Change ln -s to ln -fs so that package target can be run more than once

since it does not register its completion in the state file.

git-svn-id: https://svn.macports.org/repository/macports/trunk/base@1534 d073be05-634f-4543-b044-5fe20cf6d1d6

src/port1.0/portpackage.tcl

@@ -167,9 +167,9 @@ proc package_pkg {portname portversion entry} {
 	write_description_plist ${pkgpath}/Contents/Resources/Description.plist $portname $portversion $description
 	system "cp ${portresourcepath}/package/background.tiff ${pkgpath}/Contents/Resources/background.tiff"
 	system "mkbom ${destpath} ${pkgpath}/Contents/Archive.bom"
-	system "cd ${pkgpath}/Contents/Resources/ && ln -s ../Archive.bom ${portname}.bom"
+	system "cd ${pkgpath}/Contents/Resources/ && ln -fs ../Archive.bom ${portname}.bom"
 	system "cd ${destpath} && pax -w -z . > ${pkgpath}/Contents/Archive.pax.gz"
-	system "cd ${pkgpath}/Contents/Resources/ && ln -s ../Archive.pax.gz ${portname}.pax.gz"
+	system "cd ${pkgpath}/Contents/Resources/ && ln -fs ../Archive.pax.gz ${portname}.pax.gz"
 
 	write_sizes_file ${pkgpath}/Contents/Resources/${portname}.sizes ${pkgpath} ${destpath}