Makefile

   1 # Copyright (C) 1991-1999, 2000 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 # We don't want to run anything here in parallel.
  51 .NOTPARALLEL:
  52
  53 configure: configure.in aclocal.m4; $(autoconf-it)
  54 %/configure: %/configure.in aclocal.m4; $(autoconf-it)
  55
  56 # These are the targets that are made by making them in each subdirectory.
  57 +subdir_targets := subdir_lib objects objs others subdir_mostlyclean    \
  58                    subdir_clean subdir_distclean subdir_realclean       \
  59                    tests subdir_lint.out                                \
  60                    subdir_distinfo                                      \
  61                    subdir_echo-headers subdir_echo-distinfo             \
  62                    subdir_install                                       \
  63                    subdir_testclean                                     \
  64                    $(addprefix install-, no-libc.a bin lib data headers others)
  65 \f
  66 headers := errno.h sys/errno.h bits/errno.h limits.h values.h   \
  67            features.h gnu-versions.h bits/libc-lock.h bits/xopen_lim.h  \
  68            gnu/libc-version.h
  69
  70 echo-headers: subdir_echo-headers
  71
  72 # The headers are in the include directory.
  73 subdir-dirs = include
  74 vpath %.h $(subdir-dirs)
  75
  76 # What to install.
  77 install-others = $(inst_includedir)/gnu/stubs.h
  78 install-bin = glibcbug
  79
  80 ifeq (yes,$(build-shared))
  81 install-others += $(inst_includedir)/gnu/lib-names.h
  82 endif
  83
  84 include Makerules
  85
  86 ifeq ($(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) $(@F)
  99
 100 # Create links for shared libraries using the `ldconfig' program if possible.
 101 # Ignore the error if we cannot update /etc/ld.so.cache.
 102 ifeq (no,$(cross-compiling))
 103 ifeq (yes,$(build-shared))
 104 install: install-symbolic-link
 105 .PHONY: install-symbolic-link
 106 install-symbolic-link: subdir_install
 107         $(symbolic-link-prog) $(symbolic-link-list)
 108         rm -f $(symbolic-link-list)
 109
 110 install:
 111         -test ! -x $(common-objpfx)elf/ldconfig || \
 112           $(common-objpfx)elf/ldconfig $(addprefix -r ,$(install_root)) \
 113                                        $(slibdir) $(libdir)
 114 ifneq (no,$(PERL))
 115 ifeq (/usr,$(prefix))
 116 ifeq (,$(install_root))
 117         CC="$(CC)" $(PERL) scripts/test-installation.pl $(common-objpfx)
 118 endif
 119 endif
 120 endif
 121 endif
 122 endif
 123
 124 # Build subdirectory lib objects.
 125 lib-noranlib: subdir_lib
 126
 127 ifeq (yes,$(build-shared))
 128 # Build the shared object from the PIC object library.
 129 lib: $(common-objpfx)libc.so
 130 endif
 131 \f
 132 # Makerules creates a file `stubs' in each subdirectory, which
 133 # contains `#define __stub_FUNCTION' for each function defined in that
 134 # directory which is a stub.
 135 # Here we paste all of these together into <gnu/stubs.h>.
 136
 137 subdir-stubs := $(foreach dir,$(subdirs),$(common-objpfx)$(dir)/stubs)
 138
 139 # Since stubs.h is never needed when building the library, we simplify the
 140 # hairy installation process by producing it in place only as the last part
 141 # of the top-level `make install'.  It depends on subdir_install, which
 142 # iterates over all the subdirs; subdir_install in each subdir depends on
 143 # the subdir's stubs file.  Having more direct dependencies would result in
 144 # extra iterations over the list for subdirs and many recursive makes.
 145 $(inst_includedir)/gnu/stubs.h: subdir_install
 146         $(make-target-directory)
 147         @rm -f $(objpfx)stubs.h
 148         (echo '/* This file is automatically generated.';\
 149          echo '   It defines a symbol `__stub_FUNCTION'\'' for each function';\
 150          echo '   in the C library which is a stub, meaning it will fail';\
 151          echo '   every time called, usually setting errno to ENOSYS.  */';\
 152          sort $(subdir-stubs)) > $(objpfx)stubs.h
 153         if test -r $@ && cmp -s $(objpfx)stubs.h $@; \
 154         then echo 'stubs.h unchanged'; \
 155         else $(INSTALL_DATA) $(objpfx)stubs.h $@; fi
 156         rm -f $(objpfx)stubs.h
 157 \f
 158 ifeq (yes,$(build-shared))
 159
 160 $(inst_includedir)/gnu/lib-names.h: $(common-objpfx)gnu/lib-names.h $(+force)
 161         $(do-install)
 162 endif
 163 \f
 164 # The `glibcbug' script contains the version number and it shall be rebuild
 165 # whenever this changes or the `glibcbug.in' file.
 166 $(objpfx)glibcbug: $(common-objpfx)config.status glibcbug.in
 167         cd $(<D) && CONFIG_FILES=$(@F) CONFIG_HEADERS= $(SHELL) $(<F)
 168 \f
 169 # This makes the Info or DVI file of the documentation from the Texinfo source.
 170 .PHONY: info dvi pdf
 171 info dvi pdf:
 172         $(MAKE) $(PARALLELMFLAGS) -C manual $@
 173 \f
 174 # This makes all the subdirectory targets.
 175
 176 # For each target, make it depend on DIR/target for each subdirectory DIR.
 177 $(+subdir_targets): %: $(addsuffix /%,$(subdirs))
 178
 179 # Compute a list of all those targets.
 180 all-subdirs-targets := $(foreach dir,$(subdirs),\
 181                                  $(addprefix $(dir)/,$(+subdir_targets)))
 182
 183 # The action for each of those is to cd into the directory and make the
 184 # target there.
 185 $(all-subdirs-targets):
 186         $(MAKE) $(PARALLELMFLAGS) -C $(@D) $(@F)
 187
 188 .PHONY: $(+subdir_targets) $(all-subdirs-targets)
 189 \f
 190 # Targets to clean things up to various degrees.
 191
 192 .PHONY: clean realclean distclean distclean-1 parent-clean parent-mostlyclean \
 193         tests-clean
 194
 195 # Subroutines of all cleaning targets.
 196 parent-mostlyclean: common-mostlyclean # common-mostlyclean is in Makerules.
 197         -rm -f $(foreach o,$(object-suffixes-for-libc),\
 198                    $(common-objpfx)$(patsubst %,$(libtype$o),c)) \
 199                $(addprefix $(objpfx),$(install-lib))
 200 parent-clean: parent-mostlyclean common-clean
 201
 202 postclean = $(addprefix $(common-objpfx),$(postclean-generated)) \
 203             $(addprefix $(objpfx),sysd-Makefile sysd-dirs sysd-rules) \
 204             $(addprefix $(objpfx),sysd-sorted soversions.mk soversions.i)
 205
 206 clean: parent-clean
 207 # This is done this way rather than having `subdir_clean' be a
 208 # dependency of this target so that libc.a will be removed before the
 209 # subdirectories are dealt with and so they won't try to remove object
 210 # files from it when it's going to be removed anyway.
 211         @$(MAKE) subdir_clean no_deps=t
 212         -rm -f $(postclean)
 213 mostlyclean: parent-mostlyclean
 214         @$(MAKE) subdir_mostlyclean no_deps=t
 215         -rm -f $(postclean)
 216
 217 tests-clean:
 218         @$(MAKE) subdir_testclean no_deps=t
 219
 220 # The realclean target is just like distclean for the parent, but we want
 221 # the subdirs to know the difference in case they care.
 222 realclean distclean: parent-clean
 223 # This is done this way rather than having `subdir_distclean' be a
 224 # dependency of this target so that libc.a will be removed before the
 225 # subdirectories are dealt with and so they won't try to remove object
 226 # files from it when it's going to be removed anyway.
 227         @$(MAKE) distclean-1 no_deps=t distclean-1=$@ avoid-generated=yes \
 228                  sysdep-subdirs="$(sysdep-subdirs)"
 229         -rm -f $(postclean)
 230
 231 # Subroutine of distclean and realclean.
 232 distclean-1: subdir_$(distclean-1)
 233         -rm -f $(config-generated)
 234         -rm -f $(addprefix $(objpfx),config.status config.cache config.log)
 235         -rm -f $(addprefix $(objpfx),config.make config-name.h config.h)
 236         -rm -f $(addprefix $(objpfx),glibcbug)
 237 ifdef objdir
 238         -rm -f $(objpfx)Makefile
 239 endif
 240         -rm -f $(sysdep-$(distclean-1))
 241 \f
 242 .PHONY: echo_subdirs
 243 echo_subdirs:;@echo '$(subdirs)'
 244
 245 .PHONY: echo-distinfo parent_echo-distinfo
 246 echo-distinfo: parent_echo-distinfo subdir_echo-distinfo
 247 parent_echo-distinfo:
 248         @echo $(addprefix +header+,$(headers)) \
 249               $(addprefix +nodist+,$(generated))
 250
 251 \f
 252 # Make the distribution tarfile.
 253
 254 distribute  :=  README README.libm INSTALL FAQ FAQ.in NOTES NEWS BUGS   \
 255                 PROJECTS COPYING.LIB COPYING ChangeLog ChangeLog.[0-9]  \
 256                 Makefile Makeconfig Makerules Rules Make-dist MakeTAGS  \
 257                 extra-lib.mk o-iterator.mk configure configure.in       \
 258                 aclocal.m4 config.h.in config.make.in config-name.in    \
 259                 Makefile.in sysdep.h set-hooks.h libc-symbols.h         \
 260                 version.h shlib-versions rpm/Makefile rpm/template      \
 261                 rpm/rpmrc glibcbug.in abi-tags stub-tag.h               \
 262                 test-skeleton.c include/des.h Versions.def              \
 263                 INTERFACE CONFORMANCE NAMESPACE                         \
 264                 $(addprefix scripts/,                                   \
 265                             rellns-sh config.sub config.guess           \
 266                             mkinstalldirs move-if-change install-sh     \
 267                             test-installation.pl gen-FAQ.pl versions.awk\
 268                             gen-sorted.awk abi-versions.awk             \
 269                             firstversions.awk)
 270
 271 distribute := $(strip $(distribute))
 272 generated := $(generated) stubs.h
 273
 274 README: README.template version.h ; # Make-dist should update README.
 275
 276 define format-me
 277 @rm -f $@
 278 makeinfo --no-validate --no-warn --no-headers $< -o $@
 279 -chmod a-w $@
 280 endef
 281 INSTALL: manual/install.texi; $(format-me)
 282 NOTES: manual/creature.texi; $(format-me)
 283 manual/dir-add.texi manual/dir-add.info: FORCE
 284         $(MAKE) $(PARALLELMFLAGS) -C $(@D) $(@F)
 285 FAQ: scripts/gen-FAQ.pl FAQ.in
 286         $(PERL) $^ > $@.new && rm -f $@ && mv $@.new $@ && chmod a-w $@
 287 ifeq ($(with-cvs),yes)
 288         test ! -d CVS || cvs $(CVSOPTS) commit -m'Regenerated:  $(PERL) $^' $@
 289 endif
 290 FORCE:
 291
 292 rpm/%: subdir_distinfo
 293         $(MAKE) $(PARALLELMFLAGS) -C $(@D) $(@F)
 294
 295 iconvdata/% localedata/% po/%:
 296         $(MAKE) $(PARALLELMFLAGS) -C $(@D) $(@F)
 297
 298 # This is a special goal for people making binary distributions.  Normally
 299 # everybody uses the DES based crypt library but for the distribution we
 300 # need the only-MD5 based one as well.
 301 md5-crypt/libmd5crypt:
 302         $(MAKE) $(PARALLELMFLAGS) -C $(@D) $(@F)
 303
 304 # glibc 2.0 contains some header files which aren't used with glibc 2.1
 305 # anymore.
 306 # These rules should remove those headers
 307 ifeq (,$(install_root))
 308 ifeq ($(old-glibc-headers),yes)
 309 install: remove-old-headers
 310 endif
 311 endif
 312
 313 headers2_0 :=   __math.h bytesex.h confname.h direntry.h elfclass.h     \
 314                 errnos.h fcntlbits.h huge_val.h ioctl-types.h           \
 315                 ioctls.h iovec.h jmp_buf.h libc-lock.h local_lim.h      \
 316                 mathcalls.h mpool.h nan.h ndbm.h posix1_lim.h           \
 317                 posix2_lim.h posix_opt.h resourcebits.h schedbits.h     \
 318                 selectbits.h semaphorebits.h sigaction.h sigcontext.h   \
 319                 signum.h sigset.h sockaddrcom.h socketbits.h stab.def   \
 320                 statbuf.h statfsbuf.h stdio-lock.h stdio_lim.h          \
 321                 syscall-list.h termbits.h timebits.h ustatbits.h        \
 322                 utmpbits.h utsnamelen.h waitflags.h waitstatus.h        \
 323                 xopen_lim.h gnu/types.h sys/ipc_buf.h                   \
 324                 sys/kernel_termios.h sys/msq_buf.h sys/sem_buf.h        \
 325                 sys/shm_buf.h sys/socketcall.h sigstack.h
 326
 327 .PHONY: remove-old-headers
 328 remove-old-headers:
 329         rm -f $(addprefix $(inst_includedir)/, $(headers2_0))