/sources/contrib/fernan/nhc98/src/libraries/base/Control/Concurrent/
      4091 2009-09-19 Chan.hs
      3324 2009-09-19 MVar.hs
      2324 2009-09-19 QSem.hs
      2191 2009-09-19 QSemN.hs
      3369 2009-09-19 SampleVar.hs