Description

mpif90 -showme:compile requires these flags
-I/opt/homebrew/Cellar/open-mpi/4.1.5/include -Wl,-flat_namespace -Wl,-commons,use_dylibs -I/opt/homebrew/Cellar/open-mpi/4.1.5/lib

But the commons flag is not recognized by ld anymore. For example, with the example MPI packags

federico@Federicos-MBP metapackage_mpi % fpm build
 + which mpiexec
/opt/homebrew/bin/mpiexec
test_mpi                               failed.
[100%] Compiling...
ld: unknown options: -commons -commons
collect2: error: ld returned 1 exit status
<ERROR> Compilation failed for object " test_mpi "
<ERROR> stopping due to failed compilation
STOP 1

This is likely the same issue as pmodels/mpich#6684 Intel forum

I fear the only way to solve this issue is to conditionally remove those flags based on the current OS and MPI version, not exactly nice, at least until a new OpenMPI homebrew release will fix this.

Expected Behaviour

Should just work

Version of fpm

0.9.0, alpha

Platform and Architecture

MacOS 14, homebrew OpenMPI 4.1.5

Additional Information

No response