Checking if your kit is complete... Looks good Writing Makefile for Linux::Inotify2 cp Inotify2.pm blib\lib\Linux\Inotify2.pm D:\cpanrun\build\5-6-1\bin\perl.exe -Id:\cpanrun\build\5-6-1\lib -Id:\cpanrun\build\5-6NMAKE : fatal error U1077: 'cl' : return code '0x2' Stop. D:\cpanrun\build\5-6-1\lib\ExtUtils\typemap Inotify2.xs > Inotify2.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 Inotify2.xsc Inotify2.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=\"1.1\" -DXS_VERSION=\"1.1\" -ID:\cpanrun\build\5-6-1\lib\CORE Inotify2.c Inotify2.c Inotify2.xs(7) : fatal error C1083: Cannot open include file: 'unistd.h': No such file or directory