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gambas-source-code/acinclude.m4
Benoît Minisini 542d72d39d Do not try to disable CTE support if gcc does not have the corresponding flag. 
[CONFIGURATION]
* BUG: Do not try to disable CTE support if gcc does not have the corresponding flag.

[INTERPRETER]
* BUG: Do not try to disable CTE support if gcc does not have the corresponding flag.
2023-09-29 17:34:48 +02:00

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#######################################################################################
##
## The following macros are specific to Gambas.
## Some of them are made by me (Benoît Minisini)
## Feel free to use these macros as you need !
##
## IMPORTANT: This file is shared by all Gambas
## source packages
##
#######################################################################################
## ---------------------------------------------------------------------------
## GB_MESSAGE
## Prints a message, and stores it in a summay file to print it later
## ---------------------------------------------------------------------------
AC_DEFUN([GB_MESSAGE],
[
echo "|| $1" >> $srcdir/warnings.log
])
## ---------------------------------------------------------------------------
## GB_MESSAGE
## Prints a warning message, and stores it in a summay file to print it later
## ---------------------------------------------------------------------------
AC_DEFUN([GB_WARNING],
[
AC_MSG_WARN($1)
GB_MESSAGE([$1])
])
## ---------------------------------------------------------------------------
## GB_CLEAR_MESSAGES
## Clear summary
## ---------------------------------------------------------------------------
AC_DEFUN([GB_CLEAR_MESSAGES],
[
rm -f $srcdir/warnings.log
touch $srcdir/warnings.log
])
## ---------------------------------------------------------------------------
## GB_PRINT_MESSAGES
## Print summary
## ---------------------------------------------------------------------------
AC_DEFUN([GB_PRINT_MESSAGES],
[
if test -s $srcdir/warnings.log; then
echo
echo "||"
cat $srcdir/warnings.log
echo "||"
echo
fi
rm -f $srcdir/warnings.log.before;
if test -e FAILED && test "x${GAMBAS_CONFIG_FAILURE}" != "x"; then
AC_MSG_ERROR([Failed to configure $3])
fi
])
## ---------------------------------------------------------------------------
## GB_INIT_AUTOMAKE
## automake initialization with common version number
## ---------------------------------------------------------------------------
AC_DEFUN([GB_INIT_AUTOMAKE],
[
AM_INIT_AUTOMAKE([subdir-objects])
m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES(yes)])
AC_CONFIG_HEADERS([config.h])
AC_PREFIX_DEFAULT(/usr)
MAKEFLAGS=--silent
AC_SUBST(MAKEFLAGS)
GAMBAS_VERSION=GB_VERSION_MAJOR
GAMBAS_MINOR_VERSION=GB_VERSION_MINOR
AC_SUBST(GAMBAS_VERSION)
AC_SUBST(GAMBAS_MINOR_VERSION)
AC_DEFINE(GAMBAS_VERSION, GB_VERSION_MAJOR, Gambas version)
AC_DEFINE(GAMBAS_MINOR_VERSION, GB_VERSION_MINOR, Gambas minor version)
AC_DEFINE(GAMBAS_VERSION_STRING, "GB_VERSION_MAJOR", Gambas version string)
AC_DEFINE(GAMBAS_FULL_VERSION_STRING, "GB_VERSION_MAJOR.GB_VERSION_MINOR", Gambas full version string)
AC_DEFINE(GAMBAS_FULL_VERSION, GB_VERSION_FULL, [Full Gambas version])
AC_DEFINE(GAMBAS_PCODE_VERSION, GB_PCODE_VERSION, [Gambas bytecode version])
AC_DEFINE(GAMBAS_PCODE_VERSION_MIN, GB_PCODE_VERSION_MIN, [Minimum Gambas bytecode version])
GB_CLEAR_MESSAGES
])
## ---------------------------------------------------------------------------
## GB_TRUNK_VERSION
## detect version and branch (svn and git supported)
## ---------------------------------------------------------------------------
AC_DEFUN([GB_TRUNK_VERSION],
[
gb_detect_git=`which git 2> /dev/null`
gb_vcs_hash=""
gb_vcs_branch=""
gb_vcs_version=""
AC_MSG_CHECKING(for vcs revision)
if test "x${gb_detect_git}" != "x"; then
gb_vcs_branch=`git rev-parse --abbrev-ref HEAD 2> /dev/null`
gb_vcs_hash=`git rev-parse --short HEAD 2> /dev/null`
else
gb_detect_svn=`which svn 2> /dev/null`
if test "x${gb_detect_svn}" != "x"; then
gb_vcs_hash=`svn info --show-item last-changed-revision 2> /dev/null`
fi
fi
if test "x${gb_vcs_branch}" != "x"; then
gb_vcs_version="${gb_vcs_hash} (${gb_vcs_branch})"
else
if test "x${gb_vcs_hash}" != "x"; then
gb_vcs_version="r${gb_vcs_hash}"
fi
fi
if test "x${gb_vcs_version}" != "x"; then
AC_DEFINE_UNQUOTED(TRUNK_VERSION, "${gb_vcs_version}", [vcs revision])
AC_MSG_RESULT([$gb_vcs_version])
else
AC_MSG_RESULT(not found)
fi
])
## ---------------------------------------------------------------------------
## GB_CONFIG_SUBDIRS
## configuration of a component sub-directory, with a flag for disabling it
## ---------------------------------------------------------------------------
AC_DEFUN([GB_CONFIG_SUBDIRS],
[
AC_ARG_ENABLE(
$1,
[ --enable-$1 enable $1 component (default: yes)],
gb_enable_$1=$enableval,
gb_enable_$1=yes
)
if test "$gb_enable_$1" = "yes"; then
if test -d $srcdir/$2; then
AC_CONFIG_SUBDIRS($2)
$1_dir=$2
fi
else
GB_WARNING([$1 component is disabled by configure option])
$1_dir=""
fi
AC_SUBST($1_dir)
])
## ---------------------------------------------------------------------------
## GB_INIT_SHORT GB_INIT GB_LIBTOOL
## configure.ac initialization
## ---------------------------------------------------------------------------
AC_DEFUN([GB_INIT_SHORT],
[
AC_CONFIG_SRCDIR([configure.ac])
AM_MAINTAINER_MODE
COMPONENT=$1
GB_INIT_AUTOMAKE
AC_CANONICAL_HOST
gbbindir=$bindir/gambas$GAMBAS_VERSION
AC_SUBST(gbbindir)
gblibdir=$libdir/gambas$GAMBAS_VERSION
AC_SUBST(gblibdir)
gbdatadir=$datadir/gambas$GAMBAS_VERSION
AC_SUBST(gbdatadir)
AC_PROG_INSTALL
AC_PROG_LN_S
])
AC_DEFUN([GB_LIBTOOL],
[
dnl AC_LIBTOOL_DLOPEN
dnl AC_LIBTOOL_WIN32_DLL
AC_DISABLE_STATIC
AC_SUBST(INCLTDL)
AC_SUBST(LIBLTDL)
dnl LD_FLAGS="-Wl,-O1"
if test $SYSTEM == "CYGWIN"; then
LD_FLAGS="$LD_FLAGS -no-undefined"
fi
AC_SUBST(LD_FLAGS)
AM_LIBTOOLFLAGS="--silent"
AC_SUBST(AM_LIBTOOLFLAGS)
])
AC_DEFUN([GB_INIT],
[
GB_INIT_SHORT($1)
GB_SYSTEM
GB_LIBTOOL
dnl ---- Checks for headers needed by the following tests
AC_CHECK_HEADERS(unistd.h)
dnl ---- Checks for header files.
dnl AC_HEADER_DIRENT
dnl AC_HEADER_SYS_WAIT
dnl ---- Checks for typedefs, structures, and compiler characteristics.
dnl AC_C_CONST
dnl AC_TYPE_PID_T
dnl AC_TYPE_SIZE_T
dnl AC_CHECK_HEADERS_ONCE([sys/time.h])
dnl AC_STRUCT_TM
AC_TYPE_LONG_DOUBLE_WIDER
ac_cv_c_long_double=$ac_cv_type_long_double_wider
if test $ac_cv_c_long_double = yes; then
AC_DEFINE([HAVE_LONG_DOUBLE],[1],[Define to 1 if the type `long double' works and has more range or
precision than `double'.])
fi
dnl ---- Checks for library functions.
dnl AC_FUNC_ALLOCA
dnl AC_PROG_GCC_TRADITIONAL
dnl AC_FUNC_STRCOLL
dnl AC_FUNC_STRFTIME
dnl AC_FUNC_VPRINTF
dnl AC_FUNC_WAIT3
dnl AC_CHECK_FUNCS(getcwd gettimeofday mkdir rmdir select socket strdup strerror strtod strtol sysinfo)
AC_CHECK_FUNCS(setenv unsetenv getdomainname getpt cfmakeraw fstatat)
dnl ---- Checks for libraries
dnl AC_CHECK_LIB(m, main, echo)
dnl AC_CHECK_LIB(z, main, echo)
GB_LIBC
dnl ---- Check for C++ libraries
AC_CHECK_LIB(gcc_s, main, CXX_LIB="$CXX_LIB -lgcc_s")
AC_CHECK_LIB(stdc++, main, CXX_LIB="$CXX_LIB -lstdc++")
AC_SUBST(CXX_LIB)
dnl ---- Check for shared library extension
GB_SHARED_LIBRARY_EXT()
dnl ---- Check for threading
GB_THREAD()
dnl ---- Check for mathematic libraries
GB_MATH()
dnl ---- Check for gettext library
GB_GETTEXT()
dnl ---- Check for inotify library
GB_INOTIFY()
dnl ---- Check for internationalization library
GB_INTL()
dnl ---- Check for charset conversion library
GB_ICONV()
dnl ---- Check for monotonic clock
GB_MONOTONIC()
dnl ---- Support for colorgcc
dnl ---- WARNING: libtool does not support colorgcc!
dnl AC_PATH_PROG(COLORGCC, colorgcc)
if test x"$COLORGCC" != x; then
if test "$gambas_colorgcc" = "yes"; then
CC="colorgcc"
CXX="g++"
fi
fi
dnl ---- Support for ccache
AC_ARG_ENABLE(
ccache,
[ --enable-ccache use ccache if present (default: yes)],
gambas_ccache=$enableval,
gambas_ccache=yes
)
AC_PATH_PROG(CCACHE, ccache)
if test "$gambas_colorgcc" = "yes"; then
if test x"$CCACHE" != x; then
CC="ccache $CC"
CXX="ccache $CXX"
if test x"$COLORGCC" != x; then
if test "$gambas_colorgcc" = "yes"; then
CC="colorgcc"
CXX="colorgcc"
fi
fi
fi
fi
dnl ---- debug option
AC_ARG_ENABLE(
debug,
[ --enable-debug compile for debugging (default: yes)],
gambas_debug=$enableval,
gambas_debug=yes
)
AM_CONDITIONAL(DEBUG, test "$gambas_debug" = yes)
dnl ---- optimization option
AC_ARG_ENABLE(
optimization,
[ --enable-optimization compile with optimizations (default: yes)],
gambas_optimization=$enableval,
gambas_optimization=yes
)
AM_CONDITIONAL(OPTIMIZE, test "$gambas_optimization" = yes)
AM_CFLAGS="$AM_CFLAGS -pipe -Wall -Wno-unused-value -fsigned-char"
if test $SYSTEM = "MACOSX"; then
AM_CFLAGS="$AM_CFLAGS -fnested-functions"
fi
AM_CXXFLAGS="$AM_CXXFLAGS -pipe -Wall -fno-exceptions -Wno-unused-value -fsigned-char"
dnl ---- Check for gcc visibility flag
have_gcc_visibility=no
if test $SYSTEM != "CYGWIN"; then
GB_CFLAGS_GCC_OPTION([-fvisibility=hidden],,
[
AM_CFLAGS="$AM_CFLAGS -fvisibility=hidden"
AM_CXXFLAGS="$AM_CXXFLAGS -fvisibility=hidden"
have_gcc_visibility=yes])
fi
if test "$have_gcc_visibility" = "yes"; then
AC_DEFINE(HAVE_GCC_VISIBILITY, 1, [Whether gcc supports -fvisibility=hidden])
fi
dnl ---- check for -fcf-protection=return compiler flag
have_gcc_nocte=no
GB_CFLAGS_GCC_OPTION([-fcf-protection=return],,
[
GB_CFLAGS_NOCTE=" -fcf-protection=return"
have_gcc_nocte=yes
])
dnl ---- check for -flto compiler flag
GB_CFLAGS_GCC_OPTION([-flto],,
[
GB_CFLAGS_LTO=" -flto"
have_gcc_lto=yes
])
AC_ARG_ENABLE(
lto,
[ --enable-lto enable link time optimization (default: no)],
gambas_lto=$enableval,
gambas_lto=no
)
if test "$gambas_lto" = "no"; then
have_gcc_lto=no;
GB_CFLAGS_LTO="";
fi
if test "$have_gcc_lto" = "yes"; then
AC_DEFINE(HAVE_GCC_LTO, 1, [Whether gcc supports -flto])
fi
dnl ---- check for -std=c++11 compiler flag
GB_CXXFLAGS_GCC_OPTION([-std=c++11],,
[
GB_CXXFLAGS_STD_CPP11=" -std=c++11"
have_gcc_std_cpp11x=yes
])
if test "$have_gcc_std_cpp11" = "yes"; then
AC_DEFINE(HAVE_GCC_STD_CPP11, 1, [Whether g++ supports -std=c++11])
fi
dnl ---- check for -std=c++17 compiler flag
GB_CXXFLAGS_GCC_OPTION([-std=c++17],,
[
GB_CXXFLAGS_STD_CPP17=" -std=c++17"
have_gcc_std_cpp17x=yes
])
if test "$have_gcc_std_cpp17" = "yes"; then
AC_DEFINE(HAVE_GCC_STD_CPP17, 1, [Whether g++ supports -std=c++17])
fi
dnl ---- Debug flags
if test "$gambas_debug" = "yes"; then
AM_CFLAGS="$AM_CFLAGS -g -ggdb"
AM_CXXFLAGS="$AM_CXXFLAGS -g -ggdb"
fi
dnl ---- Optimization flags
if test "x$gambas_optimization" = "xyes"; then
AM_CFLAGS_OPT="$AM_CFLAGS -O3"
AM_CFLAGS="$AM_CFLAGS -O2"
AM_CXXFLAGS_OPT="$AM_CXXFLAGS -O3 -fno-omit-frame-pointer"
AM_CXXFLAGS="$AM_CXXFLAGS -O2 -fno-omit-frame-pointer"
else
AM_CFLAGS_OPT="$AM_CFLAGS -O0"
AM_CFLAGS="$AM_CFLAGS -O0"
AM_CXXFLAGS_OPT="$AM_CXXFLAGS -O0"
AM_CXXFLAGS="$AM_CXXFLAGS -O0"
fi
dnl ---- Checks for programs
save_CFLAGS=$CFLAGS
AC_PROG_CPP
AC_PROG_CXX
AC_PROG_CC
AC_PROG_MAKE_SET
CFLAGS=$save_CFLAGS
AC_SUBST(AM_CFLAGS)
AC_SUBST(AM_CFLAGS_OPT)
AC_SUBST(AM_CXXFLAGS)
AC_SUBST(AM_CXXFLAGS_OPT)
AC_SUBST(GB_CFLAGS_LTO)
AC_SUBST(GB_CFLAGS_NOCTE)
AC_SUBST(GB_CXXFLAGS_STD_CPP11)
AC_SUBST(GB_CXXFLAGS_STD_CPP17)
rm -f DISABLED DISABLED.* FAILED
])
## ---------------------------------------------------------------------------
## GB_THREAD
## Detect threading compiler options
## ---------------------------------------------------------------------------
AC_DEFUN([GB_THREAD],
[
case "${host}" in
*-*-freebsd* | *-*-netbsd* | *-*-darwin* )
THREAD_LIB=""
THREAD_INC="-pthread -D_REENTRANT"
GBX_THREAD_LIB=""
GBX_THREAD_INC="-pthread -D_REENTRANT"
GBX_THREAD_LDFLAGS=""
;;
*-*-haiku* )
THREAD_LIB=""
THREAD_INC=""
GBX_THREAD_LIB=""
GBX_THREAD_INC=""
GBX_THREAD_LDFLAGS=""
;;
*)
THREAD_LIB="-lpthread"
THREAD_INC="-D_REENTRANT"
GBX_THREAD_LIB="-lpthread"
GBX_THREAD_INC="-D_REENTRANT"
GBX_THREAD_LDFLAGS="-Wl,--no-as-needed"
;;
esac
AC_MSG_CHECKING(for threading compiler options)
AC_MSG_RESULT($THREAD_INC)
AC_MSG_CHECKING(for threading linker options)
AC_MSG_RESULT($THREAD_LIB)
AC_SUBST(THREAD_LIB)
AC_SUBST(THREAD_INC)
AC_SUBST(GBX_THREAD_LIB)
AC_SUBST(GBX_THREAD_INC)
AC_SUBST(GBX_THREAD_LDFLAGS)
])
## ---------------------------------------------------------------------------
## GB_LIBC
## Detect C library
## ---------------------------------------------------------------------------
AC_DEFUN([GB_LIBC],
[
case "${host}" in
*-*-haiku* )
dnl Haiku has implicit C library in libroot.
C_LIB=""
;;
*)
C_LIB="-lc"
;;
esac
AC_MSG_CHECKING(for C library)
AC_MSG_RESULT($C_LIB)
AC_SUBST(C_LIB)
])
## ---------------------------------------------------------------------------
## GB_MATH
## Detect mathematic libraries
## ---------------------------------------------------------------------------
AC_DEFUN([GB_MATH],
[
case "${host}" in
*-*-haiku* )
MATH_LIB=""
;;
*)
MATH_LIB="-lm"
;;
esac
AC_MSG_CHECKING(for mathematic libraries)
AC_MSG_RESULT($MATH_LIB)
AC_SUBST(MATH_LIB)
])
## ---------------------------------------------------------------------------
## GB_CHECK_MATH_FUNC
## Check a specific mathematical function
##
## $1 = name of the function
## $2 = macro to define
## ---------------------------------------------------------------------------
AC_DEFUN([GB_CHECK_MATH_FUNC],
[AC_CACHE_CHECK(for $1,
gb_cv_math_$1,
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#define _ISOC9X_SOURCE 1
#define _ISOC99_SOURCE 1
#define _GNU_SOURCE 1
#define __USE_ISOC99 1
#define __USE_ISOC9X 1
#include <math.h>
]], [[
int value = $1 (1.0);
]])],[gb_cv_math_$1=yes],[gb_cv_math_$1=no
])])
if test $gb_cv_math_$1 = yes; then
AC_DEFINE(HAVE_$2, 1, [Define if you have $1 function.])
fi
])
## ---------------------------------------------------------------------------
## GB_MATH_FUNC
## Detect which mathematical functions are available
## ---------------------------------------------------------------------------
AC_DEFUN([GB_MATH_FUNC],
[
ac_save_LDFLAGS="$LDFLAGS"
LDFLAGS="$LDFLAGS -$MATH_LIB"
GB_CHECK_MATH_FUNC(exp10, EXP10)
GB_CHECK_MATH_FUNC(exp2, EXP2)
GB_CHECK_MATH_FUNC(log2, LOG2)
LDFLAGS=$ac_save_LDFLAGS
])
## ---------------------------------------------------------------------------
## GB_SYSTEM
## Detects the target system and its architecture
## ---------------------------------------------------------------------------
AC_DEFUN([GB_SYSTEM],
[
AC_MSG_CHECKING(target system)
case "${host}" in
*-*-linux*-gnu* )
SYSTEM=LINUX
AC_DEFINE(OS_GNU, 1, [Target system is of GNU family])
AC_DEFINE(OS_LINUX, 1, [Target system is Linux])
AC_DEFINE(SYSTEM, "Linux", [Operating system])
;;
*-*-linux* )
SYSTEM=LINUX
AC_DEFINE(OS_LINUX, 1, [Target system is Linux])
AC_DEFINE(SYSTEM, "Linux", [Operating system])
;;
*-*-freebsd* )
SYSTEM=FREEBSD
AC_DEFINE(OS_BSD, 1, [Target system is of BSD family])
AC_DEFINE(OS_FREEBSD, 1, [Target system is FreeBSD])
AC_DEFINE(SYSTEM, "FreeBSD", [Operating system])
;;
*-*-netbsd* )
SYSTEM=NETBSD
AC_DEFINE(OS_BSD, 1, [Target system is of BSD family])
AC_DEFINE(OS_NETBSD, 1, [Target system is NetBSD])
AC_DEFINE(SYSTEM, "NetBSD", [Operating system])
;;
*-*-openbsd* )
SYSTEM=OPENBSD
AC_DEFINE(OS_BSD, 1, [Target system is of BSD family])
AC_DEFINE(OS_OPENBSD, 1, [Target system is OpenBSD])
AC_DEFINE(SYSTEM, "OpenBSD", [Operating system])
;;
*-*-cygwin* )
SYSTEM=CYGWIN
AC_DEFINE(OS_CYGWIN, 1, [Target system is Cygwin/Windows])
AC_DEFINE(SYSTEM, "Cygwin", [Operating system])
;;
*-*-darwin* | *-*-rhapsody* )
SYSTEM=MACOSX
AC_DEFINE(OS_BSD, 1, [Target system is of BSD family])
AC_DEFINE(OS_FREEBSD, 1, [Target system is FreeBSD])
AC_DEFINE(OS_MACOSX, 1, [Target system is MacOS X])
AC_DEFINE(SYSTEM, "MacOSX", [Operating system])
;;
*-*-solaris* )
SYSTEM=SOLARIS
AC_DEFINE(OS_SOLARIS, 1, [Target system is Solaris])
AC_DEFINE(SYSTEM, "Solaris", [Operating system])
;;
*-*-k*bsd*-gnu* )
SYSTEM=KFREEBSD
AC_DEFINE(OS_BSD, 1, [Target system is of BSD family])
AC_DEFINE(OS_GNU, 1, [Target system is of GNU family])
AC_DEFINE(OS_KFREEBSD, 1, [Target system is kFREEBSD])
AC_DEFINE(SYSTEM, "kFreeBSD", [Operating system])
;;
*-gnu* )
SYSTEM=HURD
AC_DEFINE(OS_GNU, 1, [Target system is of GNU family])
AC_DEFINE(OS_HURD, 1, [Target system is Hurd])
AC_DEFINE(SYSTEM, "Hurd", [Operating system])
;;
*-*-haiku* )
SYSTEM=HAIKU
dnl AC_DEFINE(OS_GNU, 1, [Target system is of GNU family])
AC_DEFINE(OS_HAIKU, 1, [Target system is Haiku])
AC_DEFINE(SYSTEM, "Haiku", [Operating system])
;;
* )
SYSTEM=UNKNOWN
AC_DEFINE(SYSTEM, "unknown", [Operating system])
GB_MESSAGE([System is unknown])
;;
esac
AC_MSG_RESULT($SYSTEM)
AC_MSG_CHECKING(target architecture)
case "${host}" in
i*86-*-* )
ARCH=X86
AC_DEFINE(ARCH_X86, 1, [Target architecture is x86])
AC_DEFINE(ARCHITECTURE, "x86", [Architecture])
;;
x86_64-*-* | amd64-* | ia64-* )
ARCH=X86_64
AC_DEFINE(ARCH_X86_64, 1, [Target architecture is x86_64])
AC_DEFINE(ARCHITECTURE, "x86_64", [Architecture])
;;
arm*-*-* )
ARCH=ARM
AC_DEFINE(ARCH_ARM, 1, [Target architecture is ARM])
AC_DEFINE(ARCHITECTURE, "arm", [Architecture])
;;
aarch64*-*-* )
ARCH=AARCH64
AC_DEFINE(ARCH_AARCH64, 1, [Target architecture is AARCH64])
AC_DEFINE(ARCHITECTURE, "aarch64", [Architecture])
;;
powerpc*-*-* )
ARCH=PPC
AC_DEFINE(ARCH_PPC, 1, [Target architecture is PowerPC])
AC_DEFINE(ARCHITECTURE, "powerpc", [Architecture])
;;
e2k-*-* )
ARCH=E2K
AC_DEFINE(ARCH_E2K, 1, [Target architecture is e2k])
AC_DEFINE(ARCHITECTURE, "e2k", [Architecture])
;;
*)
ARCH=UNKNOWN
AC_DEFINE(ARCHITECTURE, "unknown", [Architecture])
GB_MESSAGE([Architecture is unknown])
;;
esac
AC_MSG_RESULT($ARCH)
])
## ---------------------------------------------------------------------------
## GB_SHARED_LIBRARY_EXT
## Detects shared library extension
## ---------------------------------------------------------------------------
AC_DEFUN([GB_SHARED_LIBRARY_EXT],
[
AC_MSG_CHECKING(which extension is used for shared libraries)
case "${host}" in
*-*-cygwin* )
SHLIBEXT="dll.a"
AC_DEFINE(SHARED_LIBRARY_EXT, "dll", [Shared library extension is '.dll.a'])
;;
*-*-darwin* )
SHLIBEXT="dylib"
AC_DEFINE(SHARED_LIBRARY_EXT, "dylib", [Shared library extension is '.dylib'])
;;
*)
SHLIBEXT="so"
AC_DEFINE(SHARED_LIBRARY_EXT, "so", [Shared library extension is '.so'])
;;
esac
AC_SUBST(SHLIBEXT)
AC_MSG_RESULT([.$SHLIBEXT])
])
## ---------------------------------------------------------------------------
## GB_GETTEXT
## Detects if we must link to an external gettext library
## ---------------------------------------------------------------------------
AC_DEFUN([GB_GETTEXT],
[
AC_MSG_CHECKING(for external gettext library)
case "${host}" in
*-*-openbsd* )
GETTEXT_LIB=-llibgettext
;;
*)
GETTEXT_LIB=
;;
esac
AC_SUBST(GETTEXT_LIB)
AC_SUBST(GETTEXT_LDFLAGS)
AC_MSG_RESULT($GETTEXT_LIB)
])
## ---------------------------------------------------------------------------
## GB_INOTIFY
## Detects if we must link to an external inotify library
## ---------------------------------------------------------------------------
AC_DEFUN([GB_INOTIFY],
[
AC_MSG_CHECKING(for external inotify library)
case "${host}" in
*-*-linux* )
GB_INOTIFY_LIB=
;;
*)
GB_INOTIFY_LIB=-linotify
;;
esac
AC_SUBST(GB_INOTIFY_LIB)
AC_MSG_RESULT($GB_INOTIFY_LIB)
])
## ---------------------------------------------------------------------------
## GB_INTL
## Detects if we must link to an external internationalization library
## ---------------------------------------------------------------------------
AC_DEFUN([GB_INTL],
[
AC_MSG_CHECKING(for external internationalization library)
case "${host}" in
*-musl)
GB_INTL_LIB=-lintl
;;
*)
GB_INTL_LIB=
;;
esac
AC_SUBST(GB_INTL_LIB)
AC_MSG_RESULT($GB_INTL_LIB)
])
## ---------------------------------------------------------------------------
## GB_ICONV
## Detects if we must link to an external charset conversion library
## ---------------------------------------------------------------------------
AC_DEFUN([GB_ICONV],
[
AC_MSG_CHECKING(for external charset conversion library)
case "${host}" in
*)
GB_ICONV_LIB=
;;
esac
AC_SUBST(GB_ICONV_LIB)
AC_MSG_RESULT($GB_ICONV_LIB)
])
## ---------------------------------------------------------------------------
## GB_MONOTONIC
## Detect monotonic clock
## ---------------------------------------------------------------------------
AC_DEFUN([GB_MONOTONIC],
[
AC_CACHE_CHECK(for monotonic clock, gb_cv_monotonic_clock,
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#include <time.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
]], [[
#if !defined(_POSIX_MONOTONIC_CLOCK) || _POSIX_MONOTONIC_CLOCK < 0 || !defined(CLOCK_MONOTONIC)
#error Either _POSIX_MONOTONIC_CLOCK or CLOCK_MONOTONIC not defined
#endif
]])],[
gb_cv_monotonic_clock=yes
],[
gb_cv_monotonic_clock=no
])
)
if test "$gb_cv_monotonic_clock" = "yes"; then
AC_DEFINE(HAVE_MONOTONIC_CLOCK,1,[Have a monotonic clock])
ac_save_LIBS="$LIBS"
AC_SEARCH_LIBS(clock_gettime, rt)
RT_LIB=$LIBS
LIBS=$ac_save_LIBS
fi
AC_SUBST(RT_LIB)
AC_SUBST(RT_LDFLAGS)
])
## ---------------------------------------------------------------------------
## GB_FIND
## Find files in directories
##
## $1 = Files to search
## $2 = Directories
## $3 = Sub-directories patterns
##
## Returns a path list in $gb_val
## ---------------------------------------------------------------------------
AC_DEFUN([GB_FIND],
[
dnl echo "Searching $1, $2, $3"
gb_val=""
gb_save=`pwd`
gb_file_list="$1"
gb_main_dir_list="$2"
gb_sub_dir_list="$3"
gb_sub_dir_list_64=`echo "$gb_sub_dir_list" | sed s/"lib"/"lib64"/g`
if test $SYSTEM == "HAIKU"; then
gb_arch="`getarch`"
gb_main_dir_list="$gb_main_dir_list `findpaths -c' ' -a "$gb_arch" B_FIND_PATH_DEVELOP_DIRECTORY`"
gb_arch_inc_subdir=headers
gb_arch_lib_subdir=lib
if test "$gb_arch" != "`getarch -p`"; then
gb_arch_inc_subdir="headers/$gb_arch"
gb_arch_lib_subdir="lib/$gb_arch"
fi
gb_sub_dir_list=`echo "$gb_sub_dir_list" | sed "s:include:$gb_arch_inc_subdir:g;s:lib:$gb_arch_lib_subdir:g"`
fi
## if there is 'lib' inside sub-directories, then we decide to search "lib64" first.
if test "$gb_sub_dir_list_64" != "$gb_sub_dir_list"; then
gb_sub_dir_list="$gb_sub_dir_list_64 $gb_sub_dir_list";
gb_main_dir_list_64=`echo "$gb_main_dir_list" | sed s/"lib"/"lib64"/g`
if test "$gb_main_dir_list_64" != "$gb_main_dir_list"; then
gb_main_dir_list="$gb_main_dir_list_64 $gb_main_dir_list";
fi
fi
for gb_main_dir in $gb_main_dir_list; do
dnl echo "search $gb_main_dir"
if test -d $gb_main_dir; then
cd $gb_main_dir
for gb_search_dir in $gb_sub_dir_list; do
for gb_dir in $gb_search_dir/ $gb_search_dir/*/ $gb_search_dir/*/*/ $gb_search_dir/*/*/*/; do
dnl echo "search subdir $gb_dir"
gb_new_file_list=""
gb_find_dir=""
for gb_file in $gb_file_list; do
dnl echo "search file $gb_file"
gb_find=no
if test -r "$gb_main_dir/$gb_dir/$gb_file" || test -d "$gb_main_dir/$gb_dir/$gb_file"; then
ifelse($4,[],
gb_find=yes,
for gb_test in $4; do
gb_output=`ls -la $gb_main_dir/$gb_dir/$gb_file | grep "$gb_test"`
if test "x$gb_output" != "x"; then
gb_find=yes
fi
done
)
fi
if test "$gb_find" = "yes"; then
dnl echo "FOUND!"
if test "x$gb_find_dir" = "x"; then
if test "x$gb_val" = "x"; then
gb_val="$gb_main_dir/$gb_dir"
else
gb_val="$gb_val $gb_main_dir/$gb_dir"
fi
fi
gb_find_dir=yes
else
gb_new_file_list="$gb_new_file_list $gb_file"
fi
done
gb_file_list=$gb_new_file_list
if test "x$gb_file_list" = "x " || test "x$gb_file_list" = "x"; then
break 3
fi
done
done
fi
done
if test "x$gb_file_list" != "x " && test "x$gb_file_list" != "x"; then
gb_val=no
fi
cd $gb_save
])
## ---------------------------------------------------------------------------
## GB_COMPONENT_PKG_CONFIG
## Component detection macro based on pkg-config
##
## $1 = Component key in lower case (ex: pgsql)
## $2 = Component key in upper case (ex: PGSQL)
## $3 = Component name (ex: gb.db.postgresql)
## $4 = Sub-directory name
## $5 = pkg-config module(s) name(s) with optional required version(s)
## $6 = Warning message (optional)
##
## => defines HAVE_*_COMPONENT (to know if you can compile the component)
## *_INC (for the compiler) and *_LIB / *_LDFLAGS (for the linker)
## ---------------------------------------------------------------------------
AC_DEFUN([GB_COMPONENT_PKG_CONFIG],
[
AC_REQUIRE([PKG_PROG_PKG_CONFIG])
AC_ARG_ENABLE(
$1,
[ --enable-$1 enable $3 (default: yes)],
gb_enable_$1=$enableval,
gb_enable_$1=yes
)
dnl AC_ARG_WITH($1-includes,
dnl [ --with-$1-includes where the $3 headers are located. ],
dnl [ gb_inc_$1="$withval" ])
dnl AC_ARG_WITH($1-libraries,
dnl [ --with-$1-libraries where the $3 libraries are located. ],
dnl [ gb_lib_$1="$withval" ])
cp warnings.log warnings.log.before
have_$1=no
if test "$gb_enable_$1" = "yes" && test ! -e DISABLED && test ! -e DISABLED.$3; then
AC_MSG_CHECKING(for $3 component with pkg-config)
gb_inc_$1=""
gb_lib_$1=""
gb_ldflags_$1=""
have_$1=yes
gb_testval=""
$PKG_CONFIG --silence-errors --exists $5
if test $? -eq "0"; then
## Checking for headers
$2_INC="`$PKG_CONFIG --cflags $5`"
## Checking for libraries
$2_LIB="`$PKG_CONFIG --libs-only-l $5`"
$2_LDFLAGS="`$PKG_CONFIG --libs-only-L $5` `$PKG_CONFIG --libs-only-other $5`"
$2_DIR=$4
else
have_$1=no
fi
fi
if test "$have_$1" = "no"; then
if test "$gb_in_component_search" != "yes"; then
touch DISABLED.$3
if test "$gb_enable_$1" = "yes"; then
touch FAILED
fi
fi
if test "$gb_enable_$1" = "yes"; then
AC_MSG_RESULT(failed)
fi
for pkgcmp in $5
do
$PKG_CONFIG --silence-errors --exists $pkgcmp
if test $? -eq "1"; then
GB_WARNING([Unable to met pkg-config requirement: $pkgcmp])
fi
done
else
AC_DEFINE(HAVE_$2_COMPONENT, 1, [Have $3 component])
AC_MSG_RESULT(OK)
fi
if test "$have_$1" = "no"; then
$2_INC=""
$2_LIB=""
$2_LDFLAGS=""
$2_DIR=""
if test "$gb_in_component_search" != "yes"; then
if test x"$6" = x; then
GB_MESSAGE([$3 is disabled])
else
GB_MESSAGE([$6])
fi
fi
fi
AC_SUBST($2_INC)
AC_SUBST($2_LIB)
AC_SUBST($2_LDFLAGS)
AC_SUBST($2_DIR)
])
## ---------------------------------------------------------------------------
## GB_COMPONENT_PKG_CONFIG_AGAIN
## Try again a component detection macro based on pkg-config
##
## $1 = Component key in lower case (ex: pgsql)
## $2 = Component key in upper case (ex: PGSQL)
## $3 = Component name (ex: gb.db.postgresql)
## $4 = Sub-directory name
## $5 = pkg-config module(s) name(s) with optional required version(s)
## $6 = Try again message
## $7 = Warning message (optional)
##
## ---------------------------------------------------------------------------
AC_DEFUN([GB_COMPONENT_PKG_CONFIG_AGAIN],
[
if test "$have_$1" != "yes"; then
AC_MSG_WARN([$6...])
rm DISABLED.$3 FAILED;
cp warnings.log.before warnings.log;
GB_COMPONENT_PKG_CONFIG($1, $2, $3, $4, $5, $7)
fi
])
## ---------------------------------------------------------------------------
## GB_COMPONENT
## Component detection macro that searches for files
##
## $1 = Component key in lower case (ex: postgresql)
## $2 = Component key in upper case (ex: POSTGRESQL)
## $3 = Component name (ex: gb.db.postgresql)
## $4 = Sub-directory name
## $5 = How to get include path (must return it in gb_val)
## $6 = How to get library path (must return it in gb_val)
## $7 = Libraries
## $8 = Compiler flags (optional)
## $9 = Warning message (optional)
##
## => defines HAVE_*_COMPONENT (to know if you can compile the component)
## *_INC (for the compiler) and *_LIB (for the linker)
## ---------------------------------------------------------------------------
AC_DEFUN([GB_COMPONENT],
[
AC_ARG_ENABLE(
$1,
[ --enable-$1 enable $3 (default: yes)],
gb_enable_$1=$enableval,
gb_enable_$1=yes
)
gb_inc_$1=no
gb_lib_$1=no
if test "$gb_enable_$1" = "yes" && test ! -e DISABLED && test ! -e DISABLED.$3; then
## Checking for headers
AC_MSG_CHECKING(for $3 headers)
AC_ARG_WITH($1-includes,
[ --with-$1-includes where the $3 headers are located. ],
[ gb_inc_$1="$withval" ])
AC_CACHE_VAL(gb_cv_header_$1, [
if test "$gb_inc_$1" = no; then
gb_val=""
$5
gb_inc_$1=$gb_val
fi
gb_cv_header_$1=$gb_inc_$1
])
AC_MSG_RESULT([$gb_cv_header_$1])
if test "$gb_cv_header_$1" = "no"; then
for gb_result in $gb_file_list; do
GB_WARNING([Unable to find file: $gb_result])
done
fi
$2_INC=""
for gb_dir in $gb_cv_header_$1; do
if test "$gb_dir" != "/usr/include"; then
if test "$gb_dir" != "/usr/include/"; then
$2_INC="$$2_INC -I$gb_dir"
fi
fi
done
if test "x$8" != "x"; then
$2_INC="$$2_INC $8"
fi
if test "$gb_cv_header_$1" = no; then
have_inc_$1="no"
$2_INC=""
else
have_inc_$1="yes"
fi
## Checking for libraries
AC_MSG_CHECKING(for $3 libraries)
AC_ARG_WITH($1-libraries,
[ --with-$1-libraries where the $3 libraries are located. ],
[ gb_lib_$1="$withval" ])
AC_CACHE_VAL(gb_cv_lib_$1, [
if test "$gb_lib_$1" = no; then
gb_val=""
$6
gb_lib_$1=$gb_val
fi
gb_cv_lib_$1=$gb_lib_$1
])
if test "$gb_cv_lib_$1" = no; then
have_lib_$1="no"
else
have_lib_$1="yes"
fi
AC_MSG_RESULT([$gb_cv_lib_$1])
if test "$gb_cv_lib_$1" = "no"; then
for gb_result in $gb_file_list; do
GB_WARNING([Unable to find file: $gb_result])
done
fi
$2_LIB=""
$2_LDFLAGS=""
$2_PATH=""
for gb_dir in $gb_cv_lib_$1; do
if test "x$$2_PATH" = "x"; then
$2_PATH="$gb_dir/.."
fi
if test "$gb_dir" != "/lib" && test "$gb_dir" != "/lib/"&& test "$gb_dir" != "/usr/lib" && test "$gb_dir" != "/usr/lib/"; then
$2_LDFLAGS="$$2_LDFLAGS -L$gb_dir";
fi
done
$2_LIB="$$2_LIB $7"
fi
if test "$have_inc_$1" = "yes" && test "$have_lib_$1" = "yes"; then
have_$1=yes
$2_DIR=$4
AC_DEFINE(HAVE_$2_COMPONENT, 1, Have $3)
else
have_$1=no
touch DISABLED.$3
if test "$gb_enable_$1" = "yes"; then
touch FAILED
fi
fi
if test "$have_$1" = "no"; then
$2_INC=""
$2_LIB=""
$2_DIR=""
$2_LDFLAGS=""
if test x"$9" = x; then
GB_WARNING([$3 is disabled])
else
GB_WARNING([$9])
fi
fi
AC_SUBST($2_INC)
AC_SUBST($2_LIB)
AC_SUBST($2_LDFLAGS)
AC_SUBST($2_DIR)
AC_SUBST($2_PATH)
])
## ---------------------------------------------------------------------------
## GB_COMPONENT_SEARCH
## Component detection macro that uses GB_COMPONENT_PKG_CONFIG first, and
## then GB_COMPONENT.
##
## $1 = Component key in lower case (ex: postgresql)
## $2 = Component key in upper case (ex: POSTGRESQL)
## $3 = Component name (ex: PostgreSQL)
## $4 = Sub-directory name
## $5 = pkg-config module name (optional)
## $6 = How to get include path (must return it in gb_val)
## $7 = How to get library path (must return it in gb_val)
## $8 = Libraries
## $9 = Compiler flags (optional)
## $10 = Warning message (optional)
##
## => defines HAVE_*_COMPONENT (to know if you can compile the component)
## *_INC (for the compiler) and *_LIB (for the linker)
## ---------------------------------------------------------------------------
AC_DEFUN([GB_COMPONENT_SEARCH],
[
gb_in_component_search=yes
GB_COMPONENT_PKG_CONFIG(
$1,
$2,
$3,
$4,
$5,
$10
)
gb_in_component_search=no
if test -z "${$2_LIB}"; then
GB_COMPONENT(
$1,
$2,
$3,
$4,
$6,
$7,
$8,
$9,
$10
)
fi
])
## ---------------------------------------------------------------------------
## GB_COMPONENT_SEARCH_BOTH
## Component detection macro that uses GB_COMPONENT_PKG_CONFIG and
## GB_COMPONENT. both having to succeed
##
## $1 = Component key in lower case (ex: postgresql)
## $2 = Component key in upper case (ex: POSTGRESQL)
## $3 = Component name (ex: gb.db.postgresql)
## $4 = Sub-directory name
## $5 = pkg-config module name (optional)
## $6 = How to get include path (must return it in gb_val)
## $7 = How to get library path (must return it in gb_val)
## $8 = Libraries
## $9 = Compiler flags (optional)
## $10 = Warning message (optional)
##
## => defines HAVE_*_COMPONENT (to know if you can compile the component)
## *_INC (for the compiler) and *_LIB (for the linker)
## ---------------------------------------------------------------------------
AC_DEFUN([GB_COMPONENT_SEARCH_BOTH],
[
GB_COMPONENT_PKG_CONFIG(
$1,
$2,
$3,
$4,
$5,
$10
)
if test ! -e DISABLED.$3; then
GB_COMPONENT(
$1,
$2,
$3,
$4,
$6,
$7,
$8,
$9,
$10
)
fi
])
## ---------------------------------------------------------------------------
## GB_FIND_QT_MOC
## Find QT moc compiler
##
## $1 = QT version
## $2 = components to disable
##
## Returns a path list in $gb_val
## ---------------------------------------------------------------------------
AC_DEFUN([GB_FIND_QT_MOC],
[
gb_path_qt_moc=no
if test x$1 = x; then
gb_qt_version=3
else
gb_qt_version=$1
fi
AC_ARG_WITH(moc,
[ --with-moc The path to the QT moc compiler. ],
[ gb_path_qt_moc="$withval" ])
AC_MSG_CHECKING(for QT meta-object compiler)
AC_CACHE_VAL(gb_cv_path_qt_moc, [
gb_val=""
if test "$gb_path_qt_moc" = no; then
for gb_dir in $QTDIR /usr/lib/qt$gb_qt_version /usr/lib/qt/$gb_qt_version /usr/local/lib/qt$gb_qt_version /usr/local/lib/qt/$gb_qt_version /usr/local/qt$gb_qt_version /usr/local/qt/$gb_qt_version /usr/share/qt$gb_qt_version /usr/qt/$gb_qt_version /usr/pkg/qt$gb_qt_version /usr/pkg /usr; do
gb_dir=$gb_dir/bin
if test -r "$gb_dir/moc"; then
if test "x`$gb_dir/moc -v 2>&1 | grep " $gb_qt_version\."`" != x; then
gb_val=$gb_dir/moc
break
fi
fi
done
gb_path_qt_moc=$gb_val
fi
gb_cv_path_qt_moc=$gb_path_qt_moc
])
AC_MSG_RESULT([$gb_cv_path_qt_moc])
if test x"$gb_cv_path_qt_moc" = x; then
GB_WARNING([QT moc compiler not found. Try --with-moc option.])
MOC=""
touch DISABLED
else
MOC=$gb_cv_path_qt_moc
fi
AC_SUBST(MOC)
])
## ---------------------------------------------------------------------------
## GB_CHECK_XWINDOW
## Check the X-Window system installation
##
## $1 = components to disable
## ---------------------------------------------------------------------------
AC_DEFUN([GB_CHECK_XWINDOW],
[
AC_PATH_XTRA
if test x"$have_x" = xyes; then
if test -z `echo $X_LIBS | grep "\-lX11"`; then
X_LIBS="$X_LIBS -lX11"
fi
if test -z `echo $X_LIBS | grep "\-lXext"`; then
X_LIBS="$X_LIBS -lXext"
fi
X_LIBS="$X_PRE_LIBS $X_LIBS"
else
touch DISABLED
fi
])
## ---------------------------------------------------------------------------
## Some macros
## ---------------------------------------------------------------------------
dnl Like AC_CHECK_HEADER, but it uses the already-computed -I directories.
AC_DEFUN([AC_CHECK_X_HEADER], [
ac_save_CPPFLAGS="$CPPFLAGS"
if test \! -z "$includedir" ; then
CPPFLAGS="$CPPFLAGS -I$includedir"
fi
CPPFLAGS="$CPPFLAGS $X_CFLAGS"
AC_CHECK_HEADER([$1],[$2],[$3])
CPPFLAGS="$ac_save_CPPFLAGS"
])
dnl Like AC_CHECK_LIB, but it used the -L dirs set up by the X checks.
AC_DEFUN([AC_CHECK_X_LIB], [
ac_save_CPPFLAGS="$CPPFLAGS"
ac_save_LDFLAGS="$LDFLAGS"
if test \! -z "$includedir" ; then
CPPFLAGS="$CPPFLAGS -I$includedir"
fi
dnl note: $X_CFLAGS includes $x_includes
CPPFLAGS="$CPPFLAGS $X_CFLAGS"
if test \! -z "$libdir" ; then
LDFLAGS="$LDFLAGS -L$libdir"
fi
dnl note: $X_LIBS includes $x_libraries
LDFLAGS="$LDFLAGS $X_LIBS"
AC_CHECK_LIB([$1], [$2], [$3], [$4], [$5])
CPPFLAGS="$ac_save_CPPFLAGS"
LDFLAGS="$ac_save_LDFLAGS"]
)
dnl Check if it is possible to turn off run time type information (RTTI)
AC_DEFUN([AC_PROG_CXX_FNO_RTTI],
[AC_CACHE_CHECK(whether ${CXX-g++} accepts -fno-rtti, ac_cv_prog_cxx_fno_rtti,
[echo 'void f(){}' > conftest.cc
if test -z "`${CXX-g++} -fno-rtti -c conftest.cc 2>&1`"; then
ac_cv_prog_cxx_fno_rtti=yes
CXXFLAGS="${CXXFLAGS} -fno-rtti"
else
ac_cv_prog_cxx_fno_rtti=no
fi
rm -f conftest*
])])
dnl Check if the type socklen_t is defined anywhere
AC_DEFUN([AC_C_SOCKLEN_T],
[AC_CACHE_CHECK(for socklen_t, ac_cv_c_socklen_t,
[ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#include <sys/types.h>
#include <sys/socket.h>
]], [[
socklen_t foo;
]])],[
ac_cv_c_socklen_t=yes
],[
ac_cv_c_socklen_t=no
AC_DEFINE(socklen_t,int)
])])])
dnl Check for sys_errlist[] and sys_nerr, check for declaration
dnl Check nicked from aclocal.m4 from GNU bash 2.01
AC_DEFUN([AC_SYS_ERRLIST],
[AC_MSG_CHECKING([for sys_errlist and sys_nerr])
AC_CACHE_VAL(ac_cv_sys_errlist,
[AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <errno.h>]], [[extern char *sys_errlist[];
extern int sys_nerr;
char *msg = sys_errlist[sys_nerr - 1];]])],[ac_cv_sys_errlist=yes],[ac_cv_sys_errlist=no])])dnl
AC_MSG_RESULT($ac_cv_sys_errlist)
if test $ac_cv_sys_errlist = yes; then
AC_DEFINE(HAVE_SYS_ERRLIST)
fi
])
dnl @synopsis AX_CFLAGS_GCC_OPTION (optionflag [,[shellvar][,[A][,[NA]]])
dnl
dnl AX_CFLAGS_GCC_OPTION(-fvomit-frame) would show a message as like
dnl "checking CFLAGS for gcc -fvomit-frame ... yes" and adds the
dnl optionflag to CFLAGS if it is understood. You can override the
dnl shellvar-default of CFLAGS of course. The order of arguments stems
dnl from the explicit macros like AX_CFLAGS_WARN_ALL.
dnl
dnl The cousin AX_CXXFLAGS_GCC_OPTION would check for an option to add
dnl to CXXFLAGS - and it uses the autoconf setup for C++ instead of C
dnl (since it is possible to use different compilers for C and C++).
dnl
dnl The macro is a lot simpler than any special AX_CFLAGS_* macro (or
dnl ac_cxx_rtti.m4 macro) but allows to check for arbitrary options.
dnl However, if you use this macro in a few places, it would be great
dnl if you would make up a new function-macro and submit it to the
dnl ac-archive.
dnl
dnl - $1 option-to-check-for : required ("-option" as non-value)
dnl - $2 shell-variable-to-add-to : CFLAGS (or CXXFLAGS in the other case)
dnl - $3 action-if-found : add value to shellvariable
dnl - $4 action-if-not-found : nothing
dnl
dnl note: in earlier versions, $1-$2 were swapped. We try to detect the
dnl situation and accept a $2=~/-/ as being the old
dnl option-to-check-for.
dnl
dnl also: there are other variants that emerged from the original macro
dnl variant which did just test an option to be possibly added.
dnl However, some compilers accept an option silently, or possibly for
dnl just another option that was not intended. Therefore, we have to do
dnl a generic test for a compiler family. For gcc we check "-pedantic"
dnl being accepted which is also understood by compilers who just want
dnl to be compatible with gcc even when not being made from gcc
dnl sources.
dnl
dnl see also:
dnl
dnl AX_CFLAGS_SUN_OPTION AX_CFLAGS_HPUX_OPTION
dnl AX_CFLAGS_AIX_OPTION AX_CFLAGS_IRIX_OPTION
dnl
dnl @category C
dnl @author Guido Draheim <guidod@gmx.de>
dnl @version 2003-11-04
dnl @license GPLWithACException
AC_DEFUN([AX_CFLAGS_GCC_OPTION_OLD], [dnl
AS_VAR_PUSHDEF([FLAGS],[CFLAGS])dnl
AS_VAR_PUSHDEF([VAR],[ac_cv_cflags_gcc_option_$2])dnl
AC_CACHE_CHECK([m4_ifval($1,$1,FLAGS) for gcc m4_ifval($2,$2,-option)],
VAR,[VAR="no, unknown"
AC_LANG_SAVE
AC_LANG([C])
ac_save_[]FLAGS="$[]FLAGS"
for ac_arg dnl
in "-pedantic % m4_ifval($2,$2,-option)" dnl GCC
#
do FLAGS="$ac_save_[]FLAGS "`echo $ac_arg | sed -e 's,%%.*,,' -e 's,%,,'`
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[return 0;]])],[VAR=`echo $ac_arg | sed -e 's,.*% *,,'` ; break],[])
done
FLAGS="$ac_save_[]FLAGS"
AC_LANG_RESTORE
])
case ".$VAR" in
.ok|.ok,*) m4_ifvaln($3,$3) ;;
.|.no|.no,*) m4_ifvaln($4,$4) ;;
*) m4_ifvaln($3,$3,[
if echo " $[]m4_ifval($1,$1,FLAGS) " | grep " $VAR " 2>&1 >/dev/null
then AC_RUN_LOG([: m4_ifval($1,$1,FLAGS) does contain $VAR])
else AC_RUN_LOG([: m4_ifval($1,$1,FLAGS)="$m4_ifval($1,$1,FLAGS) $VAR"])
m4_ifval($1,$1,FLAGS)="$m4_ifval($1,$1,FLAGS) $VAR"
fi ]) ;;
esac
AS_VAR_POPDEF([VAR])dnl
AS_VAR_POPDEF([FLAGS])dnl
])
dnl the only difference - the LANG selection... and the default FLAGS
AC_DEFUN([AX_CXXFLAGS_GCC_OPTION_OLD], [dnl
AS_VAR_PUSHDEF([FLAGS],[CXXFLAGS])dnl
AS_VAR_PUSHDEF([VAR],[ac_cv_cxxflags_gcc_option_$2])dnl
AC_CACHE_CHECK([m4_ifval($1,$1,FLAGS) for gcc m4_ifval($2,$2,-option)],
VAR,[VAR="no, unknown"
AC_LANG_SAVE
AC_LANG_CXX
ac_save_[]FLAGS="$[]FLAGS"
for ac_arg dnl
in "-pedantic % m4_ifval($2,$2,-option)" dnl GCC
#
do FLAGS="$ac_save_[]FLAGS "`echo $ac_arg | sed -e 's,%%.*,,' -e 's,%,,'`
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[return 0;]])],[VAR=`echo $ac_arg | sed -e 's,.*% *,,'` ; break],[])
done
FLAGS="$ac_save_[]FLAGS"
AC_LANG_RESTORE
])
case ".$VAR" in
.ok|.ok,*) m4_ifvaln($3,$3) ;;
.|.no|.no,*) m4_ifvaln($4,$4) ;;
*) m4_ifvaln($3,$3,[
if echo " $[]m4_ifval($1,$1,FLAGS) " | grep " $VAR " 2>&1 >/dev/null
then AC_RUN_LOG([: m4_ifval($1,$1,FLAGS) does contain $VAR])
else AC_RUN_LOG([: m4_ifval($1,$1,FLAGS)="$m4_ifval($1,$1,FLAGS) $VAR"])
m4_ifval($1,$1,FLAGS)="$m4_ifval($1,$1,FLAGS) $VAR"
fi ]) ;;
esac
AS_VAR_POPDEF([VAR])dnl
AS_VAR_POPDEF([FLAGS])dnl
])
dnl -------------------------------------------------------------------------
AC_DEFUN([AX_CFLAGS_GCC_OPTION_NEW], [dnl
AS_VAR_PUSHDEF([FLAGS],[CFLAGS])dnl
AS_VAR_PUSHDEF([VAR],[ac_cv_cflags_gcc_option_$1])dnl
AC_CACHE_CHECK([m4_ifval($2,$2,FLAGS) for gcc m4_ifval($1,$1,-option)],
VAR,[VAR="no, unknown"
AC_LANG_SAVE
AC_LANG([C])
ac_save_[]FLAGS="$[]FLAGS"
for ac_arg dnl
in "-pedantic % m4_ifval($1,$1,-option)" dnl GCC
#
do FLAGS="$ac_save_[]FLAGS "`echo $ac_arg | sed -e 's,%%.*,,' -e 's,%,,'`
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[return 0;]])],[VAR=`echo $ac_arg | sed -e 's,.*% *,,'` ; break],[])
done
FLAGS="$ac_save_[]FLAGS"
AC_LANG_RESTORE
])
case ".$VAR" in
.ok|.ok,*) m4_ifvaln($3,$3) ;;
.|.no|.no,*) m4_ifvaln($4,$4) ;;
*) m4_ifvaln($3,$3,[
if echo " $[]m4_ifval($2,$2,FLAGS) " | grep " $VAR " 2>&1 >/dev/null
then AC_RUN_LOG([: m4_ifval($2,$2,FLAGS) does contain $VAR])
else AC_RUN_LOG([: m4_ifval($2,$2,FLAGS)="$m4_ifval($2,$2,FLAGS) $VAR"])
m4_ifval($2,$2,FLAGS)="$m4_ifval($2,$2,FLAGS) $VAR"
fi ]) ;;
esac
AS_VAR_POPDEF([VAR])dnl
AS_VAR_POPDEF([FLAGS])dnl
])
dnl the only difference - the LANG selection... and the default FLAGS
AC_DEFUN([AX_CXXFLAGS_GCC_OPTION_NEW], [dnl
AS_VAR_PUSHDEF([FLAGS],[CXXFLAGS])dnl
AS_VAR_PUSHDEF([VAR],[ac_cv_cxxflags_gcc_option_$1])dnl
AC_CACHE_CHECK([m4_ifval($2,$2,FLAGS) for gcc m4_ifval($1,$1,-option)],
VAR,[VAR="no, unknown"
AC_LANG_SAVE
AC_LANG_CXX
ac_save_[]FLAGS="$[]FLAGS"
for ac_arg dnl
in "-pedantic % m4_ifval($1,$1,-option)" dnl GCC
#
do FLAGS="$ac_save_[]FLAGS "`echo $ac_arg | sed -e 's,%%.*,,' -e 's,%,,'`
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[return 0;]])],[VAR=`echo $ac_arg | sed -e 's,.*% *,,'` ; break],[])
done
FLAGS="$ac_save_[]FLAGS"
AC_LANG_RESTORE
])
case ".$VAR" in
.ok|.ok,*) m4_ifvaln($3,$3) ;;
.|.no|.no,*) m4_ifvaln($4,$4) ;;
*) m4_ifvaln($3,$3,[
if echo " $[]m4_ifval($2,$2,FLAGS) " | grep " $VAR " 2>&1 >/dev/null
then AC_RUN_LOG([: m4_ifval($2,$2,FLAGS) does contain $VAR])
else AC_RUN_LOG([: m4_ifval($2,$2,FLAGS)="$m4_ifval($2,$2,FLAGS) $VAR"])
m4_ifval($2,$2,FLAGS)="$m4_ifval($2,$2,FLAGS) $VAR"
fi ]) ;;
esac
AS_VAR_POPDEF([VAR])dnl
AS_VAR_POPDEF([FLAGS])dnl
])
AC_DEFUN([AX_CFLAGS_GCC_OPTION],[ifelse(m4_bregexp([$2],[-]),-1,
[AX_CFLAGS_GCC_OPTION_NEW($@)],[AX_CFLAGS_GCC_OPTION_OLD($@)])])
AC_DEFUN([AX_CXXFLAGS_GCC_OPTION],[ifelse(m4_bregexp([$2],[-]),-1,
[AX_CXXFLAGS_GCC_OPTION_NEW($@)],[AX_CXXFLAGS_GCC_OPTION_OLD($@)])])
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