D328: setup: Fix installing in a mingw environment

[quark (Jun Wu)]

quark added a comment.


  @glandium `phabsend` verifies the tags with old versions on Phabricator (so it requires obsstore to work properly). After https://phab.mercurial-scm.org/D122, it will be possible to `phabsend --amend` and `phabsend` will use the commit message to update corresponding diffs.

REPOSITORY
  rHG Mercurial

REVISION DETAIL
  https://phab.mercurial-scm.org/D328

To: glandium, #hg-reviewers, quark
Cc: quark, mercurial-devel