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[libc++] Error if someone tries to use MSVC and tell them to contact the libc++ developers 

Nobody knows if there are users of libc++ with MSVC. Let's try to find that out and encourage them to upstream their changes to make that configuration work.

Reviewed By: ldionne, #libc

Spies: libcxx-commits

Differential Revision: https://reviews.llvm.org/D129055
This commit is contained in:
Nikolas Klauser 2022-07-04 03:07:26 +02:00
parent 728217cd60
commit 64d63f4823
1 changed files with 6 additions and 0 deletions
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6
libcxx/include/__config
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@ -214,6 +214,12 @@
# error "libc++ only supports C++03 with Clang-based compilers. Please enable C++11"
# endif
# ifdef _LIBCPP_COMPILER_MSVC
# error If you successfully use libc++ with MSVC please tell the libc++ developers and consider upstreaming your \
changes. We are not aware of anybody using this configuration and know that at least some code is currently broken. \
If there are users of this configuration we are happy to provide support.
# endif
// FIXME: ABI detection should be done via compiler builtin macros. This
// is just a placeholder until Clang implements such macros. For now assume
// that Windows compilers pretending to be MSVC++ target the Microsoft ABI,