1# $FreeBSD$ 2# 3# The include file <bsd.obj.mk> handles creating the 'obj' directory 4# and cleaning up object files, etc. 5# 6# +++ variables +++ 7# 8# CLEANDIRS Additional directories to remove for the clean target. 9# 10# CLEANFILES Additional files to remove for the clean target. 11# 12# MAKEOBJDIR A pathname for the directory where the targets 13# are built. Note: MAKEOBJDIR is an *environment* variable 14# and works properly only if set as an environment variable, 15# not as a global or command line variable! 16# 17# E.g. use `env MAKEOBJDIR=temp-obj make' 18# 19# MAKEOBJDIRPREFIX Specifies somewhere other than /usr/obj to root the object 20# tree. Note: MAKEOBJDIRPREFIX is an *environment* variable 21# and works properly only if set as an environment variable, 22# not as a global or command line variable! 23# 24# E.g. use `env MAKEOBJDIRPREFIX=/somewhere/obj make' 25# 26# NO_OBJ Do not create object directories. This should not be set 27# if anything is built. 28# 29# +++ targets +++ 30# 31# clean: 32# remove ${CLEANFILES}; remove ${CLEANDIRS} and all contents. 33# 34# cleandir: 35# remove the build directory (and all its contents) created by obj 36# 37# obj: 38# create build directory. 39# 40 41.if !target(__<bsd.obj.mk>__) 42__<bsd.obj.mk>__: 43.include <bsd.own.mk> 44 45.if defined(MAKEOBJDIRPREFIX) 46CANONICALOBJDIR:=${MAKEOBJDIRPREFIX}${.CURDIR} 47.elif defined(MAKEOBJDIR) && ${MAKEOBJDIR:M/*} != "" 48CANONICALOBJDIR:=${MAKEOBJDIR} 49.else 50CANONICALOBJDIR:=/usr/obj${.CURDIR} 51.endif 52 53# 54# Warn of unorthodox object directory. 55# 56# The following directories are tried in order for ${.OBJDIR}: 57# 58# 1. ${MAKEOBJDIRPREFIX}/`pwd` 59# 2. ${MAKEOBJDIR} 60# 3. obj.${MACHINE} 61# 4. obj 62# 5. /usr/obj/`pwd` 63# 6. ${.CURDIR} 64# 65# If ${.OBJDIR} is constructed using canonical cases 1 or 5, or 66# case 2 (using MAKEOBJDIR), don't issue a warning. Otherwise, 67# issue a warning differentiating between cases 6 and (3 or 4). 68# 69objwarn: 70.if !defined(NO_OBJ) && ${.OBJDIR} != ${CANONICALOBJDIR} && \ 71 !(defined(MAKEOBJDIRPREFIX) && exists(${CANONICALOBJDIR}/)) && \ 72 !(defined(MAKEOBJDIR) && exists(${MAKEOBJDIR}/)) 73.if ${.OBJDIR} == ${.CURDIR} 74 @${ECHO} "Warning: Object directory not changed from original ${.CURDIR}" 75.elif exists(${.CURDIR}/obj.${MACHINE}/) || exists(${.CURDIR}/obj/) 76 @${ECHO} "Warning: Using ${.OBJDIR} as object directory instead of\ 77 canonical ${CANONICALOBJDIR}" 78.endif 79.endif 80 81.if !defined(NO_OBJ) 82.if !target(obj) 83obj: .PHONY 84 @if ! test -d ${CANONICALOBJDIR}/; then \ 85 mkdir -p ${CANONICALOBJDIR}; \ 86 if ! test -d ${CANONICALOBJDIR}/; then \ 87 ${ECHO} "Unable to create ${CANONICALOBJDIR}."; \ 88 exit 1; \ 89 fi; \ 90 ${ECHO} "${CANONICALOBJDIR} created for ${.CURDIR}"; \ 91 fi 92.endif 93 94.if !target(objlink) 95objlink: 96 @if test -d ${CANONICALOBJDIR}/; then \ 97 rm -f ${.CURDIR}/obj; \ 98 ln -s ${CANONICALOBJDIR} ${.CURDIR}/obj; \ 99 else \ 100 echo "No ${CANONICALOBJDIR} to link to - do a make obj."; \ 101 fi 102.endif 103.endif # !defined(NO_OBJ) 104 105# 106# where would that obj directory be? 107# 108.if !target(whereobj) 109whereobj: 110 @echo ${.OBJDIR} 111.endif 112 113.if ${CANONICALOBJDIR} != ${.CURDIR} && exists(${CANONICALOBJDIR}/) 114cleanobj: 115 @-rm -rf ${CANONICALOBJDIR} 116.else 117cleanobj: clean cleandepend 118.endif 119 @if [ -L ${.CURDIR}/obj ]; then rm -f ${.CURDIR}/obj; fi 120 121# Tell bmake not to look for generated files via .PATH 122NOPATH_FILES+= ${CLEANFILES} 123.if !empty(NOPATH_FILES) 124.NOPATH: ${NOPATH_FILES} 125.endif 126 127.if !target(clean) 128clean: 129.if defined(CLEANFILES) && !empty(CLEANFILES) 130 rm -f ${CLEANFILES} 131.endif 132.if defined(CLEANDIRS) && !empty(CLEANDIRS) 133 -rm -rf ${CLEANDIRS} 134.endif 135.endif 136 137cleandir: cleanobj 138 139.include <bsd.subdir.mk> 140 141.endif # !target(__<bsd.obj.mk>__) 142