|
|
@@ -0,0 +1,108 @@
|
|
|
+#serial 9
|
|
|
+
|
|
|
+# A replacement for autoconf's macro by the same name. This version
|
|
|
+# accepts an optional argument specifying the name of the $srcdir-relative
|
|
|
+# directory in which the file getloadavg.c may be found. It is unusual
|
|
|
+# (but justified, imho) that this file is required at ./configure time.
|
|
|
+
|
|
|
+undefine([AC_FUNC_GETLOADAVG])
|
|
|
+
|
|
|
+# AC_FUNC_GETLOADAVG
|
|
|
+# ------------------
|
|
|
+AC_DEFUN([AC_FUNC_GETLOADAVG],
|
|
|
+[ac_have_func=no # yes means we've found a way to get the load average.
|
|
|
+
|
|
|
+AC_CHECK_HEADERS(locale.h unistd.h mach/mach.h fcntl.h)
|
|
|
+AC_CHECK_FUNCS(setlocale)
|
|
|
+
|
|
|
+# By default, expect to find getloadavg.c in $srcdir/.
|
|
|
+ac_lib_dir_getloadavg=$srcdir
|
|
|
+# But if there's an argument, DIR, expect to find getloadavg.c in $srcdir/DIR.
|
|
|
+m4_ifval([$1], [ac_lib_dir_getloadavg=$srcdir/$1])
|
|
|
+# Make sure getloadavg.c is where it belongs, at ./configure-time.
|
|
|
+test -f $ac_lib_dir_getloadavg/getloadavg.c \
|
|
|
+ || AC_MSG_ERROR([getloadavg.c is not in $ac_lib_dir_getloadavg])
|
|
|
+# FIXME: Add an autoconf-time test, too?
|
|
|
+
|
|
|
+ac_save_LIBS=$LIBS
|
|
|
+
|
|
|
+# Check for getloadavg, but be sure not to touch the cache variable.
|
|
|
+(AC_CHECK_FUNC(getloadavg, exit 0, exit 1)) && ac_have_func=yes
|
|
|
+
|
|
|
+# On HPUX9, an unprivileged user can get load averages through this function.
|
|
|
+AC_CHECK_FUNCS(pstat_getdynamic)
|
|
|
+
|
|
|
+# Solaris has libkstat which does not require root.
|
|
|
+AC_CHECK_LIB(kstat, kstat_open)
|
|
|
+test $ac_cv_lib_kstat_kstat_open = yes && ac_have_func=yes
|
|
|
+
|
|
|
+# Some systems with -lutil have (and need) -lkvm as well, some do not.
|
|
|
+# On Solaris, -lkvm requires nlist from -lelf, so check that first
|
|
|
+# to get the right answer into the cache.
|
|
|
+# For kstat on solaris, we need libelf to force the definition of SVR4 below.
|
|
|
+if test $ac_have_func = no; then
|
|
|
+ AC_CHECK_LIB(elf, elf_begin, LIBS="-lelf $LIBS")
|
|
|
+fi
|
|
|
+if test $ac_have_func = no; then
|
|
|
+ AC_CHECK_LIB(kvm, kvm_open, LIBS="-lkvm $LIBS")
|
|
|
+ # Check for the 4.4BSD definition of getloadavg.
|
|
|
+ AC_CHECK_LIB(util, getloadavg,
|
|
|
+ [LIBS="-lutil $LIBS" ac_have_func=yes ac_cv_func_getloadavg_setgid=yes])
|
|
|
+fi
|
|
|
+
|
|
|
+if test $ac_have_func = no; then
|
|
|
+ # There is a commonly available library for RS/6000 AIX.
|
|
|
+ # Since it is not a standard part of AIX, it might be installed locally.
|
|
|
+ ac_getloadavg_LIBS=$LIBS
|
|
|
+ LIBS="-L/usr/local/lib $LIBS"
|
|
|
+ AC_CHECK_LIB(getloadavg, getloadavg,
|
|
|
+ [LIBS="-lgetloadavg $LIBS"], [LIBS=$ac_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, [],
|
|
|
+ [_AC_LIBOBJ_GETLOADAVG])
|
|
|
+
|
|
|
+# Some definitions of getloadavg require that the program be installed setgid.
|
|
|
+AC_CACHE_CHECK(whether getloadavg requires setgid,
|
|
|
+ ac_cv_func_getloadavg_setgid,
|
|
|
+[AC_EGREP_CPP([Yowza Am I SETGID yet],
|
|
|
+[#include "$ac_lib_dir_getloadavg/getloadavg.c"
|
|
|
+#ifdef LDAV_PRIVILEGED
|
|
|
+Yowza Am I SETGID yet
|
|
|
+@%:@endif],
|
|
|
+ ac_cv_func_getloadavg_setgid=yes,
|
|
|
+ ac_cv_func_getloadavg_setgid=no)])
|
|
|
+if test $ac_cv_func_getloadavg_setgid = yes; then
|
|
|
+ NEED_SETGID=true
|
|
|
+ AC_DEFINE(GETLOADAVG_PRIVILEGED, 1,
|
|
|
+ [Define if the `getloadavg' function needs to be run setuid
|
|
|
+ or setgid.])
|
|
|
+else
|
|
|
+ NEED_SETGID=false
|
|
|
+fi
|
|
|
+AC_SUBST(NEED_SETGID)dnl
|
|
|
+
|
|
|
+if test $ac_cv_func_getloadavg_setgid = yes; then
|
|
|
+ AC_CACHE_CHECK(group of /dev/kmem, ac_cv_group_kmem,
|
|
|
+[ # On Solaris, /dev/kmem is a symlink. Get info on the real file.
|
|
|
+ ac_ls_output=`ls -lgL /dev/kmem 2>/dev/null`
|
|
|
+ # If we got an error (system does not support symlinks), try without -L.
|
|
|
+ test -z "$ac_ls_output" && ac_ls_output=`ls -lg /dev/kmem`
|
|
|
+ ac_cv_group_kmem=`echo $ac_ls_output \
|
|
|
+ | sed -ne ['s/[ ][ ]*/ /g;
|
|
|
+ s/^.[sSrwx-]* *[0-9]* *\([^0-9]*\) *.*/\1/;
|
|
|
+ / /s/.* //;p;']`
|
|
|
+])
|
|
|
+ AC_SUBST(KMEM_GROUP, $ac_cv_group_kmem)dnl
|
|
|
+fi
|
|
|
+if test "x$ac_save_LIBS" = x; then
|
|
|
+ GETLOADAVG_LIBS=$LIBS
|
|
|
+else
|
|
|
+ GETLOADAVG_LIBS=`echo "$LIBS" | sed "s!$ac_save_LIBS!!"`
|
|
|
+fi
|
|
|
+LIBS=$ac_save_LIBS
|
|
|
+
|
|
|
+AC_SUBST(GETLOADAVG_LIBS)dnl
|
|
|
+])# AC_FUNC_GETLOADAVG
|
Ton Voon