http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47055

           Summary: "make profiledbootstrap" fails on MSYS/mingw-w64
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: bootstrap
        AssignedTo: unassig...@gcc.gnu.org
        ReportedBy: vanboxem.ru...@gmail.com


When doing a "make profiledbootstrap", there are two things that go wrong:

1. All "mkdir" commands contain "/<DriveLetter>:\<restofpath>" and fail.
Example
>profiling:/M:\Development\msys\home\Ruben\mingw64\build64\gcc\libiberty/pex-common.gcda:Skip
>profiling:/M::Cannot create directory

2. Random errors (which are caused by #1?) make the stage profile fail.

Doing a normal "make" (which does the stage 1, 2, and 3 + compare 2=?3) works
as expected.

MSYS can handle "m:/path/to/file" and "/m/path/to/file" and any mix of capitals
and non-capitals. It can't however, handle "/m:/path/to/file", which is a mix
of the two.

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