[pptp-server] compile error -- search archives - no luck

[kat]

Anyone seen this?  Kernel 2.2.18

ppp.c:100: warning: static declaration for `ppp_unregister_compressor' follows non-static
ppp.c:174: `PPP_VERSION' undeclared here (not in a function)
ppp.c: In function `ppp_tty_open':
ppp.c:418: `PPP_MAGIC' undeclared (first use in this function)
ppp.c:418: (Each undeclared identifier is reported only once
ppp.c:418: for each function it appears in.)
ppp.c: In function `ppp_tty_close':
ppp.c:463: `PPP_MAGIC' undeclared (first use in this function)
ppp.c: In function `ppp_tty_read':
ppp.c:511: `PPP_MAGIC' undeclared (first use in this function)
ppp.c: In function `ppp_tty_write':
ppp.c:600: `PPP_MAGIC' undeclared (first use in this function)
ppp.c: In function `ppp_tty_ioctl':
ppp.c:659: `PPP_MAGIC' undeclared (first use in this function)
ppp.c: In function `ppp_tty_poll':
ppp.c:817: `PPP_MAGIC' undeclared (first use in this function)
ppp.c: In function `ppp_tty_wakeup':
ppp.c:845: `PPP_MAGIC' undeclared (first use in this function)
ppp.c: In function `ppp_sync_send':
ppp.c:869: `PPP_MAGIC' undeclared (first use in this function)
ppp.c: In function `ppp_tty_sync_push':
ppp.c:922: `PPP_MAGIC' undeclared (first use in this function)
ppp.c: In function `ppp_async_send':
ppp.c:978: `PPP_MAGIC' undeclared (first use in this function)
ppp.c: In function `ppp_tty_push':
ppp.c:1004: `PPP_MAGIC' undeclared (first use in this function)
ppp.c: In function `ppp_async_encode':
ppp.c:1073: `PPP_MAGIC' undeclared (first use in this function)
ppp.c: In function `ppp_tty_receive':
ppp.c:1207: `PPP_MAGIC' undeclared (first use in this function)
ppp.c: In function `ppp_dev_close':
ppp.c:1560: `PPP_MAGIC' undeclared (first use in this function)
ppp.c: In function `ppp_dev_ioctl':
ppp.c:1594: `PPP_MAGIC' undeclared (first use in this function)
ppp.c: In function `ppp_ioctl':
ppp.c:1642: `PPP_MAGIC' undeclared (first use in this function)
ppp.c: In function `ppp_receive_error':
ppp.c:2235: `PPP_MAGIC' undeclared (first use in this function)
ppp.c: In function `rcv_proto_ip':
ppp.c:2266: `PPP_MAGIC' undeclared (first use in this function)
ppp.c: In function `rcv_proto_ipv6':
ppp.c:2279: `PPP_MAGIC' undeclared (first use in this function)
ppp.c: In function `rcv_proto_ipx':
ppp.c:2292: `PPP_MAGIC' undeclared (first use in this function)
ppp.c: In function `rcv_proto_at':
ppp.c:2305: `PPP_MAGIC' undeclared (first use in this function)
ppp.c: In function `rcv_proto_vjc_comp':
ppp.c:2320: `PPP_MAGIC' undeclared (first use in this function)
ppp.c: In function `rcv_proto_vjc_uncomp':
ppp.c:2345: `PPP_MAGIC' undeclared (first use in this function)
ppp.c: In function `rcv_proto_ccp':
ppp.c:2360: `PPP_MAGIC' undeclared (first use in this function)
ppp.c: In function `rcv_proto_unknown':
ppp.c:2371: `PPP_MAGIC' undeclared (first use in this function)
ppp.c: In function `ppp_send_frame':
ppp.c:2418: `PPP_MAGIC' undeclared (first use in this function)
ppp.c: In function `ppp_output_wakeup':
ppp.c:2592: `PPP_MAGIC' undeclared (first use in this function)
ppp.c: In function `ppp_send_ctrl':
ppp.c:2608: `PPP_MAGIC' undeclared (first use in this function)
{standard input}: Assembler messages:
{standard input}:9: Warning: Ignoring changed section attributes for .modinfo
ppp.c: In function `ppp_alloc':
ppp.c:2847: `PPP_MAGIC' undeclared (first use in this function)
ppp.c: In function `ppp_release':
ppp.c:2933: `PPP_MAGIC' undeclared (first use in this function)
ppp.c: In function `cleanup_module':
ppp.c:3140: `PPP_MAGIC' undeclared (first use in this function)
make[2]: *** [ppp.o] Error 1
make[2]: Leaving directory `/usr/src/linux/drivers/net'
make[1]: *** [_modsubdir_net] Error 2
make[1]: Leaving directory `/usr/src/linux/drivers'
make: *** [_mod_drivers] Error 2