[Debichem-devel] Bug#1075979: [Help] molds: FTBFS with mpich as default MPI provider: /usr/bin/ld: cannot find -lmpi_cxx: No such file or directory

[Andreas Tille]

Control: tags -1 help
Thanks

Hi,

today molds (from Debichem team) came up as candidate for the Bug of the
Day[1].  I considered bug #1075979 easy to fix by simply adding
libopenmpi-dev to Build-Depends since

$ apt-file search libmpi_cxx.so | grep -- -dev
libopenmpi-dev: /usr/lib/x86_64-linux-gnu/libmpi_cxx.so
libopenmpi-dev: /usr/lib/x86_64-linux-gnu/openmpi/lib/libmpi_cxx.so

but this is obviously not the case for the 5.x series of libopenmpi-dev
which does not contain this library any more.  Any hints for
replacements or other ways to make the linker happy are welcome since
the problem remains.

Thank you for any help
   Andreas.


[1] https://salsa.debian.org/tille/tiny_qa_tools/-/wikis/Tiny-QA-tasks

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