[Pkg-opencl-devel] [RFC] multiarch and virtual packages

[Kurt Roeckx]

On Thu, Oct 03, 2013 at 11:54:55AM +0200, Vincent Danjean wrote:
> 
> The current proposal about Depends/Conflicts/Provides is the following:
> ICD Loader:
> ===========
> Section: libs
> Multi-Arch: same
> Architecture: any
> Provides: libopencl1
> Conflicts: libopencl1
> Replaces: libopencl1
> Suggests (or Recommends): opencl-icd

That Replaces makes no sense.

Why isn't that a Depends on opencl-icd?  I assume a loader is
useless without any implementations being installed, and the
application would just depend on libopencl1 instead of both
virtual packages.  Or is there a fallback mechanism so that
OpenCL applications can work without one?

But then I have to wonder how someone would install things
that want to use OpenCL.  I just want to install the application
and it should hopefully install the opencl implementation
for the hardware I want to use, possible all available ones.
And I think the only way to do something like that is to
have a package depend on all the implementations.  And you
could perhaps than just Recommend that package.


Kurt