Magnus Therning wrote:
Wolfgang Jeltsch wrote:
Am Freitag, 26. September 2008 09:24 schrieb Magnus Therning:
Recently I received an email with a question regarding the licensing
of a module I've written and uploaded to Hackage. I released it under
LGPL. The sender wondered if I would consider re-licensing the code
under BSD (or something similar) that would remove the need for users
to provide linkable object files so that users can re-link programs
against newer/modified versions of my library.
Since GHC does cross-package inlining, code of your library is directly
included (not just linked) into code that uses the library. So I think that
every code that uses your library will have to be released und the GPL or
LGPL which is a very bad situation.
People, don’t release Haskell libraries under the LGPL!
That would be serious indeed, but before changing my ways I'd need more
information to back up your statement. Could someone confirm that code
from one installed module can be inlined into another?
When optimisation is turned on, you have virtually no control over how
much code GHC will copy from one module to another, which is why several
people (me included) have expressed concerns about the use of an
unmodified LGPL with Haskell code in the past. I believe at one stage
we even asked for clarification from the FSF, but I don't recall getting
an answer.
Cheers,
Simon
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