-tcfail045.hs:10: Type constructor or class not in scope: `PrimIO'
+tcfail045.hs:10:
+ Unacceptable instance type for ccall-ish class
+ class CCallable type Socket
+
+tcfail045.hs:13:
+ No instance for: `CCallable Socket'
+ arising from an argument in the _ccall_ to `foo', namely `x', at tcfail045.hs:13
+
Compilation had errors