From 39687b93fa5bd0eec8d39c3223a2b71da6341793 Mon Sep 17 00:00:00 2001
From: Chris Bieneman <beanz@apple.com>
Date: Fri, 30 Jan 2015 00:10:39 +0000
Subject: [PATCH] iOS doesn't have crt_externs.h available, so we fall back to
 the posix method.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227521 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Support/Unix/Program.inc | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/lib/Support/Unix/Program.inc b/lib/Support/Unix/Program.inc
index 0f45df1a0da..2ed5597e4ad 100644
--- a/lib/Support/Unix/Program.inc
+++ b/lib/Support/Unix/Program.inc
@@ -42,7 +42,10 @@
 #define  _RESTRICT_KYWD
 #endif
 #include <spawn.h>
-#if !defined(__APPLE__)
+#if defined(__APPLE__)
+#include <TargetConditionals.h>
+#endif
+#if !defined(__APPLE__) || defined(TARGET_OS_IPHONE)
   extern char **environ;
 #else
 #include <crt_externs.h> // _NSGetEnviron
@@ -217,7 +220,7 @@ static bool Execute(ProcessInfo &PI, StringRef Program, const char **args,
     }
 
     if (!envp)
-#if !defined(__APPLE__)
+#if !defined(__APPLE__) || defined(TARGET_OS_IPHONE)
       envp = const_cast<const char **>(environ);
 #else
       // environ is missing in dylibs.