* configure.in (case $THREADS): Add *-*-freebsd* configuration.
	(HAVE_GETHOSTBYADDR_R): Create a valid, non-optimal
	configuration when gethostbyaddr_r exists yet no prototype
	exists in netdb.h.
	* configure: Rebuilt.
	* posix-threads.cc (INTR): Reuse path for LINUX_THREADS
	with FREEBSD_THREADS.  However, comment different reason.

From-SVN: r46476