In the likely event, that you are not using Watcom C/C++, 
then you need to create your own project or makefiles.

These should include

        ..\atr.c
        ..\atapi.c
        ..\ctbcs.c
        ..\ecot0.c
        ..\ecot1.c
        ..\ecotools.c
        ..\mc_2wbp.c
        ..\mc_3wbp.c
        ..\mc_sdap.c
        ..\memorycards.c
        dllproxy.c
        sercom.c

You need to direct your linker to export the symbols

        CT_init         (_CT_init@8)
        CT_close        (_CT_close@4)
        CT_data         (_CT_data@28)



