defvalopt '--existing-package','', '.*', \$existing_package;
defvalopt '--build-products-dir','','.*', \$buildproductsdir;
defvalopt '--clean', '', $cleanmode_re, \$cleanmode;
defvalopt '--existing-package','', '.*', \$existing_package;
defvalopt '--build-products-dir','','.*', \$buildproductsdir;
defvalopt '--clean', '', $cleanmode_re, \$cleanmode;