1 # Copyright (C) 1991, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
2 # This file is part of the GNU C Library.
4 # The GNU C Library is free software; you can redistribute it and/or
5 # modify it under the terms of the GNU Library General Public License as
6 # published by the Free Software Foundation; either version 2 of the
7 # License, or (at your option) any later version.
9 # The GNU C Library is distributed in the hope that it will be useful,
10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 # Library General Public License for more details.
14 # You should have received a copy of the GNU Library General Public
15 # License along with the GNU C Library; see the file COPYING.LIB. If
16 # not, write to the Free Software Foundation, Inc., 675 Mass Ave,
17 # Cambridge, MA 02139, USA.
20 # Common rules for making the GNU C library. This file is included
21 # by the top-level Makefile and by all subdirectory makefiles
25 This makefile requires GNU Make.
33 # If `sources' was defined by the parent makefile, undefine it so
34 # we will later get it from wildcard search in this directory.
35 ifneq "$(findstring env,$(origin sources))" ""
39 headers := $(headers) $(sysdep_headers)
42 PATH := this definition should take precedence over $(oPATH)
43 ifeq ($(PATH),$(oPATH))
44 You must not use the -e flag when building the GNU C library.
49 ifndef +included-Makeconfig
50 include $(..)Makeconfig
53 # `configure' writes a definition of `config-sysdirs' in `config.make'.
54 sysdirs = $(config-sysdirs)
56 +sysdir_pfx = $(common-objpfx)
58 export sysdirs := $(sysdirs)
60 +sysdep_dirs := $(addprefix $(sysdep_dir)/,$(sysdirs))
62 +sysdep_dirs := $(objdir) $(+sysdep_dirs)
65 # Add -I switches to get the right sysdep directories.
66 # `+includes' in Makeconfig references $(+sysdep-includes).
67 +sysdep-includes := $(addprefix -I,$(+sysdep_dirs))
69 # Include any system-specific makefiles.
71 # This is here so things in sysdep Makefiles can easily depend on foo.h as
72 # appropriate and not worry about where foo.h comes from, which may be
73 # system dependent and not known by that Makefile.
74 vpath %.h $(subst $(empty) ,:,$(strip $(common-objpfx) \
75 $(addprefix $(sysdep_dir)/,$(sysdirs)) \
78 ifeq ($(wildcard $(+sysdir_pfx)sysd-Makefile),)
79 # Don't do deps until this exists, because it might change the sources list.
83 # Some sysdep makefiles use this to distinguish being included here from
84 # being included individually by a subdir makefile (hurd/Makefile needs this).
87 ifndef avoid-generated
88 include $(+sysdir_pfx)sysd-Makefile
89 $(+sysdir_pfx)sysd-Makefile: $(+sysdir_pfx)config.make $(..)Makerules
91 (for dir in $(sysdirs); do \
92 file=sysdeps/$$dir/Makefile; \
93 if [ -f $(..)$$file ]; then \
94 echo include "\$$(..)$$file"; \
97 echo 'sysd-Makefile-done=t') > $@T
101 # Reorder before-compile so that mach things come first, and hurd things
102 # second, before all else. The mach and hurd subdirectories have many
103 # generated header files which the much of rest of the library depends on,
104 # so it is best to build them first (and mach before hurd, at that).
105 before-compile := $(filter $(common-objpfx)mach% $(common-objpfx)hurd%,\
107 $(filter-out $(common-objpfx)mach% $(common-objpfx)hurd%,\
110 # Remove existing files from `before-compile'. Things are added there when
111 # they must exist for dependency generation to work right, but once they
112 # exist there is no further need for every single file to depend on them,
113 # and those gratuitous dependencies result in many gratuitous
115 before-compile := $(filter-out $(wildcard $(before-compile)),$(before-compile))
117 # Don't let any before-compile file be an intermediate and get removed.
122 # Generate an ordered list of implicit rules which find the source files in
123 # each sysdep directory. The old method was to use vpath to search all the
124 # sysdep directories. However, that had the problem that a .S file in a
125 # later directory would be chosen over a .c file in an earlier directory,
126 # which does not preserve the desired sysdeps ordering behavior.
128 # When making the list of .d files to include, we can't know which ones
129 # have source in .s files, and thus do not in fact need a .d file.
130 # So we must define rules to make .d files for .s files.
131 define make-dummy-dep
132 $(addprefix ln $(objpfx)dummy.d ,$(filter-out $(wildcard $@),$@))
135 echo '# .s files cannot contain includes, so they need no deps.' > $@
137 # It matters that this set of rules, for compiling from sources in
138 # the current directory (the $srcdir/$subdir) come before the
139 # generated sysdep rules in included from sysd-rules below. When
140 # compiling in the source tree, generated sources go into the current
141 # directory, and those should be chosen before any sources in sysdeps.
142 $(objpfx)%.o: %.S $(before-compile); $(compile-command.S)
143 $(objpfx)%.so: %.S $(before-compile); $(compile-command.S)
144 $(objpfx)%.po: %.S $(before-compile); $(compile-command.S)
145 $(objpfx)%.go: %.S $(before-compile); $(compile-command.S)
146 $(objpfx)%.d: %.S $(before-compile); $(+make-deps)
147 $(objpfx)%.o: %.s $(before-compile); $(compile-command.s)
148 $(objpfx)%.so: %.s $(before-compile); $(compile-command.s)
149 $(objpfx)%.po: %.s $(before-compile); $(compile-command.s)
150 $(objpfx)%.go: %.s $(before-compile); $(compile-command.s)
151 $(objpfx)%.d: %.s $(objpfx)dummy.d; $(make-dummy-dep)
152 $(objpfx)%.o: %.c $(before-compile); $(compile-command.c)
153 $(objpfx)%.so: %.c $(before-compile); $(compile-command.c)
154 $(objpfx)%.po: %.c $(before-compile); $(compile-command.c)
155 $(objpfx)%.go: %.c $(before-compile); $(compile-command.c)
156 $(objpfx)%.d: %.c $(before-compile); $(+make-deps)
158 # Omit the objpfx rules when building in the source tree, because
159 # objpfx is empty and so these rules just override the ones above.
161 # Define first rules to find the source files in $(objpfx).
162 # Generated source files will end up there.
163 $(objpfx)%.o: $(objpfx)%.S $(before-compile); $(compile-command.S)
164 $(objpfx)%.so: $(objpfx)%.S $(before-compile); $(compile-command.S)
165 $(objpfx)%.po: $(objpfx)%.S $(before-compile); $(compile-command.S)
166 $(objpfx)%.go: $(objpfx)%.S $(before-compile); $(compile-command.S)
167 $(objpfx)%.d: $(objpfx)%.S $(before-compile); $(+make-deps)
168 $(objpfx)%.o: $(objpfx)%.s $(before-compile); $(compile-command.s)
169 $(objpfx)%.so: $(objpfx)%.s $(before-compile); $(compile-command.s)
170 $(objpfx)%.po: $(objpfx)%.s $(before-compile); $(compile-command.s)
171 $(objpfx)%.go: $(objpfx)%.s $(before-compile); $(compile-command.s)
172 $(objpfx)%.d: $(objpfx)%.s $(objpfx)dummy.d; $(make-dummy-dep)
173 $(objpfx)%.o: $(objpfx)%.c $(before-compile); $(compile-command.c)
174 $(objpfx)%.so: $(objpfx)%.c $(before-compile); $(compile-command.c)
175 $(objpfx)%.po: $(objpfx)%.c $(before-compile); $(compile-command.c)
176 $(objpfx)%.go: $(objpfx)%.c $(before-compile); $(compile-command.c)
177 $(objpfx)%.d: $(objpfx)%.c $(before-compile); $(+make-deps)
180 # System-dependent makefiles can put in `inhibit-sysdep-asm' wildcard
181 # patterns matching sysdep directories whose assembly source files should
183 ifdef inhibit-sysdep-asm
184 define open-check-inhibit-asm
185 case $$sysdir in $(subst $(empty) ,|,$(inhibit-sysdep-asm))) : ;; *)
187 close-check-inhibit-asm = ;; esac ;
190 # Don't include sysd-rules until sysd-Makefile is already there and has been
191 # included. It might define inhibit-sysdep-asm, which would affect the
192 # contents of sysd-rules.
193 ifdef sysd-Makefile-done
194 include $(+sysdir_pfx)sysd-rules
196 $(+sysdir_pfx)sysd-rules: $(+sysdir_pfx)config.make $(..)Makerules \
197 $(wildcard $(foreach dir,$(sysdirs),\
198 $(sysdep_dir)/$(dir)/Makefile))
200 (for sysdir in $(sysdirs); do \
201 dir="\$$(sysdep_dir)/$$sysdir"; \
202 for o in $(object-suffixes); do \
203 $(open-check-inhibit-asm) \
204 echo "\$$(objpfx)%$$o: $$dir/%.S \$$(before-compile); \
205 \$$(compile-command.S)"; \
206 echo "\$$(objpfx)%$$o: $$dir/%.s \$$(before-compile); \
207 \$$(compile-command.s)"; \
208 $(close-check-inhibit-asm) \
209 echo "\$$(objpfx)%$$o: $$dir/%.c \$$(before-compile); \
210 \$$(compile-command.c)"; \
212 $(open-check-inhibit-asm) \
213 echo "\$$(objpfx)%.d: $$dir/%.s \$$(objpfx)dummy.d; \
214 \$$(make-dummy-dep)"; \
215 echo "\$$(objpfx)%.d: $$dir/%.S \$$(before-compile); \
217 $(close-check-inhibit-asm) \
218 echo "\$$(objpfx)%.d: $$dir/%.c \$$(before-compile); \
223 ifndef compile-command.S
224 compile-command.S = $(compile.S) $(OUTPUT_OPTION)
226 ifndef compile-command.s
227 compile-command.s = $(COMPILE.s) $< $(OUTPUT_OPTION)
229 ifndef compile-command.c
230 compile-command.c = $(compile.c) $(OUTPUT_OPTION)
233 # GCC can grok options after the file name, and it looks nicer that way.
234 compile.S = $(CC) $< -c $(CPPFLAGS) -DASSEMBLER $(asm-CPPFLAGS)
235 compile.c = $(CC) $< -c $(CFLAGS) $(CPPFLAGS)
237 # We need this for the output to go in the right place. It will default to
238 # empty if make was configured to work with a cc that can't grok -c and -o
239 # together. You can't compile the C library with such a compiler.
240 OUTPUT_OPTION = -o $@
242 S-CPPFLAGS = $(asm-CPPFLAGS)
245 $(+mkdep) $< $(CPPFLAGS) $($(<:$*.%=%)-CPPFLAGS) | \
246 sed -e 's,$*\.o,$(foreach o,$(object-suffixes),$(@:.d=$o)) $@,' \
247 $(sed-remove-objpfx) > $(@:.d=.T)
251 sed-remove-objpfx = -e 's@ $(subst @,\@,$(objpfx))@ $$(objpfx)@g' \
252 -e 's@^$(subst @,\@,$(objpfx))@$$(objpfx)@g'
255 # Figure out the source filenames in this directory.
257 override sources := $(addsuffix .c,$(filter-out $(elided-routines),\
260 sysdep_routines := $(sysdep_routines)
262 # This is the list of all object files, gotten by
263 # replacing every ".c" in `sources' with a ".o".
264 override objects := $(addprefix $(objpfx),$(sources:.c=.o))
267 # This variable is used in ``include $(o-iterator)'' after defining
268 # $(o-iterator-doit) to produce some desired rule using $o for the object
269 # suffix, and setting $(object-suffixes-left) to $(object-suffixes); a copy
270 # is produced for each object suffix in use.
271 o-iterator = $(patsubst %,$(..)o-iterator.mk,$(object-suffixes))
273 # The makefile may define $(extra-libs) with `libfoo libbar'
274 # to build libfoo.a et al from the modules listed in $(libfoo-routines).
276 # extra-lib.mk is included once for each extra lib to define rules
277 # to build it, and to add its objects to the various variables.
278 # During its evaluation, $(lib) is set to the name of the library.
279 extra-libs-left := $(extra-libs)
280 include $(patsubst %,$(..)extra-lib.mk,$(extra-libs))
283 +depfiles := $(strip $(sources:.c=.d) \
284 $(patsubst %.o,%.d,$(filter %.o,$(extra-objs))) \
285 $(addsuffix .d,$(others) $(tests)))
286 +depfiles := $(addprefix $(objpfx),\
287 $(filter-out $(addsuffix .d,$(omit-deps)),\
290 $(objpfx)depend-$(subdir): Makefile
292 for file in $(+depfiles:$(objpfx)%=%); do \
293 echo "include \$$(objpfx)$$file"; \
301 # Include the generated dependencies of the sources in this directory.
302 include $(objpfx)depend-$(subdir)
305 # Maximize efficiency by minimizing the number of rules.
306 .SUFFIXES: # Clear the suffix list.
307 # Add the suffixes we use.
308 .SUFFIXES: .a $(object-suffixes) .S .s .c .h .d
310 # Generic rule for making directories.
312 # mkdir isn't smart enough to strip a trailing /.
315 # Make sure that object files are not removed
316 # when they are intermediates between sources and library members.
317 .PRECIOUS: $(addprefix $(objpfx)%,$(object-suffixes))
319 # Make sure that the parent library archive is never removed.
320 .PRECIOUS: $(foreach l,$(libtypes),$(patsubst %,$(common-objpfx)$l,c))
322 # Use the verbose option of ar and tar when not running silently.
323 ifeq "$(findstring s,$(MAKEFLAGS))" "" # if not -s
329 ARFLAGS := r$(verbose)
331 # This makes all the object files in the parent library archive.
333 .PHONY: lib libobjs lib-noranlib
334 lib: lib-noranlib $(foreach l,$(libtypes),$(patsubst %,$(common-objpfx)$l,c))
336 # Pattern rule for libraries: depend on the __.SYMDEF member updated by ranlib.
337 lib%.a: lib%.a(__.SYMDEF) ;
339 ifeq (yes,$(build-shared))
340 # Pattern rule to build a shared object from an archive of PIC objects.
341 # $(LDLIBS-%.so) may contain -l switches to generate run-time dependencies
342 # on other shared objects.
344 $(LINK.o) -shared -o $@ -Wl,--whole-archive $< \
345 -L$(firstword $(objdir) .) -L$(common-objpfx:%/=%) \
349 libobjs: $(foreach o,$(object-suffixes),\
350 $(common-objpfx)$(patsubst %,$(libtype$o),c)(\
351 $(notdir $(objects:.o=$o))))
352 lib-noranlib: libobjs $(addprefix $(objpfx),$(install-lib))
356 # Define a pattern rule that will match many targets libc.a(foo.%), for
357 # each foo.o in $(objects) (% will just happen always to match `o'). This is
358 # the only way to define a rule that updates many targets at once with one
359 # sequence of commands. We in fact define the pattern rule to match
360 # targets libc.a(foo.%), libc_pic.a(foo.%), etc, to avoid repeating the rule.
361 # Each match will only ever be called upon to make member objects of
362 # the appropriate type in each library (i.e. libc_pic.a(foo.so)).
363 $(foreach l,$(libtypes),\
364 $(common-objpfx)$(patsubst %,$l,c)($(notdir $(objects:.o=.%)))): \
365 $(objpfx)stamp.%-$(subdir) ;
367 # The pattern rule tells Make to remake $(objpfx)stamp.%-$(subdir) as
368 # the way to update all the foo.% object files in $(objects).
369 # Now we define a static pattern rule to update each
370 # $(objpfx)stamp.SUFFIX-$(subdir) timestamp file;
371 # these rules (one explicit rule is generated for each object suffix)
372 # will update the parent archive with
373 $(foreach o,$(object-suffixes),$(objpfx)stamp$o-$(subdir)): \
374 $(objpfx)stamp%-$(subdir): $(objects:.o=%)
375 $(patsubst %,cd %;,$(objdir)) \
376 $(AR) cru$(verbose) ${O%-lib} \
377 $(patsubst $(objpfx)%,%,$^)
379 O%-lib = $(filter ../,$(firstword $(objdir) ../))$(patsubst %,$(libtype$*),c)
383 # Rules to update the __.SYMDEF member with ranlib.
384 # To consolidate, each flavor library's __.SYMDEF member
385 # depends on the imaginary intermediate file `symdef.SUFFIX',
386 # where SUFFIX is that flavor's object suffix; then a pattern rule
387 # "remakes" symdef.% depending on all the libc.a(foo.%) files in $(objects).
388 $(common-objpfx)$(patsubst %,$(libtype.o),c)(__.SYMDEF): symdef.o
389 $(common-objpfx)$(patsubst %,$(libtype.so),c)(__.SYMDEF): symdef.so
390 $(common-objpfx)$(patsubst %,$(libtype.po),c)(__.SYMDEF): symdef.po
391 $(common-objpfx)$(patsubst %,$(libtype.go),c)(__.SYMDEF): symdef.go
392 symdef.%: $(foreach o,$(object-suffixes),\
393 $(common-objpfx)$(patsubst %,$(libtype$o),c)(\
394 $(patsubst $(objpfx)%.o,%.%,$(objects)))) \
395 $(filter subdir_lib,$(firstword $(subdir) subdir_lib))
396 # The last line above makes it also depend on subdir_lib for the parent.
397 $(RANLIB) $(common-objpfx)$(patsubst %,$(libtype.$*),c)
399 # This makes all the object files.
401 objects objs: $(foreach o,$(object-suffixes),$(objects:.o=$o)) \
402 $(addprefix $(objpfx),$(extra-objs))
404 # Canned sequence for building an extra library archive.
405 define build-extra-lib
406 $(patsubst %,cd %;,$(objdir)) \
407 $(AR) cru$(verbose) $(@:$(objpfx)%=%) \
408 $(patsubst $(objpfx)%,%,$^)
414 # $(install-lib) are installed from the object directory into $(libdir);
415 # files in $(install-lib) matching `lib%.a' are ranlib'd after installation
416 # unless they also appear in $(non-lib.a). $(install-data) are installed
417 # as they are into $(datadir). $(headers) are installed as they are in
418 # $(includedir). $(install-bin) and $(install-sbin) are installed from the
419 # object directory into $(bindir) and $(sbindir), respectively.
420 # $(install-others) are absolute path names of files to install; rules to
421 # install them are defined elsewhere.
423 # The simple library name to install libc.a under.
424 # This could be defined by a sysdep Makefile.
430 $(make-target-directory)
431 $(INSTALL_DATA) $< $@
434 # Make the target directory if it doesn't exist. Because of make's
435 # directory cache, this will produce the `mkdir' command when the directory
436 # already exists, if it didn't exist at the start of the `make' run. The
437 # `-' prefix ignores errors from mkdir, so there will just be some
438 # gratuitous but harmless `File exists' messages.
439 define make-target-directory
440 $(addprefix -mkdir ,$(filter-out $(wildcard $(@D:%/=%)),$(@D:%/=%)))
443 # Any directory (parent or subdir) that has any object files to build
444 # should install libc.a; this way "make install" in a subdir is guaranteed
445 # to install everything it changes.
447 installed-libcs := $(foreach o,$(object-suffixes),\
448 $(libdir)/$(patsubst %,$(libtype$o),\
449 $(libprefix)$(libc-name)))
450 install: $(installed-libcs)
451 # We avoid depending on lib-noranlib because that makes the parent make
452 # subdir_lib in all the subdirs, when the make install run they do will
453 # update the library anyway. Running ranlib after installing makes the
454 # __.SYMDEF time stamp up to date, which avoids messages from some linkers.
455 # Depending on subdir_install gets all the subdirs to update the library,
456 # and is optimal for `make install' at top level.
457 $(installed-libcs): $(libdir)/lib$(libprefix)%: libobjs subdir_install
458 $(make-target-directory)
459 $(INSTALL_DATA) $(common-objpfx)lib$(*:$(libc-name)%=c%) $@
463 install-lib.so := libc.so $(filter lib%.so,$(install-lib))
464 install-lib := $(filter-out lib%.so,$(install-lib))
465 ifeq (yes,$(build-shared))
466 install: $(foreach so,$(install-lib.so), \
467 $(libdir)/$(so:lib%=lib$(libprefix)%).$($(so)-version))
468 $(libdir)/lib$(libprefix)%.so: $(common-objpfx)lib%.so; $(do-install)
472 $(addprefix $(bindir)/,$(install-bin)): $(bindir)/%: $(objpfx)%
473 $(make-target-directory)
474 $(INSTALL_PROGRAM) $< $@
477 $(addprefix $(sbindir)/,$(install-sbin)): $(sbindir)/%: $(objpfx)%
478 $(make-target-directory)
479 $(INSTALL_PROGRAM) $< $@
482 install-lib.a := $(filter lib%.a,$(install-lib))
483 install-lib-non.a := $(filter-out lib%.a,$(install-lib))
484 ifdef install-lib-non.a
485 $(addprefix $(libdir)/$(libprefix),$(install-lib-non.a)): \
486 $(libdir)/$(libprefix)%: $(objpfx)%
490 $(install-lib.a:lib%.a=$(libdir)/lib$(libprefix)%.a): \
491 $(libdir)/lib$(libprefix)%.a: $(objpfx)lib%.a
493 $(patsubst %,$(RANLIB) $@,$(filter-out $(non-lib.a),$(<F)))
497 $(addprefix $(datadir)/,$(install-data)): $(datadir)/%: %;$(do-install)
499 headers := $(strip $(headers))
501 $(addprefix $(includedir)/,$(headers)): \
502 $(includedir)/%: %;$(do-install)
505 .PHONY: install-bin-nosubdir install-sbin-nosubdir install-lib-nosubdir \
506 install-data-nosubdir install-headers-nosubdir
507 install-bin-nosubdir: $(addprefix $(bindir)/,$(install-bin))
508 install-sbin-nosubdir: $(addprefix $(sbindir)/,$(install-sbin))
509 install-lib-nosubdir: $(addprefix $(libdir)/,\
510 $(patsubst lib%.a,lib$(libprefix)%.a,$(install-lib.a)) \
511 $(addprefix $(libprefix),$(install-lib-non.a)))
512 install-data-nosubdir: $(addprefix $(datadir)/,$(install-data))
513 install-headers-nosubdir: $(addprefix $(includedir)/,$(headers))
514 install-others-nosubdir: $(install-others)
516 # We need all the `-nosubdir' targets so that `install' in the parent
517 # doesn't depend on several things which each iterate over the subdirs.
518 # This rule makes `install-FOO' always use `install-FOO-nosubdir' as a
519 # subroutine. Then in the parent `install-FOO' also causes subdir makes.
520 install-%:: install-%-nosubdir ;
522 .PHONY: install install-no-libc.a-nosubdir
523 install-no-libc.a-nosubdir: install-headers-nosubdir install-data-nosubdir\
524 install-bin-nosubdir install-lib-nosubdir \
525 install-others-nosubdir install-sbin-nosubdir
526 install: install-no-libc.a-nosubdir
528 # Command to compile $< in $(objdir) using the native libraries.
529 define native-compile
530 cwd=`pwd`; cd $(@D); $(BUILD_CC) $(BUILD_CFLAGS) \
531 $(addprefix $$cwd/,$^) -o $(@F)
534 # Command to compile $< in $(common-objdir) using the native libraries.
535 define common-objdir-compile
536 cd $(@D); $(BUILD_CC) $(BUILD_CFLAGS) $(<:$(common-objpfx)%=%) -o $(@F)
539 # We always want to use configuration definitions.
540 BUILD_CFLAGS = -include $(common-objpfx)config.h
542 # Support the GNU standard name for this target.
547 TAGS: distinfo $(..)MakeTAGS
548 $(MAKE) $(addprefix -f ,$^)
555 # Common cleaning targets.
557 .PHONY: common-mostlyclean common-clean mostlyclean clean
559 mostlyclean: common-mostlyclean
561 # Remove the object files.
563 -rm -f $(addprefix $(objpfx),$(tests) $(others) \
564 $(addsuffix .o,$(tests) $(others)) \
565 $(addsuffix .out,$(tests)))
566 -rm -f $(addprefix $(objpfx),$(extra-objs) $(install-lib))
567 -rm -f core $(objpfx)stub-$(subdir)
570 $(foreach o,$(object-suffixes),
571 -rm -f $(addprefix $(objpfx),stamp$o-$(subdir)) $(objects:.o=$o))
574 # Also remove the dependencies and generated source files.
575 common-clean: common-mostlyclean
576 -rm -f $(objpfx)depend-$(subdir) $(+depfiles)
577 -rm -f $(addprefix $(objpfx),$(generated))
579 # Produce a file `stub-$(subdir)' which contains `#define __stub_FUNCTION'
580 # for each function which is a stub. We grovel over all the .d files
581 # looking for references to source files in sysdeps/stub. Then we grovel
582 # over each referenced source file to see what stub function it defines.
584 .PHONY: stubs # The parent Makefile calls this target.
585 stubs: $(common-objpfx)stub-$(subdir)
586 s = $(sysdep_dir)/stub
587 $(common-objpfx)stub-$(subdir): $(+depfiles)
588 # Use /dev/null since `...` might expand to empty.
589 s=`cd $s; /bin/pwd`; \
590 $(patsubst %,cd %;,$(objdir)) \
591 sed -n 's/^stub_warning *(\([^)]*\).*$$/#define __stub_\1/p' \
592 `sed -n 's@^.*$s/\([a-z0-9_-]*\.c\).*$$@'"$$s"/'\1@p' \
593 $(patsubst $(objpfx)%,%,$^) /dev/null` \
597 # Make the distribution tar file.
600 dist: distinfo $(..)Make-dist
601 $(MAKE) -f $< -f $(word 2,$^) $(Make-dist-args)
605 # We used to simply export all these variables, but that frequently made the
606 # environment get too large. Instead, we write all the information into
607 # a generated makefile fragment `distinfo', and then include it with -f in
608 # the sub-make that makes the distribution (above).
609 distinfo: Makefile $(..)Makerules
615 $(foreach var,subdir sources elided-routines headers distribute \
616 dont_distribute generated others tests,
617 echo >> $@.new '$(var) := $($(var))')
618 echo >> $@.new 'sources := $$(sources) $$(addsuffix .c,$$(elided-routines))'
621 ifneq (,$(strip $(gpl2lgpl)))
622 ifneq (,$(wildcard $(..)gpl2lgpl.sed))
623 # Snarf from the master source and frob the copying notice.
624 $(gpl2lgpl): %: $(..)gpl2lgpl.sed /home/gd/gnu/lib/%
626 # So I don't edit them by mistake.
629 test -d CVS && cvs commit -m'Updated from $^' $@