sage: 6.1.1 -> 6.8

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

@@ -1,27 +1,32 @@
 { stdenv, fetchurl, m4, perl, gfortran, texLive, ffmpeg, tk
-, imagemagick, liblapack
+, imagemagick, liblapack, python, openssl, libpng
+, which
 }:
 
 stdenv.mkDerivation rec {
-  name = "sage-6.1.1";
+  name = "sage-6.8";
 
   src = fetchurl {
     url = "mirror://sagemath/${name}.tar.gz";
-    sha256 = "0kbzs0l9q7y34jv3f8rd1c2mrjsjkdgaw6mfdwjlpg9g4gghmq5y";
+    sha256 = "102mrzzi215g1xn5zgcv501x9sghwg758jagx2jixvg1rj2jijj9";
   };
 
-  buildInputs = [ m4 perl gfortran texLive ffmpeg tk imagemagick liblapack ];
+  buildInputs = [ m4 perl gfortran texLive ffmpeg tk imagemagick liblapack
+                  python openssl libpng which];
+
+  patches = [ ./spkg-singular.patch ./spkg-python.patch ./spkg-git.patch ];
 
   enableParallelBuilding = true;
 
   preConfigure = ''
     export SAGE_NUM_THREADS=$NIX_BUILD_CORES
-    sed -i 's/if ! [ -d "$HOME" ]/if [ -d "$HOME" ]/' src/bin/sage-env
-  '' + stdenv.lib.optionalString stdenv.isDarwin ''
-    sed -i "s/ld_version = try_run('ld  -v')/ld_version = 'Apple'/" \
-      build/pkgs/atlas/configuration.py
+    export SAGE_ATLAS_ARCH=fast
+    mkdir -p $out/sageHome
+    export HOME=$out/sageHome
   '';
 
+  installPhase = ''DESTDIR=$out make install'';
+
   meta = {
     homepage = "http://www.sagemath.org";
     description = "A free open source mathematics software system";