Linker error when building GHC HEAD on Mac OS

[David Kirkman]

It looks like you're running into the problem of apple's readline
not actually being readline at all (it's a link to some other library
that is almost, but not quite, readline).

See http://cvs.haskell.org/trac/ghc/wiki/Building/MacOSX
for instructions on how to install readline and how
to tell ghc where it is.

I've successfully built HEAD (Feb 25) on ppc OS 10.4.8, so
I know it will work.  But I also remember it took me a half
dozen tries to get it to build the first time (mostly related to
this readline business!)

-david k.


On 2/28/07, Stefan Holdermans <stefan at cs.uu.nl> wrote:
> I'm trying to build GHC HEAD on Mac OS 10.4.8 (PowerPC), but end up
> with a linker error:
>
>    ../compiler/stage1/ghc-inplace -o stage2/ghc-6.7.20070228 -H16m -O
> -package ghc -Istage2 -cpp -fglasgow-exts -fno-generics -Rghc-timing -
> I. -IcodeGen -InativeGen -Iparser -Rghc-timing  -DGHCI -DDEBUGGER -
> threaded -fforce-recomp        stage2/main/Main.o
>    /usr/bin/ld: warning multiple definitions of symbol _UP
>    /usr/lib/gcc/powerpc-apple-darwin8/4.0.1/../../../libreadline.dylib
> (terminal.so) definition of _UP
>    /usr/lib/gcc/powerpc-apple-darwin8/4.0.1/../../../libncurses.dylib
> (lib_termcap.o) definition of _UP
>    /usr/bin/ld: warning multiple definitions of symbol _BC
>    /usr/lib/gcc/powerpc-apple-darwin8/4.0.1/../../../libreadline.dylib
> (terminal.so) definition of _BC
>    /usr/lib/gcc/powerpc-apple-darwin8/4.0.1/../../../libncurses.dylib
> (lib_termcap.o) definition of _BC
>    /usr/bin/ld: warning multiple definitions of symbol _PC
>    /usr/lib/gcc/powerpc-apple-darwin8/4.0.1/../../../libreadline.dylib
> (terminal.so) definition of _PC
>    /usr/lib/gcc/powerpc-apple-darwin8/4.0.1/../../../libncurses.dylib
> (lib_tputs.o) definition of _PC
>    /usr/bin/ld: Undefined symbols:
>    _stg_interp_constr1_entry
>    _stg_interp_constr2_entry
>    _stg_interp_constr3_entry
>    _stg_interp_constr4_entry
>    _stg_interp_constr5_entry
>    _stg_interp_constr6_entry
>    _stg_interp_constr7_entry
>    _stg_interp_constr8_entry
>    collect2: ld returned 1 exit status
>    <<ghc: 19070104 bytes, 4 GCs, 120108/120108 avg/max bytes
> residency (1 samples), 16M in use, 0.01 INIT (0.00 elapsed), 0.10 MUT
> (4.20 elapsed), 0.05 GC (0.08 elapsed) :ghc>>
>    make[3]: *** [stage2/ghc-6.7.20070228] Error 1
>    make[2]: *** [stage2/ghc-6.7.20070228] Error 2
>    make[1]: *** [stage2] Error 2
>    make: *** [bootstrap2] Error 2
>
> Anyone any pointers?
>
> Cheers,
>
>    Stefan
>
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