-mv $main_dir ion3-$version.orig
-mv $doc_dir ion3-$version.orig/doc
-tar cf - ion3-$version.orig | gzip -c9 > ion3_$version.orig.tar.gz
+mv $main_dir $PACKAGE-$version.orig
+mv $doc_dir $PACKAGE-$version.orig/doc
+tar cf - $PACKAGE-$version.orig | gzip -c9 > $PACKAGE_$version.orig.tar.gz