On operating systems such as FreeBSD and NetBSD where
a libzsh is needed, make check will not work before a
make install because it fails to find the libzsh
shared object. The problem is that only the
install.modules make target is used which doesn't
include the libzsh. Cygwin is not affected. For more
details see zsh-workers/14450 & 14451.
Trying to find someone with FreeBSD to try this.