enable script-wrapper compilers?

[minrk]

Comment:

openmpi has --enable-script-wrapper-compilers, which installs mpicc and friends as perl scripts, like mpich does with bash.

If we added this option, packages would no longer require openmpi in their build dependencies (they would require perl, though), because the compiler wrappers would be scripts, not executables. I think this would solve a lot of headaches for folks compiling against openmpi.

Weirdly, the pkg-config files don't seem to be installed. This seems like a bug? They are built and correct, just excluded from install.

[jakirkham]

Weirdly, the pkg-config files don't seem to be installed. This seems like a bug? They are built and correct, just excluded from install.

xref: open-mpi/ompi#12609

[leofang]

open-mpi/ompi#12628 is merged, perhaps we are unblocked?

[jakirkham]

For 5.0.4+, yes

Presumably this persists in 4.x

[minrk]

Note that they are considering removal of the script wrappers, since they appear to be mostly unmaintained and not used very often: open-mpi/ompi#12625

While it has been a pain to set up, it's working now and fairly reliable, so I'm reticent to remove all that setup if we're just going to need to put it back in a future release.