anchor.diff:  , prePhases ? []
   , postPhases ? []
   , buildInputs ? []
  +, preHook ? ""
  +, postHook ? ""
   , ... } @ args:
   
   let
  
positive.code:       . ${./functions.sh}
        origSrc=$src
        src=$(findTarball $src)
      '';
  
      preHook = ''
  
negative.code:         shopt -s expand_aliases
          alias make="scan-build -o _clang_analyze_$name --html-title='Scan results for $name' make"
        fi
  
        ${preHook}
      '';
  
      # Clean up after analysis
  