Re: Version of package fontforge

[Ricardo Wurmus <rekado@elephly.net>]

Hi Tilman,

> when I tried to compile lilypond, I had some problems with the package
> fontforge. In Guix it is listed as version 20190317, but when I do "fontforge
> --version", i get:
>
> Copyright (c) 2000-2018 by George Williams. See AUTHORS for Contributors.
>  License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
>  with many parts BSD <http://fontforge.org/license.html>;;. Please read LICENSE.
>  Based on sources from 00:00 UTC  1-Jan-1970-ML-D.
>  Based on source from git with hash:
> fontforge 00:00 UTC  1-Jan-1970
> libfontforge 19700101

We may need to patch fontforge.  The version is derived from the current
date at build time:

    fontforge-20190317/configure.ac:FONTFORGE_VERSIONDATE="$(date -u $FONTFORGE_DATE_OPTS +'%Y%m%d')"
    fontforge-20190317/configure:#define FONTFORGE_VERSIONDATE_RAW $FONTFORGE_VERSIONDATE

And that’s what’s used in fontforge-20190317/fontforge/start.c.

We don’t run “date” during the configuration; during builds
SOURCE_DATE_EPOCH is set:

    fontforge-20190317/configure.ac:FONTFORGE_DATE_NOW=${SOURCE_DATE_EPOCH:-$(date +'%s')}

We may need to patch fontforge so that these values are properly defined.

--
Ricardo