3 # Search for kernel source tree in standard places.
4 .for _dir in ${.CURDIR}/../.. ${.CURDIR}/../../.. ${.CURDIR}/../../../.. \
5 ${.CURDIR}/../../../../.. /sys /usr/src/sys
6 .if !defined(SYSDIR) && exists(${_dir}/kern/) && exists(${_dir}/conf/kmod.mk)
10 .if !defined(SYSDIR) || !exists(${SYSDIR}/kern/) || \
11 !exists(${SYSDIR}/conf/kmod.mk)
12 .error Unable to locate the kernel source tree. Set SYSDIR to override.
15 .include "${SYSDIR}/conf/dtb.mk"