Implement the same fix jakemsr@ used to make audio/jack work with alpha.

(va_list cannot be NULL)
Bump -main subpackage.

input from jakemsr@
ok ajacoutot@

graphics/gegl/Makefile

@@ -1,4 +1,4 @@
-# $OpenBSD: Makefile,v 1.4 2008/06/29 20:44:51 sthen Exp $
+# $OpenBSD: Makefile,v 1.5 2008/07/02 14:03:40 merdely Exp $
 
 SHARED_ONLY=	Yes
 
@@ -9,7 +9,7 @@ V=		0.0.16
 DISTNAME=	gegl-${V}
 CATEGORIES=	graphics devel
 
-PKGNAME-main=	gegl-${V}p0
+PKGNAME-main=	gegl-${V}p1
 PKGNAME-plugins=gegl-plugins-${V}p1
 
 SHARED_LIBS=	gegl-0.0	0.0 # .16.0

graphics/gegl/patches/patch-gegl_graph_gegl-node_c

@@ -0,0 +1,20 @@
+$OpenBSD: patch-gegl_graph_gegl-node_c,v 1.1 2008/07/02 14:03:40 merdely Exp $
+--- gegl/graph/gegl-node.c.orig	Tue Jul  1 17:17:35 2008
++++ gegl/graph/gegl-node.c	Tue Jul  1 17:18:59 2008
+@@ -280,6 +280,7 @@ set_property (GObject      *gobject,
+               GParamSpec   *pspec)
+ {
+   GeglNode *node = GEGL_NODE (gobject);
++  va_list va;
+ 
+   switch (property_id)
+     {
+@@ -288,7 +289,7 @@ set_property (GObject      *gobject,
+         break;
+ 
+       case PROP_OP_CLASS:
+-        gegl_node_set_op_class (node, g_value_get_string (value), NULL, NULL);
++        gegl_node_set_op_class (node, g_value_get_string (value), NULL, va);
+         break;
+ 
+       case PROP_OPERATION: