Dynamic libraries by default and GHC 7.8

[Christian Hoener zu Siederdissen]

Hi,

a bit late but here are my comments:

- my main (and in a way ``only'') concern is speed. At some point I'd
  like my programs to consistently beat the pants off C ...
  This won't happen soon, but when comparing to C it makes a difference
  being able to say Haskell is x1.3 slower or x1.4 slower.

- BUT performance is required only for the end product, where I would --
  in addition -- prefer statically built binaries. Getting other people
  to install GHC 7.6 (platform is not good enough!) and do the whole
  installation process won't work.

- development is done using cabal-dev, so I am compiling libraries 10-20
  times anyway. Once more for dynamic/statis wouldn't matter that much.



Gruss,
Christian

* Ian Lynagh <ian at well-typed.com> [27.11.2012 15:55]:
> 
> Hi all,
> 
> GHC HEAD now has support for using dynamic libraries by default (and in
> particular, using dynamic libraries and the system linker in GHCi) for a
> number of platforms.
> 
> This has some advantages and some disadvantages, so we need to make a
> decision about what we want to do in GHC 7.8. There are also some policy
> questions we need to answer about how Cabal will work with a GHC that
> uses dynamic libraries by default. We would like to make these as soon
> as possible, so that GHC 7.6.2 can ship with a Cabal that works
> correctly.
> 
> The various issues are described in a wiki page here:
>     http://hackage.haskell.org/trac/ghc/wiki/DynamicByDefault
> 
> If you have a few minutes to read it then we'd be glad to hear your
> feedback, to help us in making our decisions
> 
> 
> Thanks
> Ian
> -- 
> Ian Lynagh, Haskell Consultant
> Well-Typed LLP, http://www.well-typed.com/
> 
> 
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