[Issue 18658] New: Provide GNUmake for easier development setup

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=18658

          Issue ID: 18658
           Summary: Provide GNUmake for easier development setup
           Product: D
           Version: D2
          Hardware: All
                OS: Windows
            Status: NEW
          Severity: enhancement
          Priority: P1
         Component: installer
          Assignee: nobody at puremagic.com
          Reporter: greensunny12 at gmail.com

People are having quite some troubles on running the DMD test suite on Windows,
e.g.

- https://forum.dlang.org/post/tulbhulbeqqzofdxevcg@forum.dlang.org
- https://forum.dlang.org/post/gxxfmrnezfrlodlhpiwe@forum.dlang.org

or 18413

So it might be a good idea to integrate GNUmake optionally in the installer
(like e.g. dmc is).

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