MUSL doesn't provide PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP as
it's only glibc and as the MACRO say, it's NP (not portable).
Add patch to check for this and disable overwriting the function
accordingly.
Fixes: 9bdf723476 ("libunistring: update to 1.4.1")
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Add libunistring in order to link to gettext
and other packages directly
instead of the built-in substitute for it.
Signed-off-by: Michael Pratt <mcpratt@pm.me>