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

dnl we need to AC_DIVERT_PUSH/AC_DIVERT_POP these variable definitions so they
dnl are available for $ac_help expansion (don't we all *love* autoconf?)
AC_DIVERT_PUSH(AC_DIVERSION_NOTICE)dnl
#
# The following version number definitions apply to GLib, GModule and GThread
# as a whole, so if changes occoured in any of them, they are all
# treated with the same interface and binary age.
#
# Making releases:
#   GLIB_MICRO_VERSION += 1;
#   GLIB_INTERFACE_AGE += 1;
#   GLIB_BINARY_AGE += 1;
# if any functions have been added, set GLIB_INTERFACE_AGE to 0.
# if backwards compatibility has been broken,
# set GLIB_BINARY_AGE _and_ GLIB_INTERFACE_AGE to 0.
#
GLIB_MAJOR_VERSION=1
GLIB_MINOR_VERSION=3
GLIB_MICRO_VERSION=1
GLIB_INTERFACE_AGE=0
GLIB_BINARY_AGE=0
GLIB_VERSION=$GLIB_MAJOR_VERSION.$GLIB_MINOR_VERSION.$GLIB_MICRO_VERSION
dnl
AC_DIVERT_POP()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)
AC_DEFINE_UNQUOTED(GLIB_MINOR_VERSION, $GLIB_MINOR_VERSION)
AC_DEFINE_UNQUOTED(GLIB_MICRO_VERSION, $GLIB_MICRO_VERSION)
AC_DEFINE_UNQUOTED(GLIB_INTERFACE_AGE, $GLIB_INTERFACE_AGE)
AC_DEFINE_UNQUOTED(GLIB_BINARY_AGE, $GLIB_BINARY_AGE)

dnl Initialize libtool
AM_PROG_LIBTOOL

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 figure debugging default, prior to $ac_help setup
dnl
AC_DIVERT_PUSH(AC_DIVERSION_NOTICE)dnl
if test `expr $GLIB_MINOR_VERSION \% 2` = 1 ; then
	debug_default=yes
else
	debug_default=minimum
fi
AC_DIVERT_POP()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(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)
  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)
  AC_SUBST(ENABLE_MEM_PROFILE)
  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}")

if test "x$enable_msg_prefix" = "xyes"; then
  AC_DEFINE_UNQUOTED(G_ENABLE_MSG_PREFIX, 1)
fi

# Checks for programs.
AC_PROG_CC
AM_PROG_CC_STDC
AC_PROG_INSTALL

changequote(,)dnl
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
changequote([,])dnl

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_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$ac_cv_sizeof_long_long = x8; then
	# long long is a 64 bit integer.
	AC_MSG_CHECKING(for format to printf and scanf a gint64)
	AC_CACHE_VAL(glib_cv_long_long_format,[
		AC_TRY_RUN([#include <stdio.h>  
			int main()
			{
			  long long b, a = -0x3AFAFAFAFAFAFAFALL;
			  char buffer[1000];
			  sprintf (buffer, "%llu", a);
  			  sscanf (buffer, "%llu", &b);
			  exit (b!=a);
			}
			],
			glib_cv_long_long_format=ll,
			glib_cv_long_long_format=q)])
	AC_MSG_RESULT(%${glib_cv_long_long_format}i)
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_MSG_CHECKING(for __inline)
AC_CACHE_VAL(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
        ,)
])
AC_MSG_RESULT($glib_cv_has__inline)
case x$glib_cv_has__inline in
xyes) AC_DEFINE(G_HAVE___INLINE)
esac
AC_MSG_CHECKING(for __inline__)
AC_CACHE_VAL(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
        ,)
])
AC_MSG_RESULT($glib_cv_has__inline__)
case x$glib_cv_has__inline__ in
xyes) AC_DEFINE(G_HAVE___INLINE__)
esac
AC_MSG_CHECKING(for inline)
AC_CACHE_VAL(glib_cv_hasinline,[
        AC_TRY_RUN([
	inline int foo () { return 0; }
	int main () { return foo (); }
       	],
	glib_cv_hasinline=yes
        ,
	glib_cv_hasinline=no
        ,)
])
AC_MSG_RESULT($glib_cv_hasinline)
case x$glib_cv_hasinline in
xyes) AC_DEFINE(G_HAVE_INLINE)
esac

# check for bytesex stuff
AC_C_BIGENDIAN

# xhexk for header files
AC_CHECK_HEADERS(float.h, AC_DEFINE(HAVE_FLOAT_H))
AC_CHECK_HEADERS(limits.h, AC_DEFINE(HAVE_LIMITS_H))
AC_CHECK_HEADERS(pwd.h, AC_DEFINE(HAVE_PWD_H))
AC_CHECK_HEADERS(sys/param.h, AC_DEFINE(HAVE_SYS_PARAM_H))
AC_CHECK_HEADERS(sys/poll.h, AC_DEFINE(HAVE_SYS_POLL_H))
AC_CHECK_HEADERS(sys/select.h, AC_DEFINE(HAVE_SYS_SELECT_H))
AC_CHECK_HEADERS(sys/time.h, AC_DEFINE(HAVE_SYS_TIME_H))
AC_CHECK_HEADERS(sys/times.h, AC_DEFINE(HAVE_SYS_TIMES_H))
AC_CHECK_HEADERS(unistd.h, AC_DEFINE(HAVE_UNISTD_H))
AC_CHECK_HEADERS(values.h, AC_DEFINE(HAVE_VALUES_H))
AC_CHECK_HEADERS(stdint.h, AC_DEFINE(HAVE_VALUES_H))

# check additional type sizes
size_includes=["
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.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)

# 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)
  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)
fi

# Check for sys_siglist
AC_MSG_CHECKING(for sys_siglist)
AC_TRY_LINK(, [
extern char *sys_siglist[];
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)
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)
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
        AC_DEFINE(HAVE_SYS_SELECT_H)
        AC_MSG_RESULT([yes, found in sys/select.h])
    else
	AC_DEFINE(NO_FD_SET)
	AC_MSG_RESULT(no)
    fi
fi

dnl *** check for sane realloc() ***
AC_MSG_CHECKING(whether realloc (NULL,) will work)
AC_CACHE_VAL(glib_cv_sane_realloc,[
        AC_TRY_RUN([
        #include <stdlib.h>
        int main() {
          return realloc (0, sizeof (int)) == 0;
        }],
        glib_cv_sane_realloc=yes
        AC_DEFINE(REALLOC_0_WORKS)
        ,
        glib_cv_sane_realloc=no
        ,)
])
AC_MSG_RESULT($glib_cv_sane_realloc)


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_MSG_CHECKING(for an implementation of va_copy())
AC_CACHE_VAL(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_MSG_RESULT($glib_cv_va_copy)
AC_MSG_CHECKING(for an implementation of __va_copy())
AC_CACHE_VAL(glib_cv___va_copy,[
	AC_TRY_RUN([
	#include <stdarg.h>
	void f (int i, ...) {
	va_list args1, args2;
	va_start (args1, i);
	__va_copy (args2, args1);
	if (va_arg (args2, int) != 42 || va_arg (args1, int) != 42)
	  exit (1);
	va_end (args1); va_end (args2);
	}
	int main() {
	  f (0, 42);
	  return 0;
	}],
	glib_cv___va_copy=yes
	,
	glib_cv___va_copy=no
	,)
])
AC_MSG_RESULT($glib_cv___va_copy)
AC_MSG_CHECKING(whether va_lists can be copied by value)
AC_CACHE_VAL(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$glib_cv_va_copy" = "xyes"; then
  AC_DEFINE(G_VA_COPY, va_copy)
else if test "x$glib_cv___va_copy" = "xyes"; then
  AC_DEFINE(G_VA_COPY, __va_copy)
fi
fi
if test "x$glib_cv_va_val_copy" = "xno"; then
  AC_DEFINE(G_VA_COPY_AS_ARRAY)
fi
AC_MSG_RESULT($glib_cv_va_val_copy)


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$glib_native_beos" = "xyes"; then
  AC_CHECK_LIB(root, load_image,
      G_MODULE_LIBS="-lbe -lroot -lglib"
      G_MODULE_LIBS_EXTRA="-L\$(top_builddir_full)/.libs"
      G_MODULE_PLUGIN_LIBS="-L\$(top_builddir_full)/gmodule/.libs -lgmodule"
      G_MODULE_IMPL=G_MODULE_IMPL_BEOS 
,)
fi   
dnl *** dlopen() and dlsym() in libdl
if test -z "$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 $G_MODULE_LDFLAGS"
dnl *** check whether we need preceeding underscores
	AC_MSG_CHECKING(for preceeding underscore in symbols)
	AC_CACHE_VAL(glib_cv_uscore,[
		AC_TRY_RUN([
		#include <dlfcn.h>
                int glib_underscore_test (void) { return 42; }
		int main() {
		  void *f1 = (void*)0, *f2 = (void*)0, *handle;
		  handle = dlopen ((void*)0, 0);
		  if (handle) {
		    f1 = dlsym (handle, "glib_underscore_test");
		    f2 = dlsym (handle, "_glib_underscore_test");
		  } return (!f2 || f1);
		}],
			glib_cv_uscore=yes,
			glib_cv_uscore=no,
		)
		rm -f plugin.c plugin.o plugin.lo
	])
	AC_MSG_RESULT($glib_cv_uscore)
	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_LIBS
dnl ******************************

G_THREAD_LIBS=
G_THREAD_LIBS_EXTRA=
G_THREAD_CFLAGS=

mutex_has_default=no
case $have_threads in
        posix|dce)
		G_THREAD_LIBS=error
		glib_save_LIBS="$LIBS"
		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$IN)
			AC_TRY_RUN([#include <pthread.h> 
				void* func(void* data) {}
                                main()
				{ pthread_t t; 
				  exit(pthread_create (&t, $defattr, func, 
						NULL));
				}],
				[AC_MSG_RESULT(yes)
				G_THREAD_LIBS="$add_thread_lib"
				break],
				[AC_MSG_RESULT(no)])
		done
		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"
                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 determination of G_THREAD_CFLAGS
dnl ********************************

if test x"$enable_threads" = xyes; then

    G_THREAD_CFLAGS="$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.
		;;
    esac

    # if we are not finding the ctime_r function, then we probably are
    # not using the proper multithread flag
    old_CPPFLAGS=$CPPFLAGS
    CPPFLAGS="$CPPFLAGS $G_THREAD_CFLAGS"
    # Note: Digital UNIX 4.0d #defines ctime_r to _Pctime_r for gcc.
    AC_EGREP_HEADER([[^a-zA-Z_](_P)?ctime_r[^a-zA-Z_]], time.h, ,
    G_THREAD_CFLAGS=
    AC_MSG_WARN($FLAG_DOES_NOT_WORK))
    CPPFLAGS=$old_CPPFLAGS

    AC_MSG_CHECKING(thread related cflags)

    AC_MSG_RESULT($G_THREAD_CFLAGS)
else
    G_THREAD_CFLAGS=
fi

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

if test x"$enable_threads" = xyes; then
	glib_save_LIBS="$LIBS"
	glib_save_CFLAGS="$CFLAGS"
	# we are not doing the following for now, as this might require glib 
	# to always be linked with the thread libs on some platforms. 
	# LIBS="$LIBS $G_THREAD_LIBS"
	CFLAGS="$CFLAGS $G_THREAD_CFLAGS"
	AC_CHECK_FUNCS(localtime_r)
	if test "$ac_cv_header_pwd_h" = "yes"; then
		AC_MSG_CHECKING([for getpwuid_r])
	 	AC_CACHE_VAL(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*);
				errno = 0;
				getpwuid_r (0, &buffer, &buffer, 
					sizeof (buffer), &pointer);
				return errno == ENOSYS;}],
				[ac_cv_func_getpwuid_r=yes],
				[ac_cv_func_getpwuid_r=no])])
		if test "$ac_cv_func_getpwuid_r" = yes; then
			AC_MSG_RESULT(yes)
			AC_DEFINE(HAVE_GETPWUID_R)
		else
			AC_MSG_RESULT(no)
		fi
		if test "$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)
				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 $GTHREAD_COMPILE_IMPL_DEFINES"
		GLIB_SIZEOF([#include <pthread.h>],
			pthread_t,
			system_thread)
		# This is not AC_CHECK_FUNC to also work with function
		# name mangling in header files.
		AC_MSG_CHECKING(for pthread_attr_setstacksize)
		AC_TRY_LINK([#include <pthread.h>],
			[pthread_attr_t t; pthread_attr_setstacksize(&t,0)],
			[AC_MSG_RESULT(yes)
			AC_DEFINE(HAVE_PTHREAD_ATTR_SETSTACKSIZE)],
			[AC_MSG_RESULT(no)])
		AC_MSG_CHECKING(for minimal/maximal thread priority)
		if test x"$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)
			AC_DEFINE_UNQUOTED(POSIX_MAX_PRIORITY,$posix_priority_max)
		fi
		posix_yield_func=none
		AC_MSG_CHECKING(for posix yield function)
		for yield_func in sched_yield pthread_yield_np pthread_yield \
							thr_yield; do
			AC_TRY_LINK([#include <pthread.h>],
				[$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)
		CPPFLAGS="$glib_save_CPPFLAGS"
	else # solaris threads
		GLIB_SIZEOF([#include <thread.h>],
			thread_t,
			system_thread)
	fi

	LIBS="$glib_save_LIBS"
	CFLAGS="$glib_save_CFLAGS"

	# 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")
AC_SUBST(G_THREAD_CFLAGS)
AC_SUBST(G_THREAD_LIBS)
AC_SUBST(G_THREAD_LIBS_EXTRA)

CFLAGS="$CFLAGS $G_THREAD_CFLAGS"

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 *** 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 GLIBCONFIG_H
#define GLIBCONFIG_H

#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */

_______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>' >> $outfile
	fi
	if test x$g_mutex_header_file != x; then
	  echo '#include <'"$g_mutex_header_file"'>' >> $outfile
	fi
	if test x$glib_sys_poll_h = xyes; then
	  echo '#define GLIB_HAVE_SYS_POLL_H' >> $outfile
	fi

	cat >> $outfile <<_______EOF

#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_FORMAT $gint64_format
#define G_GUINT64_FORMAT $guint64_format
#define G_GINT64_CONSTANT(val)	$gint64_constant
_______EOF
	fi


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

#ifdef __cplusplus
}
#endif /* __cplusplus */

#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.

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)'
  ;;
$ac_cv_sizeof_long_long)
  gint64='long long'
  gint64_format='"'$glib_cv_long_long_format'i"'
  guint64_format='"'$glib_cv_long_long_format'u"'
  glib_extension='G_GNUC_EXTENSION '
  gint64_constant='(G_GNUC_EXTENSION (val##LL))'
  ;;
esac

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$enable_threads in
xyes)	g_enable_threads_def="#define";;
*)	g_enable_threads_def="#undef ";;
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"
    ;;
  *)
    glib_os="#define G_OS_UNIX"
    ;;
esac
])

AC_OUTPUT([
glib.spec
Makefile
glib-config
gmodule/gmoduleconf.h
gmodule/Makefile
gthread/Makefile
docs/Makefile
docs/glib-config.1
tests/Makefile
],[case "$CONFIG_FILES" in
*glib-config*)chmod +x glib-config;;
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 "Distributions should *NOT* ship a development package of this GLib."
echo "Do not ship the headers and do not ship the glib-config script.  These"
echo "things will conflict with the stable 1.2 series.  Package only enough"
echo "to satisfy the requirements of some other package.  Package only the"
echo "library itself.  Doing otherwise will do no favors to the community."
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. ***"
])