document the new update framework for bulk builds.

1 files changed, 11 insertions, 1 deletions

diff --git a/share/man/man7/ports.7 b/share/man/man7/ports.7
index fdad1b24ef2..1e9f22dd231 100644
--- a/share/man/man7/ports.7
+++ b/share/man/man7/ports.7
@@ -23,7 +23,7 @@
 .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 .\"
-.\" $OpenBSD: ports.7,v 1.46 2004/10/27 03:10:24 jaredy Exp $
+.\" $OpenBSD: ports.7,v 1.47 2004/11/17 11:06:25 espie Exp $
 .\" $FreeBSD: ports.7,v 1.7 1998/06/23 04:38:50 hoek Exp $
 .\"
 .Dd January 25, 1998
@@ -339,6 +339,16 @@ packages, and cleaning up old bulk cookies.
 .Pp
 If any of these conditions is not met, the package build may run into weird
 problems.
+.Pp
+Some experimental framework allows for building a new set of packages
+without first uninstalling the old ones: move the old packages away,
+remove all bulk cookies and update cookies, and use the
+.Ar update
+target with
+.Ev FORCE_UPDATE
+set to
+.Sq Yes
+for the build.
 .Sh NETWORK CONFIGURATION
 The variables pertaining to network access have been marshalled into
 .Pa ${PORTSDIR}/infrastructure/templates/network.conf.template .