Makefile

   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.
   3
   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.
   8
   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.
  13
  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.
  18
  19 #
  20 #       Master Makefile for the GNU C library
  21 #
  22 ifneq (,)
  23 This makefile requires GNU Make.
  24 endif
  25
  26 include Makeconfig
  27
  28
  29 # This is the default target; it makes everything except the tests.
  30 .PHONY: all
  31 all: lib others
  32 \f
  33 ifeq ($(with-cvs),yes)
  34 define autoconf-it
  35 @-rm -f $@.new
  36 autoconf $(ACFLAGS) $< > $@.new
  37 chmod a-w,a+x $@.new
  38 mv -f $@.new $@
  39 test ! -d CVS || cvs $(CVSOPTS) commit -m'Regenerated: autoconf $(ACFLAGS) $<' $@
  40 endef
  41 else
  42 define autoconf-it
  43 @-rm -f $@.new
  44 autoconf $(ACFLAGS) $< > $@.new
  45 chmod a-w,a+x $@.new
  46 mv -f $@.new $@
  47 endef
  48 endif
  49
  50 configure: configure.in aclocal.m4; $(autoconf-it)
  51 %/configure: %/configure.in aclocal.m4; $(autoconf-it)
  52
  53 # All initialization source files.
  54 +subdir_inits   := $(wildcard $(foreach dir,$(subdirs),$(dir)/init-$(dir).c))
  55 # All subdirectories containing initialization source files.
  56 +init_subdirs   := $(patsubst %/,%,$(dir $(+subdir_inits)))
  57
  58
  59 # These are the targets that are made by making them in each subdirectory.
  60 +subdir_targets := subdir_lib objects objs others subdir_mostlyclean    \
  61                    subdir_clean subdir_distclean subdir_realclean       \
  62                    tests subdir_lint.out                                \
  63                    subdir_distinfo                                      \
  64                    subdir_echo-headers subdir_echo-distinfo             \
  65                    subdir_install                                       \
  66                    $(addprefix install-, no-libc.a bin lib data headers others)
  67 \f
  68 headers := errno.h sys/errno.h bits/errno.h limits.h values.h   \
  69            features.h gnu-versions.h bits/libc-lock.h bits/xopen_lim.h  \
  70            gnu/libc-version.h
  71 aux      = sysdep $(libc-init) version
  72 before-compile += $(objpfx)version-info.h
  73
  74 echo-headers: subdir_echo-headers
  75
  76 # The headers are in the include directory.
  77 subdir-dirs = include
  78 vpath %.h $(subdir-dirs)
  79
  80 # What to install.
  81 install-others = $(inst_includedir)/gnu/stubs.h
  82 install-bin = glibcbug
  83
  84 ifeq (yes,$(build-shared))
  85 install-others += $(inst_includedir)/gnu/lib-names.h
  86 endif
  87
  88 ifeq (yes,$(gnu-ld))
  89 libc-init = set-init
  90 else
  91 libc-init = munch-init
  92 $(objpfx)munch-init.c: munch.awk munch-tmpl.c $(+subdir_inits)
  93         $(AWK) -f $< subdirs='$(+init_subdirs)' $(word 2,$^) > $@-t
  94         mv -f $@-t $@
  95 generated := $(generated) munch-init.c
  96 endif
  97
  98
  99 include Makerules
 100
 101 # Install from subdirectories too.
 102 install: subdir_install
 103
 104 # Make sure that the dynamic linker is installed before libc.
 105 $(inst_slibdir)/libc-$(version).so: elf/ldso_install
 106
 107 .PHONY: elf/ldso_install
 108 elf/ldso_install:
 109         $(MAKE) -C $(@D) $(@F)
 110
 111 # Create links for shared libraries using the `ldconfig' program is possible.
 112 # Ignore the error if we cannot update /etc/ld.so.cache.
 113 ifeq (no,$(cross-compiling))
 114 ifeq (yes,$(build-shared))
 115 install:
 116         -test ! -x $(common-objpfx)elf/ldconfig || \
 117           $(common-objpfx)elf/ldconfig -d $(inst_slibdir) $(inst_libdir)
 118 ifneq (no,$(PERL))
 119 ifeq (/usr,$(prefix))
 120 ifeq (,$(install_root))
 121         CC="$(CC)" $(PERL) test-installation.pl $(common-objpfx)
 122 endif
 123 endif
 124 endif
 125 endif
 126 endif
 127
 128 # Build subdirectory lib objects.
 129 lib-noranlib: subdir_lib
 130
 131 ifeq (yes,$(build-shared))
 132 # Build the shared object from the PIC object library.
 133 lib: $(common-objpfx)libc.so
 134 endif
 135 \f
 136 all-Banner-files = $(wildcard $(addsuffix /Banner, $(subdirs)))
 137 $(objpfx)version-info.h: $(+sysdir_pfx)config.make $(all-Banner-files)
 138         (case $(config-os) in \
 139            linux*) version=`(echo -e "#include <linux/version.h>\nUTS_RELEASE"\
 140                              | $(CC) -E -P - | \
 141                              sed -e 's/"\([^"]*\)".*/\1/p' -e d) 2>/dev/null`;\
 142                    if [ -z "$$version" ]; then \
 143                      if [ -r /proc/version ]; then \
 144                        version=`sed 's/.*version \([^ ]*\) .*/>>\1<</' \
 145                                 < /proc/version`; \
 146                      else \
 147                        version=`uname -r`; \
 148                      fi; \
 149                    fi; \
 150                    echo -n "\"Compiled on a Linux $$version system "; \
 151                    echo "on `date +%Y-%m-%d`.\\n\"" ;; \
 152            *) ;; \
 153          esac; \
 154          files="$(all-Banner-files)";                           \
 155          if test -n "$$files"; then                             \
 156            echo "\"Available extensions:";                      \
 157            sed -e '/^#/d' -e 's/^[[:space:]]*/  /' $$files;     \
 158            echo "\"";                                           \
 159          fi) > $@T
 160         mv -f $@T $@
 161
 162 version.c-objects := $(addprefix $(objpfx)version,$(object-suffixes))
 163 $(version.c-objects): $(objpfx)version-info.h
 164 \f
 165 # Makerules creates a file `stubs' in each subdirectory, which
 166 # contains `#define __stub_FUNCTION' for each function defined in that
 167 # directory which is a stub.
 168 # Here we paste all of these together into <gnu/stubs.h>.
 169
 170 subdir-stubs := $(foreach dir,$(subdirs),$(common-objpfx)$(dir)/stubs)
 171
 172 # Since stubs.h is never needed when building the library, we simplify the
 173 # hairy installation process by producing it in place only as the last part
 174 # of the top-level `make install'.  It depends on subdir_install, which
 175 # iterates over all the subdirs; subdir_install in each subdir depends on
 176 # the subdir's stubs file.  Having more direct dependencies would result in
 177 # extra iterations over the list for subdirs and many recursive makes.
 178 $(inst_includedir)/gnu/stubs.h: subdir_install
 179         $(make-target-directory)
 180         @rm -f $(objpfx)stubs.h
 181         (echo '/* This file is automatically generated.';\
 182          echo '   It defines a symbol `__stub_FUNCTION'\'' for each function';\
 183          echo '   in the C library which is a stub, meaning it will fail';\
 184          echo '   every time called, usually setting errno to ENOSYS.  */';\
 185          sort $(subdir-stubs)) > $(objpfx)stubs.h
 186         if test -r $@ && cmp -s $(objpfx)stubs.h $@; \
 187         then echo 'stubs.h unchanged'; \
 188         else $(INSTALL_DATA) $(objpfx)stubs.h $@; fi
 189         rm -f $(objpfx)stubs.h
 190 \f
 191 ifeq (yes,$(build-shared))
 192
 193 $(inst_includedir)/gnu/lib-names.h: $(common-objpfx)gnu/lib-names.h $(+force)
 194         $(make-target-directory)
 195         if test -r $@ && cmp -s $< $@; \
 196         then echo 'gnu/lib-names.h unchanged'; \
 197         else $(INSTALL_DATA) $< $@; fi
 198 endif
 199 \f
 200 # The `glibcbug' script contains the version number and it shall be rebuild
 201 # whenever this changes or the `glibcbug.in' file.
 202 $(objpfx)glibcbug: $(common-objpfx)config.status glibcbug.in
 203         cd $(<D) && CONFIG_FILES=$(@F) CONFIG_HEADERS= $(SHELL) $(<F)
 204 \f
 205 # This makes the Info or DVI file of the documentation from the Texinfo source.
 206 .PHONY: info dvi
 207 info dvi:
 208         $(MAKE) $(PARALLELMFLAGS) -C manual $@
 209 \f
 210 # This makes all the subdirectory targets.
 211
 212 # For each target, make it depend on DIR/target for each subdirectory DIR.
 213 $(+subdir_targets): %: $(addsuffix /%,$(subdirs))
 214
 215 # Compute a list of all those targets.
 216 all-subdirs-targets := $(foreach dir,$(subdirs),\
 217                                  $(addprefix $(dir)/,$(+subdir_targets)))
 218
 219 # The action for each of those is to cd into the directory and make the
 220 # target there.
 221 $(all-subdirs-targets):
 222         $(MAKE) $(PARALLELMFLAGS) -C $(@D) $(@F)
 223
 224 .PHONY: $(+subdir_targets) $(all-subdirs-targets)
 225 \f
 226 # Targets to clean things up to various degrees.
 227
 228 .PHONY: clean realclean distclean distclean-1 parent-clean parent-mostlyclean
 229
 230 # Subroutines of all cleaning targets.
 231 parent-mostlyclean: common-mostlyclean # common-mostlyclean is in Makerules.
 232         -rm -f $(foreach o,$(object-suffixes-for-libc),\
 233                    $(common-objpfx)$(patsubst %,$(libtype$o),c)) \
 234                $(addprefix $(objpfx),$(install-lib))
 235 parent-clean: parent-mostlyclean common-clean
 236
 237 postclean = $(addprefix $(common-objpfx),$(postclean-generated)) \
 238             $(addprefix $(objpfx),sysd-Makefile sysd-dirs sysd-rules) \
 239             $(objpfx)soversions.mk
 240
 241 clean: parent-clean
 242 # This is done this way rather than having `subdir_clean' be a
 243 # dependency of this target so that libc.a will be removed before the
 244 # subdirectories are dealt with and so they won't try to remove object
 245 # files from it when it's going to be removed anyway.
 246         @$(MAKE) subdir_clean no_deps=t
 247 mostlyclean: parent-mostlyclean
 248         @$(MAKE) subdir_mostlyclean no_deps=t
 249         -rm -f $(postclean)
 250
 251 # The realclean target is just like distclean for the parent, but we want
 252 # the subdirs to know the difference in case they care.
 253 realclean distclean: parent-clean
 254 # This is done this way rather than having `subdir_distclean' be a
 255 # dependency of this target so that libc.a will be removed before the
 256 # subdirectories are dealt with and so they won't try to remove object
 257 # files from it when it's going to be removed anyway.
 258         @$(MAKE) distclean-1 no_deps=t distclean-1=$@ avoid-generated=yes \
 259                  sysdep-subdirs="$(sysdep-subdirs)"
 260         -rm -f $(postclean)
 261
 262 # Subroutine of distclean and realclean.
 263 distclean-1: subdir_$(distclean-1)
 264         -rm -f $(config-generated)
 265         -rm -f $(addprefix $(objpfx),config.status config.cache config.log)
 266         -rm -f $(addprefix $(objpfx),config.make config-name.h config.h)
 267         -rm -f $(addprefix $(objpfx),glibcbug)
 268 ifdef objdir
 269         -rm -f $(objpfx)Makefile
 270 endif
 271         -rm -f $(sysdep-$(distclean-1))
 272 \f
 273 .PHONY: echo_subdirs
 274 echo_subdirs:;@echo '$(subdirs)'
 275
 276 .PHONY: echo-distinfo parent_echo-distinfo
 277 echo-distinfo: parent_echo-distinfo subdir_echo-distinfo
 278 parent_echo-distinfo:
 279         @echo $(addprefix +header+,$(headers)) \
 280               $(addprefix +nodist+,$(generated))
 281
 282 \f
 283 # Make the distribution tarfile.
 284
 285 distribute  := README README.libm INSTALL FAQ NOTES NEWS PROJECTS BUGS  \
 286                COPYING.LIB COPYING ChangeLog ChangeLog.[0-9]            \
 287                Makefile Makeconfig Makerules Rules Make-dist MakeTAGS   \
 288                extra-lib.mk o-iterator.mk                               \
 289                libc.map mkinstalldirs move-if-change install-sh         \
 290                configure configure.in aclocal.m4 config.sub config.guess\
 291                config.h.in config.make.in config-name.in Makefile.in    \
 292                autolock.sh rellns-sh munch-tmpl.c munch.awk interp.c    \
 293                sysdep.h set-hooks.h libc-symbols.h version.h shlib-versions \
 294                rpm/Makefile rpm/template rpm/rpmrc glibcbug.in abi-tags \
 295                stub-tag.h test-installation.pl test-skeleton.c          \
 296                include/des.h
 297
 298 distribute := $(strip $(distribute))
 299 generated := $(generated) stubs.h version-info.h
 300
 301 README: README.template version.h ; # Make-dist should update README.
 302
 303 define format-me
 304 @rm -f $@
 305 makeinfo --no-validate --no-warn --no-headers $< -o $@
 306 -chmod a-w $@
 307 endef
 308 INSTALL: manual/install.texi; $(format-me)
 309 NOTES: manual/creature.texi; $(format-me)
 310 manual/dir-add.texi manual/dir-add.info: FORCE
 311         $(MAKE) $(PARALLELMFLAGS) -C $(@D) $(@F)
 312 FAQ: gen-FAQ.pl FAQ.in
 313         $(PERL) $^ > $@.new && rm -f $@ && mv $@.new $@ && chmod a-w $@
 314 ifeq ($(with-cvs),yes)
 315         test ! -d CVS || cvs $(CVSOPTS) commit -m'Regenerated:  $(PERL) $^' $@
 316 endif
 317 FORCE:
 318
 319 rpm/%: subdir_distinfo
 320         $(MAKE) $(PARALLELMFLAGS) -C $(@D) subdirs='$(subdirs)' $(@F)
 321
 322 iconvdata/%:
 323         $(MAKE) $(PARALLELMFLAGS) -C $(@D) $(@F)
 324
 325 # This is a special goal for people making binary distributions.  Normally
 326 # everybody uses the DES based crypt library but for the distribution we
 327 # need the only-MD5 based one as well.
 328 md5-crypt/libmd5crypt:
 329         $(MAKE) $(PARALLELMFLAGS) -C $(@D) $(@F)