anchor.diff:    gradle_2_5 = self.gradleGen.gradle_2_5;
   
     gperf = callPackage ../development/tools/misc/gperf { };
  +  # 3.1 changed some parameters from int to size_t, leading to mismatches.
     gperf_3_0 = callPackage ../development/tools/misc/gperf/3.0.x.nix { };
   
     grail = callPackage ../development/libraries/grail { };
  
positive.code: 
    bibletime = callPackage ../applications/misc/bibletime { };
  
    bitkeeper = callPackage ../applications/version-management/bitkeeper { };
  
    bitlbee = callPackage ../applications/networking/instant-messengers/bitlbee { };
    bitlbee-plugins = callPackage ../applications/networking/instant-messengers/bitlbee/plugins.nix { };
  
negative.code: 
    jenkins-job-builder = pythonPackages.jenkins-job-builder;
  
    kconfig-frontends = callPackage ../development/tools/misc/kconfig-frontends {
      gperf = gperf_3_0;
    };
  
    kcov = callPackage ../development/tools/analysis/kcov { };
  
  