freebsd-dev/share/mk/bsd.dtb.mk
Bryan Drewery 7d9f50a4ba Avoid looping if SYSDIR already known.
Sponsored by:	Dell EMC
2018-03-28 16:28:24 +00:00

22 lines
562 B
Makefile

# $FreeBSD$
# Search for kernel source tree in standard places.
.if empty(KERNBUILDDIR)
.if !defined(SYSDIR)
.for _dir in ${.CURDIR}/../.. ${.CURDIR}/../../.. ${.CURDIR}/../../../.. \
${.CURDIR}/../../../../.. /sys /usr/src/sys
.if exists(${_dir}/kern/) && exists(${_dir}/conf/kmod.mk)
SYSDIR= ${_dir}
.endif
.endfor
.endif
.if !defined(SYSDIR) || !exists(${SYSDIR}/kern/) || \
!exists(${SYSDIR}/conf/kmod.mk)
.error Unable to locate the kernel source tree. Set SYSDIR to override.
.endif
.endif
.include "${SYSDIR}/conf/dtb.mk"
.include <bsd.sys.mk>