GHCI and readline package

[Sigbjorn Finne]

The instructions below refer to a slightly older version of
mingw -- to have it work with the one that's bundled with
6.2.2, substitute "strcasecmp.o strncasecmp.o" for
"string_old.o".

--sigbjorn

----- Original Message ----- 
From: "Sigbjorn Finne" <sof at galois.com>
To: "Wassell, Mark P (GE Energy)" <mark.wassell at ps.ge.com>
Cc: <glasgow-haskell-users at haskell.org>
Sent: Monday, November 01, 2004 20:30
Subject: Re: GHCI and readline package


>
> 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/gcc-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)" <mark.wassell at ps.ge.com>
> To: <glasgow-haskell-users at haskell.org>
> Sent: Monday, November 01, 2004 19:34
> Subject: GHCI and readline package
>
>
>> 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
>
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