I think it was about 60Mb of source, around 1000 packages and stand-alone procs. Basically the perl pulled a list of scoped function names from the DDL, did a

I think it was about 60Mb of source, around 1000 packages and stand-alone procs. Basically the perl pulled a list of scoped function names from the DDL, did a text index on the executable code, and searched the index for references to those functions, creating a list of [from.function, to.function] pairs that I fed into prolog.