[PATCH] Fix dependency file escaping

[Nico Weber]

On Fri, May 8, 2015 at 4:01 PM, Paul Robinson <
Paul_Robinson at playstation.sony.com> wrote:

> In http://reviews.llvm.org/D9208#169446, @thakis wrote:
>
> > Does gcc intend to fix this soon? Isn't being compatible with gcc
> important
> >  than the other things?
>
>
> If gcc emitted an incorrect relocation, would you argue that it's
> important to be compatible with gcc?  Even if you could not point to any
> linker that handled that buggy relocation in a reasonable way?
>

'course not, but that's not the case here. If a program (say, ninja) tries
to be compatible with gnu make's depfile parsing, it would previously
convert "\ " to a space from what I understand. Now it's going to get "\\\
" and think that that's "\ ". So this is breaking backwards compat of clang
with itself.
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