Link Error on windows

[Ericson2314]

specific commit in question:  https://github.com/Ericson2314/Codec.Archive.CnCMix/commit/eb9c843e4d56068c670e3c33c5697243bee42349

When I try to compile my project I get these I get errors at link-time:

C:\Program Files\Haskell Platform\2012.4.0.0\lib\base-4.5.1.0/libHSbase-4.5.1.0.a(Data__683.o):fake:(.text+0x22): undefined reference to `base_DataziData_aonsConstr_closure'
C:\Program Files\Haskell Platform\2012.4.0.0\lib\base-4.5.1.0/libHSbase-4.5.1.0.a(Data__683.o):fake:(.data+0x4): undefined reference to `base_DataziData_aonsConstr_closure'
collect2: ld returned 1 exit status

I am not using any foreign functions, and unresolved symbol seems to be part of GHC so it looks like a bug to me.

[igloo]

Can you please tell me what commands I need to run to reproduce this problem?

[Ericson2314]

Probably just "ghc Main" and "ghc Main -o cncnix" from the directory with Main.hs. I am away from my computer so I cannot test this again at the moment.

[Ericson2314]

OK, confirmed compiling like that does fail. Interestingly I could use cabal to install cmdlib, the one dependancy of this project not in the haskell package, and I can interpret my code with either ghci and ":load Main", runhaskell, or runghc.

[igloo]

I can't reproduce this on Linux/amd64 with:

git clone https://github.com/Ericson2314/Codec.Archive.CnCMix.git
cd Codec.Archive.CnCMix
git reset --hard eb9c843e4d56068c670e3c33c5697243bee42349
cabal install cmdlib
ghc Main
ghc Main -o cncnix

I'll try on Windows.

[Ericson2314]

Yes, I can compile on Linux (x86-32). The problem only arises when I rebooted to windows (thus also x86-32) and tried to compile there. Also I was able to get somebody else to compile on Windows for me, so the issue clearly doesn't arise on all Windows machines. I could run their binary in my Windows, but I am not sure whether that means they were also running x86-32.

[igloo]

I can't reproduce it on Windows either, also using HP 2012.4.0.0. The symbol should be base_DataziData_consConstr_closure.

$ ar x "C:/Program Files (x86)/Haskell Platform/2012.4.0.0/lib/base-4.5.1.0/libHSbase-4.5.1.0.a"
$ nm Data__683.o 
00000000 b .bss
00000000 d .data
00000000 t .text
         U _base_DataziData_consConstr_closure
         U _base_DataziData_nilConstr_closure
00000008 D _base_DataziData_zdLr4lklvl89_closure
0000003c T _base_DataziData_zdLr4lklvl89_info
00000000 d _base_DataziData_zdLr4lklvl89_srt
0000000c t _s7nr_info

It looks like your GHC install has become corrupted somehow, perhaps due to dodgy hardware or badly behaved software.

[Ericson2314]

Weird, I hope my file system isn't corrupted or hard drive damaged. I'll re-install the platform and report back.

Thanks for your help, igloo.