请问用qvfb必须要编译内核生成streambuffer吗? [复制链接]

照http://doc.trolltech.com/4.1/emb-framebuffer-howto.html编译内核
make bzImage时总是出现
vgacon.c: In function `write_vga':
vgacon.c:156: warning: cast to pointer from integer of different size
vgacon.c:157: warning: cast to pointer from integer of different size
vgacon.c: In function `vgacon_startup':
vgacon.c:283: error: `PCIMEM_BASE' undeclared (first use in this function)
vgacon.c:283: error: (Each undeclared identifier is reported only once
vgacon.c:283: error: for each function it appears in.)
....
的错误...