Checking if your kit is complete... Looks good Writing Makefile for Cache::FastMmap::CImpl Writing Makefile for Cache::FastMmap Microsoft (R) Program Maintenance Utility Version 6.00.8168.0 Copyright (C) Microsoft Corp 1988-1998. All rights reserved. cp FastMmap.pm blib\lib\Cache\FastMmap.pm nmake -f Makefile all -nologo cp CImpl.pm ..\blib\lib\Cache\FastMmap\CImpl.pm 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 CImpl.xs > CImpl.xsc && C:\cpanrun\build\5-10-0\bin\perl.exe -MExtUtils::Command -e mv CImpl.xsc CImpl.c cl -c -I. -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=\"1.25\" -DXS_VERSION=\"1.25\" "-IC:\cpanrun\build\5-10-0\lib\CORE" CImpl.c CImpl.c CImpl.c(528) : warning C4101: 'RETVAL' : unreferenced local variable CImpl.xs(621) : warning C4101: 'found' : unreferenced local variable cl -c -I. -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=\"1.25\" -DXS_VERSION=\"1.25\" "-IC:\cpanrun\build\5-10-0\lib\CORE" mmap_cache.c mmap_cache.c mmap_cache.c(19) : fatal error C1083: Cannot open include file: 'unistd.h': No such file or directory NMAKE : fatal error U1077: 'cl' : return code '0x2' Stop. NMAKE : fatal error U1077: 'C:\PROGRA~1\MICROS~3\VC98\BIN\nmake.exe' : return code '0x2' Stop.