Don't use __sync_fetch_and_add_si(), __sync_bool_compare_and_swap_si()

and __sync_bool_compare_and_swap_di() for atomic ops. Those are GCC
intrinsincs before GCC-4.1.0. With GCC 4.2.x in the tree, this breaks
the build. The glib20 code already has the right intrinsincs, so we
can eliminate this patch.

Ok'd by: marcus@

devel/glib20/files/patch-glib_gatomic.c

@@ -1,37 +0,0 @@
---- glib/gatomic.c.orig	Thu Jul  6 11:21:02 2006
-+++ glib/gatomic.c	Thu Jul  6 11:18:48 2006
-@@ -414,14 +414,14 @@
- g_atomic_int_exchange_and_add (volatile gint *atomic,
- 			       gint           val)
- {
--  return __sync_fetch_and_add (atomic, val);
-+  return __sync_fetch_and_add_si (atomic, val);
- }
-  
- void
- g_atomic_int_add (volatile gint *atomic, 
- 		  gint val)
- {
--  __sync_fetch_and_add (atomic, val);
-+  __sync_fetch_and_add_si (atomic, val);
- }
- 
- gboolean
-@@ -429,7 +429,7 @@
- 				   gint           oldval, 
- 				   gint           newval)
- {
--  return __sync_bool_compare_and_swap (atomic, oldval, newval);
-+  return __sync_bool_compare_and_swap_si (atomic, oldval, newval);
- }
- 
- gboolean
-@@ -437,7 +437,7 @@
- 				       gpointer           oldval, 
- 				       gpointer           newval)
- {
--  return __sync_bool_compare_and_swap ((long *)atomic, 
-+  return __sync_bool_compare_and_swap_di ((long *)atomic, 
- 				       (long)oldval, (long)newval);
- }
-