diff -up expect-5.44.1.15/example/mkpasswd.orig expect-5.44.1.15/example/mkpasswd

--- expect-5.44.1.15/example/mkpasswd.orig	2010-03-08 16:01:05.518378075 +0100

+++ expect-5.44.1.15/example/mkpasswd	2010-03-08 16:01:27.408388162 +0100

@@ -92,7 +92,14 @@ proc insert {pvar char} {

 }

 proc rand {m} {

-    expr {int($m*rand())}

+    set device /dev/urandom            ;# /dev/random can block

+    set fileId [open $device r]

+    binary scan [read $fileId 4] i1 number

+    set clipped [expr $number % $m]

+#    puts "number is $number"

+#    puts "clipped is $clipped"

+    close $fileId

+    return $clipped

 }

 # choose left or right starting hand