3 # $Id: autodep.mk,v 1.38 2020/08/19 17:51:53 sjg Exp $
5 # @(#) Copyright (c) 1999-2010, Simon J. Gerraty
7 # This file is provided in the hope that it will
8 # be of use. There is absolutely NO WARRANTY.
9 # Permission to copy, redistribute or otherwise
10 # use this file is hereby granted provided that
11 # the above copyright notice and this notice are
14 # Please send copies of changes and bug-fixes to:
17 # This module provides automagic dependency generation along the
18 # lines suggested in the GNU make.info
19 # The depend target is mainly for backwards compatibility,
20 # dependencies are normally updated as part of compilation.
22 .if !target(__${.PARSEFILE}__)
26 .for d in ${DEPENDFILE:N.depend}
27 # bmake only groks .depend
28 .if ${MAKE_VERSION} < 20160218
35 # it does nothing if SRCS is not defined or is empty
36 .if defined(SRCS) && !empty(SRCS)
38 __depsrcs=${DEPSRCS:M*.c}
39 __depsrcs+=${DEPSRCS:M*.y}
40 __depsrcs+=${DEPSRCS:M*.l}
41 __depsrcs+=${DEPSRCS:M*.s}
42 __depsrcs+=${DEPSRCS:M*.S}
43 __depsrcs+=${DEPSRCS:M*.cc}
44 __depsrcs+=${DEPSRCS:M*.cpp}
45 __depsrcs+=${DEPSRCS:M*.C}
46 __depsrcs+=${DEPSRCS:M*.cxx}
47 __depsrcs+=${DEPSRCS:M*.pc}
49 .for s in ${__depsrcs}
53 __depsrcs:=${__depsrcs:T:R:S/$/.d/g}
54 # we also need to handle makefiles where the .d's from __depsrcs
55 # don't match those from OBJS
56 # we avoid using := here, since the modifier applied to OBJS
57 # can cause trouble if there are any undefined vars in OBJS.
58 __dependsrcsx?= ${__depsrcs} ${OBJS:S/.o/.d/}
59 __dependsrcs= ${__dependsrcsx:O:u}
61 # clean up any .c files we may have generated
62 #__gensrcs:= ${DEPSRCS:M*.y} ${DEPSRCS:M*.l}
63 #CLEANFILES+= ${__gensrcs:T:R:S/$/.c/g}
65 # set this to -MMD to ignore /usr/include
66 # actually it ignores <> so may not be a great idea
68 # -MF etc not available on all gcc versions.
69 # we "fix" the .o later
70 CFLAGS_MF?=-MF ${.TARGET:T:R}.d -MT ${.TARGET:T:R}.o
71 CFLAGS+= ${CFLAGS_MD} ${CFLAGS_MF}
75 # watch out for people who don't use CPPFLAGS
76 CPPFLAGS_MD=${CFLAGS:M-[IUD]*} ${CPPFLAGS}
77 CXXFLAGS_MD=${CXXFLAGS:M-[IUD]*} ${CPPFLAGS}
79 # just in case these need to be different
83 # should have been set by sys.mk
84 CXX_SUFFIXES?= .cc .cpp .cxx .C
86 # so we can do an explicit make depend, but not otherwise
92 @echo updating dependencies for $<
94 @${MAKE_SHELL} -ec "${CC_MD} -M ${CPPFLAGS_MD} y.tab.c | sed '/:/s/^/$@ /' > $@" || { ${RM} -f y.tab.c $@; false; }
98 @echo updating dependencies for $<
100 @${MAKE_SHELL} -ec "${CC_MD} -M ${CPPFLAGS_MD} lex.yy.c | sed '/:/s/^/$@ /' > $@" || { ${RM} -f lex.yy.c $@; false; }
104 @echo updating dependencies for $<
105 @${MAKE_SHELL} -ec "${CC_MD} -M ${CPPFLAGS_MD} $< | sed '/:/s/^/$@ /' > $@" || { ${RM} -f $@; false; }
108 @echo updating dependencies for $<
109 @${MAKE_SHELL} -ec "${CC_MD} -M ${CPPFLAGS_MD} ${AINC} $< | sed '/:/s/^/$@ /' > $@" || { ${RM} -f $@; false; }
111 ${CXX_SUFFIXES:%=%.d}:
112 @echo updating dependencies for $<
113 @${MAKE_SHELL} -ec "${CXX_MD} -M ${CXXFLAGS_MD} $< | sed '/:/s/^/$@ /' > $@" || { ${RM} -f $@; false; }
117 ${CC_MD} ${CFLAGS_MD:S/D//} ${CPPFLAGS_MD} y.tab.c > $@ || { ${RM} -f y.tab.c $@; false; }
122 ${CC_MD} ${CFLAGS_MD:S/D//} ${CPPFLAGS_MD} lex.yy.c > $@ || { ${RM} -f lex.yy.c $@; false; }
126 ${CC_MD} ${CFLAGS_MD:S/D//} ${CPPFLAGS_MD} $< > $@ || { ${RM} -f $@; false; }
129 ${CC_MD} ${CFLAGS_MD:S/D//} ${CPPFLAGS_MD} ${AINC} $< > $@ || { ${RM} -f $@; false; }
131 ${CXX_SUFFIXES:%=%.d}:
132 ${CXX_MD} ${CFLAGS_MD:S/D//} ${CXXFLAGS_MD} $< > $@ || { ${RM} -f $@; false; }
136 depend: beforedepend ${DEPENDFILE} afterdepend _SUBDIRUSE
138 ${DEPENDFILE}: ${DEPSRCS} ${__dependsrcs}
139 .NOPATH: ${__dependsrcs}
140 .OPTIONAL: ${__dependsrcs}
142 .endif # make(depend)
145 # make sure the .d's are generated/updated
146 ${PROG} ${_LIBS}: ${DEPENDFILE}
149 .ORDER: beforedepend ${DEPENDFILE} afterdepend
151 .if ${.OBJDIR} != ${.CURDIR}
154 __depfiles= ${__dependsrcs}
157 DEPCLEANFILES= ${DEPENDFILE} ${__depfiles} y.tab.d *.tmp.d
159 cleandir: cleanautodepend
161 ${RM} -f ${DEPCLEANFILES}
163 CLEANFILES+= ${DEPCLEANFILES}
165 .if defined(__dependsrcs) && !empty(__dependsrcs)
166 .if make(depend) || !(make(clean*) || make(destroy*) || make(obj) || make(*install) || make(install-*))
167 # this ensures we do the right thing if only building a shared or
169 OBJ_EXTENSIONS?=.o .po .so .So
170 MDLIB_SED= -e '/:/s,^\([^\.:]*\)\.[psS]*o,${OBJ_EXTENSIONS:S,^,\1,},'
173 MD_SED=sed ${MDLIB_SED}
178 # arrange to put some variable names into ${DEPENDFILE}
180 MD_SED=sed ${MDLIB_SED}
184 SUBST_DEPVARS+= SB TOP BACKING SRC SRCDIR BASE BASEDIR
185 .for v in ${SUBST_DEPVARS}
186 .if defined(${v}) && !empty(${v})
187 MD_SED+= -e 's,${$v},$${$v},'
191 .if (${MD_SED} == "sed")
195 # this will be done whenever make finishes successfully
196 .if ${MAKE_VERSION:U0:[1]:C/.*-//} < 20050530
200 # we do not want to trigger building .d's just use them if they exist
201 ${DEPENDFILE}: ${__dependsrcs:@d@${exists($d):?$d:}@}
203 -@${MD_SED} ${__depfiles} > ${DEPENDFILE}.new 2> /dev/null && \
204 test -s ${DEPENDFILE}.new && mv ${DEPENDFILE}.new ${DEPENDFILE}; \
205 ${RM} -f ${DEPENDFILE}.new
209 depend: beforedepend afterdepend _SUBDIRUSE
212 .if !target(beforedepend)
215 .if !target(afterdepend)