3 # Search for kernel source tree in standard places.
5 .for _dir in ${SRCTOP:D${SRCTOP}/sys} \
6 ${.CURDIR}/../.. ${.CURDIR}/../../.. ${.CURDIR}/../../../.. \
7 ${.CURDIR}/../../../../.. /sys /usr/src/sys
8 .if !defined(SYSDIR) && exists(${_dir}/kern/) && exists(${_dir}/conf/kmod.mk)
13 .if !defined(SYSDIR) || !exists(${SYSDIR}/kern/) || \
14 !exists(${SYSDIR}/conf/kmod.mk)
15 .error Unable to locate the kernel source tree. Set SYSDIR to override.