branch master updated (2534fc0 -> 954cea3)

[Ludovic Courtès]

civodul pushed a change to branch master
in repository guix.

      from  2534fc0   gnu: Add libwpg.
       new  5e6039a   substitute: Increase TTL from 24h to 36h.
       new  934d370   gnu: Add markdown.
       new  e89431b   Move search path specifications to (guix search-paths).
       new  6568d2b   search-paths: Add 'evaluate-search-paths', from (guix 
scripts package).
       new  b07901c   search-paths: Add 'environment-variable-definition'.
       new  441cfb4   search-paths: 'evaluate-search-paths' now returns 
spec/value pairs.
       new  88aab8e   profiles: Use a &message error condition instead of 
'error'.
       new  954cea3   records: Make 'make-syntactic-constructor' available at 
load/eval/expand.

The 8 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:
 Makefile.am                       |    1 +
 gnu/packages/textutils.scm        |   50 ++++++++++-
 guix/build-system/cmake.scm       |    1 +
 guix/build-system/glib-or-gtk.scm |    1 +
 guix/build-system/gnu.scm         |    1 +
 guix/build-system/haskell.scm     |    1 +
 guix/build-system/perl.scm        |    1 +
 guix/build-system/python.scm      |    1 +
 guix/build-system/ruby.scm        |    1 +
 guix/build-system/waf.scm         |    1 +
 guix/packages.scm                 |   44 +--------
 guix/profiles.scm                 |    6 +-
 guix/records.scm                  |  190 +++++++++++++++++++------------------
 guix/scripts/package.scm          |   45 ++--------
 guix/scripts/substitute.scm       |    6 +-
 guix/search-paths.scm             |  171 +++++++++++++++++++++++++++++++++
 guix/utils.scm                    |   28 ------
 tests/utils.scm                   |   11 +-
 18 files changed, 350 insertions(+), 210 deletions(-)
 create mode 100644 guix/search-paths.scm