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实现一个算法时出现了如下问题,



Files/CCS/ccsv5/tools/compiler/c6000_7.4.4/include" --define=c6748 --display_error_number --diag_warning=225 --diag_wrap=off --preproc_with_compile --preproc_dependency="main.pp"  "../main.cpp"
'Finished building: ../main.cpp'
' '
'Building target: EMD.out'
'Invoking: C6000 Linker'
"D:/Program Files/CCS/ccsv5/tools/compiler/c6000_7.4.4/bin/cl6x" -mv6740 --abi=coffabi -g --define=c6748 --display_error_number --diag_warning=225 --diag_wrap=off -z --stack_size=0x800 -m"EMD.map" --heap_size=0x800 -i"D:/Program Files/CCS/ccsv5/tools/compiler/c6000_7.4.4/lib" -i"D:/Program Files/CCS/ccsv5/tools/compiler/c6000_7.4.4/include" --reread_libs --warn_sections --display_error_number --diag_wrap=off --xml_link_info="EMD_linkInfo.xml" --rom_model -o "EMD.out"  "./main.obj" "../C6748.cmd" -l"libc.a"
<Linking>

 undefined first referenced
  symbol       in file     
 --------- ----------------
 _system   ./main.obj      

error #10234-D: unresolved symbols remain
error #10010: errors encountered during linking; "EMD.out" not built

>> Compilation failure
gmake: *** [EMD.out] Error 1
gmake: Target `all' not remade because of errors.

**** Build Finished ****