[PATCH] D40998: [driver][darwin] Take the OS version specified in "-target" as the target OS instead of inferring it from SDK / environment

[Alex Lorenz via Phabricator via cfe-commits]

arphaman updated this revision to Diff 126388.
arphaman marked an inline comment as done.
arphaman added a comment.

Don't warn about the redundant environment variable


Repository:
  rC Clang

https://reviews.llvm.org/D40998

Files:
  lib/Driver/ToolChains/Darwin.cpp
  test/Driver/darwin-version.c
  test/Driver/objc-weak.m
  test/Driver/pic.c
  test/Driver/unavailable_aligned_allocation.cpp

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