otags 3.09.3-3 (i386 binary) in ubuntu karmic

 otags is a tool for building "TAGS" files for emacs and vi. TAGS
 files provide the editor with an index table, mapping important
 symbol names to locations in source files. This allows the developer
 to quickly jump to a function in a different file than the one he is
 currently visiting in the buffer.
 .
 otags parses a set of OCaml source files in either the standard or
 revised syntax, and creates a TAGS file with the locations
 of functions, type declarations, record fields, sum type constructors,
 etc...