cc3ea928ae
Summary: This patch adds a lit option to enable color diagnostics when either `--param=color_diagnostics` is passed to LIT or `LIBCXX_COLOR_DIAGNOSTICS` is present in the environment. My only concern with this patch is that GCC and Clang take different flags and that only GCC 4.9 and greater support `-fdiagnostics-color=always` Does anybody have objections to this going in? Reviewers: jroelofs, danalbert Reviewed By: danalbert Subscribers: cfe-commits Differential Revision: http://reviews.llvm.org/D7729 git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@229707 91177308-0d34-0410-b5e6-96231b3b80d8