Index: Makefile
===================================================================
--- Makefile	(revision 508337)
+++ Makefile	(working copy)
@@ -19,6 +19,7 @@
 GH_ACCOUNT=	resurrecting-open-source-projects
 
 USES=		autoreconf
+USE_CSTD=	c99
 GNU_CONFIGURE=	yes
 USE_XORG=	x11 xfixes xcursor