branch master updated (46a3e00 -> 25f9a06)

[Federico Beffa]

beffa pushed a change to branch master
in repository guix.

      from  46a3e00   gnu: icecat: Build with PulseAudio support.
       new  6f8fe4b   build/python-build-system: Fix easy-install.pth 
collisions.
       new  6fa1446   gnu: Add xcffib
       new  63cd6e5   gnu: Add cairocffi.
       new  25f9a06   gnu: matplotlib: Add gtk3 backends and optional 
dependency.  Adjust inputs.

The 4 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:
 gnu/packages/gtk.scm               |   57 ++++++++++++
 gnu/packages/python.scm            |  171 +++++++++++++++++++++++++++---------
 guix/build/python-build-system.scm |   35 ++++++--
 3 files changed, 213 insertions(+), 50 deletions(-)