STABLE-10 does not build

[Per olof Ljungmark]

Hi,

Hopefully someone is looking at this?

CC='cc ' mkdep -f .depend -a    -DHAVE_CONFIG_H
-I/usr/src/gnu/usr.bin/groff/src/devices/grotty/../../../../../../contrib/groff/src/include
-I/usr/src/gnu/usr.bin/groff/src/devices/grotty/../../../src/include

/usr/src/gnu/usr.bin/groff/src/devices/grotty/../../../../../../contrib/groff/src/devices/grotty/tty.cpp

--- sbin.depend__D ---
/usr/src/sbin/pfctl/pfctl_qstats.c:41:10: fatal error:
'net/altq/altq_fairq.h' file not found
#include <net/altq/altq_fairq.h>
         ^
1 error generated.