[libcxx-commits] [PATCH] D127127: [libc++] Fix modules builds when features are removed

[Louis Dionne via Phabricator via libcxx-commits]

ldionne created this revision.
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ldionne requested review of this revision.
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When some headers are not available because we removed features like
localization or threads, the compiler should not try to include these
headers when building modules. To avoid that from happening, add a
requires-declaration that is never satisfied when the configuration
in use doesn't support a header.

rdar://93777687


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D127127

Files:
  libcxx/docs/Contributing.rst
  libcxx/include/CMakeLists.txt
  libcxx/include/csignal
  libcxx/include/module.modulemap
  libcxx/include/module.modulemap.in
  libcxx/test/libcxx/lint/lint_headers.sh.py
  libcxx/test/libcxx/lint/lint_modulemap.sh.py
  libcxx/test/libcxx/modules_include.sh.cpp
  libcxx/utils/generate_header_tests.py
  libcxx/utils/libcxx/test/dsl.py
  libcxx/utils/libcxx/test/features.py

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