From a77eaeb1e6e2d617361bcc92e9766b708854c757 Mon Sep 17 00:00:00 2001
From: Daniel Dunbar <daniel@zuster.org>
Date: Thu, 3 Sep 2009 04:54:28 +0000
Subject: Add basic support for -pthread.  - Patch by David Chisnall, with PCH
 and Darwin support mixed in.

llvm-svn: 80883
---
 clang/lib/Basic/Targets.cpp | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'clang/lib/Basic/Targets.cpp')

diff --git a/clang/lib/Basic/Targets.cpp b/clang/lib/Basic/Targets.cpp
index 305ca2d8d26..d9cd42c3232 100644
--- a/clang/lib/Basic/Targets.cpp
+++ b/clang/lib/Basic/Targets.cpp
@@ -102,6 +102,9 @@ static void getDarwinDefines(std::vector<char> &Defs, const LangOptions &Opts) {
     Define(Defs, "__STATIC__");
   else
     Define(Defs, "__DYNAMIC__");
+
+  if (Opts.POSIXThreads)
+    Define(Defs, "_REENTRANT", "1");
 }
 
 static void getDarwinOSXDefines(std::vector<char> &Defs,
@@ -272,6 +275,8 @@ protected:
     DefineStd(Defs, "linux", Opts);
     Define(Defs, "__gnu_linux__");
     Define(Defs, "__ELF__", "1");
+    if (Opts.POSIXThreads)
+      Define(Defs, "_REENTRANT", "1");
   }
 public:
   LinuxTargetInfo(const std::string& triple) 
@@ -290,6 +295,8 @@ protected:
     Define(Defs, "__NetBSD__", "1");
     Define(Defs, "__unix__", "1");
     Define(Defs, "__ELF__", "1");
+    if (Opts.POSIXThreads)
+      Define(Defs, "_POSIX_THREADS", "1");
   }
 public:
   NetBSDTargetInfo(const std::string &triple) 
@@ -309,6 +316,8 @@ protected:
     Define(Defs, "__OpenBSD__", "1");
     DefineStd(Defs, "unix", Opts);
     Define(Defs, "__ELF__", "1");
+    if (Opts.POSIXThreads)
+      Define(Defs, "_POSIX_THREADS", "1");
   }
 public:
   OpenBSDTargetInfo(const std::string &triple) 
-- 
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