mesa: added formats.c to build
diff --git a/src/mesa/SConscript b/src/mesa/SConscript
index cad5676..6dfbd26 100644
--- a/src/mesa/SConscript
+++ b/src/mesa/SConscript
@@ -56,6 +56,7 @@
 		'main/feedback.c',
 		'main/ffvertex_prog.c',
 		'main/fog.c',
+		'main/formats.c',
 		'main/framebuffer.c',
 		'main/get.c',
 		'main/getstring.c',