Re: libvirt: A potential problem in the package and looking for guidance

[Ludovic Courtès]

Hi,

Allan Adair <allan@adair.no> skribis:

>   File "/gnu/store/g2x37cxh2ag5h66f0p9zaz9pkz2vcvgg-python-libvirt-
> 7.9.0/lib/python3.9/site-packages/libvirt.py", line 1353, in create
>     raise libvirtError('virDomainCreate() failed')
> libvirt.libvirtError: '/usr/libexec/qemu-bridge-helper' is not a suitable
> bridge helper: No such file or directory
>
>
> Because the package is searching specifically for "/usr/libexec/qemu-
> bridge-helper", I think this is a bug in the package definition. "/usr"
> should probably be a prefix from the store, right?
>
> Any comments or suggestions?

Presumably that “/usr/libexec/qemu-bridge-helper” reference is
hard-coded in the source.  The solution in situations like this is to
replace it (using ‘substitute*’) by the absolute file name of the
corresponding program in /gnu/store.

  (substitute* "some/file.py"
    (("/usr/libexec/qemu-bridge-helper")
     (search-input-file inputs "/bin/qemu-bridge-helper")))

HTH!

Ludo’.