add stdlib.h for exit()

diff --git a/render/render.c b/render/render.c
index 0e4d244e9d86bc3e0333f038ce6ae8a6f34db8b4..be2b83100a4aa4ebbc2672049516629c8800d360 100644 (file)
--- a/render/render.c
+++ b/render/render.c
@@ -9,6 +9,10 @@
 #include "image.h"
 #include "kernel/openbox.h"
 
+#ifndef HAVE_STDLIB_H
+#  include <stdlib.h>
+#endif
+
 int render_depth;
 Visual *render_visual;
 Colormap render_colormap;