Bug#962318: libmojolicious-perl: build fails on IPv6-only buildds

[gregor herrmann]

On Tue, 09 Jun 2020 15:35:37 +0200, Jérémy Lal wrote:

> Is there a simple way to setup the network locally so i can reproduce it ?
> Naive attempts (like disabling IPv4 on the wan network) failed.

Niko and Dom came up with this recipe:

    # unshare -n
    # ip li set lo up
    # ip li add dummy0 type dummy
    # ip li set dummy0 up

If you are using pbuilder/cowbuilder you can
- make sure you have USENETWORK=no in your pbuilderrc
- add the following to /usr/lib/pbuilder/pbuilder-unshare-wrapper
  after the lo dance:

ip li add dummy0 type dummy
ip li set dummy0 up


Cheers,
gregor

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