Help! lin emacs fails

[Richard B. Pyne]

When trying to lin emacs I get:

gcc -c -D_BSD_SOURCE   -Demacs -DHAVE_CONFIG_H   -I. -
I/usr/src/emacs-21.3/src -D_BSD_SOURCE -O1 -mcpu=athlon-xp -
march=athlon-xp -funroll-loops -mmmx -msse -m3dnow -
mfpmath=sse,387 filelock.c
filelock.c: In function `get_boot_time':
filelock.c:184: error: `_PATH_WTMP' undeclared (first use in 
this function)
filelock.c:184: error: (Each undeclared identifier is reported 
only once
filelock.c:184: error: for each function it appears in.)
make[1]: *** [filelock.o] Error 1
make[1]: Leaving directory `/usr/src/emacs-21.3/src'
make: *** [src] Error 2
Creating /var/log/lunar/compile/emacs-21.3.bz2
! Problem detected during BUILD


Thanks

--Richard