packaging mpich2 -- conflicts with lam and file layoutb

[Ed Hill]

Hi folks,

Deji Akingunola has stepped forward to package mpich2 and I'm reviewing
it:

  https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=171993

Two questions have come up that aren't (afaict) covered by the Fedora
Extras packaging guidelines and we're looking for "authoritative"
answers:

 1) What is official policy on conflicts between Extras and Core
    packages?  I have a vague memory that "no conflicts" is the 
    rule but I don't see it documented anywhere...  [or maybe I 
    just need to look harder? ;-)]

 2) What should one do in the case of packaging multiple MPI 
    implementations?  The "interesting" problem with different 
    MPI implementations (eg. LAM/MPI, mpich, mpich2) is that 
    they all want to provide a set of binaries, headers, man 
    pages and libs that have similar (many identical) names.
    So where does one put them?  I like:

      /usr/lib/${MPI_IMPL_NAME}/{include,lib,man,bin}

    but thats just my opinion and more experienced packagers 
    may have a better idea...?

Any help/guidance is appreciated!

Ed

-- 
Edward H. Hill III, PhD
office:  MIT Dept. of EAPS;  Rm 54-1424;  77 Massachusetts Ave.
             Cambridge, MA 02139-4307
emails:  eh3 at mit.edu                ed at eh3.com
URLs:    http://web.mit.edu/eh3/    http://eh3.com/
phone:   617-253-0098
fax:     617-253-4464