[PATCH] D131310: [llvm-driver] Support single distributions

[Alex Brachet via Phabricator via llvm-commits]

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This adds support for building a separate llvm driver which includes
only `LLVM_DISTRIBUTION_COMPONENTS`. A later patch will follow with
support for multiple distributions.

A distribution including clang, llvm-cxxfilt and lld will look like

  17         clang -> llvm-distribution*
  17         clang++ -> llvm-distribution*
  17         clang-cl -> llvm-distribution*
  17         clang-cpp -> llvm-distribution*
  3          ld64.lld -> lld*
  3          ld.lld -> lld*
  673825408  lld*
  3          lld-link -> lld*
  17         llvm-cxxfilt -> llvm-distribution*
  1244000992 llvm-distribution*
  3          wasm-ld -> lld*

lld is included as an example tool that is not currently part of the
driver build.

The default ninja target will continue to create the `llvm` tool and
it's subcommands continue to link to it.

  4          llvm-cxxfilt -> llvm*
  1263424168 llvm*




https://reviews.llvm.org/D131310

Files:
  clang/cmake/modules/AddClang.cmake
  llvm/cmake/modules/AddLLVM.cmake
  llvm/cmake/modules/LLVMDistributionSupport.cmake
  llvm/tools/CMakeLists.txt
  llvm/tools/llvm-driver/CMakeLists.txt

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