Mesa (master): os/os_thread: Revert pipe_barrier pre-processing logic.

[Jose Fonseca]

Module: Mesa
Branch: master
Commit: fa75cc4b896ea16efb43c01f0e220a97773c3a2e
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=fa75cc4b896ea16efb43c01f0e220a97773c3a2e

Author: José Fonseca <jfonseca at vmware.com>
Date:   Thu Jan 23 13:44:10 2014 +0000

os/os_thread: Revert pipe_barrier pre-processing logic.

Whitelist platforms instead of blacklisting, as several pthread
implementations are missing pthread_barrier_t, in particular MacOSX.

---

 src/gallium/auxiliary/os/os_thread.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/gallium/auxiliary/os/os_thread.h b/src/gallium/auxiliary/os/os_thread.h
index 1d802d2..ff46a89 100644
--- a/src/gallium/auxiliary/os/os_thread.h
+++ b/src/gallium/auxiliary/os/os_thread.h
@@ -130,7 +130,7 @@ typedef cnd_t pipe_condvar;
  * pipe_barrier
  */
 
-#if defined(HAVE_PTHREAD) && !defined(PIPE_OS_ANDROID)
+#if (defined(PIPE_OS_LINUX) || defined(PIPE_OS_BSD) || defined(PIPE_OS_SOLARIS) || defined(PIPE_OS_HURD)) && !defined(PIPE_OS_ANDROID)
 
 typedef pthread_barrier_t pipe_barrier;