_XOPEN_SOURCE      28 third_party/re2/util/mutex.h #   undef _XOPEN_SOURCE
_XOPEN_SOURCE      29 third_party/re2/util/mutex.h #   define _XOPEN_SOURCE 500  // may be needed to get the rwlock calls
_XOPEN_SOURCE     428 third_party/sqlite/amalgamation/sqlite3.c #  define _XOPEN_SOURCE 500  /* Needed to enable pthread recursive mutexes */
_XOPEN_SOURCE     188 third_party/sqlite/src/src/sqliteInt.h #  define _XOPEN_SOURCE 500  /* Needed to enable pthread recursive mutexes */
_XOPEN_SOURCE     129 third_party/tcmalloc/chromium/src/base/simple_mutex.h #   define _XOPEN_SOURCE 500  // may be needed to get the rwlock calls
_XOPEN_SOURCE      40 third_party/tcmalloc/chromium/src/tcmalloc.h # define _XOPEN_SOURCE 600  // for posix_memalign
_XOPEN_SOURCE     129 third_party/tcmalloc/vendor/src/base/simple_mutex.h #   define _XOPEN_SOURCE 500  // may be needed to get the rwlock calls
_XOPEN_SOURCE      40 third_party/tcmalloc/vendor/src/tcmalloc.h # define _XOPEN_SOURCE 600  // for posix_memalign