You can make 'readline' load with GHCi 6.2.2 with
just a little bit of effort -- try the following:
# any old temporary working directory will do
bash$ mkdir c:/tmp/hack
bash$ cd c:/tmp/hack
# assuming you've install 6.2.2 in c:/ghc/ghc-6.2.2
bash$ c:/ghc/ghc-6.2.2/bin/ar x \
c:/ghc/ghc-6.2.2/lib/libmoldname.a string_old.o
bash$ c:/ghc/ghc-6.2.2/gcc-lib/ld --whole-archive \
-r -x -o readline.o c:/ghc/ghc-6.2.2/gcc-lib/libreadline.a \
string_old.o
bash$ cp readline.o c:/ghc/ghc-6.2.2/
# you may now delete the temp dir.
Next, manually edit your c:/ghc/ghc-6.2.2/package.conf,
editing the "readline" package's extra_libraries field to:
extra_libraries = ["readline", "advapi32"],
Save the changes & you should be ready to go.
--sigbjorn
----- Original Message -----
From: "Wassell, Mark P (GE Energy)"
Hi,
I'm having a problem running ghci and loading the readline package on WindowsXP.
C:\Software\haskell\ghc622\bin>ghci -package readline ghci -package readline ___ ___ _ / _ \ /\ /\/ __(_) / /_\// /_/ / / | | GHC Interactive, version 6.2.2, for Haskell 98. / /_\\/ __ / /___| | http://www.haskell.org/ghc/ \____/\/ /_/\____/|_| Type :? for help.
Loading package base ... linking ... done. Loading package readline ... linking ... C:/Software/haskell/ghc622/HSreadline.o: unknown symbol `_rl_redisplay_function' ghc.exe: unable to load package `readline'
I have seen the follow in the user guide:
"For some reason, Mingw ships with the readline library, but not with the readline headers. As a result, GHC (like Hugs) does not use readline for interactive input on Windows. You can get a close simulation by using an emacs shell buffer!"
but I assume I need readline as util needs it and util is needed by data which is needed by wxcore.
Cheers
Mark