mirror of
https://github.com/freebsd/freebsd-src
synced 2024-09-06 17:18:32 +00:00
77 lines
2.4 KiB
Makefile
77 lines
2.4 KiB
Makefile
# $Id: auto.obj.mk,v 1.12 2015/12/16 01:57:06 sjg Exp $
|
|
#
|
|
# @(#) Copyright (c) 2004, Simon J. Gerraty
|
|
#
|
|
# This file is provided in the hope that it will
|
|
# be of use. There is absolutely NO WARRANTY.
|
|
# Permission to copy, redistribute or otherwise
|
|
# use this file is hereby granted provided that
|
|
# the above copyright notice and this notice are
|
|
# left intact.
|
|
#
|
|
# Please send copies of changes and bug-fixes to:
|
|
# sjg@crufty.net
|
|
#
|
|
|
|
ECHO_TRACE ?= echo
|
|
|
|
.ifndef Mkdirs
|
|
# A race condition in some versions of mkdir, means that it can bail
|
|
# if another process made a dir that mkdir expected to.
|
|
# We repeat the mkdir -p a number of times to try and work around this.
|
|
# We stop looping as soon as the dir exists.
|
|
# If we get to the end of the loop, a plain mkdir will issue an error.
|
|
Mkdirs= Mkdirs() { \
|
|
for d in $$*; do \
|
|
for i in 1 2 3 4 5 6; do \
|
|
mkdir -p $$d; \
|
|
test -d $$d && return 0; \
|
|
done > /dev/null 2>&1; \
|
|
mkdir $$d || exit $$?; \
|
|
done; }
|
|
.endif
|
|
|
|
# if MKOBJDIRS is set to auto (and NOOBJ isn't defined) do some magic...
|
|
# This will automatically create objdirs as needed.
|
|
# Skip it if we are just doing 'clean'.
|
|
.if ${MK_AUTO_OBJ:Uno} == "yes"
|
|
MKOBJDIRS= auto
|
|
.endif
|
|
.if !defined(NOOBJ) && !defined(NO_OBJ) && ${MKOBJDIRS:Uno} == auto
|
|
# Use __objdir here so it is easier to tweak without impacting
|
|
# the logic.
|
|
.if !empty(MAKEOBJDIRPREFIX)
|
|
.if ${.CURDIR:M${MAKEOBJDIRPREFIX}/*} != ""
|
|
# we are already in obj tree!
|
|
__objdir?= ${.CURDIR}
|
|
.endif
|
|
__objdir?= ${MAKEOBJDIRPREFIX}${.CURDIR}
|
|
.endif
|
|
__objdir?= ${MAKEOBJDIR:Uobj}
|
|
__objdir:= ${__objdir}
|
|
.if ${.OBJDIR:tA} != ${__objdir:tA}
|
|
# We need to chdir, make the directory if needed
|
|
.if !exists(${__objdir}/) && \
|
|
(${.TARGETS} == "" || ${.TARGETS:Nclean*:N*clean:Ndestroy*} != "")
|
|
# This will actually make it...
|
|
__objdir_made != echo ${__objdir}/; umask ${OBJDIR_UMASK:U002}; \
|
|
${ECHO_TRACE} "[Creating objdir ${__objdir}...]" >&2; \
|
|
${Mkdirs}; Mkdirs ${__objdir}
|
|
.endif
|
|
# This causes make to use the specified directory as .OBJDIR
|
|
.OBJDIR: ${__objdir}
|
|
.if ${.OBJDIR:tA} != ${__objdir:tA}
|
|
# we did not get what we want - do we care?
|
|
.if ${__objdir_made:Uno:M${__objdir}/*} != ""
|
|
# watch out for __objdir being relative path
|
|
.if !(${__objdir:M/*} == "" && ${.OBJDIR:tA} == ${${.CURDIR}/${__objdir}:L:tA})
|
|
.error could not use ${__objdir}: .OBJDIR=${.OBJDIR}
|
|
.endif
|
|
.endif
|
|
# apparently we can live with it
|
|
# make sure we know what we have
|
|
.OBJDIR: ${.CURDIR}
|
|
.endif
|
|
.endif
|
|
.endif
|