[PATCH] D86359: [llvm-libtool-darwin] Add support for -V option

[Shoaib Meenai via Phabricator via llvm-commits]

smeenai created this revision.
smeenai added reviewers: alexshap, jhenderson, MaskRay, sameerarora101.
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The -V option in cctools' libtool prints out the version number and
performs any specified operation. Add this option to LLVM's version.
cctools is more forgiving of invalid command lines when -V is specified,
but I think it's better to give errors instead of silently producing no
output.

Unfortunately, when -V is present, options that would otherwise be
required aren't anymore, so we need to perform some manual argument
validation.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D86359

Files:
  llvm/test/tools/llvm-libtool-darwin/invalid-input-output-args.test
  llvm/test/tools/llvm-libtool-darwin/missing-library-type.test
  llvm/test/tools/llvm-libtool-darwin/version.test
  llvm/tools/llvm-libtool-darwin/llvm-libtool-darwin.cpp

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