add glib.h for guint

diff --git a/render/mask.h b/render/mask.h
index 90a622b3fe39353292680e4230e5e3f19391f190..2d507a63a70957c47581efcf9478ae97c8029f9e 100644 (file)
--- a/render/mask.h
+++ b/render/mask.h
@@ -2,6 +2,7 @@
 #define __mask_h
 
 #include <X11/Xlib.h>
+#include <glib.h>
 
 typedef struct {
   Pixmap mask;