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
  27 # This is the default target; it makes everything except the tests.
  28 .PHONY: all
  29 all: lib others
  30 \f
  31 ifeq ($(with-cvs),yes)
  32 define autoconf-it
  33 @-rm -f $@.new
  34 autoconf $(ACFLAGS) $< > $@.new
  35 chmod a-w,a+x $@.new
  36 mv -f $@.new $@
  37 test ! -d CVS || cvs $(CVSOPTS) commit -m'Regenerated: autoconf $(ACFLAGS) $<' $@
  38 endef
  39 else
  40 define autoconf-it
  41 @-rm -f $@.new
  42 autoconf $(ACFLAGS) $< > $@.new
  43 chmod a-w,a+x $@.new
  44 mv -f $@.new $@
  45 endef
  46 endif
  47
  48 configure: configure.in aclocal.m4; $(autoconf-it)
  49 %/configure: %/configure.in aclocal.m4; $(autoconf-it)
  50
  51 include Makeconfig
  52
  53 ifndef avoid-generated
  54 -include $(objpfx)sysd-dirs
  55 define \n
  56
  57
  58 endef
  59 sysdep-subdirs := $(subst $(\n), ,$(sysdep-subdirs))
  60 endif
  61
  62 # These are the subdirectories containing the library source.
  63 subdirs = csu assert ctype db2 locale intl catgets math setjmp signal stdlib \
  64           stdio-common $(stdio) malloc string wcsmbs time dirent grp pwd \
  65           posix io termios resource misc socket sysvipc gmon gnulib iconv \
  66           iconvdata wctype manual shadow md5-crypt po argp $(add-ons) nss \
  67           localedata $(rt) $(sysdep-subdirs) $(binfmt-subdir)
  68 export subdirs := $(subdirs)    # Benign, useless in GNU make before 3.63.
  69
  70 # The mach and hurd subdirectories have many generated header files which
  71 # much of the rest of the library depends on, so it is best to build them
  72 # first (and mach before hurd, at that).  The before-compile additions in
  73 # sysdeps/{mach,hurd}/Makefile should make it reliably work for these files
  74 # not to exist when making in other directories, but it will be slower that
  75 # way with more somewhat expensive `make' invocations.
  76 subdirs := $(filter mach,$(subdirs)) $(filter hurd,$(subdirs)) \
  77            $(filter-out mach hurd,$(subdirs))
  78
  79 # All initialization source files.
  80 +subdir_inits   := $(wildcard $(foreach dir,$(subdirs),$(dir)/init-$(dir).c))
  81 # All subdirectories containing initialization source files.
  82 +init_subdirs   := $(patsubst %/,%,$(dir $(+subdir_inits)))
  83
  84
  85 # These are the targets that are made by making them in each subdirectory.
  86 +subdir_targets := subdir_lib objects objs others subdir_mostlyclean    \
  87                    subdir_clean subdir_distclean subdir_realclean       \
  88                    tests subdir_lint.out                                \
  89                    subdir_distinfo                                      \
  90                    subdir_echo-headers subdir_echo-distinfo             \
  91                    subdir_install                                       \
  92                    $(addprefix install-, no-libc.a bin lib data headers others)
  93 \f
  94 headers := errno.h sys/errno.h bits/errno.h limits.h values.h   \
  95            features.h gnu-versions.h bits/libc-lock.h bits/xopen_lim.h
  96 aux      = sysdep $(libc-init) version
  97 before-compile += $(objpfx)version-info.h
  98
  99 echo-headers: subdir_echo-headers
 100
 101 # The headers are in the include directory.
 102 subdir-dirs = include
 103 vpath %.h $(subdir-dirs)
 104
 105 # What to install.
 106 install-others = $(inst_includedir)/gnu/stubs.h
 107 install-bin = glibcbug
 108
 109 ifeq (yes,$(build-shared))
 110 install-others += $(inst_includedir)/gnu/lib-names.h
 111 endif
 112
 113 ifeq (yes,$(gnu-ld))
 114 libc-init = set-init
 115 else
 116 libc-init = munch-init
 117 $(objpfx)munch-init.c: munch.awk munch-tmpl.c $(+subdir_inits)
 118         awk -f $< subdirs='$(+init_subdirs)' $(word 2,$^) > $@-t
 119         mv -f $@-t $@
 120 generated := $(generated) munch-init.c
 121 endif
 122
 123
 124 include Makerules
 125
 126 # Install from subdirectories too.
 127 install: subdir_install
 128
 129 # Make sure that the dynamic linker is installed before libc.
 130 $(inst_slibdir)/libc-$(version).so: elf/ldso_install
 131
 132 .PHONY: elf/ldso_install
 133 elf/ldso_install:
 134         $(MAKE) -C $(@D) $(@F)
 135
 136 # Create links for shared libraries using the `ldconfig' program is possible.
 137 # Ignore the error if we cannot update /etc/ld.so.cache.
 138 ifeq (no,$(cross-compiling))
 139 ifeq (yes,$(build-shared))
 140 install:
 141         -test ! -x $(common-objpfx)elf/ldconfig || \
 142           $(common-objpfx)elf/ldconfig -d $(inst_slibdir) $(inst_libdir)
 143 ifneq (no,$(PERL))
 144 ifeq (/usr,$(prefix))
 145 ifeq (,$(install_root))
 146         CC="$(CC)" $(PERL) test-installation.pl $(common-objpfx)
 147 endif
 148 endif
 149 endif
 150 endif
 151 endif
 152
 153 # Build subdirectory lib objects.
 154 lib-noranlib: subdir_lib
 155
 156 ifeq (yes,$(build-shared))
 157 # Build the shared object from the PIC object library.
 158 lib: $(common-objpfx)libc.so
 159 endif
 160
 161 all-Subdirs-files = $(wildcard $(addsuffix /Subdirs, $(config-sysdirs)))
 162 $(objpfx)sysd-dirs: $(+sysdir_pfx)config.make $(all-Subdirs-files)
 163         (echo define sysdep-subdirs;                            \
 164          sed 's/#.*$$//' $(all-Subdirs-files) /dev/null;        \
 165          echo endef) > $@-tmp
 166         mv -f $@-tmp $@
 167 \f
 168 all-Banner-files = $(wildcard $(addsuffix /Banner, $(subdirs)))
 169 $(objpfx)version-info.h: $(+sysdir_pfx)config.make $(all-Banner-files)
 170         (case $(config-os) in \
 171            linux*) version=`(echo -e "#include <linux/version.h>\nUTS_RELEASE"\
 172                              | $(CC) -E -P - | \
 173                              sed -e 's/"\([^"]*\)".*/\1/p' -e d) 2>/dev/null`;\
 174                    if [ -z "$$version" ]; then \
 175                      if [ -r /proc/version ]; then \
 176                        version=`sed 's/.*version \([^ ]*\) .*/>>\1<</' \
 177                                 < /proc/version`; \
 178                      else \
 179                        version=`uname -r`; \
 180                      fi; \
 181                    fi; \
 182                    echo -n "\"Compiled on a Linux $$version system "; \
 183                    echo "on `date +%Y-%m-%d`.\\n\"" ;; \
 184            *) ;; \
 185          esac; \
 186          files="$(all-Banner-files)";                           \
 187          if test -n "$$files"; then                             \
 188            echo "\"Available extensions:";                      \
 189            sed -e '/^#/d' -e 's/^[[:space:]]*/  /' $$files;     \
 190            echo "\"";                                           \
 191          fi) > $@T
 192         mv -f $@T $@
 193
 194 version.c-objects := $(addprefix $(objpfx)version,$(object-suffixes))
 195 $(version.c-objects): $(objpfx)version-info.h
 196 \f
 197 # Makerules creates a file `stub-$(subdir)' for each subdirectory, which
 198 # contains `#define __stub_FUNCTION' for each function which is a stub.
 199 # Here we paste all of these together into <gnu/stubs.h>.
 200
 201 subdir-stubs := $(foreach dir,$(subdirs),$(common-objpfx)stub-$(dir))
 202
 203 # Since stubs.h is never needed when building the library, we simplify the
 204 # hairy installation process by producing it in place only as the last part
 205 # of the top-level `make install'.  It depends on subdir_install, which
 206 # iterates over all the subdirs; subdir_install in each subdir depends on
 207 # the subdir's stubs file.  Having more direct dependencies would result in
 208 # extra iterations over the list for subdirs and many recursive makes.
 209 $(inst_includedir)/gnu/stubs.h: subdir_install
 210         $(make-target-directory)
 211         @rm -f $(objpfx)stubs.h
 212         (echo '/* This file is automatically generated.';\
 213          echo '   It defines a symbol `__stub_FUNCTION'\'' for each function';\
 214          echo '   in the C library which is a stub, meaning it will fail';\
 215          echo '   every time called, usually setting errno to ENOSYS.  */';\
 216          sort $(subdir-stubs)) > $(objpfx)stubs.h
 217         if test -r $@ && cmp -s $(objpfx)stubs.h $@; \
 218         then echo 'stubs.h unchanged'; \
 219         else $(INSTALL_DATA) $(objpfx)stubs.h $@; fi
 220         rm -f $(objpfx)stubs.h
 221 \f
 222 ifeq (yes,$(build-shared))
 223
 224 $(inst_includedir)/gnu/lib-names.h: $(common-objpfx)gnu/lib-names.h
 225         $(make-target-directory)
 226         if test -r $@ && cmp -s $< $@; \
 227         then echo 'gnu/lib-names.h unchanged'; \
 228         else $(INSTALL_DATA) $< $@; fi
 229 endif
 230 \f
 231 # The `glibcbug' script contains the version number and it shall be rebuild
 232 # whenever this changes or the `glibcbug.in' file.
 233 $(objpfx)glibcbug: $(common-objpfx)config.status glibcbug.in
 234         cd $(<D); CONFIG_FILES=$(@F) CONFIG_HEADERS= $(SHELL) $(<F)
 235 \f
 236 # This makes the Info or DVI file of the documentation from the Texinfo source.
 237 .PHONY: info dvi
 238 info dvi:
 239         $(MAKE) $(PARALLELMFLAGS) -C manual $@
 240 \f
 241 # This makes all the subdirectory targets.
 242
 243 # For each target, make it depend on DIR/target for each subdirectory DIR.
 244 $(+subdir_targets): %: $(addsuffix /%,$(subdirs))
 245
 246 # Compute a list of all those targets.
 247 all-subdirs-targets := $(foreach dir,$(subdirs),\
 248                                  $(addprefix $(dir)/,$(+subdir_targets)))
 249
 250 # The action for each of those is to cd into the directory and make the
 251 # target there.
 252 $(all-subdirs-targets):
 253         $(MAKE) $(PARALLELMFLAGS) -C $(@D) $(@F)
 254
 255 .PHONY: $(+subdir_targets) $(all-subdirs-targets)
 256 \f
 257 # Targets to clean things up to various degrees.
 258
 259 .PHONY: clean realclean distclean distclean-1 parent-clean parent-mostlyclean
 260
 261 # Subroutines of all cleaning targets.
 262 parent-mostlyclean: common-mostlyclean # common-mostlyclean is in Makerules.
 263         -rm -f $(foreach o,$(object-suffixes),\
 264                    $(common-objpfx)$(patsubst %,$(libtype$o),c)) \
 265                $(addprefix $(objpfx),$(install-lib))
 266 parent-clean: parent-mostlyclean common-clean
 267
 268 postclean = $(addprefix $(common-objpfx),$(postclean-generated)) \
 269             $(addprefix $(objpfx),sysd-Makefile sysd-dirs sysd-rules)
 270
 271 clean: parent-clean
 272 # This is done this way rather than having `subdir_clean' be a
 273 # dependency of this target so that libc.a will be removed before the
 274 # subdirectories are dealt with and so they won't try to remove object
 275 # files from it when it's going to be removed anyway.
 276         @$(MAKE) subdir_clean no_deps=t
 277 mostlyclean: parent-mostlyclean
 278         @$(MAKE) subdir_mostlyclean no_deps=t
 279         -rm -f $(postclean)
 280
 281 # The realclean target is just like distclean for the parent, but we want
 282 # the subdirs to know the difference in case they care.
 283 realclean distclean: parent-clean
 284 # This is done this way rather than having `subdir_distclean' be a
 285 # dependency of this target so that libc.a will be removed before the
 286 # subdirectories are dealt with and so they won't try to remove object
 287 # files from it when it's going to be removed anyway.
 288         @$(MAKE) distclean-1 no_deps=t distclean-1=$@ avoid-generated=yes \
 289                  sysdep-subdirs="$(sysdep-subdirs)"
 290         -rm -f $(postclean)
 291
 292 # Subroutine of distclean and realclean.
 293 distclean-1: subdir_$(distclean-1)
 294         -rm -f $(config-generated)
 295         -rm -f $(addprefix $(objpfx),config.status config.cache config.log)
 296         -rm -f $(addprefix $(objpfx),config.make config-name.h config.h)
 297         -rm -f $(addprefix $(objpfx),glibcbug)
 298 ifdef objdir
 299         -rm -f $(objpfx)Makefile
 300 endif
 301         -rm -f $(sysdep-$(distclean-1))
 302 \f
 303 .PHONY: echo_subdirs
 304 echo_subdirs:;@echo '$(subdirs)'
 305
 306 .PHONY: echo-distinfo parent_echo-distinfo
 307 echo-distinfo: parent_echo-distinfo subdir_echo-distinfo
 308 parent_echo-distinfo:
 309         @echo $(addprefix +header+,$(headers)) \
 310               $(addprefix +nodist+,$(generated))
 311
 312 \f
 313 # Make the distribution tarfile.
 314
 315 distribute  := README INSTALL FAQ NOTES NEWS PROJECTS BUGS              \
 316                COPYING.LIB COPYING ChangeLog ChangeLog.[0-9]            \
 317                Makefile Makeconfig Makerules Rules Make-dist MakeTAGS   \
 318                extra-lib.mk o-iterator.mk                               \
 319                libc.map mkinstalldirs move-if-change install-sh         \
 320                configure configure.in aclocal.m4 config.sub config.guess\
 321                config.h.in config.make.in config-name.in Makefile.in    \
 322                autolock.sh rellns-sh munch-tmpl.c munch.awk interp.c    \
 323                sysdep.h set-hooks.h libc-symbols.h version.h shlib-versions \
 324                rpm/Makefile rpm/template rpm/rpmrc glibcbug.in abi-tags \
 325                stub-tag.h test-installation.pl
 326
 327 distribute := $(strip $(distribute))
 328 generated := $(generated) stubs.h version-info.h
 329
 330 README: README.template version.h ; # Make-dist should update README.
 331
 332 define format-me
 333 @rm -f $@
 334 makeinfo --no-validate --no-warn --no-headers $< -o $@
 335 -chmod a-w $@
 336 endef
 337 INSTALL: manual/maint.texi; $(format-me)
 338 NOTES: manual/creature.texi; $(format-me)
 339 manual/dir-add.texi manual/dir-add.info: FORCE
 340         $(MAKE) $(PARALLELMFLAGS) -C $(@D) $(@F)
 341 FAQ: gen-FAQ.pl FAQ.in
 342         $(PERL) $^ > $@.new && rm -f $@ && mv $@.new $@ && chmod a-w $@
 343 FORCE:
 344
 345 rpm/%: subdir_distinfo
 346         $(MAKE) $(PARALLELMFLAGS) -C $(@D) subdirs='$(subdirs)' $(@F)
 347
 348 iconvdata/%:
 349         $(MAKE) $(PARALLELMFLAGS) -C $(@D) $(@F)
 350
 351 # This is a special goal for people making binary distributions.  Normally
 352 # everybody uses the DES based crypt library but for the distribution we
 353 # need the only-MD5 based one as well.
 354 md5-crypt/libmd5crypt:
 355         $(MAKE) $(PARALLELMFLAGS) -C $(@D) $(@F)