Allow libc++ to be built on systems without POSIX threads
If you're crazy enough to want this sort of thing, then add
-D_LIBCPP_HAS_NO_THREADS to your CXXFLAGS and
--param=additiona_features=libcpp-has-no-threads to your lit commnad line.
http://reviews.llvm.org/D3969
llvm-svn: 217271
Cr-Mirrored-From: sso://chromium.googlesource.com/_direct/external/github.com/llvm/llvm-project
Cr-Mirrored-Commit: b3fcc67f8f13cd95d36ed29d0ae1308decb9e099
diff --git a/src/shared_mutex.cpp b/src/shared_mutex.cpp
index dd78a16..2b78c1f 100644
--- a/src/shared_mutex.cpp
+++ b/src/shared_mutex.cpp
@@ -7,6 +7,9 @@
//
//===----------------------------------------------------------------------===//
+#include "__config"
+#ifndef _LIBCPP_HAS_NO_THREADS
+
#define _LIBCPP_BUILDING_SHARED_MUTEX
#include "shared_mutex"
@@ -99,3 +102,5 @@
_LIBCPP_END_NAMESPACE_STD
+
+#endif // !_LIBCPP_HAS_NO_THREADS