From 8cfdb2a3b97a28cc212099d6dbd797190f50a04d Mon Sep 17 00:00:00 2001
From: Steffen Jaeckel <s@jaeckel.eu>
Date: Wed, 14 Jun 2017 14:11:00 +0200
Subject: [PATCH] fix warning on OS X

---
 makefile_include.mk | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/makefile_include.mk b/makefile_include.mk
index df2dd7e..842afda 100644
--- a/makefile_include.mk
+++ b/makefile_include.mk
@@ -23,6 +23,7 @@ VERSION_LIB=1:0:0
 # by giving them as a parameter to make:
 #  make CFLAGS="-I./src/headers/ -DLTC_SOURCE ..." ...
 #
+
 CFLAGS += -Wall -W -Wshadow -Isrc/headers
 
 ifdef COMPILE_DEBUG
@@ -31,7 +32,12 @@ CFLAGS += -g3
 else
 ifndef IGNORE_SPEED
 
-CFLAGS += -O3 -funroll-loops
+CFLAGS += -O3
+
+PLATFORM := $(shell uname | sed -e 's/_.*//')
+ifneq ($(PLATFORM), Darwin)
+CFLAGS += -funroll-loops
+endif
 
 #profiling
 #PROF=-pg -g