bug#41387: "Building from Git" on foreign distro starting with NO guix?

[Julien Lepiller]

Le 18 mai 2020 23:07:42 GMT-04:00, Bengt Richter <address@hidden> a écrit :
>Hi,
>
>[~/wb/guix110git/guix]$ ./configure --prefix=$(realpath ./mybuild)
>checking for a BSD-compatible install... /usr/bin/install -c
>checking whether build environment is sane... yes
>...
>...
>checking pkg-config is at least version 0.9.0... yes
>configure: checking for guile 3.0
>configure: checking for guile 2.2
>configure: found guile 2.2
>checking for guile-2.2... /usr/bin/guile-2.2
>checking for Guile version >= 2.2... 2.2.4
>checking for guild-2.2... /usr/bin/guild-2.2
>checking for guile-config-2.2... /usr/bin/guile-config-2.2
>checking for GUILE... yes
>checking if (gnutls) is available... no
>configure: error: The Guile bindings of GnuTLS are missing; please
>install them.
>--8<---------------cut here---------------end--------------->8---
>
>Well, it was looking for guile 3.0 and my foreign distro only has 2.2.4
>--8<---------------cut here---------------start------------->8---
>guile (GNU Guile) 2.2.4
>Packaged by Debian (2.2.4-deb+1-2)
>Copyright (C) 2018 Free Software Foundation, Inc.
>--8<---------------cut here---------------end--------------->8---
>which it seemed ok with, but I don't seem to be able get my distro's
>GnuTLS
>hooked up with this installation procedure, and suspect a GnuTLS/Guile
>version
>mismatch problem or such, but then I ran out of enthusiasm :)

As you can see, configure looks for guile 3.0, fails and falls back to guile 
2.2, which it finds as /usr/bin/guile-2.2.

Gnutls provides guile bindings, but they are not necessarily built by your 
distribution. From my experiments with debian/hurd, the bindings were not 
present, so probably the same with debian/linux? You'll probably have to 
checkout gnutls and build the bindings.

The configure script only checks that the guile it found (your 2.2) can load 
the (gnutls) module, so there cannot be a version mismatch, unless debian built 
the gnutls module with guile 3.0. Check with your distribution what files are 
installed with the gnutls package. There should be some in /usr/lib/guile/.

You'll need to look at the dependencies, some of them are probably not provided 
by debian yet. I remember some discussions about creating a debian package of 
guix. If this was accepted, then the dependencies must be available at least in 
unstable. You might want to check.

>I thought maybe I could cheat and find a path into the cloned repo,
>since
>all the magic has to be there somehow, but that way seems pretty
>kludgey.
>
>Any help past this GnuTLS obstacle is welcome!
>
>BTW, could I check out at a commit prior to the guile3 introduction
>so that my distro might have a matching GnuTLS for that?
>If so, which commit would be best?
>
>In the meanwhile, back to hacking guix-install.sh :)
>
>Thanks for reading.
>
>--
>Regards,
>Bengt Richter