ports/74518: openoffice-1.1 build failure on 4-stable: dmake can't find target.mk

[Mikhail Teterin]

The problem here is that the user had the devel/dmake installed
already and OpenOffice's configure has decided to use it.

Unfortunately, our devel/dmake (4.1) is too old to understand the
DMAKEROOT environment variable, which OpenOffice's boostrap script is
setting.

The work-around is to uninstall the dmake port prior to building
OOo. The immediate fix is to mark OOo as conflicting with dmake.

The proper fix is to update the devel/dmake and make OOo properly
depend on it instead of building its own. Working on this one...

	-mi