make -C parport modules
make[2]: Entering directory `/usr/src/linux/drivers/parport'
gcc -D__KERNEL__ -I/usr/src/linux/include -Wall -Wstrict-prototypes -Wno-trigraphs -O2 -fomit-frame-pointer -fno-strict-aliasing -fno-common -pipe -mpreferred-stack-boundary=2 -march=i586 -DMODULE -c -o ieee1284_ops.o ieee1284_ops.c
ieee1284_ops.c: In function `ecp_forward_to_reverse':
ieee1284_ops.c:365: `IEEE1284_PH_DIR_UNKNOWN' undeclared (first use in this function)
ieee1284_ops.c:365: (Each undeclared identifier is reported only once
ieee1284_ops.c:365: for each function it appears in.)
ieee1284_ops.c: In function `ecp_reverse_to_forward':
ieee1284_ops.c:397: `IEEE1284_PH_DIR_UNKNOWN' undeclared (first use in this function)
make[2]: *** [ieee1284_ops.o] Error 1