Provide a way to disable use of extern templates in libc++. This is intended for the clients of libc++, not the libc++ build. The dylib should always contain the extern templates. To disable the client needs to put -D'_LIBCPP_EXTERN_TEMPLATE(...)=' on the command line. git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@167486 91177308-0d34-0410-b5e6-96231b3b80d8 
diff --git a/include/vector b/include/vector index ee71435..0c28068 100644 --- a/include/vector +++ b/include/vector 
@@ -313,7 +313,7 @@  #pragma warning( push )  #pragma warning( disable: 4231 )  #endif // _MSC_VER -extern template class __vector_base_common<true>; +_LIBCPP_EXTERN_TEMPLATE(class __vector_base_common<true>)  #ifdef _MSC_VER  #pragma warning( pop )  #endif // _MSC_VER