[PATCH] D37954: Expand absolute system header paths when using -MD depfiles

[Nico Weber via cfe-commits]

Have you checked how much the additional stat()ing added in this patch
slows down builds?

On Sep 16, 2017 11:49 PM, "Peter Wu via Phabricator via cfe-commits" <
cfe-commits at lists.llvm.org> wrote:

> Lekensteyn added a comment.
>
> I tried to contact Simon (the author of the GCC) patch with a question
> about the -fno-canonical-system-headers, but his Google address is bouncing.
>
> GCC has long survived with doing this by default, I wonder if this option
> could just me omitted, enabling the feature by default.
>
>
> https://reviews.llvm.org/D37954
>
>
>
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