[1], "donald") == 0))
+      return 6;
+    if (!(strcmp (argv[2], "-p") == 0))
+      return 7;
+    if (!(strcmp (argv[3], "billy") == 0))
+      return 8;
+    if (!(strcmp (argv[4], "duck") == 0))
+      return 9;
+    if (!(strcmp (argv[5], "-a") == 0))
+      return 10;
+    if (!(strcmp (argv[6], "bar") == 0))
+      return 11;
+    if (!(optind == 1))
+      return 12;
+  }
+
+  return 0;
+}
+]])],
+          [gl_cv_func_getopt_posix=yes], [gl_cv_func_getopt_posix=no],
+          [case "$host_os" in
+             mingw*) gl_cv_func_getopt_posix="guessing no";;
+             *)      gl_cv_func_getopt_posix="guessing yes";;
+           esac
+          ])
+      ])
+    case "$gl_cv_func_getopt_posix" in
+      *no) gl_replace_getopt=yes ;;
+    esac
   fi
 
-  dnl Solaris 10 getopt doesn't handle `+' as a leading character in an
-  dnl option string (as of 2005-05-05).
-  if test -z "$GETOPT_H"; then
-    AC_CACHE_CHECK([for working GNU getopt function], [gl_cv_func_gnu_getopt],
-      [AC_RUN_IFELSE(
-	[AC_LANG_PROGRAM([[#include <getopt.h>]],
-	   [[
-	     char *myargv[3];
-	     myargv[0] = "conftest";
-	     myargv[1] = "-+";
-	     myargv[2] = 0;
-	     return getopt (2, myargv, "+a") != '?';
-	   ]])],
-	[gl_cv_func_gnu_getopt=yes],
-	[gl_cv_func_gnu_getopt=no],
-	[dnl cross compiling - pessimistically guess based on decls
-	 dnl Solaris 10 getopt doesn't handle `+' as a leading character in an
-	 dnl option string (as of 2005-05-05).
-	 AC_CHECK_DECL([getopt_clip],
-	   [gl_cv_func_gnu_getopt=no], [gl_cv_func_gnu_getopt=yes],
-	   [#include <getopt.h>])])])
-    if test "$gl_cv_func_gnu_getopt" = "no"; then
-      GETOPT_H=getopt.h
+  if test -z "$gl_replace_getopt" && test $gl_getopt_required = GNU; then
+    AC_CACHE_CHECK([for working GNU getopt function], [gl_cv_func_getopt_gnu],
+      [# Even with POSIXLY_CORRECT, the GNU extension of leading '-' in the
+       # optstring is necessary for programs like m4 that have POSIX-mandated
+       # semantics for supporting options interspersed with files.
+       # Also, since getopt_long is a GNU extension, we require optind=0.
+       gl_had_POSIXLY_CORRECT=${POSIXLY_CORRECT:+yes}
+       POSIXLY_CORRECT=1
+       export POSIXLY_CORRECT
+       AC_RUN_IFELSE(
+        [AC_LANG_PROGRAM([[#include <getopt.h>
+                           #include <stddef.h>
+                           #include <string.h>
+           ]], [[
+             /* This code succeeds on glibc 2.8, OpenBSD 4.0, Cygwin, mingw,
+                and fails on MacOS X 10.5, AIX 5.2, HP-UX 11, IRIX 6.5,
+                OSF/1 5.1, Solaris 10.  */
+             {
+               char *myargv[3];
+               myargv[0] = "conftest";
+               myargv[1] = "-+";
+               myargv[2] = 0;
+               opterr = 0;
+               if (getopt (2, myargv, "+a") != '?')
+                 return 1;
+             }
+             /* This code succeeds on glibc 2.8, mingw,
+                and fails on MacOS X 10.5, OpenBSD 4.0, AIX 5.2, HP-UX 11,
+                IRIX 6.5, OSF/1 5.1, Solaris 10, Cygwin 1.5.x.  */
+             {
+               char *argv[] = { "program", "-p", "foo", "bar", NULL };
+
+               optind = 1;
+               if (getopt (4, argv, "p::") != 'p')
+                 return 2;
+               if (optarg != NULL)
+                 return 3;
+               if (getopt (4, argv, "p::") != -1)
+                 return 4;
+               if (optind != 2)
+                 return 5;
+             }
+             /* This code succeeds on glibc 2.8 and fails on Cygwin 1.7.0.  */
+             {
+               char *argv[] = { "program", "foo", "-p", NULL };
+               optind = 0;
+               if (getopt (3, argv, "-p") != 1)
+                 return 6;
+               if (getopt (3, argv, "-p") != 'p')
+                 return 7;
+             }
+             return 0;
+           ]])],
+        [gl_cv_func_getopt_gnu=yes],
+        [gl_cv_func_getopt_gnu=no],
+        [dnl Cross compiling. Guess based on host and declarations.
+         case $host_os:$ac_cv_have_decl_optreset in
+           *-gnu*:* | mingw*:*) gl_cv_func_getopt_gnu=no;;
+           *:yes)               gl_cv_func_getopt_gnu=no;;
+           *)                   gl_cv_func_getopt_gnu=yes;;
+         esac
+        ])
+       if test "$gl_had_POSIXLY_CORRECT" != yes; then
+         AS_UNSET([POSIXLY_CORRECT])
+       fi
+      ])
+    if test "$gl_cv_func_getopt_gnu" = "no"; then
+      gl_replace_getopt=yes
     fi
   fi
 ])
 
-AC_DEFUN([gl_GETOPT_IFELSE],
+# emacs' configure.in uses this.
+AC_DEFUN([gl_GETOPT_SUBSTITUTE_HEADER],
 [
-  AC_REQUIRE([gl_GETOPT_CHECK_HEADERS])
-  AS_IF([test -n "$GETOPT_H"], [$1], [$2])
+  GETOPT_H=getopt.h
+  AC_DEFINE([__GETOPT_PREFIX], [[rpl_]],
+    [Define to rpl_ if the getopt replacement functions and variables
+     should be used.])
+  AC_SUBST([GETOPT_H])
 ])
 
-AC_DEFUN([gl_GETOPT], [gl_GETOPT_IFELSE([gl_GETOPT_SUBSTITUTE])])
-
 # Prerequisites of lib/getopt*.
+# emacs' configure.in uses this.
 AC_DEFUN([gl_PREREQ_GETOPT],
 [
   AC_CHECK_DECLS_ONCE([getenv])

gl/m4/gettext.m4

@@ -1,5 +1,5 @@
 # gettext.m4 serial 62 (gettext-0.18)
-dnl Copyright (C) 1995-2009 Free Software Foundation, Inc.
+dnl Copyright (C) 1995-2010 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.

gl/m4/glibc2.m4

@@ -1,5 +1,5 @@
 # glibc2.m4 serial 2
-dnl Copyright (C) 2000-2002, 2004, 2008 Free Software Foundation, Inc.
+dnl Copyright (C) 2000-2002, 2004, 2008-2010 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -12,16 +12,16 @@ AC_DEFUN([gt_GLIBC2],
     AC_CACHE_CHECK([whether we are using the GNU C Library 2 or newer],
       [ac_cv_gnu_library_2],
       [AC_EGREP_CPP([Lucky GNU user],
-	[
+        [
 #include <features.h>
 #ifdef __GNU_LIBRARY__
  #if (__GLIBC__ >= 2)
   Lucky GNU user
  #endif
 #endif
-	],
-	[ac_cv_gnu_library_2=yes],
-	[ac_cv_gnu_library_2=no])
+        ],
+        [ac_cv_gnu_library_2=yes],
+        [ac_cv_gnu_library_2=no])
       ]
     )
     AC_SUBST([GLIBC2])

gl/m4/glibc21.m4

@@ -1,5 +1,5 @@
 # glibc21.m4 serial 4
-dnl Copyright (C) 2000-2002, 2004, 2008 Free Software Foundation, Inc.
+dnl Copyright (C) 2000-2002, 2004, 2008-2010 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -12,16 +12,16 @@ AC_DEFUN([gl_GLIBC21],
     AC_CACHE_CHECK([whether we are using the GNU C Library 2.1 or newer],
       [ac_cv_gnu_library_2_1],
       [AC_EGREP_CPP([Lucky GNU user],
-	[
+        [
 #include <features.h>
 #ifdef __GNU_LIBRARY__
  #if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1) || (__GLIBC__ > 2)
   Lucky GNU user
  #endif
 #endif
-	],
-	[ac_cv_gnu_library_2_1=yes],
-	[ac_cv_gnu_library_2_1=no])
+        ],
+        [ac_cv_gnu_library_2_1=yes],
+        [ac_cv_gnu_library_2_1=no])
       ]
     )
     AC_SUBST([GLIBC21])

gl/m4/gnulib-cache.m4

@@ -1,4 +1,4 @@
-# Copyright (C) 2002-2009 Free Software Foundation, Inc.
+# Copyright (C) 2002-2010 Free Software Foundation, Inc.
 #
 # This file is free software, distributed under the terms of the GNU
 # General Public License.  As a special exception to the GNU General