echo 'Creating brew-patch.diff'
cat << EOF >> brew-patch.diff
diff --git a/x11vnc/solid.c b/x11vnc/solid.c
index d6b0bda..0b2cfa9 100644
--- a/x11vnc/solid.c
+++ b/x11vnc/solid.c
@@ -177,7 +177,7 @@ unsigned long get_pixel(char *color) {
 
 XImage *solid_root(char *color) {
 #if NO_X11
-	RAWFB_RET_VOID
+	RAWFB_RET(NULL)
 	if (!color) {}
 	return NULL;
 #else
EOF