On 2022-07-04, Ludovic Courtès wrote:
> Vagrant Cascadian <vagrant@reproducible-builds.org> skribis:
>> --- a/gnu/packages/tex.scm
>> +++ b/gnu/packages/tex.scm
>> @@ -395,6 +395,12 @@ (define-public texlive-bin
>>                       (("srcdir/tests/pprecA-0.ind pprecA-0.ind1 \\|\\| exit 1")
>>                        "srcdir/tests/pprecA-0.ind pprecA-0.ind1 || exit 77")))))
>>               '())
>> +         (add-after 'unpack 'default-to-force-source-date
>> +           ;; https://lists.gnu.org/archive/html/guix-devel/2022-06/msg00330.html
>> +           (lambda _
>> +             ;; texk/web2c/lib/texmfmp.c:  string sde_texprim = getenv ("FORCE_SOURCE_DATE");
>> +             (substitute* "texk/web2c/lib/texmfmp.c"
>> +                (("getenv ..FORCE_SOURCE_DATE..") "1"))))
>
> That looks reasonable to me.  Let us know how your testing goes!

Reasonable, perhaps, but it failed to actually work when I tried it last
month...

Will give it another shot with fresh eyes, although if anyone else wants
to give it a shot, that would be nice too! :)

live well,
  vagrant