C:\Perl\.cpanplus\5.8.3\build\Games-Irrlicht-0.04>nmake

Microsoft (R) Program Maintenance Utility   Version 6.00.9782.0
Copyright (C) Microsoft Corp 1988-1998. All rights reserved.

        cl -c    -nologo -Gf -W3 -MD -Zi -DNDEBUG -O1 -DWIN32 -D_CONSOLE -DNO_STRICT -DHAVE_DES_FCRYPT -DNO_HASH_SEED -DPE
RL_IMPLICIT_CONTEXT -DPERL_IMPLICIT_SYS -DUSE_PERLIO -DPERL_MSVCRT_READFIX -O2    -DVERSION=\"0.04\"  -DXS_VERSION=\"0.04\
"  "-IC:\Perl\lib\CORE"  -GX -TP Irrlicht.c
Command line warning D4025 : overriding '/O1' with '/O2'
Irrlicht.c
Irrlicht.xs(69) : error C2555: 'MyEventReceiver::OnEvent' : overriding virtual function differs from 'irr::IEventReceiver:
:OnEvent' only by return type or calling convention
        C:\dev\irrlicht-0.6\include\IEventReceiver.h(168) : see declaration of 'IEventReceiver'
Irrlicht.xs(84) : error C2259: 'MyEventReceiver' : cannot instantiate abstract class due to following members:
        Irrlicht.xs(66) : see declaration of 'MyEventReceiver'
Irrlicht.xs(84) : warning C4259: 'bool __thiscall irr::IEventReceiver::OnEvent(struct irr::SEvent)' : pure virtual functio
n was not defined
        C:\dev\irrlicht-0.6\include\IEventReceiver.h(172) : see declaration of 'OnEvent'
Irrlicht.xs(84) : error C2259: 'MyEventReceiver' : cannot instantiate abstract class due to following members:
        Irrlicht.xs(66) : see declaration of 'MyEventReceiver'
Irrlicht.xs(84) : warning C4259: 'bool __thiscall irr::IEventReceiver::OnEvent(struct irr::SEvent)' : pure virtual functio
n was not defined
        C:\dev\irrlicht-0.6\include\IEventReceiver.h(172) : see declaration of 'OnEvent'
Irrlicht.xs(102) : warning C4800: 'unsigned int' : forcing value to bool 'true' or 'false' (performance warning)
Irrlicht.xs(395) : warning C4800: 'int' : forcing value to bool 'true' or 'false' (performance warning)
NMAKE : fatal error U1077: 'cl' : return code '0x2'
Stop.