branch wip-build-systems-gexp updated (0b64b8c -> 666d283)

[Ludovic Courtès]

civodul pushed a change to branch wip-build-systems-gexp
in repository guix.

      from  0b64b8c   packages: Turn 'cache!' into a single-value-return cache.
       new  7188ebe   gexp: 'local-file' calls 'canonicalize-path' only in rare 
cases.
       new  024d6d5   utils: Memoize 'absolute-dirname'.
       new  666d283   download: 'built-in-builders*' relies on the functional 
cache.

The 3 revisions listed above as "new" are entirely new to this
repository and will be described in separate emails.  The revisions
listed as "adds" were already present in the repository and have only
been added to this reference.


Summary of changes:
 guix/download.scm | 14 ++++----------
 guix/gexp.scm     | 11 +++++------
 guix/utils.scm    | 22 ++++++++++++----------
 3 files changed, 21 insertions(+), 26 deletions(-)