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Bug#1107485: ampliconnoise FTCBFS: misses mpi flags

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Source: ampliconnoise
Version: 1.29-15
Tags: patch
User: debian-cross@lists.debian.org
Usertags: ftcbfs

ampliconnoise fails to cross build from source as it misses mpi compiler
flags. In theory, it uses mpicc, but cross builds override CC with a
non-mpi cross compiler and that's where flags go missing. Fundamentally,
mpicc and cross building are incompatible. For openmpi, the solution is
to use pkgconf, but mpich does not provide mpi-c anymore. I'm proposing
a compromise here: Attempt to use pkgconf to add the flags, but do not
fail when pkgconf doesn't work (e.g. on 32bit archs that use mpich).
Then native building will continue to work everywhere (as it continues
to use mpicc) while cross building will work for 64bit targets (where
openmpi is used). Cross builds to 32bit architectures remain broken for
now. What do you think?

Helmut

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Bug#1107485: ampliconnoise FTCBFS: misses mpi flags Helmut Grohne <helmut@subdivi.de> - 2025-06-08 11:00 +0200

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