glib/configure.in

dnl ***********************************
dnl *** include special GLib macros ***
dnl ***********************************
builtin(include, acglib.m4)dnl

# require autoconf 2.13
AC_PREREQ(2.13)

# 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}

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

GLIB_DIVERT_BEFORE_HELP([
#
# The following version number definitions apply to GLib, GModule, GObject and GThread
# as a whole, so if changes occoured 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.
#
GLIB_MAJOR_VERSION=1
GLIB_MINOR_VERSION=3
GLIB_MICRO_VERSION=1
GLIB_INTERFACE_AGE=0
GLIB_BINARY_AGE=0
GLIB_VERSION=$GLIB_MAJOR_VERSION.$GLIB_MINOR_VERSION.$GLIB_MICRO_VERSION
])dnl

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)

# 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
AM_CONFIG_HEADER(config.h)

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])

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

GLIB_DIVERT_BEFORE_HELP([
# figure debugging default, prior to $ac_help setup
if test `expr $GLIB_MINOR_VERSION \% 2` = 1 ; then
  debug_default=yes
else
  debug_default=minimum
fi[]dnl
])

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)
AC_ARG_ENABLE(msg-prefix, [  --enable-msg-prefix     turn on program name and PID prefixing of messages and warnings],,enable_msg_prefix=no)
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)
AC_ARG_ENABLE(gc_friendly, [  --enable-gc-friendly    turn on garbage collector friendliness [default=no]],,enable_gc_friendly=no)
AC_ARG_ENABLE(ansi, [  --enable-ansi           turn on strict ansi [default=no]],
		    , enable_ansi=no)
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

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

AC_MSG_CHECKING(whether to enable memory profiling)
if test "x$enable_mem_profile" = "xyes"; then
  AC_DEFINE(ENABLE_MEM_PROFILE, 1, [Whether to enable memory profiling])
  AC_SUBST(ENABLE_MEM_PROFILE)
  AC_MSG_RESULT(yes)
else
  AC_MSG_RESULT(no)
fi

AC_MSG_CHECKING(whether to enable garbage collector friendliness)
if test "x$enable_gc_friendly" = "xyes"; then
  AC_DEFINE(ENABLE_GC_FRIENDLY, 1, [Whether to enable GC friendliness])
  AC_SUBST(ENABLE_GC_FRIENDLY)
  AC_MSG_RESULT(yes)
else
  AC_MSG_RESULT(no)
fi

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

AC_DEFINE_UNQUOTED(G_COMPILED_WITH_DEBUGGING, "${enable_debug}",
	[Whether glib was compiled with debugging enabled])

if test "x$enable_msg_prefix" = "xyes"; then
  AC_DEFINE_UNQUOTED(G_ENABLE_MSG_PREFIX, 1, 
		     [Enable prefixing of error messages with program names])
fi

# Checks for programs.
AC_PROG_CC
AM_PROG_CC_STDC
AC_PROG_INSTALL

dnl Initialize libtool
AM_PROG_LIBTOOL

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

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

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

AC_FUNC_ALLOCA

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$ac_cv_sizeof_long_long = x8; then
	# long long is a 64 bit integer.
	AC_MSG_CHECKING(for format to printf and scanf a gint64)
	AC_CACHE_VAL(glib_cv_long_long_format,[
		for format in ll q; do
		  AC_TRY_RUN([#include <stdio.h>  
			int main()
			{
			  long long b, a = -0x3AFAFAFAFAFAFAFALL;
			  char buffer[1000];
			  sprintf (buffer, "%${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}i)
        else
	  AC_MSG_RESULT(none)
        fi
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.
AC_CACHE_CHECK([for __inline],glib_cv_has__inline,[
        AC_TRY_RUN([
	__inline int foo () { return 0; }
	int main () { return foo (); }
       	],
	glib_cv_has__inline=yes
        ,
	glib_cv_has__inline=no
        ,)
])
case x$glib_cv_has__inline in
xyes) AC_DEFINE(G_HAVE___INLINE,1,[Have __inline keyword])
esac
AC_CACHE_CHECK([for __inline__],glib_cv_has__inline__,[
        AC_TRY_RUN([
	__inline__ int foo () { return 0; }
	int main () { return foo (); }
       	],
	glib_cv_has__inline__=yes
        ,
	glib_cv_has__inline__=no
        ,)
])
case x$glib_cv_has__inline__ in
xyes) AC_DEFINE(G_HAVE___INLINE__,1,[Have __inline__ keyword])
esac
AC_CACHE_CHECK([for inline], glib_cv_hasinline,[
        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
xyes) AC_DEFINE(G_HAVE_INLINE,1,[Have inline keyword])
esac

# check for bytesex stuff
AC_C_BIGENDIAN

# check for header files
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])

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)

# 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
AC_CHECK_FUNCS(lstat strerror strsignal memmove vsnprintf strcasecmp strncasecmp poll getcwd)

# 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 "$ac_cv_func_memmove" != "yes"; then
  AC_CACHE_CHECK(whether bcopy can handle overlapping copies,
    glib_cv_working_bcopy,[AC_TRY_RUN([
      int main() {
        char buf[128], abc[128], *b;
        int len, off, align;
        bcopy("abcdefghijklmnopqrstuvwxyz0123456789", abc, 36);
        for (align = 7; align >= 0; align--) {
          for (len = 36; len; len--) {
            b = buf+align; bcopy(abc, b, len);
            for (off = 1; off <= len; off++) {
              bcopy(b, b+off, len); bcopy(b+off, b, len);
                if (bcmp(b, abc, len)) return(1);
            }
          }
        }
        return(0);
      }],glib_cv_working_bcopy=yes,glib_cv_working_bcopy=no)])
  if test "$glib_cv_working_bcopy" == "yes"; then
    AC_DEFINE(HAVE_WORKING_BCOPY,1,[Have a working bcopy])
  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
    AC_DEFINE(NO_SYS_ERRLIST,1,[global 'sys_errlist' not found])
fi

# Check for sys_siglist
AC_MSG_CHECKING(for sys_siglist)
AC_TRY_LINK(, [
extern char *sys_siglist[];
exit (sys_siglist[0]);
], glib_ok=yes, glib_ok=no)
AC_MSG_RESULT($glib_ok)
if test $glib_ok = no; then
    AC_DEFINE(NO_SYS_SIGLIST,1,[global 'sys_siglist' not found])
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
    AC_DEFINE(NO_SYS_SIGLIST_DECL,1,[global 'sys_siglist' not declared])
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
	# *** FIXME: give it a different name
        AC_DEFINE(HAVE_SYS_SELECT_H,1,[found fd_set in sys/select.h])
        AC_MSG_RESULT([yes, found in sys/select.h])
    else
	AC_DEFINE(NO_FD_SET,1,[didn't find fd_set])
	AC_MSG_RESULT(no)
    fi
fi

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

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);],
   AC_DEFINE(HAVE_CODESET,1,[Have nl_langinfo (CODESET)])
   have_codeset=yes,
   have_codeset=no)
AC_MSG_RESULT($have_codeset)


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
    AC_DEFINE(HAVE_STRLCPY,1,[Have functions strlcpy and strlcat])
fi
  

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.
AC_CACHE_CHECK([for an implementation of va_copy()],glib_cv_va_copy,[
	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;
	}],
	[glib_cv_va_copy=yes],
	[glib_cv_va_copy=no],
	[])
])
AC_CACHE_CHECK([for an implementation of __va_copy()],glib_cv___va_copy,[
	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;
	}],
	[glib_cv___va_copy=yes],
	[glib_cv___va_copy=no],
	[])
])

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,[
	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;
	}],
	[glib_cv_va_val_copy=yes],
	[glib_cv_va_val_copy=no],
	[])
])

if test "x$glib_cv_va_val_copy" = "xno"; then
  AC_DEFINE(G_VA_COPY_AS_ARRAY,1, ['va_lists' cannot be copies as values])
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 "$G_MODULE_IMPL"; then
	AC_CHECK_FUNC(dlopen,
		      [AC_CHECK_FUNC(dlsym,
			             [G_MODULE_IMPL=G_MODULE_IMPL_DL],[])],
		      [])
fi
dnl *** load_image (BeOS)
if test -z "$G_MODULE_IMPL" -a "x$glib_native_beos" = "xyes"; then
  AC_CHECK_LIB(root, load_image,
      [G_MODULE_LIBS="-lbe -lroot -lglib"
      G_MODULE_LIBS_EXTRA="-L\$(top_builddir_full)/.libs"
      G_MODULE_PLUGIN_LIBS="-L\$(top_builddir_full)/gmodule/.libs -lgmodule"
      G_MODULE_IMPL=G_MODULE_IMPL_BEOS],
      [])
fi   
# *** dlopen() and dlsym() in libdl
if test -z "$G_MODULE_IMPL"; then
	AC_CHECK_LIB(dl, dlopen,
		     [AC_CHECK_LIB(dl, dlsym,
			           [G_MODULE_LIBS=-ldl
		                   G_MODULE_IMPL=G_MODULE_IMPL_DL],[])],
		     [])
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; ],
                        [G_MODULE_LDFLAGS="-bexpall"],
                        [G_MODULE_LDFLAGS="none"])
        ])
        LDFLAGS=$SAVED_LDFLAGS
        AC_MSG_RESULT($G_MODULE_LDFLAGS)
        if test "x$G_MODULE_LDFLAGS" = "xnone"; then
                G_MODULE_LDFLAGS=
        fi
	AC_CHECK_LIB(dld, shl_load,
		[G_MODULE_LIBS=-ldld
		G_MODULE_IMPL=G_MODULE_IMPL_DLD],
		[])
fi
dnl *** additional checks for G_MODULE_IMPL_DL
if test "$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 $G_MODULE_LDFLAGS"
dnl *** check whether we need preceeding underscores
	AC_CACHE_CHECK([for preceeding underscore in symbols],
		glib_cv_uscore,[
		AC_TRY_RUN([
		#include <dlfcn.h>
                int glib_underscore_test (void) { return 42; }
		int main() {
		  void *f1 = (void*)0, *f2 = (void*)0, *handle;
		  handle = dlopen ((void*)0, 0);
		  if (handle) {
		    f1 = dlsym (handle, "glib_underscore_test");
		    f2 = dlsym (handle, "_glib_underscore_test");
		  } return (!f2 || f1);
		}],
			[glib_cv_uscore=yes],
			[glib_cv_uscore=no],
			[])
		rm -f plugin.c plugin.o plugin.lo
	])
	if test "x$glib_cv_uscore" = "xyes"; then
  		G_MODULE_NEED_USCORE=1
	else
  		G_MODULE_NEED_USCORE=0
	fi

	LDFLAGS="$LDFLAGS_orig"
dnl *** check for having dlerror()
	AC_CHECK_FUNC(dlerror,
		[G_MODULE_HAVE_DLERROR=1],
		[G_MODULE_HAVE_DLERROR=0])
	LIBS="$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."

FLAG_DOES_NOT_WORK="I can't find the MACRO to enable thread safety on your
                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."

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."


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
	# -U_OSF_SOURCE is for Digital UNIX 4.0d
	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
                AC_EGREP_HEADER([(^|[^a-zA-Z_])pthread_attr_init[^a-zA-Z_]],
			pthread.h,
			have_threads=posix)
        fi
        if test "x$have_threads" = xnone; then
                AC_EGREP_HEADER([(^|[^a-zA-Z_])pthread_attr_create[^a-zA-Z_]],
			pthread.h,
			have_threads=dce)
        fi
	CPPFLAGS="$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


dnl determination of G_THREAD_CFLAGS
dnl ********************************

G_THREAD_LIBS=
G_THREAD_LIBS_EXTRA=
G_THREAD_CFLAGS=

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 ******************************

mutex_has_default=no
case $have_threads in
        posix|dce)
	   G_THREAD_LIBS=error
	   glib_save_LIBS="$LIBS"
    	   case $host in
	     *-sysv5uw7*) # UnixWare 7 
           	if test "$GCC" != "yes"; then
               		G_THREAD_LIBS="-Kthread"
           	else	
			G_THREAD_LIBS="-pthread"
           	fi	
		;;
             *)
		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$thread_lib"
			fi
			if test x"$have_threads" = xposix; then
				defattr=NULL
			else
				defattr=pthread_attr_default
			fi
			
			LIBS="$glib_save_LIBS $add_thread_lib"
			
			AC_MSG_CHECKING(for pthread_create/pthread_join$IN)
			AC_TRY_RUN([#include <pthread.h> 
				int check_me = 0;
				void* func(void* data) {check_me = 42;}
                                main()
				{ pthread_t t; 
				  void *ret;
				  pthread_create (&t, $defattr, func, NULL);
				  pthread_join (t, &ret);
				  exit (check_me != 42);
				}],
				[AC_MSG_RESULT(yes)
				G_THREAD_LIBS="$add_thread_lib"
				break],
				[AC_MSG_RESULT(no)])
		done
		if test "x$G_THREAD_LIBS" = xerror; then
        	  AC_MSG_ERROR($LIBS_NOT_FOUND_1$have_threads$LIBS_NOT_FOUND_2)
		fi
		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 $add_thread_lib"
				posix_priority_min="sched_get_priority_min(SCHED_OTHER)"
		     		posix_priority_max="sched_get_priority_max(SCHED_OTHER)"
				break],
				[AC_MSG_RESULT(no)])
		done
		LIBS="$glib_save_LIBS"
		;;
           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)
           ;;
        solaris)
	   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"
           ;;
        none)
	   g_threads_impl="NONE"
           ;;
        *)
	   g_threads_impl="NONE"
           G_THREAD_LIBS=error
           ;;
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 ************************************************************

if test x"$have_threads" != xnone; then
	glib_save_LIBS="$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
	 	AC_CACHE_CHECK([for getpwuid_r],ac_cv_func_getpwuid_r,
			[AC_TRY_RUN([#include <errno.h>
				int main () { char buffer[10000], *pointer; 
				char getpwuid_r (long, void*, void*,
					int, void*);
				int error;
				errno = 0;
				error = getpwuid_r (0, &buffer, &buffer, 
					sizeof (buffer), &pointer);
				return errno == ENOSYS || error == ENOSYS;}],
				[ac_cv_func_getpwuid_r=yes],
				[ac_cv_func_getpwuid_r=no])])
		if test "$ac_cv_func_getpwuid_r" = yes; then
			AC_DEFINE(HAVE_GETPWUID_R,1,[Have function getpwuid_r])
		fi
		if test "$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>
				#include <sys/types.h>
				#include <stdlib.h>],
				[getpwuid_r((uid_t)0, NULL, NULL, (size_t)0, NULL);],
				[AC_DEFINE(HAVE_GETPWUID_R_POSIX,1,
				 [Function getpwuid_r has the POSIX signature])
				AC_MSG_RESULT(yes)],
				[AC_MSG_RESULT(no)])
		fi
	fi
	LIBS="$LIBS $G_THREAD_LIBS"
	if test x"$have_threads" = xposix; then
		glib_save_CPPFLAGS="$CPPFLAGS"
		CPPFLAGS="$CPPFLAGS $GTHREAD_COMPILE_IMPL_DEFINES"
		GLIB_SIZEOF([#include <pthread.h>],
			pthread_t,
			system_thread)
		# This is not AC_CHECK_FUNC to also work with function
		# name mangling in header files.
		AC_MSG_CHECKING(for pthread_attr_setstacksize)
		AC_TRY_LINK([#include <pthread.h>],
			[pthread_attr_t t; pthread_attr_setstacksize(&t,0)],
			[AC_MSG_RESULT(yes)
			AC_DEFINE(HAVE_PTHREAD_ATTR_SETSTACKSIZE,1,
				  [Have function pthread_attr_setstacksize])],
			[AC_MSG_RESULT(no)])
		AC_MSG_CHECKING(for minimal/maximal thread priority)
		if test x"$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"$posix_priority_min" = xnone; then
			AC_EGREP_CPP(PRI_OTHER_MIN,[#include <pthread.h>
				PRI_OTHER_MIN],,[
				posix_priority_min=PRI_OTHER_MIN	
				posix_priority_max=PRI_OTHER_MAX])
		fi
		if test x"$posix_priority_min" = x; then
			AC_MSG_RESULT(none found)
			AC_MSG_WARN($POSIX_NO_PRIORITIES)
	                posix_priority_min=-1
			posix_priority_max=-1
		else
			AC_MSG_RESULT($posix_priority_min/$posix_priority_max)
			AC_DEFINE_UNQUOTED(POSIX_MIN_PRIORITY,$posix_priority_min,[Minimum POSIX RT priority])
			AC_DEFINE_UNQUOTED(POSIX_MAX_PRIORITY,$posix_priority_max,[Maximum POSIX RT priority])
		fi
		posix_yield_func=none
		AC_MSG_CHECKING(for posix yield function)
		for yield_func in sched_yield pthread_yield_np pthread_yield \
							thr_yield; do
			AC_TRY_LINK([#include <pthread.h>],
				[$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($POSIX_NO_YIELD)
	                posix_yield_func="g_usleep(1000)"
		else
			AC_MSG_RESULT($posix_yield_func)
			posix_yield_func="$posix_yield_func()"
		fi
		AC_DEFINE_UNQUOTED(POSIX_YIELD_FUNC,$posix_yield_func,[The POSIX RT yield function])
		CPPFLAGS="$glib_save_CPPFLAGS"
	else # solaris threads
		GLIB_SIZEOF([#include <thread.h>],
			thread_t,
			system_thread)
	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
else 
	# If no thread implementation exists, we will provide enough
	# space for a pointer
	GLIB_SIZEOF(, void*, system_thread)
fi	

AC_DEFINE_UNQUOTED(G_THREAD_SOURCE,"gthread-$have_threads.c",
		   [Source file containing theread implementation])
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,
	glib_save_CPPFLAGS="$CPPFLAGS"
	glib_save_LIBS="$LIBS"
	LIBS="$LIBS $G_THREAD_LIBS"
	CPPFLAGS="$CPPFLAGS $GTHREAD_COMPILE_IMPL_DEFINES"
	GLIB_SIZEOF([#include <$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
	CPPFLAGS="$glib_save_CPPFLAGS"
	LIBS="$glib_save_LIBS"
	,
)


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,
	=)

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)

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
 *
 * This is a generated file.  Please modify 'configure.in'
 */

#ifndef __G_LIBCONFIG_H__
#define __G_LIBCONFIG_H__

#include <gmacros.h>

_______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>' >> $outfile
	fi
	if test "$glib_header_alloca_h" = "yes"; then
	  echo '#define GLIB_HAVE_ALLOCA_H' >> $outfile
	fi
	if test x$glib_sys_poll_h = xyes; then
	  echo '#define GLIB_HAVE_SYS_POLL_H' >> $outfile
	fi

	cat >> $outfile <<_______EOF

G_BEGIN_DECLS

#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
#define G_HAVE_GINT64 1

${glib_extension}typedef signed $gint64 gint64;
${glib_extension}typedef unsigned $gint64 guint64;

#define G_GINT64_CONSTANT(val)	$gint64_constant
_______EOF
		if test -n "$gint64_format"; then
	  cat >>$outfile <<_______EOF
#define G_GINT64_FORMAT $gint64_format
#define G_GUINT64_FORMAT $guint64_format
_______EOF
		fi
	fi

	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

	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;
  struct {
    union {
      char   pad[$g_mutex_sizeof];
      double dummy_double;
      void  *dummy_pointer;
      long   dummy_long;
    } mutex;
    void *debug_info;
  } static_mutex;
};
#define	G_STATIC_MUTEX_INIT	{ NULL, { { { $g_mutex_contents} }, NULL } }
#define	g_static_mutex_get_mutex(mutex) \
  (g_thread_use_default_impl ? ((GMutex*) &((mutex)->static_mutex)) : \
   g_static_mutex_get_mutex_impl (&((mutex)->runtime_mutex)))
_______EOF
	else
		cat >>$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

	cat >>$outfile <<_______EOF
/* This represents a system thread as used by the implementation. An
 * alien implementaion, as loaded by g_thread_init can only count on
 * "sizeof (gpointer)" bytes to store their info. We however need more
 * for some of our native implementations. */
typedef union _GSystemThread GSystemThread;
union _GSystemThread
{
  char   data[$g_system_thread_sizeof];
  double dummy_double;
  void  *dummy_pointer;
  long   dummy_long;
};
_______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

G_END_DECLS

#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.

glib_header_alloca_h="$ac_cv_header_alloca_h"

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)'
  ;;
$ac_cv_sizeof_long_long)
  gint64='long long'
  if test -n "$glib_cv_long_long_format"; then
    gint64_format='"'$glib_cv_long_long_format'i"'
    guint64_format='"'$glib_cv_long_long_format'u"'
  fi
  glib_extension='G_GNUC_EXTENSION '
  gint64_constant='(G_GNUC_EXTENSION (val##LL))'
  ;;
esac
glib_size_t=$glib_cv_sizeof_size_t

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

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

g_threads_impl_def=$g_threads_impl

g_mutex_has_default="$mutex_has_default"
g_mutex_sizeof="$glib_cv_sizeof_gmutex"
g_system_thread_sizeof="$glib_cv_sizeof_system_thread"
g_mutex_contents="$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"
v    ;;
  *)
    glib_os="#define G_OS_UNIX"
    ;;
esac
])

AC_OUTPUT([
glib-2.0.pc
gmodule-2.0.pc
gthread-2.0.pc
gobject-2.0.pc
glib.spec
Makefile
glib-config-2.0
build/Makefile
build/win32/Makefile
gmodule/gmoduleconf.h
gmodule/Makefile
gobject/Makefile
gthread/Makefile
docs/Makefile
docs/glib-config.1
docs/reference/Makefile
docs/reference/glib/Makefile
docs/reference/gobject/Makefile
tests/Makefile
],[case "$CONFIG_FILES" in
*glib-config-2.0*)chmod +x glib-config-2.0;;
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. ***"
])