anchor.diff:  
     # Packages which cannot be installed due to lack of dependencies or other reasons.
     brokenPackages = [
  +    "vmsbase" # broken build
  +    "vcfR" # broken build
  +    "strataG" # broken build
  +    "SSDM" # broken build
  +    "SimInf" # broken build
  +    "shazam" # broken build
       "rsvg" # broken build
       "Rothermel" # broken build
       "rfPermute" # broken build
  
positive.code:     "Surrogate" # depends on broken package nlopt
      "svglite" # depends on broken package gdtools
      "sybilSBML" # build is broken
      "synchronicity" # build is broken
      "synthpop" # build is broken
      "systemfit" # depends on broken package nlopt
      "TcGSA" # depends on broken package nlopt
      "TDMR" # depends on broken package nlopt
  
negative.code:     "x13binary" # broken build
      "fds" # broken build
      "exifr" # broken build
      "rite" # depends on broken package euroMix
      "MBCB" # depends on broken package euroMix
      "forensim" # depends on broken package euroMix
  