Checking if your kit is complete... Looks good Writing Makefile for Term::Size::Perl Microsoft (R) Program Maintenance Utility Version 7.10.3077 Copyright (C) Microsoft Corporation. All rights reserved. C:\cpanrun\build\5-10-0\bin\perl.exe inc/Probe.pm inc/Probe.pm: writing C probe... ok inc/Probe.pm: compiling C probe... Generating script '.\probe.ccs' cl -nologo -c @".\probe.ccs" -Fo"probe.obj" "probe.c" probe.c probe.c(17) : fatal error C1083: Cannot open include file: 'sys/ioctl.h': No such file or directory NO NMAKE : fatal error U1077: 'C:\cpanrun\build\5-10-0\bin\perl.exe' : return code '0x1' Stop.