1# $Id: sys.mk,v 1.54 2022/09/09 17:44:29 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_META_MODE:Uno} == "yes" 89.-include <meta.sys.mk> 90.MAKE.MODE ?= meta verbose {META_MODE} 91.endif 92# make sure we have a harmless value 93.MAKE.MODE ?= normal 94 95# if you want objdirs make them automatic 96# and do it early before we compute .PATH 97.if ${MK_AUTO_OBJ:Uno} == "yes" || ${MKOBJDIRS:Uno} == "auto" 98.include <auto.obj.mk> 99.endif 100 101.if !empty(SRCTOP) 102.if ${.CURDIR} == ${SRCTOP} 103RELDIR = . 104.elif ${.CURDIR:M${SRCTOP}/*} 105RELDIR := ${.CURDIR:S,${SRCTOP}/,,} 106.endif 107.endif 108 109MACHINE_ARCH.host ?= ${_HOST_ARCH} 110MACHINE_ARCH.${MACHINE} ?= ${MACHINE} 111.if empty(MACHINE_ARCH) 112MACHINE_ARCH = ${MACHINE_ARCH.${MACHINE}} 113.endif 114 115.ifndef ROOT_GROUP 116ROOT_GROUP != sed -n /:0:/s/:.*//p /etc/group 117.export ROOT_GROUP 118.endif 119 120unix ?= We run ${_HOST_OSNAME}. 121 122# We need a Bourne/POSIX shell 123MAKE_SHELL ?= ${.SHELL:Ush} 124SHELL := ${MAKE_SHELL} 125 126# A race condition in mkdir, means that it can bail if another 127# process made a dir that mkdir expected to. 128# We repeat the mkdir -p a number of times to try and work around this. 129# We stop looping as soon as the dir exists. 130# If we get to the end of the loop, a plain mkdir will issue an error. 131Mkdirs= Mkdirs() { \ 132 for d in $$*; do \ 133 for i in 1 2 3 4 5 6; do \ 134 mkdir -p $$d; \ 135 test -d $$d && return 0; \ 136 done; \ 137 mkdir $$d || exit $$?; \ 138 done; } 139 140# this often helps with debugging 141.SUFFIXES: .cpp-out 142 143.c.cpp-out: 144 @${COMPILE.c:N-c} -E ${.IMPSRC} | grep -v '^[ ]*$$' 145 146${CXX_SUFFIXES:%=%.cpp-out}: 147 @${COMPILE.cc:N-c} -E ${.IMPSRC} | grep -v '^[ ]*$$' 148 149# late customizations 150.-include <local.sys.mk> 151 152# if .CURDIR is matched by any entry in DEBUG_MAKE_DIRS we 153# will apply DEBUG_MAKE_FLAGS, now. 154.if !empty(_DEBUG_MAKE_FLAGS) 155.if ${_DEBUG_MAKE_DIRS:Uno:@x@${.CURDIR:M$x}@} != "" 156.MAKEFLAGS: ${_DEBUG_MAKE_FLAGS} 157.endif 158.endif 159