Re: GCC and Built-Using

[Ansgar Burchardt <ansgar@debian.org>]

Matthias Klose <doko@debian.org> writes:
> Am 03.01.2013 19:31, schrieb Ansgar Burchardt:
>> several gcc packages seem to use the gcc source code shipped in
>> gcc-*-source during build, for example gnat-4.6, gnat-4.7 (in NEW),
>> gdc-4.6 and gcj-4.6.  To provide the full source, the archive has to
>> make sure to keep the source for those gcc-*-source packages around even
>> when they are superseded with a new release.  dak does so when the
>> binary packages indicate what sources to keep around with the new
>> Built-Using field (Policy 7.8).
>> 
>> Could you please add this field to gcc packages that make use of
>> gcc-*-source?
>
> no, it's not needed. the lower and upper limit on the -source package is enough.

It's needed: assume gnat-4.6 is built using gcc-4.6-source 4.6.3-14 and
later gcc-4.6-source 4.6.4-1 is uploaded.  Then the 4.6.3-14 version
will go away even though it's part of the source for the gnat-4.6 binary
still in the archive.

The version constraints in the Build-Depends field do not prevent this
from happening.

Ansgar