[LinuxPPS] compile fail with latest git pull

[gnu not unix]

Hi Folks--I just did a git pull of linuxpps and it failed compile:

  CC [M]  drivers/char/mwave/mwavedd.o
In file included from include/linux/serial_8250.h:14,
                 from drivers/char/mwave/mwavedd.c:60:
include/linux/serial_core.h: In function 'uart_handle_dcd_change':
include/linux/serial_core.h:476: error: 
		'UART_MSR_DCD' undeclared (first use in this function)

(...)

Something is messed up in serial_core.h? I just used my old .config
for the kernel build.

../Steven