[PATCH] D106316: [clang][darwin] Add support for the -mtargetos= option to the driver

[Alex Lorenz via Phabricator via cfe-commits]

arphaman created this revision.
arphaman added reviewers: steven_wu, Bigcheese.
Herald added subscribers: dang, ributzka.
arphaman requested review of this revision.

The new `-mtargetos=` option is a replacement for the existing, OS-specific options like `-miphoneos-version-min=`. This allows us to introduce support for new darwin OSes easier as they won't require the use of a new option. The older options will be deprecated and the use of the new option will be encouraged instead.

This patch depends on https://reviews.llvm.org/D105960


https://reviews.llvm.org/D106316

Files:
  clang/include/clang/Basic/DiagnosticDriverKinds.td
  clang/include/clang/Driver/Options.td
  clang/lib/Driver/ToolChains/Darwin.cpp
  clang/test/Driver/mtargetos-darwin.c

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