gcc6: 6.4.0 -> 6.5.0

http://lists.gnu.org/archive/html/info-gnu/2018-10/msg00003.html

pkgs/development/compilers/gcc/6/default.nix

@@ -48,7 +48,7 @@ assert langGo -> langCC;
 with stdenv.lib;
 with builtins;
 
-let version = "6.4.0";
+let version = "6.5.0";
 
     inherit (stdenv) buildPlatform hostPlatform targetPlatform;
 
@@ -163,7 +163,7 @@ stdenv.mkDerivation ({
 
   src = fetchurl {
     url = "mirror://gnu/gcc/gcc-${version}/gcc-${version}.tar.xz";
-    sha256 = "1m0lr7938lw5d773dkvwld90hjlcq2282517d1gwvrfzmwgg42w5";
+    sha256 = "0i89fksfp6wr1xg9l8296aslcymv2idn60ip31wr9s4pwin7kwby";
   };
 
   inherit patches;