winex11.drv/wined3d: Fix tsx11 calling convention.
diff --git a/dlls/wined3d/wined3d_private.h b/dlls/wined3d/wined3d_private.h
index 7e422fb..60414ee5 100644
--- a/dlls/wined3d/wined3d_private.h
+++ b/dlls/wined3d/wined3d_private.h
@@ -483,8 +483,8 @@
/* X11 locking */
-extern void (*wine_tsx11_lock_ptr)(void);
-extern void (*wine_tsx11_unlock_ptr)(void);
+extern void (* CDECL wine_tsx11_lock_ptr)(void);
+extern void (* CDECL wine_tsx11_unlock_ptr)(void);
/* As GLX relies on X, this is needed */
extern int num_lock;