Integrating editline with ghc
Manuel M T Chakravarty
chak at cse.unsw.edu.au
Sun Jan 27 21:23:31 EST 2008
> On Sun, Jan 27, 2008 at 04:41:37PM +1100, Manuel M T Chakravarty
>> My conclusion:
>> * The readline package stays as it is (stays GPL).
> I definitely agree with this.
>> * We add the new editline package (as a boot package) including
>> Editline.Readline as the compatibility layer (is BSD3).
> And this.
>> * GHC uses configure magic to pick editline when available and
>> readline otherwise.
> I think GHC should just always use editline. We already need to
> using an in-tree editline for Windows, so we can also use it on other
> platforms where editline isn't easily available or is too old. Also
> supporting readline just makes the build system more complicated for
> little extra benefit, and also means that there are more
> to bitrot.
Sure if you want to add another library into the tree that's an
option. However, I am not so sure whether it's going to be as easy as
with GMP. AFAIK libedit (which is the editline port used in Linux
distributions - <http://www.thrysoee.dk/editline/>) needs (n)curses.
Their web page says somebody managed to compile on cygwin, but there
is no mention of mingw. So, before committing to use editline/libedit
on all platforms, it might be useful to make sure editline compiles
More information about the Libraries