anchor.diff:        # target libraries and tools.
         ++ optional langAda ../gnat-cflags.patch
         ++ optional langFortran ../gfortran-driving.patch
  -      ++ optional hostPlatform.isDarwin ../gfortran-darwin-NXConstStr.patch;
  +      ++ optional hostPlatform.isDarwin ../gfortran-darwin-NXConstStr.patch
  +      ++ [(fetchpatch {
  +          name = "libc_name_p.diff"; # needed to build with gcc6
  +          url = "https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff_plain;h=ec1cc0263f1";
  +          sha256 = "01jd7pdarh54ki498g6sz64ijl9a1l5f9v8q2696aaxalvh2vwzl";
  +          excludes = [ "gcc/cp/ChangeLog" ];
  +        })]
  +      ;
   
       javaEcj = fetchurl {
         # The `$(top_srcdir)/ecj.jar' file is automatically picked up at
  
positive.code: { stdenv, fetchurl, noSysDirs
  , langC ? true, langCC ? true, langFortran ? false
  , langObjC ? targetPlatform.isDarwin
  , langObjCpp ? targetPlatform.isDarwin
  
negative.code: 
    hardeningDisable = [ "format" ];
  
    outputs = [ "out" "lib" "man" "info" ];
    setOutputFlags = false;
    NIX_NO_SELF_RPATH = true;
  
  