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Do not check for existence of ${_dir}/kern/ , because for modules that set

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.PATH to ${.CURDIR}/[...]/kern , the "exists" expression will fail for the
form exists(${.CURDIR}/[...]/kern/).  This appears to be happening because
make is searching for the argument to "exists" by using .PATH rather than a
relative search, because .PATH and the argument match at the beginning.
Additionally, make appears to consider a path that starts with ${.CURDIR}
as relative, even though it expands to an absolute path.

The reason that most people aren't seeing this problem is that the absolute
paths of /usr/src/sys and /sys are also searched, so as long as the kernel
source can be found in at least one of those places, no problems surface.
This problem was inadvertently introduced on 1 December 2000, with the
addition of the sysvipc modules.
This commit is contained in:
Jason Evans 2000-12-08 20:36:32 +00:00
parent 959b7375ed
commit aabafca098
2 changed files with 3 additions and 3 deletions
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4
share/mk/bsd.kmod.mk
View file

@ -2,11 +2,11 @@
# Search for kernel source tree in standard places.
.for _dir in ${.CURDIR}/../.. ${.CURDIR}/../../.. ${.CURDIR}/../../../.. /sys /usr/src/sys
.if !defined(SYSDIR) && exists(${_dir}/kern/) && exists(${_dir}/conf/)
.if !defined(SYSDIR) && exists(${_dir}/conf/kmod.mk)
SYSDIR= ${_dir}
.endif
.endfor
.if !defined(SYSDIR) || !exists(${SYSDIR}/kern/) || !exists(${SYSDIR}/conf/)
.if !defined(SYSDIR) || !exists(${SYSDIR}/kern) || !exists(${SYSDIR}/conf/)
.error "can't find kernel source tree"
.endif

2
sys/conf/kmod.mk
View file

@ -166,7 +166,7 @@ beforedepend ${OBJS}: ${_ILINKS}
SYSDIR= ${_dir}
.endif
.endfor
.if !defined(SYSDIR) || !exists(${SYSDIR}/kern/)
.if !defined(SYSDIR) || !exists(${SYSDIR}/kern)
.error "can't find kernel source tree"
.endif