The libnss_winbind and libnss_wins libraries link with libthread,
which sometimes causes session to hang.
Removing libthread from Makefile variable WINBIND_NSS_LDSHFLAGS
resolves this for libnss_winbind, but not libnss_wins for which
there isn't separate LDSHFLAGS variable.
Note that I discovered this for Solaris 8.
On Solaris 9 it works without fixing but it's still
incorrect to link thread library for process which does not
know about it and is not multithreaded (cron, sh etc.)
Please see also bug #2090
please retest against 3.0.20a (the current SAMBA_3_0_RELEASE branch) which will
publically be availebl next week.