gnu: libosinfo: Fix substitute fetching for usb.ids.

* gnu/packages/qemu.scm (libosinfo)[native-inputs]: Add 'file-name' field to
'origin' record of "usb.ids".  Otherwise, the default file name contains a "?"
which leads to failure to fetch nars from substitute servers.

gnu: ardour: Add eudev dependency.

* gnu/packages/audio.scm (ardour)[inputs]: Add eudev.

Revert "gnu: Add threaded variants of fftw and fftwf for Ardour and mod-host."

These variants are no longer needed.

Followup to 86f4e9d76a75c405b3b6c5b3f1717df0e45f4e68.

This reverts commit 45591fd7fde1a400a416cb99939f6dd766445f94.

gnu: kcrash: Work around race condition when starting Xvfb.

Sometimes tests would start running before Xvfb is listening.
See <https://hydra.gnu.org/build/1750201>.

* gnu/packages/kde-frameworks.scm (kcrash)[arguments]: In
'start-xorg-server', add 'sleep' call after starting Xvfb.  Pass "Xvfb"
to 'system' instead of its absolute file name.

Revert "gnu: nss: Add comment about test failures in NSS 3.27.2"

This reverts commit 4f6ff977c22b996765178a1dcc6e8f1523601817.

gnu: cairomm: Update to 1.12.2.

* gnu/packages/gtk.scm (cairomm): Update to 1.12.2.
[source]: Download from cairographics.org.
[home-page]: Use https.

gnu: cairo: Update to 1.14.8.

* gnu/packages/gtk.scm (cairo): Update to 1.14.8.
[source]: Use https.
[home-page]: Use https.

gnu: harfbuzz: Update to 1.3.4.

* gnu/packages/gtk.scm (harfbuzz): Update to 1.3.4.

gnu: poppler: Update to 0.50.0.

* gnu/packages/pdf.scm (poppler): Update to 0.50.0.

gnu: cups-filters: Update to 1.13.1.

* gnu/packages/cups.scm (cups-filters): Update to 1.13.1.
[inputs]: Switch libjpeg-8 to libjpeg.
[arguments]: Disable driverless printing, set location for bash shell.

gnu: mesa: Enable floating point textures.

* gnu/packages/gl.scm (mesa): Add --enable-texture-float to configure flags.

gnu: libxpm: Update to 3.5.12.

* gnu/packages/xorg.scm (libxpm): Update to 3.5.12.

gnu: kmod: Update to 23.

* gnu/packages/linux.scm (kmod): Update to 23.

gnu: Patch libxt's default search path.

* gnu/packages/patches/libxt-guix-search-paths.patch: New file.
* gnu/packages/xorg.scm (libxt) [source]: Add patch.

services: wicd: Create /var/run/wpa_supplicant.

* gnu/services/networking.scm (%wicd-activation): Create
/var/run/wpa_supplicant.

gnu: eyed3: Update to 0.7.10.

* gnu/packages/mp3.scm (eyed3): Update to 0.7.10.

gnu: beets: Update to 1.4.3.

* gnu/packages/music.scm (beets): Update to 1.4.3.

gnu: python-mutagen: Update to 1.36.

* gnu/packages/music.scm (python-mutagen, python2-mutagen): Update to 1.36.

gnu: moc: Update to 2.5.2.

* gnu/packages/music.scm (moc): Update to 2.5.2.
[source](modules, snippet): Remove timestamps from the output.

gnu: cracklib: Fix buffer overflow.

* gnu/packages/patches/cracklib-fix-buffer-overflow.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.
* gnu/packages/password-utils.scm (cracklib)[source]: Use it.