Just (arg2_tycon,_) = maybe_arg2_tycon
can't_see_datacons_error thing ty
- = pprError "ERROR: Can't see the data constructor(s) for _ccall_/_casm_ "
+ = pprError "ERROR: Can't see the data constructor(s) for _ccall_/_casm_ (try compiling with -fno-prune-tydecls ..)"
(hcat [text thing, text "; type: ", ppr (PprForUser opt_PprUserLength) ty])
\end{code}