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 += $(inst_includedir)/gnu/lib-names.h
  78 endif
  79
  80 ifeq ($(versioning),yes)
  81 lib-noranlib: lib-mapfiles
  82 endif
  83
  84 include Makerules
  85
  86 ifeq ($(build-programs),yes)
  87 others: $(addprefix $(objpfx),$(install-bin))
  88 endif
  89
  90 # Install from subdirectories too.
  91 install: subdir_install
  92
  93 # Make sure that the dynamic linker is installed before libc.
  94 $(inst_slibdir)/libc-$(version).so: elf/ldso_install
  95
  96 .PHONY: elf/ldso_install
  97 elf/ldso_install:
  98         $(MAKE) -C $(@D) $(@F)
  99
 100 # Create links for shared libraries using the `ldconfig' program is possible.
 101 # Ignore the error if we cannot update /etc/ld.so.cache.
 102 ifeq (no,$(cross-compiling))
 103 ifeq (yes,$(build-shared))
 104 install:
 105         -test ! -x $(common-objpfx)elf/ldconfig || \
 106           $(common-objpfx)elf/ldconfig -d $(inst_slibdir) $(inst_libdir)
 107 ifneq (no,$(PERL))
 108 ifeq (/usr,$(prefix))
 109 ifeq (,$(install_root))
 110         CC="$(CC)" $(PERL) scripts/test-installation.pl $(common-objpfx)
 111 endif
 112 endif
 113 endif
 114 endif
 115 endif
 116
 117 # Build subdirectory lib objects.
 118 lib-noranlib: subdir_lib
 119
 120 ifeq (yes,$(build-shared))
 121 # Build the shared object from the PIC object library.
 122 lib: $(common-objpfx)libc.so
 123 endif
 124 \f
 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>.
 129
 130 subdir-stubs := $(foreach dir,$(subdirs),$(common-objpfx)$(dir)/stubs)
 131
 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 $(objpfx)stubs.h
 150 \f
 151 ifeq (yes,$(build-shared))
 152
 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
 158 endif
 159 \f
 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)
 164 \f
 165 # This makes the Info or DVI file of the documentation from the Texinfo source.
 166 .PHONY: info dvi
 167 info dvi:
 168         $(MAKE) $(PARALLELMFLAGS) -C manual $@
 169 \f
 170 # This makes all the subdirectory targets.
 171
 172 # For each target, make it depend on DIR/target for each subdirectory DIR.
 173 $(+subdir_targets): %: $(addsuffix /%,$(subdirs))
 174
 175 # Compute a list of all those targets.
 176 all-subdirs-targets := $(foreach dir,$(subdirs),\
 177                                  $(addprefix $(dir)/,$(+subdir_targets)))
 178
 179 # The action for each of those is to cd into the directory and make the
 180 # target there.
 181 $(all-subdirs-targets):
 182         $(MAKE) $(PARALLELMFLAGS) -C $(@D) $(@F)
 183
 184 .PHONY: $(+subdir_targets) $(all-subdirs-targets)
 185 \f
 186 # Targets to clean things up to various degrees.
 187
 188 .PHONY: clean realclean distclean distclean-1 parent-clean parent-mostlyclean
 189
 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
 196
 197 postclean = $(addprefix $(common-objpfx),$(postclean-generated)) \
 198             $(addprefix $(objpfx),sysd-Makefile sysd-dirs sysd-rules) \
 199             $(objpfx)soversions.mk
 200
 201 clean: parent-clean
 202 # This is done this way rather than having `subdir_clean' be a
 203 # dependency of this target so that libc.a will be removed before the
 204 # subdirectories are dealt with and so they won't try to remove object
 205 # files from it when it's going to be removed anyway.
 206         @$(MAKE) subdir_clean no_deps=t
 207 mostlyclean: parent-mostlyclean
 208         @$(MAKE) subdir_mostlyclean no_deps=t
 209         -rm -f $(postclean)
 210
 211 # The realclean target is just like distclean for the parent, but we want
 212 # the subdirs to know the difference in case they care.
 213 realclean distclean: parent-clean
 214 # This is done this way rather than having `subdir_distclean' be a
 215 # dependency of this target so that libc.a will be removed before the
 216 # subdirectories are dealt with and so they won't try to remove object
 217 # files from it when it's going to be removed anyway.
 218         @$(MAKE) distclean-1 no_deps=t distclean-1=$@ avoid-generated=yes \
 219                  sysdep-subdirs="$(sysdep-subdirs)"
 220         -rm -f $(postclean)
 221
 222 # Subroutine of distclean and realclean.
 223 distclean-1: subdir_$(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)
 228 ifdef objdir
 229         -rm -f $(objpfx)Makefile
 230 endif
 231         -rm -f $(sysdep-$(distclean-1))
 232 \f
 233 .PHONY: echo_subdirs
 234 echo_subdirs:;@echo '$(subdirs)'
 235
 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))
 241
 242 \f
 243 # Make the distribution tarfile.
 244
 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)
 258
 259 distribute := $(strip $(distribute))
 260 generated := $(generated) stubs.h
 261
 262 README: README.template version.h ; # Make-dist should update README.
 263
 264 define format-me
 265 @rm -f $@
 266 makeinfo --no-validate --no-warn --no-headers $< -o $@
 267 -chmod a-w $@
 268 endef
 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) $^' $@
 277 endif
 278 FORCE:
 279
 280 rpm/%: subdir_distinfo
 281         $(MAKE) $(PARALLELMFLAGS) -C $(@D) $(@F)
 282
 283 iconvdata/%:
 284         $(MAKE) $(PARALLELMFLAGS) -C $(@D) $(@F)
 285
 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) $(@F)
 291
 292 # glibc 2.0 contains some header files which aren't used with glibc 2.1
 293 # anymore.
 294 # These rules should remove those headers
 295 ifeq (,$(install_root))
 296 ifeq ($(old-glibc-headers),yes)
 297 install: remove-old-headers
 298 endif
 299 endif
 300
 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
 314
 315 .PHONY: remove-old-headers
 316 remove-old-headers:
 317         rm -f $(addprefix $(inst_includedir)/, $(headers2_0))
 318
 319 # Generate version maps.
 320 ifeq ($(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' $<; \
 325         echo endef) > $@T
 326         mv -f $@T $@
 327 -include $(common-objpfx)sysd-versions
 328 vers-libs := $(subst $(\n), ,$(vers-libs))
 329
 330 $(vers-libs): versions.awk \
 331                $(wildcard $(subdirs:%=%/Versions)) \
 332                $(wildcard $(+sysdep_dirs:%=%/Versions))
 333         $(AWK) -v 'buildroot=$(common-objpfx)' -f $^
 334
 335 lib-mapfiles: $(common-objpfx)sysd-versions $(subst %,.,$(vers-libs))
 336 else
 337 lib-mapfiles:
 338 endif
 339 endif