ITS#9372 Default to using POSIX semaphores on MacOS

Unless robust is specified (then use SysV)

ITS#9372 Default to using POSIX semaphores on MacOS
Unless robust is specified (then use SysV)
d85fe32d · Kris Zyp · Howard Chu · 576ccd10 · d85fe32d
Commit d85fe32d authored Oct 20, 2020 by Kris Zyp Committed by Howard Chu Oct 30, 2020
--- a/libraries/liblmdb/mdb.c
+++ b/libraries/liblmdb/mdb.c
@@ -164,6 +164,8 @@ typedef SSIZE_T	ssize_t;
 #if defined(__FreeBSD__) && defined(__FreeBSD_version) && __FreeBSD_version >= 1100110
 # define MDB_USE_POSIX_MUTEX	1
 # define MDB_USE_ROBUST	1
+#elif defined(__APPLE__) && !defined(MDB_USE_ROBUST)
+# define MDB_USE_POSIX_SEM	1
 #elif defined(__APPLE__) || defined (BSD) || defined(__FreeBSD_kernel__)
 # if !(defined(MDB_USE_POSIX_MUTEX) || defined(MDB_USE_POSIX_SEM))
 # define MDB_USE_SYSV_SEM	1