From ec7abcdf68009f00c51fc6e2ab8ec6408b786b15 Mon Sep 17 00:00:00 2001
From: Antony Polukhin <antoshkka@gmail.com>
Date: Mon, 26 Dec 2016 22:11:23 +0300
Subject: [PATCH] Fixed MacOS examples

---
 example/assert_handler.cpp                        | 1 +
 example/terminate_handler.cpp                     | 7 ++++---
 include/boost/stacktrace/detail/backend_linux.hpp | 1 +
 3 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/example/assert_handler.cpp b/example/assert_handler.cpp
index 4ff928c..8c62f6b 100644
--- a/example/assert_handler.cpp
+++ b/example/assert_handler.cpp
@@ -6,6 +6,7 @@
 
 #define BOOST_ENABLE_ASSERT_HANDLER
 
+#include <cstdlib> // std::exit
 #include <boost/array.hpp>
 BOOST_NOINLINE void foo(int i);
 BOOST_NOINLINE void bar(int i);
diff --git a/example/terminate_handler.cpp b/example/terminate_handler.cpp
index 0d6d27d..c115352 100644
--- a/example/terminate_handler.cpp
+++ b/example/terminate_handler.cpp
@@ -21,8 +21,8 @@ BOOST_NOINLINE void foo(int i) {
     bar(--i);
 }
 
-inline void ignore_exit(int){ std::exit(0); }
-#define _Exit ignore_exit
+// Ignoring _Exit for testing purposes
+#define _Exit(x) exit(x+1)
 
 ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 
@@ -30,6 +30,7 @@ inline void ignore_exit(int){ std::exit(0); }
 
 #include <exception>    // std::set_terminate, std::abort
 #include <signal.h>     // ::signal
+#include <cstdlib>      // std::_Exit
 #include <boost/stacktrace.hpp>
 #include <iostream>     // std::cerr
 
@@ -44,7 +45,7 @@ void my_signal_handler(int signum) {
     if (bt) {
         std::cerr << "Signal " << signum << ", backtrace:\n" << boost::stacktrace::stacktrace() << '\n'; // ``[footnote Strictly speaking this code is not async-signal-safe, because it uses std::cerr. [link boost_stacktrace.build_macros_and_backends Section "Build, Macros and Backends"] describes async-signal-safe backends, so if you will use the noop backend code becomes absolutely valid as that backens always returns 0 frames and `operator<<` will be never called. ]``
     }
-    _Exit(-1);
+    std::_Exit(-1);
 }
 //]
 
diff --git a/include/boost/stacktrace/detail/backend_linux.hpp b/include/boost/stacktrace/detail/backend_linux.hpp
index 124fd8a..8179cb2 100644
--- a/include/boost/stacktrace/detail/backend_linux.hpp
+++ b/include/boost/stacktrace/detail/backend_linux.hpp
@@ -22,6 +22,7 @@
 #endif
 
 #include <dlfcn.h>
+#include <signal.h>
 #include <execinfo.h>
 #include <cstdio>