[Pkg-gmagick-im-team] Bug#783933: imagemagick: please make the build reproducible

[Reiner Herrmann]

Source: imagemagick
Version: 8:6.8.9.9-5
Severity: wishlist
Tags: patch
User: reproducible-builds at lists.alioth.debian.org
Usertags: timestamps
X-Debbugs-CC: reproducible-builds at lists.alioth.debian.org

Hi!

While working on Debian's “reproducible builds” effort [1], we have
noticed that imagemagick doesn't build reproducibly.

There are two issues with the build:
- PNG icons contain timestamps in their metadata
- The release date, which is used in ImageMagick's source, is using the system time

The two attached patches fix those issues.
One prevents convert from embedding timestamps into the icons, the other uses
the latest upstream ChangeLog entry for the PACKAGE_RELEASE_DATE (similar to
PACKAGE_CHANGE_DATE).

Regards,
 Reiner

[1]: https://wiki.debian.org/ReproducibleBuilds

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