X-Git-Url: http://git.cinelerra-gg.org/git/?a=blobdiff_plain;f=cinelerra-5.1%2Fguicast%2Fthread.C;h=26ccf9a45918ce78b7147c4dc7bb6829b136da18;hb=38cb4182e11e57fc426bede3825e825e9d61433b;hp=6cde612dfdfbb853902f02e423bc39699817bf18;hpb=21c2e6b36d6a96c2f662a89459d607b5a387f4eb;p=goodguy%2Fhistory.git

diff --git a/cinelerra-5.1/guicast/thread.C b/cinelerra-5.1/guicast/thread.C
index 6cde612d..26ccf9a4 100644
--- a/cinelerra-5.1/guicast/thread.C
+++ b/cinelerra-5.1/guicast/thread.C
@@ -127,9 +127,14 @@ int Thread::join()   // join this thread
 {
 	if( !exists() ) return 0;
 	if( synchronous ) {
-// NOTE: this does not do anything if the thread is not synchronous
+// NOTE: this fails if the thread is not synchronous or
+//  or another thread is already waiting to join.
 		int ret = pthread_join(tid, 0);
-		if( ret ) strerror(ret);
+		if( ret ) {
+			fflush(stdout);
+			fprintf(stderr, "Thread %p: %s\n", (void*)tid, strerror(ret));
+			fflush(stderr);
+		}
 		CLEAR_LOCKS_TID(tid);
 		TheList::dbg_del(tid);
 		tid = ((pthread_t)-1);