Found it... sort of

Found in the config file for Pidgin:

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for me pot o' gold" >&5
$as_echo_n "checking for me pot o' gold... " >&6; }
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
for ac_func in gethostid lrand48 timegm