1# $Id: sys.mk,v 1.47 2020/04/17 21:08:17 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 options we need to know early 72OPTIONS_DEFAULT_NO += \ 73 DIRDEPS_BUILD \ 74 DIRDEPS_CACHE 75 76OPTIONS_DEFAULT_DEPENDENT += \ 77 AUTO_OBJ/DIRDEPS_BUILD \ 78 META_MODE/DIRDEPS_BUILD \ 79 STAGING/DIRDEPS_BUILD \ 80 81.-include <options.mk> 82 83.if ${MK_DIRDEPS_BUILD:Uno} == "yes" 84MK_META_MODE = yes 85.-include <meta.sys.mk> 86.elif ${MK_META_MODE:Uno} == "yes" 87.MAKE.MODE = meta verbose ${META_MODE} 88.endif 89# make sure we have a harmless value 90.MAKE.MODE ?= normal 91 92# if you want objdirs make them automatic 93# and do it early before we compute .PATH 94.if ${MK_AUTO_OBJ:Uno} == "yes" || ${MKOBJDIRS:Uno} == "auto" 95.include <auto.obj.mk> 96.endif 97 98.if !empty(SRCTOP) 99.if ${.CURDIR} == ${SRCTOP} 100RELDIR = . 101.elif ${.CURDIR:M${SRCTOP}/*} 102RELDIR := ${.CURDIR:S,${SRCTOP}/,,} 103.endif 104.endif 105 106MACHINE_ARCH.host ?= ${_HOST_ARCH} 107MACHINE_ARCH.${MACHINE} ?= ${MACHINE} 108.if empty(MACHINE_ARCH) 109MACHINE_ARCH = ${MACHINE_ARCH.${MACHINE}} 110.endif 111 112.ifndef ROOT_GROUP 113ROOT_GROUP != sed -n /:0:/s/:.*//p /etc/group 114.export ROOT_GROUP 115.endif 116 117unix ?= We run ${_HOST_OSNAME}. 118 119# We need a Bourne/POSIX shell 120MAKE_SHELL ?= sh 121SHELL ?= ${MAKE_SHELL} 122 123# A race condition in mkdir, means that it can bail if another 124# process made a dir that mkdir expected to. 125# We repeat the mkdir -p a number of times to try and work around this. 126# We stop looping as soon as the dir exists. 127# If we get to the end of the loop, a plain mkdir will issue an error. 128Mkdirs= Mkdirs() { \ 129 for d in $$*; do \ 130 for i in 1 2 3 4 5 6; do \ 131 mkdir -p $$d; \ 132 test -d $$d && return 0; \ 133 done; \ 134 mkdir $$d || exit $$?; \ 135 done; } 136 137# this often helps with debugging 138.SUFFIXES: .cpp-out 139 140.c.cpp-out: 141 @${COMPILE.c:N-c} -E ${.IMPSRC} | grep -v '^[ ]*$$' 142 143${CXX_SUFFIXES:%=%.cpp-out}: 144 @${COMPILE.cc:N-c} -E ${.IMPSRC} | grep -v '^[ ]*$$' 145 146# late customizations 147.-include <local.sys.mk> 148 149# if .CURDIR is matched by any entry in DEBUG_MAKE_DIRS we 150# will apply DEBUG_MAKE_FLAGS, now. 151.if !empty(_DEBUG_MAKE_FLAGS) 152.if ${_DEBUG_MAKE_DIRS:Uno:@x@${.CURDIR:M$x}@} != "" 153.MAKEFLAGS: ${_DEBUG_MAKE_FLAGS} 154.endif 155.endif 156