If psutils installed with a different FLAVOR such as a4, a2ps port build fails, I used the change below.
Regards Nigel Taylor Index: ports/print/a2ps/Makefile =================================================================== RCS file: /cvs/ports/print/a2ps/Makefile,v retrieving revision 1.43 diff -u -r1.43 Makefile --- ports/print/a2ps/Makefile 21 Mar 2010 10:14:50 -0000 1.43 +++ ports/print/a2ps/Makefile 31 May 2010 11:41:03 -0000 @@ -29,7 +29,7 @@ CONFIGURE_STYLE= gnu MODGNU_CONFIG_GUESS_DIRS= ${WRKSRC} ${WRKSRC}/auxdir -RUN_DEPENDS= ::print/psutils +RUN_DEPENDS= :psutils-*:print/psutils BUILD_DEPENDS= ${RUN_DEPENDS} \ ::devel/gperf