On Dec 21, 2007, at 3:40 PM, Thorkil Naur wrote:
1. Which readline do we use? GNU readline, of course. As opposed to
the
readline installed as /usr/include/readline/*.h
and /usr/lib/libreadline.dylib on our PPC Mac OS X machines which
are said to
be (and can even be observed to be) symbolic links to something called
libedit and which, to me, never has managed to provide something
suitable for
use by GHC. But what is GNU readline, then? I don't exactly know,
but my best
guess is something like ftp://ftp.cwru.edu/pub/bash/readline-5.2.tar.gz
. I
never tried to install GNU readline directly from this file. On some
occasions, I have installed readline from mac ports. Although I am
fairly
confident that what was installed was some version of the GNU
readline, I am
not sure. On other occasions, I have installed GNU readline from
various
sources related to GHC, some times known to me, at other times not.
I should point out that other components on Mac OS X successfully use
libedit for readline functionality.
While I agree fully with the desire to have full readline
functionality in libedit, would it make sense for GHC to offer an
option to use Mac OS X's native "readline", with concomitant loss of
functionality? Some users might prefer giving up some function in
return for one less thing to be installed external to GHC. I probably
would.
Just a thought...
Deborah
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