From 371e5d273f616c0c83a5fe41b0c21510ee4e4f14 Mon Sep 17 00:00:00 2001
From: Daniel Sloof <goapsychadelic@gmail.com>
Date: Thu, 26 Jun 2014 23:07:08 +0200
Subject: [PATCH] fix folly build on OSX and BSD

A recent change in folly/MemoryMapping.cpp uses MAP_ANONYMOUS, which is
named MAP_ANON on OSX/BSD.
---
 folly/MemoryMapping.cpp | 1 +
 folly/Portability.h     | 6 ++++++
 2 files changed, 7 insertions(+)

diff --git a/folly/MemoryMapping.cpp b/folly/MemoryMapping.cpp
index 17f06be3ba6..a6ad326a093 100644
--- a/folly/MemoryMapping.cpp
+++ b/folly/MemoryMapping.cpp
@@ -16,6 +16,7 @@
 
 #include "folly/MemoryMapping.h"
 #include "folly/Format.h"
+#include "folly/Portability.h"
 
 #ifdef __linux__
 #include "folly/experimental/io/HugePages.h"
diff --git a/folly/Portability.h b/folly/Portability.h
index 68d7d969e9d..1a129ca1ccf 100644
--- a/folly/Portability.h
+++ b/folly/Portability.h
@@ -34,6 +34,12 @@
  #endif
 #endif
 
+#ifndef MAP_ANONYMOUS
+ #include <sys/mman.h>
+ #ifdef MAP_ANON
+  #define MAP_ANONYMOUS MAP_ANON
+ #endif
+#endif
 
 // MaxAlign: max_align_t isn't supported by gcc
 #ifdef __GNUC__