gnu: firebird: Add support for riscv64-linux.

* gnu/packages/databases.scm (firebird)[source]: Add patches.
[arguments]: Add custom phase when building for riscv64-linux to force
the bootstrap phase to occur.
[native-inputs]: When building for riscv64-linux add autoconf, automake
and libtool.
* gnu/packages/patches/firebird-riscv64-support-pt1.patch,
gnu/packages/patches/firebird-riscv64-support-pt2.patch: New files.
* gnu/local.mk (dist_patch_DATA): Register them.

gnu: Remove icu4c-67.

* gnu/packages/icu4c.scm (icu4c-67): Remove variable.

gnu: firebird: Update to 3.0.10.

* gnu/packages/databases.scm (firebird): Update to 3.0.10.
[source]: Remove trailing #t.
[arguments]: Remove trailing #t from phases.
[inputs]: Replace icu4c-67 with icu4c.
[properties]: Remove field.

gnu: openexr-2: Extend the test timeout.

* gnu/packages/graphics.scm (openexr-2)[arguments]: Adjust the custom
phase to extend the test timeout.

gnu: guile-fibers: Skip some long tests on some architectures.

* gnu/packages/guile-xyz.scm (guile-fibers-1.1)[arguments]: Add custom
phase to skip some overly long tests.

gnu: guile-fibers: Remove guild warnings.

* gnu/packages/guile-xyz.scm (guile-fibers)[arguments]: Add make-flag to
silence guild warnings.

gnu: gtk: Use architecture appropriate librsvg.

* gnu/packages/gtk.scm (gtk)[propagated-inputs]: When building for
x86_64-linux use librsvg-bootstrap, otherwise use librsvg-2.40.

gnu: svt-hevc: Limit to x86_64-linux.

* gnu/packages/video.scm (svt-hevc)[supported-systems]: Remove
i686-linux. Add comment.
* gnu/packages/gstreamer.scm (gst-plugins-bad)[inputs]: Don't add
svt-hevc when building for i686-linux.

gnu: python-websockets: Extend test timeout.

* gnu/packages/python-web.scm (python-websockets)[arguments]: Add phase
to extend the tests timeout so slower machines can complete them.

gnu: python-cython: Remove duplicate version.

* gnu/packages/python-xyz.scm (python-cython-0.29.32): Remove variable.
* gnu/packages/python-science.scm (python-pandas)[native-inputs]: Change from
PYTHON-CYTHON-0.29.32 to PYTHON-CYTHON.

Merge branch 'master' into staging

gnu: python-pandas: Update to 1.4.4.

* gnu/packages/python-science.scm (python-pandas): Update to 1.4.4.
[native-inputs]: Change from PYTHON-CYTHON to PYTHON-CYTHON-0.29.32.

gnu: python-cython: Add 0.29.32.

* gnu/packages/python-xyz.scm (python-cython-0.29.32): New variable.

gnu: gnome-settings-daemon: Add NSS on RUNPATH.

* gnu/packages/gnome.scm (gnome-settings-daemon)[arguments]: Ensure NSS ends
up on RUNPATH.

gnu: Explicitly use OpenSSL 1.1 in packages that don't support 3.0.

* gnu/packages/php.scm (php)[inputs]: Change from OPENSSL to OPENSSL-1.1.
* gnu/packages/ntp.scm (ntp)[inputs]: Likewise.

gnu: Explicitly use meson@0.60 in packages that don't support 0.63.

* gnu/packages/gnome.scm (gnome-disk-utility, gnome-screenshot,
dconf-editor)[arguments]: Add #:meson.

gnu: python-ufo2ft: Don't use pytest-runner.

pytest-runner is deprecated and does not work properly with the newer
setuptools in Python 3.10 for this package.

* gnu/packages/fontutils.scm (python-ufo2ft)[arguments]: Override check
phase.
[native-inputs]: Remove PYTHON-PYTEST-RUNNER.

gnu: polari: Add missing input.

* gnu/packages/gnome.scm (polari)[inputs]: Add libadwaita.

gnu: Add missing emacs-polymode patch.

This fixes up commit 52e55b38f446784209866dcf4bff23b7f604ba24.

* gnu/packages/patches/emacs-polymode-fix-lexical-variable-error.patch:
New file.

gnu: gitg: Use gtksourceview-4.

* gnu/packages/gnome.scm (gitg)[inputs]: Replace gtksourceview with
gtksourceview-4.