160963Speter# $FreeBSD$
260963Speter
360963Speter# Search for kernel source tree in standard places.
4130835Spjd.for _dir in ${.CURDIR}/../.. ${.CURDIR}/../../.. ${.CURDIR}/../../../.. \
5183736Simp    ${.CURDIR}/../../../../.. /sys /usr/src/sys
6130835Spjd.if !defined(SYSDIR) && exists(${_dir}/kern/) && exists(${_dir}/conf/kmod.mk)
760963SpeterSYSDIR=	${_dir}
860963Speter.endif
960963Speter.endfor
10130835Spjd.if !defined(SYSDIR) || !exists(${SYSDIR}/kern/) || \
11130835Spjd    !exists(${SYSDIR}/conf/kmod.mk)
12231834Simp.error Unable to locate the kernel source tree. Set SYSDIR to override.
1360963Speter.endif
1460963Speter
1560965Speter.include "${SYSDIR}/conf/kmod.mk"
1676861Skris
1776861Skris.include <bsd.sys.mk>
18