xref: /freebsd/sys/conf/kern.opts.mk (revision 5ae59dec60e3815b621ae87f74a377cf3449ca55)
1# $FreeBSD$
2
3# Options set in the build system that affect the kernel somehow.
4
5#
6# Define MK_* variables (which are either "yes" or "no") for users
7# to set via WITH_*/WITHOUT_* in /etc/src.conf and override in the
8# make(1) environment.
9# These should be tested with `== "no"' or `!= "no"' in makefiles.
10# The NO_* variables should only be set by makefiles for variables
11# that haven't been converted over.
12#
13
14# These options are used by the kernel build process (kern.mk and kmod.mk)
15# They have to be listed here so we can build modules outside of the
16# src tree.
17
18__DEFAULT_YES_OPTIONS = \
19    FORMAT_EXTENSIONS \
20    KERNEL_SYMBOLS
21
22__DEFAULT_NO_OPTIONS = \
23
24# Kludge to allow a less painful transition. If MAKESYSPATH isn't defined,
25# assume we have a standard FreeBSD src tree layout and reach over and grab
26# bsd.mkopt.mk from there. If it is defined, trust it to point someplace sane
27# and include bsd.mkopt.mk from there. We need the !defined case to keep ports
28# kernel modules working (though arguably they should define MAKESYSPATH). We
29# need the latter case to keep the Jenkins testing harness working where they
30# specifically use a non-standard layout, but do define MAKESYSPATH correctly.
31.if !defined(MAKESYSPATH)
32.include "../../share/mk/bsd.mkopt.mk"
33.else
34.include <bsd.mkopt.mk>
35.endif
36