Hello!
I've got such a compilation error on code that was accepted by an
earlier GHC:
Expr/Names.hs:19:66:
GADT pattern match in non-rigid context for `TypeInt'
Tell GHC HQ if you'd like this to unify the context
In the pattern: TypeInt
In the pattern:
FunctionInfo {fiName = "name", fiReturnType = TypeInt}
In the pattern:
Call (FunctionInfo {fiName = "name", fiReturnType = TypeInt}) [dyn]
This was in a module which had no {-# OPTIONS_GHC -fglasgow-exts #-}.
I was preparing to file a bug report, but then I noticed that it's
enough to put -fglasgow-exts there to make the code compile.
I am reporting it because it may be confusing to others. Perhaps it
would be a good idea to advise trying -fglasgow-exts in the error
message?
Best regards
Tomasz
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