?RCS: $Id: gtkconfig.U 12212 2006-11-04 01:43:46Z cbiere $
?RCS:
?RCS: @COPYRIGHT@
?RCS:
?MAKE:gtkconfig gtkcflags gtkldflags d_gtk: gtkversion gtkpackage awk \
	glibcflags glibldflags Warn d_headless cat rm cc ccflags ldflags
?MAKE:	-pick add $@ %<
?S:gtkconfig:
?S:	This variable holds the command to use to grab information about GTK.
?S: Typically something like "pkg-config gtk+" or "gtk-config".
?S:.
?S:gtkcflags:
?S:	This variable holds the compiler flags required to compile with GTK.
?S:.
?S:gtkldflags:
?S:	This variable holds the linker flags required to link against GTK.
?S:.
?S:d_gtk:
?S:	This variable is if compiling against Gtk+ works.
?S:.
?T:modver version vint flag missing allok
: how can we find information about GTK?
d_gtk="$undef"
case "$d_headless" in
"$define")
?X: Since there is no GUI, simply include the glib flags
	gtkcflags="$glibcflags"
	gtkldflags="$glibldflags"
	;;
*)
?X: Indentation wrong on purpose
echo " "
echo "Checking how we can gather information about GTK+..." >&4
if pkg-config $gtkpackage --cflags >/dev/null 2>&1; then
	gtkconfig="pkg-config $gtkpackage"
	modver=--modversion
elif gtk-config --cflags >/dev/null 2>&1; then
	gtkconfig='gtk-config'
	modver=--version
else
	echo "You've got problems!  Do you have GTK+ installed?" >&4
	gtkconfig='false'
	modver=''
fi
echo "(I'll use '$gtkconfig' to gather that information.)"
?X: check that we've got the version they asked for
version=`$gtkconfig $modver`
case "$gtkversion" in
1)
	case "$version" in
	1.*)
		vint=`echo $version | $awk -F. '{print $1 * 10000 + $2 * 100 + $3;}'`
		if test 0$vint -lt 10210; then
			echo "Sorry, you have GTK+ $version, I need at least 1.2.10." >&4
			exit 1;
		else
			echo "OK, you have GTK+ $version"
		fi
		;;
	*) ./warn "you asked for GTK+ $gtkversion, I found $version";;
	esac
	;;
2)
	case "$version" in
	2.*)
		vint=`echo $version | $awk -F. '{print $1 * 10000 + $2 * 100 + $3;}'`
		if test 0$vint -lt 20201; then
			echo "Sorry, you have GTK+ $version, I need at least 2.2.1." >&4
			exit 1;
		else
			echo "OK, you have GTK+ $version"
		fi
		;;
	*) ./warn "you asked for GTK+ $gtkversion, I found $version";;
	esac
	;;
*)
	echo "Sorry, I don't know anything about GTK+ $version." >&4
	exit 1
	;;
esac
gtkcflags=`$gtkconfig --cflags`
gtkldflags=`$gtkconfig --libs`
?X:
?X: Make sure all the glib C flags are included, append all if any missing.
?X:
missing=false
allok=true
for flag in "$glibcflags"; do
	case "$gtkcflags" in
	*"$flag"*) ;;
	*) missing=true; break;;
	esac
done
if $missing; then
	echo "(Some glib C flags are missing from GTK+ flags, adding all of them.)"
	gtkcflags="$gtkcflags $glibcflags"
	allok=false
fi
?X: Make sure all the glib ld flags are included, append all if any missing.
missing=false
for flag in "$glibldflags"; do
	case "$gtkldflags" in
	*"$flag"*) ;;
	*) missing=true; break;;
	esac
done
if $missing; then
	echo "(Some glib ld flags are missing from GTK+ flags, adding all of them.)"
	gtkldflags="$gtkldflags $glibldflags"
	allok=false
fi
if $allok; then
	echo "Good, all the cc and ld flags from glib are included in GTK+ flags."
fi
?X: Remember, indentation wrong on purpose
;;
esac

case "$d_headless" in
"$undef") echo "Checking whether Gtk+ can be compiled against..."
$cat >try.c <<EOC
#include <stdlib.h>
#include <glib.h>
#include <gtk/gtk.h>
int main(void)
{
  GtkWidget *window;
  gpointer p;

  window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
  if (!window)
    return 1;
  p = g_malloc(23);
  if (!p)
    return 1;
  return 0;
}
EOC

if $cc -o try try.c $ccflags $ldflags $gtkcflags $gtkldflags  >/dev/null 2>&1;
then
  d_gtk="$define"
  echo "We'll be using Gtk+ version $version."
else 
  ./warn "Cannot compile against Gtk+ version '$version'"
fi
$rm -f try try.c
;;
esac