Packaging question on MPI requires

[Sandro Mani]

On 22.10.2015 16:49, Ankur Sinha wrote:
> Hiya,
>
> I recently packaged up nest[0] which is widely used in the
> computational neuroscience research community. The review ticket is
> here[1], and the copr builds are here[2]. Even though the rpm builds
> perfectly, dnf won't install them from the copr. This is what I get:
>
>
>> [asinha at cs-as14aho-2-herts-ac-uk  ~]$ rpm -q --provides mpich
>> libmpi.so.12()(64bit)(mpich-x86_64)
>> libmpicxx.so.12()(64bit)(mpich-x86_64)
>> libmpifort.so.12()(64bit)(mpich-x86_64)
>> mpi
>> mpich = 3.1.4-5.fc23
>> mpich(x86-64) = 3.1.4-5.fc23
>> mpich2 = 3.0.1
>> [asinha at cs-as14aho-2-herts-ac-uk  ~]$ sudo dnf install nest-mpich pynest -y
>> Error: nothing provides libmpi.so.12()(64bit) needed by pynest-2.8.0-1.gitdc21fdc.fc23.x86_64.
>> nothing provides libmpi.so.12()(64bit) needed by nest-mpich-2.8.0-1.gitdc21fdc.fc23.x86_64
>> (try to add '--allowerasing' to command line to replace conflicting packages)
>> [asinha at cs-as14aho-2-herts-ac-uk  ~]$
>>   
> Would someone know what I'm doing wrong here? :/
For some reason the mpi dependency generators (in rpm-mpi-hooks) are 
failing to generate the correct libmpi requires. I'll look into it.