Build Emacs CVS on FreeBSD -current?

[Kai Grossjohann <kai.grossjohann@gmx.net>]

After "make bootstrap", I get this:

    In file included from /usr/include/string.h:40,
                     from config.h:1000,
                     from bytecode.c:37:
    /usr/include/sys/cdefs.h:64:1: warning: "__P" redefined
    In file included from bytecode.c:37:
    config.h:991:1: warning: this is the location of the previous definition
    gcc -c -I/usr/X11R6/include -I/usr/local/include -L/usr/local/lib -Demacs -DHAVE_CONFIG_H -DUSE_LUCID  -I. -I/home/kai/work/gnu/emacs/src -I/usr/X11R6/include -I/usr/local/include -L/usr/local/lib -I/usr/X11R6/include -g -O2 process.c
    In file included from /usr/include/string.h:40,
                     from config.h:1000,
                     from process.c:23:
    /usr/include/sys/cdefs.h:64:1: warning: "__P" redefined
    In file included from process.c:23:
    config.h:991:1: warning: this is the location of the previous definition
    process.c: In function `Fnetwork_interface_info':
    process.c:3534: error: structure has no member named `ifr_netmask'
    process.c:3534: error: structure has no member named `ifr_netmask'

Is it just me being stupid?

FreeBSD slowfox.dyndns.org 5.1-CURRENT FreeBSD 5.1-CURRENT #0: Wed Sep 17 01:54:08 CEST 2003     root@slowfox.dyndns.org:/usr/obj/usr/src/sys/GENERIC  i386