Duncan Coutts wrote:
In practise, since ghc uses MonoPatBinds by default it'd mean that
people who want to get back to H98 would need to use:
ghc-options: -XNoMonoPatBinds
Because the extensions field is additive, not subtractive. Using the
name MonoPatBinds allows other compilers to implement it without it
having to be the default.
hmm, that's annoying. Is it feasible for the extensions field to allow
both addition and subtraction that override compiler defaults? (How
does it work in LANGUAGE pragmas -- would NoMonoPatBinds still work in
one of them?)
-Isaac
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