Add -fansi-escape-codes option
Some build systems use pipes for stdin/stderr. On nix-ish platforms colored
output can be forced by -fcolor-diagnostics. On Windows this option has
no effect in these cases because LLVM uses the console API (which only
operates on the console buffer) even if a console wrapper capable of
interpreting ANSI escape codes is used.
The -fansi-escape-codes option allows switching from the console API to
ANSI escape codes. It has no effect on other platforms.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@190464 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/UsersManual.rst b/docs/UsersManual.rst
index 2dc6068..73f6a67 100644
--- a/docs/UsersManual.rst
+++ b/docs/UsersManual.rst
@@ -235,6 +235,11 @@
^
//
+**-fansi-escape-codes**
+ Controls whether ANSI escape codes are used instead of the Windows Console
+ API to output colored diagnostics. This option is only used on Windows and
+ defaults to off.
+
.. option:: -fdiagnostics-format=clang/msvc/vi
Changes diagnostic output format to better match IDEs and command line tools.