[Bug debuginfod/25509] Break a cyclic dependency by core packages

marxin.liska at gmail dot com sourceware-bugzilla@sourceware.org
Thu Feb 6 13:34:00 GMT 2020


https://sourceware.org/bugzilla/show_bug.cgi?id=25509

--- Comment #4 from Martin Liška <marxin.liska at gmail dot com> ---
(In reply to Mark Wielaard from comment #2)
> (In reply to Martin Liška from comment #0)
> > In openSUSE, we do face a problem with cyclic dependencies. Many core
> > packages like gcc, glibc, elfutils or binutils depend on each other and
> > create a cycle. The cycle should contain a reasonable amount of packages.
> > 
> > When debuginfod was added to elfutils, we would have a huge bunch of
> > dependencies caused by libhttpmicro and libsqlite. These have very many
> > transitive dependencies.
> 
> debuginfod the tool has dependencies on libhttpmicro, libsqlite, libdw and
> debuginfod-client.
> 
> debuginfod-client depends on libcurl (which pulls in a lot of the crypto
> stuff for https support).
> 
> libdw depends on debuginfod-client, but only indirectly through ldopen.
> 
> It does make sense to put these in different (output/sub) packages.
> Which is actually what the sample elfutils.spec file in config/ does.
> 
> That doesn't "split" the inputs/dependencies of the source build though.
> Which is what you seem most concerned with.
> 
> > So that I was forced to split elfutils into 2
> > packages: elfutils and elfutils-debuginfod. The later contains all the new
> > packages and is not part of the boostrap cycle.
> > 
> > What's more problematic is that there are (and will be) tools that want to
> > utilize libdebuginfod such as Binutils. As mentioned, the tool is in the
> > bootstrap cycle and so that can't depend on elfutils-debuginfod.
> 
> Do you have a pointer to the spec files you are using now?

You can find the 2 spec files here:
https://build.opensuse.org/package/show/Base:System/elfutils

> 
> > So the question is how to unbreak all these dependencies for future core
> > packages?
> 
> The GNU Guix people also had some concerns about all the new dependencies
> and also suggested splitting the package:
> https://debbugs.gnu.org/cgi/bugreport.cgi?bug=38803

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