[gcompris/gcomprixogoo] Added hard dependancy on X11

[Bruno Coudoin <bcoudoin src gnome org>]

commit 6ef6c6e037ac3b891b5eca9ad0c86489a83b7d5b
Author: Bruno Coudoin <bruno coudoin free fr>
Date:   Sat Feb 13 18:28:56 2010 +0100

    Added hard dependancy on X11
    
    This is done to overcome this issue.
    https://fedoraproject.org/wiki/UnderstandingDSOLinkChange

 configure.ac |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 19c0518..2e2965e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -69,6 +69,7 @@ case "$host" in
     OSX_CFLAGS="$CFLAGS -arch i386 -arch ppc "
     ;;
   *)
+    AC_CHECK_LIB(X11, XOpenDisplay)
     native_osx=no
     OSX_CFLAGS=""
     ;;