bsd.obj.mk revision 18373 
1#	$Id: bsd.obj.mk,v 1.9 1996/09/18 06:09:17 swallace Exp $
2#
3# The include file <bsd.obj.mk> handles creating 'obj' directory
4# and cleaning up object files, log files etc.
5#
6#
7# +++ variables +++
8#
9# CLEANFILES	Additional files to remove for the clean and cleandir targets.
10#
11# MAKEOBJDIRPREFIX  Specify somewhere other than /usr/obj to root the object
12#		tree. Note: MAKEOBJDIRPREFIX is an *enviroment* variable
13#		and does work proper only if set as enviroment variable,
14#		not as global or command line variable! [obj]
15#
16#		E.g. use `env MAKEOBJDIRPREFIX=/somewhere/obj make'
17#
18# NOOBJ		Do not create build directory in object tree.
19#
20# OBJLINK	Create a symbolic link from ${CANONICALOBJDIR} to ${.CURDIR}/obj
21#		Note:  This BREAKS the read-only src tree rule!
22#
23# +++ targets +++
24#
25#	clean:
26#		remove a.out Errs errs mklog ${CLEANFILES} 
27#
28#	cleandir:
29#		remove the build directory (and all its contents) created by obj
30#
31#	obj:
32#		create build directory.
33#
34
35.if defined(MAKEOBJDIRPREFIX)
36CANONICALOBJDIR:=${MAKEOBJDIRPREFIX}${.CURDIR}
37.else
38CANONICALOBJDIR:=/usr/obj${.CURDIR}
39.endif
40
41#
42# Warn of unorthodox object directory
43#
44objwarn:
45.if !defined(NOOBJ)
46.if ${.OBJDIR} == ${.CURDIR}
47	@${ECHO} "Warning: Object directory not changed from original ${.CURDIR}"
48.elif !defined(MAKEOBJDIRPREFIX) && ${.OBJDIR} != ${CANONICALOBJDIR}
49.if !defined(MAKEOBJDIR)
50	@${ECHO} "Warning: Using ${.OBJDIR} as object directory instead of\
51		canonical ${CANONICALOBJDIR}"
52.endif
53.endif
54.endif
55
56
57
58.if !target(obj)
59.if defined(NOOBJ)
60obj:
61.else
62.if !defined(OBJLINK)
63obj:	_SUBDIR
64	@if ! test -d ${CANONICALOBJDIR}; then \
65		mkdir -p ${CANONICALOBJDIR}; \
66		if ! test -d ${CANONICALOBJDIR}; then \
67			${ECHO} "Unable to create ${CANONICALOBJDIR}."; \
68			exit 1; \
69		fi; \
70		${ECHO} "${CANONICALOBJDIR} created for ${.CURDIR}"; \
71	fi
72.else
73obj:	_SUBDIR
74	@if ! test -d ${CANONICALOBJDIR}; then \
75		mkdir -p ${CANONICALOBJDIR}; \
76		if ! test -d ${CANONICALOBJDIR}; then \
77			${ECHO} "Unable to create ${CANONICALOBJDIR}."; \
78			exit 1; \
79		fi; \
80		rm -f ${.CURDIR}/obj; \
81		ln -s ${CANONICALOBJDIR} ${.CURDIR}/obj; \
82		${ECHO} "${.CURDIR} -> ${CANONICALOBJDIR}"; \
83	fi
84.endif
85.endif
86.endif
87
88.if !target(objlink)
89objlink: _SUBDIR
90	@if test -d ${CANONICALOBJDIR}; then \
91		rm -f ${.CURDIR}/obj; \
92		ln -s ${CANONICALOBJDIR} ${.CURDIR}/obj; \
93	else \
94		echo "No ${CANONICALOBJDIR} to link to - do a make obj."; \
95	fi
96.endif
97
98#
99# where would that obj directory be?
100#
101.if !target(whereobj)
102whereobj:
103.if defined(NOOBJ)
104	@echo ${.CURDIR}
105.else
106	@if ! test -d ${CANONICALOBJDIR}; then \
107	    echo ${.CURDIR}; \
108	else \
109	    echo ${CANONICALOBJDIR}; \
110	fi
111.endif
112.endif
113
114#
115# cleanup
116#
117cleanobj:
118	@if [ -d ${CANONICALOBJDIR} ]; then \
119		rm -rf ${CANONICALOBJDIR}; \
120	else \
121		cd ${.CURDIR} && ${MAKE} clean cleandepend; \
122	fi
123.if defined(OBJLINK)
124	@if [ -h ${.CURDIR}/obj ]; then rm -f ${.CURDIR}/obj; fi
125.endif
126
127.if !target(cleanfiles)
128cleanfiles:
129	rm -f a.out Errs errs mklog ${CLEANFILES} 
130.endif
131
132# see bsd.dep.mk
133.if !target(cleandepend)
134cleandepend:
135	@rm -f .depend
136.endif
137
138.if !target(clean)
139clean: cleanfiles _SUBDIR
140.endif
141
142cleandir: cleanobj _SUBDIR
143