E:\temp\pre\Crypt-DES-2.05>perl Makefile.pl
Writing Makefile for Crypt::DES

E:\temp\pre\Crypt-DES-2.05>nmake

Microsoft (R) Program Maintenance Utility   Version 6.00.8168.0
Copyright (C) Microsoft Corp 1988-1998. All rights reserved.

        cl -c    -nologo -GF -W3 -MD -Zi -DNDEBUG -O1 -DWIN32 -D_CONSOLE -DNO_ST
RICT -DHAVE_DES_FCRYPT -DNO_HASH_SEED -DUSE_SITECUSTOMIZE -DPERL_IMPLICIT_CONTEX
T -DPERL_IMPLICIT_SYS -DUSE_PERLIO -DPERL_MSVCRT_READFIX -MD -Zi -DNDEBUG -O1
 -DVERSION=\"2.05\"  -DXS_VERSION=\"2.05\"  "-ID:\apps\lib\CORE"   DES.c
DES.c
D:\apps\lib\CORE\perl.h(420) : fatal error C1083: Cannot open include file: 'sys
/types.h': No such file or directory
NMAKE : fatal error U1077: 'cl' : return code '0x2'
Stop.