[PATCH] D49091: Warn about usage of __has_include/__has_include_next in macro expansions

[Tor Arne Vestbø via Phabricator via cfe-commits]

torarnv added a comment.

https://codereview.qt-project.org/c/qt/qtbase/+/284037 has merged and will be part of Qt 5.14.1

I went with treating them all under one strategy:

  #ifndef __has_foo
  #define __has_foo(x) 0
  #endif

This includes `__has_builtin`, `__has_feature`, `__has_attribute`, `__has_cpp_attribute`, `__has_include`, and `__has_include_next`.


Repository:
  rC Clang

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D49091/new/

https://reviews.llvm.org/D49091