$ prefix = F$ENVIRONMENT("DEFAULT") - ".UU]" + "]"
$ prefix = F$PARSE(prefix,,,,"NO_CONCEAL") - "][" - ".;"
$ prefixbase = prefix - "]"
-$! Add ROOT to make install PERL_ROOT differ from build directory.
-$ prefix = prefixbase + "ROOT.]"
+$! Add _ROOT to make install PERL_ROOT differ from build directory.
+$ prefix = prefixbase + "_ROOT.]"
$ ENDIF
$ src = prefix
$!: determine root of directory hierarchy where package will be installed.