From mboxrd@z Thu Jan  1 00:00:00 1970
From: "pelzflorian (Florian Pelz)" <pelzflorian@pelzflorian.de>
Subject: install --with-version?
Date: Thu, 2 May 2019 17:44:30 +0200
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Hello!

I wanted to install biber 2.10 but Guix has and never had a package
for it (I think).  So I think of rewriting the existing package.

I see no --with-version option for `guix build`.

I tried

guix environment --ad-hoc -e '(begin (use-modules (guix packages) (gnu pa=
ckages tex)) (package (inherit biber) (version "2.10")))'

but it still uses the source for the current biber 2.12 instead of
biber 2.10.  I suppose Guix=E2=80=99 record implementation is =E2=80=9Chy=
gienic=E2=80=9D and
never refers to a changed version.

What to do?

Regards,
Florian