2 Cannot generalise these overloadings (in a _ccall_):
3 `PrelGHC.CReturnable a' arising from the result of the _ccall_ to `f' at cc004.hs:8
5 Cannot generalise these overloadings (in a _ccall_):
6 `PrelGHC.CReturnable a' arising from the result of the _ccall_ to `f' at cc004.hs:15