Ben and Ludovic,

thank you

2016-05-16 0:45 GMT+02:00 Ben Woodcroft <b.woodcroft@uq.edu.au>:

> Hi there,
>
> On 16/05/16 06:57, Ludovic Courtès wrote:
>
>> Hi!
>>
>> Catonano <catonano@gmail.com> skribis:
>>
>> after having successfully packaged (locally) the Zenburn theme and
>>> Smartparens, I am preparing the package for clojure-mode
>>>
>>> But for the first time it happens that the downloaded source code is not
>>> tarred so tar fails and so does the unpack phase.
>>>
>>> How do I instruct the origin object not to attempt untarring my source ?
>>>
>> It’s OK if the ‘origin’ denotes a file that is not a tarball.
>>
>> However, the build procedure will have to pay attention for that.  For
>> instance, the default sequence of phases of ‘gnu-build-system’ includes
>> an ‘unpack’ phase, which is inappropriate here:
>>
>>    https://www.gnu.org/software/guix/manual/html_node/Build-Systems.html
>>
>> There are a couple of examples, e.g., paredit in emacs.scm.  Most of
>> them use ‘trivial-build-system’, which requires explicitly writing the
>> build/install operations.
>>
>
Ludo, in fact, for my Zenburn theme package, I copied the build code from
the paredit package.

But then I noticed that other Emacs modules used the Emacs build system
instead of the trivial one.


> If it is a single file then I believe it is as simple as deleting the
> unpack phase e.g. fasttree in bioinformatics.scm, I had thought it was
> still good practice not to use the trivial build system where possible as
> it omits some useful defaults.
>

That's what I thought too. If there's a build system made on purpose for
Emacs modules, then that's the right module for me.

Now, Ben, I copied from the fasttree package for my clojure mode and this
is the relevant bit


  (build-system emacs-build-system)
  (inputs `(("emacs" ,emacs-no-x)))
  (arguments
   `(#:phases
     (modify-phases %standard-phases
                    (delete 'unpack))))


Now the build succeeds but 2 weird thing happen:


   1. in .guix-profile/share/emacs/site-lisp/guix.d/ there's a clojure mode
   autoloads file but there's NO clojure-mode file !

   So I would say that the build wasn't so successful !



   2. During the build lots of packages were downloaded, including Emacs.

   But I explicitly indicated emacs-no-x in the recipe.

   This didn't happen with Smartparens (that also used the Emacs build
   system).

   It's as if modifying the standard phases messed up the build process

Now, I could easily welcome Ludo's suggestion to use the trivial build
system as I did with the Zenburn theme

But I'd like to understand.

If there's anyone wiling to inspect my clojure-mode recipe, I can paste it
on pastebin or somewhere else.