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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
+
+<pkgmetadata>
+ <maintainer type="person" proxied="yes">
+ <name>François-Xavier Carton</name>
+ <email>fx.carton91@gmail.com</email>
+ </maintainer>
+ <maintainer type="project">
+ <email>ml@gentoo.org</email>
+ <name>ML</name>
+ </maintainer>
+ <longdescription>
+ 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.
+ </longdescription>
+ <use>
+ <flag name="coq">Add <pkg>sci-mathematics/coq</pkg> support</flag>
+ <flag name="gtk">Build the IDE <pkg>x11-libs/gtk+</pkg></flag>
+ <flag name="re">Use Re (<pkg>dev-ml/re</pkg>) instead of Str for regular expressions</flag>
+ <flag name="sexp">Add support for outputting S-expressions with <pkg>dev-ml/ppx_sexp_conv</pkg></flag>
+ <flag name="zarith">Use Zarith (<pkg>dev-ml/zarith</pkg>) instead of Nums (<pkg>dev-ml/num</pkg>) for computations</flag>
+ <flag name="zip">Enable compression of session files</flag>
+ </use>
+</pkgmetadata>