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[libcxx] Tired of colorless compile errors? Enable color diagnostics today!

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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
This commit is contained in:
Eric Fiselier
2015-02-18 17:39:45 +00:00
parent ceead9c855
commit cc3ea928ae
2 changed files with 30 additions and 0 deletions
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10
www/lit_usage.html
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@@ -192,6 +192,16 @@ was given when building libc++ then that sanitizer will be used by default.
</blockquote>
</p>
<p>
<h3 class="lit-option">color_diagnostics</h3>
<blockquote class="lit-option-desc">
Enable the use of colorized compile diagnostics. If the
<code>color_diagnostics</code> option is specified or the enviroment variable
<code>LIBCXX_COLOR_DIAGNOSTICS</code> is present then color diagnostics will be
enabled.
</blockquote>
</p>
</div>
</body>
</html>