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Avoid clobbering potential defines that were set up externally. 

Change on 2015/01/12 by nnoble <nnoble@google.com>
-------------
Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=83799744
This commit is contained in:
nnoble 2015-01-12 16:16:56 -08:00 committed by Nicolas Noble
parent 35e7b0cb5c
commit e1df7dd9f1
1 changed files with 24 additions and 0 deletions
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24
src/core/support/cpu_linux.c
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@ -37,13 +37,37 @@
#include "src/core/support/cpu.h"
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#define GRPC_GNU_SOURCE
#endif
#ifndef __USE_GNU
#define __USE_GNU
#define GRPC_USE_GNU
#endif
#ifndef __USE_MISC
#define __USE_MISC
#define GRPC_USE_MISC
#endif
#include <sched.h>
#ifdef GRPC_GNU_SOURCE
#undef _GNU_SOURCE
#undef GRPC_GNU_SOURCE
#endif
#ifdef GRPC_USE_GNU
#undef __USE_GNU
#undef GRPC_USE_GNU
#endif
#ifdef GRPC_USE_MISC
#undef __USE_MISC
#undef GRPC_USE_MISC
#endif
#include <errno.h>
#include <unistd.h>