[all-commits] [llvm/llvm-project] 2497d5: Define _GNU_SOURCE for arm baremetal in C++ mode.

[m-gupta via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 2497d5aa7716a664c4f73df1980b026c906c7522
      https://github.com/llvm/llvm-project/commit/2497d5aa7716a664c4f73df1980b026c906c7522
  Author: Manoj Gupta <manojgupta at google.com>
  Date:   2022-11-03 (Thu, 03 Nov 2022)

  Changed paths:
    M clang/lib/Basic/Targets/ARM.cpp
    M clang/test/Preprocessor/init-arm.c

  Log Message:
  -----------
  Define _GNU_SOURCE for arm baremetal in C++ mode.

This matches other C++ drivers e.g. Linux that define
_GNU_SOURCE. This lets clang compiler more code by default
without explicitly passing _GNU_SOURCE on command line.

Reviewed By: MaskRay

Differential Revision: https://reviews.llvm.org/D136712