[PATCH] Support case insensitive header searches for MSVCCompat

[David Majnemer]

Modulo needing some style fixes, this looks fine. However, I'd prefer
for @rsmith look at this at least to make sure it plays nice with modules.

On Wed Mar 05 2014 at 1:18:22 PM, Nico Weber <thakis at chromium.org> wrote:

> The compiler won't be the only place with issues like this though, no? Say
> you have a generated header "header.h" and some file accidentally includes
> it as "Header.h", then the build system now won't have a correct dependency
> edge. There's probably more examples.
>
> Can't you just create a case-insensitive file system even in cross mode?
>
>
> On Wed, Mar 5, 2014 at 1:13 PM, Saleem Abdulrasool <abdulras at fb.com>wrote:
>
>>
>>   One of the nice things about clang is that it is inherently a
>> cross-compiler :-).  Not all file systems are case-insensitive, and
>> unfortunately, as I mentioned in the commit message, the Windows SDK does
>> get the case wrong in many cases.  This is an attempt to make the
>> cross-compiler work properly with MS compatibility irrespective of the
>> environment where it is being executed.
>>
>> http://llvm-reviews.chandlerc.com/D2972
>>
>
>
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