1 # Copyright (C) 1991, 92, 93, 94, 95, 96, 97, 98 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 not,
16 # write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 # Boston, MA 02111-1307, USA.
20 # Master Makefile for the GNU C library
23 This makefile requires GNU Make.
29 # This is the default target; it makes everything except the tests.
33 ifeq ($(with-cvs),yes)
36 autoconf $(ACFLAGS) $< > $@.new
39 test ! -d CVS || cvs $(CVSOPTS) commit -m'Regenerated: autoconf $(ACFLAGS) $<' $@
44 autoconf $(ACFLAGS) $< > $@.new
50 configure: configure.in aclocal.m4; $(autoconf-it)
51 %/configure: %/configure.in aclocal.m4; $(autoconf-it)
53 # These are the targets that are made by making them in each subdirectory.
54 +subdir_targets := subdir_lib objects objs others subdir_mostlyclean \
55 subdir_clean subdir_distclean subdir_realclean \
56 tests subdir_lint.out \
58 subdir_echo-headers subdir_echo-distinfo \
60 $(addprefix install-, no-libc.a bin lib data headers others)
62 headers := errno.h sys/errno.h bits/errno.h limits.h values.h \
63 features.h gnu-versions.h bits/libc-lock.h bits/xopen_lim.h \
66 echo-headers: subdir_echo-headers
68 # The headers are in the include directory.
70 vpath %.h $(subdir-dirs)
73 install-others = $(inst_includedir)/gnu/stubs.h
74 install-bin = glibcbug
76 ifeq (yes,$(build-shared))
77 install-others += $(inst_includedir)/gnu/lib-names.h
82 # Install from subdirectories too.
83 install: subdir_install
85 # Make sure that the dynamic linker is installed before libc.
86 $(inst_slibdir)/libc-$(version).so: elf/ldso_install
88 .PHONY: elf/ldso_install
90 $(MAKE) -C $(@D) $(@F)
92 # Create links for shared libraries using the `ldconfig' program is possible.
93 # Ignore the error if we cannot update /etc/ld.so.cache.
94 ifeq (no,$(cross-compiling))
95 ifeq (yes,$(build-shared))
97 -test ! -x $(common-objpfx)elf/ldconfig || \
98 $(common-objpfx)elf/ldconfig -d $(inst_slibdir) $(inst_libdir)
100 ifeq (/usr,$(prefix))
101 ifeq (,$(install_root))
102 CC="$(CC)" $(PERL) test-installation.pl $(common-objpfx)
109 # Build subdirectory lib objects.
110 lib-noranlib: subdir_lib
112 ifeq (yes,$(build-shared))
113 # Build the shared object from the PIC object library.
114 lib: $(common-objpfx)libc.so
117 # Makerules creates a file `stubs' in each subdirectory, which
118 # contains `#define __stub_FUNCTION' for each function defined in that
119 # directory which is a stub.
120 # Here we paste all of these together into <gnu/stubs.h>.
122 subdir-stubs := $(foreach dir,$(subdirs),$(common-objpfx)$(dir)/stubs)
124 # Since stubs.h is never needed when building the library, we simplify the
125 # hairy installation process by producing it in place only as the last part
126 # of the top-level `make install'. It depends on subdir_install, which
127 # iterates over all the subdirs; subdir_install in each subdir depends on
128 # the subdir's stubs file. Having more direct dependencies would result in
129 # extra iterations over the list for subdirs and many recursive makes.
130 $(inst_includedir)/gnu/stubs.h: subdir_install
131 $(make-target-directory)
132 @rm -f $(objpfx)stubs.h
133 (echo '/* This file is automatically generated.';\
134 echo ' It defines a symbol `__stub_FUNCTION'\'' for each function';\
135 echo ' in the C library which is a stub, meaning it will fail';\
136 echo ' every time called, usually setting errno to ENOSYS. */';\
137 sort $(subdir-stubs)) > $(objpfx)stubs.h
138 if test -r $@ && cmp -s $(objpfx)stubs.h $@; \
139 then echo 'stubs.h unchanged'; \
140 else $(INSTALL_DATA) $(objpfx)stubs.h $@; fi
141 rm -f $(objpfx)stubs.h
143 ifeq (yes,$(build-shared))
145 $(inst_includedir)/gnu/lib-names.h: $(common-objpfx)gnu/lib-names.h $(+force)
146 $(make-target-directory)
147 if test -r $@ && cmp -s $< $@; \
148 then echo 'gnu/lib-names.h unchanged'; \
149 else $(INSTALL_DATA) $< $@; fi
152 # The `glibcbug' script contains the version number and it shall be rebuild
153 # whenever this changes or the `glibcbug.in' file.
154 $(objpfx)glibcbug: $(common-objpfx)config.status glibcbug.in
155 cd $(<D) && CONFIG_FILES=$(@F) CONFIG_HEADERS= $(SHELL) $(<F)
157 # This makes the Info or DVI file of the documentation from the Texinfo source.
160 $(MAKE) $(PARALLELMFLAGS) -C manual $@
162 # This makes all the subdirectory targets.
164 # For each target, make it depend on DIR/target for each subdirectory DIR.
165 $(+subdir_targets): %: $(addsuffix /%,$(subdirs))
167 # Compute a list of all those targets.
168 all-subdirs-targets := $(foreach dir,$(subdirs),\
169 $(addprefix $(dir)/,$(+subdir_targets)))
171 # The action for each of those is to cd into the directory and make the
173 $(all-subdirs-targets):
174 $(MAKE) $(PARALLELMFLAGS) -C $(@D) $(@F)
176 .PHONY: $(+subdir_targets) $(all-subdirs-targets)
178 # Targets to clean things up to various degrees.
180 .PHONY: clean realclean distclean distclean-1 parent-clean parent-mostlyclean
182 # Subroutines of all cleaning targets.
183 parent-mostlyclean: common-mostlyclean # common-mostlyclean is in Makerules.
184 -rm -f $(foreach o,$(object-suffixes-for-libc),\
185 $(common-objpfx)$(patsubst %,$(libtype$o),c)) \
186 $(addprefix $(objpfx),$(install-lib))
187 parent-clean: parent-mostlyclean common-clean
189 postclean = $(addprefix $(common-objpfx),$(postclean-generated)) \
190 $(addprefix $(objpfx),sysd-Makefile sysd-dirs sysd-rules) \
191 $(objpfx)soversions.mk
194 # This is done this way rather than having `subdir_clean' be a
195 # dependency of this target so that libc.a will be removed before the
196 # subdirectories are dealt with and so they won't try to remove object
197 # files from it when it's going to be removed anyway.
198 @$(MAKE) subdir_clean no_deps=t
199 mostlyclean: parent-mostlyclean
200 @$(MAKE) subdir_mostlyclean no_deps=t
203 # The realclean target is just like distclean for the parent, but we want
204 # the subdirs to know the difference in case they care.
205 realclean distclean: parent-clean
206 # This is done this way rather than having `subdir_distclean' be a
207 # dependency of this target so that libc.a will be removed before the
208 # subdirectories are dealt with and so they won't try to remove object
209 # files from it when it's going to be removed anyway.
210 @$(MAKE) distclean-1 no_deps=t distclean-1=$@ avoid-generated=yes \
211 sysdep-subdirs="$(sysdep-subdirs)"
214 # Subroutine of distclean and realclean.
215 distclean-1: subdir_$(distclean-1)
216 -rm -f $(config-generated)
217 -rm -f $(addprefix $(objpfx),config.status config.cache config.log)
218 -rm -f $(addprefix $(objpfx),config.make config-name.h config.h)
219 -rm -f $(addprefix $(objpfx),glibcbug)
221 -rm -f $(objpfx)Makefile
223 -rm -f $(sysdep-$(distclean-1))
226 echo_subdirs:;@echo '$(subdirs)'
228 .PHONY: echo-distinfo parent_echo-distinfo
229 echo-distinfo: parent_echo-distinfo subdir_echo-distinfo
230 parent_echo-distinfo:
231 @echo $(addprefix +header+,$(headers)) \
232 $(addprefix +nodist+,$(generated))
235 # Make the distribution tarfile.
237 distribute := README README.libm INSTALL FAQ NOTES NEWS PROJECTS BUGS \
238 COPYING.LIB COPYING ChangeLog ChangeLog.[0-9] \
239 Makefile Makeconfig Makerules Rules Make-dist MakeTAGS \
240 extra-lib.mk o-iterator.mk autolock.sh rellns-sh \
241 libc.map mkinstalldirs move-if-change install-sh \
242 configure configure.in aclocal.m4 config.sub config.guess\
243 config.h.in config.make.in config-name.in Makefile.in \
244 sysdep.h set-hooks.h libc-symbols.h version.h shlib-versions \
245 rpm/Makefile rpm/template rpm/rpmrc glibcbug.in abi-tags \
246 stub-tag.h test-installation.pl test-skeleton.c \
249 distribute := $(strip $(distribute))
250 generated := $(generated) stubs.h
252 README: README.template version.h ; # Make-dist should update README.
256 makeinfo --no-validate --no-warn --no-headers $< -o $@
259 INSTALL: manual/install.texi; $(format-me)
260 NOTES: manual/creature.texi; $(format-me)
261 manual/dir-add.texi manual/dir-add.info: FORCE
262 $(MAKE) $(PARALLELMFLAGS) -C $(@D) $(@F)
263 FAQ: gen-FAQ.pl FAQ.in
264 $(PERL) $^ > $@.new && rm -f $@ && mv $@.new $@ && chmod a-w $@
265 ifeq ($(with-cvs),yes)
266 test ! -d CVS || cvs $(CVSOPTS) commit -m'Regenerated: $(PERL) $^' $@
270 rpm/%: subdir_distinfo
271 $(MAKE) $(PARALLELMFLAGS) -C $(@D) subdirs='$(subdirs)' $(@F)
274 $(MAKE) $(PARALLELMFLAGS) -C $(@D) $(@F)
276 # This is a special goal for people making binary distributions. Normally
277 # everybody uses the DES based crypt library but for the distribution we
278 # need the only-MD5 based one as well.
279 md5-crypt/libmd5crypt:
280 $(MAKE) $(PARALLELMFLAGS) -C $(@D) $(@F)