branch master updated (c3768fa -> b607593)

[Ludovic Courtès]

civodul pushed a change to branch master
in repository guix.

      from  c3768fa   gnu: calibre: Update to 2.23.0.
       new  a84e523   build: Silence warnings about 'make' portability.
       new  9d3fb6c   install: Add a procedure to build a self-contained binary 
tarball.
       new  a0bcaef   Thank Pjotr.
       new  890024c   gnu: Don't use #:prefix in (gnu packages sdl).
       new  b607593   hydra: Add jobs for the self-contained tarball.

The 5 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                    |    7 ++++++
 THANKS                         |    1 +
 build-aux/hydra/gnu-system.scm |   26 ++++++++++++++++++++++++
 configure.ac                   |    2 +-
 gnu/build/install.scm          |   43 +++++++++++++++++++++++++++++++++++++++-
 gnu/packages/sdl.scm           |    6 ++--
 gnu/system/install.scm         |   39 +++++++++++++++++++++++++++++++++++-
 7 files changed, 118 insertions(+), 6 deletions(-)