--- Makefile.PL.orig 2015-05-29 01:36:20.000000000 -0700 +++ Makefile.PL 2015-05-29 01:36:50.000000000 -0700 @@ -14,6 +14,8 @@ } } +$worked = 1; + unless( $worked ) { warn "this module assumes you have a ps program in /bin/ps\n"; warn "you can override it by setting an environment variable,\n";