Checking if your kit is complete... Looks good Writing Makefile for BTRIEVE::Native cp Native.pm blib\lib\BTRIEVE\Native.pm D:\cpanrun\build\5-6-1\bin\perl.exe -Id:\cpanrun\build\5-6-1\lib -Id:\cpanrun\build\5-6-1\lib D:\cpanrun\build\5-6-1\lib\ExtUtils/xsubpp -typemap D:\cpanrun\build\5-6-1\lib\ExtUtils\typemap Native.xs > Native.xsc && D:\cpanrun\build\5-6-1\bin\perl.exe -Id:\cpanrun\build\5-6-1\lib -Id:\cpanrun\build\5-6-1\lib -MExtUtils::Command -e mv Native.xsc Native.c cl -c -nologo -O1 -MD -Zi -DNDEBUG -DWIN32 -D_CONSOLE -DNO_STRICT -DHAVE_DES_FCRYPT -DPERL_IMPLICIT_CONTEXT -DPERL_IMPLICIT_SYS -DPERL_MSVCRT_READFIX -O1 -MD -Zi -DNDEBUG -DVERSION=\"0.03\" -DXS_VERSION=\"0.03\" -ID:\cpanrun\build\5-6-1\lib\CORE Native.c Native.c Native.xs(32) : warning C4761: integral size mismatch in argument; conversion supplied "Running Mkbootstrap for BTRIEVE::Native ()" D:\cpanrun\build\5-6-1\bin\perl.exe -Id:\cpanrun\build\5-6-1\lib -Id:\cpanrun\build\5-6-1\lib -MExtUtils::Command -e chmod 644 Native.bs D:\cpanrun\build\5-6-1\bin\perl.exe "-Id:\cpanrun\build\5-6-1\lib" "-Id:\cpanrun\build\5-6-1\lib" -MExtUtils::Mksymlists -e "Mksymlists('NAME' => 'BTRIEVE::Native', 'DLBASE' => 'Native', 'DL_FUNCS' => { }, 'FUNCLIST' => [], 'IMPORTS' => { BTRCALL=>q[wbtrv32.BTRCALL] }, 'DL_VARS' => []);" link -out:blib\arch\auto\BTRIEVE\Native\Native.dll -dll -nologo -nodefaultlib -debug -opt:ref,icf -libpath:"d:\cpanrun\build\5-6-1\lib\CORE" -machine:x86 Native.obj D:\cpanrun\build\5-6-1\lib\CORE\perl56.lib oldnames.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib netapi32.lib uuid.lib wsock32.lib mpr.lib winmm.lib version.lib odbc32.lib odbccp32.lib msvcrt.lib -def:Native.def Native.def : warning LNK4017: IMPORTS statement not supported for the target platform; ignored Native.def : warning LNK4017: BTRCALL=wbtrv32.BTRCALL statement not supported for the target platform; ignored Creating library blib\arch\auto\BTRIEVE\Native\Native.lib and object blib\arch\auto\BTRIEVE\Native\Native.exp Native.obj : error LNK2001: unresolved external symbol _BTRCALL@28 blib\arch\auto\BTRIEVE\Native\Native.dll : fatal error LNK1120: 1 unresolved externals