[PATCH] D68055: Add -fgnuc-version= to control __GNUC__ and other GCC macros

[Reid Kleckner via Phabricator via cfe-commits]

rnk updated this revision to Diff 224141.
rnk added a comment.

- add docs, release note
- keep __EXCEPTIONS if !ms
- keep __private_extern__ if !ms
- set __GNUG__ value with flag


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D68055/new/

https://reviews.llvm.org/D68055

Files:
  clang/docs/ReleaseNotes.rst
  clang/docs/UsersManual.rst
  clang/include/clang/Basic/LangOptions.def
  clang/include/clang/Driver/Options.td
  clang/lib/Driver/ToolChains/Clang.cpp
  clang/lib/Frontend/CompilerInvocation.cpp
  clang/lib/Frontend/InitPreprocessor.cpp
  clang/test/Driver/fgnuc-version.c
  clang/test/Driver/rewrite-legacy-objc.m
  clang/test/Driver/rewrite-objc.m
  clang/test/Frontend/gnu-inline.c
  clang/test/Headers/stdbool.cpp
  clang/test/Preprocessor/init.c
  clang/test/Sema/atomic-ops.c
  clang/test/SemaCXX/cxx2a-destroying-delete.cpp

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