configure.in 44.8 KB
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dnl ***********************************
dnl *** include special GLib macros ***
dnl ***********************************
builtin(include, acglib.m4)dnl

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# require autoconf 2.13
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AC_PREREQ(2.13)
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# Process this file with autoconf to produce a configure script.
AC_INIT(glist.c)

# Save this value here, since automake will set cflags later
cflags_set=${CFLAGS+set}

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# we rewrite this file
rm -f glibconfig-sysdefs.h

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GLIB_DIVERT_BEFORE_HELP([
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#
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# The following version number definitions apply to GLib, GModule, GObject and GThread
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# as a whole, so if changes occoured in any of them, they are all
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# treated with the same interface and binary age.
#
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# 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,
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# set GLIB_BINARY_AGE _and_ GLIB_INTERFACE_AGE to 0.
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#
GLIB_MAJOR_VERSION=1
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GLIB_MINOR_VERSION=3
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GLIB_MICRO_VERSION=1
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GLIB_INTERFACE_AGE=0
GLIB_BINARY_AGE=0
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GLIB_VERSION=$GLIB_MAJOR_VERSION.$GLIB_MINOR_VERSION.$GLIB_MICRO_VERSION
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])dnl
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AC_SUBST(GLIB_MAJOR_VERSION)
AC_SUBST(GLIB_MINOR_VERSION)
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AC_SUBST(GLIB_MICRO_VERSION)
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AC_SUBST(GLIB_VERSION)
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AC_SUBST(GLIB_INTERFACE_AGE)
AC_SUBST(GLIB_BINARY_AGE)
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# libtool versioning
LT_RELEASE=$GLIB_MAJOR_VERSION.$GLIB_MINOR_VERSION
LT_CURRENT=`expr $GLIB_MICRO_VERSION - $GLIB_INTERFACE_AGE`
LT_REVISION=$GLIB_INTERFACE_AGE
LT_AGE=`expr $GLIB_BINARY_AGE - $GLIB_INTERFACE_AGE`
AC_SUBST(LT_RELEASE)
AC_SUBST(LT_CURRENT)
AC_SUBST(LT_REVISION)
AC_SUBST(LT_AGE)

VERSION=$GLIB_VERSION
PACKAGE=glib

AM_INIT_AUTOMAKE($PACKAGE, $VERSION, no-define)

# Specify a configuration file
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AM_CONFIG_HEADER(config.h)
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AC_DEFINE_UNQUOTED(GLIB_MAJOR_VERSION, $GLIB_MAJOR_VERSION,
		   [Define to the GLIB major version])
AC_DEFINE_UNQUOTED(GLIB_MINOR_VERSION, $GLIB_MINOR_VERSION,
		   [Define to the GLIB minor version])
AC_DEFINE_UNQUOTED(GLIB_MICRO_VERSION, $GLIB_MICRO_VERSION,
		   [Define to the GLIB micro version])
AC_DEFINE_UNQUOTED(GLIB_INTERFACE_AGE, $GLIB_INTERFACE_AGE,
		   [Define to the GLIB interface age])
AC_DEFINE_UNQUOTED(GLIB_BINARY_AGE, $GLIB_BINARY_AGE,
		   [Define to the GLIB binary age])
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dnl Initialize maintainer mode
AM_MAINTAINER_MODE

AC_CANONICAL_HOST

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AC_MSG_CHECKING(for the BeOS)
case $host in
  *-*-beos*)
    glib_native_beos="yes"
    ;;
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  *)
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    glib_native_beos="no"
    ;;
esac
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AC_MSG_RESULT([$glib_native_beos])
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dnl
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GLIB_DIVERT_BEFORE_HELP([
# figure debugging default, prior to $ac_help setup
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if test `expr $GLIB_MINOR_VERSION \% 2` = 1 ; then
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  debug_default=yes
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else
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  debug_default=minimum
fi[]dnl
])
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dnl declare --enable-* args and collect ac_help strings
AC_ARG_ENABLE(debug, [  --enable-debug=[no/minimum/yes] turn on debugging [default=$debug_default]],,enable_debug=$debug_default)
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AC_ARG_ENABLE(msg-prefix, [  --enable-msg-prefix     turn on program name and PID prefixing of messages and warnings],,enable_msg_prefix=no)
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AC_ARG_ENABLE(mem_check, [  --enable-mem-check      turn on malloc/free sanity checking [default=no]],,enable_mem_check=no)
AC_ARG_ENABLE(mem_profile, [  --enable-mem-profile    turn on malloc profiling atexit [default=no]],,enable_mem_profile=no)
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AC_ARG_ENABLE(gc_friendly, [  --enable-gc-friendly    turn on garbage collector friendliness [default=no]],,enable_gc_friendly=no)
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AC_ARG_ENABLE(ansi, [  --enable-ansi           turn on strict ansi [default=no]],
		    , enable_ansi=no)
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AC_ARG_ENABLE(threads, [  --enable-threads        turn on basic thread support [default=yes]
                          ([=no] will override --with-threads)],,enable_threads=yes)

if test "x$enable_threads" != "xyes"; then
  enable_threads=no
fi
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AC_MSG_CHECKING(whether to enable memory checking)
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if test "x$enable_mem_check" = "xyes"; then
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  AC_DEFINE(ENABLE_MEM_CHECK, 1, [Whether to enable memory checking])
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  AC_SUBST(ENABLE_MEM_CHECK)
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  AC_MSG_RESULT(yes)
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else
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  AC_MSG_RESULT(no)
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fi

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AC_MSG_CHECKING(whether to enable memory profiling)
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if test "x$enable_mem_profile" = "xyes"; then
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  AC_DEFINE(ENABLE_MEM_PROFILE, 1, [Whether to enable memory profiling])
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  AC_SUBST(ENABLE_MEM_PROFILE)
  AC_MSG_RESULT(yes)
else
  AC_MSG_RESULT(no)
fi
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AC_MSG_CHECKING(whether to enable garbage collector friendliness)
if test "x$enable_gc_friendly" = "xyes"; then
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  AC_DEFINE(ENABLE_GC_FRIENDLY, 1, [Whether to enable GC friendliness])
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  AC_SUBST(ENABLE_GC_FRIENDLY)
  AC_MSG_RESULT(yes)
else
  AC_MSG_RESULT(no)
fi
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if test "x$enable_debug" = "xyes"; then
  test "$cflags_set" = set || CFLAGS="$CFLAGS -g"
  GLIB_DEBUG_FLAGS="-DG_ENABLE_DEBUG"
else
  if test "x$enable_debug" = "xno"; then
    GLIB_DEBUG_FLAGS="-DG_DISABLE_ASSERT -DG_DISABLE_CHECKS"
  fi
fi

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AC_DEFINE_UNQUOTED(G_COMPILED_WITH_DEBUGGING, "${enable_debug}",
	[Whether glib was compiled with debugging enabled])
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if test "x$enable_msg_prefix" = "xyes"; then
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  AC_DEFINE_UNQUOTED(G_ENABLE_MSG_PREFIX, 1, 
		     [Enable prefixing of error messages with program names])
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fi

# Checks for programs.
AC_PROG_CC
AM_PROG_CC_STDC
AC_PROG_INSTALL

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dnl Initialize libtool
AM_PROG_LIBTOOL

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if test "x$GCC" = "xyes"; then
  case " $CFLAGS " in
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  *[[\ \	]]-Wall[[\ \	]]*) ;;
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  *) CFLAGS="$CFLAGS -Wall" ;;
  esac

  if test "x$enable_ansi" = "xyes"; then
    case " $CFLAGS " in
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    *[[\ \	]]-ansi[[\ \	]]*) ;;
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    *) CFLAGS="$CFLAGS -ansi" ;;
    esac

    case " $CFLAGS " in
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    *[[\ \	]]-pedantic[[\ \	]]*) ;;
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    *) CFLAGS="$CFLAGS -pedantic" ;;
    esac
  fi
fi

dnl DU4 native cc currently needs -std1 for ANSI mode (instead of K&R)
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

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

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AC_FUNC_ALLOCA

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AC_CHECK_FUNCS(atexit on_exit)

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)

if test x$ac_cv_sizeof_long_long = x8; then
	# long long is a 64 bit integer.
	AC_MSG_CHECKING(for format to printf and scanf a gint64)
	AC_CACHE_VAL(glib_cv_long_long_format,[
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		for format in ll q; do
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		  AC_TRY_RUN([#include <stdio.h>  
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			int main()
			{
			  long long b, a = -0x3AFAFAFAFAFAFAFALL;
			  char buffer[1000];
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			  sprintf (buffer, "%${format}u", a);
  			  sscanf (buffer, "%${format}u", &b);
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			  exit (b!=a);
			}
			],
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			glib_cv_long_long_format=${format}
			break)
		done])
	if test -n "$glib_cv_long_long_format"; then
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	  AC_MSG_RESULT(%${glib_cv_long_long_format}i)
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        else
	  AC_MSG_RESULT(none)
        fi
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fi

dnl long doubles were not used, and a portability problem
dnl AC_C_LONG_DOUBLE
AC_C_CONST

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.
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AC_CACHE_CHECK([for __inline],glib_cv_has__inline,[
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        AC_TRY_RUN([
	__inline int foo () { return 0; }
	int main () { return foo (); }
       	],
	glib_cv_has__inline=yes
        ,
	glib_cv_has__inline=no
        ,)
])
case x$glib_cv_has__inline in
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xyes) AC_DEFINE(G_HAVE___INLINE,1,[Have __inline keyword])
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esac
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AC_CACHE_CHECK([for __inline__],glib_cv_has__inline__,[
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        AC_TRY_RUN([
	__inline__ int foo () { return 0; }
	int main () { return foo (); }
       	],
	glib_cv_has__inline__=yes
        ,
	glib_cv_has__inline__=no
        ,)
])
case x$glib_cv_has__inline__ in
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xyes) AC_DEFINE(G_HAVE___INLINE__,1,[Have __inline__ keyword])
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esac
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AC_CACHE_CHECK([for inline], glib_cv_hasinline,[
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        AC_TRY_RUN([
	inline int foo () { return 0; }
	int main () { return foo (); }
       	],
	glib_cv_hasinline=yes
        ,
	glib_cv_hasinline=no
        ,)
])
case x$glib_cv_hasinline in
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xyes) AC_DEFINE(G_HAVE_INLINE,1,[Have inline keyword])
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esac

# check for bytesex stuff
AC_C_BIGENDIAN

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# check for header files
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AC_CHECK_HEADERS([float.h limits.h pwd.h sys/param.h sys/poll.h sys/select.h])
AC_CHECK_HEADERS([sys/time.h sys/times.h unistd.h values.h stdint.h])
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AC_MSG_CHECKING(whether make is GNU Make)
STRIP_BEGIN=
STRIP_END=
if $ac_make --version 2>/dev/null | grep '^GNU Make ' >/dev/null ; then
        STRIP_BEGIN='$(strip $(STRIP_DUMMY)'
        STRIP_END=')'
        AC_MSG_RESULT(yes)
else
        AC_MSG_RESULT(no)
fi
STRIP_DUMMY=
AC_SUBST(STRIP_DUMMY)
AC_SUBST(STRIP_BEGIN)
AC_SUBST(STRIP_END)

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# check additional type sizes
size_includes=["
#include <stdarg.h>
#include <stdio.h>
#include <ctype.h>
#include <string.h>
"]
if test "x$ac_cv_header_stdint_h" = "xyes"; then
  size_includes=["$size_includes
#include <stdint.h>
"]
fi
if test "x$ac_cv_header_unistd_h" = "xyes"; then
  size_includes=["$size_includes
#include <unistd.h>
"]
fi
GLIB_SIZEOF([$size_includes], size_t, size_t)
GLIB_SIZEOF([$size_includes], ptrdiff_t, ptrdiff_t)
GLIB_SIZEOF([$size_includes], intmax_t, intmax_t)

# Check for some functions
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AC_CHECK_FUNCS(lstat strerror strsignal memmove vsnprintf strcasecmp strncasecmp poll getcwd)
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# Check if bcopy can be used for overlapping copies, if memmove isn't found.
# The check is borrowed from the PERL Configure script.
if test "$ac_cv_func_memmove" != "yes"; then
  AC_CACHE_CHECK(whether bcopy can handle overlapping copies,
    glib_cv_working_bcopy,[AC_TRY_RUN([
      int main() {
        char buf[128], abc[128], *b;
        int len, off, align;
        bcopy("abcdefghijklmnopqrstuvwxyz0123456789", abc, 36);
        for (align = 7; align >= 0; align--) {
          for (len = 36; len; len--) {
            b = buf+align; bcopy(abc, b, len);
            for (off = 1; off <= len; off++) {
              bcopy(b, b+off, len); bcopy(b+off, b, len);
                if (bcmp(b, abc, len)) return(1);
            }
          }
        }
        return(0);
      }],glib_cv_working_bcopy=yes,glib_cv_working_bcopy=no)])
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  if test "$glib_cv_working_bcopy" = "yes"; then
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    AC_DEFINE(HAVE_WORKING_BCOPY,1,[Have a working bcopy])
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  fi
fi

# Check for sys_errlist
AC_MSG_CHECKING(for sys_errlist)
AC_TRY_LINK(, [
extern char *sys_errlist[];
extern int sys_nerr;
sys_errlist[sys_nerr-1][0] = 0;
], glib_ok=yes, glib_ok=no)
AC_MSG_RESULT($glib_ok)
if test $glib_ok = no; then
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    AC_DEFINE(NO_SYS_ERRLIST,1,[global 'sys_errlist' not found])
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fi

# Check for sys_siglist
AC_MSG_CHECKING(for sys_siglist)
AC_TRY_LINK(, [
extern char *sys_siglist[];
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exit (sys_siglist[0]);
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], glib_ok=yes, glib_ok=no)
AC_MSG_RESULT($glib_ok)
if test $glib_ok = no; then
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    AC_DEFINE(NO_SYS_SIGLIST,1,[global 'sys_siglist' not found])
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fi

# Check for sys_siglist decl (see Tue Jan 19 00:44:24 1999 in changelog)
AC_MSG_CHECKING(for sys_siglist declaration)
AC_TRY_COMPILE([#include <signal.h>], [
strlen (sys_siglist[0]);
], glib_ok=yes, glib_ok=no)
AC_MSG_RESULT($glib_ok)
if test $glib_ok = no; then
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    AC_DEFINE(NO_SYS_SIGLIST_DECL,1,[global 'sys_siglist' not declared])
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fi

# Check if <sys/select.h> needs to be included for fd_set
AC_MSG_CHECKING([for fd_set])
AC_TRY_COMPILE([#include <sys/types.h>],
        [fd_set readMask, writeMask;], gtk_ok=yes, gtk_ok=no)
if test $gtk_ok = yes; then
    AC_MSG_RESULT([yes, found in sys/types.h])
else
    AC_HEADER_EGREP(fd_set, sys/select.h, gtk_ok=yes)
    if test $gtk_ok = yes; then
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	# *** FIXME: give it a different name
        AC_DEFINE(HAVE_SYS_SELECT_H,1,[found fd_set in sys/select.h])
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        AC_MSG_RESULT([yes, found in sys/select.h])
    else
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	AC_DEFINE(NO_FD_SET,1,[didn't find fd_set])
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	AC_MSG_RESULT(no)
    fi
fi

dnl *** check for sane realloc() ***
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AC_CACHE_CHECK([whether realloc (NULL,) will work],glib_cv_sane_realloc,[
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        AC_TRY_RUN([
        #include <stdlib.h>
        int main() {
          return realloc (0, sizeof (int)) == 0;
        }],
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        [glib_cv_sane_realloc=yes],
        [glib_cv_sane_realloc=no],
	[])
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])
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if test x$glib_cv_sane_realloc = xyes; then
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  AC_DEFINE(REALLOC_0_WORKS,1,[whether realloc (NULL,) works])
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fi
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dnl Check for nl_langinfo and CODESET

AC_MSG_CHECKING([for nl_langinfo (CODESET)])
AC_TRY_COMPILE([#include <langinfo.h>],
	[char *codeset = nl_langinfo (CODESET);],
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   AC_DEFINE(HAVE_CODESET,1,[Have nl_langinfo (CODESET)])
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   have_codeset=yes,
   have_codeset=no)
AC_MSG_RESULT($have_codeset)
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dnl ****************************************
dnl *** strlcpy/strlcat                  ***
dnl ****************************************
# Check for strlcpy
AC_MSG_CHECKING(for strlcpy/strlcat)
AC_TRY_LINK([#include <stdlib.h>
#include <string.h>], [
char *p = malloc(10);
(void) strlcpy(p, "hi", 10);
(void) strlcat(p, "bye", 10);
], glib_ok=yes, glib_ok=no)
AC_MSG_RESULT($glib_ok)
if test $glib_ok = yes; then
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    AC_DEFINE(HAVE_STRLCPY,1,[Have functions strlcpy and strlcat])
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fi
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dnl **********************
dnl *** va_copy checks ***
dnl **********************
dnl we currently check for all three va_copy possibilities, so we get
dnl all results in config.log for bug reports.
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AC_CACHE_CHECK([for an implementation of va_copy()],glib_cv_va_copy,[
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	AC_TRY_RUN([
	#include <stdarg.h>
	void f (int i, ...) {
	va_list args1, args2;
	va_start (args1, i);
	va_copy (args2, args1);
	if (va_arg (args2, int) != 42 || va_arg (args1, int) != 42)
	  exit (1);
	va_end (args1); va_end (args2);
	}
	int main() {
	  f (0, 42);
	  return 0;
	}],
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	[glib_cv_va_copy=yes],
	[glib_cv_va_copy=no],
	[])
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])
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AC_CACHE_CHECK([for an implementation of __va_copy()],glib_cv___va_copy,[
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	AC_TRY_RUN([
	#include <stdarg.h>
	void f (int i, ...) {
	va_list args1, args2;
	va_start (args1, i);
	__va_copy (args2, args1);
	if (va_arg (args2, int) != 42 || va_arg (args1, int) != 42)
	  exit (1);
	va_end (args1); va_end (args2);
	}
	int main() {
	  f (0, 42);
	  return 0;
	}],
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	[glib_cv___va_copy=yes],
	[glib_cv___va_copy=no],
	[])
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])
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if test "x$glib_cv_va_copy" = "xyes"; then
  g_va_copy_func=va_copy
else if test "x$glib_cv___va_copy" = "xyes"; then
  g_va_copy_func=__va_copy
fi
fi

if test -n "$g_va_copy_func"; then
  AC_DEFINE_UNQUOTED(G_VA_COPY,$g_va_copy_func,[A 'va_copy' style function])
fi

AC_CACHE_CHECK([whether va_lists can be copied by value],glib_cv_va_val_copy,[
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	AC_TRY_RUN([
	#include <stdarg.h>
	void f (int i, ...) {
	va_list args1, args2;
	va_start (args1, i);
	args2 = args1;
	if (va_arg (args2, int) != 42 || va_arg (args1, int) != 42)
	  exit (1);
	va_end (args1); va_end (args2);
	}
	int main() {
	  f (0, 42);
	  return 0;
	}],
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	[glib_cv_va_val_copy=yes],
	[glib_cv_va_val_copy=no],
	[])
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])
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if test "x$glib_cv_va_val_copy" = "xno"; then
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  AC_DEFINE(G_VA_COPY_AS_ARRAY,1, ['va_lists' cannot be copies as values])
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fi

dnl ***********************
dnl *** g_module checks ***
dnl ***********************
G_MODULE_LIBS=
G_MODULE_LIBS_EXTRA=
G_MODULE_PLUGIN_LIBS=
G_MODULE_LDFLAGS=
dnl G_MODULE_IMPL= don't reset, so cmd-line can override
G_MODULE_NEED_USCORE=0
G_MODULE_HAVE_DLERROR=0
dnl *** dlopen() and dlsym() in system libraries
if test -z "$G_MODULE_IMPL"; then
	AC_CHECK_FUNC(dlopen,
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		      [AC_CHECK_FUNC(dlsym,
			             [G_MODULE_IMPL=G_MODULE_IMPL_DL],[])],
		      [])
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fi
dnl *** load_image (BeOS)
if test -z "$G_MODULE_IMPL" -a "x$glib_native_beos" = "xyes"; then
  AC_CHECK_LIB(root, load_image,
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      [G_MODULE_LIBS="-lbe -lroot -lglib"
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      G_MODULE_LIBS_EXTRA="-L\$(top_builddir_full)/.libs"
      G_MODULE_PLUGIN_LIBS="-L\$(top_builddir_full)/gmodule/.libs -lgmodule"
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      G_MODULE_IMPL=G_MODULE_IMPL_BEOS],
      [])
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fi   
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# *** dlopen() and dlsym() in libdl
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if test -z "$G_MODULE_IMPL"; then
	AC_CHECK_LIB(dl, dlopen,
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		     [AC_CHECK_LIB(dl, dlsym,
			           [G_MODULE_LIBS=-ldl
		                   G_MODULE_IMPL=G_MODULE_IMPL_DL],[])],
		     [])
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fi
dnl *** shl_load() in libdld (HP-UX)
if test -z "$G_MODULE_IMPL"; then
        AC_MSG_CHECKING(how to export all symbols)
        SAVED_LDFLAGS=$LDFLAGS
        LDFLAGS="$LDFLAGS -Wl,-E"
        AC_TRY_LINK(,[ return 0; ],
                [ G_MODULE_LDFLAGS="-Wl,-E" ],[
                LDFLAGS="$SAVED_LDFLAGS -bexpall"
                AC_TRY_LINK(,[ return 0; ],
597 598
                        [G_MODULE_LDFLAGS="-bexpall"],
                        [G_MODULE_LDFLAGS="none"])
599 600 601 602 603 604 605
        ])
        LDFLAGS=$SAVED_LDFLAGS
        AC_MSG_RESULT($G_MODULE_LDFLAGS)
        if test "x$G_MODULE_LDFLAGS" = "xnone"; then
                G_MODULE_LDFLAGS=
        fi
	AC_CHECK_LIB(dld, shl_load,
606 607 608
		[G_MODULE_LIBS=-ldld
		G_MODULE_IMPL=G_MODULE_IMPL_DLD],
		[])
609 610 611 612 613 614 615 616 617 618 619 620 621
fi
dnl *** additional checks for G_MODULE_IMPL_DL
if test "$G_MODULE_IMPL" = "G_MODULE_IMPL_DL"; then
	case "$host_os" in
	  linux*)
	    G_MODULE_LDFLAGS='-rdynamic'
	    ;;
	esac
	LIBS_orig="$LIBS"
	LDFLAGS_orig="$LDFLAGS"
	LIBS="$LIBS $G_MODULE_LIBS"
	LDFLAGS="$LDFLAGS $G_MODULE_LDFLAGS"
dnl *** check whether we need preceeding underscores
622 623
	AC_CACHE_CHECK([for preceeding underscore in symbols],
		glib_cv_uscore,[
624 625 626 627 628 629 630 631 632 633 634
		AC_TRY_RUN([
		#include <dlfcn.h>
                int glib_underscore_test (void) { return 42; }
		int main() {
		  void *f1 = (void*)0, *f2 = (void*)0, *handle;
		  handle = dlopen ((void*)0, 0);
		  if (handle) {
		    f1 = dlsym (handle, "glib_underscore_test");
		    f2 = dlsym (handle, "_glib_underscore_test");
		  } return (!f2 || f1);
		}],
635 636 637
			[glib_cv_uscore=yes],
			[glib_cv_uscore=no],
			[])
638 639 640 641 642 643 644 645 646 647 648
		rm -f plugin.c plugin.o plugin.lo
	])
	if test "x$glib_cv_uscore" = "xyes"; then
  		G_MODULE_NEED_USCORE=1
	else
  		G_MODULE_NEED_USCORE=0
	fi

	LDFLAGS="$LDFLAGS_orig"
dnl *** check for having dlerror()
	AC_CHECK_FUNC(dlerror,
649 650
		[G_MODULE_HAVE_DLERROR=1],
		[G_MODULE_HAVE_DLERROR=0])
651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690
	LIBS="$LIBS_orig"
fi
dnl *** done, have e got an implementation?
if test -z "$G_MODULE_IMPL"; then
	G_MODULE_IMPL=0
fi
AC_SUBST(G_MODULE_IMPL)
AC_SUBST(G_MODULE_LIBS)
AC_SUBST(G_MODULE_LIBS_EXTRA)
AC_SUBST(G_MODULE_PLUGIN_LIBS)
AC_SUBST(G_MODULE_LDFLAGS)
AC_SUBST(G_MODULE_HAVE_DLERROR)
AC_SUBST(G_MODULE_NEED_USCORE)
AC_SUBST(GLIB_DEBUG_FLAGS)


dnl ***********************
dnl *** g_thread checks ***
dnl ***********************

AC_ARG_WITH(threads, [  --with-threads=[none/posix/dce/solaris] specify a thread implementation to use],
	if test "x$with_threads" = x; then
		want_threads=yes
	else
		want_threads=$with_threads
	fi,
	want_threads=yes)
if test "x$enable_threads" = "xno"; then
        want_threads=no
fi
if test "x$want_threads" = "xnone"; then
	want_threads=no
fi

dnl error and warning message
dnl *************************

THREAD_NO_IMPLEMENTATION="You do not have any known thread system on your
                computer. GLib will not have a default thread implementation."

691
FLAG_DOES_NOT_WORK="I can't find the MACRO to enable thread safety on your
692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710
                platform (normaly it's "_REENTRANT"). I'll not use any flag on
                compilation now, but then your programs might not work.
                Please provide information on how it is done on your system."

LIBS_NOT_FOUND_1="I can't find the libraries for the thread implementation
		"

LIBS_NOT_FOUND_2=". Please choose another thread implementation or
		provide information on your thread implementation.
		You can also run 'configure --disable-threads' 
		to compile without thread support."

FUNC_NO_GETPWUID_R="the 'g_get_(user_name|real_name|home_dir|tmp_dir)'
		functions will not be MT-safe during their first call because
		there is no working 'getpwuid_r' on your system."

FUNC_NO_LOCALTIME_R="the 'g_date_set_time' function will not be MT-safe
		because there is no 'localtime_r' on your system."

711 712 713 714 715 716 717 718 719 720 721
POSIX_NO_YIELD="I can not find a yield functions for your platform. A rather
		crude surrogate will be used. If you happen to know a 
		yield function for your system, please inform the GLib 
		developers."

POSIX_NO_PRIORITIES="I can not find the minimal and maximal priorities for 
		threads on your system. Thus threads can only have the default 
		priority. If you happen to know these main/max
		priorities, please inform the GLib developers."


722 723 724 725 726 727 728 729 730 731 732 733 734 735
dnl determination of thread implementation
dnl ***************************************

have_threads=none
if test "x$want_threads" = xyes || test "x$want_threads" = xsolaris; then
       	case $host in
               	*-*-solaris*)
              	AC_CHECK_LIB(thread, cond_init, have_threads=solaris)
		;;
	esac
fi
if test "x$want_threads" = xyes || test "x$want_threads" = xposix \
				|| test "x$want_threads" = xdce; then
	# -D_POSIX4A_DRAFT10_SOURCE is for DG/UX
736
	# -U_OSF_SOURCE is for Digital UNIX 4.0d
737 738 739 740
	GTHREAD_COMPILE_IMPL_DEFINES="-D_POSIX4A_DRAFT10_SOURCE -U_OSF_SOURCE"
	glib_save_CPPFLAGS="$CPPFLAGS"
	CPPFLAGS="$CPPFLAGS $GTHREAD_COMPILE_IMPL_DEFINES"
        if test "x$have_threads" = xnone; then
741
                AC_EGREP_HEADER([(^|[^a-zA-Z_])pthread_attr_init[^a-zA-Z_]],
742 743 744 745
			pthread.h,
			have_threads=posix)
        fi
        if test "x$have_threads" = xnone; then
746
                AC_EGREP_HEADER([(^|[^a-zA-Z_])pthread_attr_create[^a-zA-Z_]],
747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762
			pthread.h,
			have_threads=dce)
        fi
	CPPFLAGS="$glib_save_CPPFLAGS"
fi

AC_MSG_CHECKING(for thread implementation)

if test "x$have_threads" = xnone && test "x$want_threads" != xno; then
	AC_MSG_RESULT(none available)
        AC_MSG_WARN($THREAD_NO_IMPLEMENTATION)
else
	AC_MSG_RESULT($have_threads)
fi


763 764
dnl determination of G_THREAD_CFLAGS
dnl ********************************
765 766 767 768 769

G_THREAD_LIBS=
G_THREAD_LIBS_EXTRA=
G_THREAD_CFLAGS=

770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815
if test x"$have_threads" != xnone; then

    G_THREAD_CFLAGS="-D_REENTRANT" # good default guess

    case $host in
	*-aix*)
		G_THREAD_CFLAGS="$G_THREAD_CFLAGS -D_THREAD_SAFE"
		if test x"$GCC" = xyes; then
            	        G_THREAD_CFLAGS="$G_THREAD_CFLAGS -mthreads"
		fi
		;;
	*-freebsd2.2*)
		G_THREAD_CFLAGS="$G_THREAD_CFLAGS -D_THREAD_SAFE"

		# FreeBSD 2.2.x shiped with gcc 2.7.2.x, which doesn't support
		# -mthreads flag.
		;;	
	*-sysv5uw7*)  # UnixWare 7 
           	if test "$GCC" != "yes"; then
               		G_THREAD_CFLAGS="$G_THREAD_CFLAGS -Kthread"
           	else	
			G_THREAD_CFLAGS="$G_THREAD_CFLAGS -pthread"
           	fi	
		;;
    esac

    # if we are not finding the ctime_r function, then we probably are
    # not using the proper multithread flag

    glib_save_CPPFLAGS="$CPPFLAGS"
    CPPFLAGS="$CPPFLAGS $G_THREAD_CFLAGS"

    # Note: Digital UNIX 4.0d #defines ctime_r to _Pctime_r for gcc.
    AC_EGREP_HEADER([[^a-zA-Z_](_P)?ctime_r[^a-zA-Z_]], time.h, ,
    	AC_MSG_WARN($FLAG_DOES_NOT_WORK))

    CPPFLAGS="$glib_save_CPPFLAGS"

    AC_MSG_CHECKING(thread related cflags)
    AC_MSG_RESULT($G_THREAD_CFLAGS)
    CFLAGS="$CFLAGS $G_THREAD_CFLAGS"
fi

dnl determination of G_THREAD_LIBS
dnl ******************************

816 817 818
mutex_has_default=no
case $have_threads in
        posix|dce)
819 820 821 822 823 824 825 826 827 828 829
	   G_THREAD_LIBS=error
	   glib_save_LIBS="$LIBS"
    	   case $host in
	     *-sysv5uw7*) # UnixWare 7 
           	if test "$GCC" != "yes"; then
               		G_THREAD_LIBS="-Kthread"
           	else	
			G_THREAD_LIBS="-pthread"
           	fi	
		;;
             *)
830 831 832 833 834 835 836 837
		for thread_lib in "" pthread pthreads c_r thread dce; do
			if test x"$thread_lib" = x; then
				add_thread_lib=""
				IN=""
			else
				add_thread_lib="-l$thread_lib"
				IN=" in -l$thread_lib"
			fi
838 839 840 841 842
			if test x"$have_threads" = xposix; then
				defattr=NULL
			else
				defattr=pthread_attr_default
			fi
843 844 845
			
			LIBS="$glib_save_LIBS $add_thread_lib"
			
846
			AC_MSG_CHECKING(for pthread_create/pthread_join$IN)
847
			AC_TRY_RUN([#include <pthread.h> 
848 849
				int check_me = 0;
				void* func(void* data) {check_me = 42;}
850 851
                                main()
				{ pthread_t t; 
852 853 854 855
				  void *ret;
				  pthread_create (&t, $defattr, func, NULL);
				  pthread_join (t, &ret);
				  exit (check_me != 42);
856
				}],
857 858 859 860 861
				[AC_MSG_RESULT(yes)
				G_THREAD_LIBS="$add_thread_lib"
				break],
				[AC_MSG_RESULT(no)])
		done
862 863 864
		if test "x$G_THREAD_LIBS" = xerror; then
        	  AC_MSG_ERROR($LIBS_NOT_FOUND_1$have_threads$LIBS_NOT_FOUND_2)
		fi
865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889
		for thread_lib in "" rt; do
			if test x"$thread_lib" = x; then
				add_thread_lib=""
				IN=""
			else
				add_thread_lib="-l$thread_lib"
				IN=" in -l$thread_lib"
			fi
			LIBS="$glib_save_LIBS $add_thread_lib"
			
			AC_MSG_CHECKING(for sched_get_priority_min$IN)
			AC_TRY_RUN([#include <sched.h>
				#include <errno.h>
				int main() {
    				errno = 0;
                                return sched_get_priority_min(SCHED_OTHER)==-1
					&& errno != 0;
				}],
				[AC_MSG_RESULT(yes)
				G_THREAD_LIBS="$G_THREAD_LIBS $add_thread_lib"
				posix_priority_min="sched_get_priority_min(SCHED_OTHER)"
		     		posix_priority_max="sched_get_priority_max(SCHED_OTHER)"
				break],
				[AC_MSG_RESULT(no)])
		done
890
		LIBS="$glib_save_LIBS"
891 892 893 894 895 896 897 898 899 900 901 902 903 904
		;;
           esac 
           mutex_has_default=yes
           mutex_default_type='pthread_mutex_t'
           mutex_default_init='PTHREAD_MUTEX_INITIALIZER'
           mutex_header_file='pthread.h'
	   if test "x$have_threads" = "xposix"; then
	     g_threads_impl="POSIX"
	   else
	     g_threads_impl="DCE"
	     have_threads="posix"
	   fi
	   AC_SUBST(GTHREAD_COMPILE_IMPL_DEFINES)
           ;;
905
        solaris)
906 907 908 909 910 911 912 913
	   G_THREAD_LIBS=error
           AC_CHECK_LIB(thread, cond_init, G_THREAD_LIBS="-lthread")
           mutex_has_default=yes
           mutex_default_type='mutex_t'
	   mutex_default_init="DEFAULTMUTEX"
           mutex_header_file='thread.h'
	   g_threads_impl="SOLARIS"
           ;;
914
        none)
915 916
	   g_threads_impl="NONE"
           ;;
917
        *)
918 919 920
	   g_threads_impl="NONE"
           G_THREAD_LIBS=error
           ;;
921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941
esac

if test "x$G_THREAD_LIBS" = xerror; then
        AC_MSG_ERROR($LIBS_NOT_FOUND_1$have_threads$LIBS_NOT_FOUND_2)
fi

case $host in
  *-*-beos*)
    G_THREAD_LIBS="-lbe -lroot -lglib "
    G_THREAD_LIBS_EXTRA="-L\$(top_builddir_full)/.libs"
    ;;
  *)
    ;;
esac

AC_MSG_CHECKING(thread related libraries)
AC_MSG_RESULT($G_THREAD_LIBS)

dnl check for mt safe function variants and some posix functions
dnl ************************************************************

942
if test x"$have_threads" != xnone; then
943 944 945 946 947 948
	glib_save_LIBS="$LIBS"
	# we are not doing the following for now, as this might require glib 
	# to always be linked with the thread libs on some platforms. 
	# LIBS="$LIBS $G_THREAD_LIBS"
	AC_CHECK_FUNCS(localtime_r)
	if test "$ac_cv_header_pwd_h" = "yes"; then
949
	 	AC_CACHE_CHECK([for getpwuid_r],ac_cv_func_getpwuid_r,
950 951 952 953
			[AC_TRY_RUN([#include <errno.h>
				int main () { char buffer[10000], *pointer; 
				char getpwuid_r (long, void*, void*,
					int, void*);
954
				int error;
955
				errno = 0;
956
				error = getpwuid_r (0, &buffer, &buffer, 
957
					sizeof (buffer), &pointer);
958
				return errno == ENOSYS || error == ENOSYS;}],
959 960 961
				[ac_cv_func_getpwuid_r=yes],
				[ac_cv_func_getpwuid_r=no])])
		if test "$ac_cv_func_getpwuid_r" = yes; then
962
			AC_DEFINE(HAVE_GETPWUID_R,1,[Have function getpwuid_r])
963 964 965 966 967 968
		fi
		if test "$ac_cv_func_getpwuid_r" = "yes"; then
			AC_MSG_CHECKING(whether getpwuid_r is posix like)
			# The signature for the POSIX version is:
			# int getpwuid_r(uid_t, struct passwd *, char *, size_t, struct passwd **)
			AC_TRY_COMPILE([#include <pwd.h>
969 970
				#include <sys/types.h>
				#include <stdlib.h>],
971
				[getpwuid_r((uid_t)0, NULL, NULL, (size_t)0, NULL);],
972 973
				[AC_DEFINE(HAVE_GETPWUID_R_POSIX,1,
				 [Function getpwuid_r has the POSIX signature])
974 975 976 977 978 979
				AC_MSG_RESULT(yes)],
				[AC_MSG_RESULT(no)])
		fi
	fi
	LIBS="$LIBS $G_THREAD_LIBS"
	if test x"$have_threads" = xposix; then
980 981
		glib_save_CPPFLAGS="$CPPFLAGS"
		CPPFLAGS="$CPPFLAGS $GTHREAD_COMPILE_IMPL_DEFINES"
982 983 984 985 986 987 988 989 990
		GLIB_SIZEOF([#include <pthread.h>],
			pthread_t,
			system_thread)
		# This is not AC_CHECK_FUNC to also work with function
		# name mangling in header files.
		AC_MSG_CHECKING(for pthread_attr_setstacksize)
		AC_TRY_LINK([#include <pthread.h>],
			[pthread_attr_t t; pthread_attr_setstacksize(&t,0)],
			[AC_MSG_RESULT(yes)
991 992
			AC_DEFINE(HAVE_PTHREAD_ATTR_SETSTACKSIZE,1,
				  [Have function pthread_attr_setstacksize])],
993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006
			[AC_MSG_RESULT(no)])
		AC_MSG_CHECKING(for minimal/maximal thread priority)
		if test x"$posix_priority_min" = xnone; then
			AC_EGREP_CPP(PX_PRIO_MIN,[#include <pthread.h>
				PX_PRIO_MIN],,[
				posix_priority_min=PX_PRIO_MIN
				posix_priority_max=PX_PRIO_MAX])
		fi
		if test x"$posix_priority_min" = xnone; then
			AC_EGREP_CPP(PRI_OTHER_MIN,[#include <pthread.h>
				PRI_OTHER_MIN],,[
				posix_priority_min=PRI_OTHER_MIN	
				posix_priority_max=PRI_OTHER_MAX])
		fi
1007
		if test x"$posix_priority_min" = x; then
1008 1009
			AC_MSG_RESULT(none found)
			AC_MSG_WARN($POSIX_NO_PRIORITIES)
1010 1011
	                posix_priority_min=-1
			posix_priority_max=-1
1012 1013
		else
			AC_MSG_RESULT($posix_priority_min/$posix_priority_max)
1014 1015
			AC_DEFINE_UNQUOTED(POSIX_MIN_PRIORITY,$posix_priority_min,[Minimum POSIX RT priority])
			AC_DEFINE_UNQUOTED(POSIX_MAX_PRIORITY,$posix_priority_max,[Maximum POSIX RT priority])
1016 1017 1018
		fi
		posix_yield_func=none
		AC_MSG_CHECKING(for posix yield function)
1019
		for yield_func in sched_yield pthread_yield_np pthread_yield \
1020 1021 1022 1023 1024 1025 1026 1027 1028
							thr_yield; do
			AC_TRY_LINK([#include <pthread.h>],
				[$yield_func()],
				[posix_yield_func="$yield_func"
				break])
		done		
		if test x"$posix_yield_func" = xnone; then
			AC_MSG_RESULT(none found)
			AC_MSG_WARN($POSIX_NO_YIELD)
1029
	                posix_yield_func="g_usleep(1000)"
1030 1031 1032 1033
		else
			AC_MSG_RESULT($posix_yield_func)
			posix_yield_func="$posix_yield_func()"
		fi
1034
		AC_DEFINE_UNQUOTED(POSIX_YIELD_FUNC,$posix_yield_func,[The POSIX RT yield function])
1035 1036 1037 1038 1039
		CPPFLAGS="$glib_save_CPPFLAGS"
	else # solaris threads
		GLIB_SIZEOF([#include <thread.h>],
			thread_t,
			system_thread)
1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050
	fi

	LIBS="$glib_save_LIBS"

	# now spit out all the warnings.
	if test "$ac_cv_func_getpwuid_r" != "yes"; then
		AC_MSG_WARN($FUNC_NO_GETPWUID_R)
	fi
	if test "$ac_cv_func_localtime_r" != "yes"; then
		AC_MSG_WARN($FUNC_NO_LOCALTIME_R)
	fi
1051 1052 1053 1054 1055
else 
	# If no thread implementation exists, we will provide enough
	# space for a pointer
	GLIB_SIZEOF(, void*, system_thread)
fi	
1056

1057 1058
AC_DEFINE_UNQUOTED(G_THREAD_SOURCE,"gthread-$have_threads.c",
		   [Source file containing theread implementation])
1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069
AC_SUBST(G_THREAD_CFLAGS)
AC_SUBST(G_THREAD_LIBS)
AC_SUBST(G_THREAD_LIBS_EXTRA)

dnl **********************************************
dnl *** GDefaultMutex setup and initialization ***
dnl **********************************************
dnl
dnl if mutex_has_default = yes, we also got
dnl mutex_default_type, mutex_default_init and mutex_header_file
GLIB_IF_VAR_EQ(mutex_has_default, yes,
1070 1071 1072 1073
	glib_save_CPPFLAGS="$CPPFLAGS"
	glib_save_LIBS="$LIBS"
	LIBS="$LIBS $G_THREAD_LIBS"
	CPPFLAGS="$CPPFLAGS $GTHREAD_COMPILE_IMPL_DEFINES"
1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085
	GLIB_SIZEOF([#include <$mutex_header_file>],
                    $mutex_default_type,
                    gmutex,
                    )
	GLIB_BYTE_CONTENTS([#include <$mutex_header_file>],
			   $mutex_default_type,
			   gmutex,
			   $glib_cv_sizeof_gmutex,
			   $mutex_default_init)
	if test x"$glib_cv_byte_contents_gmutex" = xno; then
		mutex_has_default=no
	fi
1086 1087
	CPPFLAGS="$glib_save_CPPFLAGS"
	LIBS="$glib_save_LIBS"
1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101
	,
)


dnl ****************************************
dnl *** GLib POLL* compatibility defines ***
dnl ****************************************
GLIB_SYSDEFS(
[#include <sys/types.h>
#include <sys/poll.h>],
	POLLIN:1 POLLOUT:4 POLLPRI:2 POLLERR:8 POLLHUP:16 POLLNVAL:32,
	glibconfig-sysdefs.h,
	=)

1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137
dnl **************************
dnl *** Checks for gtk-doc ***
dnl **************************

AC_ARG_WITH(html-dir, [  --with-html-dir=PATH path to installed docs ])

if test "x$with_html_dir" = "x" ; then
  HTML_DIR='${datadir}/gtk-doc/html'
else
  HTML_DIR=$with_html_dir
fi

AC_SUBST(HTML_DIR)


AC_CHECK_PROG(GTKDOC, gtkdoc-mkdb, true, false)
AM_CONDITIONAL(HAVE_GTK_DOC, $GTKDOC)
AC_SUBST(HAVE_GTK_DOC)

AC_CHECK_PROG(DB2HTML, db2html, true, false)
AM_CONDITIONAL(HAVE_DOCBOOK, $DB2HTML)

dnl Let people disable the gtk-doc stuff.
AC_ARG_ENABLE(gtk-doc, [  --enable-gtk-doc  Use gtk-doc to build documentation [default=auto]], enable_gtk_doc="$enableval", enable_gtk_doc=auto)

if test x$enable_gtk_doc = xauto ; then
  if test x$GTKDOC = xtrue ; then
    enable_gtk_doc=yes
  else
    enable_gtk_doc=no 
  fi
fi

dnl NOTE: We need to use a separate automake conditional for this
dnl       to make this work with the tarballs.
AM_CONDITIONAL(ENABLE_GTK_DOC, test x$enable_gtk_doc = xyes)
1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165

dnl ******************************
dnl *** output the whole stuff ***
dnl ******************************

AC_OUTPUT_COMMANDS([

## Generate `glibconfig.h' in two cases
## 1. `config.status' is run either explicitly, or via configure.
##     Esp. not when it is run in `Makefile' to generate makefiles and
##     config.h
## 2. CONFIG_OTHER is set explicitly
##
## Case 1 is difficult.  We know that `automake' sets one of
## CONFIG_FILES or CONFIG_HEADERS to empty.  This heuristic works
## only when AM_CONFIG_HEADER is set, however.

if test -n "${CONFIG_FILES}" && test -n "${CONFIG_HEADERS}"; then
  # Both CONFIG_FILES and CONFIG_HEADERS are non-empty ==> Case 1
  CONFIG_OTHER=${CONFIG_OTHER:-glibconfig.h}
fi
case "$CONFIG_OTHER" in
*glibconfig.h*)
	echo creating glibconfig.h
	outfile=glibconfig.h-tmp
	cat > $outfile <<\_______EOF
/* glibconfig.h
 *
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 * This is a generated file.  Please modify 'configure.in'
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 */

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#ifndef __G_LIBCONFIG_H__
#define __G_LIBCONFIG_H__

#include <gmacros.h>
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_______EOF

	if test x$glib_limits_h = xyes; then
	  echo '#include <limits.h>' >> $outfile
	fi
	if test x$glib_float_h = xyes; then
	  echo '#include <float.h>' >> $outfile
	fi
	if test x$glib_values_h = xyes; then
	  echo '#include <values.h>' >> $outfile
	fi
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	if test "$glib_header_alloca_h" = "yes"; then
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	  echo '#define GLIB_HAVE_ALLOCA_H' >> $outfile
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	fi
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	if test x$glib_sys_poll_h = xyes; then
	  echo '#define GLIB_HAVE_SYS_POLL_H' >> $outfile
	fi

	cat >> $outfile <<_______EOF

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G_BEGIN_DECLS
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#define G_MINFLOAT	$glib_mf
#define G_MAXFLOAT	$glib_Mf
#define G_MINDOUBLE	$glib_md
#define G_MAXDOUBLE	$glib_Md
#define G_MINSHORT	$glib_ms
#define G_MAXSHORT	$glib_Ms
#define G_MAXUSHORT	$glib_Mus
#define G_MININT	$glib_mi
#define G_MAXINT	$glib_Mi
#define G_MAXUINT	$glib_Mui
#define G_MINLONG	$glib_ml
#define G_MAXLONG	$glib_Ml
#define G_MAXULONG	$glib_Mul

_______EOF


	### this should always be true in a modern C/C++ compiler
	cat >>$outfile <<_______EOF
typedef signed char gint8;
typedef unsigned char guint8;
_______EOF


	if test -n "$gint16"; then
	  cat >>$outfile <<_______EOF
typedef signed $gint16 gint16;
typedef unsigned $gint16 guint16;
#define G_GINT16_FORMAT $gint16_format
#define G_GUINT16_FORMAT $guint16_format
_______EOF
	fi


	if test -n "$gint32"; then
	  cat >>$outfile <<_______EOF
typedef signed $gint32 gint32;
typedef unsigned $gint32 guint32;
#define G_GINT32_FORMAT $gint32_format
#define G_GUINT32_FORMAT $guint32_format
_______EOF
	fi


	if test -n "$gint64"; then
	  cat >>$outfile <<_______EOF
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#define G_HAVE_GINT64 1
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${glib_extension}typedef signed $gint64 gint64;
${glib_extension}typedef unsigned $gint64 guint64;

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#define G_GINT64_CONSTANT(val)	$gint64_constant
_______EOF
		if test -n "$gint64_format"; then
	  cat >>$outfile <<_______EOF
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#define G_GINT64_FORMAT $gint64_format
#define G_GUINT64_FORMAT $guint64_format
_______EOF
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		fi
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	fi
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	case x$glib_size_t in
        x2) echo "typedef gint16  gssize;" >> $outfile
            echo "typedef guint16 gsize;"  >> $outfile
            ;;
        x4) echo "typedef gint32  gssize;" >> $outfile
            echo "typedef guint32 gsize;"  >> $outfile
            ;;
        x8) echo "typedef gint64  gssize;" >> $outfile
            echo "typedef guint64 gsize;"  >> $outfile
            ;;
 	*)  echo "#error size of size_t is unknown" >> $outfile
            ;;
        esac
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	if test -z "$glib_unknown_void_p"; then
	  cat >>$outfile <<_______EOF

#define GPOINTER_TO_INT(p)	((gint)  ${glib_gpi_cast} (p))
#define GPOINTER_TO_UINT(p)	((guint) ${glib_gpui_cast} (p))

#define GINT_TO_POINTER(i)	((gpointer) ${glib_gpi_cast} (i))
#define GUINT_TO_POINTER(u)	((gpointer) ${glib_gpui_cast} (u))
_______EOF
	else
	  echo '#error SIZEOF_VOID_P unknown - This should never happen' >>$outfile
	fi



	cat >>$outfile <<_______EOF
$glib_atexit
$glib_memmove
$glib_defines
$glib_os

$glib_vacopy

#ifdef	__cplusplus
#define	G_HAVE_INLINE	1
#else	/* !__cplusplus */
$glib_inline
#endif	/* !__cplusplus */
_______EOF

	echo >>$outfile
	if test x$g_mutex_has_default = xyes; then
		cat >>$outfile <<_______EOF
$g_enable_threads_def G_THREADS_ENABLED
#define G_THREADS_IMPL_$g_threads_impl_def
typedef struct _GStaticMutex GStaticMutex;
struct _GStaticMutex
{
  struct _GMutex *runtime_mutex;
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  struct {
    union {
      char   pad[$g_mutex_sizeof];
      double dummy_double;
      void  *dummy_pointer;
      long   dummy_long;
    } mutex;
    void *debug_info;
  } static_mutex;
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};
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#define	G_STATIC_MUTEX_INIT	{ NULL, { { { $g_mutex_contents} }, NULL } }
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#define	g_static_mutex_get_mutex(mutex) \
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  (g_thread_use_default_impl ? ((GMutex*) &((mutex)->static_mutex)) : \
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   g_static_mutex_get_mutex_impl (&((mutex)->runtime_mutex)))
_______EOF
	else
		cat >>$outfile <<_______EOF
$g_enable_threads_def G_THREADS_ENABLED
#define G_THREADS_IMPL_$g_threads_impl_def
typedef struct _GMutex* GStaticMutex;
#define G_STATIC_MUTEX_INIT NULL
#define g_static_mutex_get_mutex(mutex) (g_static_mutex_get_mutex_impl (mutex))
_______EOF
	fi
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	cat >>$outfile <<_______EOF
/* This represents a system thread as used by the implementation. An
 * alien implementaion, as loaded by g_thread_init can only count on
 * "sizeof (gpointer)" bytes to store their info. We however need more
 * for some of our native implementations. */
typedef union _GSystemThread GSystemThread;
union _GSystemThread
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{
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  char   data[$g_system_thread_sizeof];
  double dummy_double;
  void  *dummy_pointer;
  long   dummy_long;
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};
_______EOF

	echo >>$outfile
	g_bit_sizes="16 32"
	if test -n "$gint64"; then
	  g_bit_sizes="$g_bit_sizes 64"
	fi
	for bits in $g_bit_sizes; do
	  cat >>$outfile <<_______EOF
#define GINT${bits}_TO_${g_bs_native}(val)	((gint${bits}) (val))
#define GUINT${bits}_TO_${g_bs_native}(val)	((guint${bits}) (val))
#define GINT${bits}_TO_${g_bs_alien}(val)	((gint${bits}) GUINT${bits}_SWAP_LE_BE (val))
#define GUINT${bits}_TO_${g_bs_alien}(val)	(GUINT${bits}_SWAP_LE_BE (val))
_______EOF
	done

	cat >>$outfile <<_______EOF
#define GLONG_TO_LE(val)	((glong) GINT${glongbits}_TO_LE (val))
#define GULONG_TO_LE(val)	((gulong) GUINT${glongbits}_TO_LE (val))
#define GLONG_TO_BE(val)	((glong) GINT${glongbits}_TO_BE (val))
#define GULONG_TO_BE(val)	((gulong) GUINT${glongbits}_TO_BE (val))
#define GINT_TO_LE(val)		((gint) GINT${gintbits}_TO_LE (val))
#define GUINT_TO_LE(val)	((guint) GUINT${gintbits}_TO_LE (val))
#define GINT_TO_BE(val)		((gint) GINT${gintbits}_TO_BE (val))
#define GUINT_TO_BE(val)	((guint) GUINT${gintbits}_TO_BE (val))
#define G_BYTE_ORDER $g_byte_order

_______EOF

	if test -r glibconfig-sysdefs.h; then
	  cat glibconfig-sysdefs.h >>$outfile
	fi

	cat >>$outfile <<_______EOF

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G_END_DECLS
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#endif /* GLIBCONFIG_H */
_______EOF


	if cmp -s $outfile glibconfig.h; then
	  echo glibconfig.h is unchanged
	  rm -f $outfile
	else
	  mv $outfile glibconfig.h
	fi ;;
esac
],[

# Note that if two cases are the same, case goes with the first one.
# Note also that this is inside an AC_OUTPUT_COMMAND.  We do not depend
# on variable expansion in case labels.  Look at the generated config.status
# for a hint.

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glib_header_alloca_h="$ac_cv_header_alloca_h"

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case xyes in
x$ac_cv_header_float_h)
  glib_float_h=yes
  glib_mf=FLT_MIN glib_Mf=FLT_MAX
  glib_md=DBL_MIN glib_Md=DBL_MAX
  ;;
x$ac_cv_header_values_h)
  glib_values_h=yes
  glib_mf=MINFLOAT  glib_Mf=MAXFLOAT
  glib_md=MINDOUBLE glib_Md=MAXDOUBLE
  ;;
esac

case xyes in
x$ac_cv_header_limits_h)
  glib_limits_h=yes
  glib_ms=SHRT_MIN glib_Ms=SHRT_MAX glib_Mus=USHRT_MAX
  glib_mi=INT_MIN  glib_Mi=INT_MAX  glib_Mui=UINT_MAX
  glib_ml=LONG_MIN glib_Ml=LONG_MAX glib_Mul=ULONG_MAX
  ;;
x$ac_cv_header_values_h)
  glib_values_h=yes
  glib_ms=MINSHORT glib_Ms=MAXSHORT glib_Mus="(((gushort)G_MAXSHORT)*2+1)"
  glib_mi=MININT   glib_Mi=MAXINT   glib_Mui="(((guint)G_MAXINT)*2+1)"
  glib_ml=MINLONG  glib_Ml=MAXLONG  glib_Mul="(((gulong)G_MAXLONG)*2+1)"
  ;;
esac

if test x$ac_cv_header_sys_poll_h = xyes ; then
  glib_sys_poll_h=yes
fi

case 2 in
$ac_cv_sizeof_short)		
  gint16=short
  gint16_format='"hi"'
  guint16_format='"hu"'
  ;;
$ac_cv_sizeof_int)		
  gint16=int
  gint16_format='"i"'
  guint16_format='"u"'
  ;;
esac
case 4 in
$ac_cv_sizeof_short)		
  gint32=short
  gint32_format='"hi"'
  guint32_format='"hu"'
  ;;
$ac_cv_sizeof_int)		
  gint32=int
  gint32_format='"i"'
  guint32_format='"u"'
  ;;
$ac_cv_sizeof_long)		
  gint32=long
  gint32_format='"li"'
  guint32_format='"lu"'
  ;;
esac
case 8 in
$ac_cv_sizeof_int)
  gint64=int
  gint64_format='"i"'
  guint64_format='"u"'
  glib_extension=
  gint64_constant='(val)'
  ;;
$ac_cv_sizeof_long)
  gint64=long
  gint64_format='"li"'
  guint64_format='"lu"'
  glib_extension=
  gint64_constant='(val##L)'
  ;;
$ac_cv_sizeof_long_long)
  gint64='long long'
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  if test -n "$glib_cv_long_long_format"; then
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    gint64_format='"'$glib_cv_long_long_format'i"'
    guint64_format='"'$glib_cv_long_long_format'u"'
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  fi
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  glib_extension='G_GNUC_EXTENSION '
  gint64_constant='(G_GNUC_EXTENSION (val##LL))'
  ;;
esac
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glib_size_t=$glib_cv_sizeof_size_t
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gintbits=`expr $ac_cv_sizeof_int \* 8`
glongbits=`expr $ac_cv_sizeof_long \* 8`


case $ac_cv_sizeof_void_p in
$ac_cv_sizeof_int)  	glib_gpi_cast=''        glib_gpui_cast=''         ;;
$ac_cv_sizeof_long) 	glib_gpi_cast='(glong)' glib_gpui_cast='(gulong)' ;;
*) 			glib_unknown_void_p=yes ;;
esac


case xyes in
x$ac_cv_func_atexit)
  glib_atexit="
#ifdef NeXT /* @#%@! NeXTStep */
# define g_ATEXIT(proc)	(!atexit (proc))
#else
# define g_ATEXIT(proc)	(atexit (proc))
#endif"
  ;;
x$ac_cv_func_on_exit)
  glib_atexit="
#define g_ATEXIT(proc)	(on_exit ((void (*)(int, void*))(proc), NULL))"
  ;;
esac

case xyes in
x$ac_cv_func_memmove)
  glib_memmove='
#define g_memmove(d,s,n) G_STMT_START { memmove ((d), (s), (n)); } G_STMT_END'
  ;;
x$glib_cv_working_bcopy)
  glib_memmove="
/* memmove isn't available, but bcopy can copy overlapping memory regions */
#define g_memmove(d,s,n) G_STMT_START { bcopy ((s), (d), (n)); } G_STMT_END"
  ;;
*)  
  glib_memmove="
/* memmove isn't found and bcopy can't copy overlapping memory regions, 
 * so we have to roll our own copy routine. */
void g_memmove (void* dest, const void * src, unsigned long len);"
  ;;
esac

glib_defines="
#define GLIB_MAJOR_VERSION $GLIB_MAJOR_VERSION
#define GLIB_MINOR_VERSION $GLIB_MINOR_VERSION
#define GLIB_MICRO_VERSION $GLIB_MICRO_VERSION
"

case xyes in
x$glib_cv_va_copy)	glib_vacopy='#define G_VA_COPY	va_copy' ;;
x$glib_cv___va_copy)	glib_vacopy='#define G_VA_COPY	__va_copy' ;;
*)			glib_vacopy=''
esac

if test x$glib_cv_va_val_copy = xno; then
  glib_vacopy="\$glib_vacopy
#define G_VA_COPY_AS_ARRAY 1"
fi

if test x$glib_cv_hasinline = xyes; then
    glib_inline='#define G_HAVE_INLINE 1'
fi
if test x$glib_cv_has__inline = xyes; then
    glib_inline="\$glib_inline
#define G_HAVE___INLINE 1"
fi
if test x$glib_cv_has__inline__ = xyes; then
    glib_inline="\$glib_inline
#define G_HAVE___INLINE__ 1"
fi

case xyes in
x$ac_cv_c_bigendian)
  g_byte_order=G_BIG_ENDIAN
  g_bs_native=BE
  g_bs_alien=LE
  ;;
*)
  g_byte_order=G_LITTLE_ENDIAN
  g_bs_native=LE
  g_bs_alien=BE
  ;;
esac

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case x$have_threads in
xnone)	g_enable_threads_def="#undef";;
*)	g_enable_threads_def="#define";;
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esac

g_threads_impl_def=$g_threads_impl

g_mutex_has_default="$mutex_has_default"
g_mutex_sizeof="$glib_cv_sizeof_gmutex"
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g_system_thread_sizeof="$glib_cv_sizeof_system_thread"
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g_mutex_contents="$glib_cv_byte_contents_gmutex"

case $host in
  *-*-beos*)
    glib_os="#define G_OS_BEOS"
    ;;
  *-*-cygwin*)
    glib_os="#define G_OS_UNIX
#define G_WITH_CYGWIN"
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v    ;;
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  *)
    glib_os="#define G_OS_UNIX"
    ;;
esac
])

AC_OUTPUT([
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glib-2.0.pc
gmodule-2.0.pc
gthread-2.0.pc
gobject-2.0.pc
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glib.spec
Makefile
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glib-config-2.0
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build/Makefile
build/win32/Makefile
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gmodule/gmoduleconf.h
gmodule/Makefile
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gobject/Makefile
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gthread/Makefile
docs/Makefile
docs/glib-config.1
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docs/reference/Makefile
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docs/reference/glib/Makefile
docs/reference/gobject/Makefile
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tests/Makefile
],[case "$CONFIG_FILES" in
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*glib-config-2.0*)chmod +x glib-config-2.0;;
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esac
echo ""
echo " *** IMPORTANT *** "
echo ""
echo "This is a development version of GLib.  You should be using a stable"
echo "version, which is available at ftp://ftp.gtk.org/pub/gtk/v1.2/.  The"
echo "version you just configured is meant for developers of GLib only:"
echo ""
echo "  * You should not base stable software on this version of GLib."
echo "  * GNOME developers should use a stable version of GLib."
echo ""
echo "If you install this version of GLib, we strongly recommend that you"
echo "install it in a different prefix than GLib 1.2.  Use --prefix as an"
echo "argument to configure to do this.  Otherwise, you will not be able to"
echo "do development with GLib 1.2 any longer."
echo ""
echo " *** You should be using GLib 1.2 instead. ***"
])