PVS is a verification system: that is, a specification language integrated with support tools and a theorem prover. The latest version can be downloaded here: http://pvs.csl.sri.com/download-open/pvs-4.2-source.tgz
Created attachment 180966 [details] sci-mathematics/pvs/pvs-4.2.ebuild Here is a suggested ebuild.
Created attachment 180968 [details, diff] sci-mathematics/pvs/files/pvs-4.2-patch-makefile-quote A patch needed by the ebuild right above.
Created attachment 180987 [details] sci-mathematics/pvs/pvs-4.2.ebuild Forgot the generate TCCs after the compilation.
if you have problem compiling dev-lisp/cmucl with gcc 4.x, try this ebuild: http://bugs.gentoo.org/show_bug.cgi?id=257652 (I forced the dependency in the ebuild anyway...)
Created attachment 182421 [details] sci-mathematics/pvs/pvs-4.2.ebuild A few clean up
Created attachment 186061 [details] sci-mathematics/pvs/pvs-4.2.ebuild A few clean ups
Created attachment 186211 [details, diff] sci-mathematics/pvs/files/pvs-4.2-patch-make
Created attachment 186212 [details] sci-mathematics/pvs/pvs-4.2.ebuild More clean ups
Created attachment 186214 [details, diff] sci-mathematics/pvs/files/pvs-4.2-patch-bddp
Created attachment 186215 [details, diff] sci-mathematics/pvs/files/pvs-4.2-patch-sbcl
Comment on attachment 186211 [details, diff] sci-mathematics/pvs/files/pvs-4.2-patch-make Also fix doc makefile now
Comment on attachment 186214 [details, diff] sci-mathematics/pvs/files/pvs-4.2-patch-bddp Update BDD Fix pointer on non 32bits arch
Comment on attachment 186215 [details, diff] sci-mathematics/pvs/files/pvs-4.2-patch-sbcl Allow pvs to build with sbcl
Created attachment 186217 [details] sci-mathematics/pvs/pvs-4.2-r1.ebuild More archs. On non x86 arch, it will build using sbcl, it's highly untested, use it at your on risk.
Comment on attachment 186214 [details, diff] sci-mathematics/pvs/files/pvs-4.2-patch-bddp It's backported from SVN
Comment on attachment 186215 [details, diff] sci-mathematics/pvs/files/pvs-4.2-patch-sbcl Patch from Jerry James: http://jjames.fedorapeople.org/pvs/
pain in the ass to maintain, I drop it for now