undefined erlang snot?

[Ulf Wiger]

I tried running a program compiled for OTP R7B in OTP R9B,
and got the following crash:

** exited: {undef,[{erlang,snot,[true]},
                   {sysFs,find,3},
                   {recomp,process_app_dir,2},
                   {recomp,process_apps,2},
                   {recomp,build,3},
                   {erl_eval,expr,3},
                   {erl_eval,exprs,4},
                   {shell,eval_loop,2}]} **
** Terminating erlang (nonode@REDACTED) **

The line of code causing this must be:

  Thorough = not(lists:member(lazy, Opts)),


I don't quite recall if running OTP R7B applications in OTP
R9B is _guaranteed_ to work, but it does seem to work most
of the time. Is the above problem an OTP bug then?

/Uffe
-- 
Ulf Wiger, Senior Specialist,
   / / /   Architecture & Design of Carrier-Class Software
  / / /    Strategic Product & System Management
 / / /     Ericsson Telecom AB, ATM Multiservice Networks