[libcxx-commits] [PATCH] D153832: [libc++][Modules] std.functional.__functional.invoke and std.type_traits.underlying_type can't export std.type_traits

[Ian Anderson via Phabricator via libcxx-commits]

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__functional/invoke.h currently only includes __type_traits/invoke.h and not all of type_traits. Keep it using the specific header, and update its export. Similarly, __type_traits/underlying_type.h currently only includes __type_traits/is_enum.h, so update its export as well. This requires adding lots of export statements to the module map to keep the transitive includes working. Adding direct includes to the headers fixes check-cxx, but leaves many `run-buildbot generic-modules` tests failing, some even with linker errors.

Add a tool to print the include paths from one header/source to a target header file to assist in adding the necessary chain of exports.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D153832

Files:
  libcxx/include/module.modulemap.in
  libcxx/utils/find_transitive_includes.py

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