mpich
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Current embedded libfabric version fails to build on i386 on newer GCC versions
Encountered this while debugging #7597. The current embedded libfabric currently fails to build on i686 with new GCC versions. The Debian packaging team has patched libfabric in the meantime so it shouldn't be a significant issue for most users, but we should update after upstream merges.
Upstream has a pending PR merge: https://github.com/ofiwg/libfabric/pull/11028
The patch is messy and has been open for a while :( The same debian thread mentions it is fixed in libfabric 2.1.0. We should test that.