From b377e4c8c1aca8ae8a12a0b09f6c37ee6938cad7 Mon Sep 17 00:00:00 2001
From: David Betz <dbetz@xlisper.com>
Date: Thu, 2 Apr 2015 20:19:58 -0400
Subject: [PATCH] Minor makefile updates.

---
 Makefile | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/Makefile b/Makefile
index 260a9b5..31c8a11 100644
--- a/Makefile
+++ b/Makefile
@@ -6,17 +6,17 @@ ifeq ($(CROSS),win32)
   CC=i586-mingw32msvc-gcc
   CXX=i586-mingw32msvc-g++
   EXT=.exe
-  BUILD=./build-win32
+  BUILD?=./build-win32
 else ifeq ($(CROSS),rpi)
   CC=arm-linux-gnueabihf-gcc
   CXX=arm-linux-gnueabihf-g++
   EXT=
-  BUILD=./build-rpi
+  BUILD?=./build-rpi
 else
   CC=gcc
   CXX=g++
   EXT=
-  BUILD=./build
+  BUILD?=./build
 endif
 
 TARGET = $(BUILD)/spinsim$(EXT)