Mesa (master): auxiliary/os: Add missing signal.h include.

[Jose Fonseca]

Module: Mesa
Branch: master
Commit: 0ad0bc5af5679c1ea669a768449bec3fd67fdd74
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=0ad0bc5af5679c1ea669a768449bec3fd67fdd74

Author: Baldo Davide <baldosoft at gmail.com>
Date:   Sat May  5 04:50:19 2012 +0100

auxiliary/os: Add missing signal.h include.

The signal.h include was missed in the commit
bc16c73407d11bb6702cf7de9925bfaeb80a5272 which leads to broken
compilations under Linux.

Signed-off-by: José Fonseca <jose.r.fonseca at gmail.com>

---

 src/gallium/auxiliary/os/os_thread.h |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/src/gallium/auxiliary/os/os_thread.h b/src/gallium/auxiliary/os/os_thread.h
index 3e1c273..3773be9 100644
--- a/src/gallium/auxiliary/os/os_thread.h
+++ b/src/gallium/auxiliary/os/os_thread.h
@@ -44,6 +44,7 @@
 
 #include <pthread.h> /* POSIX threads headers */
 #include <stdio.h> /* for perror() */
+#include <signal.h>
 
 
 /* pipe_thread