[Issue 23193] New: druntime/win32.mak contains no instructions for how to build druntime

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=23193

          Issue ID: 23193
           Summary: druntime/win32.mak contains no instructions for how to
                    build druntime
           Product: D
           Version: D2
          Hardware: x86
                OS: Windows
            Status: NEW
          Severity: blocker
          Priority: P1
         Component: druntime
          Assignee: nobody at puremagic.com
          Reporter: bugzilla at digitalmars.com

Various things I've tried do not work.

`make -fwin32.mak import`

for example, does not put core/stdc/* into the import directory.

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