Version substitution in debian/control

[Francois Marier <francois@debian.org>]

(Please CC me in your replies, I'm not subscribed to debian-devel)

Hi,

I'm trying to find a way to make a package depend on a specific version of
another package, with a slight difference.

I would like
  package "foo" with upstream version 1.0.0.20070630
to depend exactly on
  package "bar" with upstream version 1.0.0
and not work with
  package bar with upstream version greater than 1.0.0

So I guess it would be similar to requiring the same upstream version except
but truncating the last part of package foo's version before doing the
comparison.

I've had a look at deb-substvars(5), but as far as I can see, I'd have to
use a custom substitution in debian/substvars and update that one every time
package bar is released.

Does anybody have a better solution?  Would it make any difference if I
were to convince upstream to change the version to 1.0.0+20070630 ?

Cheers,

Francois