--->  Skipping 'print/teTeX-base' because a requisite port 'devel/autoconf' failed (specify -k to force)
** Listing the failed packages (-:ignored / *:skipped / !:failed)
        ! devel/autoconf-wrapper        (install error)
        * devel/autoconf
        * print/teTeX-base

===>  Installing for xcb-util-0.3.8,1
===>   xcb-util-0.3.8,1 depends on file: /usr/local/libdata/pkgconfig/xau.pc - found
===>   xcb-util-0.3.8,1 depends on file: /usr/local/libdata/pkgconfig/xdmcp.pc - found
===>   Generating temporary packing list
===>  Checking if x11/xcb-util already installed
===>   xcb-util-0.3.8,1 is already installed
      You may wish to ``make deinstall'' and install this port again
      by ``make reinstall'' to upgrade it properly.
      If you really wish to overwrite the old port of x11/xcb-util
      without deleting it first, set the variable "FORCE_PKG_REGISTER"
      in your environment or the "make install" command line.
*** Error code 1

Stop in /usr/ports/x11/xcb-util.
*** Error code 1

Stop in /usr/ports/x11/xcb-util-renderutil.
** Command failed [exit code 1]: /usr/bin/script -qa /tmp/portinstall20121129-32940-1alk3fu-0 env make
** Fix the problem and try again.
** Listing the failed packages (-:ignored / *:skipped / !:failed)
        ! x11/xcb-util-renderutil       (unknown build error)
Command failed [exit code 1]: /usr/local/sbin/portinstall x11/xcb-util-renderutil