Adds gappa 1.2.0

Gappa is a tool intended to help verifying and formally proving
properties on numerical programs dealing with floating-point or
fixed-point arithmetic.

Homepage: http://gappa.gforge.inria.fr/

pkgs/applications/science/logic/gappa/default.nix

···
+{ stdenv, fetchurl, gmp, mpfr, boost }:
+
+stdenv.mkDerivation {
+  name = "gappa-1.2";
+
+  src = fetchurl {
+    url = https://gforge.inria.fr/frs/download.php/file/34787/gappa-1.2.0.tar.gz;
+    sha256 = "03hfzmaf5jm54sjpbks20q7qixpmagrfbnyyc276vgmiyslk4dkh";
+  };
+
+  buildInputs = [ gmp mpfr boost.dev ];
+
+  buildPhase = "./remake";
+  installPhase = "./remake install";
+
+  meta = {
+    homepage = http://gappa.gforge.inria.fr/;
+    description = "Verifying and formally proving properties on numerical programs dealing with floating-point or fixed-point arithmetic";
+    license = with stdenv.lib.licenses; [ cecill20 gpl2 ];
+    maintainers = with stdenv.lib.maintainers; [ vbgl ];
+    platforms = stdenv.lib.platforms.all;
+  };
+}

pkgs/top-level/all-packages.nix

···
     };
   };
 
+  gappa = callPackage ../applications/science/logic/gappa { };
+
   ginac = callPackage ../applications/science/math/ginac { };
 
   hol = callPackage ../applications/science/logic/hol { };