François-Xavier Carton fx.carton91@gmail.com ml@gentoo.org ML sci-mathematics@gentoo.org Gentoo Mathematics Project Why3 is a platform for deductive program verification. It provides a rich language for specification and programming, called WhyML, and relies on external theorem provers, both automated and interactive, to discharge verification conditions. Why3 comes with a standard library of logical theories (integer and real arithmetic, Boolean operations, sets and maps, etc.) and basic programming data structures (arrays, queues, hash tables, etc.). A user can write WhyML programs directly and get correct-by-construction OCaml programs through an automated extraction mechanism. WhyML is also used as an intermediate language for the verification of C, Java, or Ada programs. Add sci-mathematics/coq support Build the IDE x11-libs/gtk+ Use Re (dev-ml/re) instead of Str for regular expressions Add support for outputting S-expressions with dev-ml/ppx_sexp_conv Use Zarith (dev-ml/zarith) instead of Nums (dev-ml/num) for computations Enable compression of session files