Note (probably harmless): No library found for '-Writing Makefile for Device::MX240
library found for '-lusb'
cp MX240.pm blib\lib\Device\MX240.pm
AutoSplitting blib\lib\Device\MX240.pm (blib\lib\auto\Device\MX240)
	D:\cpanrun\build\5-6-1\Please specify prototyping behavior for MX240.xs (see perlxs manual)
NMAKE : fatal error U1077: 'cl' : return code '0x2'
Stop.
nrun\build\5-6-1\lib\ExtUtils\typemap MX240.xs > MX240.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 MX240.xsc MX240.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=\"0.04\"  -DXS_VERSION=\"0.04\"  -ID:\cpanrun\build\5-6-1\lib\CORE  MX240.c
MX240.c
MX240.xs(7) : fatal error C1083: Cannot open include file: 'unistd.h': No such file or directory