3 Cannot generalise these overloadings (in a _ccall_):
4 `CReturnable b' arising from the result of the _ccall_ to `f' at cc004.hs:8
7 Cannot generalise these overloadings (in a _ccall_):
8 `CReturnable b' arising from the result of the _ccall_ to `f' at cc004.hs:15
10 Compilation had errors