> ??
> I do not understand. I meant -O only for ghc --make -O
> (has -O sense in other situation?)
Yes, I was talking about in interactive mode. It works fine with
--make.
> to compile _once_ the whole application library.
> .o, .hi files are prepared once
> (Why are you saying `to wait that long' ?).
> Then, thousands of times ghci is run that uses the ready library
> optimized code and loads smaller examples to interptret.
> (I never tried -O to compile for ghci because so far we are
> considering the bugs made by ghci using the code produced with
> -Onot).
> Typical example: the product of concrete matrices matrMul M N
> is called for several M, N - in interpreted mode.
> But matrMul refers to the application library code compiled (once)
> with -O.
> Is this possible?
> Please, document these questions in the manual.
-O is disabled in interactive mode. This is documented in the manual in
the GHCi section.
Cheers,
Simon
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