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author | Brian Silverman <bsilver16384@gmail.com> | 2015-06-16 16:50:25 -0700 |
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committer | Brian Silverman <bsilver16384@gmail.com> | 2015-06-16 16:50:57 -0700 |
commit | beb55fa825acf524fe69dd8624bc4eddda39b7e5 (patch) | |
tree | 12eb67c9ba6d2b6b9e8f5fc8ba081992cb0254e7 | |
parent | 287ab79862c112ccc197160088cb640295392e35 (diff) | |
download | glog-beb55fa825acf524fe69dd8624bc4eddda39b7e5.tar.gz glog-beb55fa825acf524fe69dd8624bc4eddda39b7e5.tar.bz2 glog-beb55fa825acf524fe69dd8624bc4eddda39b7e5.zip |
Fix redefinition of _XOPEN_SOURCE.
Under Debian Jessie, I get a warning about redefining _XOPEN_SOURCE
which is easy to fix.
-rw-r--r-- | src/base/mutex.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/base/mutex.h b/src/base/mutex.h index 37527d5..ced2b99 100644 --- a/src/base/mutex.h +++ b/src/base/mutex.h @@ -134,7 +134,9 @@ // *does* cause problems for FreeBSD, or MacOSX, but isn't needed // for locking there.) # ifdef __linux__ -# define _XOPEN_SOURCE 500 // may be needed to get the rwlock calls +# ifndef _XOPEN_SOURCE // Some other header might have already set it for us. +# define _XOPEN_SOURCE 500 // may be needed to get the rwlock calls +# endif # endif # include <pthread.h> typedef pthread_rwlock_t MutexType; |