- (djm) [openbsd-compat/setproctitle.c] Don't fail to compile if a
   platform that is expected to use the reuse-argv style setproctitle
   hack surprises us by providing a setproctitle in libc; ok dtucker
 - (djm) [configure.ac] Unless specifically requested, only attempt
   to build Position Independent Executables on gcc >= 4.x; ok dtucker