removing WRKDIR_LINKNAME on make clean

[frantisek holop]

hi there,

here is a first try for bsd.ports.mk to remove WRKDIR_LINKNAME
when doing make clean.

-f
-- 
there are 10 types of people: those that do binary, and those that don't.

Index: bsd.port.mk
===================================================================
RCS file: /cvs/ports/infrastructure/mk/bsd.port.mk,v
retrieving revision 1.972
diff -u -r1.972 bsd.port.mk
--- bsd.port.mk 14 Oct 2009 13:01:03 -0000      1.972
+++ bsd.port.mk 25 Oct 2009 20:01:39 -0000
@@ -2436,6 +2436,9 @@
 .  else
        @if [ -L ${WRKDIR} ]; then rm -rf `readlink ${WRKDIR}`; fi
        @rm -rf ${WRKDIR}
+.    if !empty(WRKDIR_LINKNAME)
+       @rm ${WRKDIR_LINKNAME}
+.    endif
 .  endif
 .elif ${_clean:L:Mbuild} && ${SEPARATE_BUILD:L} != "no"
        @rm -rf ${WRKBUILD} ${_CONFIGURE_COOKIE} ${_BUILD_COOKIE}