nss modules from samba, like libnss_winbind, will be used by
musl-nscd-devel, and therefore should use its headers for the
definitions of return values and others.
Without musl-nscd-devel to provide <nss.h>, samba uses a fallback header
that carries completely incompatible return value definitions.
Co-authored-by: Érico Nogueira <erico.erc@gmail.com>