From bb0dcce28b74102b3e5ada2eb28f5a302d9a079e Mon Sep 17 00:00:00 2001
From: Tom Deakin <tom.deakin@bristol.ac.uk>
Date: Mon, 27 Jul 2015 17:40:24 +0100
Subject: [PATCH] Check for nvcc before building CUDA version

---
 Makefile | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Makefile b/Makefile
index a2ad125..854c4e2 100644
--- a/Makefile
+++ b/Makefile
@@ -13,7 +13,11 @@ gpu-stream-ocl: ocl-stream.cpp
 	c++ $< $(FLAGS) -o $@ $(LIBS)
 
 gpu-stream-cuda: cuda-stream.cu
+ifeq ($(shell which nvcc > /dev/null; echo $$?), 0)
 	nvcc $< $(FLAGS) -o $@
+else
+	@echo "Cannot find nvcc, please install CUDA";
+endif
 
 clean:
 	rm -f gpu-stream-ocl gpu-stream-cuda