Building unicorn on Fedora's s390x build hosts fails with the error message below. I suspect this is due to a compiler change or perhaps a change to a dependency.

Reproducible: Always

Steps to Reproduce:
Run "fedpkg build" from the package's Git repository.
Actual Results:  
See https://kojipkgs.fedoraproject.org//work/tasks/8545/103368545/build.log.

Here is a summary:

/usr/bin/ld: libunicorn.so.2: undefined reference to `helper_atomic_ldo_le_mmu_ppc64'
/usr/bin/ld: libunicorn.so.2: undefined reference to `helper_atomic_ldo_be_mmu_ppc64'
/usr/bin/ld: libunicorn.so.2: undefined reference to `helper_atomic_cmpxchgo_le_mmu_aarch64'
/usr/bin/ld: libunicorn.so.2: undefined reference to `helper_atomic_cmpxchgo_be_mmu_aarch64'
/usr/bin/ld: libunicorn.so.2: undefined reference to `helper_atomic_sto_be_mmu_s390x'
/usr/bin/ld: libunicorn.so.2: undefined reference to `helper_atomic_ldo_be_mmu_s390x'
/usr/bin/ld: libunicorn.so.2: undefined reference to `helper_atomic_cmpxchgo_be_mmu_s390x'
/usr/bin/ld: libunicorn.so.2: undefined reference to `helper_atomic_cmpxchgo_be_mmu_ppc64'
/usr/bin/ld: libunicorn.so.2: undefined reference to `helper_atomic_sto_be_mmu_ppc64'
/usr/bin/ld: libunicorn.so.2: undefined reference to `helper_atomic_cmpxchgo_le_mmu_ppc64'
/usr/bin/ld: libunicorn.so.2: undefined reference to `helper_atomic_sto_le_mmu_ppc64'
collect2: error: ld returned 1 exit status
gmake[2]: *** [CMakeFiles/sample_batch_reg.dir/build.make:98: sample_batch_reg] Error 1
gmake[1]: *** [CMakeFiles/Makefile2:779: CMakeFiles/sample_batch_reg.dir/all] Error 2


A similar report upstream: https://github.com/unicorn-engine/unicorn/issues/1840