$OpenBSD: patch-src_Makefile,v 1.4 2020/09/16 02:59:12 bcallah Exp $

Don't hardcode PREFIX, CC, or CXX.

Index: src/Makefile
--- src/Makefile.orig
+++ src/Makefile
@@ -29,7 +29,7 @@ EXE = stockfish
 endif
 
 ### Installation dir definitions
-PREFIX = /usr/local
+PREFIX ?= /usr/local
 BINDIR = $(PREFIX)/bin
 
 ### Built-in benchmark for pgo-builds
@@ -305,8 +305,8 @@ ifeq ($(COMP),)
 endif
 
 ifeq ($(COMP),gcc)
-	comp=gcc
-	CXX=g++
+	comp=${CC}
+	CXX?=g++
 	CXXFLAGS += -pedantic -Wextra -Wshadow
 
 	ifeq ($(arch),$(filter $(arch),armv7 armv8))
