{ lib, stdenv, fetchFromGitHub, perl, mlton }: stdenv.mkDerivation { pname = "metis-prover"; version = "2.4.20200713"; src = fetchFromGitHub { owner = "gilith"; repo = "metis"; rev = "d17c3a8cf6537212c5c4bfdadcf865bd25723132"; sha256 = "phu1x0yahK/B2bSOCvlze7UJw8smX9zw6dJTpDD9chM="; }; nativeBuildInputs = [ perl ]; buildInputs = [ mlton ]; patchPhase = "patchShebangs ."; buildPhase = "make mlton"; installPhase = '' install -Dm0755 bin/mlton/metis $out/bin/metis ''; meta = with lib; { description = "Automatic theorem prover for first-order logic with equality"; homepage = "https://www.gilith.com/research/metis/"; license = licenses.mit; maintainers = with maintainers; [ gebner ]; platforms = platforms.unix; }; }