glib/configure.in

# 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}

# 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=1
GLIB_MICRO_VERSION=3
GLIB_INTERFACE_AGE=0
GLIB_BINARY_AGE=0
GLIB_VERSION=$GLIB_MAJOR_VERSION.$GLIB_MINOR_VERSION.$GLIB_MICRO_VERSION
AC_SUBST(GLIB_VERSION)

# 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(glibconfig.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_ARG_ENABLE(debug, [  --enable-debug=[no/minimum/yes] turn on debugging [default=minimum]],,enable_debug=minimum)
AC_ARG_ENABLE(mem_check, [  --enable-mem-check=[no/yes] turn on malloc/free sanity checking [default=no]],,enable_mem_check=no)
AC_ARG_ENABLE(mem_profile, [  --enable-mem-profile=[no/yes] 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_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="$CFLAGS -g"
  CFLAGS="$CFLAGS -DG_ENABLE_DEBUG"
else
  if test "x$enable_debug" = "xno"; then
    CFLAGS="$CFLAGS -DG_DISABLE_ASSERT -DG_DISABLE_CHECKS"
  fi
fi

AC_DEFINE_UNQUOTED(G_COMPILED_WITH_DEBUGGING, "${enable_debug}")

# Checks for programs.
AC_PROG_CC
AM_PROG_CC_STDC
AC_PROG_INSTALL

if eval "test x$GCC = xyes"; then
  if eval test -z \"`echo "$CFLAGS" | grep "\-Wall" 2> /dev/null`\" ; then
    CFLAGS="$CFLAGS -Wall"
  fi

  if eval "test x$enable_ansi = xyes"; then
    if eval test -z \"`echo "$CFLAGS" | grep "\-ansi" 2> /dev/null`\" ; then
      CFLAGS="$CFLAGS -ansi"
    fi

    if eval test -z \"`echo "$CFLAGS" | grep "\-pedantic" 2> /dev/null`\" ; then
      CFLAGS="$CFLAGS -pedantic"
    fi
  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_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)

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


dnl header file checks
AC_CHECK_HEADERS(float.h, AC_DEFINE(HAVE_FLOAT_H))
AC_CHECK_HEADERS(limits.h, AC_DEFINE(HAVE_LIMITS_H))
AC_CHECK_HEADERS(values.h, AC_DEFINE(HAVE_VALUES_H))

# Check for strerror, strsignal, memmove, vsnprintf, and strcasecmp functions
AC_CHECK_FUNCS(strerror strsignal memmove vsnprintf strcasecmp)

# 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[];
sys_siglist[1][0] = 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 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_mask, 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

# This stuff is here, only so that we can define these
# things in glibconfig.h. If ../config.h was installed
# (under some other name?) then the definitions would
# belong there. (They are only used in GDK)

# Check for wchar.h

AC_MSG_CHECKING(for wchar.h)
AC_TRY_CPP([#include <wchar.h>], gtk_ok=yes, gtk_ok=no)
if test $gtk_ok = yes; then
   AC_DEFINE(HAVE_WCHAR_H)
fi
AC_MSG_RESULT($gtk_ok)

# Check for wctype.h (for iswalnum)

AC_MSG_CHECKING(for wctype.h)
AC_TRY_CPP([#include <wctype.h>], gtk_ok=yes, gtk_ok=no)
if test $gtk_ok = yes; then
   AC_DEFINE(HAVE_WCTYPE_H)
fi
AC_MSG_RESULT($gtk_ok)

# The following is necessary for Linux libc-5.4.38

AC_MSG_CHECKING(if iswalnum() and friends are properly defined)
AC_TRY_LINK([#include <stdlib.h>],[
#if (defined(HAVE_WCTYPE_H) || defined(HAVE_WCHAR_H))
#  ifdef HAVE_WCTYPE_H
#    include <wctype.h>
#  else
#    ifdef HAVE_WCHAR_H
#      include <wchar.h>
#    endif
#  endif
#else
#  define iswalnum(c) ((wchar_t)(c) <= 0xFF && isalnum(c))
#endif
iswalnum((wchar_t) 0);
], gtk_ok=yes, gtk_ok=no)

if test $gtk_ok = no; then
   AC_DEFINE(HAVE_BROKEN_WCTYPE)
fi
AC_MSG_RESULT($gtk_ok)

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_LDFLAGS=
G_MODULE_IMPL=
G_MODULE_NEED_USCORE=0
G_MODULE_HAVE_DLERROR=0
dnl *** dlopen() in system libraries
if test -z "$G_MODULE_IMPL"; then
	AC_CHECK_FUNC(dlopen,
		G_MODULE_IMPL=G_MODULE_IMPL_DL
	,)
fi
dnl *** dlopen() in libdl
if test -z "$G_MODULE_IMPL"; then
	AC_CHECK_LIB(dl, dlopen,
		G_MODULE_LIBS=-ldl
		G_MODULE_IMPL=G_MODULE_IMPL_DL
	,)
fi
dnl *** shl_load() in libdld (HP-UX)
if test -z "$G_MODULE_IMPL"; then
	G_MODULE_LDFLAGS='-Wl,-E'
	AC_CHECK_LIB(dld, shl_load,
		G_MODULE_LIBS=-ldld
		G_MODULE_IMPL=G_MODULE_IMPL_DLD
	,)
fi
dnl *** additional checks for G_MODULE_IMPL_DL
if test "$G_MODULE_IMPL" = "G_MODULE_IMPL_DL"; then
	if test -d /usr/include/linux; then
		G_MODULE_LDFLAGS='-rdynamic'
	fi
	LIBS_orig="$LIBS"
	LDFLAGS_orig="$LDFLAGS"
	LIBS="$LIBS $G_MODULE_LIBS"
	LDFLAGS="$LDFLAGS $G_MODULE_LDFLAGS"
dnl *** check whether we need preceeding underscores
	AC_MSG_CHECKING(for preceeding underscore in symbols)
	AC_CACHE_VAL(glib_cv_uscore,[
		AC_TRY_RUN([
		#include <dlfcn.h>
		int glib_underscore_test (void) { return 42; }
		int main() {
		  void *f1 = (void*)0, *f2 = (void*)0, *handle;
		  handle = dlopen ((void*)0, 0);
		  if (handle) {
		    f1 = dlsym (handle, "glib_underscore_test");
		    f2 = dlsym (handle, "_glib_underscore_test");
		  } return !(f2 && !f1);
		}],
			glib_cv_uscore=yes
			G_MODULE_NEED_USCORE=1
		,
			glib_cv_uscore=no
			G_MODULE_NEED_USCORE=0
		,)
	])
	AC_MSG_RESULT($glib_cv_uscore)
	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_LDFLAGS)
AC_SUBST(G_MODULE_HAVE_DLERROR)
AC_SUBST(G_MODULE_NEED_USCORE)


AC_OUTPUT([
Makefile
glib-config
gmodule/gmoduleconf.h
gmodule/Makefile
],[chmod +x glib-config])