From 1423ddfe76d2a3a22d103200e3f672341f81e5a6 Mon Sep 17 00:00:00 2001
From: zhenwei <zhenwei.tw@gmail.com>
Date: Sun, 2 Sep 2018 21:08:41 +0800
Subject: [PATCH] Perform sanity check for OpenCL Library

---
 mk/opencl.mk | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/mk/opencl.mk b/mk/opencl.mk
index 093a35e..146322f 100644
--- a/mk/opencl.mk
+++ b/mk/opencl.mk
@@ -1,7 +1,13 @@
-# FIXME: perform sanity checks before compilation
-OPENCL_LIB ?= /usr/local/cuda/lib64
+OPENCL_LIB_PATH ?= /usr/local/cuda/lib64
+
+OPENCL_LIB := $(shell test -d $(OPENCL_LIB_PATH); echo $$?)
+
+ifneq ($(OPENCL_LIB),0)
+    $(error "Please specify the path to your OpenCL library on your platform")
+endif
 
 CFLAGS += \
         -DENABLE_OPENCL \
-        -I$(OPENCL_PATH)/include
-LDFLAGS += -L$(OPENCL_LIB) -lOpenCL
+        -I$(OPENCL_LIB_PATH)/../include
+
+LDFLAGS += -L$(OPENCL_LIB_PATH) -lOpenCL