From b138037b266487e79c729d9daae94ed31b93e550 Mon Sep 17 00:00:00 2001
From: Christopher Ferris <cferris@google.com>
Date: Fri, 9 May 2014 11:04:09 -0700
Subject: [PATCH] Fix mac build.

Forward declare ucontext_t so that it's not necessary for ucontext.h
to be included in the global header.

Change-Id: Ic13677dd572ab1acd927f0a17b284f9b417a642f
---
 include/backtrace/Backtrace.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/include/backtrace/Backtrace.h b/include/backtrace/Backtrace.h
index 561dfeb90..84b5631de 100644
--- a/include/backtrace/Backtrace.h
+++ b/include/backtrace/Backtrace.h
@@ -19,7 +19,6 @@
 
 #include <inttypes.h>
 #include <stdint.h>
-#include <ucontext.h>
 
 #include <string>
 #include <vector>
@@ -48,6 +47,9 @@ struct backtrace_frame_data_t {
 // Forward declarations.
 class BacktraceImpl;
 
+struct ucontext;
+typedef ucontext ucontext_t;
+
 class Backtrace {
 public:
   // Create the correct Backtrace object based on what is to be unwound.