Allow ${PACKAGES} to be a symbolic link to another partition with more space.

Commmon bits OK up to & including 8.2-RELEASE

*** 4.11/ports/Mk/bsd.port.mk.orig	Wed Jun 22 16:30:38 2005
--- new/ports/Mk/bsd.port.mk	Thu Jun 23 00:46:18 2005
***************
*** 3297,3304 ****
  
  .if !target(do-package)
  do-package: ${TMPPLIST}
! 	@if [ -d ${PACKAGES} ]; then \
! 		if [ ! -d ${PKGREPOSITORY} ]; then \
  			if ! ${MKDIR} ${PKGREPOSITORY}; then \
  				${ECHO_MSG} "=> Can't create directory ${PKGREPOSITORY}."; \
  				exit 1; \
--- 3297,3304 ----
  
  .if !target(do-package)
  do-package: ${TMPPLIST}
! 	@if [ -e ${PACKAGES} ]; then \
! 		if [ ! -e ${PKGREPOSITORY} ]; then \
  			if ! ${MKDIR} ${PKGREPOSITORY}; then \
  				${ECHO_MSG} "=> Can't create directory ${PKGREPOSITORY}."; \
  				exit 1; \
***************
*** 3334,3340 ****
  .if !target(package-links)
  package-links: delete-package-links
  	@for cat in ${CATEGORIES}; do \
! 		if [ ! -d ${PACKAGES}/$$cat ]; then \
  			if ! ${MKDIR} ${PACKAGES}/$$cat; then \
  				${ECHO_MSG} "=> Can't create directory ${PACKAGES}/$$cat."; \
  				exit 1; \
--- 3334,3340 ----
  .if !target(package-links)
  package-links: delete-package-links
  	@for cat in ${CATEGORIES}; do \
! 		if [ ! -e ${PACKAGES}/$$cat ]; then \
  			if ! ${MKDIR} ${PACKAGES}/$$cat; then \
  				${ECHO_MSG} "=> Can't create directory ${PACKAGES}/$$cat."; \
  				exit 1; \
***************
*** 3343,3349 ****
  		${LN} -sf `${ECHO_CMD} $$cat | ${SED} -e 'sa[^/]*a..ag'`/${PKGREPOSITORYSUBDIR}/${PKGNAME}${PKG_SUFX} ${PACKAGES}/$$cat; \
  	done
  .if !defined(NO_LATEST_LINK)
! 	@if [ ! -d ${PKGLATESTREPOSITORY} ]; then \
  		if ! ${MKDIR} ${PKGLATESTREPOSITORY}; then \
  			${ECHO_MSG} "=> Can't create directory ${PKGLATESTREPOSITORY}."; \
  			exit 1; \
--- 3343,3349 ----
  		${LN} -sf `${ECHO_CMD} $$cat | ${SED} -e 'sa[^/]*a..ag'`/${PKGREPOSITORYSUBDIR}/${PKGNAME}${PKG_SUFX} ${PACKAGES}/$$cat; \
  	done
  .if !defined(NO_LATEST_LINK)
! 	@if [ ! -e ${PKGLATESTREPOSITORY} ]; then \
  		if ! ${MKDIR} ${PKGLATESTREPOSITORY}; then \
  			${ECHO_MSG} "=> Can't create directory ${PKGLATESTREPOSITORY}."; \
  			exit 1; \