[libcxx-commits] [PATCH] D144734: [libcxx] Enable support for static and debug Windows runtimes

[Andrew Ng via Phabricator via libcxx-commits]

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Add initial support to enable use of /MT, /MTd and /MDd when building
and testing libc++ on Windows. For the shared DLL version of libc++
always use the DLL runtime because this is the only sensible choice.

libc++ now depends on c++experimental and therefore the libc++ DLL
requires a c++experimental DLL. Because of the cyclic dependencies
between these, a "stub" c++experimental DLL is built to create an import
lib which enables the libc++ DLL to be built first.

Testing on Windows requires compiler-rt builtins.

For testing with the debug runtimes, the CRT debug report mode must be
set to output to stderr to avoid the interactive pop-up dialog.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D144734

Files:
  libcxx/CMakeLists.txt
  libcxx/include/__format/format_error.h
  libcxx/src/CMakeLists.txt
  libcxx/src/format.cpp
  libcxx/test/configs/llvm-libc++-shared-clangcl.cfg.in
  libcxx/test/configs/llvm-libc++-static-clangcl.cfg.in
  libcxx/test/std/experimental/memory/memory.resource.global/new_delete_resource.pass.cpp
  libcxx/test/support/set_windows_crt_report_mode.h
  libcxx/utils/libcxx/test/features.py
  libcxx/utils/libcxx/test/params.py

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