ratpoints: 2.1.3 -> 2.1.3.p4; add darwin support

pkgs/applications/science/math/ratpoints/default.nix

@@ -1,20 +1,36 @@
-{stdenv, fetchurl, gmp}:
+{ stdenv, fetchurl, fetchpatch, gmp }:
 stdenv.mkDerivation rec {
   name = "ratpoints-${version}";
-  version = "2.1.3";
+  version = "2.1.3.p4";
+
   src = fetchurl {
     url = "http://www.mathe2.uni-bayreuth.de/stoll/programs/ratpoints-${version}.tar.gz";
     sha256 = "0zhad84sfds7izyksbqjmwpfw4rvyqk63yzdjd3ysd32zss5bgf4";
   };
-  buildInputs = [gmp];
-  makeFlags = "INSTALL_DIR=$(out)";
+
+  enableParallelBuilding = true;
+
+  patches = [
+    (fetchpatch {
+      url = "https://git.sagemath.org/sage.git/plain/build/pkgs/ratpoints/patches/sturm_and_rp_private.patch?id=1615f58890e8f9881c4228c78a6b39b9aab1303a";
+      sha256 = "0q3wajncyfr3gahd8gwk9x7g56zw54lpywrl63lqk7drkf60mrcl";
+    })
+  ];
+
+  buildInputs = [ gmp ];
+
+  makeFlags = [ "CC=cc" ];
+  buildFlags = stdenv.lib.optional stdenv.isDarwin ["CCFLAGS2=-lgmp -lc -lm" "CCFLAGS=-UUSE_SSE"];
+  installFlags = [ "INSTALL_DIR=$(out)" ];
+
   preInstall = ''mkdir -p "$out"/{bin,share,lib,include}'';
+
   meta = {
     inherit version;
     description = ''A program to find rational points on hyperelliptic curves'';
     license = stdenv.lib.licenses.gpl2Plus;
     maintainers = [stdenv.lib.maintainers.raskin];
-    platforms = stdenv.lib.platforms.linux;
+    platforms = stdenv.lib.platforms.unix;
     homepage = http://www.mathe2.uni-bayreuth.de/stoll/programs/;
     updateWalker = true;
   };