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configure.in
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configure.in
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# Process this file with autoconf to produce a configure script.
# require autoconf 2.54
AC_PREREQ(2.54)
dnl ***********************************
dnl *** include special GLib macros ***
dnl ***********************************
m4_define(glib_configure_in)
#
# The following version number definitions apply to GLib, GModule, GObject,
# GThread and GIO as a whole, so if changes occurred in any of them, they are
# all treated with the same interface and binary age.
#
# Making releases:
# glib_micro_version += 1;
# glib_interface_age += 1;
# glib_binary_age += 1;
# if any functions have been added, set glib_interface_age to 0.
# if backwards compatibility has been broken,
# set glib_binary_age _and_ glib_interface_age to 0.
#
m4_define([glib_major_version], [2])
m4_define([glib_minor_version], [20])
m4_define([glib_micro_version], [3])
m4_define([glib_interface_age], [3])
m4_define([glib_binary_age],
[m4_eval(100 * glib_minor_version + glib_micro_version)])
m4_define([glib_version],
[glib_major_version.glib_minor_version.glib_micro_version])
# libtool version related macros
m4_define([glib_lt_release], [glib_major_version.glib_minor_version])
m4_define([glib_lt_current],
[m4_eval(100 * glib_minor_version + glib_micro_version - glib_interface_age)])
m4_define([glib_lt_revision], [glib_interface_age])
m4_define([glib_lt_age], [m4_eval(glib_binary_age - glib_interface_age)])
m4_define([glib_lt_current_minus_age],
[m4_eval(glib_lt_current - glib_lt_age)])
# if the minor version number is odd, then we want debugging. Otherwise
# we only want minimal debugging support.
m4_define([glib_debug_default],
[m4_if(m4_eval(glib_minor_version % 2), [1], [yes], [minimum])])dnl
AC_INIT(glib, [glib_version],
[http://bugzilla.gnome.org/enter_bug.cgi?product=glib])
AC_CONFIG_SRCDIR([glib/glib.h])
# Save this value here, since automake will set cflags later
cflags_set=${CFLAGS+set}
AM_INIT_AUTOMAKE([no-define])
# Specify a configuration file
AM_CONFIG_HEADER([config.h])
GLIB_MAJOR_VERSION=glib_major_version
GLIB_MINOR_VERSION=glib_minor_version
GLIB_MICRO_VERSION=glib_micro_version
GLIB_INTERFACE_AGE=glib_interface_age
GLIB_BINARY_AGE=glib_binary_age
GLIB_VERSION=glib_version
AC_SUBST(GLIB_MAJOR_VERSION)
AC_SUBST(GLIB_MINOR_VERSION)
AC_SUBST(GLIB_MICRO_VERSION)
AC_SUBST(GLIB_VERSION)
AC_SUBST(GLIB_INTERFACE_AGE)
AC_SUBST(GLIB_BINARY_AGE)
AC_DEFINE(GLIB_MAJOR_VERSION, [glib_major_version],
[Define to the GLIB major version])
AC_DEFINE(GLIB_MINOR_VERSION, [glib_minor_version],
[Define to the GLIB minor version])
AC_DEFINE(GLIB_MICRO_VERSION, [glib_micro_version],
[Define to the GLIB micro version])
AC_DEFINE(GLIB_INTERFACE_AGE, [glib_interface_age],
[Define to the GLIB interface age])
AC_DEFINE(GLIB_BINARY_AGE, [glib_binary_age],
[Define to the GLIB binary age])
# libtool versioning
LT_RELEASE=glib_lt_release
LT_CURRENT=glib_lt_current
LT_REVISION=glib_lt_revision
LT_AGE=glib_lt_age
LT_CURRENT_MINUS_AGE=glib_lt_current_minus_age
AC_SUBST(LT_RELEASE)
AC_SUBST(LT_CURRENT)
AC_SUBST(LT_REVISION)
AC_SUBST(LT_AGE)
AC_SUBST(LT_CURRENT_MINUS_AGE)
dnl Initialize maintainer mode
AM_MAINTAINER_MODE
AC_CANONICAL_HOST
AC_MSG_CHECKING([for the BeOS])
case $host in
*-*-beos*)
glib_native_beos="yes"
;;
*)
glib_native_beos="no"
;;
esac
AC_MSG_RESULT([$glib_native_beos])
dnl
AC_MSG_CHECKING([for Win32])
LIB_EXE_MACHINE_FLAG=X86
case "$host" in
*-*-mingw*)
glib_native_win32=yes
glib_pid_type='void *'
glib_cv_stack_grows=no
# Unfortunately the mingw implementations of C99-style snprintf and vsnprintf
# don't seem to be quite good enough, at least not in mingw-runtime-3.14.
# (Sorry, I don't know exactly what is the problem, but it is related to
# floating point formatting and decimal point vs. comma.)
# The simple tests in AC_FUNC_VSNPRINTF_C99 and AC_FUNC_SNPRINTF_C99 aren't
# rigorous enough to notice, though.
# So preset the autoconf cache variables.
ac_cv_func_vsnprintf_c99=no
ac_cv_func_snprintf_c99=no
case "$host" in
x86_64-*-*)
LIB_EXE_MACHINE_FLAG=X64
;;
esac
;;
*)
glib_native_win32=no
glib_pid_type=int
;;
esac
case $host in
*-*-linux*)
glib_os_linux=yes
;;
esac
AC_MSG_RESULT([$glib_native_win32])
AC_SUBST(LIB_EXE_MACHINE_FLAG)
glib_have_carbon=no
AC_MSG_CHECKING([for Mac OS X Carbon support])
AC_TRY_CPP([
#include <Carbon/Carbon.h>
#include <CoreServices/CoreServices.h>
], glib_have_carbon=yes)
AC_MSG_RESULT([$glib_have_carbon])
AM_CONDITIONAL(OS_WIN32, [test "$glib_native_win32" = "yes"])
AM_CONDITIONAL(OS_WIN32_X64, [test "$LIB_EXE_MACHINE_FLAG" = "X64"])
AM_CONDITIONAL(OS_UNIX, [test "$glib_native_win32" != "yes"])
AM_CONDITIONAL(OS_LINUX, [test "$glib_os_linux" = "yes"])
AM_CONDITIONAL(OS_CARBON, [test "$glib_have_carbon" = "yes"])
if test "$glib_native_win32" = "yes"; then
AC_CHECK_TOOL(WINDRES, windres, no)
if test "$WINDRES" = no; then
AC_MSG_ERROR([*** Could not find an implementation of windres in your PATH.])
fi
AC_CHECK_TOOL(NM, nm, no)
if test "$NM" = no; then
AC_MSG_ERROR([*** Could not find an implementation of nm in your PATH.])
fi
AC_CHECK_TOOL(RANLIB, ranlib, :)
AC_CHECK_PROG(ms_librarian, [lib.exe], [yes], [no])
fi
AM_CONDITIONAL(MS_LIB_AVAILABLE, [test x$ms_librarian = xyes])
if test "$glib_native_win32" != yes; then
# libtool option to control which symbols are exported
# right now, symbols starting with _ are not exported
LIBTOOL_EXPORT_OPTIONS='-export-symbols-regex "^g.*"'
else
# We currently use .def files on Windows
LIBTOOL_EXPORT_OPTIONS=
fi
AC_SUBST(LIBTOOL_EXPORT_OPTIONS)
if test "x$glib_have_carbon" = "xyes"; then
AC_DEFINE(HAVE_CARBON, 1, [define to 1 if Carbon is available])
LDFLAGS="$LDFLAGS -framework Carbon"
fi
dnl declare --enable-* args and collect ac_help strings
AC_ARG_ENABLE(debug,
AC_HELP_STRING([--enable-debug=@<:@no/minimum/yes@:>@],
[turn on debugging @<:@default=glib_debug_default@:>@]),,
enable_debug=glib_debug_default)
AC_ARG_ENABLE(gc_friendly,
[AC_HELP_STRING([--enable-gc-friendly],
[turn on garbage collector friendliness [default=no]])],,
[enable_gc_friendly=no])
AC_ARG_ENABLE(mem_pools,
[AC_HELP_STRING([--disable-mem-pools],
[disable all glib memory pools])],,
[disable_mem_pools=no])
AC_ARG_ENABLE(threads,
[AC_HELP_STRING([--enable-threads],
[turn on basic thread support [default=yes]
([=no] will override --with-threads)])],,
[enable_threads=yes])
AC_ARG_ENABLE(rebuilds,
[AC_HELP_STRING([--disable-rebuilds],
[disable all source autogeneration rules])],,
[enable_rebuilds=yes])
AC_ARG_ENABLE(visibility,
[AC_HELP_STRING([--disable-visibility],
[don't use ELF visibility attributes])],,
[enable_visibility=yes])
if test "x$enable_threads" != "xyes"; then
enable_threads=no
fi
AC_MSG_CHECKING([whether to enable garbage collector friendliness])
if test "x$enable_gc_friendly" = "xyes"; then
AC_DEFINE(ENABLE_GC_FRIENDLY_DEFAULT, 1, [Whether to enable GC friendliness by default])
AC_MSG_RESULT([yes])
else
AC_MSG_RESULT([no])
fi
AC_MSG_CHECKING([whether to disable memory pools])
if test "x$disable_mem_pools" = "xno"; then
AC_MSG_RESULT([no])
else
AC_DEFINE(DISABLE_MEM_POOLS, [1], [Whether to disable memory pools])
AC_SUBST(DISABLE_MEM_POOLS)
AC_MSG_RESULT([yes])
fi
dnl Checks for programs.
AC_PROG_CC
AC_PROG_CPP
dnl Check for a working C++ compiler, but do not bail out, if none is found.
AC_CHECK_PROGS(CXX, [$CCC c++ g++ gcc CC cxx cc++ cl], [gcc])
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_COMPILE(,[class a { int b; } c;], ,CXX=)
AM_CONDITIONAL(HAVE_CXX, [test "$CXX" != ""])
AC_LANG_RESTORE
AM_PROG_CC_STDC
AM_PROG_CC_C_O
AC_PROG_INSTALL
AC_SYS_LARGEFILE
#
# Find pkg-config
#
AC_PATH_PROG(PKG_CONFIG, [pkg-config], [no])
if test x$PKG_CONFIG = xno ; then
AC_MSG_ERROR([*** pkg-config not found. See http://www.freedesktop.org/software/pkgconfig/])
fi
if $PKG_CONFIG --atleast-pkgconfig-version 0.16 ; then
:
else
AC_MSG_ERROR([*** pkg-config too old; version 0.16 or better required.])
fi
if test "x$enable_debug" = "xyes"; then
if test x$cflags_set != xset ; then
case " $CFLAGS " in
*[[\ \ ]]-g[[\ \ ]]*) ;;
*) CFLAGS="$CFLAGS -g" ;;
esac
fi
GLIB_DEBUG_FLAGS="-DG_ENABLE_DEBUG"
else
GLIB_DEBUG_FLAGS="-DG_DISABLE_CAST_CHECKS"
if test "x$enable_debug" = "xno"; then
GLIB_DEBUG_FLAGS="$GLIB_DEBUG_FLAGS -DG_DISABLE_ASSERT -DG_DISABLE_CHECKS"
fi
fi
if test "x$enable_visibility" = "xno"; then
GLIB_DEBUG_FLAGS="$GLIB_DEBUG_FLAGS -DDISABLE_VISIBILITY"
fi
# Ensure MSVC-compatible struct packing convention is used when
# compiling for Win32 with gcc.
# What flag to depends on gcc version: gcc3 uses "-mms-bitfields", while
# gcc2 uses "-fnative-struct".
if test x"$glib_native_win32" = xyes; then
if test x"$GCC" = xyes; then
msnative_struct=''
AC_MSG_CHECKING([how to get MSVC-compatible struct packing])
if test -z "$ac_cv_prog_CC"; then
our_gcc="$CC"
else
our_gcc="$ac_cv_prog_CC"
fi
case `$our_gcc --version | sed -e 's,\..*,.,' -e q` in
2.)
if $our_gcc -v --help 2>/dev/null | grep fnative-struct >/dev/null; then
msnative_struct='-fnative-struct'
fi
;;
*)
if $our_gcc -v --help 2>/dev/null | grep ms-bitfields >/dev/null; then
msnative_struct='-mms-bitfields'
fi
;;
esac
if test x"$msnative_struct" = x ; then
AC_MSG_RESULT([no way])
AC_MSG_WARN([produced libraries might be incompatible with MSVC-compiled code])
else
CFLAGS="$CFLAGS $msnative_struct"
AC_MSG_RESULT([${msnative_struct}])
fi
fi
fi
GLIB_EXTRA_CFLAGS="${msnative_struct}"
AC_SUBST(GLIB_EXTRA_CFLAGS)
AC_EXEEXT
# define a MAINT-like variable REBUILD which is set if Perl
# and awk are found, so autogenerated sources can be rebuilt
AC_PROG_AWK
AC_CHECK_PROGS(PERL, [perl5 perl])
# We would like indent, but don't require it.
AC_CHECK_PROG(INDENT, indent, indent)
REBUILD=\#
if test "x$enable_rebuilds" = "xyes" && \
test -n "$PERL" && \
$PERL -e 'exit !($] >= 5.002)' > /dev/null 2>&1 && \
test -n "$AWK" ; then
REBUILD=
fi
AC_SUBST(REBUILD)
# Need full path to Perl for glib-mkenums
#
if test "x$PERL" != x ; then
AC_PATH_PROG(PERL_PATH, [$PERL])
fi
if test "x$PERL_PATH" = x ; then
PERL_PATH="/usr/bin/env perl"
fi
AC_SUBST(PERL_PATH)
# Need suitable python path for greport
AM_PATH_PYTHON(2.4,,PYTHON="/usr/bin/env python2.4")
dnl ***********************
dnl *** Tests for iconv ***
dnl ***********************
dnl
dnl We do this before the gettext checks, to avoid distortion
dnl On Windows we use a native implementation
if test x"$glib_native_win32" = xyes; then
with_libiconv=native
else
AC_ARG_WITH(libiconv,
[AC_HELP_STRING([--with-libiconv=@<:@no/gnu/native@:>@],
[use the libiconv library])],,
[with_libiconv=maybe])
found_iconv=no
case $with_libiconv in
maybe)
# Check in the C library first
AC_CHECK_FUNC(iconv_open, [with_libiconv=no; found_iconv=yes])
# Check if we have GNU libiconv
if test $found_iconv = "no"; then
AC_CHECK_LIB(iconv, libiconv_open, [with_libiconv=gnu; found_iconv=yes])
fi
# Check if we have a iconv in -liconv, possibly from vendor
if test $found_iconv = "no"; then
AC_CHECK_LIB(iconv, iconv_open, [with_libiconv=native; found_iconv=yes])
fi
;;
no)
AC_CHECK_FUNC(iconv_open, [with_libiconv=no; found_iconv=yes])
;;
gnu|yes)
AC_CHECK_LIB(iconv, libiconv_open, [with_libiconv=gnu; found_iconv=yes])
;;
native)
AC_CHECK_LIB(iconv, iconv_open, [with_libiconv=native; found_iconv=yes])
;;
esac
if test "x$found_iconv" = "xno" ; then
AC_MSG_ERROR([*** No iconv() implementation found in C library or libiconv])
fi
fi
gl_GLIBC21
AC_ARG_ENABLE(iconv-cache,
[AC_HELP_STRING([--enable-iconv-cache=@<:@yes/no/auto@:>@],
[cache iconv descriptors [default=auto]])],,
[enable_iconv_cache=auto])
AC_MSG_CHECKING([Whether to cache iconv descriptors])
case $enable_iconv_cache in
auto)
if test $ac_cv_gnu_library_2_1 = yes; then
enable_iconv_cache=no
else
enable_iconv_cache=yes
fi
;;
yes|no)
;;
*) AC_MSG_ERROR([Value given to --enable-iconv-cache must be one of yes, no or auto])
;;
esac
if test $enable_iconv_cache = yes; then
AC_DEFINE(NEED_ICONV_CACHE,1,[Do we cache iconv descriptors])
fi
AC_MSG_RESULT($enable_iconv_cache)
dnl
dnl gettext support
dnl
ALL_LINGUAS="`grep -v '^#' "$srcdir/po/LINGUAS" | tr '\n' ' '`"
AC_SUBST([CONFIG_STATUS_DEPENDENCIES],['$(top_srcdir)/po/LINGUAS'])
GLIB_GNU_GETTEXT
if test "$gt_cv_have_gettext" != "yes" ; then
AC_MSG_ERROR([
*** You must have either have gettext support in your C library, or use the
*** GNU gettext library. (http://www.gnu.org/software/gettext/gettext.html
])
fi
LIBS="$INTLLIBS $LIBS"
GETTEXT_PACKAGE=glib20
AC_SUBST(GETTEXT_PACKAGE)
AC_DEFINE_UNQUOTED(GETTEXT_PACKAGE, ["$GETTEXT_PACKAGE"],
[Define the gettext package to be used])
GLIB_DEFINE_LOCALEDIR(GLIB_LOCALE_DIR)
dnl
dnl Now we are done with gettext checks, figure out ICONV_LIBS
dnl
if test x"$glib_native_win32" != xyes; then
if test x$with_libiconv != xno ; then
case " $INTLLIBS " in
*[[\ \ ]]-liconv[[\ \ ]]*) ;;
*) ICONV_LIBS="-liconv" ;;
esac
fi
fi
AC_SUBST(ICONV_LIBS)
case $with_libiconv in
gnu)
AC_DEFINE(USE_LIBICONV_GNU, 1, [Using GNU libiconv])
;;
native)
AC_DEFINE(USE_LIBICONV_NATIVE, 1, [Using a native implementation of iconv in a separate library])
;;
esac
dnl Initialize libtool
AM_DISABLE_STATIC
AC_LIBTOOL_WIN32_DLL
AM_PROG_LIBTOOL
dnl when using libtool 2.x create libtool early, because it's used in configure
m4_ifdef([LT_OUTPUT], [LT_OUTPUT])
if test "x$GCC" = "xyes"; then
case " $CFLAGS " in
*[[\ \ ]]-Wall[[\ \ ]]*) ;;
*) CFLAGS="$CFLAGS -Wall" ;;
esac
fi
CPPFLAGS="$CPPFLAGS -DG_DISABLE_SINGLE_INCLUDES"
if test "$glib_native_win32" = "yes"; then
if test x$enable_static = xyes -a x$enable_shared = xyes; then
AC_MSG_ERROR([Can not build both shared and static at the same time on Windows.])
fi
if test x$enable_static = xyes; then
glib_win32_static_compilation=yes
GLIB_WIN32_STATIC_COMPILATION_DEFINE="#define GLIB_STATIC_COMPILATION 1
#define GOBJECT_STATIC_COMPILATION 1"
AC_SUBST(GLIB_WIN32_STATIC_COMPILATION_DEFINE)
fi
fi
AM_CONDITIONAL(OS_WIN32_AND_DLL_COMPILATION, [test x$glib_native_win32 = xyes -a x$glib_win32_static_compilation != xyes])
dnl
dnl DU4 native cc currently needs -std1 for ANSI mode (instead of K&R)
dnl
if test $cross_compiling != yes ; then
AC_MSG_CHECKING([for extra flags to get ANSI library prototypes])
glib_save_LIBS=$LIBS
LIBS="$LIBS -lm"
AC_TRY_RUN([#include <math.h>
int main (void) { return (log(1) != log(1.)); }],
AC_MSG_RESULT(none needed),
glib_save_CFLAGS=$CFLAGS
CFLAGS="$CFLAGS -std1"
AC_TRY_RUN([#include <math.h>
int main (void) { return (log(1) != log(1.)); }],
AC_MSG_RESULT(-std1),
AC_MSG_RESULT()
CFLAGS=$glib_save_CFLAGS
AC_MSG_WARN(
[No ANSI prototypes found in library. (-std1 didn't work.)])
)
)
LIBS=$glib_save_LIBS
fi
dnl NeXTStep cc seems to need this
AC_MSG_CHECKING([for extra flags for POSIX compliance])
AC_TRY_COMPILE([#include <dirent.h>], [DIR *dir;],
AC_MSG_RESULT(none needed),
glib_save_CFLAGS=$CFLAGS
CFLAGS="$CFLAGS -posix"
AC_TRY_COMPILE([#include <dirent.h>], [DIR *dir;],
AC_MSG_RESULT(-posix),
AC_MSG_RESULT()
CFLAGS=$glib_save_CFLAGS
AC_MSG_WARN([Could not determine POSIX flag. (-posix didn't work.)])))
# Checks for header files.
AC_HEADER_STDC
# Checks for library functions.
AC_FUNC_VPRINTF
AC_FUNC_ALLOCA
AC_CHECK_FUNCS(mmap)
AC_CHECK_FUNCS(posix_memalign)
AC_CHECK_FUNCS(memalign)
AC_CHECK_FUNCS(valloc)
AC_CHECK_FUNCS(fsync)
AC_CHECK_FUNCS(atexit on_exit)
AC_CHECK_FUNCS(timegm gmtime_r)
AC_CHECK_SIZEOF(char)
AC_CHECK_SIZEOF(short)
AC_CHECK_SIZEOF(long)
AC_CHECK_SIZEOF(int)
AC_CHECK_SIZEOF(void *)
AC_CHECK_SIZEOF(long long)
AC_CHECK_SIZEOF(__int64)
if test x$ac_cv_sizeof_long = x8 || test x$ac_cv_sizeof_long_long = x8 || test x$ac_cv_sizeof___int64 = x8 ; then
:
else
AC_MSG_ERROR([
*** GLib requires a 64 bit type. You might want to consider
*** using the GNU C compiler.
])
fi
if test x$glib_native_win32 != xyes && test x$ac_cv_sizeof_long_long = x8; then
# long long is a 64 bit integer.
AC_MSG_CHECKING(for format to printf and scanf a guint64)
AC_CACHE_VAL(glib_cv_long_long_format,[
for format in ll q I64; do
AC_TRY_RUN([#include <stdio.h>
int main()
{
long long b, a = -0x3AFAFAFAFAFAFAFALL;
char buffer[1000];
sprintf (buffer, "%${format}u", a);
sscanf (buffer, "%${format}u", &b);
exit (b!=a);
}
],
[glib_cv_long_long_format=${format}
break],
[],[:])
done])
if test -n "$glib_cv_long_long_format"; then
AC_MSG_RESULT(%${glib_cv_long_long_format}u)
AC_DEFINE(HAVE_LONG_LONG_FORMAT,1,[define if system printf can print long long])
if test x"$glib_cv_long_long_format" = xI64; then
AC_DEFINE(HAVE_INT64_AND_I64,1,[define to support printing 64-bit integers with format I64])
fi
else
AC_MSG_RESULT(none)
fi
elif test x$ac_cv_sizeof___int64 = x8; then
# __int64 is a 64 bit integer.
AC_MSG_CHECKING(for format to printf and scanf a guint64)
# We know this is MSVCRT.DLL, and what the formats are
glib_cv_long_long_format=I64
AC_MSG_RESULT(%${glib_cv_long_long_format}u)
AC_DEFINE(HAVE_LONG_LONG_FORMAT,1,[define if system printf can print long long])
AC_DEFINE(HAVE_INT64_AND_I64,1,[define to support printing 64-bit integers with format I64])
fi
dnl long doubles were not used, and a portability problem
dnl AC_C_LONG_DOUBLE
AC_C_CONST
dnl ok, here we try to check whether the systems prototypes for
dnl malloc and friends actually match the prototypes provided
dnl by gmem.h (keep in sync). i currently only know how to check
dnl this reliably with gcc (-Werror), improvements for other
dnl compilers are apprechiated.
SANE_MALLOC_PROTOS=no
AC_MSG_CHECKING([if malloc() and friends prototypes are gmem.h compatible])
glib_save_CFLAGS=$CFLAGS
if test "x$GCC" = "xyes"; then
CFLAGS="$CFLAGS -Werror"
AC_TRY_COMPILE([#include <stdlib.h>], [
void* (*my_calloc_p) (size_t, size_t) = calloc;
void* (*my_malloc_p) (size_t) = malloc;
void (*my_free_p) (void*) = free;
void* (*my_realloc_p) (void*, size_t) = realloc;
my_calloc_p = 0;
my_malloc_p = 0;
my_free_p = 0;
my_realloc_p = 0;
],
AC_DEFINE(SANE_MALLOC_PROTOS, 1,
[Define if you have correct malloc prototypes])
SANE_MALLOC_PROTOS=yes)
fi
AC_MSG_RESULT($SANE_MALLOC_PROTOS)
CFLAGS=$glib_save_CFLAGS
dnl
dnl check in which direction the stack grows
dnl
AC_CACHE_CHECK([for growing stack pointer],glib_cv_stack_grows,[
AC_TRY_RUN([
volatile int *a = 0, *b = 0;
void foo (void);
int main () { volatile int y = 7; a = &y; foo (); return b > a; }
void foo (void) { volatile int x = 5; b = &x; }
],
glib_cv_stack_grows=no
,
glib_cv_stack_grows=yes
,)
])
dnl AC_C_INLINE is useless to us since it bails out too early, we need to
dnl truely know which ones of `inline', `__inline' and `__inline__' are
dnl actually supported.
AC_CACHE_CHECK([for __inline],glib_cv_has__inline,[
AC_COMPILE_IFELSE([
__inline int foo () { return 0; }
int main () { return foo (); }
],
glib_cv_has__inline=yes
,
glib_cv_has__inline=no
,)
])
case x$glib_cv_has__inline in
xyes) AC_DEFINE(G_HAVE___INLINE,1,[Have __inline keyword])
esac
AC_CACHE_CHECK([for __inline__],glib_cv_has__inline__,[
AC_COMPILE_IFELSE([
__inline__ int foo () { return 0; }
int main () { return foo (); }
],
glib_cv_has__inline__=yes
,
glib_cv_has__inline__=no
,)
])
case x$glib_cv_has__inline__ in
xyes) AC_DEFINE(G_HAVE___INLINE__,1,[Have __inline__ keyword])
esac
AC_CACHE_CHECK([for inline], glib_cv_hasinline,[
AC_COMPILE_IFELSE([
#undef inline
inline int foo () { return 0; }
int main () { return foo (); }
],
glib_cv_hasinline=yes
,
glib_cv_hasinline=no
,)
])
case x$glib_cv_hasinline in
xyes) AC_DEFINE(G_HAVE_INLINE,1,[Have inline keyword])
esac
# if we can use inline functions in headers
AC_MSG_CHECKING(if inline functions in headers work)
AC_LINK_IFELSE([
#if defined (G_HAVE_INLINE) && defined (__GNUC__) && defined (__STRICT_ANSI__)
# undef inline
# define inline __inline__
#elif !defined (G_HAVE_INLINE)
# undef inline
# if defined (G_HAVE___INLINE__)
# define inline __inline__
# elif defined (G_HAVE___INLINE)
# define inline __inline
# endif
#endif
int glib_test_func2 (int);
static inline int
glib_test_func1 (void) {
return glib_test_func2 (1);
}
int
main (void) {
int i = 1;
}],[g_can_inline=yes],[g_can_inline=no])
AC_MSG_RESULT($g_can_inline)
dnl *** check for working do while(0) macros ***
AC_CACHE_CHECK([for working do while(0) macros], g_cv_support_dowhile_macros, [
AC_TRY_COMPILE([],[
#define STMT_START do
#define STMT_END while(0)
#define STMT_TEST STMT_START { i = 0; } STMT_END
int main(void) { int i = 1; STMT_TEST; return i; }],
[g_cv_support_dowhile_macros=yes],
[g_cv_support_dowhile_macros=no],
[g_cv_support_dowhile_macros=yes])
])
if test x$g_cv_support_dowhile_macros = xyes; then
AC_DEFINE(HAVE_DOWHILE_MACROS, 1, [define for working do while(0) macros])
fi
# check for flavours of varargs macros
AC_MSG_CHECKING(for ISO C99 varargs macros in C)
AC_TRY_COMPILE([],[
int a(int p1, int p2, int p3);
#define call_a(...) a(1,__VA_ARGS__)
call_a(2,3);
],g_have_iso_c_varargs=yes,g_have_iso_c_varargs=no)
AC_MSG_RESULT($g_have_iso_c_varargs)
AC_MSG_CHECKING(for ISO C99 varargs macros in C++)
if test "$CXX" = ""; then
dnl No C++ compiler
g_have_iso_cxx_varargs=no
else
AC_LANG_CPLUSPLUS
AC_TRY_COMPILE([],[
int a(int p1, int p2, int p3);
#define call_a(...) a(1,__VA_ARGS__)
call_a(2,3);
],g_have_iso_cxx_varargs=yes,g_have_iso_cxx_varargs=no)
AC_LANG_C
fi
AC_MSG_RESULT($g_have_iso_cxx_varargs)
AC_MSG_CHECKING(for GNUC varargs macros)
AC_TRY_COMPILE([],[
int a(int p1, int p2, int p3);
#define call_a(params...) a(1,params)
call_a(2,3);
],g_have_gnuc_varargs=yes,g_have_gnuc_varargs=no)
AC_MSG_RESULT($g_have_gnuc_varargs)
# check for GNUC visibility support
AC_MSG_CHECKING(for GNUC visibility attribute)
GLIB_CHECK_COMPILE_WARNINGS([
void
__attribute__ ((visibility ("hidden")))
f_hidden (void)
{
}
void
__attribute__ ((visibility ("internal")))
f_internal (void)
{
}
void
__attribute__ ((visibility ("protected")))
f_protected (void)
{
}
void
__attribute__ ((visibility ("default")))
f_default (void)
{
}
int main (int argc, char **argv)
{
f_hidden();
f_internal();
f_protected();
f_default();
return 0;
}
],g_have_gnuc_visibility=yes,g_have_gnuc_visibility=no)
AC_MSG_RESULT($g_have_gnuc_visibility)
AM_CONDITIONAL(HAVE_GNUC_VISIBILITY, [test x$g_have_gnuc_visibility = xyes])
AC_MSG_CHECKING([whether using Sun Studio C compiler])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#if defined(__SUNPRO_C) || (__SUNPRO_C >= 0x550)
#else
# include "error: this is not Sun Studio."
#endif
]], [[]])], [ g_have_sunstudio_visibility=yes ], [ g_have_sunstudio_visibility=no ])
AC_MSG_RESULT($g_have_sunstudio_visibility)
AM_CONDITIONAL(HAVE_SUNSTUDIO_VISIBILITY, [test x$g_have_sunstudio_visibility = xyes])
# check for bytesex stuff
AC_C_BIGENDIAN
if test x$ac_cv_c_bigendian = xuniversal ; then
AC_TRY_COMPILE([#include <endian.h>], [#if __BYTE_ORDER == __BIG_ENDIAN
#else
#error Not a big endian.
#endif],
ac_cv_c_bigendian=yes
,AC_TRY_COMPILE([#include <endian.h>], [#if __BYTE_ORDER == __LITTLE_ENDIAN
#else
#error Not a little endian.
#endif],
ac_cv_c_bigendian=no
,AC_MSG_WARN([Could not determine endianness.])))
fi
# check for header files
AC_CHECK_HEADERS([dirent.h float.h limits.h pwd.h grp.h sys/param.h sys/poll.h sys/resource.h])
AC_CHECK_HEADERS([sys/time.h sys/times.h sys/wait.h unistd.h values.h])
AC_CHECK_HEADERS([sys/select.h sys/types.h stdint.h sched.h malloc.h])
AC_CHECK_HEADERS([sys/vfs.h sys/mount.h sys/vmount.h sys/statfs.h sys/statvfs.h])
AC_CHECK_HEADERS([mntent.h sys/mnttab.h sys/vfstab.h sys/mntctl.h sys/sysctl.h fstab.h])
# check for structure fields
AC_CHECK_MEMBERS([struct stat.st_mtimensec, struct stat.st_mtim.tv_nsec, struct stat.st_atimensec, struct stat.st_atim.tv_nsec, struct stat.st_ctimensec, struct stat.st_ctim.tv_nsec])
AC_CHECK_MEMBERS([struct stat.st_blksize, struct stat.st_blocks, struct statfs.f_fstypename, struct statfs.f_bavail],,, [#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#ifdef HAVE_SYS_STATFS_H
#include <sys/statfs.h>
#endif
#ifdef HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif
#ifdef HAVE_SYS_MOUNT_H
#include <sys/mount.h>
#endif])
# struct statvfs.f_basetype is available on Solaris but not for Linux.
AC_CHECK_MEMBERS([struct statvfs.f_basetype],,, [#include <sys/statvfs.h>])
# Checks for libcharset
AM_LANGINFO_CODESET
gl_GLIBC21
AC_CHECK_HEADERS([stddef.h stdlib.h string.h])
AC_CHECK_FUNCS(setlocale)
# check additional type sizes
AC_CHECK_SIZEOF(size_t)
dnl Try to figure out whether gsize, gssize should be long or int
AC_MSG_CHECKING([for the appropriate definition for size_t])
case $ac_cv_sizeof_size_t in
$ac_cv_sizeof_short)
glib_size_type=short
;;
$ac_cv_sizeof_int)
glib_size_type=int
;;
$ac_cv_sizeof_long)
glib_size_type=long
;;
$ac_cv_sizeof_long_long)
glib_size_type='long long'
;;
$ac_cv_sizeof__int64)
glib_size_type='__int64'
;;
*) AC_MSG_ERROR([No type matching size_t in size])
;;
esac
dnl If int/long are the same size, we see which one produces
dnl warnings when used in the location as size_t. (This matters
dnl on AIX with xlc)
dnl
if test $ac_cv_sizeof_size_t = $ac_cv_sizeof_int &&
test $ac_cv_sizeof_size_t = $ac_cv_sizeof_long ; then
GLIB_CHECK_COMPILE_WARNINGS([
#if defined(_AIX) && !defined(__GNUC__)
#pragma options langlvl=stdc89
#endif
#include <stddef.h>
int main ()
{
size_t s = 1;
unsigned int *size_int = &s;
return (int)*size_int;
}
],glib_size_type=int,
[GLIB_CHECK_COMPILE_WARNINGS([
#if defined(_AIX) && !defined(__GNUC__)
#pragma options langlvl=stdc89
#endif
#include <stddef.h>
int main ()
{
size_t s = 1;
unsigned long *size_long = &s;
return (int)*size_long;
}
],glib_size_type=long)])
fi
AC_MSG_RESULT(unsigned $glib_size_type)
# Check for some functions
AC_CHECK_FUNCS(lstat strerror strsignal memmove vsnprintf stpcpy strcasecmp strncasecmp poll getcwd vasprintf setenv unsetenv getc_unlocked readlink symlink fdwalk)
AC_CHECK_FUNCS(chown lchown fchmod fchown link statvfs statfs utimes getgrgid getpwuid)
AC_CHECK_FUNCS(getmntent_r setmntent endmntent hasmntopt getmntinfo)
# Check for high-resolution sleep functions
AC_CHECK_FUNCS(nanosleep nsleep)
AC_CHECK_HEADERS(crt_externs.h)
AC_CHECK_FUNCS(_NSGetEnviron)
AC_FUNC_VSNPRINTF_C99
AC_FUNC_PRINTF_UNIX98
dnl
dnl if statfs() takes 2 arguments (Posix) or 4 (Solaris)
dnl
if test "$ac_cv_func_statfs" = yes ; then
AC_MSG_CHECKING([number of arguments to statfs()])
AC_TRY_COMPILE([#include <unistd.h>
#ifdef HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif
#ifdef HAVE_SYS_VFS_H
#include <sys/vfs.h>
#endif
#ifdef HAVE_SYS_MOUNT_H
#include <sys/mount.h>
#endif
#ifdef HAVE_SYS_STATFS_H
#include <sys/statfs.h>
#endif], [struct statfs st;
statfs(NULL, &st);],[
AC_MSG_RESULT([2])
AC_DEFINE(STATFS_ARGS, 2, [Number of arguments to statfs()])],[
AC_TRY_COMPILE([#include <unistd.h>
#ifdef HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif
#ifdef HAVE_SYS_VFS_H
#include <sys/vfs.h>
#endif
#ifdef HAVE_SYS_MOUNT_H
#include <sys/mount.h>
#endif
#ifdef HAVE_SYS_STATFS_H
#include <sys/statfs.h>
#endif], [struct statfs st;
statfs(NULL, &st, sizeof (st), 0);],[
AC_MSG_RESULT([4])
AC_DEFINE(STATFS_ARGS, 4, [Number of arguments to statfs()])],[
AC_MSG_RESULT(unknown)
AC_MSG_ERROR([unable to determine number of arguments to statfs()])])])
fi
#
# Check whether to use an included printf
#