[all-commits] [llvm/llvm-project] 6684a0: [Driver] Add the --gcc-triple option (#73214)

[Tom Stellard via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 6684a09ca84b44f320052a77cb01cb4216e6511b
      https://github.com/llvm/llvm-project/commit/6684a09ca84b44f320052a77cb01cb4216e6511b
  Author: Tom Stellard <tstellar at redhat.com>
  Date:   2024-01-08 (Mon, 08 Jan 2024)

  Changed paths:
    M clang/include/clang/Driver/Options.td
    M clang/lib/Driver/ToolChains/Gnu.cpp
    A clang/test/Driver/Inputs/fedora_39_tree/usr/lib/gcc/x86_64-linux-gnu/13/crtbegin.o
    A clang/test/Driver/Inputs/fedora_39_tree/usr/lib/gcc/x86_64-linux-gnu/13/crtend.o
    A clang/test/Driver/Inputs/fedora_39_tree/usr/lib/gcc/x86_64-linux-gnu/13/crti.o
    A clang/test/Driver/Inputs/fedora_39_tree/usr/lib/gcc/x86_64-linux-gnu/13/crtn.o
    A clang/test/Driver/Inputs/fedora_39_tree/usr/lib/gcc/x86_64-redhat-linux/13/crtbegin.o
    A clang/test/Driver/Inputs/fedora_39_tree/usr/lib/gcc/x86_64-redhat-linux/13/crtend.o
    A clang/test/Driver/Inputs/fedora_39_tree/usr/lib/gcc/x86_64-redhat-linux/13/crti.o
    A clang/test/Driver/Inputs/fedora_39_tree/usr/lib/gcc/x86_64-redhat-linux/13/crtn.o
    A clang/test/Driver/gcc-triple.cpp

  Log Message:
  -----------
  [Driver] Add the --gcc-triple option (#73214)

When --gcc-triple is used, the driver will search for the 'best' gcc
installation that has the given triple. This is useful for distributions
that want clang to use a specific gcc triple, but do not want to pin to
a specific version as would be required by using --gcc-install-dir.
Having clang linked to a specific gcc version can cause clang to stop
working when the version of gcc installed on the system gets updated.