From Fedora Project Wiki

Development Tasks

This page list various project where support for some or all our secondary arches is missing. You are free to pick one and work on it, but please let others know.

package upstream aarch64 arm i386 ppc ppc64 ppc64le s390(x) x86_64 notes
libseccomp http://sourceforge.net/projects/libseccomp/ wip yes yes no no no no yes wanted by systemd
luajit http://luajit.org/ no yes yes yes no no no yes
dyncall http://dyncall.org/ no yes yes yes no no no yes required by moarvm
openmpi http://www.open-mpi.org/ yes yes yes yes yes no no yes can be built with gcc atomics
boost-context http://www.boost.org/ no yes yes yes yes yes no yes ppc* fixed/added in 1.56+, https://github.com/boostorg/context
gperftools https://code.google.com/p/gperftools/ yes yes yes yes yes yes no yes
foo http://foo.org/ no yes yes yes no no no yes