7.8.1, template haskell, and dynamic libraries

Carter Schonwald carter.schonwald at gmail.com
Wed Feb 19 03:44:43 UTC 2014

hey Albert, could you open a ticket on ghc Trac about the QuasiQuot thing?

On Tue, Feb 18, 2014 at 9:48 PM, Albert Y. C. Lai <trebla at vex.net> wrote:

> The new dynamism is pretty nice! I even used GHC 7.6.3 to build
> cabal-install 1.18, then played with PATH so that when I said "cabal
> install mtl" it saw GHC 7.8. It correctly added -dynamic-too and built both
> *.a and *.so in one go. This is very user-friendly.
> Still, I observed a few oddities.
> 1. Referring to the user guide section 2.3 "loading compiled code", it is
> now insufficient to "ghc -c D.hs". It has to be "ghc -c -dynamic D.hs".
> Perhaps more importantly, "ghc -c -dynamic-too D.hs" is also insufficient.
> Apparently, while TemplateHaskell considers both *.hi and *.dyn_hi, :load
> considers *.hi only.
> 2. My experiment began with just QuasiQuote. QuasiQuote needs as much
> dynamism as TemplateHaskell. Yet, QuasiQuote does not trigger a nice
> implicit -dynamic-too, unlike TemplateHaskell.
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