Here are my errors:
C:\devkitadv\test>c++ -Ic:\devkitadv\arm-agb-elf\include\gp32 gpmain.cpp
In file included from /cygdrive/c/devkitadv/arm-agb-elf/include/time.h:32,
from /cygdrive/c/devkitadv/arm-agb-elf/include/sys/reent.h:14,
from /cygdrive/c/devkitadv/arm-agb-elf/include/stdlib.h:24,
from gpmain.cpp:5:
/cygdrive/c/devkitadv/include/g++-v3/sys/types.h:23:2: #error ERROR: Only Mac or
Win32 targets supported!
In file included from /cygdrive/c/devkitadv/arm-agb-elf/include/sys/reent.h:14,
from /cygdrive/c/devkitadv/arm-agb-elf/include/stdlib.h:24,
from gpmain.cpp:5:
/cygdrive/c/devkitadv/arm-agb-elf/include/time.h:47: parse error before `)'
token