From 74826c56a2e196a2f09afa93d99b3d70af6e142f Mon Sep 17 00:00:00 2001
From: Yang Chen <yangchen@nvidia.com>
Date: Mon, 12 Feb 2018 13:37:52 -0800
Subject: [PATCH] set CUDA library search path for Mac OS X

darknet failed to build on Mac OS X, because the Makefile passed an incorrect
library search path for locating CUDA libraries.
On Mac OS X, CUDA library installation path is /usr/local/cuda/lib by default.
This patch fixed the issue.
---
 Makefile | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 5f6f6e2d..e53d6f0e 100644
--- a/Makefile
+++ b/Makefile
@@ -19,6 +19,7 @@ ALIB=libdarknet.a
 EXEC=darknet
 OBJDIR=./obj/
 
+OS=$(shell uname -s)
 CC=gcc
 NVCC=nvcc 
 AR=ar
@@ -48,7 +49,12 @@ endif
 ifeq ($(GPU), 1) 
 COMMON+= -DGPU -I/usr/local/cuda/include/
 CFLAGS+= -DGPU
-LDFLAGS+= -L/usr/local/cuda/lib64 -lcuda -lcudart -lcublas -lcurand
+ifeq ($(OS), Darwin)
+LDFLAGS+= -L/usr/local/cuda/lib
+else
+LDFLAGS+= -L/usr/local/cuda/lib64
+endif
+LDFLAGS+=-lcuda -lcudart -lcublas -lcurand
 endif
 
 ifeq ($(CUDNN), 1)