$NetBSD: patch-Makefile,v 1.1 2019/10/29 18:04:44 nia Exp $

Allow variables to be overriden by pkgsrc.

--- Makefile.orig	2003-02-25 16:31:32.000000000 +0000
+++ Makefile
@@ -1,6 +1,6 @@
-CC=gcc
+CC?=gcc
 
-SDLCONFIG=sdl-config
+SDLCONFIG?=sdl-config
 
 ifndef prefix
   prefix=/usr/local