Upstream `Fontship` can modify the timestamps of file placed in a `git`
repository. This feature is brought from the `git-warp-time` Rust package.
For now, the `Fontship` Debian package is not built against this Rust package.

Otherwise, a patch is applied to circumvent git operations through environment.
This patch makes `Fontship` usable when the font sources are not (fully)
tracked in a git repository. When the FONTSHIP_GIT_VERSION environment variable
is set, `Fontship`:
	(i)   uses it as the version string instead of deriving one from the git
	      repository;
	(ii)  scans the sourcedir on the filesystem instead of the git index;
	(iii) treat the given version as a tagged release so no git commit SHA1
	      is embedded;
  (iv)  skip the git cleanliness checks (`abort_if_not_clean`,
	      the `last-commit` stamp), and let `clean` remove the build outputs
	      instead of running `git clean`.
Thanks to Bastian Germann <bage@debian.org> for providing this patch.

 -- Jerome Benoit <calculus@rezozer.net>  Sat, 29 Aug 2026 09:57:19 +0000
