[crosstool-ng/crosstool-ng] 349be0: Allow to override build date

[crosstool-ng/crosstool-ng] 349be0: Allow to override build date

[Alexey Neyman]

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  Branch: refs/heads/master
  Home:   https://github.com/crosstool-ng/crosstool-ng
  Commit: 349be05ee5cbfd680955d19a9ec2df72966399b4
      https://github.com/crosstool-ng/crosstool-ng/commit/349be05ee5cbfd680955d19a9ec2df72966399b4
  Author: Bernhard M. Wiedemann <bwiedemann@suse.de>
  Date:   2017-07-21 (Fri, 21 Jul 2017)

  Changed paths:
    M configure.ac

  Log Message:
  -----------
  Allow to override build date

in order to make builds reproducible.
See https://reproducible-builds.org/ for why this is good
and https://reproducible-builds.org/specs/source-date-epoch/
for the definition of this variable.

This date call is designed to work with both GNU date and BSD date.


  Commit: b8c5b2cf27e1933cc51d066afa83bc66529b5db6
      https://github.com/crosstool-ng/crosstool-ng/commit/b8c5b2cf27e1933cc51d066afa83bc66529b5db6
  Author: Bernhard M. Wiedemann <bwiedemann@suse.de>
  Date:   2017-07-21 (Fri, 21 Jul 2017)

  Changed paths:
    M Makefile.in

  Log Message:
  -----------
  use gzip -n

to not record timestamps in .gz file headers
to make build reproducible


  Commit: 2ebbd3e3183ed18d13884ba6d30df09d16078fd0
      https://github.com/crosstool-ng/crosstool-ng/commit/2ebbd3e3183ed18d13884ba6d30df09d16078fd0
  Author: Alexey Neyman <stilor@att.net>
  Date:   2017-09-18 (Mon, 18 Sep 2017)

  Changed paths:
    M Makefile.in
    M configure.ac

  Log Message:
  -----------
  Merge pull request #784 from bmwiedemann/date

Allow for reproducible builds


Compare: https://github.com/crosstool-ng/crosstool-ng/compare/aacd6f3b4a55...2ebbd3e3183e