Makeconfig

   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 #       Makefile configuration options for the GNU C library.
  21 #
  22 ifneq (,)
  23 This makefile requires GNU Make.
  24 endif
  25
  26 all: # Make this the default goal
  27
  28 ifneq "$(origin +included-Makeconfig)" "file"
  29
  30 +included-Makeconfig := yes
  31
  32 ifdef subdir
  33 .. := ../
  34 endif
  35
  36 # If config.make exists, the source directory was configured,
  37 # so don't try to be clever and find another directory to build in.
  38 ifneq (,$(wildcard $(..)config.make))
  39 ARCH =
  40 machine =
  41 else    # Not configured.
  42 ifndef ARCH
  43 ifdef machine
  44 ARCH = $(machine)
  45 endif # machine
  46 endif # ARCH
  47 endif # config.make
  48
  49 # Directory for object files and libc.a.  If this is not defined, the
  50 # object files live in the subdirectories where their sources live, and
  51 # libc.a lives in the parent directory (this probably doesn't work any
  52 # more).
  53 ifdef ARCH
  54 ifeq ($(filter /%,$(ARCH)),)
  55 objdir := $(..)$(ARCH)
  56 else
  57 objdir = $(ARCH)
  58 endif
  59 endif
  60
  61 # $(common-objdir) is the place to put objects and
  62 # such that are not specific to a single subdir.
  63 ifdef objdir
  64 objpfx := $(patsubst %//,%/,$(objdir)/$(subdir)/)
  65 common-objpfx = $(objdir)/
  66 common-objdir = $(objdir)
  67 else
  68 objpfx :=
  69 ifdef ..
  70 common-objpfx = $(..)
  71 common-objdir = ..
  72 else
  73 # This is a kludge.  make wizards might grok.
  74 common-objpfx = sysdeps/../
  75 common-objdir = .
  76 endif
  77 endif
  78
  79 # Root of the sysdeps tree.
  80 sysdep_dir := $(..)sysdeps
  81 export sysdep_dir := $(sysdep_dir)
  82
  83 # Get the values defined by options to `configure'.
  84 include $(common-objpfx)config.make
  85
  86 # We have a special subdir for each binary format.
  87 # For now, only ELF is fully supported.
  88 ifeq ($(elf),yes)
  89 binfmt-subdir = elf
  90 else
  91 # This is probably better than nothing.
  92 binfmt-subdir = aout
  93 endif
  94
  95 # Complete path to sysdep dirs.
  96 export full-config-sysdirs := $(addprefix $(..),$(config-sysdirs))
  97
  98 # Run config.status to update config.make and config.h.  We don't show the
  99 # dependence of config.h to Make, because it is only touched when it
 100 # changes and so config.status would be run every time; the dependence of
 101 # config.make should suffice to force regeneration and re-exec, and the new
 102 # image will notice if config.h changed.
 103 $(common-objpfx)config.make: $(common-objpfx)config.status \
 104                              $(..)config.make.in $(..)config.h.in
 105         cd $(<D); $(SHELL) $(<F)
 106
 107 # Find all the sysdeps configure fragments, to make sure we re-run
 108 # configure when any of them changes.
 109 $(common-objpfx)config.status: $(..)version.h $(..)configure \
 110                                $(foreach dir,$(full-config-sysdirs),\
 111                                          $(wildcard \
 112                                            $(dir)/Implies) \
 113                                          $(patsubst %.in,%,\
 114                                                     $(firstword $(wildcard \
 115  $(addprefix $(dir)/,configure configure.in)))))
 116         @cd $(@D); if test -f $(@F); then exec $(SHELL) $(@F) --recheck; else \
 117          echo The GNU C library has not been configured. >&2; \
 118          echo Run \`configure\' to configure it before building. >&2; \
 119          echo Try \`configure --help\' for more details. >&2; \
 120          exit 1; fi
 121
 122 # We don't want CPPFLAGS to be exported to the command running configure.
 123 unexport CPPFLAGS
 124
 125 # Get the user's configuration parameters.
 126 ifneq ($(wildcard $(..)configparms),)
 127 include $(..)configparms
 128 endif
 129 ifneq ($(objpfx),)
 130 ifneq ($(wildcard $(common-objpfx)configparms),)
 131 include $(common-objpfx)configparms
 132 endif
 133 endif
 134 \f
 135 ####
 136 ####    These are the configuration variables.  You can define values for
 137 ####    the variables below in the file `configparms'.
 138 ####    Do NOT edit this file.
 139 ####
 140
 141
 142 # Set this to either `stdio' or `libio', to compile in either GNU stdio
 143 # or GNU libio.
 144 ifndef stdio
 145 stdio = stdio
 146 endif
 147
 148 # Common prefix for machine-independent installation directories.
 149 ifeq ($(origin prefix),undefined) # ifndef would override explicit empty value.
 150 prefix = /usr/local
 151 endif
 152
 153 # Decide whether we shall build the programs or not.  We always do this
 154 # unless the user tells us (in configparms) or we are building for a
 155 # standalone target.
 156 ifndef build-programs
 157 ifneq ($(config-os),none)
 158 build-programs=yes
 159 else
 160 build-programs=no
 161 endif
 162 endif
 163
 164 # Common prefix for machine-dependent installation directories.
 165 ifeq ($(origin exec_prefix),undefined)
 166 exec_prefix = $(prefix)
 167 endif
 168
 169 # Where to install the library and object files.
 170 ifndef libdir
 171 libdir = $(exec_prefix)/lib
 172 endif
 173 inst_libdir = $(install_root)$(libdir)
 174
 175 # Where to install the shared library and dynamic linker.
 176 ifndef slibdir
 177 slibdir = $(exec_prefix)/lib
 178 endif
 179 inst_slibdir = $(install_root)$(slibdir)
 180
 181 # Prefix to put on files installed in $(libdir).  For libraries `libNAME.a',
 182 # the prefix is spliced between `lib' and the name, so the linker switch
 183 # `-l$(libprefix)NAME' finds the library; for other files the prefix is
 184 # just prepended to the whole file name.
 185 ifeq ($(origin libprefix),undefined)
 186 libprefix =
 187 endif
 188
 189 # Where to install the header files.
 190 ifndef includedir
 191 includedir = $(exec_prefix)/include
 192 endif
 193 inst_includedir = $(install_root)$(includedir)
 194
 195 # Where to install machine-independent data files.
 196 # These are the timezone database, and the locale database.
 197 ifndef datadir
 198 datadir = $(prefix)/share
 199 endif
 200 inst_datadir = $(install_root)$(datadir)
 201
 202 # Where to install the timezone data files (which are machine-independent).
 203 ifndef zonedir
 204 zonedir = $(datadir)/zoneinfo
 205 endif
 206 inst_zonedir = $(install_root)$(zonedir)
 207
 208 # Where to install the locale and message catalog data files (which are
 209 # machine-independent).
 210 ifndef localedir
 211 localedir = $(datadir)/locale
 212 endif
 213 inst_localedir = $(install_root)$(localedir)
 214
 215 # Where to install the locale charmap source files.
 216 ifndef i18ndir
 217 i18ndir = $(datadir)/i18n
 218 endif
 219 inst_i18ndir = $(install_root)$(i18ndir)
 220
 221 # Where to install the shared object for charset transformation.
 222 ifndef gconvdir
 223 gconvdir = $(libdir)/gconv
 224 endif
 225 inst_gconvdir = $(install_root)$(gconvdir)
 226
 227 # Where to install programs.
 228 ifndef bindir
 229 bindir = $(exec_prefix)/bin
 230 endif
 231 inst_bindir = $(install_root)$(bindir)
 232
 233 # Where to install internal programs.
 234 ifndef libexecdir
 235 libexecdir = $(exec_prefix)/libexec
 236 endif
 237 inst_libexecdir = $(install_root)$(libexecdir)
 238
 239 # Where to install administrative programs.
 240 ifndef rootsbindir
 241 rootsbindir = $(exec_prefix)/sbin
 242 endif
 243 inst_rootsbindir = $(install_root)$(rootsbindir)
 244
 245 ifndef sbindir
 246 sbindir = $(exec_prefix)/sbin
 247 endif
 248 inst_sbindir = $(install_root)$(sbindir)
 249
 250 # Where to install the Info files.
 251 ifndef infodir
 252 infodir = $(prefix)/info
 253 endif
 254 inst_infodir = $(install_root)$(infodir)
 255
 256 # Where to install default configuration files.  These include the local
 257 # timezone specification and network data base files.
 258 ifndef sysconfdir
 259 sysconfdir = $(prefix)/etc
 260 endif
 261 inst_sysconfdir = $(install_root)$(sysconfdir)
 262
 263 # What timezone should be the installed default (e.g., US/Eastern).
 264 # Run `make -C time echo-zonenames' to see a list of available zone names.
 265 # The local timezone can be changed with `zic -l TIMEZONE' at any time.
 266 ifndef localtime
 267 localtime = Factory
 268 endif
 269
 270 # Where to install the "localtime" timezone file; this is the file whose
 271 # contents $(localtime) specifies.  If this is a relative pathname, it is
 272 # relative to $(zonedir).  It is a good idea to put this somewhere
 273 # other than there, so the zoneinfo directory contains only universal data,
 274 # localizing the configuration data elsewhere.
 275 ifndef localtime-file
 276 localtime-file = $(sysconfdir)/localtime
 277 inst_localtime-file = $(install_root)$(localtime-file)
 278 endif
 279
 280 # What to use for leap second specifications in compiling the default
 281 # timezone files.  Set this to `/dev/null' for no leap second handling as
 282 # 1003.1 requires, or to `leapseconds' for proper leap second handling.
 283 # Both zone flavors are always available as `posix/ZONE' and `right/ZONE'.
 284 # This variable determines the default: if it's `/dev/null',
 285 # ZONE==posix/ZONE; if it's `leapseconds', ZONE==right/ZONE.
 286 ifndef leapseconds
 287 leapseconds = /dev/null
 288 endif
 289
 290 # What timezone's DST rules should be used when a POSIX-style TZ
 291 # environment variable doesn't specify any rules.  For 1003.1 compliance
 292 # this timezone must use rules that are as U.S. federal law defines DST.
 293 # Run `make -C time echo-zonenames' to see a list of available zone names.
 294 # This setting can be changed with `zic -p TIMEZONE' at any time.
 295 # If you want POSIX.1 compatibility, use `America/New_York'.
 296 ifndef posixrules
 297 posixrules = America/New_York
 298 endif
 299
 300 # Where to install the "posixrules" timezone file; this is file
 301 # whose contents $(posixrules) specifies.  If this is a relative
 302 # pathname, it is relative to $(zonedir).
 303 ifndef posixrules-file
 304 posixrules-file = posixrules
 305 endif
 306
 307
 308 # Directory where your system's native header files live.
 309 # This is used on Unix systems to generate some GNU libc header files.
 310 ifndef sysincludedir
 311 sysincludedir = /usr/include
 312 endif
 313
 314
 315 # Commands to install files.
 316 ifndef INSTALL_DATA
 317 INSTALL_DATA = $(INSTALL) -m 644
 318 endif
 319 ifndef INSTALL_PROGRAM
 320 INSTALL_PROGRAM = $(INSTALL)
 321 endif
 322 ifndef INSTALL
 323 INSTALL = install
 324 endif
 325
 326
 327 # The name of the C compiler.
 328 # If you've got GCC, and it works, use it.
 329 ifeq ($(origin CC),default)
 330 CC := gcc
 331 endif
 332
 333 # The name of the C compiler to use for compilations of programs to run on
 334 # the host that is building the library.  If you set CC to a
 335 # cross-compiler, you must set this to the normal compiler.
 336 ifndef BUILD_CC
 337 BUILD_CC = $(CC)
 338 endif
 339
 340 # Default flags to pass the C compiler.
 341 ifndef default_cflags
 342 default_cflags := -g -O
 343 endif
 344
 345 # Flags to pass the C compiler when assembling preprocessed assembly code
 346 # (`.S' files).  On some systems the assembler doesn't understand the `#' line
 347 # directives the preprocessor produces.  If you have troubling compiling
 348 # assembly code, try using -P here to suppress these directives.
 349 ifndef asm-CPPFLAGS
 350 asm-CPPFLAGS =
 351 endif
 352
 353 # ELF always supports init/fini sections
 354 ifeq ($(elf),yes)
 355 have-initfini = yes
 356 endif
 357
 358 # Installed name of the startup code.
 359 ifneq ($(have-initfini),yes)
 360 # When not having init/fini, there is just one startfile, called crt0.o.
 361 start-installed-name = crt0.o
 362 else
 363 # On systems having init/fini, crt0.o is called crt1.o, and there are
 364 # some additional bizarre files.
 365 start-installed-name = crt1.o
 366 endif
 367
 368
 369 # Command for linking programs with the C library.
 370 ifndef +link
 371 +link = $(CC) -nostdlib -nostartfiles -o $@ \
 372               $(sysdep-LDFLAGS) $(config-LDFLAGS) $(LDFLAGS)  \
 373               $(addprefix $(csu-objpfx),$(start-installed-name)) \
 374               $(+preinit) $(+prector) \
 375               $(filter-out $(addprefix $(csu-objpfx),start.o \
 376                                                      $(start-installed-name))\
 377                            $(+preinit) $(link-extra-libs) \
 378                            $(common-objpfx)libc% $(+postinit),$^) \
 379               $(link-extra-libs) $(link-libc) $(+postctor) $(+postinit)
 380 endif
 381 # Command for statically linking programs with the C library.
 382 ifndef +link-static
 383 +link-static = $(CC) -nostdlib -nostartfiles -static -o $@ \
 384               $(sysdep-LDFLAGS) $(LDFLAGS)  \
 385               $(addprefix $(csu-objpfx),$(start-installed-name)) \
 386               $(+preinit) $(+prector) \
 387               $(filter-out $(addprefix $(csu-objpfx),start.o \
 388                                                      $(start-installed-name))\
 389                            $(+preinit) $(link-extra-libs-static) \
 390                            $(common-objpfx)libc% $(+postinit),$^) \
 391               $(link-extra-libs-static) $(link-libc-static) $(+postctor) $(+postinit)
 392 endif
 393 ifndef config-LDFLAGS
 394 ifeq (yes,$(build-shared))
 395 config-LDFLAGS = -Wl,-dynamic-linker=$(slibdir)/$(rtld-installed-name)
 396 endif
 397 endif
 398 ifndef link-libc
 399 ifeq (yes,$(build-shared))
 400 # We need the versioned name of libc.so in the deps of $(others) et al
 401 # so that the symlink to libc.so is created before anything tries to
 402 # run the linked programs.
 403 link-libc = -Wl,-rpath-link=$(rpath-link) \
 404             $(common-objpfx)libc.so$(libc.so-version) \
 405             $(common-objpfx)$(patsubst %,$(libtype.oS),c) $(gnulib)
 406 # Choose the default search path for the dynamic linker based on
 407 # where we will install libraries.
 408 ifneq ($(libdir),$(slibdir))
 409 default-rpath = $(slibdir):$(libdir)
 410 else
 411 default-rpath = $(libdir)
 412 endif
 413 # This is how to find at build-time things that will be installed there.
 414 rpath-dirs = math elf nss nis db2 rt resolv
 415 rpath-link = \
 416 $(common-objdir):$(subst $(empty) ,:,$(patsubst ../$(subdir),.,$(rpath-dirs:%=$(common-objpfx)%)))
 417 elfobjdir := $(patsubst ../$(subdir),.,$(common-objpfx)elf)
 418 dbobjdir := $(patsubst ../$(subdir),.,$(common-objpfx)db2)
 419 else
 420 nssobjdir := $(patsubst ../$(subdir),.,$(common-objpfx)nss)
 421 resolvobjdir := $(patsubst ../$(subdir),.,$(common-objpfx)resolv)
 422 link-libc = $(common-objpfx)libc.a $(otherlibs) $(gnulib) $(common-objpfx)libc.a
 423 endif
 424 endif
 425
 426 ifndef link-extra-libs
 427 ifeq (yes,$(build-shared))
 428 ifneq ($(common-objpfx),$(objpfx))
 429 link-extra-libs = $(foreach lib,$(LDLIBS-$(@F)),\
 430         $(wildcard $(common-objpfx)$(lib).so$($(notdir $(lib)).so-version) \
 431                    $(objpfx)$(lib).so$($(notdir $(lib)).so-version)))
 432 else
 433 link-extra-libs = $(foreach lib,$(LDLIBS-$(@F)),$(common-objpfx)$(lib).so$($(notdir $(lib)).so-version))
 434 endif
 435 else
 436 link-extra-libs = $(foreach lib,$(LDLIBS-$(@F)),$(common-objpfx)$(lib).a)
 437 endif
 438 endif
 439
 440 # The static libraries.
 441 ifeq (yes,$(build-static))
 442 link-libc-static = $(common-objpfx)libc.a $(gnulib) $(common-objpfx)libc.a
 443 link-extra-libs-static = $(foreach lib,$(LDLIBS-$(@F)),$(common-objpfx)$(lib).a)
 444 else
 445 ifeq (yes,$(build-shared))
 446 # We can try to link the programs with lib*_pic.a...
 447 link-libc-static = $(link-libc) $(common-objpfx)libc_pic.a
 448 link-extra-libs-static = $(link-extra-libs)
 449 endif
 450 endif
 451
 452 ifndef gnulib
 453 gnulib := -lgcc
 454 endif
 455 ifeq ($(elf),yes)
 456 +preinit = $(addprefix $(csu-objpfx),crti.o)
 457 +postinit = $(addprefix $(csu-objpfx),crtn.o)
 458 +prector = `$(CC) --print-file-name=crtbegin.o`
 459 +postctor = `$(CC) --print-file-name=crtend.o`
 460 +interp = $(addprefix $(elf-objpfx),interp.os)
 461 endif
 462 csu-objpfx = $(common-objpfx)csu/
 463 elf-objpfx = $(common-objpfx)elf/
 464
 465 # How to run a program we just linked with our library.
 466 # The program binary is assumed to be $(word 2,$^).
 467 built-program-file = $(dir $(word 2,$^))$(notdir $(word 2,$^))
 468 ifneq (yes,$(build-shared))
 469 built-program-cmd = $(built-program-file)
 470 else
 471 comma = ,
 472 sysdep-library-path = \
 473 $(subst $(empty) ,:,$(strip $(patsubst -Wl$(comma)-rpath-link=%, %,\
 474                                        $(filter -Wl$(comma)-rpath-link=%,\
 475                                                 $(sysdep-LDFLAGS)))))
 476 define built-program-cmd
 477 $(elf-objpfx)$(rtld-installed-name) \
 478         --library-path $(rpath-link)$(patsubst %,:%,$(sysdep-library-path)) \
 479         $(built-program-file)
 480 endef
 481 endif
 482
 483 ifndef LD
 484 LD := ld -X
 485 endif
 486
 487 ifndef  RANLIB
 488 RANLIB = ranlib
 489 endif
 490
 491 # Extra flags to pass to GCC.
 492 +gccwarn := -Wall -Wwrite-strings -Winline -Wstrict-prototypes
 493
 494 # This is the program that generates makefile
 495 # dependencies from C source files.
 496 ifndef +mkdep
 497 +mkdep = $(CC) -M
 498 endif
 499
 500 # The program that makes Emacs-style TAGS files.
 501 ETAGS   := etags -T
 502
 503 # The `m4' macro processor; this is used by sysdeps/sparc/Makefile (and
 504 # perhaps others) to preprocess assembly code in some cases.
 505 M4 = m4
 506
 507 # To force installation of files even if they are older than the
 508 # installed files.  This variable is included in the dependency list
 509 # of all installation targets.
 510 ifeq ($(force-install),yes)
 511 +force = force-install
 512 else
 513 +force =
 514 endif
 515
 516 ####
 517 #### End of configuration variables.
 518 ####
 519 \f
 520 # This tells some versions of GNU make before 3.63 not to export all variables.
 521 .NOEXPORT:
 522
 523 # We want to echo the commands we're running without
 524 # umpteen zillion filenames along with it (we use `...' instead)
 525 # but we don't want this echoing done when the user has said
 526 # he doesn't want to see commands echoed by using -s.
 527 ifneq   "$(findstring s,$(MAKEFLAGS))" ""       # if -s
 528 +cmdecho        := echo >/dev/null
 529 else                                            # not -s
 530 +cmdecho        := echo
 531 endif                                           # -s
 532
 533 # These are the flags given to the compiler to tell
 534 # it what sort of optimization and/or debugging output to do.
 535 ifndef  +cflags
 536 # If `CFLAGS' was defined, use that.
 537 ifdef           CFLAGS
 538 +cflags := $(filter-out -I%,$(CFLAGS))
 539 endif           # CFLAGS
 540 endif   # +cflags
 541
 542 # If none of the above worked, default to "-g -O".
 543 ifeq    "$(strip $(+cflags))" ""
 544 +cflags := $(default_cflags)
 545 endif   # $(+cflags) == ""
 546
 547 +cflags := $(+cflags) $(+gccwarn)
 548 +gcc-nowarn := -w
 549
 550 # Don't duplicate options if we inherited variables from the parent.
 551 +cflags := $(sort $(+cflags))
 552
 553
 554 # These are flags given to the C compiler to tell it to look for include
 555 # files (including ones given in angle brackets) in the current directory,
 556 # in the parent library source directory and in the include directory.
 557 # `+sysdep-includes' will be defined by Makerules.
 558 +includes = -I$(..)include -I. \
 559             $(patsubst %/,-I%,$(objpfx)) $(patsubst %/,-I%,$(..)) \
 560             $($(stdio)-include) $(includes) \
 561             $(+sysdep-includes) $(last-includes) $(sysincludes)
 562
 563 # Since libio has several internal header files, we use a -I instead
 564 # of many little headers in the include directory.
 565 libio-include = -I$(..)libio
 566
 567 # These are the variables that the implicit compilation rules use.
 568 CPPFLAGS = $($(subdir)-CPPFLAGS) $(+includes) $(defines) \
 569            -include $(..)include/libc-symbols.h $(sysdep-CPPFLAGS) \
 570            $(CPPFLAGS-$(suffix $@)) $(CPPFLAGS-$(<F)) $(CPPFLAGS-$(@F))
 571 override CFLAGS = $(filter-out %frame-pointer,$(+cflags)) $(sysdep-CFLAGS) \
 572                   $(CFLAGS-$(suffix $@)) $(CFLAGS-$(<F)) $(CFLAGS-$(@F))
 573
 574 # If everything is compiled with -fPIC (implicitly) we must tell this by
 575 # defining the PIC symbol.
 576 ifeq (yes,$(build-pic-default))
 577 pic-default = -DPIC
 578 endif
 579
 580 # Enable object files for different versions of the library.
 581 # Various things use $(object-suffixes) to know what all to make.
 582 # The compilation rules use $(CPPFLAGS-${SUFFIX}) and $(CFLAGS-${SUFFIX})
 583 # to pass different flags for each flavor.
 584 libtypes = $(foreach o,$(object-suffixes-for-libc),$(libtype$o))
 585 all-object-suffixes := .o .os .op .og .ob .oS
 586 object-suffixes :=
 587 CPPFLAGS-.o = $(pic-default)
 588 CFLAGS-.o = $(filter %frame-pointer,$(+cflags))
 589 ifeq (yes,$(build-static))
 590 libtype.o := lib%.a
 591 object-suffixes += .o
 592 endif
 593 ifeq (yes,$(build-shared))
 594 # Under --enable-shared, we will build a shared library of PIC objects.
 595 # The PIC object files are named foo.os.
 596 object-suffixes += .os
 597 CPPFLAGS-.os = -DPIC
 598 CFLAGS-.os = $(filter %frame-pointer,$(+cflags)) $(pic-ccflag)
 599 libtype.os := lib%_pic.a
 600 # This can be changed by a sysdep makefile
 601 pic-ccflag = -fPIC
 602 endif
 603 ifeq (yes,$(build-profile))
 604 # Under --enable-profile, we will build a static library of profiled objects.
 605 # The profiled object files are named foo.op.
 606 object-suffixes += .op
 607 CPPFLAGS-.op = -DPROF $(pic-default)
 608 CFLAGS-.op = -pg
 609 libtype.op = lib%_p.a
 610 endif
 611 ifeq (yes,$(build-omitfp))
 612 # Under --enable-omitfp, we build an the library optimized without
 613 # debugging information using -fomit-frame-pointer, and build an extra
 614 # library with debugging information.  The debuggable objects are named foo.og.
 615 object-suffixes += .og
 616 CPPFLAGS-.og = $(pic-default)
 617 CFLAGS-.og = -g
 618 CFLAGS-.o = $(filter %frame-pointer,$(+cflags)) -g0 -O99 -fomit-frame-pointer -D__USE_STRING_INLINES
 619 CFLAGS-.os += -g0 -O99 -fomit-frame-pointer -D__USE_STRING_INLINES
 620 libtype.og = lib%_g.a
 621 endif
 622 ifeq (yes,$(build-bounded))
 623 # Under --enable-bounded, we build the library with `-fbounded-pointers -g'
 624 # to runtime bounds checking.  The bounded-pointer objects are named foo.ob.
 625 object-suffixes += .ob
 626 CPPFLAGS-.ob = -DBOUNDED_POINTERS $(pic-default)
 627 CFLAGS-.ob = -g -fbounded-pointers
 628 libtype.ob = lib%_b.a
 629 endif
 630
 631 object-suffixes-for-libc := $(object-suffixes)
 632
 633 ifeq (yes,$(build-shared))
 634 # Build special library that contains the static-only routines for libc.
 635 object-suffixes-for-libc += .oS
 636
 637 # Must build the routines as PIC, though, because they can end up in (users')
 638 # shared objects.  We don't want to use CFLAGS-os because users may, for
 639 # example, make that processor-specific.
 640 CFLAGS-.oS = $(CFLAGS-.o) $(pic-ccflag)
 641 CPPFLAGS-.oS = $(CPPFLAGS-.o) -DPIC
 642 libtype.oS = lib%_nonshared.a
 643 endif
 644
 645
 646 +gnu-stabs = $(shell echo>&2 '*** BARF ON ME')
 647
 648 ifndef BUILD_CC
 649 BUILD_CC = $(CC)
 650 endif
 651
 652 move-if-change = $(SHELL) $(..)scripts/move-if-change
 653 \f
 654
 655 ifeq (yes, $(build-shared))
 656
 657 # Process the shlib-versions file, which tells us what shared library
 658 # version numbers to use when we install shared objects on this system.
 659 -include $(common-objpfx)soversions.mk
 660 ifndef avoid-generated
 661 $(common-objpfx)soversions.mk: $(..)shlib-versions $(..)Makeconfig \
 662                                $(wildcard $(patsubst %, $(..)%/shlib-versions,\
 663                                                         $(add-ons))) \
 664                                $(common-objpfx)config.make
 665         (file="$(wildcard $(patsubst %,$(..)%/shlib-versions,$(add-ons))) \
 666                $(..)shlib-versions"; \
 667          for f in $$file; do \
 668            sed 's/#.*$$//' $$f | while read conf versions; do \
 669              test -n "$$versions" && \
 670              test `expr '$(config-machine)-$(config-vendor)-$(config-os)' \
 671                         : "$$conf"` != 0 || continue; \
 672              for v in $$versions; do \
 673                lib=`echo $$v | sed 's/=.*$$//'`; \
 674                if eval "test -z \"\$$vers_lib$$lib\""; then \
 675                  eval vers_lib$${lib}=yes; \
 676                  number=`echo $$v | sed "s/^.*=//"`; \
 677                  case $$number in \
 678                    [0-9]*) echo "$$lib.so-version=.$$number"; \
 679                            echo "all-sonames+=$$lib.so\$$($$lib.so-version)";;\
 680                    *) echo "$$lib.so-version=$$number"; \
 681                       echo "all-sonames+=\$$($$lib.so-version)";;  \
 682                  esac; \
 683                fi; \
 684              done; \
 685            done; \
 686          done;) > $@T; exit 0
 687         mv -f $@T $@
 688 endif
 689
 690 postclean-generated += soversions.mk
 691
 692 # Generate the header containing the names of all shared libraries.
 693 # We use a stamp file to avoid uncessary recompilations.
 694 before-compile += $(common-objpfx)gnu/lib-names.h
 695 $(common-objpfx)gnu/lib-names.h: $(common-objpfx)gnu/lib-names.stmp; @:
 696 $(common-objpfx)gnu/lib-names.stmp: $(common-objpfx)soversions.mk
 697         $(make-target-directory)
 698         @rm -f ${@:stmp=T} $@
 699         (echo '/* This file is automatically generated.';\
 700          echo '   It defines macros to allow user program to find the shared';\
 701          echo '   library files which come as part of GNU libc.  */';\
 702          echo '#ifndef __GNU_LIB_NAMES_H'; \
 703          echo '#define __GNU_LIB_NAMES_H        1'; \
 704          echo; \
 705          (libs='$(all-sonames)';\
 706           for l in $$libs; do \
 707             upname=`echo $$l | sed 's/[.]so.*//' | \
 708                     tr 'abcdefghijklmnopqrstuvwxyz-' \
 709                        'ABCDEFGHIJKLMNOPQRSTUVWXYZ_'`; \
 710             echo "#define       $${upname}_SO   \"$$l\""; \
 711           done;) | sort; \
 712          echo; \
 713          echo '#endif   /* gnu/lib-names.h */';) > ${@:stmp=T}
 714         $(move-if-change) ${@:stmp=T} ${@:stmp=h}
 715         touch $@
 716
 717 common-generated += gnu/lib-names.h gnu/lib-names.stmp
 718
 719 # The name under which the run-time dynamic linker is installed.
 720 # We are currently going for the convention that `/lib/ld.so.1'
 721 # names the SVR4/ELF ABI-compliant dynamic linker.
 722 ifndef rtld-installed-name
 723 ifdef ld.so-version
 724 rtld-installed-name = $(ld.so-version)
 725 else
 726 rtld-installed-name = ld.so.1
 727 endif
 728 endif
 729
 730 ifndef rtld-version-installed-name
 731 rtld-version-installed-name = ld-$(version).so
 732 endif
 733
 734 endif # build-shared
 735
 736 ifneq (,$(findstring linuxthreads,$(add-ons)))
 737 shared-thread-library = $(common-objpfx)linuxthreads/libpthread.so
 738 static-thread-library = $(common-objpfx)linuxthreads/libpthread.a
 739 have-thread-library = yes
 740 rpath-dirs += linuxthreads
 741 endif
 742
 743 ifndef avoid-generated
 744 -include $(common-objpfx)sysd-dirs
 745 define \n
 746
 747
 748 endef
 749 sysdep-subdirs := $(subst $(\n), ,$(sysdep-subdirs))
 750 endif
 751
 752 # These are the subdirectories containing the library source.
 753 all-subdirs = csu assert ctype db db2 locale intl catgets math setjmp signal\
 754               stdlib stdio-common $(stdio) malloc string wcsmbs time dirent \
 755               grp pwd posix io termios resource misc socket sysvipc gmon    \
 756               gnulib iconv iconvdata wctype manual shadow md5-crypt po argp \
 757               $(add-ons) nss localedata timezone rt debug $(sysdep-subdirs) \
 758               $(binfmt-subdir)
 759 subdirs = $(all-subdirs)
 760
 761 # The mach and hurd subdirectories have many generated header files which
 762 # much of the rest of the library depends on, so it is best to build them
 763 # first (and mach before hurd, at that).  The before-compile additions in
 764 # sysdeps/{mach,hurd}/Makefile should make it reliably work for these files
 765 # not to exist when making in other directories, but it will be slower that
 766 # way with more somewhat expensive `make' invocations.
 767 subdirs := $(filter mach,$(subdirs)) $(filter hurd,$(subdirs)) \
 768            $(filter-out mach hurd,$(subdirs))
 769
 770 all-Subdirs-files = $(wildcard $(config-sysdirs:%=$(..)%/Subdirs))
 771 $(common-objpfx)sysd-dirs: $(common-objpfx)config.make $(all-Subdirs-files)
 772         (echo define sysdep-subdirs;                            \
 773          sed 's/#.*$$//' $(all-Subdirs-files) /dev/null;        \
 774          echo endef;                                            \
 775          echo 'sysd-dirs-done = t';                             \
 776         ) > $@-tmp
 777         mv -f $@-tmp $@
 778
 779 endif # Makeconfig not yet included