anchor.diff:          autoConfigureFlags = condConcat "" configFlags check;
           autoMakeFlags = condConcat "" buildFlags check;
           useConfig = getAttr ["useConfig"] false args;
  -        buildInputs = 
  +        realBuildInputs = 
                   lib.closePropagation ((if useConfig then 
                           autoBuildInputs else 
                           getAttr ["buildInputs"] [] args)++
  
positive.code:         } else {}) // extraDerivationAttrs)
          );
  
  	builderDefsPackage = bd: func: args: (composedArgsAndFun 
  	  (innerBuilderDefsPackage bd func) ((func (bd // args)) // args));
  
     generateFontsFromSFD = noDepEntry(''
             for i in *.sfd; do
                  ${args.fontforge}/bin/fontforge -c \
                          'Open($1);
                          ${optionalString (args ? extraFontForgeCommands) args.extraFontForgeCommands
                          }Reencode("unicode");
  
negative.code:                 }
  
                  pkgs=\"\"
                  for i in \$NIX_GCC ${toString realBuildInputs}; do
                      findInputs \$i
                  done
  
  