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 # 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                                \
  57                    subdir_distinfo                                      \
  58                    subdir_echo-headers subdir_echo-distinfo             \
  59                    subdir_install                                       \
  60                    $(addprefix install-, no-libc.a bin lib data headers others)
  61 \f
  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  \
  64            gnu/libc-version.h
  65
  66 echo-headers: subdir_echo-headers
  67
  68 # The headers are in the include directory.
  69 subdir-dirs = include
  70 vpath %.h $(subdir-dirs)
  71
  72 # What to install.
  73 install-others = $(inst_includedir)/gnu/stubs.h
  74 install-bin = glibcbug
  75
  76 ifeq (yes,$(build-shared))
  77 install-others += $(inst_includedir)/gnu/lib-names.h
  78 endif
  79
  80 include Makerules
  81
  82 # Install from subdirectories too.
  83 install: subdir_install
  84
  85 # Make sure that the dynamic linker is installed before libc.
  86 $(inst_slibdir)/libc-$(version).so: elf/ldso_install
  87
  88 .PHONY: elf/ldso_install
  89 elf/ldso_install:
  90         $(MAKE) -C $(@D) $(@F)
  91
  92 # Create links for shared libraries using the `ldconfig' program is possible.
  93 # Ignore the error if we cannot update /etc/ld.so.cache.
  94 ifeq (no,$(cross-compiling))
  95 ifeq (yes,$(build-shared))
  96 install:
  97         -test ! -x $(common-objpfx)elf/ldconfig || \
  98           $(common-objpfx)elf/ldconfig -d $(inst_slibdir) $(inst_libdir)
  99 ifneq (no,$(PERL))
 100 ifeq (/usr,$(prefix))
 101 ifeq (,$(install_root))
 102         CC="$(CC)" $(PERL) scripts/test-installation.pl $(common-objpfx)
 103 endif
 104 endif
 105 endif
 106 endif
 107 endif
 108
 109 # Build subdirectory lib objects.
 110 lib-noranlib: subdir_lib
 111
 112 ifeq (yes,$(build-shared))
 113 # Build the shared object from the PIC object library.
 114 lib: $(common-objpfx)libc.so
 115 endif
 116 \f
 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>.
 121
 122 subdir-stubs := $(foreach dir,$(subdirs),$(common-objpfx)$(dir)/stubs)
 123
 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 $(objpfx)stubs.h
 142 \f
 143 ifeq (yes,$(build-shared))
 144
 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
 150 endif
 151 \f
 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)
 156 \f
 157 # This makes the Info or DVI file of the documentation from the Texinfo source.
 158 .PHONY: info dvi
 159 info dvi:
 160         $(MAKE) $(PARALLELMFLAGS) -C manual $@
 161 \f
 162 # This makes all the subdirectory targets.
 163
 164 # For each target, make it depend on DIR/target for each subdirectory DIR.
 165 $(+subdir_targets): %: $(addsuffix /%,$(subdirs))
 166
 167 # Compute a list of all those targets.
 168 all-subdirs-targets := $(foreach dir,$(subdirs),\
 169                                  $(addprefix $(dir)/,$(+subdir_targets)))
 170
 171 # The action for each of those is to cd into the directory and make the
 172 # target there.
 173 $(all-subdirs-targets):
 174         $(MAKE) $(PARALLELMFLAGS) -C $(@D) $(@F)
 175
 176 .PHONY: $(+subdir_targets) $(all-subdirs-targets)
 177 \f
 178 # Targets to clean things up to various degrees.
 179
 180 .PHONY: clean realclean distclean distclean-1 parent-clean parent-mostlyclean
 181
 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
 188
 189 postclean = $(addprefix $(common-objpfx),$(postclean-generated)) \
 190             $(addprefix $(objpfx),sysd-Makefile sysd-dirs sysd-rules) \
 191             $(objpfx)soversions.mk
 192
 193 clean: parent-clean
 194 # This is done this way rather than having `subdir_clean' be a
 195 # dependency of this target so that libc.a will be removed before the
 196 # subdirectories are dealt with and so they won't try to remove object
 197 # files from it when it's going to be removed anyway.
 198         @$(MAKE) subdir_clean no_deps=t
 199 mostlyclean: parent-mostlyclean
 200         @$(MAKE) subdir_mostlyclean no_deps=t
 201         -rm -f $(postclean)
 202
 203 # The realclean target is just like distclean for the parent, but we want
 204 # the subdirs to know the difference in case they care.
 205 realclean distclean: parent-clean
 206 # This is done this way rather than having `subdir_distclean' be a
 207 # dependency of this target so that libc.a will be removed before the
 208 # subdirectories are dealt with and so they won't try to remove object
 209 # files from it when it's going to be removed anyway.
 210         @$(MAKE) distclean-1 no_deps=t distclean-1=$@ avoid-generated=yes \
 211                  sysdep-subdirs="$(sysdep-subdirs)"
 212         -rm -f $(postclean)
 213
 214 # Subroutine of distclean and realclean.
 215 distclean-1: subdir_$(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)
 220 ifdef objdir
 221         -rm -f $(objpfx)Makefile
 222 endif
 223         -rm -f $(sysdep-$(distclean-1))
 224 \f
 225 .PHONY: echo_subdirs
 226 echo_subdirs:;@echo '$(subdirs)'
 227
 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))
 233
 234 \f
 235 # Make the distribution tarfile.
 236
 237 distribute  :=  README README.libm INSTALL FAQ FAQ.in NOTES NEWS BUGS   \
 238                 PROJECTS COPYING.LIB COPYING ChangeLog ChangeLog.[0-9]  \
 239                 Makefile Makeconfig Makerules Rules Make-dist MakeTAGS  \
 240                 extra-lib.mk o-iterator.mk libc.map configure           \
 241                 configure.in aclocal.m4 config.h.in config.make.in      \
 242                 config-name.in Makefile.in sysdep.h set-hooks.h         \
 243                 libc-symbols.h version.h shlib-versions rpm/Makefile    \
 244                 rpm/template rpm/rpmrc glibcbug.in abi-tags stub-tag.h  \
 245                 test-skeleton.c include/des.h                           \
 246                 $(addprefix scripts/,                                   \
 247                             rellns-sh config.sub config.guess           \
 248                             mkinstalldirs move-if-change install-sh     \
 249                             test-installation.pl gen-FAQ.pl)
 250
 251 distribute := $(strip $(distribute))
 252 generated := $(generated) stubs.h
 253
 254 README: README.template version.h ; # Make-dist should update README.
 255
 256 define format-me
 257 @rm -f $@
 258 makeinfo --no-validate --no-warn --no-headers $< -o $@
 259 -chmod a-w $@
 260 endef
 261 INSTALL: manual/install.texi; $(format-me)
 262 NOTES: manual/creature.texi; $(format-me)
 263 manual/dir-add.texi manual/dir-add.info: FORCE
 264         $(MAKE) $(PARALLELMFLAGS) -C $(@D) $(@F)
 265 FAQ: scripts/gen-FAQ.pl FAQ.in
 266         $(PERL) $^ > $@.new && rm -f $@ && mv $@.new $@ && chmod a-w $@
 267 ifeq ($(with-cvs),yes)
 268         test ! -d CVS || cvs $(CVSOPTS) commit -m'Regenerated:  $(PERL) $^' $@
 269 endif
 270 FORCE:
 271
 272 rpm/%: subdir_distinfo
 273         $(MAKE) $(PARALLELMFLAGS) -C $(@D) $(@F)
 274
 275 iconvdata/%:
 276         $(MAKE) $(PARALLELMFLAGS) -C $(@D) $(@F)
 277
 278 # This is a special goal for people making binary distributions.  Normally
 279 # everybody uses the DES based crypt library but for the distribution we
 280 # need the only-MD5 based one as well.
 281 md5-crypt/libmd5crypt:
 282         $(MAKE) $(PARALLELMFLAGS) -C $(@D) $(@F)