anchor.diff:      "rpanel" # I could not make Tcl to recognize BWidget. HELP WANTED!
       "RQuantLib" # requires QuantLib
       "RSAP" # requires SAPNWRFCSDK
  -    "rgp" # fails self-test
  -    "rgpui" # depends on broken rgp
       "RSeed" # requires RBGL, and graph
       "rsig" # requires survcomp
       "RSNPset" # requires qvalue
  
positive.code:     "REBayes" # requires Rmosek
      "RefFreeEWAS" # requires isva
      "retistruct" # depends on broken RImageJROI
      "RImageJROI" # requires spatstat
      "rjade" # requires V8 to build
      "rJPSGCS" # requires chopsticks
  
negative.code:     "qtlnet" # requires pcalg
      "qtpaint" # can't find QtCore libraries
      "QuACN" # requires graph, RBGL
      "quanteda" # fails to build
      "QuasiSeq" # requires edgeR
      "RADami" # requires Biostrings
      "raincpc" # SDMTools.so: undefined symbol: X
      "rainfreq" # SDMTools.so: undefined symbol: X
      "RAM" # requires Heatplus
      "RapidPolygonLookup" # depends on broken PBSmapping
      "RAPIDR" # requires Biostrings, Rsamtools, and GenomicRanges
      "RbioRXN" # requires fmcsR, and KEGGREST
      "RcmdrPlugin_seeg" # requires seeg
      "Rcplex" # requires cplexAPI
      "RcppAPT" # configure script depends on /bin/sh
      "RcppRedis" # requires Hiredis
      "rDEA" # no such file or directory
      "RDieHarder" # requires libdieharder
  