[grits] Add X11 library for sync calls

[Andy Spencer <andys src gnome org>]

commit c44c9e1d5ed7a07f6b068804591a4c059580ac63
Author: Andy Spencer <andy753421 gmail com>
Date:   Thu Dec 20 06:59:51 2012 +0000

    Add X11 library for sync calls

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 7f57cb6..e3e9dc4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -52,7 +52,7 @@ GL_CFLAGS="-DSYS_$SYS"
 case "$SYS" in
 	"WIN") GL_LIBS="-lglu32 -lopengl32" ;;
 	"MAC") GL_LIBS="-framework OpenGL" ;;
-	"X11") GL_LIBS="-lGL -lGLU" ;;
+	"X11") GL_LIBS="-lX11 -lGL -lGLU" ;;
 esac
 AC_SUBST([GL_CFLAGS])
 AC_SUBST([GL_LIBS])