Apparently, though unproven, at 12:52 on Thursday 09 June 2011, Ignas 
Anikevicius did opine thusly:

> Hello list,
> 
> I was wondering if it is possible to have a tool with which it would be
> possible to have external modules installed for _all_ kernel versions in
> my computer. Now I am using 2.6.38 kernel, but would like to try 2.6.39
> and the thing is that I would like to have tp_smapi and phc-intel
> modules in both kernels. Is it possible to have it without any serious
> hacking?
> 
> I have only 3 ideas how I could achieve that:
> * Making a custom ebuild, which would build the modules, but install
> itself as a different package depending on the kernel version (eg
> tp_smapi-2.6.39-gentoo)?
> * Making a custom ebuild, which would build the modules for all kernel
> versions in one go... (is this possible?)
> * patching the gentoo-sources each time.

why you making so much work for yourself?

set the /usr/src/linux symlink to each set of installed sources in turn,
 run emerge @module-rebuild
 or run module-rebuild rebuild

you could even script it

cd /usr/src
for I in linux-*
do
  ln -sfn $I linux
  module-rebuild rebuils
done

Fixing my bash syntax errors is left as an exercise for the interested reader


-- 
alan dot mckinnon at gmail dot com

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