[bug#51962] python-libvirt build failure on core-updates-frozen

[Jack Hill <jackhill@jackhill.us>]

Hi Guix,

python-libvirt currently (commit dab4ce01044b2d960da7375735e9543a259f97d3) 
fails to build for me with:

starting phase `build'
running "python setup.py" with command "build" and parameters ()
running build
/gnu/store/wc7lqi6kgki5qzr01g3gvriwdadjiwpc-pkg-config-0.29.2/bin/pkg-config --print-errors --atleast-version=0.9.11 libvirt
/gnu/store/3282r97il61j9jkv2aaifa3nwdylzfsv-python-wrapper-3.9.6/bin/python generator.py libvirt /gnu/store/qzm4ggs2k0wsi0wxvvcaq5kmrmpjrpzv-libvirt-7.9.0/share/libvirt/api/libvirt-api.xml
Found 492 functions in /gnu/store/qzm4ggs2k0wsi0wxvvcaq5kmrmpjrpzv-libvirt-7.9.0/share/libvirt/api/libvirt-api.xml
Found 0 functions in libvirt-override-api.xml
Generated 402 wrapper functions
Missing type converters: 
int *:1 
ERROR: failed virNodeDeviceGetAutostart
error: command '/gnu/store/3282r97il61j9jkv2aaifa3nwdylzfsv-python-wrapper-3.9.6/bin/python' failed with exit code 1
error: in phase 'build': uncaught exception:
%exception #<&invoke-error program: "python" arguments: ("-c" "import setuptools, tokenize;__file__='setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\\r\\n', '\\n');f.close();exec(compile(code, __file__, 'exec'))" "build") exit-status: 1 term-signal: #f stop-signal: #f> 
phase `build' failed after 0.2 seconds
command "python" "-c" "import setuptools, tokenize;__file__='setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\\r\\n', '\\n');f.close();exec(compile(code, __file__, 'exec'))" "build" failed with status 1
builder for `/gnu/store/c8gchxa3f1xq33a118bp6hfvn02dr93c-python-libvirt-7.3.0.drv' failed with exit code 1
build of /gnu/store/c8gchxa3f1xq33a118bp6hfvn02dr93c-python-libvirt-7.3.0.drv failed
View build log at '/var/log/guix/drvs/c8/gchxa3f1xq33a118bp6hfvn02dr93c-python-libvirt-7.3.0.drv.bz2'.
guix build: error: build of `/gnu/store/c8gchxa3f1xq33a118bp6hfvn02dr93c-python-libvirt-7.3.0.drv' failed

Updating python-libvirt to the latest release, 7.9.0 solves the problem. 
The only dependent package, virt-manager, as reported by `guix refresh -l` 
builds and works (I was able to connect to the graphical console of a VM 
running on a remote host). Tested on x86_64-linux.

Best,
Jack