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Add a target to check the consistency of the make OBJFORMAT variable

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with the object format determined by objformat. This prevents foot
shooting (a form of boot scooting for hackers?) where local changes
to /etc/make.conf or /etc/make.conf.local try to override OBJFORMAT
in an incomplete way.
This commit is contained in:
John Birrell 1998-09-01 00:39:02 +00:00
parent c155091cc8
commit ff1284f6c0
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=38715
1 changed files with 25 additions and 2 deletions
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27
Makefile.inc1
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@ -1,5 +1,5 @@
#
# $Id: Makefile.inc1,v 1.1 1998/08/31 01:08:08 jb Exp $
# $Id: Makefile.inc1,v 1.2 1998/08/31 20:43:13 jb Exp $
#
# Make command line options:
# -DCLOBBER will remove /usr/include
@ -222,7 +222,7 @@ IXMAKE= ${XMAKEENV} ${WORLDTMP}/usr/bin/make
# Attempt to rebuild the entire system, with reasonable chance of
# success, regardless of how old your existing system is.
#
buildworld:
buildworld: check-objformat
.if !defined(NOCLEAN)
@echo
@echo "--------------------------------------------------------------"
@ -941,6 +941,29 @@ legacy-install:
.endif
# Get the object format that the tools see.
#
#
.if exists(/usr/bin/objformat)
__OBJFORMAT!= objformat
.else
__OBJFORMAT= ${OBJFORMAT}
.endif
#
# Check if the local /etc/make.conf or /etc/make.conf.local have attempted
# to override the OBJFORMAT without updating the environment for the tools
# to see.
#
check-objformat :
.if ${__OBJFORMAT} != ${OBJFORMAT}
@/bin/sh -c "echo \"It looks like you set OBJFORMAT=${OBJFORMAT} in /etc/make.conf. Don't do that!\" "
@/bin/sh -c "echo \"If you want to override the installed object format, you must set OBJFORMAT\" "
@/bin/sh -c "echo \"in your environment.\" "
@exit 1
.endif
.for __target in clean cleandepend cleandir depend obj
.for entry in ${SUBDIR}
${entry}.${__target}__D: .PHONY