https://issues.dlang.org/show_bug.cgi?id=20681

          Issue ID: 20681
           Summary: mak/WINDOWS file looks as error prone
           Product: D
           Version: D2
          Hardware: x86_64
                OS: Windows
            Status: NEW
          Severity: minor
          Priority: P1
         Component: druntime
          Assignee: nobody@puremagic.com
          Reporter: feklushkin.denis@gmail.com

mak/WINDOWS contains tons of copy'n'pasted and slightly changed code.

I’m not sure if this is normal for makefiles, I don’t know make very well. But in using it is inconvenient.

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