1# $FreeBSD$
2#
3# The include file <bsd.dep.mk> handles Makefile dependencies.
4#
5#
6# +++ variables +++
7#
8# CTAGS		A tags file generation program [gtags]
9#
10# CTAGSFLAGS	Options for ctags(1) [not set]
11#
12# DEPENDFILE	dependencies file [.depend]
13#
14# GTAGSFLAGS	Options for gtags(1) [-o]
15#
16# HTAGSFLAGS	Options for htags(1) [not set]
17#
18# MKDEP		Options for ${MKDEPCMD} [not set]
19#
20# MKDEPCMD	Makefile dependency list program [mkdep]
21#
22# SRCS          List of source files (c, c++, assembler)
23#
24# DPSRCS	List of source files which are needed for generating
25#		dependencies, ${SRCS} are always part of it.
26#
27# +++ targets +++
28#
29#	cleandepend:
30#		Remove depend and tags file
31#
32#	depend:
33#		Make the dependencies for the source files, and store
34#		them in the file ${DEPENDFILE}.
35#
36#	tags:
37#		In "ctags" mode, create a tags file for the source files.
38#		In "gtags" mode, create a (GLOBAL) gtags file for the
39#		source files.  If HTML is defined, htags(1) is also run
40#		after gtags(1).
41
42.if !target(__<bsd.init.mk>__)
43.error bsd.dep.mk cannot be included directly.
44.endif
45
46CTAGS?=		gtags
47CTAGSFLAGS?=
48GTAGSFLAGS?=	-o
49HTAGSFLAGS?=
50
51.if ${CC} != "cc"
52MKDEPCMD?=	CC='${CC}' mkdep
53.else
54MKDEPCMD?=	mkdep
55.endif
56DEPENDFILE?=	.depend
57
58# Keep `tags' here, before SRCS are mangled below for `depend'.
59.if !target(tags) && defined(SRCS) && !defined(NO_TAGS)
60tags: ${SRCS}
61.if ${CTAGS:T} == "gtags"
62	@cd ${.CURDIR} && ${CTAGS} ${GTAGSFLAGS} ${.OBJDIR}
63.if defined(HTML)
64	@cd ${.CURDIR} && htags ${HTAGSFLAGS} -d ${.OBJDIR} ${.OBJDIR}
65.endif
66.else
67	@${CTAGS} ${CTAGSFLAGS} -f /dev/stdout \
68	    ${.ALLSRC:N*.h} | sed "s;${.CURDIR}/;;" > ${.TARGET}
69.endif
70.endif
71
72.if defined(SRCS)
73CLEANFILES?=
74
75.if !exists(${.OBJDIR}/${DEPENDFILE})
76.for _S in ${SRCS:N*.[dhly]}
77${_S:R}.o: ${_S}
78.endfor
79.endif
80
81# Lexical analyzers
82.for _LSRC in ${SRCS:M*.l:N*/*}
83.for _LC in ${_LSRC:R}.c
84${_LC}: ${_LSRC}
85	${LEX} ${LFLAGS} -o${.TARGET} ${.ALLSRC}
86.if !exists(${.OBJDIR}/${DEPENDFILE})
87${_LC:R}.o: ${_LC}
88.endif
89SRCS:=	${SRCS:S/${_LSRC}/${_LC}/}
90CLEANFILES+= ${_LC}
91.endfor
92.endfor
93
94# Yacc grammars
95.for _YSRC in ${SRCS:M*.y:N*/*}
96.for _YC in ${_YSRC:R}.c
97SRCS:=	${SRCS:S/${_YSRC}/${_YC}/}
98CLEANFILES+= ${_YC}
99.if !empty(YFLAGS:M-d) && !empty(SRCS:My.tab.h)
100.ORDER: ${_YC} y.tab.h
101${_YC} y.tab.h: ${_YSRC}
102	${YACC} ${YFLAGS} ${.ALLSRC}
103	cp y.tab.c ${_YC}
104CLEANFILES+= y.tab.c y.tab.h
105.elif !empty(YFLAGS:M-d)
106.for _YH in ${_YC:R}.h
107${_YH}: ${_YC}
108${_YC}: ${_YSRC}
109	${YACC} ${YFLAGS} -o ${_YC} ${.ALLSRC}
110SRCS+=	${_YH}
111CLEANFILES+= ${_YH}
112.endfor
113.else
114${_YC}: ${_YSRC}
115	${YACC} ${YFLAGS} -o ${_YC} ${.ALLSRC}
116.endif
117.if !exists(${.OBJDIR}/${DEPENDFILE})
118${_YC:R}.o: ${_YC}
119.endif
120.endfor
121.endfor
122
123# DTrace probe definitions
124# libelf is currently needed for drti.o
125.if ${SRCS:M*.d}
126LDFLAGS+=	-lelf
127LDADD+=		${LIBELF}
128CFLAGS+=	-D_DTRACE_VERSION=1 -I${.OBJDIR}
129.endif
130.for _DSRC in ${SRCS:M*.d:N*/*}
131.for _D in ${_DSRC:R}
132DHDRS+=	${_D}.h
133${_D}.h: ${_DSRC}
134	${DTRACE} -xnolibs -h -s ${.ALLSRC}
135SRCS:=	${SRCS:S/${_DSRC}/${_D}.h/}
136OBJS+=	${_D}.o
137CLEANFILES+= ${_D}.h ${_D}.o
138${_D}.o: ${_D}.h ${OBJS:S/${_D}.o//}
139	${DTRACE} -xnolibs -G -o ${.TARGET} -s ${.CURDIR}/${_DSRC} \
140		${OBJS:S/${_D}.o//}
141.if defined(LIB)
142CLEANFILES+= ${_D}.So ${_D}.po
143${_D}.So: ${_D}.h ${SOBJS:S/${_D}.So//}
144	${DTRACE} -xnolibs -G -o ${.TARGET} -s ${.CURDIR}/${_DSRC} \
145		${SOBJS:S/${_D}.So//}
146${_D}.po: ${_D}.h ${POBJS:S/${_D}.po//}
147	${DTRACE} -xnolibs -G -o ${.TARGET} -s ${.CURDIR}/${_DSRC} \
148		${POBJS:S/${_D}.po//}
149.endif
150.endfor
151.endfor
152beforedepend: ${DHDRS}
153beforebuild: ${DHDRS}
154.endif
155
156.if !target(depend)
157.if defined(SRCS)
158depend: beforedepend ${DEPENDFILE} afterdepend
159
160# Tell bmake not to look for generated files via .PATH
161.NOPATH: ${DEPENDFILE}
162
163# Different types of sources are compiled with slightly different flags.
164# Split up the sources, and filter out headers and non-applicable flags.
165MKDEP_CFLAGS=	${CFLAGS:M-nostdinc*} ${CFLAGS:M-[BIDU]*} ${CFLAGS:M-std=*} \
166		${CFLAGS:M-ansi}
167MKDEP_CXXFLAGS=	${CXXFLAGS:M-nostdinc*} ${CXXFLAGS:M-[BIDU]*} \
168		${CXXFLAGS:M-std=*} ${CXXFLAGS:M-ansi} ${CXXFLAGS:M-stdlib=*}
169
170DPSRCS+= ${SRCS}
171${DEPENDFILE}: ${DPSRCS}
172	rm -f ${DEPENDFILE}
173.if !empty(DPSRCS:M*.[cS])
174	${MKDEPCMD} -f ${DEPENDFILE} -a ${MKDEP} \
175	    ${MKDEP_CFLAGS} ${.ALLSRC:M*.[cS]}
176.endif
177.if !empty(DPSRCS:M*.cc) || !empty(DPSRCS:M*.C) || !empty(DPSRCS:M*.cpp) || \
178    !empty(DPSRCS:M*.cxx)
179	${MKDEPCMD} -f ${DEPENDFILE} -a ${MKDEP} \
180	    ${MKDEP_CXXFLAGS} \
181	    ${.ALLSRC:M*.cc} ${.ALLSRC:M*.C} ${.ALLSRC:M*.cpp} ${.ALLSRC:M*.cxx}
182.endif
183.if target(_EXTRADEPEND)
184_EXTRADEPEND: .USE
185${DEPENDFILE}: _EXTRADEPEND
186.endif
187
188.ORDER: ${DEPENDFILE} afterdepend
189.else
190depend: beforedepend afterdepend
191.endif
192.if !target(beforedepend)
193beforedepend:
194.else
195.ORDER: beforedepend ${DEPENDFILE}
196.ORDER: beforedepend afterdepend
197.endif
198.if !target(afterdepend)
199afterdepend:
200.endif
201.endif
202
203.if !target(cleandepend)
204cleandepend:
205.if defined(SRCS)
206.if ${CTAGS:T} == "gtags"
207	rm -f ${DEPENDFILE} GPATH GRTAGS GSYMS GTAGS
208.if defined(HTML)
209	rm -rf HTML
210.endif
211.else
212	rm -f ${DEPENDFILE} tags
213.endif
214.endif
215.endif
216
217.if !target(checkdpadd) && (defined(DPADD) || defined(LDADD))
218_LDADD_FROM_DPADD=	${DPADD:C;^/usr/lib/lib(.*)\.a$;-l\1;}
219_LDADD_CANONICALIZED=	${LDADD:S/$//}
220checkdpadd:
221.if ${_LDADD_FROM_DPADD} != ${_LDADD_CANONICALIZED}
222	@echo ${.CURDIR}
223	@echo "DPADD -> ${_LDADD_FROM_DPADD}"
224	@echo "LDADD -> ${_LDADD_CANONICALIZED}"
225.endif
226.endif
227