Avoid calling sem_post on a uninitialized semaphore during thread attach, it works...

diff --git a/libgc/pthread_support.c b/libgc/pthread_support.c
index f70d4f6e731a87cee6bc9dcf3f00d6b7b22b2464..2d54a513d017a742472cdb1c77a86f342047369d 100644 (file)
--- a/libgc/pthread_support.c
+++ b/libgc/pthread_support.c
@@ -1344,7 +1344,8 @@ void * GC_start_routine_head(void * arg, void *base_addr,
     if (start) *start = si -> start_routine;
     if (start_arg) *start_arg = si -> arg;
 
-    sem_post(&(si -> registered));     /* Last action on si.   */
+       if (!(si->flags & FOREIGN_THREAD))
+               sem_post(&(si -> registered));  /* Last action on si.   */
                                        /* OK to deallocate.    */
 #   if defined(THREAD_LOCAL_ALLOC) && !defined(DBG_HDRS_ALL)
        LOCK();