Improved xsync feature testing.

Make sure we actually call any XSync function to test if those functions
are available on the platform. On HPUX there is something wrong since
X11 header files contain required function declarations, however we
cannot link to them.

Reviewed-by: Andreas

1 files changed, 3 insertions, 1 deletions

diff --git a/config.tests/x11/xsync/xsync.cpp b/config.tests/x11/xsync/xsync.cpp
index a7175deb76..ed3ecf5177 100644
--- a/config.tests/x11/xsync/xsync.cpp
+++ b/config.tests/x11/xsync/xsync.cpp
@@ -48,5 +48,7 @@ int main(int, char **)
     XSyncValue value;
     (void*)&XSyncIntToValue;
     (void*)&XSyncCreateCounter;
-    return 0;
+    int a, b;
+    Status ret = XSyncInitialize(NULL, &a, &b);
+    return ret;
 }