maintainer script fail to work with ro-mounted /usr/local

[StefanPotyra]

Binary package hint: python3.0

Hi,

python3.0-minimal fails to install/purge with a read-only mounted /usr/local:

stefan@suut:/tmp/python3.0-minimal
>> LANG=C sudo dpkg -i python3.0-minimal_3.0.1-0ubuntu13_amd64.deb
Selecting previously deselected package python3.0-minimal.
(Reading database ... 307988 files and directories currently installed.)
Unpacking python3.0-minimal (from python3.0-minimal_3.0.1-0ubuntu13_amd64.deb) ...
Setting up python3.0-minimal (3.0.1-0ubuntu13) ...
mkdir: cannot create directory `/usr/local/lib/python3.0': Read-only file system
dpkg: error processing python3.0-minimal (--install):
 subprocess post-installation script returned error exit status 1
Processing triggers for man-db ...
Errors were encountered while processing:
 python3.0-minimal
zsh: exit 1 LANG=C sudo dpkg -i python3.0-minimal_3.0.1-0ubuntu13_amd64.deb

Cheers,
    Stefan.