[libdv-dev] FreeBSD 5.2 pthreads use

[Steven M. S. <sms@2BSD.COM>]

Hi -

	Small patch to configure.ac to accomodate FreeBSD (and OpenBSD)
	which have neither integrated threads in libc nor -lpthreads.

	Instead you need to add "-pthreads" to the CFLAGS and LDFLAGS.

	Attached is a patch which works but if there's a better way that's
	fine too ;)

	Cheers,
	Steven Schultz