xref: /freebsd/sys/conf/kern.opts.mk (revision a0e793cbf1951d07fc47a0d9ea389d7dacba5213)
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    ARM_EABI \
20    FORMAT_EXTENSIONS \
21    INET \
22    INET6 \
23    KERNEL_SYMBOLS
24
25# expanded inline from bsd.mkopt.mk:
26
27.for var in ${__DEFAULT_YES_OPTIONS}
28.if !defined(MK_${var})
29.if defined(WITHOUT_${var})			# WITHOUT always wins
30MK_${var}:=	no
31.else
32MK_${var}:=	yes
33.endif
34.endif
35.endfor
36.undef __DEFAULT_YES_OPTIONS
37
38#
39# MK_*_SUPPORT options which default to "yes" unless their corresponding
40# MK_* variable is set to "no".
41#
42.for var in \
43    INET \
44    INET6
45.if defined(WITHOUT_${var}_SUPPORT) || ${MK_${var}} == "no"
46MK_${var}_SUPPORT:= no
47.else
48MK_${var}_SUPPORT:= yes
49.endif
50.endfor
51