[PATCH] Allow using ANSI escape sequences on Windows

[Nico Rieck]

On 28.08.2013 23:08, Nico Rieck wrote:
> with ConEmu [1] or ANSICON [2] it is possible to use ANSI escape
> sequences for colors on Windows. This way colored output can be provided
> even when the normal console api cannot be used, e.g. when clang is used
> with ninja.
>
> I don't know of any simple way to detect either of the mentioned hacks
> so for now the environment variable "LLVM_FORCE_ANSI_COLORS" can be set
> to force this behavior.

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