Friends
After 10 days of working on !15719 I have suddenly started getting
/home/simonpj/code/HEAD-19/libraries/ghc-boot-th-next/../ghc-internal/src/GHC/Internal/Classes.hs:10:17:
error: [GHC-04924]
Unknown flag in {-# OPTIONS_GHC #-} pragma: -fdefines-known-key-names
|
10 | {-# OPTIONS_GHC -fdefines-known-key-names #-}
| ^^^^^^^^^^^^^^^^^^^^^^^^^
I have no idea why this was fine until 10am this morning, and has suddenly
started happening now.
*How does GHC decide what runtime flags it allows? *
`-fdefines-known-key-names` is in GHC.Driver.Session.fFlagsDeps.
I'm boggled that it worked until 10am and then abruptly stopped.
Any advice?
Simon
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