dnl Process this file with autoconf to produce a configure script.
dnl
dnl

AC_PREREQ(2.59)
AC_INIT([wraith],[],[wraith@botpack.net])
AC_CONFIG_SRCDIR(src/eggdrop.h)
AC_CONFIG_HEADER(src/config.h)
AC_COPYRIGHT([Copyright (c) Bryan Drewery])
AC_REVISION($Revision$)

EGG_SAVE_PARAMETERS

# Setup build environment
dnl Search for newer gcc versions before older
#AC_REQUIRE_CPP
AC_LANG(C++)
AC_PROG_CXX([g++8 g++7 g++6 g++5 g++49 g++-4.9 g++48 g++-4.8 g++47 g++-4.7 g++46 g++-4.6 eg++ g++ c++ CC cxx cc++])
CC="${CXX} -x c"
AC_SUBST(CC)
EGG_CHECK_CC
#CXX_RPATH_CHECK

#checkpoint
AC_CACHE_SAVE 

# Speedup compile
EGG_CHECK_CCWALL
EGG_CHECK_CCPIPE
AX_CXX_COMPILE_STDCXX_11([noext], [optional])
if [[ "${HAVE_CXX11}" -eq 0 ]]; then
  CXX_FLAG_CHECK([CXXFLAGS], [-std=c++0x], [cxx0x])
fi
CXX_FLAG_CHECK([CXXFLAGS], [-fcolor-diagnostics], [colordiagnostics])
#CXX_FLAG_CHECK([CXXFLAGS], [-Qunused-arguments], [unusedarguments])
CXX_FLAG_CHECK_NO([CXXFLAGS], [-Winvalid-source-encoding], [-Wno-invalid-source-encoding], [invalid_source_encoding])
CXX_FLAG_CHECK_NO([CXXFLAGS], [-Wcast-function-type], [-Wno-cast-function-type], [no_cast_function_type])
CXX_FLAG_CHECK([CXXFLAGS], [-Wimplicit-fallthrough=0], [wimplicit_fallthrough])
CXX_FLAG_CHECK([CXXFLAGS], [-fstack-protector], [stackprotector])
CXX_FLAG_CHECK([CXXFLAGS], [-fstack-protector-strong], [stackprotectorstrong])
if [[ "${ax_cv_prog_cc_stackprotectorstrong}" = "yes" ]]; then
  LDFLAGS="${LDFLAGS} -fstack-protector-strong"
elif [[ "${ax_cv_prog_cc_stackprotector}" = "yes" ]]; then
  LDFLAGS="${LDFLAGS} -fstack-protector"
fi
CXX_FLAG_CHECK([DEBCXXFLAGS], [-Og], [Og])
if [[ "${ax_cv_prog_cc_Og}" = "no" ]]; then
  DEBCXXFLAGS="${DEBCXXFLAGS} -O0"
fi
CXX_FLAG_CHECK_LINK([DEBCXXFLAGS], [-fsanitize=address], [fsanitize_address])
if [[ "${ax_cv_prog_cc_fsanitize_address}" = "yes" ]]; then
  DEBLDFLAGS="${DEBLDFLAGS} -fsanitize=address"
  DEBCXXFLAGS="${DEBCXXFLAGS} -D__SANITIZE_ADDRESS__"
fi
CXX_FLAG_CHECK([DEBCXXFLAGS], [-fstack-protector-all], [stackprotectorall])
CXX_FLAG_CHECK([DEBCXXFLAGS], [-Wconditional-uninitialized], [w_conditional_uninitialized])
CXX_FLAG_CHECK([LDFLAGS], [-static-libstdc++], [static_libstdcxx])
#CXX_FLAG_CHECK([LDFLAGS], [-static-libgcc], [static_libgcc])
if [[ "${ax_cv_prog_cc_static_libstdcxx}" = "yes" ]]; then
  AC_MSG_CHECKING([for static libstdc++])
  AC_TRY_LINK([], [], [AC_MSG_RESULT(OK)],
    [
     AC_MSG_RESULT([not found.])
     AC_MSG_ERROR([Static libstdc++ is rquired to build.], 1)
    ]
  )
fi

EGG_CHECK_DEPMODE

#checkpoint
AC_CACHE_SAVE 

# Checks for programs
AC_PROG_MAKE_SET
AC_PROG_SED
EGG_PROG_HEAD_1
EGG_PROG_AWK
EGG_PROG_BASENAME
AC_CHECK_PROG(OBJCOPY, objcopy, [objcopy --remove-section=.note --remove-section=.comment], touch)
AC_CHECK_PROG(STRIP, strip, strip, touch)
AC_CHECK_PROG(DIFF, gdiff, gdiff, diff)
AC_CHECK_PROG(UNAME, uname, uname)

# Test the os and set the module linking settings
EGG_CHECK_OS

# Check for IPv6 support
#EGG_IPV6_SUPPORTED
EGG_IPV6_OPTIONS
EGG_CHECK_SOCKLEN_T

# Check for inconsistent random() functions
EGG_CHECK_RANDOM_MAX

# Create static binaries
EGG_CHECK_CCSTATIC
AC_SUBST(DEBCXXFLAGS)
AC_SUBST(DEBLDFLAGS)

#checkpoint
AC_CACHE_SAVE 

# Checks for system libraries
EGG_CHECK_LIBS
CHECK_LIBELF

# Checks for header files
AC_HEADER_DIRENT
AC_HEADER_SYS_WAIT
AC_HEADER_TIME
AC_HEADER_STAT
#checkpoint
AC_CACHE_SAVE 
AC_CHECK_HEADERS([stdarg.h arpa/inet.h fcntl.h limits.h locale.h netdb.h netinet/in.h])
AC_CHECK_HEADERS([sys/file.h sys/ioctl.h sys/param.h sys/socket.h wchar.h])
AC_CHECK_HEADERS([sys/ptrace.h paths.h sys/prctl.h sys/procctl.h])

#checkpoint
AC_CACHE_SAVE
#AC_CHECK_HEADERS(openssl/ssl.h openssl/crypto.h)
#AC_CHECK_HEADERS(zlib.h)
CHECK_SSL

# TCL checks

# Tcl version to recommend if no Tcl is found, and the site where it can be
# found for download.
tclrecommendver="8.5.X"
tclrecommendsite="ftp://tcl.activestate.com/pub/tcl/tcl8_5/"

# Tcl library filename prefixes, suffixes, and search paths.
tcllibnames="tcl8.6 tcl86 tcl8.5 tcl85 tcl8.4 tcl84 tcl8.3 tcl83 tcl8.2 tcl82 \
             tcl8.1 tcl81 tcl8.0 tcl80 tcl tcl7.6 tcl76 tcl7.5 tcl75 \
             tcl7.4 tcl74 tcl7.3 tcl73 tcl7.2 tcl72 tcl7.1 tcl71 \
             tcl7.0 tcl70"

tcllibextensions=".so .so.1 .so.1.0 .so.1.1 .so.1.2 .dll .dylib .sl .a"

tcllibpaths="$HOME/lib $HOME/tcl/lib \
             /usr/local/lib /usr/lib /lib /lib64 /usr/lib64 \
             /usr/local/lib/tcl8.6 /usr/lib/tcl8.6 \
             /usr/local/lib/tcl8.5 /usr/lib/tcl8.5 \
             /usr/local/lib/tcl8.4 /usr/lib/tcl8.4 \
             /usr/local/lib/tcl8.3 /usr/lib/tcl8.3 \
             /usr/local/pkgs/tcl/lib /sys/lib /usr/pkg/lib \
             /usr/i486-linuxaout/lib /beos/system/lib $HOME"

# Tcl header filenames and search paths.
tclheadernames="tcl.h"
tclheaderpaths="$HOME/include $HOME/tcl/include \
                /usr/local/include /usr/include \
                /usr/local/include/tcl8.6 /usr/include/tcl8.6 \
                /usr/local/include/tcl8.5 /usr/include/tcl8.5 \
                /usr/local/include/tcl8.4 /usr/include/tcl8.4 \
                /usr/local/include/tcl8.3 /usr/include/tcl8.3 \
                /usr/local/pkgs/tcl/include /sys/include \
                /usr/pkg/lib /beos/system/include /beos/devel/include $HOME"


# Misc Tcl checks.
EGG_TCL_OPTIONS
EGG_TCL_ENV
EGG_TCL_WITH_TCLLIB
EGG_TCL_WITH_TCLINC
EGG_TCL_FIND_LIBRARY
EGG_TCL_FIND_HEADER
EGG_TCL_CHECK_LIBRARY
EGG_TCL_CHECK_HEADER
EGG_TCL_DETECT_CHANGE
EGG_TCL_CHECK_VERSION
EGG_TCL_CHECK_PRE70
EGG_TCL_TESTLIBS
EGG_TCL_CHECK_FREE
#EGG_TCL_CHECK_GETCURRENTTHREAD
#EGG_TCL_CHECK_GETTHREADDATA
EGG_TCL_CHECK_SETNOTIFIER
EGG_TCL_LIB_REQS

AC_CACHE_SAVE

# Checks for typedefs, structures, and compiler characteristics
AC_TYPE_PID_T
AC_TYPE_SIZE_T
AC_TYPE_UID_T


#AC_C_CONST
AC_C_VOLATILE
AC_C_BIGENDIAN(AC_DEFINE(B_ENDIAN, 1, [big endian]),AC_DEFINE(L_ENDIAN, 1, [little endian]))
#AC_C_INLINE
AC_C_CHAR_UNSIGNED
#AC_C_STRINGIZE
#AC_C_PROTOTYPES

#checkpoint
AC_CACHE_SAVE 

# Checks for typedefs, structures, and compiler characteristics
AC_TYPE_PID_T
AC_TYPE_SIZE_T
AC_TYPE_UID_T
AC_TYPE_LONG_LONG_INT
AC_TYPE_INT8_T
AC_TYPE_UINT8_T
AC_TYPE_INT16_T
AC_TYPE_UINT16_T
AC_TYPE_INT32_T
AC_TYPE_UINT32_T
AC_TYPE_INT64_T
AC_TYPE_UINT64_T


AC_STRUCT_TIMEZONE
AC_STRUCT_TM

# Checks for library functions
AC_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK
AC_FUNC_MMAP
EGG_FUNC_TIMESPEC

#checkpoint
AC_CACHE_SAVE
AC_CHECK_FUNCS([getrusage getpassphrase posix_madvise madvise])
AC_CHECK_FUNCS([memmem random snprintf srandom gettime])
#checkpoint
AC_CACHE_SAVE
AC_CHECK_FUNCS([vsnprintf prctl procctl closefrom])

#autoscan suggested this....
#These are recommended by autoscan, but no code supports it currently
#AC_CHECK_FUNCS([alarm bzero dup2 getcwd gethostbyaddr gethostname getpass gettimeofday mbrlen
#mkdir munmap realpath select setlocale socket strchr strerror strpbrk strrchr strstr strtol tzset])

EGG_CHECK_FUNC_VSPRINTF
EGG_CHECK_FUNC_UNAME

# Make sure we have stdc headers, since we can't compile without them
EGG_HEADER_STDC

#checkpoint
AC_CACHE_SAVE 

EGG_SUBST_VERSION
#FIND_WRAPS
DO_DEPS

AC_CONFIG_FILES([Makefile lib/Makefile src/Makefile src/buildinfo.h])
AC_OUTPUT

AH_TEMPLATE(HAVE_ST_MTIM, [Define to 1 if your struct stat has an st_mtim member])
AH_TEMPLATE(HAVE_ST_MTIMESPEC, [Define to 1 if your struct stat has an st_mtimespec member])
AH_TEMPLATE(HAVE_TIMESPEC, [Define to 1 if you have struct timespec in sys/time.h])
AH_TEMPLATE(HAVE_TIMESPECSUB2, [Define to 1 if you have a timespecsub macro or function that takes two arguments (not three)])
AH_BOTTOM([#include "config-sanity.h"])

[
GIT_REQUIRED=1
if [ "$GIT_REQUIRED" = "1" ]; then
  if ! test -d .git; then
    echo ""
    echo ""
    echo "You have downloaded a GIT version of wraith."
    echo "Either 'git clone' from a git repository or download a source tarball"
    echo "A distribution version can be found at https://github.com/wraith/wraith/wiki/Download"
    echo ""
    echo ""
    exit 1
  fi
fi
]

[
if test -d .git; then
  git submodule init
  git submodule update
  git submodule foreach --recursive git clean -fdx
  # Restore as it may have been removed by an older 'make distclean'
  if ! test -f src/response.h; then
    git checkout src/response.h
  fi
fi
]

echo
echo
echo "------------ Configuring BDLIB ------------"
[[ -f lib/bdlib/configure ]] && ( cd lib/bdlib && CXX="$CXX" ./configure )

if [[ -n "${LIBELF_BUNDLED}" ]] && [[ -f lib/libelf/configure ]]; then
  echo
  echo
  echo "------------ Configuring LIBELF ------------"
  ( cd lib/libelf && CC="$CC" CXX="$CXX" ./configure )
fi

CXX="$CXX" CXXFLAGS="$CXXFLAGS" TCL_INCLUDES="$TCL_INCLUDES" SSL_INCLUDES="$SSL_INCLUDES" SED="$SED" src/generate_defs.sh
[
if [ $? -ne 0 ]; then
  exit 1
fi
]