1# $Id: sys.mk,v 1.57 2023/07/14 16:30:37 sjg Exp $ 2# 3# @(#) Copyright (c) 2003-2023, Simon J. Gerraty 4# 5# This file is provided in the hope that it will 6# be of use. There is absolutely NO WARRANTY. 7# Permission to copy, redistribute or otherwise 8# use this file is hereby granted provided that 9# the above copyright notice and this notice are 10# left intact. 11# 12# Please send copies of changes and bug-fixes to: 13# sjg@crufty.net 14# 15 16# Avoid putting anything platform specific in here. 17 18# just in case we are an older bmake 19.MAKE.OS ?= ${HOST_OS} 20 21# _DEBUG_MAKE_FLAGS etc. 22.include <sys.debug.mk> 23 24.if !empty(_DEBUG_MAKE_FLAGS) 25.if ${_DEBUG_MAKE_SYS_DIRS:Uno:@x@${.CURDIR:M$x}@} != "" 26.MAKEFLAGS: ${_DEBUG_MAKE_FLAGS} 27.endif 28.endif 29 30# useful modifiers 31.include <sys.vars.mk> 32 33# we expect a recent bmake 34.if !defined(_TARGETS) 35# some things we do only once 36_TARGETS := ${.TARGETS} 37.-include <sys.env.mk> 38.endif 39 40# we need HOST_TARGET etc below. 41.include <host-target.mk> 42 43# early customizations 44.-include <local.sys.env.mk> 45 46# Popular suffixes for C++ 47CXX_SUFFIXES += .cc .cpp .cxx .C 48CXX_SUFFIXES := ${CXX_SUFFIXES:O:u} 49 50SYS_MK ?= ${.PARSEDIR:tA}/${.PARSEFILE} 51SYS_MK := ${SYS_MK} 52 53# for systems that have an incompatible install 54INSTALL_SH ?= ${SYS_MK:H}/install-sh 55 56# find the OS specifics 57.if defined(SYS_OS_MK) 58.include <${SYS_OS_MK}> 59.else 60_sys_mk = 61.for x in ${HOST_TARGET} ${.MAKE.OS} ${.MAKE.OS:S,64,,} ${HOST_OSTYPE} ${MACHINE} Generic 62.if empty(_sys_mk) 63.-include <sys/$x.mk> 64_sys_mk := ${.MAKE.MAKEFILES:M*/$x.mk} 65.if !empty(_sys_mk) 66_sys_mk := sys/${_sys_mk:T} 67.endif 68.endif 69.if empty(_sys_mk) 70# might be an old style 71.-include <$x.sys.mk> 72_sys_mk := ${.MAKE.MAKEFILES:M*/$x.sys.mk:T} 73.endif 74.if !empty(_sys_mk) && ${MAKE_VERSION} >= 20220924 75.break 76.endif 77.endfor 78 79SYS_OS_MK := ${_sys_mk} 80.export SYS_OS_MK 81.endif 82 83# some sys/ may have set this to grep -E 84EGREP ?= egrep 85 86# some options we need to know early 87OPTIONS_DEFAULT_NO += \ 88 DIRDEPS_BUILD \ 89 DIRDEPS_CACHE 90 91OPTIONS_DEFAULT_DEPENDENT += \ 92 AUTO_OBJ/DIRDEPS_BUILD \ 93 META_MODE/DIRDEPS_BUILD \ 94 STAGING/DIRDEPS_BUILD \ 95 STATIC_DIRDEPS_CACHE/DIRDEPS_CACHE \ 96 97.-include <options.mk> 98 99# :Uno incase options.mk not installed 100.if ${MK_DIRDEPS_BUILD:Uno} == "yes" 101.-include <sys.dirdeps.mk> 102.endif 103.if ${MK_META_MODE:Uno} == "yes" 104.-include <meta.sys.mk> 105.MAKE.MODE ?= meta verbose {META_MODE} 106.endif 107# make sure we have a harmless value 108.MAKE.MODE ?= normal 109 110# if you want objdirs make them automatic 111# and do it early before we compute .PATH 112.if ${MK_AUTO_OBJ:Uno} == "yes" || ${MKOBJDIRS:Uno} == "auto" 113.include <auto.obj.mk> 114.endif 115 116.if !empty(SRCTOP) 117.if ${.CURDIR} == ${SRCTOP} 118RELDIR = . 119.elif ${.CURDIR:M${SRCTOP}/*} 120RELDIR := ${.CURDIR:S,${SRCTOP}/,,} 121.endif 122.endif 123 124MACHINE_ARCH.host ?= ${_HOST_ARCH} 125MACHINE_ARCH.${MACHINE} ?= ${MACHINE} 126.if empty(MACHINE_ARCH) 127MACHINE_ARCH = ${MACHINE_ARCH.${MACHINE}} 128.endif 129 130.ifndef ROOT_GROUP 131ROOT_GROUP != sed -n '/:0:/{s/:.*//p;q;}' /etc/group 132.export ROOT_GROUP 133.endif 134 135unix ?= We run ${_HOST_OSNAME}. 136 137# We need a Bourne/POSIX shell 138MAKE_SHELL ?= ${.SHELL:Ush} 139SHELL := ${MAKE_SHELL} 140 141# A race condition in mkdir, means that it can bail if another 142# process made a dir that mkdir expected to. 143# We repeat the mkdir -p a number of times to try and work around this. 144# We stop looping as soon as the dir exists. 145# If we get to the end of the loop, a plain mkdir will issue an error. 146Mkdirs= Mkdirs() { \ 147 for d in $$*; do \ 148 for i in 1 2 3 4 5 6; do \ 149 mkdir -p $$d; \ 150 test -d $$d && return 0; \ 151 done; \ 152 mkdir $$d || exit $$?; \ 153 done; } 154 155# this often helps with debugging 156.SUFFIXES: .cpp-out 157 158.c.cpp-out: 159 @${COMPILE.c:N-c} -E ${.IMPSRC} | grep -v '^[ ]*$$' 160 161${CXX_SUFFIXES:%=%.cpp-out}: 162 @${COMPILE.cc:N-c} -E ${.IMPSRC} | grep -v '^[ ]*$$' 163 164# late customizations 165.-include <local.sys.mk> 166 167# if .CURDIR is matched by any entry in DEBUG_MAKE_DIRS we 168# will apply DEBUG_MAKE_FLAGS, now. 169.if !empty(_DEBUG_MAKE_FLAGS) 170.if ${_DEBUG_MAKE_DIRS:Uno:@x@${.CURDIR:M$x}@} != "" 171.MAKEFLAGS: ${_DEBUG_MAKE_FLAGS} 172.endif 173.endif 174