[nistur@Phoenix GP2XFramework]$ make
/opt/open2x/gcc-4.1.1-glibc-2.3.6/bin/arm-open2x-linux-g++ main.cpp pad.cpp sprite.cpp -o main.gpe -static -I/opt/open2x/gcc-4.1.1-glibc-2.3.6/include/SDL -L/opt/open2x/gcc-4.1.1-glibc-2.3.6/lib -lSDL -lm -lg -lpthread
/tmp/cc11a7Wy.o: In function `GP2XSpriteT::GP2XSpriteT(int, int, unsigned char, unsigned char, unsigned char, char*)':
sprite.cpp:(.text+0xbe4): undefined reference to `vtable for GP2XSpriteT'
/tmp/cc11a7Wy.o: In function `GP2XSpriteT::GP2XSpriteT(int, int, unsigned char, unsigned char, unsigned char, char*)':
sprite.cpp:(.text+0xc8c): undefined reference to `vtable for GP2XSpriteT'
/tmp/cc11a7Wy.o: In function `GP2XSpriteT::GP2XSpriteT(int, int, char*)':
sprite.cpp:(.text+0xd04): undefined reference to `vtable for GP2XSpriteT'
/tmp/cc11a7Wy.o: In function `GP2XSpriteT::GP2XSpriteT(int, int, char*)':
sprite.cpp:(.text+0xd7c): undefined reference to `vtable for GP2XSpriteT'
/tmp/cc11a7Wy.o: In function `GP2XSpriteT::GP2XSpriteT(unsigned char, unsigned char, unsigned char, char*)':
sprite.cpp:(.text+0xe14): undefined reference to `vtable for GP2XSpriteT'
/tmp/cc11a7Wy.o:sprite.cpp:(.text+0xeac): more undefined references to `vtable for GP2XSpriteT' follow
collect2: ld returned 1 exit status
make: *** [all] Error 1
[nistur@Phoenix GP2XFramework]$