xref: /freebsd/share/mk/bsd.init.mk (revision d6b92ffa990dc57d8a969a98e3ca4e25ba39cbb2)
1# $FreeBSD$
2
3# The include file <bsd.init.mk> includes <bsd.opts.mk>,
4# ../Makefile.inc and <bsd.own.mk>; this is used at the
5# top of all <bsd.*.mk> files that actually "build something".
6# bsd.opts.mk is included early so Makefile.inc can use the
7# MK_FOO variables.
8
9.if !target(__<bsd.init.mk>__)
10__<bsd.init.mk>__:
11.include <bsd.opts.mk>
12.-include "local.init.mk"
13.if exists(${.CURDIR}/../Makefile.inc)
14.include "${.CURDIR}/../Makefile.inc"
15.endif
16.include <bsd.own.mk>
17.MAIN: all
18
19# Handle INSTALL_AS_USER here to maximize the chance that
20# it has final authority over fooOWN and fooGRP.
21.if ${MK_INSTALL_AS_USER} != "no"
22.if !defined(_uid)
23_uid!=	id -u
24.export _uid
25.endif
26.if ${_uid} != 0
27.if !defined(_gid)
28_gid!=	id -g
29.export _gid
30.endif
31.for x in BIN CONF DOC DTB INFO KMOD LIB MAN NLS SHARE
32$xOWN=	${_uid}
33$xGRP=	${_gid}
34.endfor
35.endif
36.endif
37
38# Some targets need to know when something may build.  This is used to
39# optimize targets that are only needed when building something, such as
40# (not) reading in depend files.  For DIRDEPS_BUILD, it will only calculate
41# the dependency graph at .MAKE.LEVEL==0, so nothing should be built there.
42# Skip "build" logic if:
43# - DIRDEPS_BUILD at MAKELEVEL 0
44# - make -V is used without an override
45# - make install is used without other targets.  This is to avoid breaking
46#   things like 'make all install' or 'make foo install'.
47# - non-build targets are called
48.if ${MK_DIRDEPS_BUILD} == "yes" && ${.MAKE.LEVEL:U1} == 0 && \
49    ${BUILD_AT_LEVEL0:Uyes:tl} == "no" && !make(clean*)
50_SKIP_BUILD=	not building at level 0
51.elif !empty(.MAKEFLAGS:M-V${_V_DO_BUILD}) || \
52    ${.TARGETS:M*install*} == ${.TARGETS} || \
53    ${.TARGETS:Mclean*} == ${.TARGETS} || \
54    ${.TARGETS:Mdestroy*} == ${.TARGETS} || \
55    make(obj) || make(analyze) || make(print-dir)
56# Skip building, but don't show a warning.
57_SKIP_BUILD=
58.endif
59.if ${MK_DIRDEPS_BUILD} == "yes" && ${.MAKE.LEVEL} > 0 && !empty(_SKIP_BUILD)
60.warning ${_SKIP_BUILD}
61.endif
62
63beforebuild: .PHONY .NOTMAIN
64.if !defined(_SKIP_BUILD)
65all: beforebuild .WAIT
66.endif
67
68.if ${MK_META_MODE} == "yes"
69.if !exists(/dev/filemon) && \
70    ${UPDATE_DEPENDFILE:Uyes:tl} != "no" && !defined(NO_FILEMON) && \
71    !make(showconfig) && !make(print-dir) && ${.MAKEFLAGS:M-V} == ""
72.warning The filemon module (/dev/filemon) is not loaded.
73.warning META_MODE is less useful for incremental builds without filemon.
74.warning 'kldload filemon' or pass -DNO_FILEMON to suppress this warning.
75.endif
76.endif	# ${MK_META_MODE} == "yes"
77
78.endif	# !target(__<bsd.init.mk>__)
79