?RCS: $Id: glibconfig.U 12214 2006-11-04 02:04:04Z cbiere $
?RCS:
?RCS: @COPYRIGHT@
?RCS:
?MAKE:glibconfig glibcflags glibldflags d_glib: glibpackage cc ccflags \
	ldflags cat rm gtkversion Warn d_headless glibversion
?MAKE:	-pick add $@ %<
?S:glibconfig:
?S:	This variable holds the command to use to grab information about glib.
?S: Typically something like "pkg-config glib" or "glib-config".
?S:.
?S:glibcflags:
?S:	This variable holds the compiler flags required to compile with glib.
?S:.
?S:glibldflags:
?S:	This variable holds the linker flags required to link against glib.
?S:.
?S:d_glib:
?S:	This variable is set if compiling against GLib works.
?S:.
?T:modver version
: how can we find information about glib?
echo " "
echo "Checking how we can gather information about glib..." >&4
d_glib="$undef"
if pkg-config $glibpackage --cflags >/dev/null 2>&1; then
	glibconfig="pkg-config $glibpackage"
	modver=--modversion
elif glib-config --cflags >/dev/null 2>&1; then
	glibconfig='glib-config'
	modver=--version
else
	echo "You've got problems!  Do you have glib installed?" >&4
	glibconfig='false'
	modver=''
fi
echo "(I'll use '$glibconfig' to gather that information.)"
glibcflags=`$glibconfig --cflags`
glibldflags=`$glibconfig --libs`
?X:
?X: check that we've got the version they asked for
?X:
version=`$glibconfig $modver`
echo " "
echo "Checking whether glib.h can be compiled against..."
$cat >try.c <<EOC
#include <glib.h>
#ifndef GLIB_MAJOR_VERSION
#error "glib.h not found?"
EOC
case "$d_headless" in
"$define") ;;
*) $cat >>try.c <<EOC
#else
#if GLIB_MAJOR_VERSION != $gtkversion
#error "Wrong glib.h?"
#endif
EOC
	;;
esac
$cat >>try.c <<EOC
#endif

#if $glibversion >= 2
#include <glib-object.h>
#endif

int main(void)
{
  gpointer p;

#if $glibversion >= 2
  p = g_object_new(G_TYPE_OBJECT, "blah", (void *) 0);
#else
  p = g_malloc(23);
#endif

  if (!p)
    return 1;
  return 0;
}
EOC

if $cc -o try try.c $ccflags $ldflags $glibcflags $glibldflags >/dev/null 2>&1;
then
  d_glib="$define"
  echo "We'll be using glib version $version."
else 
  ./warn "Cannot compile against glib version '$version'"
fi
$rm -f try try.c