1# SPDX-License-Identifier: BSD-2-Clause 2# 3# $Id: sys.mk,v 1.61 2024/10/30 23:46:26 sjg Exp $ 4# 5# @(#) Copyright (c) 2003-2023, 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# Avoid putting anything platform specific in here. 19 20# just in case we are an older bmake 21.MAKE.OS ?= ${HOST_OS} 22 23# _DEBUG_MAKE_FLAGS etc. 24.include <sys.debug.mk> 25 26.if !empty(_DEBUG_MAKE_FLAGS) 27.if ${_DEBUG_MAKE_SYS_DIRS:Uno:@x@${.CURDIR:M$x}@} != "" 28.MAKEFLAGS: ${_DEBUG_MAKE_FLAGS} 29.endif 30.endif 31 32# useful modifiers 33.include <sys.vars.mk> 34 35# we expect a recent bmake 36.if !defined(_TARGETS) 37# some things we do only once 38_TARGETS := ${.TARGETS} 39.-include <sys.env.mk> 40.endif 41 42# we need HOST_TARGET etc below. 43.include <host-target.mk> 44 45# early customizations 46.-include <local.sys.env.mk> 47 48# Popular suffixes for C++ 49CXX_SUFFIXES += .cc .cpp .cxx .C 50CXX_SUFFIXES := ${CXX_SUFFIXES:O:u} 51# and C++ Modules 52CCM_SUFFIXES += .ccm 53CCM_SUFFIXES := ${CCM_SUFFIXES:O:u} 54# precompiled modules 55PCM ?= .pcm 56 57SYS_MK ?= ${.PARSEDIR:tA}/${.PARSEFILE} 58SYS_MK := ${SYS_MK} 59 60# for systems that have an incompatible install 61INSTALL_SH ?= ${SYS_MK:H}/install-sh 62 63# find the OS specifics 64.if defined(SYS_OS_MK) 65.include <${SYS_OS_MK}> 66.else 67_sys_mk = 68.for x in ${HOST_TARGET} ${.MAKE.OS} ${.MAKE.OS:S,64,,} ${HOST_OSTYPE} ${MACHINE} Generic 69.if empty(_sys_mk) 70.-include <sys/$x.mk> 71_sys_mk := ${.MAKE.MAKEFILES:M*/$x.mk} 72.if !empty(_sys_mk) 73_sys_mk := sys/${_sys_mk:T} 74.endif 75.endif 76.if empty(_sys_mk) 77# might be an old style 78.-include <$x.sys.mk> 79_sys_mk := ${.MAKE.MAKEFILES:M*/$x.sys.mk:T} 80.endif 81.if !empty(_sys_mk) && ${MAKE_VERSION} >= 20220924 82.break 83.endif 84.endfor 85 86SYS_OS_MK := ${_sys_mk} 87.export SYS_OS_MK 88.endif 89 90# some sys/ may have set this to grep -E 91EGREP ?= egrep 92 93# some options we need to know early 94OPTIONS_DEFAULT_NO += \ 95 DIRDEPS_BUILD \ 96 DIRDEPS_CACHE 97 98OPTIONS_DEFAULT_DEPENDENT += \ 99 AUTO_OBJ/DIRDEPS_BUILD \ 100 META_ERROR_TARGET/DIRDEPS_BUILD \ 101 META_MODE/DIRDEPS_BUILD \ 102 STAGING/DIRDEPS_BUILD \ 103 STATIC_DIRDEPS_CACHE/DIRDEPS_CACHE \ 104 105.-include <options.mk> 106 107# :Uno incase options.mk not installed 108.if ${MK_DIRDEPS_BUILD:Uno} == "yes" 109.-include <sys.dirdeps.mk> 110.endif 111.if ${MK_META_MODE:Uno} == "yes" 112.-include <meta.sys.mk> 113.MAKE.MODE ?= meta verbose {META_MODE} 114.endif 115# make sure we have a harmless value 116.MAKE.MODE ?= normal 117 118# if you want objdirs make them automatic 119# and do it early before we compute .PATH 120.if ${MK_AUTO_OBJ:Uno} == "yes" || ${MKOBJDIRS:Uno} == "auto" 121.include <auto.obj.mk> 122.endif 123 124.if !empty(SRCTOP) 125.if ${.CURDIR} == ${SRCTOP} 126RELDIR = . 127.elif ${.CURDIR:M${SRCTOP}/*} 128RELDIR := ${.CURDIR:S,${SRCTOP}/,,} 129.endif 130.endif 131 132MACHINE_ARCH.host ?= ${_HOST_ARCH} 133MACHINE_ARCH.${MACHINE} ?= ${MACHINE} 134.if empty(MACHINE_ARCH) 135MACHINE_ARCH = ${MACHINE_ARCH.${MACHINE}} 136.endif 137 138.ifndef ROOT_GROUP 139ROOT_GROUP != sed -n '/:0:/{s/:.*//p;q;}' /etc/group 140.export ROOT_GROUP 141.endif 142 143unix ?= We run ${_HOST_OSNAME}. 144 145# We need a Bourne/POSIX shell 146MAKE_SHELL ?= ${.SHELL:Ush} 147SHELL := ${MAKE_SHELL} 148 149# A race condition in mkdir, means that it can bail if another 150# process made a dir that mkdir expected to. 151# We repeat the mkdir -p a number of times to try and work around this. 152# We stop looping as soon as the dir exists. 153# If we get to the end of the loop, a plain mkdir will issue an error. 154Mkdirs= Mkdirs() { \ 155 for d in $$*; do \ 156 for i in 1 2 3 4 5 6; do \ 157 mkdir -p $$d; \ 158 test -d $$d && return 0; \ 159 done; \ 160 mkdir $$d || exit $$?; \ 161 done; } 162 163# pick up generic suffix rules 164.include <suffixes.mk> 165 166# late customizations 167.-include <local.sys.mk> 168 169# if .CURDIR is matched by any entry in DEBUG_MAKE_DIRS we 170# will apply DEBUG_MAKE_FLAGS, now. 171.if !empty(_DEBUG_MAKE_FLAGS) 172.if ${_DEBUG_MAKE_DIRS:Uno:@x@${.CURDIR:M$x}@} != "" 173.MAKEFLAGS: ${_DEBUG_MAKE_FLAGS} 174.endif 175.endif 176