1# $Id: sys.mk,v 1.55 2023/05/10 19:23:26 sjg Exp $ 2# 3# @(#) Copyright (c) 2003-2009, 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# _DEBUG_MAKE_FLAGS etc. 19.include <sys.debug.mk> 20 21.if !empty(_DEBUG_MAKE_FLAGS) 22.if ${_DEBUG_MAKE_SYS_DIRS:Uno:@x@${.CURDIR:M$x}@} != "" 23.MAKEFLAGS: ${_DEBUG_MAKE_FLAGS} 24.endif 25.endif 26 27# useful modifiers 28.include <sys.vars.mk> 29 30# we expect a recent bmake 31.if !defined(_TARGETS) 32# some things we do only once 33_TARGETS := ${.TARGETS} 34.-include <sys.env.mk> 35.endif 36 37# we need HOST_TARGET etc below. 38.include <host-target.mk> 39 40# early customizations 41.-include <local.sys.env.mk> 42 43# Popular suffixes for C++ 44CXX_SUFFIXES += .cc .cpp .cxx .C 45CXX_SUFFIXES := ${CXX_SUFFIXES:O:u} 46 47# find the OS specifics 48.if defined(SYS_OS_MK) 49.include <${SYS_OS_MK}> 50.else 51_sys_mk = 52.for x in ${HOST_OSTYPE} ${HOST_TARGET} ${HOST_OS} ${MACHINE} Generic 53.if empty(_sys_mk) 54.-include <sys/$x.mk> 55_sys_mk := ${.MAKE.MAKEFILES:M*/$x.mk} 56.if !empty(_sys_mk) 57_sys_mk := sys/${_sys_mk:T} 58.endif 59.endif 60.if empty(_sys_mk) 61# might be an old style 62.-include <$x.sys.mk> 63_sys_mk := ${.MAKE.MAKEFILES:M*/$x.sys.mk:T} 64.endif 65.endfor 66 67SYS_OS_MK := ${_sys_mk} 68.export SYS_OS_MK 69.endif 70 71# some sys/ may have set this to grep -E 72EGREP ?= egrep 73 74# some options we need to know early 75OPTIONS_DEFAULT_NO += \ 76 DIRDEPS_BUILD \ 77 DIRDEPS_CACHE 78 79OPTIONS_DEFAULT_DEPENDENT += \ 80 AUTO_OBJ/DIRDEPS_BUILD \ 81 META_MODE/DIRDEPS_BUILD \ 82 STAGING/DIRDEPS_BUILD \ 83 STATIC_DIRDEPS_CACHE/DIRDEPS_CACHE \ 84 85.-include <options.mk> 86 87# :Uno incase options.mk not installed 88.if ${MK_DIRDEPS_BUILD:Uno} == "yes" 89.-include <sys.dirdeps.mk> 90.endif 91.if ${MK_META_MODE:Uno} == "yes" 92.-include <meta.sys.mk> 93.MAKE.MODE ?= meta verbose {META_MODE} 94.endif 95# make sure we have a harmless value 96.MAKE.MODE ?= normal 97 98# if you want objdirs make them automatic 99# and do it early before we compute .PATH 100.if ${MK_AUTO_OBJ:Uno} == "yes" || ${MKOBJDIRS:Uno} == "auto" 101.include <auto.obj.mk> 102.endif 103 104.if !empty(SRCTOP) 105.if ${.CURDIR} == ${SRCTOP} 106RELDIR = . 107.elif ${.CURDIR:M${SRCTOP}/*} 108RELDIR := ${.CURDIR:S,${SRCTOP}/,,} 109.endif 110.endif 111 112MACHINE_ARCH.host ?= ${_HOST_ARCH} 113MACHINE_ARCH.${MACHINE} ?= ${MACHINE} 114.if empty(MACHINE_ARCH) 115MACHINE_ARCH = ${MACHINE_ARCH.${MACHINE}} 116.endif 117 118.ifndef ROOT_GROUP 119ROOT_GROUP != sed -n /:0:/s/:.*//p /etc/group 120.export ROOT_GROUP 121.endif 122 123unix ?= We run ${_HOST_OSNAME}. 124 125# We need a Bourne/POSIX shell 126MAKE_SHELL ?= ${.SHELL:Ush} 127SHELL := ${MAKE_SHELL} 128 129# A race condition in mkdir, means that it can bail if another 130# process made a dir that mkdir expected to. 131# We repeat the mkdir -p a number of times to try and work around this. 132# We stop looping as soon as the dir exists. 133# If we get to the end of the loop, a plain mkdir will issue an error. 134Mkdirs= Mkdirs() { \ 135 for d in $$*; do \ 136 for i in 1 2 3 4 5 6; do \ 137 mkdir -p $$d; \ 138 test -d $$d && return 0; \ 139 done; \ 140 mkdir $$d || exit $$?; \ 141 done; } 142 143# this often helps with debugging 144.SUFFIXES: .cpp-out 145 146.c.cpp-out: 147 @${COMPILE.c:N-c} -E ${.IMPSRC} | grep -v '^[ ]*$$' 148 149${CXX_SUFFIXES:%=%.cpp-out}: 150 @${COMPILE.cc:N-c} -E ${.IMPSRC} | grep -v '^[ ]*$$' 151 152# late customizations 153.-include <local.sys.mk> 154 155# if .CURDIR is matched by any entry in DEBUG_MAKE_DIRS we 156# will apply DEBUG_MAKE_FLAGS, now. 157.if !empty(_DEBUG_MAKE_FLAGS) 158.if ${_DEBUG_MAKE_DIRS:Uno:@x@${.CURDIR:M$x}@} != "" 159.MAKEFLAGS: ${_DEBUG_MAKE_FLAGS} 160.endif 161.endif 162