Makefile

   1 # Copyright (C) 1991-2002, 2003, 2004 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 Lesser General Public
   6 # License as published by the Free Software Foundation; either
   7 # version 2.1 of the 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 # Lesser General Public License for more details.
  13
  14 # You should have received a copy of the GNU Lesser General Public
  15 # License along with the GNU C Library; if not, write to the Free
  16 # Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  17 # 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 ifneq ($(AUTOCONF),no)
  34
  35 ifeq ($(with-cvs),yes)
  36 define autoconf-it-cvs
  37 test ! -d CVS || cvs $(CVSOPTS) commit -m'Regenerated: autoconf $(ACFLAGS) $<' $@
  38 endef
  39 else
  40 autoconf-it-cvs =
  41 endif
  42
  43 define autoconf-it
  44 @-rm -f $@.new
  45 $(AUTOCONF) $(ACFLAGS) $< > $@.new
  46 chmod a-w,a+x $@.new
  47 mv -f $@.new $@
  48 $(autoconf-it-cvs)
  49 endef
  50
  51 configure: configure.in aclocal.m4; $(autoconf-it)
  52 %/configure: %/configure.in aclocal.m4; $(autoconf-it)
  53
  54 endif # $(AUTOCONF) = no
  55
  56
  57 # We don't want to run anything here in parallel.
  58 .NOTPARALLEL:
  59
  60 # These are the targets that are made by making them in each subdirectory.
  61 +subdir_targets := subdir_lib objects objs others subdir_mostlyclean    \
  62                    subdir_clean subdir_distclean subdir_realclean       \
  63                    tests xtests subdir_lint.out                         \
  64                    subdir_update-abi subdir_check-abi subdir_distinfo   \
  65                    subdir_echo-headers subdir_echo-distinfo             \
  66                    subdir_install                                       \
  67                    subdir_testclean                                     \
  68                    $(addprefix install-, no-libc.a bin lib data headers others)
  69 \f
  70 headers := limits.h values.h features.h gnu-versions.h bits/libc-lock.h \
  71            bits/xopen_lim.h gnu/libc-version.h
  72
  73 echo-headers: subdir_echo-headers
  74
  75 # The headers are in the include directory.
  76 subdir-dirs = include
  77 vpath %.h $(subdir-dirs)
  78
  79 # What to install.
  80 install-others = $(inst_includedir)/gnu/stubs.h
  81 install-bin-script =
  82
  83 ifeq (yes,$(build-shared))
  84 headers += gnu/lib-names.h
  85 endif
  86
  87 include Makerules
  88
  89 ifeq ($(build-programs),yes)
  90 others: $(addprefix $(objpfx),$(install-bin-script))
  91 endif
  92
  93 # Install from subdirectories too.
  94 install: subdir_install
  95
  96 # Explicit dependency so that `make install-headers' works
  97 install-headers: install-headers-nosubdir
  98
  99 # Make sure that the dynamic linker is installed before libc.
 100 $(inst_slibdir)/libc-$(version).so: elf/ldso_install
 101
 102 .PHONY: elf/ldso_install
 103 elf/ldso_install:
 104         $(MAKE) -C $(@D) $(@F)
 105
 106 # Create links for shared libraries using the `ldconfig' program if possible.
 107 # Ignore the error if we cannot update /etc/ld.so.cache.
 108 ifeq (no,$(cross-compiling))
 109 ifeq (yes,$(build-shared))
 110 install: install-symbolic-link
 111 .PHONY: install-symbolic-link
 112 install-symbolic-link: subdir_install
 113         $(symbolic-link-prog) $(symbolic-link-list)
 114         rm -f $(symbolic-link-list)
 115
 116 install:
 117         -test ! -x $(common-objpfx)elf/ldconfig || LC_ALL=C LANGUAGE=C \
 118           $(common-objpfx)elf/ldconfig $(addprefix -r ,$(install_root)) \
 119                                        $(slibdir) $(libdir)
 120 ifneq (no,$(PERL))
 121 ifeq (/usr,$(prefix))
 122 ifeq (,$(install_root))
 123         CC="$(CC)" $(PERL) scripts/test-installation.pl $(common-objpfx)
 124 endif
 125 endif
 126 endif
 127 endif
 128 endif
 129
 130 # Build subdirectory lib objects.
 131 lib-noranlib: subdir_lib
 132
 133 ifeq (yes,$(build-shared))
 134 # Build the shared object from the PIC object library.
 135 lib: $(common-objpfx)libc.so
 136 endif
 137
 138
 139 # This is a handy script for running any dynamically linked program against
 140 # the current libc build for testing.
 141 $(common-objpfx)testrun.sh: $(common-objpfx)config.make \
 142                             $(..)Makeconfig $(..)Makefile
 143         (echo '#!/bin/sh'; \
 144          echo "GCONV_PATH='$(common-objpfx)iconvdata' \\"; \
 145          echo 'exec $(run-program-prefix) $${1+"$$@"}'; \
 146         ) > $@T
 147         chmod a+x $@T
 148         mv -f $@T $@
 149 postclean-generated += testrun.sh
 150
 151 others: $(common-objpfx)testrun.sh
 152 \f
 153 # Makerules creates a file `stubs' in each subdirectory, which
 154 # contains `#define __stub_FUNCTION' for each function defined in that
 155 # directory which is a stub.
 156 # Here we paste all of these together into <gnu/stubs.h>.
 157
 158 subdir-stubs := $(foreach dir,$(subdirs),$(common-objpfx)$(dir)/stubs)
 159
 160 # Since stubs.h is never needed when building the library, we simplify the
 161 # hairy installation process by producing it in place only as the last part
 162 # of the top-level `make install'.  It depends on subdir_install, which
 163 # iterates over all the subdirs; subdir_install in each subdir depends on
 164 # the subdir's stubs file.  Having more direct dependencies would result in
 165 # extra iterations over the list for subdirs and many recursive makes.
 166 $(inst_includedir)/gnu/stubs.h: include/stubs-prologue.h subdir_install
 167         $(make-target-directory)
 168         @rm -f $(objpfx)stubs.h
 169         (sed '/^@/d' $<; LC_ALL=C sort $(subdir-stubs)) > $(objpfx)stubs.h
 170         if test -r $@ && cmp -s $(objpfx)stubs.h $@; \
 171         then echo 'stubs.h unchanged'; \
 172         else $(INSTALL_DATA) $(objpfx)stubs.h $@; fi
 173         rm -f $(objpfx)stubs.h
 174 \f
 175 # This makes the Info or DVI file of the documentation from the Texinfo source.
 176 .PHONY: info dvi pdf html
 177 info dvi pdf html:
 178         $(MAKE) $(PARALLELMFLAGS) -C manual $@
 179 \f
 180 # This makes all the subdirectory targets.
 181
 182 # For each target, make it depend on DIR/target for each subdirectory DIR.
 183 $(+subdir_targets): %: $(addsuffix /%,$(subdirs))
 184
 185 # Compute a list of all those targets.
 186 all-subdirs-targets := $(foreach dir,$(subdirs),\
 187                                  $(addprefix $(dir)/,$(+subdir_targets)))
 188
 189 # The action for each of those is to cd into the directory and make the
 190 # target there.
 191 $(all-subdirs-targets):
 192         $(MAKE) $(PARALLELMFLAGS) -C $(@D) $(@F)
 193
 194 .PHONY: $(+subdir_targets) $(all-subdirs-targets)
 195 \f
 196 # Targets to clean things up to various degrees.
 197
 198 .PHONY: clean realclean distclean distclean-1 parent-clean parent-mostlyclean \
 199         tests-clean
 200
 201 # Subroutines of all cleaning targets.
 202 parent-mostlyclean: common-mostlyclean # common-mostlyclean is in Makerules.
 203         -rm -f $(foreach o,$(object-suffixes-for-libc),\
 204                    $(common-objpfx)$(patsubst %,$(libtype$o),c)) \
 205                $(addprefix $(objpfx),$(install-lib))
 206 parent-clean: parent-mostlyclean common-clean
 207
 208 postclean = $(addprefix $(common-objpfx),$(postclean-generated)) \
 209             $(addprefix $(objpfx),sysd-dirs sysd-rules) \
 210             $(addprefix $(objpfx),sysd-sorted soversions.mk soversions.i)
 211
 212 clean: parent-clean
 213 # This is done this way rather than having `subdir_clean' be a
 214 # dependency of this target so that libc.a will be removed before the
 215 # subdirectories are dealt with and so they won't try to remove object
 216 # files from it when it's going to be removed anyway.
 217         @$(MAKE) subdir_clean no_deps=t
 218         -rm -f $(postclean)
 219 mostlyclean: parent-mostlyclean
 220         @$(MAKE) subdir_mostlyclean no_deps=t
 221         -rm -f $(postclean)
 222
 223 tests-clean:
 224         @$(MAKE) subdir_testclean no_deps=t
 225
 226 tests: $(objpfx)c++-types-check.out
 227 ifneq ($(CXX),no)
 228 ifneq (,$(wildcard scripts/data/c++-types-$(config-machine)-$(config-os).data))
 229 $(objpfx)c++-types-check.out: scripts/data/c++-types-$(config-machine)-$(config-os).data
 230         scripts/check-c++-types.sh $^ $(CXX) $(filter-out -std=gnu99,$(CFLAGS)) $(CPPFLAGS) > $@
 231 else
 232 ifneq (,$(wildcard scripts/data/c++-types-$(base-machine)-$(config-os).data))
 233 $(objpfx)c++-types-check.out: scripts/data/c++-types-$(base-machine)-$(config-os).data
 234         scripts/check-c++-types.sh $^ $(CXX) $(filter-out -std=gnu99,$(CFLAGS)) $(CPPFLAGS) > $@
 235 else
 236 $(objpfx)c++-types-check.out:
 237         @echo 'WARNING C++ tests not run; create a c++-types-XXX file'
 238         @echo "not run" > $@
 239 endif
 240 endif
 241 endif
 242
 243 # The realclean target is just like distclean for the parent, but we want
 244 # the subdirs to know the difference in case they care.
 245 realclean distclean: parent-clean
 246 # This is done this way rather than having `subdir_distclean' be a
 247 # dependency of this target so that libc.a will be removed before the
 248 # subdirectories are dealt with and so they won't try to remove object
 249 # files from it when it's going to be removed anyway.
 250         @$(MAKE) distclean-1 no_deps=t distclean-1=$@ avoid-generated=yes \
 251                  sysdep-subdirs="$(sysdep-subdirs)"
 252         -rm -f $(postclean)
 253
 254 # Subroutine of distclean and realclean.
 255 distclean-1: subdir_$(distclean-1)
 256         -rm -f $(config-generated)
 257         -rm -f $(addprefix $(objpfx),config.status config.cache config.log)
 258         -rm -f $(addprefix $(objpfx),config.make config-name.h config.h)
 259 ifdef objdir
 260         -rm -f $(objpfx)Makefile
 261 endif
 262         -rm -f $(sysdep-$(distclean-1))
 263 \f
 264 .PHONY: echo_subdirs
 265 echo_subdirs:;@echo '$(subdirs)'
 266
 267 .PHONY: echo-distinfo parent_echo-distinfo
 268 echo-distinfo: parent_echo-distinfo subdir_echo-distinfo
 269 parent_echo-distinfo:
 270         @echo $(addprefix +header+,$(headers)) \
 271               $(addprefix +nodist+,$(generated))
 272
 273 \f
 274 # Make the distribution tarfile.
 275
 276 distribute  :=  README README.libm INSTALL FAQ FAQ.in NOTES NEWS BUGS   \
 277                 PROJECTS COPYING.LIB COPYING ChangeLog ChangeLog.[0-9]  \
 278                 ChangeLog.1[0-9] Makefile Makeconfig Makerules Rules    \
 279                 Make-dist MakeTAGS extra-lib.mk o-iterator.mk configure \
 280                 extra-modules.mk                                        \
 281                 configure.in aclocal.m4 config.h.in config.make.in      \
 282                 config-name.in Makefile.in sysdep.h set-hooks.h         \
 283                 libc-symbols.h version.h shlib-versions rpm/Makefile    \
 284                 rpm/template rpm/rpmrc abi-tags stub-tag.h              \
 285                 test-skeleton.c include/des.h include/libc-internal.h   \
 286                 include/shlib-compat.h include/pthread.h Versions.def   \
 287                 cppflags-iterator.mk tls.make.c                         \
 288                 include/stubs-prologue.h include/gnu/stubs.h            \
 289                 include/atomic.h bits/atomic.h symbol-hacks.h           \
 290                 INTERFACE CONFORMANCE NAMESPACE LICENSES                \
 291                 $(addprefix scripts/,                                   \
 292                             rellns-sh config.sub config.guess           \
 293                             mkinstalldirs move-if-change install-sh     \
 294                             test-installation.pl gen-FAQ.pl versions.awk\
 295                             gen-sorted.awk abi-versions.awk abilist.awk \
 296                             firstversions.awk documented.sh cpp         \
 297                             output-format.sed gen-as-const.awk          \
 298                             merge-abilist.awk extract-abilist.awk       \
 299                             rpm2dynsym.sh                               \
 300                             )                                           \
 301                 $(wildcard scripts/data/*.data)                         \
 302                 $(wildcard abilist/*.abilist)
 303
 304 distribute := $(strip $(distribute))
 305 generated := $(generated) stubs.h
 306
 307 README: README.template version.h
 308         -rm -f $@
 309         sed -e 's/RELEASE/$(release)/' -e 's/VERSION/$(version)/' < $< > $@
 310 # Make it unwritable so I won't change it by mistake.
 311         chmod 444 $@
 312 ifeq ($(with-cvs),yes)
 313         test ! -d CVS || cvs $(CVSOPTS) commit -m'Remade for $(release)-$(version)' $@
 314 endif
 315
 316 define format-me
 317 @rm -f $@
 318 makeinfo --no-validate --no-warn --no-headers $< -o $@
 319 -chmod a-w $@
 320 endef
 321 INSTALL: manual/install.texi; $(format-me)
 322 NOTES: manual/creature.texi; $(format-me)
 323 manual/dir-add.texi manual/dir-add.info: FORCE
 324         $(MAKE) $(PARALLELMFLAGS) -C $(@D) $(@F)
 325 FAQ: scripts/gen-FAQ.pl FAQ.in
 326         $(PERL) $^ > $@.new && rm -f $@ && mv $@.new $@ && chmod a-w $@
 327 ifeq ($(with-cvs),yes)
 328         test ! -d CVS || cvs $(CVSOPTS) commit -m'Regenerated:  $(PERL) $^' $@
 329 endif
 330 FORCE:
 331
 332 rpm/%: subdir_distinfo
 333         $(MAKE) $(PARALLELMFLAGS) -C $(@D) $(@F)
 334
 335 iconvdata/% localedata/% po/% manual/%:
 336         $(MAKE) $(PARALLELMFLAGS) -C $(@D) $(@F)
 337
 338 # glibc 2.0 contains some header files which aren't used with glibc 2.1
 339 # anymore.
 340 # These rules should remove those headers
 341 ifeq (,$(install_root))
 342 ifeq ($(old-glibc-headers),yes)
 343 install: remove-old-headers
 344 endif
 345 endif
 346
 347 headers2_0 :=   __math.h bytesex.h confname.h direntry.h elfclass.h     \
 348                 errnos.h fcntlbits.h huge_val.h ioctl-types.h           \
 349                 ioctls.h iovec.h jmp_buf.h libc-lock.h local_lim.h      \
 350                 mathcalls.h mpool.h nan.h ndbm.h posix1_lim.h           \
 351                 posix2_lim.h posix_opt.h resourcebits.h schedbits.h     \
 352                 selectbits.h semaphorebits.h sigaction.h sigcontext.h   \
 353                 signum.h sigset.h sockaddrcom.h socketbits.h stab.def   \
 354                 statbuf.h statfsbuf.h stdio-lock.h stdio_lim.h          \
 355                 syscall-list.h termbits.h timebits.h ustatbits.h        \
 356                 utmpbits.h utsnamelen.h waitflags.h waitstatus.h        \
 357                 xopen_lim.h gnu/types.h sys/ipc_buf.h                   \
 358                 sys/kernel_termios.h sys/msq_buf.h sys/sem_buf.h        \
 359                 sys/shm_buf.h sys/socketcall.h sigstack.h
 360
 361 .PHONY: remove-old-headers
 362 remove-old-headers:
 363         rm -f $(addprefix $(inst_includedir)/, $(headers2_0))