cvc4: unstable-2017-05-18 -> 1.5

Signed-off-by: Austin Seipp <[e-mail]>

pkgs/applications/science/logic/cvc4/default.nix

···
-{ stdenv, fetchFromGitHub, cln, gmp, swig, pkgconfig, readline, libantlr3c,
-boost, jdk, autoreconfHook, python2, antlr3_4 }:
+{ stdenv, fetchurl, cln, gmp, swig, pkgconfig
+, readline, libantlr3c, boost, jdk, autoreconfHook
+, python2, antlr3_4
+}:
 
 stdenv.mkDerivation rec {
-  name = "cvc4-unstable-${version}";
-  version = "2017-05-18";
+  name = "cvc4-${version}";
+  version = "1.5";
 
-  src = fetchFromGitHub {
-    owner = "CVC4";
-    repo = "CVC4";
-    rev = "d77107cc56b0a089364c3d1512813701c155ea93";
-    sha256 = "085bjrrm33rl5pwqx13af9sgni9cfbg70wag6lm08jj41ws411xs";
+  src = fetchurl {
+    url = "http://cvc4.cs.stanford.edu/downloads/builds/src/cvc4-${version}.tar.gz";
+    sha256 = "0yxxawgc9vd2cz883swjlm76rbdkj48n7a8dfppsami530y2rvhi";
   };
 
   nativeBuildInputs = [ autoreconfHook pkgconfig ];
···
     "--with-readline"
     "--with-boost=${boost.dev}"
   ];
+
   preConfigure = ''
     patchShebangs ./src/
   '';