Re: RHEL 9 and modularity

[Petr Pisar]

On Wed, Jun 24, 2020 at 06:51:36AM +0000, Zbigniew Jędrzejewski-Szmek wrote:
>  I think there's some fear that "name mangling" is not a
> general
>  solution, and we'd have cases where names conflict. I think the
>  concern is realistic, but not a big issue in practice. With some
>  careful naming guidelines we are able to resolve naming conflicts, and
>  I'm sure we could extend the guidelines to multiple versions of language
>  stacks or whatever. We'd probably have slightly longer names or packages,
>  but that's not the end of the world.
>  
Namespacing RPM package names is only a tip of the iceberg. You need to
namespace RPM requires, provides, shared library sonames, shared library
symbols, header files, header file symbols, pkg-config files, manual pages,
cross references in the manual pages, executable names etc. You need to
namespace everything if you aim for a parallel installability. That's the
reason why modularity does not tackle it and instead conflicts the concurent
versions by filtering the packages from the concurent streams.

-- Petr