* guix/deprecation.scm (deprecation-warning-port): Default
to (current-error-port).

* guix/deprecation.scm (define-deprecated/alias): New macro.

* gnu/packages/games.scm (fortune-mod)[arguments]: Skip failing tests.

* gnu/packages/video.scm (mediainfo): Update to 18.12.
[arguments]: Remove manual autogen.sh.

* gnu/packages/cpp.scm (libzen)[source]: Fix sha256.
[arguments]: Remove manual autogen.sh.

* guix/import/github.scm (latest-released-version): Use any and cond instead
of a recursive loop and an if-else ladder respectively.

* guix/import/github.scm (latest-released-version): Use preleases when package
has no releases.

* gnu/packages/virtualization.scm (xen): Update comments.

* gnu/packages/virtualization.scm (xen)[arguments]<#:phases>[patch]:
Don't patch etherboot's "Makefile".

When trying to convert a PDF to EPUB, the following error occurs:

File "/gnu/store/kz6bgqw9z7akj11zh20wkx14cgq0s3n2-calibre-3.35.0/lib/calibre/calibre/ebooks/pdf/pdftohtml.py", line 76, in pdftohtml
    _('Could not find pdftohtml, check it is in your PATH'))

Hardcode pdftohtml binary path by patching pdftohtml.py.

* gnu/packages/ebook.scm (calibre)[arguments]: Patch pdftohtml.py in
'configure phase to set hardcode pdftohtml binary path.

* gnu/packages/moreutils.scm (moreutils): Update to 0.63.
[arguments]: All phases return #t.

* gnu/packages/perl.scm (perl-module-scandeps): Update to 1.27.

* gnu/packages/perl.scm (perl-json): Update to 4.01.
[source]: Update source uri.

* gnu/packages/perl.scm (perl-json-xs): Update to 4.0.
[native-inputs]: Add perl-canary-stability.

* gnu/packages/perl.scm (perl-file-remove): Update to 1.58.
[description]: Texify the description.

* gnu/packages/perl.scm (perl-file-homedir): Update to 1.004.

* gnu/packages/perl.scm (perl-file-which): Update to 1.23.
[source]: Update source uri.
[home-page]: Update to new home-page.

* gnu/packages/perl.scm (perl-file-slurp): Update to 9999.25.
[source]: Update source uri.

* gnu/packages/perl.scm (perl-text-template): Update to 1.54.
[native-inputs]: Add perl-test-more-utf8, perl-test-warnings.

* gnu/packages/perl-check.scm (perl-test-more-utf8): New variable.

Previously execution of the trampoline would be somewhat sensitive to
GUILE_LOAD_PATH & co., for example.

* build-aux/build-self.scm (build-program): Remove 'unsetenv' call and
%LOAD-COMPILED-PATH hack.
(call-with-clean-environment): New procedure.
(with-clean-environment): New macro.
(build): Wrap 'open-pipe*' call in 'with-clean-environment'.

* gnu/ci.scm (system-test-jobs): Return the empty list when SYSTEM is
"armhf-linux".

Follow-up to 35e8900d.

* gnu/packages/virtualization.scm (xen): Update comment.

* gnu/packages/virtualization.scm (xen): New variable.

* .mailmap: Add my email.

* TODO (Installer): Add Pierre Neidhardt suggestions described here:
  https://lists.gnu.org/archive/html/guix-devel/2019-01/msg00305.html

* gnu/packages/messaging.scm (gajim): Update to 1.1.2.

* gnu/packages/messaging.scm (python-nbxmpp): Update to 0.6.9.

* gnu/packages/xorg.scm (xcursorgen): Update to 1.0.7.

* gnu/packages/virtualization.scm (umoci): Update to 0.4.3.

* gnu/packages/video.scm (vlc): Update to 3.0.6.

* gnu/packages/xml.scm (perl-xml-compile): Update to 1.61.

Fixes <https://bugs.gnu.org/34136>.
Reported by Pierre Neidhardt <mail@ambrevar.xyz>.

Fixes wrong-type-arg crash of "guix pull -p /does-not-exist -l".

* guix/scripts/pull.scm: Use (srfi srfi-34).

* guix/self.scm (compiled-guix)[*system-modules*]: Remove gnu/tests/*
from #:extra-files.
[*system-test-modules*]: New variable.
[build-modules]: Add them.

* gnu/packages/python-xyz.scm (python-cysignals, python2-cysignals):
Update to 1.9.0.

* gnu/packages/games.scm (freedink-data): Update to 1.08.20190120.

* gnu/packages/games.scm (freedink-dfarc)[properties]: New field.

* gnu/packages/games.scm (freedink-data)[properties]: New field.

* gnu/packages/games.scm (freedink-engine)[properties]: New field.

This fixes a regression introduced in 9a5091d0
whereby packages with git origin URIs not hosted on GitHub would be wrongly
detected as being covered under the github updater.
Reported by Efraim Flashner <efraim@flashner.co.il>.

* guix/import/github.scm (updated-github-url): Check if git URIs are GitHub
URIs.