Mac OS fix 2

Author: olabetskyi

cfg/posix.cfg

@@ -6590,7 +6590,7 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
   <define name="PTHREAD_MUTEX_TIMED_NP" value="0"/>
   <define name="PTHREAD_MUTEX_INITIALIZER" value="{ { 0, 0, 0, 0, 0, 0, 0, { 0, 0 } } }"/>
   <define name="PTHREAD_MUTEX_RECURSIVE" value="1"/>
-  <define name="PTHREAD_ONCE_INIT" value="0"/>
+  <define name="PTHREAD_ONCE_INIT" value="{0, {0}}"/>
   <define name="PTHREAD_PRIO_INHERIT" value="1"/>
   <define name="PTHREAD_PRIO_NONE" value="0"/>
   <define name="PTHREAD_PRIO_PROTECT" value="2"/>

test/cfg/posix.c

@@ -1595,7 +1595,8 @@ void pthread_define_test()
     pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
     (void)mutex;
     PTHREAD_MUTEX_RECURSIVE;
-    PTHREAD_ONCE_INIT;
+    pthread_once_t once_block = PTHREAD_ONCE_INIT;
+    (void)once_block;
     PTHREAD_PRIO_INHERIT;
     PTHREAD_PRIO_NONE;
     PTHREAD_PRIO_PROTECT;