Revert "[libcxx] Never use <cassert> within libc++"
This reverts commit r292883. Unfortunately <string_view> uses
_LIBCPP_ASSERT in a way which is not compatible with the C++11 dylib
build. I'll investigate more tomorrow.
llvm-svn: 292923
diff --git a/libcxx/include/__threading_support b/libcxx/include/__threading_support
index 35b6196..13ab769b 100644
--- a/libcxx/include/__threading_support
+++ b/libcxx/include/__threading_support
@@ -25,6 +25,7 @@
# include <pthread.h>
# include <sched.h>
#elif defined(_LIBCPP_HAS_THREAD_API_WIN32)
+#include <assert.h>
#include <Windows.h>
#include <process.h>
#include <fibersapi.h>