[Haskell-beginners] Strange error during compilation/linking

[Erik Quaeghebeur]

Hi,


I get the following error while compiling (I guess it's actually the 
linking step):

$ghc -o cmimc cmimc.hs
cmimc.o: In function `rP1_info':
(.text+0x32a): undefined reference to
`containerszm0zi2zi0zi1_DataziMap_zdf2_closure'
cmimc.o: In function `rP3_info':
(.text+0x396): undefined reference to
`containerszm0zi2zi0zi1_DataziMap_zdf2_closure'
cmimc.o: In function `rPh_info':
(.text+0x666): undefined reference to
`containerszm0zi2zi0zi1_DataziMap_fromList_closure'
cmimc.o: In function `rPj_info':
(.text+0x6ca): undefined reference to
`containerszm0zi2zi0zi1_DataziMap_fromList_closure'
cmimc.o: In function `sR5_info':
(.text+0x1225): undefined reference to
`__stginit_containerszm0zi2zi0zi1_DataziMap_'
cmimc.o: In function `rP1_srt':
(.data+0x90): undefined reference to
`containerszm0zi2zi0zi1_DataziMap_zdf2_closure'
cmimc.o: In function `rP3_srt':
(.data+0xac): undefined reference to
`containerszm0zi2zi0zi1_DataziMap_zdf2_closure'
cmimc.o: In function `rPh_srt':
(.data+0x15c): undefined reference to
`containerszm0zi2zi0zi1_DataziMap_fromList_closure'
cmimc.o: In function `rPj_srt':
(.data+0x174): undefined reference to
`containerszm0zi2zi0zi1_DataziMap_fromList_closure'
collect2: ld returned 1 exit status

However, running the program with ghci:
$ghci cmimc.hs
Prelude Main> :set args "testinput.txt"
Prelude Main> :trace main

gives the correct output...

Where might there be a problem? In my installation (Kubuntu i386,
ghc6.10.4-1ubunbtu2) perhaps?

Please tell me if/which additional info I need to provide.


TIA,

Erik