I’m often rebuilding software packages (mostly Debian) for older versions (of both Debian and Ubuntu, including oldoldstable). Some of these packages use the lsb_release command to figure out the current distribution, in order to change behaviour, Build-Depends, etc.
I’ve got a multiple-distribution and CPU architecture cowbuilder setup, but to prepare the source packages (which are then built in a clean environment that matches the target distribution), I still need to do something like:
dpkg-source -x openjdk-7_7u55-2.4.7-1~deb7u1.dsc
cd openjdk-7-7u55-2.4.7
dch --bpo
dpkg-buildpackage -S
The dpkg-buildpackage -S step creates a source package (*.dsc and assorted files) after running the clean target (which regenerates debian/control in many packages). But for this, the lsb_release output needs to be, for instance, squeeze or even lenny.
From my work on Debian/m68k I know I can create an /etc/lsb-release file containing magic, underdocumented lines to control the output of lsb_release, which otherwise looks into, for example, the APT sources.list file, preferences, etc. to determine the distribution. But there is no easy way to make the output mirror another existing distribution.
Has anyone a collection of such files, to mirror the target distribution?
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