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 += $(inst_includedir)/gnu/lib-names.h
80 ifeq ($(versioning),yes)
81 lib-noranlib: lib-mapfiles
86 ifeq ($(build-programs),yes)
87 others: $(addprefix $(objpfx),$(install-bin))
90 # Install from subdirectories too.
91 install: subdir_install
93 # Make sure that the dynamic linker is installed before libc.
94 $(inst_slibdir)/libc-$(version).so: elf/ldso_install
96 .PHONY: elf/ldso_install
98 $(MAKE) -C $(@D) $(@F)
100 # Create links for shared libraries using the `ldconfig' program is possible.
101 # Ignore the error if we cannot update /etc/ld.so.cache.
102 ifeq (no,$(cross-compiling))
103 ifeq (yes,$(build-shared))
105 -test ! -x $(common-objpfx)elf/ldconfig || \
106 $(common-objpfx)elf/ldconfig -d $(inst_slibdir) $(inst_libdir)
108 ifeq (/usr,$(prefix))
109 ifeq (,$(install_root))
110 CC="$(CC)" $(PERL) scripts/test-installation.pl $(common-objpfx)
117 # Build subdirectory lib objects.
118 lib-noranlib: subdir_lib
120 ifeq (yes,$(build-shared))
121 # Build the shared object from the PIC object library.
122 lib: $(common-objpfx)libc.so
125 # Makerules creates a file `stubs' in each subdirectory, which
126 # contains `#define __stub_FUNCTION' for each function defined in that
127 # directory which is a stub.
128 # Here we paste all of these together into <gnu/stubs.h>.
130 subdir-stubs := $(foreach dir,$(subdirs),$(common-objpfx)$(dir)/stubs)
132 # Since stubs.h is never needed when building the library, we simplify the
133 # hairy installation process by producing it in place only as the last part
134 # of the top-level `make install'. It depends on subdir_install, which
135 # iterates over all the subdirs; subdir_install in each subdir depends on
136 # the subdir's stubs file. Having more direct dependencies would result in
137 # extra iterations over the list for subdirs and many recursive makes.
138 $(inst_includedir)/gnu/stubs.h: subdir_install
139 $(make-target-directory)
140 @rm -f $(objpfx)stubs.h
141 (echo '/* This file is automatically generated.';\
142 echo ' It defines a symbol `__stub_FUNCTION'\'' for each function';\
143 echo ' in the C library which is a stub, meaning it will fail';\
144 echo ' every time called, usually setting errno to ENOSYS. */';\
145 sort $(subdir-stubs)) > $(objpfx)stubs.h
146 if test -r $@ && cmp -s $(objpfx)stubs.h $@; \
147 then echo 'stubs.h unchanged'; \
148 else $(INSTALL_DATA) $(objpfx)stubs.h $@; fi
149 rm -f $(objpfx)stubs.h
151 ifeq (yes,$(build-shared))
153 $(inst_includedir)/gnu/lib-names.h: $(common-objpfx)gnu/lib-names.h $(+force)
154 $(make-target-directory)
155 if test -r $@ && cmp -s $< $@; \
156 then echo 'gnu/lib-names.h unchanged'; \
157 else $(INSTALL_DATA) $< $@; fi
160 # The `glibcbug' script contains the version number and it shall be rebuild
161 # whenever this changes or the `glibcbug.in' file.
162 $(objpfx)glibcbug: $(common-objpfx)config.status glibcbug.in
163 cd $(<D) && CONFIG_FILES=$(@F) CONFIG_HEADERS= $(SHELL) $(<F)
165 # This makes the Info or DVI file of the documentation from the Texinfo source.
168 $(MAKE) $(PARALLELMFLAGS) -C manual $@
170 # This makes all the subdirectory targets.
172 # For each target, make it depend on DIR/target for each subdirectory DIR.
173 $(+subdir_targets): %: $(addsuffix /%,$(subdirs))
175 # Compute a list of all those targets.
176 all-subdirs-targets := $(foreach dir,$(subdirs),\
177 $(addprefix $(dir)/,$(+subdir_targets)))
179 # The action for each of those is to cd into the directory and make the
181 $(all-subdirs-targets):
182 $(MAKE) $(PARALLELMFLAGS) -C $(@D) $(@F)
184 .PHONY: $(+subdir_targets) $(all-subdirs-targets)
186 # Targets to clean things up to various degrees.
188 .PHONY: clean realclean distclean distclean-1 parent-clean parent-mostlyclean
190 # Subroutines of all cleaning targets.
191 parent-mostlyclean: common-mostlyclean # common-mostlyclean is in Makerules.
192 -rm -f $(foreach o,$(object-suffixes-for-libc),\
193 $(common-objpfx)$(patsubst %,$(libtype$o),c)) \
194 $(addprefix $(objpfx),$(install-lib))
195 parent-clean: parent-mostlyclean common-clean
197 postclean = $(addprefix $(common-objpfx),$(postclean-generated)) \
198 $(addprefix $(objpfx),sysd-Makefile sysd-dirs sysd-rules) \
199 $(objpfx)soversions.mk
202 # This is done this way rather than having `subdir_clean' be a
203 # dependency of this target so that libc.a will be removed before the
204 # subdirectories are dealt with and so they won't try to remove object
205 # files from it when it's going to be removed anyway.
206 @$(MAKE) subdir_clean no_deps=t
207 mostlyclean: parent-mostlyclean
208 @$(MAKE) subdir_mostlyclean no_deps=t
211 # The realclean target is just like distclean for the parent, but we want
212 # the subdirs to know the difference in case they care.
213 realclean distclean: parent-clean
214 # This is done this way rather than having `subdir_distclean' be a
215 # dependency of this target so that libc.a will be removed before the
216 # subdirectories are dealt with and so they won't try to remove object
217 # files from it when it's going to be removed anyway.
218 @$(MAKE) distclean-1 no_deps=t distclean-1=$@ avoid-generated=yes \
219 sysdep-subdirs="$(sysdep-subdirs)"
222 # Subroutine of distclean and realclean.
223 distclean-1: subdir_$(distclean-1)
224 -rm -f $(config-generated)
225 -rm -f $(addprefix $(objpfx),config.status config.cache config.log)
226 -rm -f $(addprefix $(objpfx),config.make config-name.h config.h)
227 -rm -f $(addprefix $(objpfx),glibcbug)
229 -rm -f $(objpfx)Makefile
231 -rm -f $(sysdep-$(distclean-1))
234 echo_subdirs:;@echo '$(subdirs)'
236 .PHONY: echo-distinfo parent_echo-distinfo
237 echo-distinfo: parent_echo-distinfo subdir_echo-distinfo
238 parent_echo-distinfo:
239 @echo $(addprefix +header+,$(headers)) \
240 $(addprefix +nodist+,$(generated))
243 # Make the distribution tarfile.
245 distribute := README README.libm INSTALL FAQ FAQ.in NOTES NEWS BUGS \
246 PROJECTS COPYING.LIB COPYING ChangeLog ChangeLog.[0-9] \
247 Makefile Makeconfig Makerules Rules Make-dist MakeTAGS \
248 extra-lib.mk o-iterator.mk configure configure.in \
249 aclocal.m4 config.h.in config.make.in config-name.in \
250 Makefile.in sysdep.h set-hooks.h libc-symbols.h \
251 version.h shlib-versions rpm/Makefile rpm/template \
252 rpm/rpmrc glibcbug.in abi-tags stub-tag.h \
253 test-skeleton.c include/des.h Versions.def versions.awk \
254 $(addprefix scripts/, \
255 rellns-sh config.sub config.guess \
256 mkinstalldirs move-if-change install-sh \
257 test-installation.pl gen-FAQ.pl)
259 distribute := $(strip $(distribute))
260 generated := $(generated) stubs.h
262 README: README.template version.h ; # Make-dist should update README.
266 makeinfo --no-validate --no-warn --no-headers $< -o $@
269 INSTALL: manual/install.texi; $(format-me)
270 NOTES: manual/creature.texi; $(format-me)
271 manual/dir-add.texi manual/dir-add.info: FORCE
272 $(MAKE) $(PARALLELMFLAGS) -C $(@D) $(@F)
273 FAQ: scripts/gen-FAQ.pl FAQ.in
274 $(PERL) $^ > $@.new && rm -f $@ && mv $@.new $@ && chmod a-w $@
275 ifeq ($(with-cvs),yes)
276 test ! -d CVS || cvs $(CVSOPTS) commit -m'Regenerated: $(PERL) $^' $@
280 rpm/%: subdir_distinfo
281 $(MAKE) $(PARALLELMFLAGS) -C $(@D) $(@F)
284 $(MAKE) $(PARALLELMFLAGS) -C $(@D) $(@F)
286 # This is a special goal for people making binary distributions. Normally
287 # everybody uses the DES based crypt library but for the distribution we
288 # need the only-MD5 based one as well.
289 md5-crypt/libmd5crypt:
290 $(MAKE) $(PARALLELMFLAGS) -C $(@D) $(@F)
292 # glibc 2.0 contains some header files which aren't used with glibc 2.1
294 # These rules should remove those headers
295 ifeq (,$(install_root))
296 ifeq ($(old-glibc-headers),yes)
297 install: remove-old-headers
301 headers2_0 := __math.h bytesex.h confname.h direntry.h elfclass.h \
302 errnos.h fcntlbits.h huge_val.h ioctl-types.h \
303 ioctls.h iovec.h jmp_buf.h libc-lock.h local_lim.h \
304 mathcalls.h mpool.h nan.h ndbm.h posix1_lim.h \
305 posix2_lim.h posix_opt.h resourcebits.h schedbits.h \
306 selectbits.h semaphorebits.h sigaction.h sigcontext.h \
307 signum.h sigset.h sockaddrcom.h socketbits.h stab.def \
308 statbuf.h statfsbuf.h stdio-lock.h stdio_lim.h \
309 syscall-list.h termbits.h timebits.h ustatbits.h \
310 utmpbits.h utsnamelen.h waitflags.h waitstatus.h \
311 xopen_lim.h gnu/types.h sys/ipc_buf.h \
312 sys/kernel_termios.h sys/msq_buf.h sys/sem_buf.h \
313 sys/shm_buf.h sys/socketcall.h
315 .PHONY: remove-old-headers
317 rm -f $(addprefix $(inst_includedir)/, $(headers2_0))
319 # Generate version maps.
320 ifeq ($(versioning),yes)
321 ifndef avoid-generated
322 $(common-objpfx)sysd-versions: Versions.def
323 (echo define vers-libs; \
324 sed -n 's/\(lib[a-zA-Z0-9_][a-zA-Z0-9_]*\) {/$$(common-objpfx)\1%map/p' $<; \
327 -include $(common-objpfx)sysd-versions
328 vers-libs := $(subst $(\n), ,$(vers-libs))
330 $(vers-libs): versions.awk \
331 $(wildcard $(subdirs:%=%/Versions)) \
332 $(wildcard $(+sysdep_dirs:%=%/Versions))
333 $(AWK) -v 'buildroot=$(common-objpfx)' -f $^
335 lib-mapfiles: $(common-objpfx)sysd-versions $(subst %,.,$(vers-libs))