g++ -c -nologo -Gf -W3 -MD -Zi -DNDEBUG -O1 -DWIN32 -D_CONSOLE -DNO_STRICT -DHAVE_DES_FCRYPT -DNO_HASH_SEED -DPERL_IMPLICIT_CONTEXT -DPERL_IMPLICIT_SYS -DUSE_PERLIO -DPERL_MSVCRT_READFIX -O2 -DVERSION=\"0.04\" -DXS_VERSION=\"0.04\" "-IC:\Perl\lib\CORE" Irrlicht.c g++: unrecognized option `-nologo' g++: unrecognized option `-Gf' g++: unrecognized option `-Zi' cc1plus.exe: unrecognized option `-W3' NMAKE : fatal error U1077: 'C:\WINDOWS\system32\cmd.exe' : return code '0x1' Stop.