Amen!
but shouldn't this be cross posted to:
http://lists.sourceforge.net/mailman/listinfo/cpan2rpm-general
or a bug filed at
http://sourceforge.net/tracker/?group_id=74018&atid=539686
But good to know.
On Mon, 29 Aug 2005, Dan Franklin wrote:
I've been using cpan2rpm a fair amount, and sometimes the rpm files it
produces refuse to install because of dependency issues. After investigating,
I think it's because of a problem with rpm's automatic dependency generators
for Perl.
The problem occurs when a Perl .pm file in a CPAN module has a 'use'
statement that corresponds to a .pm file also in the module, but that second
file's 'package' statement doesn't match the filename. This is legal Perl.
rpmbuild will generate a requires for the filename and a provides for the
package. Since these don't match, the RPM won't install because it appears
to require things that don't exist.
For example, take CPAN module VCS::LibCVS, whose RPM failed to install with
several requirements not met.
In one of its files, VCS/LibCVS/Client.pm, it has a use statement
use VCS::LibCVS::Client::Request::Requests;
which causes it to load VCS/LibCVS/Client/Request/Requests.pm, which is also
part of VCS::LibCVS. But Requests.pm has no package statement for
VCS::LibCVS::Client::Request::Requests. It defines many other packages, but
not that one. This is OK, because none of the LibCVS code ever tries to
create an object by that name. So the code is fine.
But perl.req scans for 'use' statements, and generates a requirement for
perl(VCS::LibCVS::Client::Request::Requests), while perl.prov scans for
'package' statements, so it never says that this module provides a matching
package. Result: when I try to install the package, rpm says that it is
missing perl(VCS::LibCVS::Client::Request::Requests). This happens for
several other requirements as well.
I can get around this by adding Provides: tags for the "missing" packages,
but it seems to me that perl.prov ought not to scan for package statements.
It should just use the things that 'use' statements actually care about - the
filenames themselves.
Dan Franklin
dfranklin@xxxxxxx
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