[1 of 3] Processing p
  [1 of 2] Compiling H[sig]           ( p/H.hsig, nothing )
  [2 of 2] Compiling A                ( p/A.hs, nothing )
[2 of 3] Processing q
  Instantiating q
  [1 of 1] Compiling H                ( q/H.hs, bkpfail09.out/q/H.o )
[3 of 3] Processing r
  [1 of 3] Compiling H2[sig]          ( r/H2.hsig, nothing )
  [2 of 3] Instantiating p

Command line argument: -unit-id p[H=H]:0:0: error: [GHC-93011]
    • ‘H’ is exported by the hsig file, but not exported by the implementing module ‘q:H’
    • while checking that q:H implements signature H in p[H=q:H]

Command line argument: -unit-id p[H=H]:0:0: error: [GHC-93011]
    • ‘H’ is exported by the hsig file, but not exported by the implementing module ‘q:H’
    • while checking that q:H implements signature H in p[H=q:H]