Checking for libk5crypto...no. I'll use libcrypto instead. Checking if your kit is complete... Looks good Writing Makefile for Authen::Krb5 cp Krb5.pm blib\lib\Authen\Krb5.pm AutoSplitting blib\lib\Authen\Krb5.pm (blib\lib\auto\Authen\Krb5) D:\cpanrun\build\5-6-1\bin\perl.exe -Id:\cpanrun\build\5-6-1\lib -Id:\cpanrun\build\5-6-1\lib D:\cpanrun\build\5-6-1\lib\ExtUtils/xsubpp -typemap D:\cpanrun\build\5-6-1\lib\ExtUtils\typemap -typemap typemap Krb5.xs > Krb5.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 Krb5.xsc Krb5.c cl -c -I/usr/local/krb5/include -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=\"1.4\" -DXS_VERSION=\"1.4\" -ID:\cpanrun\build\5-6-1\lib\CORE Krb5.c Krb5.c Krb5.xs(7) : fatal error C1083: Cannot open include file: 'krb5.h': No such file or directory