Raphael Hertzog writes ("Re: Bug#456332: dpkg could use an elevated pre-depends
or depends on lzma"):
> On Thu, 24 Jan 2008, Ian Jackson wrote:
> > How about if we arrange to pass -Z<something> to dpkg-gencontrol, and
> > have a table in dpkg-dev to map <something> to
> > deb-decompressor-<something> for values where it is needed ?
>
> The problematic part is "arrange to pass -Z<something> to
> dpkg-gencontrol" ... the -Z of dpkg-buildpackage is for dpkg-source and
> not dpkg-deb -b. And even if we knew right from the start what compressor
> to use, the dpkg-gencontrol call is hidden in debian/rules and we have no
> way to pass anything (except maybe an environment variable which isn't
> really nice).
Yes, I obviously hadn't thought about this too deeply.
How do we expect to choose which packages will use which compressors ?
Ideally in the end the maintainer would decide, so it ought to be in
the source package somewhere. But we want to override it too.
I think for overriding it, an environment variable is fine. Perhaps
we could just tell maintainers to put
export DPKG_DEB_COMPRESSOR ?= ...
in their rules. Hrm, that doesn't work so well if different packages
want different compression schemes. A debian/control file field ?
Ian.
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