From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ricardo Wurmus <ricardo.wurmus@mdc-berlin.de>
Subject: Re: Guile 2.0.11 error during test of package definition on Trisquel 7
Date: Sat, 23 Jan 2016 11:46:56 +0100
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To: swedebugia@riseup.net
Cc: guix-devel <guix-devel@gnu.org>


swedebugia@riseup.net writes:

> I tried following the manual build* from a fresh git pull.
>
>  From 7.6:
> "   ./pre-inst-env guix build gnew --keep-failed
>     If the package is unknown to the =E2=80=98guix=E2=80=99 command, it=
 may be that the
> source file contains a syntax error, or lacks a =E2=80=98define-public=E2=
=80=99 clause
> to export the package variable.  To figure it out, you may load the
> module from Guile to get more information about the actual error:
>
>       ./pre-inst-env guile -c '(use-modules (gnu packages gnew))'"
>
> After putting the new package definition below into python.scm:
> (define-public python-twisted
>    (package
>      (name "python-twisted")
>      (version "15.5.0")
>      (source
>       (origin
>         (method url-fetch)
> ;       (extension "tar.bz2")
> ;       (uri (pypi-uri "Twisted" version extension))
>         (uri (pypi-uri "Twisted" version))
>         (sha256
>          (base32
>           "0zy18lcrris4aaslil5k12i13k56c32hzfdv6h10kbnzl026h158"))))
>      (build-system python-build-system)
>      (inputs
>       `(("python-setuptools" ,python-setuptools)))
>      (home-page "http://twistedmatrix.com/")
>      (synopsis
>       "An asynchronous networking framework written in Python")
>      (description
>       "An asynchronous networking framework written in Python")
>      (license license:expat)))
>
> ./pre-inst-env guix build cannot find it.

Is there more output?  Sometimes syntax errors or otherwise invalid
expressions are reported as guix build fails to find the package.

>From what I can tell =E2=80=9C./pre-inst-env guix build python-twisted=E2=
=80=9D should
just work.  I have never had to use the =E2=80=9Cguile -c=E2=80=9D way.

~~ Ricardo