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Bug 3011

Summary: pthread/SDL_syssem.c requires _GNU_SOURCE
Product: SDL Reporter: Ozkan Sezer <sezeroz>
Component: threadAssignee: Sam Lantinga <slouken>
Status: RESOLVED FIXED QA Contact: Sam Lantinga <slouken>
Severity: normal    
Priority: P2    
Version: HG 2.0   
Hardware: All   
OS: Linux   

Description Ozkan Sezer 2015-06-13 19:52:46 UTC 
pthread/SDL_syssem.c requires _GNU_SOURCE predefined (like SDL_sysmutex.c),
otherwise sem_timedwait() prototype might not be available to it.  Problem
seen with glibc-2.3.4.  Trivial patch below.

diff -r a8140c580b85 src/thread/pthread/SDL_syssem.c
--- a/src/thread/pthread/SDL_syssem.c	Sat Jun 13 10:47:55 2015 -0700
+++ b/src/thread/pthread/SDL_syssem.c	Sat Jun 13 22:10:14 2015 +0300
@@ -20,6 +20,9 @@
 */
 #include "../../SDL_internal.h"
 
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
 #include <errno.h>
 #include <pthread.h>
 #include <semaphore.h>
Comment 1 Sam Lantinga 2015-06-13 20:37:10 UTC 
Fixed, thanks!
https://hg.libsdl.org/SDL/rev/e9738a3ac057