Hello,

On armhf-linux, 'nss' fails early in the build process due to an
undefined reference to "PR_Assert":

https://ci.guix.gnu.org/log/5cqmmjd9a8h05l8y352z1pq4mlyd6w21-nss-3.45

This is almost certainly because of this upstream commit, which swaps
out the curve25519 implementation for 32-bit ARM systems:

https://hg.mozilla.org/projects/nss/rev/7b749ff400db3ecab87f394c091ea0831254e674

There is some discussion about it in this ticket:
https://bugzilla.mozilla.org/show_bug.cgi?id=1550579

I don't know how all those people were able to benchmark the change.
Perhaps we are missing something in our build flags?

With NSS 3.45 now in the 'master' branch, we should fix this issue
quickly as armhf users are currently unable to update their systems.

I filed an upstream ticket here, but no response yet:
https://bugzilla.mozilla.org/show_bug.cgi?id=1571316