--- xserver/GL/mesa/Makefile.in.orig	Wed Jul 14 11:57:56 2004
+++ xserver/GL/mesa/Makefile.in	Fri Jun  1 20:59:53 2007
@@ -949,8 +948,8 @@
 
 #CFLAGS = -g -O3
 # -D_POSIX_SOURCE  -DPTHREADS
-libglcore_a_CFLAGS = -UHAVE_CONFIG_H -DXFree86Server -D_POSIX_SOURCE \
-	-D_POSIX_C_SOURCE=199309L -D_SVID_SOURCE -D_BSD_SOURCE $(ASM_DEFINE)
+libglcore_a_CFLAGS = -UHAVE_CONFIG_H -DXFree86Server \
+	-D_SVID_SOURCE -D_BSD_SOURCE $(ASM_DEFINE)
 
 
 # -DPTHREADS