gmm: 5.1 -> 5.3 (#47686)

pkgs/development/libraries/gmm/default.nix

···
 
 stdenv.mkDerivation rec {
   name = "gmm-${version}";
-  version = "5.1";
+  version = "5.3";
 
   src = fetchurl {
-    url ="http://download.gna.org/getfem/stable/${name}.tar.gz";
-    sha256 = "0di68vdn34kznf96rnwrpb3bbm3ahaczwxd306s9dx41kcqbzrlh";
+    url = "mirror://savannah/getfem/stable/${name}.tar.gz";
+    sha256 = "0lkjd3n0298w1dli446z320sn7mqdap8h9q31nydkbw2k7b4db46";
   };
 
   meta = with stdenv.lib; {
     description = "Generic C++ template library for sparse, dense and skyline matrices";
-    homepage = http://home.gna.org/getfem/gmm_intro.html;
+    homepage = http://getfem.org/gmm.html;
     license = licenses.lgpl21Plus;
     platforms = platforms.unix;
   };