Conrad Meyer wrote: > On Wednesday 25 February 2009 07:47:16 am Wolfgang Jeltsch wrote: >> Am Mittwoch, 25. Februar 2009 14:33 schrieb Duncan Coutts: >>> Note that some people will tell you that by a strict interpretation of >>> the LGPL that statically linked Haskell libs under that license are a >>> pain in the backside. When we decided on that license for gtk2hs that >>> was not our intention. In other words nobody is going to sue you if you >>> statically link gtk2hs libs. Of course if you need a cast iron legal >>> guarantee then that's not good enough and you'd have to ship .a and .o >>> files to let users relink if they wanted to. >> I’m not sure whether this would be enough. .a and .o files are not >> compatible among GHC versions, as far as I know. Relinking against newer >> Gtk2Hs versions might not work. And a program using Gtk2Hs contains code >> from the .hi files of Gtk2Hs through inlining. So it’s not pure linking. >> However, the LGPL only allows linking, as far as I understand. >> >> I want to repeat what I’ve said earlier on this list: For Haskell, there is >> no real difference between LGPL and GPL, as far as I understand it. If you >> don’t want to force the users of your library to use an open source license >> for their work then use BSD3 or a similar license for your library. >> >> Best wishes, >> Wolfgang > > > Alternatively Haskell could add shared library support, like every other > language.
As has already been discussed on this list, shared library support to obtain substitutability of libraries is problematic in a language like Haskell too, at least AFAIU. Just consider cross .o inlining... (Using shared libraries in order to decrease system-wide memory footprint of Haskell binaries is however a bit easier.) /M -- Magnus Therning (OpenPGP: 0xAB4DFBA4) magnus＠therning．org Jabber: magnus＠therning．org http://therning.org/magnus identi.ca|twitter: magthe Haskell is an even 'redder' pill than Lisp or Scheme. -- PaulPotts
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