2 * Ropes for strings + buffers (unicode)
4 ** regexes and rich string library over ropes (PCRE?)
8 * Calendar library (TAI?)
14 * libbenchmark (currently only Sys.time_f)
18 * Everything from Extlib, Annexlib, missinglib, xstr
20 * merge fileutils into stdlib
25 * auto-include any types from a .mli file into the corresponding .ml
28 * Standard set of CamlP4 macros