Re: guix package path

[zimoun]

Hi,

On Mon, 19 Dec 2022 at 13:06, Antonio Carlos Padoan Junior 
<acpadoanjr@yahoo.com.br> wrote:

> ~$ guix show -L /home/antonio/git/my-guix sbcl-lispiec
> guix show: error: sbcl-lispiec: package not found
>
> ~$ guix build -L /home/antonio/git/my-guix sbcl-lispiec
> guix build: error: sbcl-lispiec: unknown package

The issue is this snippet:

--8<---------------cut here---------------start------------->8---
(define-public gtklp
  (let ((toolchain (specification->package "clang-toolchain@10")))
    (package-with-c-toolchain gtklp-bad-tool `(("toolchain" ,toolchain)))))
--8<---------------cut here---------------end--------------->8---

and to be precise, it seems ’specification->package’.  If it is removed,
and for example, adding #:use-module (gnu packages llvm) and

--8<---------------cut here---------------start------------->8---
(define-public gtklp
  (let ((toolchain clang-toolchain-10))
    (package
      (inherit
       (package-with-c-toolchain gtklp-bad-tool `(("toolchain" ,toolchain))))
      (name "gtklp-with-clang"))))
--8<---------------cut here---------------end--------------->8---

Then all seems to work.  Therefore, the same should fix
GUIX_PACKAGE_PATH.

Well, I do not know why it does not work as expected.  Maybe an issue
with Guile modules and compilation.


Back to your original issue.  Using
26f397ee26c2da6961a2ef893270ea03986ee55e from master and the channels
file:

--8<---------------cut here---------------start------------->8---
$ cat channels.scm
(list (channel
        (name 'guix)
        (url "https://git.savannah.gnu.org/git/guix.git";)
        (branch "master")
        (commit
          "c8316c1e47ce2ace5474cbcda03555cf915b4fce"))
      (channel
       (name 'mine)
       (url "file:///tmp/my-guix")
       (branch "master")))

$ guix time-machine -C /tmp/channels.scm -- build sbcl-lispiec
/gnu/store/giwpdx5kcwfry3bx2yc90084nkmx7283-sbcl-lispiec-1.0.2
--8<---------------cut here---------------end--------------->8---

And note that,

--8<---------------cut here---------------start------------->8---
$ guix repl -q -L /tmp/my-guix
GNU Guile 3.0.8
Copyright (C) 1995-2021 Free Software Foundation, Inc.

Guile comes with ABSOLUTELY NO WARRANTY; for details type `,show w'.
This program is free software, and you are welcome to redistribute it
under certain conditions; type `,show c' for details.

Enter `,help' for help.
scheme@(guix-user)> ,use(guix)
scheme@(guix-user)> ,use(my-packages extra)
scheme@(guix-user)> ,build sbcl-lispiec
$1 = "/gnu/store/giwpdx5kcwfry3bx2yc90084nkmx7283-sbcl-lispiec-1.0.2"
scheme@(guix-user)>
--8<---------------cut here---------------end--------------->8---


Cheers,
simon