[1 of 3] Processing i
  Instantiating i
  [1 of 1] Compiling I                ( i/I.hs, bkp28.out/i/I.o )
[2 of 3] Processing p
  [1 of 1] Compiling A[sig]           ( p/A.hsig, nothing )
[3 of 3] Processing q
  [1 of 2] Compiling A[sig]           ( q/A.hsig, nothing )
  [2 of 2] Compiling B                ( q/B.hs, nothing )