* guix/build/qt-build-system.scm (check-setup): New function.
  (%standard-phases): Add as new phase `check-setup before `check.
* doc/guix.texi (Build System)[qt-build-system]: Describe the new phase.

This package was already in Guix since commit
dbcef44a.

This reverts commit 87435943.

This package was already in Guix since commit
dbcef44a.

This reverts commit 2cb4ee27.

This package was already in Guix since commit
db6bd842.

This reverts commit fb4db074.

If $XDG_DATA_DIRS is unset, default value of "/usr/local/share:/usr/share"
is used according to XDG Base Directory Specification. However,
/etc/profile.d/guix.sh treats this value as empty list when appending its
own directory, so after installing Guix on the system, launchers such
as Rofi stop searching for .desktop files in /usr/share/applications/
and can't launch applications other than those installed with Guix.

This patch fixes the bug in generated /etc/profile.d/guix.sh

* etc/guix-install.sh (sys_create_init_profile): Use default value of
  /usr/local/share:/usr/share/ before appending if $XDG_DATA_DIRS is not
  set.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

* etc/guix-install.sh (sys_create_init_profile): Add code to create
/etc/profile.d if it somehow does not exist; the function still carries
on because it is possible that /etc/profile is still configured to read
the *.sh files from /etc/profile.d, if they exist.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

* etc/guix-install.sh (sys_create_init_profile): Export INFOPATH to include
the updated info-pages from ~/.config/guix/current/share/info.  This also makes
sure that both /usr/bin/info and $GUIX_PROFILE/bin/info can read guix info pages
without throwing "no menu item 'guix' in node dir(Top)" error.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

* gnu/packages/mail.scm (mailutils)[arguments]: In #:configure-flags,
replace hard-coded "2.2" with the 'version-major+minor' of the "guile"
input.
(guile3.0-mailutils): New variable.

* gnu/packages/emacs-xyz.scm (emacs-vterm): New variable.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

* gnu/packages/linux.scm (linux-libre-5.4-version): Update to 5.4.15.
(linux-libre-5.4-pristine-source): Update hash.

* gnu/packages/text-editors.scm: Add missing modules.

* gnu/packages/text-editors.scm (qemacs): New variable.

* gnu/packages/python-xyz.scm (offlate): New variable.

* gnu/packages/python-xyz.scm (python-watchdog): New variable.

* gnu/packages/python-xyz.scm (python-argh): New variable.

* gnu/packages/python-xyz.scm (python-iocapture): New variable.

* gnu/packages/python-xyz.scm (python-pathtools): New variable.

* gnu/packages/python-xyz.scm (python-android-stringslib): New variable.

* gnu/packages/python-web.scm (python-gitlab): New variable.

* gnu/packages/python-check.scm (python-httmock): New variable.

* gnu/packages/python-web.scm (python-translation-finder): New variable.

* gnu/packages/python-check.scm (python-codacy-coverage): New variable.

* gnu/packages/python-xyz.scm (python-check-manifest): New variable.

* gnu/packages/enchant.scm (python-pyenchant): New variable.

* gnu/services/spice.scm (spice-vdagent-service): Fix typo.

Signed-off-by: Danny Milosavljevic <dannym@scratchpost.org>

This is a follow-up to commit 9c2563a8.

* gnu/packages/machine-learning.scm (ghmm)[arguments]: Add #:modules.

* gnu/packages/games.scm (kobodeluxe)[inputs]: Add GLU.

This is a follow-up to commit 5f613047.

* gnu/packages/gl.scm (freeglut-2.8)[arguments]: New field.

* gnu/packages/audio.scm (ir): Update to 1.3.4.
[source]: Fetch via git.
[home-page]: Update.
[arguments]: Pass INSTDIR.

* gnu/packages/finance.scm (libofx)[arguments]: Add #:parallel-build?.

* gnu/packages/xml.scm (python-xmlschema): Update to 1.1.0.
[source]: Change to GIT-FETCH.
[arguments]: Adjust test invokation.

* gnu/packages/xml.scm (python-elementpath): Update to 1.4.0.

* gnu/packages/javascript.scm (font-mathjax)[source]: Download using
git-fetch.
[arguments]: Adjust for change in source.
[native-inputs]: Remove gzip, tar.
(js-mathjax)[source]: Adjust for change in source.

* gnu/packages/vim.scm (vim-fugitive): Update to 3.2.

* gnu/packages/guile-xyz.scm (guile3.0-gi): New variable.

* gnu/packages/guile-xyz.scm (guile-gi): Update to 0.2.2.

* gnu/packages/engineering.scm (freehdl)[native-inputs]: Add gcc-5.

* gnu/packages/mail.scm (public-inbox): Update to 1.2.0-0.05a06f3.

* gnu/packages/ci.scm (cuirass): Update to 0.0.1-28.b9031db.