diff -up mesa-demos-20100529/src/tests/Makefile.am.orig mesa-demos-20100529/src/tests/Makefile.am
--- mesa-demos-20100529/src/tests/Makefile.am.orig	2010-05-30 09:11:04.000000000 +1000
+++ mesa-demos-20100529/src/tests/Makefile.am	2010-05-30 09:11:09.000000000 +1000
@@ -169,6 +169,7 @@ endif
 
 afsmultiarb_LDADD = ../util/libutil.la
 arraytexture_LDADD = ../util/libutil.la
+auxbuffer_LDADD = -lX11
 bug_3195_LDADD = ../util/libutil.la
 bumpmap_LDADD = ../util/libutil.la
 floattex_LDADD = ../util/libutil.la