[maemo-developers] Optional build dependencies (e.g. for fremantle)

[From: Till Harbaum / Lists]

Hi,

i am currently trying to prepare the osm2go package to build for fremantle. I've 
fixed most things, but one thing still lacks: How do i specify "would like
to have" build dependencies?

E.g. i'd like to rely on table-browser-interface-dev. But this isn't there yet for fremantle.
So if i have it in the build-depends line in the control file the fremantle build breaks.
If i don't put it there it won't be installed in any autobuild process, hence it won't be used
in chinook/diablo autobuild.

How do i specifiy a package that i'd like to use during buikd but that i can cope with 
if it's not there (yet)?

Till