texlive_base not building if already installed

[Matthieu Herrb]

It fails with:

Error in package:
/local/obj/ports/texlive_base-2007p0/fake-i386//usr/local/man/man1/tcdialog.1
does not exist

This is caused by the rule in utils/dialog/Makefile.in which only
installs tcdialog.1 into $DESTDIR if it doesn't exist:

$(man1dir)/tcdialog.$(manext): dialog.man
        $(INSTALL_DATA) $(srcdir)/dialog.man ${DESTDIR}$@

-- 
Matthieu Herrb