ludo@gnu.org (Ludovic Courtès) writes:

> Oleg Pykhalov <go.wigust@gmail.com> skribis:

[…]

>> In case of ‘emacs’ package recipe, ‘--with-source’ doesn't work for a
>> snapshot of the ‘master’ branch.
>
> Why?  Because you’d need to run ‘autoreconf’ and the like?

To run everything in ‘(arguments …)’ except ‘#:parallel-build? #t’.

From http://lists.gnu.org/archive/html/help-guix/2017-09/msg00074.html
--8<---------------cut here---------------start------------->8---
      (arguments
       (substitute-keyword-arguments
           `(#:parallel-build? #t
                               #:tests? #f
                               ,@(package-arguments emacs))
         ((#:phases phases)
          `(modify-phases ,phases
             (add-after 'unpack 'autogen
               (lambda _
                 (zero? (system* "sh" "autogen.sh"))))
             (delete 'reset-gzip-timestamps)))))
--8<---------------cut here---------------end--------------->8---

Oleg.