xref: /freebsd/sys/conf/kern.opts.mk (revision 4ce386ff25d77954b8cfa11534f632172e848244)
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# Note: bsd.own.mk must be included before the rest of kern.opts.mk to make
15# building on 10.x and earlier work. This should be removed when that's no
16# longer supported since it confounds the defaults (since it uses the host's
17# notion of defaults rather than what's default in current when building
18# within sys/modules).
19.include <bsd.own.mk>
20
21# These options are used by the kernel build process (kern.mk and kmod.mk)
22# They have to be listed here so we can build modules outside of the
23# src tree.
24
25__DEFAULT_YES_OPTIONS = \
26    AUTOFS \
27    BHYVE \
28    BLUETOOTH \
29    CCD \
30    CDDL \
31    CRYPT \
32    CUSE \
33    FORMAT_EXTENSIONS \
34    INET \
35    INET6 \
36    IPFILTER \
37    ISCSI \
38    KERNEL_SYMBOLS \
39    NETGRAPH \
40    PF \
41    SOURCELESS_HOST \
42    SOURCELESS_UCODE \
43    USB_GADGET_EXAMPLES \
44    ZFS
45
46__DEFAULT_NO_OPTIONS = \
47    EISA \
48    NAND \
49    OFED
50
51# expanded inline from bsd.mkopt.mk to avoid share/mk dependency
52
53# Those that default to yes
54.for var in ${__DEFAULT_YES_OPTIONS}
55.if !defined(MK_${var})
56.if defined(WITHOUT_${var})			# WITHOUT always wins
57MK_${var}:=	no
58.else
59MK_${var}:=	yes
60.endif
61.else
62.if ${MK_${var}} != "yes" && ${MK_${var}} != "no"
63.error "Illegal value for MK_${var}: ${MK_${var}}"
64.endif
65.endif # !defined(MK_${var})
66.endfor
67.undef __DEFAULT_YES_OPTIONS
68
69# Those that default to no
70.for var in ${__DEFAULT_NO_OPTIONS}
71.if !defined(MK_${var})
72.if defined(WITH_${var}) && !defined(WITHOUT_${var}) # WITHOUT always wins
73MK_${var}:=	yes
74.else
75MK_${var}:=	no
76.endif
77.else
78.if ${MK_${var}} != "yes" && ${MK_${var}} != "no"
79.error "Illegal value for MK_${var}: ${MK_${var}}"
80.endif
81.endif # !defined(MK_${var})
82.endfor
83.undef __DEFAULT_NO_OPTIONS
84
85#
86# MK_*_SUPPORT options which default to "yes" unless their corresponding
87# MK_* variable is set to "no".
88#
89.for var in \
90    INET \
91    INET6
92.if defined(WITHOUT_${var}_SUPPORT) || ${MK_${var}} == "no"
93MK_${var}_SUPPORT:= no
94.else
95.if defined(KERNBUILDDIR)	# See if there's an opt_foo.h
96OPT_${var}!= cat ${KERNBUILDDIR}/opt_${var:tl}.h; echo
97.if ${OPT_${var}} == ""		# nothing -> no
98MK_${var}_SUPPORT:= no
99.else
100MK_${var}_SUPPORT:= yes
101.endif
102.else				# otherwise, yes
103MK_${var}_SUPPORT:= yes
104.endif
105.endif
106.endfor
107
108
109
110