[PATCH] D33082: Fix Libc++ build with MinGW64

[Shoaib Meenai via Phabricator via cfe-commits]

smeenai added a comment.

In https://reviews.llvm.org/D33082#754451, @compnerd wrote:

> Sure, a `_LIBCPP_MSVCRT_LIKE` WFM.  I just want to make sure that we don''t conflate the underlying libc implementation with the Win32 API set.


Yup, that was my concern as well.

In https://reviews.llvm.org/D33082#754262, @mati865 wrote:

> I don't know if it is MSYS2 specific or general MinGW issue but liblibc++.a is created. Could you check your build?
>  Here is line to blame: https://github.com/llvm-mirror/libcxx/blob/master/lib/CMakeLists.txt#L246


Sounds like a cmake prefix issue. We should be able to fix this by unconditionally setting `CMAKE_STATIC_LIBRARY_PREFIX` to `lib` instead of changing the output name, I think.


https://reviews.llvm.org/D33082