Checking if your kit is complete... Looks good Writing Makefile for Apache::Mmap Microsoft (R) Program Maintenance Utility Version 6.00.8168.0 Copyright (C) Microsoft Corp 1988-1998. All rights reserved. cp Mmap.pm blib\lib\Apache/Mmap.pm AutoSplitting blib\lib\Apache/Mmap.pm (blib\lib\auto\Apache\Mmap) cp Handle.pm blib\lib\Apache/Mmap/Handle.pm AutoSplitting blib\lib\Apache/Mmap/Handle.pm (blib\lib\auto\Apache\Mmap\Handle) C:\cpanrun\build\5-10-0\bin\perl.exe C:\cpanrun\build\5-10-0\lib\ExtUtils\xsubpp -typemap C:\cpanrun\build\5-10-0\lib\ExtUtils\typemap -typemap typemap Mmap.xs > Mmap.xsc && C:\cpanrun\build\5-10-0\bin\perl.exe -MExtUtils::Command -e mv Mmap.xsc Mmap.c cl -c -nologo -GF -W3 -MD -Zi -DNDEBUG -O1 -DWIN32 -D_CONSOLE -DNO_STRICT -DHAVE_DES_FCRYPT -DUSE_SITECUSTOMIZE -DPRIVLIB_LAST_IN_INC -DPERL_IMPLICIT_CONTEXT -DPERL_IMPLICIT_SYS -DUSE_PERLIO -DPERL_MSVCRT_READFIX -MD -Zi -DNDEBUG -O1 -DVERSION=\"0.05\" -DXS_VERSION=\"0.05\" "-IC:\cpanrun\build\5-10-0\lib\CORE" Mmap.c Mmap.c Mmap.xs(31) : fatal error C1083: Cannot open include file: 'sys/mman.h': No such file or directory NMAKE : fatal error U1077: 'cl' : return code '0x2' Stop.