From 99c6716432e11c9fba28dbdc76e078e4ca7c69b5 Mon Sep 17 00:00:00 2001
From: danglin <danglin@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Wed, 12 Dec 2012 13:06:53 +0000
Subject: 	* mmapio.c: Define MAP_FAILED if not defined.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@194443 138bc75d-0d04-0410-961f-82ee72b054a4
---
 libbacktrace/ChangeLog | 4 ++++
 libbacktrace/mmapio.c  | 4 ++++
 2 files changed, 8 insertions(+)

diff --git a/libbacktrace/ChangeLog b/libbacktrace/ChangeLog
index b2adcb1715f..9cc767b936b 100644
--- a/libbacktrace/ChangeLog
+++ b/libbacktrace/ChangeLog
@@ -1,3 +1,7 @@
+2012-12-12  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
+
+	* mmapio.c: Define MAP_FAILED if not defined.
+
 2012-12-11  Jakub Jelinek  <jakub@redhat.com>
 
 	PR bootstrap/54926
diff --git a/libbacktrace/mmapio.c b/libbacktrace/mmapio.c
index ca8d75de60d..96cc93ab764 100644
--- a/libbacktrace/mmapio.c
+++ b/libbacktrace/mmapio.c
@@ -40,6 +40,10 @@ POSSIBILITY OF SUCH DAMAGE.  */
 #include "backtrace.h"
 #include "internal.h"
 
+#ifndef MAP_FAILED
+#define MAP_FAILED ((void *)-1)
+#endif
+
 /* This file implements file views and memory allocation when mmap is
    available.  */
 
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