From 342c7e63be38724aa1c3ca09a1b5e65703835596 Mon Sep 17 00:00:00 2001
From: Takayuki Matsuoka <takayuki.matsuoka@gmail.com>
Date: Thu, 11 Jul 2013 22:32:25 +0900
Subject: [PATCH] Fix compile and link error for OSX

---
 Makefile             | 11 ++++++++++-
 src/lz4mt_compat.cpp |  4 ++--
 2 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/Makefile b/Makefile
index c02fd3c..bd3c84e 100644
--- a/Makefile
+++ b/Makefile
@@ -7,12 +7,21 @@ OBJDIR		= obj
 CC		= gcc
 CXX		= g++
 ##CXX		= g++-4.6
+DUMPMACHINE	= $(shell gcc -dumpmachine)
 
 CFLAGS		= -Wall -W -Wextra -pedantic -O2 -std=c99
 CXXFLAGS	= -Wall -W -Wextra -pedantic -Weffc++ -Wno-missing-field-initializers -O2 -std=c++0x -Ilz4/
 
 LD		= $(CXX)
-LDFLAGS		= -lrt -pthread
+LDFLAGS		=
+
+ifneq(, $(findstring darwin, $(DUMPMACHINE)))
+	## Mac OS X
+	LDFLAGS	+= -pthread
+else
+	## Linux, etc
+	LDFLAGS	+= -lrt -pthread
+endif
 
 SRCS		= $(wildcard $(SRCDIR)/*.cpp)
 OBJS		= $(addprefix $(OBJDIR)/,$(notdir $(SRCS:.cpp=.o)))
diff --git a/src/lz4mt_compat.cpp b/src/lz4mt_compat.cpp
index e8d0b99..cffe6b6 100644
--- a/src/lz4mt_compat.cpp
+++ b/src/lz4mt_compat.cpp
@@ -40,10 +40,10 @@ unsigned Lz4Mt::getHardwareConcurrency() {
 
 	// following code is borrowed from boost-1.53.0/libs/thread/src/pthread/thread.cpp
 #if defined(__APPLE__) || defined(__FreeBSD__)
-	{ // ## NOT TESTED ##
+	{
 		int c = 0;
 		size_t size = sizeof(c);
-		if(0 == sysctlbyname("hw.ncpu", &count, &size, NULL, 0)) {
+		if(0 == sysctlbyname("hw.ncpu", &c, &size, NULL, 0)) {
 			return static_cast<unsigned>(c);
 		}
 	}