1# SPDX-License-Identifier: BSD-2-Clause
2#
3# $Id: init.mk,v 1.38 2024/04/09 17:18:24 sjg Exp $
4#
5#	@(#) Copyright (c) 2002-2024, Simon J. Gerraty
6#
7#	This file is provided in the hope that it will
8#	be of use.  There is absolutely NO WARRANTY.
9#	Permission to copy, redistribute or otherwise
10#	use this file is hereby granted provided that
11#	the above copyright notice and this notice are
12#	left intact.
13#
14#	Please send copies of changes and bug-fixes to:
15#	sjg@crufty.net
16#
17
18# should be set properly in sys.mk
19_this ?= ${.PARSEFILE:S,bsd.,,}
20
21.if !target(__${_this}__)
22__${_this}__: .NOTMAIN
23
24.if ${MAKE_VERSION:U0} > 20100408
25_this_mk_dir := ${.PARSEDIR:tA}
26.else
27_this_mk_dir := ${.PARSEDIR}
28.endif
29
30.-include <local.init.mk>
31.-include <${.CURDIR:H}/Makefile.inc>
32.include <own.mk>
33.include <compiler.mk>
34
35# should have been set by sys.mk
36CXX_SUFFIXES ?= .cc .cpp .cxx .C
37CCM_SUFFIXES ?= .ccm
38PCM ?= .pcm
39# ${PICO} is used for PIC object files.
40PICO ?= .pico
41
42# SRCS which do not end up in OBJS
43NO_OBJS_SRCS_SUFFIXES ?= .h ${CCM_SUFFIXES} .sh
44OBJS_SRCS_FILTER += ${NO_OBJS_SRCS_SUFFIXES:@x@N*$x@:ts:}
45
46.if defined(PROG_CXX) || ${SRCS:Uno:${CXX_SUFFIXES:S,^,N*,:ts:}} != ${SRCS:Uno:N/}
47_CCLINK ?=	${CXX}
48.endif
49_CCLINK ?=	${CC}
50
51.if !empty(WARNINGS_SET) || !empty(WARNINGS_SET_${MACHINE_ARCH})
52.include <warnings.mk>
53.endif
54
55# these are applied in order, least specific to most
56VAR_QUALIFIER_LIST += \
57	${TARGET_SPEC_VARS:UMACHINE:@v@${$v}@} \
58	${COMPILER_TYPE} \
59	${.TARGET:T:R} \
60	${.TARGET:T} \
61	${.IMPSRC:T} \
62	${VAR_QUALIFIER_XTRA_LIST}
63
64QUALIFIED_VAR_LIST += \
65	CFLAGS \
66	COPTS \
67	CPPFLAGS \
68	CPUFLAGS \
69	LDFLAGS \
70	SRCS \
71
72# a final :U avoids errors if someone uses :=
73.for V in ${QUALIFIED_VAR_LIST:O:u:@q@$q $q_LAST@}
74.for Q in ${VAR_QUALIFIER_LIST:u}
75$V += ${$V_$Q:U${$V.$Q:U}} ${V_$Q_${COMPILER_TYPE}:U${$V.$Q.${COMPILER_TYPE}:U}}
76.endfor
77.endfor
78
79CC_PG?= -pg
80CXX_PG?= ${CC_PG}
81CC_PIC?= -DPIC
82CXX_PIC?= ${CC_PIC}
83PROFFLAGS?= -DGPROF -DPROF
84
85.if ${.MAKE.LEVEL:U1} == 0 && ${MK_DIRDEPS_BUILD:Uno} == "yes"
86.if ${RELDIR} == "."
87# top-level targets that are ok at level 0
88DIRDEPS_BUILD_LEVEL0_TARGETS += clean* destroy*
89M_ListToSkip?= O:u:S,^,N,:ts:
90.if ${.TARGETS:Uall:${DIRDEPS_BUILD_LEVEL0_TARGETS:${M_ListToSkip}}} != ""
91# this tells lib.mk and prog.mk to not actually build anything
92_SKIP_BUILD = not building at level 0
93.endif
94.elif ${.TARGETS:U:Nall} == ""
95_SKIP_BUILD = not building at level 0
96# first .MAIN is what counts
97.MAIN: dirdeps
98.endif
99.endif
100
101.MAIN:		all
102
103.if !defined(.PARSEDIR)
104# no-op is the best we can do if not bmake.
105.WAIT:
106.endif
107
108# define this once for consistency
109.if !defined(_SKIP_BUILD)
110# beforebuild is a hook for things that must be done early
111all: beforebuild .WAIT realbuild
112.else
113all: .PHONY
114.if !empty(_SKIP_BUILD) && ${.MAKEFLAGS:M-V} == ""
115.warning ${_SKIP_BUILD}
116.endif
117.endif
118beforebuild:
119realbuild:
120
121.endif
122