Created attachment 1132552 [details]
test.c

Description of problem:

Package hdf5-mpich-devel currently requires only hdf5-mpich (which in turn requires mpich) and does not require mpich-devel. Then when compiling software which uses hdf5-mpich-devel, linking against libmpi (i.e. -lmpi) fails because package mpich provides the versioned libraries (i.e. libmpi.so.12), but mpich-devel provides the symbolic link (i.e. libmpi.so) needed for linking.

How reproducible:
Always

Steps to Reproduce:
1. Without package mpich-devel installed, install hdf5-mpich-devel and its dependences.
2. [Matthew@strider ~]$ module load mpi/mpich-x86_64
3. Try to compile a program e.g. test.c:
   [Matthew@strider ~]$ mpicc -o test.exe test.c

Actual results:

/usr/bin/ld: cannot find -lmpi
collect2: error: ld returned 1 exit status

Expected results:

[Matthew@strider ~]$ mpicc -o test.out test.c
produces binary test.out

Additional info:

Installing package mpich-devel fixes this. The hdf5-openmpi-devel package correctly requires openmpi-devel, so this packaging issue is not an issue for for the OpenMPI implementation:

diff <(dnf repoquery --requires hdf5-openmpi-devel) <(dnf repoquery --requires hdf5-mpich-devel)
1c1,2
< Last metadata expiration check performed 4:43:57 ago on Wed Mar  2 10:22:04 2016.
---
> Waiting for process with pid 27750 to finish.
> Last metadata expiration check performed 4:43:59 ago on Wed Mar  2 10:22:04 2016.
3,4c4,5
< hdf5-openmpi(x86-32) = 1.8.14-3.fc22
< hdf5-openmpi(x86-64) = 1.8.14-3.fc22
---
> hdf5-mpich(x86-32) = 1.8.14-3.fc22
> hdf5-mpich(x86-64) = 1.8.14-3.fc22
13c14
< openmpi-devel
---
> mpich