configure.ac

   1 #   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
   2 #   2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
   3 #   Free Software Foundation, Inc.
   4 #
   5 # This file is free software; you can redistribute it and/or modify it
   6 # under the terms of the GNU General Public License as published by
   7 # the Free Software Foundation; either version 3 of the License, or
   8 # (at your option) any later version.
   9 #
  10 # This program is distributed in the hope that it will be useful, but
  11 # WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13 # General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License
  16 # along with this program; see the file COPYING3.  If not see
  17 # <http://www.gnu.org/licenses/>.
  18
  19 ##############################################################################
  20 ### WARNING: this file contains embedded tabs.  Do not run untabify on this file.
  21
  22 m4_include(config/acx.m4)
  23 m4_include(config/override.m4)
  24 m4_include(config/proginstall.m4)
  25 m4_include(config/elf.m4)
  26 m4_include([libtool.m4])
  27 m4_include([ltoptions.m4])
  28 m4_include([ltsugar.m4])
  29 m4_include([ltversion.m4])
  30 m4_include([lt~obsolete.m4])
  31 m4_include([config/cloog.m4])
  32
  33 AC_INIT(move-if-change)
  34 AC_PREREQ(2.64)
  35 AC_DISABLE_OPTION_CHECKING
  36
  37 progname=$0
  38 # if PWD already has a value, it is probably wrong.
  39 if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi
  40
  41 # Export original configure arguments for use by sub-configures.
  42 # Quote arguments with shell meta charatcers.
  43 TOPLEVEL_CONFIGURE_ARGUMENTS=
  44 set -- "$progname" "$@"
  45 for ac_arg
  46 do
  47   case "$ac_arg" in
  48   *" "*|*"      "*|*[[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\']]*)
  49     ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"`
  50     # if the argument is of the form -foo=baz, quote the baz part only
  51     ac_arg=`echo "'$ac_arg'" | sed "s/^'\([[-a-zA-Z0-9]]*=\)/\\1'/"` ;;
  52   *) ;;
  53   esac
  54   # Add the quoted argument to the list.
  55   TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS $ac_arg"
  56 done
  57 if test "$silent" = yes; then
  58   TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS --silent"
  59 fi
  60 # Remove the initial space we just introduced and, as these will be
  61 # expanded by make, quote '$'.
  62 TOPLEVEL_CONFIGURE_ARGUMENTS=`echo "x$TOPLEVEL_CONFIGURE_ARGUMENTS" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
  63 AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS)
  64
  65 # Find the build, host, and target systems.
  66 ACX_NONCANONICAL_BUILD
  67 ACX_NONCANONICAL_HOST
  68 ACX_NONCANONICAL_TARGET
  69
  70 dnl Autoconf 2.5x and later will set a default program prefix if
  71 dnl --target was used, even if it was the same as --host.  Disable
  72 dnl that behavior.  This must be done before AC_CANONICAL_SYSTEM
  73 dnl to take effect.
  74 test "$host_noncanonical" = "$target_noncanonical" &&
  75   test "$program_prefix$program_suffix$program_transform_name" = \
  76     NONENONEs,x,x, &&
  77   program_transform_name=s,y,y,
  78
  79 AC_CANONICAL_SYSTEM
  80 AC_ARG_PROGRAM
  81
  82 m4_pattern_allow([^AS_FOR_TARGET$])dnl
  83 m4_pattern_allow([^AS_FOR_BUILD$])dnl
  84
  85 # Get 'install' or 'install-sh' and its variants.
  86 AC_PROG_INSTALL
  87 ACX_PROG_LN
  88 AC_PROG_LN_S
  89 AC_PROG_SED
  90 AC_PROG_AWK
  91
  92 srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
  93
  94 # We pass INSTALL explicitly to sub-makes.  Make sure that it is not
  95 # a relative path.
  96 if test "$INSTALL" = "${srcdir}/install-sh -c"; then
  97   INSTALL="${srcpwd}/install-sh -c"
  98 fi
  99
 100 # Set srcdir to "." if that's what it is.
 101 # This is important for multilib support.
 102 pwd=`${PWDCMD-pwd}`
 103 if test "${pwd}" = "${srcpwd}" ; then
 104   srcdir=.
 105 fi
 106
 107 topsrcdir=$srcpwd
 108
 109 extra_host_args=
 110
 111 ### To add a new directory to the tree, first choose whether it is a target
 112 ### or a host dependent tool.  Then put it into the appropriate list
 113 ### (library or tools, host or target), doing a dependency sort.
 114
 115 # Subdirs will be configured in the order listed in build_configdirs,
 116 # configdirs, or target_configdirs; see the serialization section below.
 117
 118 # Dependency sorting is only needed when *configuration* must be done in
 119 # a particular order.  In all cases a dependency should be specified in
 120 # the Makefile, whether or not it's implicitly specified here.
 121
 122 # Double entries in build_configdirs, configdirs, or target_configdirs may
 123 # cause circular dependencies and break everything horribly.
 124
 125 # these library is used by various programs built for the build
 126 # environment
 127 #
 128 build_libs="build-libiberty"
 129
 130 # these tools are built for the build environment
 131 build_tools="build-texinfo build-flex build-bison build-m4 build-fixincludes"
 132
 133 # these libraries are used by various programs built for the host environment
 134 #
 135 host_libs="intl libiberty opcodes bfd readline tcl tk itcl libgui zlib libcpp libdecnumber gmp mpfr mpc ppl cloog libelf libiconv"
 136
 137 # these tools are built for the host environment
 138 # Note, the powerpc-eabi build depends on sim occurring before gdb in order to
 139 # know that we are building the simulator.
 140 # binutils, gas and ld appear in that order because it makes sense to run
 141 # "make check" in that particular order.
 142 # If --enable-gold is used, "gold" may replace "ld".
 143 host_tools="texinfo flex bison binutils gas ld fixincludes gcc cgen sid sim gdb gprof etc expect dejagnu m4 utils guile fastjar gnattools"
 144
 145 # libgcj represents the runtime libraries only used by gcj.
 146 libgcj="target-libffi \
 147         target-zlib \
 148         target-libjava"
 149
 150 # these libraries are built for the target environment, and are built after
 151 # the host libraries and the host tools (which may be a cross compiler)
 152 #
 153 target_libraries="target-libgcc \
 154                 target-libiberty \
 155                 target-libgloss \
 156                 target-newlib \
 157                 target-libgomp \
 158                 target-libstdc++-v3 \
 159                 target-libmudflap \
 160                 target-libssp \
 161                 target-libquadmath \
 162                 target-libgfortran \
 163                 target-boehm-gc \
 164                 ${libgcj} \
 165                 target-libobjc \
 166                 target-libada \
 167                 target-libgo"
 168
 169 # these tools are built using the target libraries, and are intended to
 170 # run only in the target environment
 171 #
 172 # note: any program that *uses* libraries that are in the "target_libraries"
 173 # list belongs in this list.
 174 #
 175 target_tools="target-rda"
 176
 177 ################################################################################
 178
 179 ## All tools belong in one of the four categories, and are assigned above
 180 ## We assign ${configdirs} this way to remove all embedded newlines.  This
 181 ## is important because configure will choke if they ever get through.
 182 ## ${configdirs} is directories we build using the host tools.
 183 ## ${target_configdirs} is directories we build using the target tools.
 184 configdirs=`echo ${host_libs} ${host_tools}`
 185 target_configdirs=`echo ${target_libraries} ${target_tools}`
 186 build_configdirs=`echo ${build_libs} ${build_tools}`
 187
 188 m4_divert_text([PARSE_ARGS],
 189 [case $srcdir in
 190   *" "*)
 191 m4_pushdef([AS_MESSAGE_LOG_FD], [])dnl
 192     AC_MSG_ERROR([path to source, $srcdir, contains spaces])
 193 m4_popdef([AS_MESSAGE_LOG_FD])dnl
 194     ;;
 195 esac
 196 ac_subdirs_all=`cd $srcdir && echo */configure | sed 's,/configure,,g'`
 197 ])
 198
 199 ################################################################################
 200
 201 srcname="gnu development package"
 202
 203 # This gets set non-empty for some net releases of packages.
 204 appdirs=""
 205
 206 # Define is_cross_compiler to save on calls to 'test'.
 207 is_cross_compiler=
 208 if test x"${host}" = x"${target}" ; then
 209   is_cross_compiler=no
 210 else
 211   is_cross_compiler=yes
 212 fi
 213
 214 # Find the build and target subdir names.
 215 GCC_TOPLEV_SUBDIRS
 216 # Be sure to cover against remnants of an in-tree build.
 217 if test $srcdir != .  && test -d $srcdir/host-${host_noncanonical}; then
 218   AC_MSG_ERROR([building out of tree but $srcdir contains host-${host_noncanonical}.
 219 Use a pristine source tree when building in a separate tree])
 220 fi
 221
 222 # Skipdirs are removed silently.
 223 skipdirs=
 224 # Noconfigdirs are removed loudly.
 225 noconfigdirs=""
 226
 227 use_gnu_ld=
 228 # Make sure we don't let GNU ld be added if we didn't want it.
 229 if test x$with_gnu_ld = xno ; then
 230   use_gnu_ld=no
 231   noconfigdirs="$noconfigdirs ld gold"
 232 fi
 233
 234 use_gnu_as=
 235 # Make sure we don't let GNU as be added if we didn't want it.
 236 if test x$with_gnu_as = xno ; then
 237   use_gnu_as=no
 238   noconfigdirs="$noconfigdirs gas"
 239 fi
 240
 241 use_included_zlib=
 242 # Make sure we don't let ZLIB be added if we didn't want it.
 243 if test x$with_system_zlib = xyes ; then
 244   use_included_zlib=no
 245   noconfigdirs="$noconfigdirs zlib"
 246 fi
 247
 248 # some tools are so dependent upon X11 that if we're not building with X,
 249 # it's not even worth trying to configure, much less build, that tool.
 250
 251 case ${with_x} in
 252   yes | "") ;; # the default value for this tree is that X11 is available
 253   no)
 254     skipdirs="${skipdirs} tk itcl libgui"
 255     # We won't be able to build gdbtk without X.
 256     enable_gdbtk=no
 257     ;;
 258   *)  echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
 259 esac
 260
 261 # Some are only suitable for cross toolchains.
 262 # Remove these if host=target.
 263 cross_only="target-libgloss target-newlib target-opcodes"
 264
 265 case $is_cross_compiler in
 266   no) skipdirs="${skipdirs} ${cross_only}" ;;
 267 esac
 268
 269 # If both --with-headers and --with-libs are specified, default to
 270 # --without-newlib.
 271 if test x"${with_headers}" != x && test x"${with_headers}" != xno \
 272    && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
 273   if test x"${with_newlib}" = x ; then
 274     with_newlib=no
 275   fi
 276 fi
 277
 278 # Recognize --with-newlib/--without-newlib.
 279 case ${with_newlib} in
 280   no) skipdirs="${skipdirs} target-newlib" ;;
 281   yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
 282 esac
 283
 284 # Handle --enable-gold, --enable-ld.
 285 # --disable-gold [--enable-ld]
 286 #     Build only ld.  Default option.
 287 # --enable-gold [--enable-ld]
 288 #     Build both gold and ld.  Install gold as "ld.gold", install ld
 289 #     as "ld.bfd" and "ld".
 290 # --enable-gold=default [--enable-ld]
 291 #     Build both gold and ld.  Install gold as "ld.gold" and "ld",
 292 #     install ld as "ld.bfd".
 293 # --enable-gold[=default] --disable-ld
 294 #     Build only gold, which is then installed as both "ld.gold" and "ld".
 295 # --enable-gold --enable-ld=default
 296 #     Build both gold (installed as "ld.gold") and ld (installed as "ld"
 297 #     and ld.bfd).
 298 #     In other words, ld is default
 299 # --enable-gold=default --enable-ld=default
 300 #     Error.
 301
 302 default_ld=
 303 AC_ARG_ENABLE(gold,
 304 [AS_HELP_STRING([[--enable-gold[=ARG]]],
 305                 [build gold @<:@ARG={default,yes,no}@:>@])],
 306 ENABLE_GOLD=$enableval,
 307 ENABLE_GOLD=no)
 308 case "${ENABLE_GOLD}" in
 309   yes|default)
 310     # Check for ELF target.
 311     is_elf=no
 312     case "${target}" in
 313       *-*-elf* | *-*-sysv4* | *-*-unixware* | *-*-eabi* | hppa*64*-*-hpux* \
 314       | *-*-linux* | frv-*-uclinux* | *-*-irix5* | *-*-irix6* \
 315       | *-*-netbsd* | *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* \
 316       | *-*-solaris2* | *-*-nto*)
 317         case "${target}" in
 318           *-*-linux*aout* | *-*-linux*oldld*)
 319             ;;
 320           *)
 321             is_elf=yes
 322             ;;
 323         esac
 324     esac
 325
 326     if test "$is_elf" = "yes"; then
 327       # Check for target supported by gold.
 328       case "${target}" in
 329         i?86-*-* | x86_64-*-* | sparc*-*-* | powerpc*-*-* | arm*-*-*)
 330           configdirs="$configdirs gold"
 331           if test x${ENABLE_GOLD} = xdefault; then
 332             default_ld=gold
 333           fi
 334           ENABLE_GOLD=yes
 335           ;;
 336       esac
 337     fi
 338     ;;
 339   no)
 340     ;;
 341   *)
 342     AC_MSG_ERROR([invalid --enable-gold argument])
 343     ;;
 344 esac
 345
 346 AC_ARG_ENABLE(ld,
 347 [AS_HELP_STRING([[--enable-ld[=ARG]]],
 348                 [build ld @<:@ARG={default,yes,no}@:>@])],
 349 ENABLE_LD=$enableval,
 350 ENABLE_LD=yes)
 351
 352 case "${ENABLE_LD}" in
 353   default)
 354     if test x${default_ld} != x; then
 355       AC_MSG_ERROR([either gold or ld can be the default ld])
 356     fi
 357     ;;
 358   yes)
 359     ;;
 360   no)
 361     if test x${ENABLE_GOLD} != xyes; then
 362       AC_MSG_WARN([neither ld nor gold are enabled])
 363     fi
 364     configdirs=`echo " ${configdirs} " | sed -e 's/ ld / /'`
 365     ;;
 366   *)
 367     AC_MSG_ERROR([invalid --enable-ld argument])
 368     ;;
 369 esac
 370
 371 # Configure extra directories which are host specific
 372
 373 case "${host}" in
 374   *-cygwin*)
 375     configdirs="$configdirs libtermcap" ;;
 376 esac
 377
 378 # A target can indicate whether a language isn't supported for some reason.
 379 # Only spaces may be used in this macro; not newlines or tabs.
 380 unsupported_languages=
 381
 382 # Remove more programs from consideration, based on the host or
 383 # target this usually means that a port of the program doesn't
 384 # exist yet.
 385
 386 case "${host}" in
 387   i[[3456789]]86-*-msdosdjgpp*)
 388     noconfigdirs="$noconfigdirs tcl tk itcl"
 389     ;;
 390 esac
 391
 392
 393 AC_ARG_ENABLE(libquadmath,
 394 AS_HELP_STRING([--disable-libquadmath],
 395   [do not build libquadmath directory]),
 396 ENABLE_LIBQUADMATH=$enableval,
 397 ENABLE_LIBQUADMATH=yes)
 398 if test "${ENABLE_LIBQUADMATH}" = "no" ; then
 399   noconfigdirs="$noconfigdirs target-libquadmath"
 400 fi
 401
 402
 403 AC_ARG_ENABLE(libquadmath-support,
 404 AS_HELP_STRING([--disable-libquadmath-support],
 405   [disable libquadmath support for Fortran]),
 406 ENABLE_LIBQUADMATH_SUPPORT=$enableval,
 407 ENABLE_LIBQUADMATH_SUPPORT=yes)
 408 enable_libquadmath_support=
 409 if test "${ENABLE_LIBQUADMATH_SUPPORT}" = "no" ; then
 410   enable_libquadmath_support=no
 411 fi
 412
 413
 414 AC_ARG_ENABLE(libada,
 415 [AS_HELP_STRING([--enable-libada], [build libada directory])],
 416 ENABLE_LIBADA=$enableval,
 417 ENABLE_LIBADA=yes)
 418 if test "${ENABLE_LIBADA}" != "yes" ; then
 419   noconfigdirs="$noconfigdirs gnattools"
 420 fi
 421
 422 AC_ARG_ENABLE(libssp,
 423 [AS_HELP_STRING([--enable-libssp], [build libssp directory])],
 424 ENABLE_LIBSSP=$enableval,
 425 ENABLE_LIBSSP=yes)
 426
 427 # Save it here so that, even in case of --enable-libgcj, if the Java
 428 # front-end isn't enabled, we still get libgcj disabled.
 429 libgcj_saved=$libgcj
 430 case $enable_libgcj in
 431 yes)
 432   # If we reset it here, it won't get added to noconfigdirs in the
 433   # target-specific build rules, so it will be forcibly enabled
 434   # (unless the Java language itself isn't enabled).
 435   libgcj=
 436   ;;
 437 no)
 438   # Make sure we get it printed in the list of not supported target libs.
 439   # Don't disable libffi, though, other languages use it.
 440   noconfigdirs="$noconfigdirs `echo ${libgcj} | sed -e 's/target-libffi//'`"
 441   # Clear libgcj_saved so that even if java is enabled libffi won't be
 442   # built.
 443   libgcj_saved=
 444   ;;
 445 esac
 446
 447
 448 # Disable libmudflap on some systems.
 449 if test x$enable_libmudflap = x ; then
 450     case "${target}" in
 451     *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | bfin*-*-uclinux* | *-*-kopensolaris*-gnu)
 452         # Enable libmudflap by default in GNU and friends.
 453         ;;
 454     *-*-freebsd*)
 455         # Enable libmudflap by default in FreeBSD.
 456         ;;
 457     *)
 458         # Disable it by default everywhere else.
 459         noconfigdirs="$noconfigdirs target-libmudflap"
 460         ;;
 461     esac
 462 fi
 463
 464 # Disable libgomp on non POSIX hosted systems.
 465 if test x$enable_libgomp = x ; then
 466     # Enable libgomp by default on hosted POSIX systems.
 467     case "${target}" in
 468     *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
 469         ;;
 470     *-*-netbsd* | *-*-freebsd* | *-*-openbsd* | *-*-dragonfly*)
 471         ;;
 472     *-*-solaris2* | *-*-irix6* | *-*-osf* | *-*-hpux11*)
 473         ;;
 474     *-*-darwin* | *-*-aix*)
 475         ;;
 476     *)
 477         noconfigdirs="$noconfigdirs target-libgomp"
 478         ;;
 479     esac
 480 fi
 481
 482 # Disable libssp for some systems.
 483 case "${target}" in
 484   avr-*-*)
 485     # No hosted I/O support.
 486     noconfigdirs="$noconfigdirs target-libssp"
 487     ;;
 488   powerpc-*-aix* | rs6000-*-aix*)
 489     noconfigdirs="$noconfigdirs target-libssp"
 490     ;;
 491 esac
 492
 493 # Disable target libiberty for some systems.
 494 case "${target}" in
 495   *-*-kaos*)
 496     # Remove unsupported stuff on all kaOS configurations.
 497     skipdirs="target-libiberty"
 498     ;;
 499   *-*-netbsd*)
 500     # Skip some stuff on all NetBSD configurations.
 501     noconfigdirs="$noconfigdirs target-libiberty"
 502     ;;
 503   *-*-netware*)
 504     noconfigdirs="$noconfigdirs target-libiberty"
 505     ;;
 506   *-*-rtems*)
 507     skipdirs="${skipdirs} target-libiberty"
 508     ;;
 509   *-*-tpf*)
 510     noconfigdirs="$noconfigdirs target-libiberty"
 511     ;;
 512   *-*-vxworks*)
 513     noconfigdirs="$noconfigdirs target-libiberty"
 514     ;;
 515   sh*-*-pe|mips*-*-pe|*arm-wince-pe)
 516     noconfigdirs="$noconfigdirs target-libiberty"
 517     ;;
 518   arm*-*-symbianelf*)
 519     noconfigdirs="$noconfigdirs target-libiberty"
 520     ;;
 521   avr-*-*)
 522     noconfigdirs="$noconfigdirs target-libiberty"
 523     ;;
 524   m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
 525     noconfigdirs="$noconfigdirs target-libiberty"
 526     ;;
 527   picochip-*-*)
 528     noconfigdirs="$noconfigdirs target-libiberty"
 529     ;;
 530   mips*-sde-elf*)
 531     skipdirs="$skipdirs target-libiberty"
 532     ;;
 533   ip2k-*-*)
 534     noconfigdirs="$noconfigdirs target-libiberty"
 535     ;;
 536 esac
 537
 538 # Disable libstdc++-v3 for some systems.
 539 case "${target}" in
 540   *-*-vxworks*)
 541     # VxWorks uses the Dinkumware C++ library.
 542     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 543     ;;
 544   arm*-wince-pe*)
 545     # the C++ libraries don't build on top of CE's C libraries
 546     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 547     ;;
 548   avr-*-*)
 549     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 550     ;;
 551 esac
 552
 553 # Disable Fortran for some systems.
 554 case "${target}" in
 555   mmix-*-*)
 556     # See <http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00572.html>.
 557     unsupported_languages="$unsupported_languages fortran"
 558     ;;
 559 esac
 560
 561 # Disable Java if libffi is not supported.
 562 case "${target}" in
 563   alpha*-*-*)
 564     ;;
 565   arm*-*-*)
 566     ;;
 567   cris-*-*)
 568     ;;
 569   frv-*-*)
 570     ;;
 571   hppa*-*-linux*)
 572     ;;
 573   hppa*-*-hpux*)
 574     ;;
 575   i?86-*-*)
 576     ;;
 577   ia64*-*-*)
 578     ;;
 579   m32r*-*-*)
 580     ;;
 581   m68k-*-*)
 582     ;;
 583   mips-sgi-irix6.* | mips*-*-rtems*)
 584     ;;
 585   mips*-*-linux*)
 586     ;;
 587   powerpc*-*-linux*)
 588     ;;
 589   powerpc-*-darwin*)
 590     ;;
 591   powerpc-*-aix* | rs6000-*-aix*)
 592     ;;
 593   powerpc-*-freebsd*)
 594     ;;
 595   powerpc64-*-freebsd*)
 596     ;;
 597   powerpc*-*-rtems*)
 598     ;;
 599   s390-*-* | s390x-*-*)
 600     ;;
 601   sh-*-* | sh[[34]]*-*-*)
 602     ;;
 603   sh64-*-* | sh5*-*-*)
 604     ;;
 605   sparc*-*-*)
 606     ;;
 607   x86_64-*-*)
 608     ;;
 609   *-*-*)
 610     unsupported_languages="$unsupported_languages java"
 611     ;;
 612 esac
 613
 614 # Disable Java, libgcj or related libraries for some systems.
 615 case "${target}" in
 616   powerpc-*-darwin*)
 617     ;;
 618   i[[3456789]]86-*-darwin*)
 619     ;;
 620   x86_64-*-darwin[[912]]*)
 621     ;;
 622   *-*-darwin*)
 623     noconfigdirs="$noconfigdirs ${libgcj}"
 624     ;;
 625   *-*-netware*)
 626     noconfigdirs="$noconfigdirs ${libgcj}"
 627     ;;
 628   *-*-rtems*)
 629     noconfigdirs="$noconfigdirs ${libgcj}"
 630     ;;
 631   *-*-tpf*)
 632     noconfigdirs="$noconfigdirs ${libgcj}"
 633     ;;
 634   *-*-uclinux*)
 635     noconfigdirs="$noconfigdirs ${libgcj}"
 636     ;;
 637   *-*-vxworks*)
 638     noconfigdirs="$noconfigdirs ${libgcj}"
 639     ;;
 640   alpha*-*-*vms*)
 641     noconfigdirs="$noconfigdirs ${libgcj}"
 642     ;;
 643   arm-wince-pe)
 644     noconfigdirs="$noconfigdirs ${libgcj}"
 645     ;;
 646   arm*-*-symbianelf*)
 647     noconfigdirs="$noconfigdirs ${libgcj}"
 648     ;;
 649   bfin-*-*)
 650     noconfigdirs="$noconfigdirs target-boehm-gc"
 651     ;;
 652   cris-*-* | crisv32-*-*)
 653     unsupported_languages="$unsupported_languages java"
 654     case "${target}" in
 655       *-*-linux*)
 656         ;;
 657       *) # See PR46792 regarding target-libffi.
 658         noconfigdirs="$noconfigdirs target-libffi target-boehm-gc";;
 659     esac
 660     ;;
 661   hppa*64*-*-linux*)
 662     # In this case, it's because the hppa64-linux target is for
 663     # the kernel only at this point and has no libc, and thus no
 664     # headers, crt*.o, etc., all of which are needed by these.
 665     unsupported_languages="$unsupported_languages java"
 666     ;;
 667   hppa*64*-*-hpux*)
 668     noconfigdirs="$noconfigdirs ${libgcj}"
 669     ;;
 670   hppa*-hp-hpux11*)
 671     ;;
 672   hppa*-*-hpux*)
 673     # According to Alexandre Oliva <aoliva@redhat.com>, libjava won't
 674     # build on HP-UX 10.20.
 675     noconfigdirs="$noconfigdirs ${libgcj}"
 676     ;;
 677   ia64*-*-*vms*)
 678     noconfigdirs="$noconfigdirs ${libgcj}"
 679     ;;
 680   i[[3456789]]86-w64-mingw*)
 681     noconfigdirs="$noconfigdirs ${libgcj}"
 682     ;;
 683   i[[3456789]]86-*-mingw*)
 684     noconfigdirs="$noconfigdirs ${libgcj}"
 685     ;;
 686   x86_64-*-mingw*)
 687     noconfigdirs="$noconfigdirs ${libgcj}"
 688     ;;
 689   mmix-*-*)
 690     noconfigdirs="$noconfigdirs target-libffi target-boehm-gc"
 691     ;;
 692   powerpc-*-aix*)
 693     # copied from rs6000-*-* entry
 694     noconfigdirs="$noconfigdirs ${libgcj}"
 695     ;;
 696   rs6000-*-aix*)
 697     noconfigdirs="$noconfigdirs ${libgcj}"
 698     ;;
 699   mips*-*-irix6*)
 700     # Linking libjava exceeds command-line length limits on at least
 701     # IRIX 6.2, but not on IRIX 6.5.
 702     # Also, boehm-gc won't build on IRIX 6.5, according to Jeffrey Oldham
 703     # <oldham@codesourcery.com>
 704     noconfigdirs="$noconfigdirs ${libgcj}"
 705     ;;
 706   *-*-lynxos*)
 707     noconfigdirs="$noconfigdirs ${libgcj}"
 708     ;;
 709 esac
 710
 711 # Default libgloss CPU subdirectory.
 712 libgloss_dir="$target_cpu"
 713
 714 case "${target}" in
 715   sh*-*-pe|mips*-*-pe|*arm-wince-pe)
 716     libgloss_dir=wince
 717     ;;
 718   arm*-*-*)
 719     libgloss_dir=arm
 720     ;;
 721   cris-*-* | crisv32-*-*)
 722     libgloss_dir=cris
 723     ;;
 724   hppa*-*-*)
 725     libgloss_dir=pa
 726     ;;
 727   i[[3456789]]86-*-*)
 728     libgloss_dir=i386
 729     ;;
 730   m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
 731     libgloss_dir=m68hc11
 732     ;;
 733   m68*-*-* | fido-*-*)
 734     libgloss_dir=m68k
 735     ;;
 736   mips*-*-*)
 737     libgloss_dir=mips
 738     ;;
 739   powerpc*-*-*)
 740     libgloss_dir=rs6000
 741     ;;
 742   sparc*-*-*)
 743     libgloss_dir=sparc
 744     ;;
 745 esac
 746
 747 case "${target}" in
 748   *-*-chorusos)
 749     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 750     ;;
 751   powerpc-*-darwin*)
 752     noconfigdirs="$noconfigdirs ld gas gdb gprof"
 753     noconfigdirs="$noconfigdirs sim target-rda"
 754     ;;
 755   i[[3456789]]86-*-darwin*)
 756     noconfigdirs="$noconfigdirs ld gprof"
 757     noconfigdirs="$noconfigdirs sim target-rda"
 758     ;;
 759   x86_64-*-darwin[[912]]*)
 760     noconfigdirs="$noconfigdirs ld gas gprof"
 761     noconfigdirs="$noconfigdirs sim target-rda"
 762     ;;
 763   *-*-darwin*)
 764     noconfigdirs="$noconfigdirs ld gas gdb gprof"
 765     noconfigdirs="$noconfigdirs sim target-rda"
 766     ;;
 767   *-*-dragonfly*)
 768     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 769     ;;
 770   *-*-freebsd*)
 771     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 772     if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
 773         && test -f /usr/local/include/gmp.h; then
 774       with_gmp=/usr/local
 775     fi
 776     ;;
 777   *-*-kaos*)
 778     # Remove unsupported stuff on all kaOS configurations.
 779     noconfigdirs="$noconfigdirs target-libgloss"
 780     ;;
 781   *-*-netbsd*)
 782     # Skip some stuff on all NetBSD configurations.
 783     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 784     ;;
 785   *-*-netware*)
 786     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 787     ;;
 788   *-*-rtems*)
 789     noconfigdirs="$noconfigdirs target-libgloss"
 790     ;;
 791     # The tpf target doesn't support gdb yet.
 792   *-*-tpf*)
 793     noconfigdirs="$noconfigdirs target-newlib target-libgloss gdb tcl tk libgui itcl"
 794     ;;
 795   *-*-uclinux*)
 796     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-rda"
 797     ;;
 798   *-*-vxworks*)
 799     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 800     ;;
 801   alpha*-dec-osf*)
 802     # ld works, but does not support shared libraries.
 803     # newlib is not 64 bit ready.
 804     # gas doesn't generate exception information.
 805     noconfigdirs="$noconfigdirs gas ld target-newlib target-libgloss"
 806     ;;
 807   alpha*-*-*vms*)
 808     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 809     ;;
 810   alpha*-*-linux*)
 811     # newlib is not 64 bit ready
 812     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 813     ;;
 814   alpha*-*-*)
 815     # newlib is not 64 bit ready
 816     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 817     ;;
 818   am33_2.0-*-linux*)
 819     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 820     ;;
 821   sh-*-linux*)
 822     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 823     ;;
 824   sh*-*-pe|mips*-*-pe|*arm-wince-pe)
 825     noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
 826     noconfigdirs="$noconfigdirs target-newlib"
 827     ;;
 828   arc-*-*)
 829     noconfigdirs="$noconfigdirs target-libgloss"
 830     ;;
 831   arm-*-coff)
 832     ;;
 833   arm-*-elf* | arm*-*-eabi* )
 834     ;;
 835   arm*-*-linux-gnueabi)
 836     case ${with_newlib} in
 837       no) noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 838     esac
 839     ;;
 840   arm*-*-symbianelf*)
 841     ;;
 842   arm-*-pe*)
 843     noconfigdirs="$noconfigdirs target-libgloss"
 844     ;;
 845   arm-*-riscix*)
 846     noconfigdirs="$noconfigdirs ld target-libgloss"
 847     ;;
 848   avr-*-*)
 849     ;;
 850   bfin-*-*)
 851     ;;
 852   c4x-*-* | tic4x-*-*)
 853     noconfigdirs="$noconfigdirs target-libgloss"
 854     ;;
 855   tic54x-*-*)
 856     noconfigdirs="$noconfigdirs target-libgloss gdb"
 857     ;;
 858   cr16-*-*)
 859     noconfigdirs="$noconfigdirs gdb"
 860     ;;
 861   cris-*-* | crisv32-*-*)
 862     case "${target}" in
 863       *-*-linux*)
 864         noconfigdirs="$noconfigdirs target-newlib target-libgloss";;
 865     esac
 866     ;;
 867   d10v-*-*)
 868     noconfigdirs="$noconfigdirs target-libgloss"
 869     ;;
 870   d30v-*-*)
 871     noconfigdirs="$noconfigdirs gdb"
 872     ;;
 873   fr30-*-elf*)
 874     noconfigdirs="$noconfigdirs gdb"
 875     ;;
 876   frv-*-*)
 877     ;;
 878   moxie-*-*)
 879     noconfigdirs="$noconfigdirs gprof"
 880     ;;
 881   h8300*-*-*)
 882     noconfigdirs="$noconfigdirs target-libgloss"
 883     ;;
 884   h8500-*-*)
 885     noconfigdirs="$noconfigdirs target-libgloss"
 886     ;;
 887   hppa1.1-*-osf* | hppa1.1-*-bsd* )
 888     ;;
 889   hppa*64*-*-linux*)
 890     ;;
 891   hppa*-*-linux*)
 892     ;;
 893   hppa*-*-*elf* | \
 894   hppa*-*-lites* | \
 895   hppa*-*-openbsd* | \
 896   hppa*64*-*-*)
 897     ;;
 898   hppa*-hp-hpux11*)
 899     noconfigdirs="$noconfigdirs ld"
 900     ;;
 901   hppa*-*-pro*)
 902     ;;
 903   hppa*-*-*)
 904     noconfigdirs="$noconfigdirs ld"
 905     ;;
 906   i960-*-*)
 907     noconfigdirs="$noconfigdirs gdb"
 908     ;;
 909   ia64*-*-elf*)
 910     # No gdb support yet.
 911     noconfigdirs="$noconfigdirs readline libgui itcl gdb"
 912     ;;
 913   ia64*-**-hpux*)
 914     # No ld support yet.
 915     noconfigdirs="$noconfigdirs libgui itcl ld"
 916     ;;
 917   ia64*-*-*vms*)
 918     # No gdb or ld support yet.
 919     noconfigdirs="$noconfigdirs readline libgui itcl gdb ld"
 920     ;;
 921   i[[3456789]]86-*-coff | i[[3456789]]86-*-elf)
 922     ;;
 923   i[[3456789]]86-*-linux*)
 924     # This section makes it possible to build newlib natively on linux.
 925     # If we are using a cross compiler then don't configure newlib.
 926     if test x${is_cross_compiler} != xno ; then
 927       noconfigdirs="$noconfigdirs target-newlib"
 928     fi
 929     noconfigdirs="$noconfigdirs target-libgloss"
 930     # If we are not using a cross compiler, do configure newlib.
 931     # Note however, that newlib will only be configured in this situation
 932     # if the --with-newlib option has been given, because otherwise
 933     # 'target-newlib' will appear in skipdirs.
 934     ;;
 935   i[[3456789]]86-w64-mingw*)
 936     noconfigdirs="$noconfigdirs target-libgloss target-newlib"
 937     ;;
 938   i[[3456789]]86-*-mingw*)
 939     target_configdirs="$target_configdirs target-winsup"
 940     noconfigdirs="$noconfigdirs target-libgloss target-newlib"
 941     ;;
 942   x86_64-*-mingw*)
 943     noconfigdirs="$noconfigdirs target-libgloss target-newlib"
 944     ;;
 945   *-*-cygwin*)
 946     target_configdirs="$target_configdirs target-libtermcap target-winsup"
 947     noconfigdirs="$noconfigdirs target-libgloss"
 948     # always build newlib if winsup directory is present.
 949     if test -d "$srcdir/winsup/cygwin"; then
 950       skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 951     elif test -d "$srcdir/newlib"; then
 952       echo "Warning: winsup/cygwin is missing so newlib can't be built."
 953     fi
 954     ;;
 955   i[[3456789]]86-*-interix* )
 956     ;;
 957   i[[3456789]]86-*-pe)
 958     noconfigdirs="$noconfigdirs target-libgloss"
 959     ;;
 960   i[[3456789]]86-*-sco3.2v5*)
 961     # The linker does not yet know about weak symbols in COFF,
 962     # and is not configured to handle mixed ELF and COFF.
 963     noconfigdirs="$noconfigdirs ld target-libgloss"
 964     ;;
 965   i[[3456789]]86-*-sco*)
 966     noconfigdirs="$noconfigdirs gprof target-libgloss"
 967     ;;
 968   i[[3456789]]86-*-solaris2*)
 969     noconfigdirs="$noconfigdirs target-libgloss"
 970     ;;
 971   i[[3456789]]86-*-sysv4*)
 972     noconfigdirs="$noconfigdirs target-libgloss"
 973     ;;
 974   i[[3456789]]86-*-beos*)
 975     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 976     ;;
 977   i[[3456789]]86-*-rdos*)
 978     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 979     ;;
 980   m32r-*-*)
 981     ;;
 982   m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
 983     ;;
 984   m68k-*-elf*)
 985     ;;
 986   m68*-*-* | fido-*-*)
 987     ;;
 988   mmix-*-*)
 989     noconfigdirs="$noconfigdirs gdb"
 990     ;;
 991   mt-*-*)
 992     noconfigdirs="$noconfigdirs sim"
 993     ;;
 994   powerpc-*-aix*)
 995     # copied from rs6000-*-* entry
 996     noconfigdirs="$noconfigdirs gprof target-libgloss target-newlib"
 997     ;;
 998   powerpc*-*-winnt* | powerpc*-*-pe*)
 999     target_configdirs="$target_configdirs target-winsup"
1000     noconfigdirs="$noconfigdirs gdb tcl tk target-libgloss itcl"
1001     # always build newlib.
1002     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
1003     ;;
1004     # This is temporary until we can link against shared libraries
1005   powerpcle-*-solaris*)
1006     noconfigdirs="$noconfigdirs gdb sim tcl tk itcl"
1007     ;;
1008   powerpc-*-beos*)
1009     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
1010     ;;
1011   powerpc-*-eabi)
1012     ;;
1013   powerpc-*-eabi* | powerpcle-*-eabi* | powerpc-*-rtems* )
1014     ;;
1015   rs6000-*-lynxos*)
1016     noconfigdirs="$noconfigdirs target-newlib gprof"
1017     ;;
1018   rs6000-*-aix*)
1019     noconfigdirs="$noconfigdirs gprof target-libgloss target-newlib"
1020     ;;
1021   rs6000-*-*)
1022     noconfigdirs="$noconfigdirs gprof"
1023     ;;
1024   m68k-apollo-*)
1025     noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss"
1026     ;;
1027   microblaze*)
1028     noconfigdirs="$noconfigdirs gprof"
1029     ;;
1030   mips*-sde-elf*)
1031     if test x$with_newlib = xyes; then
1032       noconfigdirs="$noconfigdirs gprof"
1033     fi
1034     ;;
1035   mips*-*-irix5*)
1036     noconfigdirs="$noconfigdirs gprof target-libgloss"
1037     ;;
1038   mips*-*-irix6*)
1039     noconfigdirs="$noconfigdirs gprof target-libgloss"
1040     ;;
1041   mips*-*-bsd*)
1042     noconfigdirs="$noconfigdirs gprof target-libgloss"
1043     ;;
1044   mips*-*-linux*)
1045     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1046     ;;
1047   mips*-*-*)
1048     noconfigdirs="$noconfigdirs gprof"
1049     ;;
1050   sh-*-* | sh64-*-*)
1051     case "${target}" in
1052       sh*-*-elf)
1053          ;;
1054       *)
1055          noconfigdirs="$noconfigdirs target-libgloss" ;;
1056     esac
1057     ;;
1058   sparclet-*-aout* | sparc86x-*-*)
1059     ;;
1060   sparc-*-elf*)
1061     ;;
1062   sparc64-*-elf*)
1063     ;;
1064   sparclite-*-*)
1065     ;;
1066   sparc-*-sunos4*)
1067     if test x${is_cross_compiler} != xno ; then
1068            noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
1069     else
1070            use_gnu_ld=no
1071     fi
1072     ;;
1073   sparc-*-solaris* | sparc64-*-solaris* | sparcv9-*-solaris*)
1074     ;;
1075   tic6x-*-*)
1076     noconfigdirs="$noconfigdirs gdb sim"
1077     ;;
1078   v810-*-*)
1079     noconfigdirs="$noconfigdirs bfd binutils gas gdb ld opcodes target-libgloss"
1080     ;;
1081   vax-*-*)
1082     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1083     ;;
1084   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
1085     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1086     ;;
1087   *-*-lynxos*)
1088     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
1089     ;;
1090   *-*-*)
1091     ;;
1092 esac
1093
1094 # If we aren't building newlib, then don't build libgloss, since libgloss
1095 # depends upon some newlib header files.
1096 case "${noconfigdirs}" in
1097   *target-libgloss*) ;;
1098   *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
1099 esac
1100
1101 # Work in distributions that contain no compiler tools, like Autoconf.
1102 host_makefile_frag=/dev/null
1103 if test -d ${srcdir}/config ; then
1104 case "${host}" in
1105   i[[3456789]]86-*-msdosdjgpp*)
1106     host_makefile_frag="config/mh-djgpp"
1107     ;;
1108   *-cygwin*)
1109     ACX_CHECK_CYGWIN_CAT_WORKS
1110     host_makefile_frag="config/mh-cygwin"
1111     ;;
1112   *-mingw*)
1113     host_makefile_frag="config/mh-mingw"
1114     ;;
1115   *-interix*)
1116     host_makefile_frag="config/mh-interix"
1117     ;;
1118   hppa*-hp-hpux10*)
1119     host_makefile_frag="config/mh-pa-hpux10"
1120     ;;
1121   hppa*-hp-hpux*)
1122     host_makefile_frag="config/mh-pa"
1123     ;;
1124   hppa*-*)
1125     host_makefile_frag="config/mh-pa"
1126     ;;
1127   *-*-darwin*)
1128     host_makefile_frag="config/mh-darwin"
1129     ;;
1130   powerpc-*-aix*)
1131     host_makefile_frag="config/mh-ppc-aix"
1132     ;;
1133   rs6000-*-aix*)
1134     host_makefile_frag="config/mh-ppc-aix"
1135     ;;
1136 esac
1137 fi
1138
1139 if test "${build}" != "${host}" ; then
1140   AR_FOR_BUILD=${AR_FOR_BUILD-ar}
1141   AS_FOR_BUILD=${AS_FOR_BUILD-as}
1142   CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1143   CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
1144   GCJ_FOR_BUILD=${GCJ_FOR_BUILD-gcj}
1145   GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
1146   GOC_FOR_BUILD=${GOC_FOR_BUILD-gccgo}
1147   DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool}
1148   LD_FOR_BUILD=${LD_FOR_BUILD-ld}
1149   NM_FOR_BUILD=${NM_FOR_BUILD-nm}
1150   RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib}
1151   WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres}
1152   WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc}
1153 else
1154   AR_FOR_BUILD="\$(AR)"
1155   AS_FOR_BUILD="\$(AS)"
1156   CC_FOR_BUILD="\$(CC)"
1157   CXX_FOR_BUILD="\$(CXX)"
1158   GCJ_FOR_BUILD="\$(GCJ)"
1159   GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
1160   GOC_FOR_BUILD="\$(GOC)"
1161   DLLTOOL_FOR_BUILD="\$(DLLTOOL)"
1162   LD_FOR_BUILD="\$(LD)"
1163   NM_FOR_BUILD="\$(NM)"
1164   RANLIB_FOR_BUILD="\$(RANLIB)"
1165   WINDRES_FOR_BUILD="\$(WINDRES)"
1166   WINDMC_FOR_BUILD="\$(WINDMC)"
1167 fi
1168
1169 AC_PROG_CC
1170 AC_PROG_CXX
1171
1172 # We must set the default linker to the linker used by gcc for the correct
1173 # operation of libtool.  If LD is not defined and we are using gcc, try to
1174 # set the LD default to the ld used by gcc.
1175 if test -z "$LD"; then
1176   if test "$GCC" = yes; then
1177     case $build in
1178     *-*-mingw*)
1179       gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1180     *)
1181       gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1182     esac
1183     case $gcc_prog_ld in
1184     # Accept absolute paths.
1185     [[\\/]* | [A-Za-z]:[\\/]*)]
1186       LD="$gcc_prog_ld" ;;
1187     esac
1188   fi
1189 fi
1190
1191 ACX_PROG_GNAT
1192 ACX_PROG_CMP_IGNORE_INITIAL
1193
1194 # See if we are building gcc with C++.
1195 AC_ARG_ENABLE(build-with-cxx,
1196 [AS_HELP_STRING([--enable-build-with-cxx],
1197                 [build with C++ compiler instead of C compiler])],
1198 ENABLE_BUILD_WITH_CXX=$enableval,
1199 ENABLE_BUILD_WITH_CXX=no)
1200
1201 # Used for setting $lt_cv_objdir
1202 _LT_CHECK_OBJDIR
1203
1204 # Check for GMP, MPFR and MPC
1205 gmplibs="-lmpc -lmpfr -lgmp"
1206 gmpinc=
1207 have_gmp=no
1208
1209 # Specify a location for mpc
1210 # check for this first so it ends up on the link line before mpfr.
1211 AC_ARG_WITH(mpc,
1212 [AS_HELP_STRING([--with-mpc=PATH],
1213                 [specify prefix directory for installed MPC package.
1214                  Equivalent to --with-mpc-include=PATH/include
1215                  plus --with-mpc-lib=PATH/lib])])
1216 AC_ARG_WITH(mpc-include,
1217 [AS_HELP_STRING([--with-mpc-include=PATH],
1218                 [specify directory for installed MPC include files])])
1219 AC_ARG_WITH(mpc-lib,
1220 [AS_HELP_STRING([--with-mpc-lib=PATH],
1221                 [specify directory for the installed MPC library])])
1222
1223 if test "x$with_mpc" != x; then
1224   gmplibs="-L$with_mpc/lib $gmplibs"
1225   gmpinc="-I$with_mpc/include $gmpinc"
1226 fi
1227 if test "x$with_mpc_include" != x; then
1228   gmpinc="-I$with_mpc_include $gmpinc"
1229 fi
1230 if test "x$with_mpc_lib" != x; then
1231   gmplibs="-L$with_mpc_lib $gmplibs"
1232 fi
1233 if test "x$with_mpc$with_mpc_include$with_mpc_lib" = x && test -d ${srcdir}/mpc; then
1234   gmplibs='-L$$r/$(HOST_SUBDIR)/mpc/src/'"$lt_cv_objdir $gmplibs"
1235   gmpinc='-I$$s/mpc/src '"$gmpinc"
1236   # Do not test the mpc version.  Assume that it is sufficient, since
1237   # it is in the source tree, and the library has not been built yet
1238   # but it would be included on the link line in the version check below
1239   # hence making the test fail.
1240   have_gmp=yes
1241 fi
1242
1243 # Specify a location for mpfr
1244 # check for this first so it ends up on the link line before gmp.
1245 AC_ARG_WITH(mpfr-dir,
1246 [AS_HELP_STRING([--with-mpfr-dir=PATH], [this option has been REMOVED])],
1247 [AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed.
1248 Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH])])
1249
1250 AC_ARG_WITH(mpfr,
1251 [AS_HELP_STRING([--with-mpfr=PATH],
1252                 [specify prefix directory for installed MPFR package.
1253                  Equivalent to --with-mpfr-include=PATH/include
1254                  plus --with-mpfr-lib=PATH/lib])])
1255 AC_ARG_WITH(mpfr-include,
1256 [AS_HELP_STRING([--with-mpfr-include=PATH],
1257                 [specify directory for installed MPFR include files])])
1258 AC_ARG_WITH(mpfr-lib,
1259 [AS_HELP_STRING([--with-mpfr-lib=PATH],
1260                 [specify directory for the installed MPFR library])])
1261
1262 if test "x$with_mpfr" != x; then
1263   gmplibs="-L$with_mpfr/lib $gmplibs"
1264   gmpinc="-I$with_mpfr/include $gmpinc"
1265 fi
1266 if test "x$with_mpfr_include" != x; then
1267   gmpinc="-I$with_mpfr_include $gmpinc"
1268 fi
1269 if test "x$with_mpfr_lib" != x; then
1270   gmplibs="-L$with_mpfr_lib $gmplibs"
1271 fi
1272 if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
1273   gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/'"$lt_cv_objdir $gmplibs"
1274   gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr -I$$s/mpfr '"$gmpinc"
1275   extra_mpc_mpfr_configure_flags='--with-mpfr-include=$$s/mpfr --with-mpfr-lib=$$r/$(HOST_SUBDIR)/mpfr/'"$lt_cv_objdir"
1276   # Do not test the mpfr version.  Assume that it is sufficient, since
1277   # it is in the source tree, and the library has not been built yet
1278   # but it would be included on the link line in the version check below
1279   # hence making the test fail.
1280   have_gmp=yes
1281 fi
1282
1283 # Specify a location for gmp
1284 AC_ARG_WITH(gmp-dir,
1285 [AS_HELP_STRING([--with-gmp-dir=PATH], [this option has been REMOVED])],
1286 [AC_MSG_ERROR([The --with-gmp-dir=PATH option has been removed.
1287 Use --with-gmp=PATH or --with-gmp-include=PATH plus --with-gmp-lib=PATH])])
1288
1289 AC_ARG_WITH(gmp,
1290 [AS_HELP_STRING([--with-gmp=PATH],
1291                 [specify prefix directory for the installed GMP package.
1292                  Equivalent to --with-gmp-include=PATH/include
1293                  plus --with-gmp-lib=PATH/lib])])
1294 AC_ARG_WITH(gmp-include,
1295 [AS_HELP_STRING([--with-gmp-include=PATH],
1296                 [specify directory for installed GMP include files])])
1297 AC_ARG_WITH(gmp-lib,
1298 [AS_HELP_STRING([--with-gmp-lib=PATH],
1299                 [specify directory for the installed GMP library])])
1300
1301
1302 if test "x$with_gmp" != x; then
1303   gmplibs="-L$with_gmp/lib $gmplibs"
1304   gmpinc="-I$with_gmp/include $gmpinc"
1305 fi
1306 if test "x$with_gmp_include" != x; then
1307   gmpinc="-I$with_gmp_include $gmpinc"
1308 fi
1309 if test "x$with_gmp_lib" != x; then
1310   gmplibs="-L$with_gmp_lib $gmplibs"
1311 fi
1312 if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
1313   gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir $gmplibs"
1314   gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
1315   extra_mpfr_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1316   extra_mpc_gmp_configure_flags='--with-gmp-include=$$r/$(HOST_SUBDIR)/gmp --with-gmp-lib=$$r/$(HOST_SUBDIR)/gmp/'"$lt_cv_objdir"
1317   # Do not test the gmp version.  Assume that it is sufficient, since
1318   # it is in the source tree, and the library has not been built yet
1319   # but it would be included on the link line in the version check below
1320   # hence making the test fail.
1321   have_gmp=yes
1322 fi
1323
1324 if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
1325   have_gmp=yes
1326   saved_CFLAGS="$CFLAGS"
1327   CFLAGS="$CFLAGS $gmpinc"
1328   # Check for the recommended and required versions of GMP.
1329   AC_MSG_CHECKING([for the correct version of gmp.h])
1330   AC_TRY_COMPILE([#include "gmp.h"],[
1331   #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1332   #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1333   #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,0)
1334   choke me
1335   #endif
1336   ], [AC_TRY_COMPILE([#include <gmp.h>],[
1337   #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
1338   #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
1339   #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,3,2)
1340   choke me
1341   #endif
1342   ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1343    [AC_MSG_RESULT([no]); have_gmp=no])
1344
1345   # If we have GMP, check the MPFR version.
1346   if test x"$have_gmp" = xyes; then
1347     # Check for the recommended and required versions of MPFR.
1348     AC_MSG_CHECKING([for the correct version of mpfr.h])
1349     AC_TRY_COMPILE([#include <gmp.h>
1350     #include <mpfr.h>],[
1351     #if MPFR_VERSION < MPFR_VERSION_NUM(2,3,1)
1352     choke me
1353     #endif
1354     ], [AC_TRY_COMPILE([#include <gmp.h>
1355     #include <mpfr.h>],[
1356     #if MPFR_VERSION < MPFR_VERSION_NUM(2,4,2)
1357     choke me
1358     #endif
1359     ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1360      [AC_MSG_RESULT([no]); have_gmp=no])
1361   fi
1362
1363   # Check for the MPC header version.
1364   if test x"$have_gmp" = xyes ; then
1365     # Check for the recommended and required versions of MPC.
1366     AC_MSG_CHECKING([for the correct version of mpc.h])
1367     AC_TRY_COMPILE([#include <mpc.h>],[
1368     #if MPC_VERSION < MPC_VERSION_NUM(0,8,0)
1369     choke me
1370     #endif
1371     ], [AC_TRY_COMPILE([#include <mpc.h>],[
1372     #if MPC_VERSION < MPC_VERSION_NUM(0,8,1)
1373     choke me
1374     #endif
1375     ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1376      [AC_MSG_RESULT([no]); have_gmp=no])
1377   fi
1378
1379   # Now check the MPFR library.
1380   if test x"$have_gmp" = xyes; then
1381     saved_LIBS="$LIBS"
1382     LIBS="$LIBS $gmplibs"
1383     AC_MSG_CHECKING([for the correct version of the gmp/mpfr/mpc libraries])
1384     AC_TRY_LINK([#include <mpc.h>],[
1385     mpfr_t n;
1386     mpfr_t x;
1387     mpc_t c;
1388     int t;
1389     mpfr_init (n);
1390     mpfr_init (x);
1391     mpfr_atan2 (n, n, x, GMP_RNDN);
1392     mpfr_erfc (n, x, GMP_RNDN);
1393     mpfr_subnormalize (x, t, GMP_RNDN);
1394     mpfr_clear(n);
1395     mpfr_clear(x);
1396     mpc_init2 (c, 53);
1397     mpc_set_ui_ui (c, 1, 1, MPC_RNDNN);
1398     mpc_cosh (c, c, MPC_RNDNN);
1399     mpc_pow (c, c, c, MPC_RNDNN);
1400     mpc_acosh (c, c, MPC_RNDNN);
1401     mpc_clear (c);
1402     ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1403     LIBS="$saved_LIBS"
1404   fi
1405
1406   CFLAGS="$saved_CFLAGS"
1407
1408 # The library versions listed in the error message below should match
1409 # the HARD-minimums enforced above.
1410   if test x$have_gmp != xyes; then
1411     AC_MSG_ERROR([Building GCC requires GMP 4.2+, MPFR 2.3.1+ and MPC 0.8.0+.
1412 Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
1413 their locations.  Source code for these libraries can be found at
1414 their respective hosting sites as well as at
1415 ftp://gcc.gnu.org/pub/gcc/infrastructure/.  See also
1416 http://gcc.gnu.org/install/prerequisites.html for additional info.  If
1417 you obtained GMP, MPFR and/or MPC from a vendor distribution package,
1418 make sure that you have installed both the libraries and the header
1419 files.  They may be located in separate packages.])
1420   fi
1421 fi
1422
1423 # Flags needed for both GMP, MPFR and/or MPC.
1424 AC_SUBST(gmplibs)
1425 AC_SUBST(gmpinc)
1426 AC_SUBST(extra_mpfr_configure_flags)
1427 AC_SUBST(extra_mpc_gmp_configure_flags)
1428 AC_SUBST(extra_mpc_mpfr_configure_flags)
1429
1430 # Allow host libstdc++ to be specified for static linking with PPL.
1431 AC_ARG_WITH(host-libstdcxx,
1432 [AS_HELP_STRING([--with-host-libstdcxx=L],
1433                 [use linker arguments L to link with libstdc++
1434                  when linking with PPL])])
1435
1436 case $with_host_libstdcxx in
1437   no|yes)
1438     AC_MSG_ERROR([-with-host-libstdcxx needs an argument])
1439     ;;
1440 esac
1441
1442 # Linker flags to use for stage1 or when not boostrapping.
1443 AC_ARG_WITH(stage1-ldflags,
1444 [AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])],
1445 [if test "$withval" = "no" -o "$withval" = "yes"; then
1446    stage1_ldflags=
1447  else
1448    stage1_ldflags=$withval
1449  fi],
1450 [stage1_ldflags=])
1451 AC_SUBST(stage1_ldflags)
1452
1453 # Libraries to use for stage1 or when not bootstrapping.
1454 AC_ARG_WITH(stage1-libs,
1455 [AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])],
1456 [if test "$withval" = "no" -o "$withval" = "yes"; then
1457    stage1_libs=
1458  else
1459    stage1_libs=$withval
1460  fi],
1461 [stage1_libs=$with_host_libstdcxx])
1462 AC_SUBST(stage1_libs)
1463
1464 # Libraries to use for stage2 and later builds.  This defaults to the
1465 # argument passed to --with-host-libstdcxx.
1466 AC_ARG_WITH(boot-libs,
1467 [AS_HELP_STRING([--with-boot-libs=LIBS], [libraries for stage2 and later])],
1468 [if test "$withval" = "no" -o "$withval" = "yes"; then
1469    poststage1_libs=
1470  else
1471    poststage1_libs=$withval
1472  fi],
1473 [poststage1_libs=$with_host_libstdcxx])
1474 AC_SUBST(poststage1_libs)
1475
1476 # Linker flags to use for stage2 and later builds.
1477 AC_ARG_WITH(boot-ldflags,
1478 [AS_HELP_STRING([--with-boot-ldflags=FLAGS],
1479                 [linker flags for stage2 and later])],
1480 [if test "$withval" = "no" -o "$withval" = "yes"; then
1481    poststage1_ldflags=
1482  else
1483    poststage1_ldflags=$withval
1484  fi],
1485 [poststage1_ldflags=
1486  # In stages 2 and 3, default to linking libstdc++ and libgcc
1487  # statically.  But if the user explicitly specified the libraries to
1488  # use, trust that they are doing what they want.
1489  if test "$poststage1_libs" = ""; then
1490    poststage1_ldflags="-static-libstdc++ -static-libgcc"
1491  fi])
1492 AC_SUBST(poststage1_ldflags)
1493
1494 # Check for PPL
1495 ppllibs=
1496 pplinc=
1497 pwllib=
1498
1499 AC_ARG_WITH(ppl,
1500 [AS_HELP_STRING([--with-ppl=PATH],
1501                 [specify prefix directory for the installed PPL package.
1502                  Equivalent to --with-ppl-include=PATH/include
1503                  plus --with-ppl-lib=PATH/lib])])
1504 AC_ARG_WITH(ppl-include,
1505 [AS_HELP_STRING([--with-ppl-include=PATH],
1506                 [specify directory for installed PPL include files])])
1507 AC_ARG_WITH(ppl-lib,
1508 [AS_HELP_STRING([--with-ppl-lib=PATH],
1509                 [specify directory for the installed PPL library])])
1510
1511 AC_ARG_ENABLE(ppl-version-check,
1512 [AS_HELP_STRING([--disable-ppl-version-check],
1513                 [disable check for PPL version])])
1514
1515 case $with_ppl in
1516   yes | no | "")
1517     ;;
1518   *)
1519     ppllibs="-L$with_ppl/lib"
1520     pplinc="-I$with_ppl/include $pplinc"
1521     if test -d "$with_ppl/lib" && test -d "$with_ppl/include"; then
1522       with_ppl=yes
1523     else
1524       AC_MSG_ERROR([cannot find directories "$with_ppl/lib" or "$with_ppl/include"])
1525     fi
1526     ;;
1527 esac
1528
1529 if test x"$with_ppl_include" != x; then
1530   pplinc="-I$with_ppl_include $pplinc"
1531   with_ppl=yes
1532 fi
1533
1534 if test "x$with_ppl_lib" != x; then
1535   ppllibs="-L$with_ppl_lib"
1536   with_ppl=yes
1537 fi
1538
1539 if test x"$with_ppl$with_ppl_include$with_ppl_lib" = x && test -d ${srcdir}/ppl; then
1540   if test x"$enable_watchdog" = xyes; then
1541     pwllib="-lpwl"
1542   fi
1543   ppllibs='-L$$r/$(HOST_SUBDIR)/ppl/interfaces/C/'"$lt_cv_objdir"' -L$$r/$(HOST_SUBDIR)/ppl/src/'"$lt_cv_objdir"
1544   pplinc='-I$$r/$(HOST_SUBDIR)/ppl/src -I$$r/$(HOST_SUBDIR)/ppl/interfaces/C '
1545   enable_ppl_version_check=no
1546   with_ppl=yes
1547 fi
1548
1549 if test "x$with_ppl" != xno; then
1550   if test "x$pwllib" = x; then
1551     saved_LIBS="$LIBS"
1552     LIBS="$LIBS $ppllibs -lstdc++ -lm"
1553     AC_CHECK_LIB(pwl, PWL_handle_timeout, [pwllib="-lpwl"])
1554     LIBS="$saved_LIBS"
1555   fi
1556
1557   ppllibs="$ppllibs -lppl_c -lppl $pwllib -lgmpxx"
1558
1559   if test "$enable_ppl_version_check" != no; then
1560     saved_CFLAGS="$CFLAGS"
1561     CFLAGS="$CFLAGS $pplinc $gmpinc"
1562     AC_MSG_CHECKING([for version 0.11 (revision 0 or later) of PPL])
1563     AC_TRY_COMPILE([#include "ppl_c.h"],[
1564     #if PPL_VERSION_MAJOR != 0 || PPL_VERSION_MINOR < 11
1565     choke me
1566     #endif
1567     ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); ppllibs= ; pplinc= ; with_ppl=no ])
1568     CFLAGS="$saved_CFLAGS"
1569   fi
1570 fi
1571
1572 # Flags needed for PPL
1573 AC_SUBST(ppllibs)
1574 AC_SUBST(pplinc)
1575
1576
1577 # Check for CLOOG
1578
1579 dnl Provide configure switches and initialize clooginc & clooglibs
1580 dnl with user input.
1581 CLOOG_INIT_FLAGS
1582 if test "x$with_ppl" = "xno"; then
1583   dnl Only execute fail-action, if CLooG has been requested.
1584   CLOOG_REQUESTED([graphite_requested=yes], [graphite_requested=no])
1585   if test "${graphite_requested}" = yes; then
1586     AC_MSG_ERROR([Unable to find a usable PPL.  See config.log for details.])
1587   fi
1588   with_cloog=no
1589 fi
1590 if test "x${with_cloog}" = x && test "x${with_cloog_include}" = x \
1591   && test "x${with_cloog_lib}" = x && test -d ${srcdir}/cloog; then
1592   clooglibs='-L$$r/$(HOST_SUBDIR)/cloog/'"$lt_cv_objdir"' '
1593   clooginc='-I$$r/$(HOST_SUBDIR)/cloog/include -I$$s/cloog/include '
1594 fi
1595 if test "x$with_cloog" != "xno"; then
1596   dnl The minimal version of CLooG required for Graphite.
1597   dnl
1598   dnl If we use CLooG-Legacy, the provided version information is
1599   dnl ignored.
1600   CLOOG_CHECK_VERSION(0,16,1)
1601
1602   dnl Only execute fail-action, if CLooG has been requested.
1603   CLOOG_IF_FAILED([
1604     AC_MSG_ERROR([Unable to find a usable CLooG.  See config.log for details.])])
1605 fi
1606
1607 # Check for LTO support.
1608 AC_ARG_ENABLE(lto,
1609 [AS_HELP_STRING([--enable-lto], [enable link time optimization support])],
1610 enable_lto=$enableval,
1611 enable_lto=yes; default_enable_lto=yes)
1612
1613 ACX_ELF_TARGET_IFELSE([# ELF platforms build the lto-plugin always.
1614   build_lto_plugin=yes
1615 ],[if test x"$default_enable_lto" = x"yes" ; then
1616     case $target in
1617       *-apple-darwin9* | *-cygwin* | *-mingw*) ;;
1618       # On other non-ELF platforms, LTO has yet to be validated.
1619       *) enable_lto=no ;;
1620     esac
1621   else
1622   # Apart from ELF platforms, only Windows and Darwin support LTO so far.
1623   # It would also be nice to check the binutils support, but we don't
1624   # have gcc_GAS_CHECK_FEATURE available here.  For now, we'll just
1625   # warn during gcc/ subconfigure; unless you're bootstrapping with
1626   # -flto it won't be needed until after installation anyway.
1627     case $target in
1628       *-cygwin* | *-mingw* | *-apple-darwin*) ;;
1629       *) if test x"$enable_lto" = x"yes"; then
1630         AC_MSG_ERROR([LTO support is not enabled for this target.])
1631         fi
1632       ;;
1633     esac
1634   fi
1635   # Among non-ELF, only Windows platforms support the lto-plugin so far.
1636   # Build it unless LTO was explicitly disabled.
1637   case $target in
1638     *-cygwin* | *-mingw*) build_lto_plugin=$enable_lto ;;
1639     *) ;;
1640   esac
1641 ])
1642
1643
1644 # By default, C is the only stage 1 language.
1645 stage1_languages=,c,
1646
1647 # Target libraries that we bootstrap.
1648 bootstrap_target_libs=,target-libgcc,
1649
1650 # Figure out what language subdirectories are present.
1651 # Look if the user specified --enable-languages="..."; if not, use
1652 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1653 # go away some day.
1654 # NB:  embedded tabs in this IF block -- do not untabify
1655 if test -d ${srcdir}/gcc; then
1656   if test x"${enable_languages+set}" != xset; then
1657     if test x"${LANGUAGES+set}" = xset; then
1658       enable_languages="${LANGUAGES}"
1659         echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1660     else
1661       enable_languages=all
1662     fi
1663   else
1664     if test x"${enable_languages}" = x ||
1665        test x"${enable_languages}" = xyes;
1666        then
1667       echo configure.in: --enable-languages needs at least one language argument 1>&2
1668       exit 1
1669     fi
1670   fi
1671   enable_languages=`echo "${enable_languages}" | sed -e 's/[[   ,]][[   ,]]*/,/g' -e 's/,$//'`
1672
1673   # 'f95' is the old name for the 'fortran' language. We issue a warning
1674   # and make the substitution.
1675   case ,${enable_languages}, in
1676     *,f95,*)
1677       echo configure.in: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
1678       enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1679       ;;
1680   esac
1681
1682   # First scan to see if an enabled language requires some other language.
1683   # We assume that a given config-lang.in will list all the language
1684   # front ends it requires, even if some are required indirectly.
1685   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1686     case ${lang_frag} in
1687       ..) ;;
1688       # The odd quoting in the next line works around
1689       # an apparent bug in bash 1.12 on linux.
1690       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1691       *)
1692         # From the config-lang.in, get $language, $lang_requires, and
1693         # $lang_requires_boot_languages.
1694         language=
1695         lang_requires=
1696         lang_requires_boot_languages=
1697         . ${lang_frag}
1698         for other in ${lang_requires} ${lang_requires_boot_languages}; do
1699           case ,${enable_languages}, in
1700             *,$other,*) ;;
1701             *,all,*) ;;
1702             *,$language,*)
1703               echo " \`$other' language required by \`$language'; enabling" 1>&2
1704               enable_languages="${enable_languages},${other}"
1705               ;;
1706           esac
1707         done
1708         for other in ${lang_requires_boot_languages} ; do
1709           if test "$other" != "c"; then
1710             case ,${enable_stage1_languages}, in
1711               *,$other,*) ;;
1712               *,all,*) ;;
1713               *)
1714                 case ,${enable_languages}, in
1715                   *,$language,*)
1716                     echo " '$other' language required by '$language' in stage 1; enabling" 1>&2
1717                     enable_stage1_languages="$enable_stage1_languages,${other}"
1718                     ;;
1719                 esac
1720                 ;;
1721             esac
1722           fi
1723         done
1724         ;;
1725     esac
1726   done
1727
1728   new_enable_languages=,c,
1729
1730   # If LTO is enabled, add the LTO front end.
1731   extra_host_libiberty_configure_flags=
1732   if test "$enable_lto" = "yes" ; then
1733     case ,${enable_languages}, in
1734       *,lto,*) ;;
1735       *) enable_languages="${enable_languages},lto" ;;
1736     esac
1737     if test "${build_lto_plugin}" = "yes" ; then
1738       configdirs="$configdirs lto-plugin"
1739       extra_host_libiberty_configure_flags=--enable-shared
1740     fi
1741   fi
1742   AC_SUBST(extra_host_libiberty_configure_flags)
1743
1744   missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
1745   potential_languages=,c,
1746
1747   enabled_target_libs=
1748   disabled_target_libs=
1749
1750   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1751     case ${lang_frag} in
1752       ..) ;;
1753       # The odd quoting in the next line works around
1754       # an apparent bug in bash 1.12 on linux.
1755       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1756       *)
1757         # From the config-lang.in, get $language, $target_libs,
1758         # $lang_dirs, $boot_language, and $build_by_default
1759         language=
1760         target_libs=
1761         lang_dirs=
1762         subdir_requires=
1763         boot_language=no
1764         build_by_default=yes
1765         . ${lang_frag}
1766         if test x${language} = x; then
1767           echo "${lang_frag} doesn't set \$language." 1>&2
1768           exit 1
1769         fi
1770
1771         if test "$language" = "c++" \
1772            && test "$ENABLE_BUILD_WITH_CXX" = "yes"; then
1773           boot_language=yes
1774         fi
1775
1776         case ,${enable_languages}, in
1777           *,${language},*)
1778             # Language was explicitly selected; include it.
1779             add_this_lang=yes
1780             ;;
1781           *,all,*)
1782             # 'all' was selected, select it if it is a default language
1783             add_this_lang=${build_by_default}
1784             ;;
1785           *)
1786             add_this_lang=no
1787             ;;
1788         esac
1789
1790         # Disable languages that need other directories if these aren't available.
1791         for i in $subdir_requires; do
1792           test -f "$srcdir/gcc/$i/config-lang.in" && continue
1793           case ,${enable_languages}, in
1794             *,${language},*)
1795               # Specifically requested language; tell them.
1796               AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
1797               ;;
1798             *)
1799               # Silently disable.
1800               add_this_lang=unsupported
1801               ;;
1802           esac
1803         done
1804
1805         # Disable Ada if no preexisting GNAT is available.
1806         case ,${enable_languages},:${language}:${have_gnat} in
1807           *,${language},*:ada:no)
1808             # Specifically requested language; tell them.
1809             AC_MSG_ERROR([GNAT is required to build $language])
1810             ;;
1811           *:ada:no)
1812             # Silently disable.
1813             add_this_lang=unsupported
1814             ;;
1815         esac
1816
1817         # Disable a language that is unsupported by the target.
1818         case " $unsupported_languages " in
1819           *" $language "*)
1820             add_this_lang=unsupported
1821             ;;
1822         esac
1823
1824         case $add_this_lang in
1825           unsupported)
1826             # Remove language-dependent dirs.
1827             disabled_target_libs="$disabled_target_libs $target_libs"
1828             noconfigdirs="$noconfigdirs $lang_dirs"
1829             ;;
1830           no)
1831             # Remove language-dependent dirs; still show language as supported.
1832             disabled_target_libs="$disabled_target_libs $target_libs"
1833             noconfigdirs="$noconfigdirs $lang_dirs"
1834             potential_languages="${potential_languages}${language},"
1835             ;;
1836           yes)
1837             new_enable_languages="${new_enable_languages}${language},"
1838             potential_languages="${potential_languages}${language},"
1839             missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
1840             enabled_target_libs="$enabled_target_libs $target_libs"
1841             case "${boot_language}:,$enable_stage1_languages," in
1842               yes:* | *:*,$language,* | *:*,yes, | *:*,all,)
1843                 # Add to (comma-separated) list of stage 1 languages.
1844                 case ",$stage1_languages," in
1845                   *,$language,* | ,yes, | ,all,) ;;
1846                   *) stage1_languages="${stage1_languages}${language}," ;;
1847                 esac
1848                 # We need to bootstrap any supporting libraries.
1849                 bootstrap_target_libs="${bootstrap_target_libs}${target_libs},"
1850                 ;;
1851             esac
1852             ;;
1853         esac
1854         ;;
1855     esac
1856   done
1857
1858   # Add target libraries which are only needed for disabled languages
1859   # to noconfigdirs.
1860   if test -n "$disabled_target_libs"; then
1861     for dir in $disabled_target_libs; do
1862       case " $enabled_target_libs " in
1863       *" ${dir} "*) ;;
1864       *) noconfigdirs="$noconfigdirs $dir" ;;
1865       esac
1866     done
1867   fi
1868
1869   AC_ARG_ENABLE(stage1-languages,
1870   [AS_HELP_STRING([[--enable-stage1-languages[=all]]],
1871                   [choose additional languages to build during
1872                   stage1.  Mostly useful for compiler development])],
1873   [case ,${enable_stage1_languages}, in
1874     ,no,|,,)
1875       # Set it to something that will have no effect in the loop below
1876       enable_stage1_languages=c ;;
1877     ,yes,)
1878       enable_stage1_languages=`echo $new_enable_languages | \
1879         sed -e "s/^,//" -e "s/,$//" ` ;;
1880     *,all,*)
1881       enable_stage1_languages=`echo ,$enable_stage1_languages, | \
1882         sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
1883   esac
1884
1885   # Add "good" languages from enable_stage1_languages to stage1_languages,
1886   # while "bad" languages go in missing_languages.  Leave no duplicates.
1887   for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
1888     case $potential_languages in
1889       *,$i,*)
1890         case $stage1_languages in
1891           *,$i,*) ;;
1892           *) stage1_languages="$stage1_languages$i," ;;
1893         esac ;;
1894       *)
1895         case $missing_languages in
1896           *,$i,*) ;;
1897           *) missing_languages="$missing_languages$i," ;;
1898         esac ;;
1899      esac
1900   done])
1901
1902   # Remove leading/trailing commas that were added for simplicity
1903   potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
1904   missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
1905   stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
1906   new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
1907
1908   if test "x$missing_languages" != x; then
1909     AC_MSG_ERROR([
1910 The following requested languages could not be built: ${missing_languages}
1911 Supported languages are: ${potential_languages}])
1912   fi
1913   if test "x$new_enable_languages" != "x$enable_languages"; then
1914     echo The following languages will be built: ${new_enable_languages}
1915     enable_languages="$new_enable_languages"
1916   fi
1917
1918   AC_SUBST(stage1_languages)
1919   ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" `
1920 fi
1921
1922 # Handle --disable-<component> generically.
1923 for dir in $configdirs $build_configdirs $target_configdirs ; do
1924   dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
1925   varname=`echo $dirname | sed -e s/+/_/g`
1926   if eval test x\${enable_${varname}} "=" xno ; then
1927     noconfigdirs="$noconfigdirs $dir"
1928   fi
1929 done
1930
1931 # Check for Boehm's garbage collector
1932 AC_ARG_ENABLE(objc-gc,
1933 [AS_HELP_STRING([--enable-objc-gc],
1934                 [enable use of Boehm's garbage collector with the
1935                  GNU Objective-C runtime])],
1936 [case ,${enable_languages},:${enable_objc_gc}:${noconfigdirs} in
1937   *,objc,*:*:yes:*target-boehm-gc*)
1938     AC_MSG_ERROR([Boehm's garbage collector was requested yet not supported in this configuration])
1939     ;;
1940 esac])
1941
1942 # Make sure we only build Boehm's garbage collector if required.
1943 case ,${enable_languages},:${enable_objc_gc} in
1944   *,objc,*:yes)
1945     # Keep target-boehm-gc if requested for Objective-C.
1946     ;;
1947   *)
1948     # Otherwise remove target-boehm-gc depending on target-libjava.
1949     if echo " ${noconfigdirs} " | grep "target-libjava" >/dev/null 2>&1; then
1950       noconfigdirs="$noconfigdirs target-boehm-gc"
1951     fi
1952     ;;
1953 esac
1954
1955 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
1956 # $build_configdirs and $target_configdirs.
1957 # If we have the source for $noconfigdirs entries, add them to $notsupp.
1958
1959 notsupp=""
1960 for dir in . $skipdirs $noconfigdirs ; do
1961   dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
1962   if test $dir != .  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1963     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
1964     if test -r $srcdir/$dirname/configure ; then
1965       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1966         true
1967       else
1968         notsupp="$notsupp $dir"
1969       fi
1970     fi
1971   fi
1972   if test $dir != .  && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1973     build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
1974     if test -r $srcdir/$dirname/configure ; then
1975       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1976         true
1977       else
1978         notsupp="$notsupp $dir"
1979       fi
1980     fi
1981   fi
1982   if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1983     target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
1984     if test -r $srcdir/$dirname/configure ; then
1985       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1986         true
1987       else
1988         notsupp="$notsupp $dir"
1989       fi
1990     fi
1991   fi
1992 done
1993
1994 # Sometimes the tools are distributed with libiberty but with no other
1995 # libraries.  In that case, we don't want to build target-libiberty.
1996 # Don't let libgcc imply libiberty either.
1997 if test -n "${target_configdirs}" ; then
1998   libgcc=
1999   others=
2000   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
2001     if test "$i" = "libgcc"; then
2002       libgcc=target-libgcc
2003     elif test "$i" != "libiberty" ; then
2004       if test -r $srcdir/$i/configure ; then
2005         others=yes;
2006         break;
2007       fi
2008     fi
2009   done
2010   if test -z "${others}" ; then
2011     target_configdirs=$libgcc
2012   fi
2013 fi
2014
2015 # Quietly strip out all directories which aren't configurable in this tree.
2016 # This relies on all configurable subdirectories being autoconfiscated, which
2017 # is now the case.
2018 build_configdirs_all="$build_configdirs"
2019 build_configdirs=
2020 for i in ${build_configdirs_all} ; do
2021   j=`echo $i | sed -e s/build-//g`
2022   if test -f ${srcdir}/$j/configure ; then
2023     build_configdirs="${build_configdirs} $i"
2024   fi
2025 done
2026
2027 configdirs_all="$configdirs"
2028 configdirs=
2029 for i in ${configdirs_all} ; do
2030   if test -f ${srcdir}/$i/configure ; then
2031     configdirs="${configdirs} $i"
2032   fi
2033 done
2034
2035 target_configdirs_all="$target_configdirs"
2036 target_configdirs=
2037 for i in ${target_configdirs_all} ; do
2038   j=`echo $i | sed -e s/target-//g`
2039   if test -f ${srcdir}/$j/configure ; then
2040     target_configdirs="${target_configdirs} $i"
2041   fi
2042 done
2043
2044 # Produce a warning message for the subdirs we can't configure.
2045 # This isn't especially interesting in the Cygnus tree, but in the individual
2046 # FSF releases, it's important to let people know when their machine isn't
2047 # supported by the one or two programs in a package.
2048
2049 if test -n "${notsupp}" && test -z "${norecursion}" ; then
2050   # If $appdirs is non-empty, at least one of those directories must still
2051   # be configured, or we error out.  (E.g., if the gas release supports a
2052   # specified target in some subdirs but not the gas subdir, we shouldn't
2053   # pretend that all is well.)
2054   if test -n "$appdirs" ; then
2055     for dir in $appdirs ; do
2056       if test -r $dir/Makefile.in ; then
2057         if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
2058           appdirs=""
2059           break
2060         fi
2061         if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
2062           appdirs=""
2063           break
2064         fi
2065       fi
2066     done
2067     if test -n "$appdirs" ; then
2068       echo "*** This configuration is not supported by this package." 1>&2
2069       exit 1
2070     fi
2071   fi
2072   # Okay, some application will build, or we don't care to check.  Still
2073   # notify of subdirs not getting built.
2074   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
2075   echo "    ${notsupp}" 1>&2
2076   echo "    (Any other directories should still work fine.)" 1>&2
2077 fi
2078
2079 case "$host" in
2080   *msdosdjgpp*)
2081     enable_gdbtk=no ;;
2082 esac
2083
2084 # To find our prefix, in gcc_cv_tool_prefix.
2085 ACX_TOOL_DIRS
2086
2087 copy_dirs=
2088
2089 AC_ARG_WITH([build-sysroot],
2090   [AS_HELP_STRING([--with-build-sysroot=SYSROOT],
2091                   [use sysroot as the system root during the build])],
2092   [if test x"$withval" != x ; then
2093      SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
2094    fi],
2095   [SYSROOT_CFLAGS_FOR_TARGET=])
2096 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
2097
2098 AC_ARG_WITH([debug-prefix-map],
2099   [AS_HELP_STRING([--with-debug-prefix-map='A=B C=D ...'],
2100                   [map A to B, C to D ... in debug information])],
2101   [if test x"$withval" != x; then
2102      DEBUG_PREFIX_CFLAGS_FOR_TARGET=
2103      for debug_map in $withval; do
2104        DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map"
2105      done
2106    fi],
2107   [DEBUG_PREFIX_CFLAGS_FOR_TARGET=])
2108 AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
2109
2110 # During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
2111 # might be empty or "-g".  We don't require a C++ compiler, so CXXFLAGS
2112 # might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
2113 # We want to ensure that TARGET libraries (which we know are built with
2114 # gcc) are built with "-O2 -g", so include those options when setting
2115 # CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
2116 if test "x$CFLAGS_FOR_TARGET" = x; then
2117   CFLAGS_FOR_TARGET=$CFLAGS
2118   case " $CFLAGS " in
2119     *" -O2 "*) ;;
2120     *) CFLAGS_FOR_TARGET="-O2 $CFLAGS" ;;
2121   esac
2122   case " $CFLAGS " in
2123     *" -g "* | *" -g3 "*) ;;
2124     *) CFLAGS_FOR_TARGET="-g $CFLAGS" ;;
2125   esac
2126 fi
2127 AC_SUBST(CFLAGS_FOR_TARGET)
2128
2129 if test "x$CXXFLAGS_FOR_TARGET" = x; then
2130   CXXFLAGS_FOR_TARGET=$CXXFLAGS
2131   case " $CXXFLAGS " in
2132     *" -O2 "*) ;;
2133     *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS" ;;
2134   esac
2135   case " $CXXFLAGS " in
2136     *" -g "* | *" -g3 "*) ;;
2137     *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS" ;;
2138   esac
2139 fi
2140 AC_SUBST(CXXFLAGS_FOR_TARGET)
2141
2142 # Handle --with-headers=XXX.  If the value is not "yes", the contents of
2143 # the named directory are copied to $(tooldir)/sys-include.
2144 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
2145   if test x${is_cross_compiler} = xno ; then
2146     echo 1>&2 '***' --with-headers is only supported when cross compiling
2147     exit 1
2148   fi
2149   if test x"${with_headers}" != xyes ; then
2150     x=${gcc_cv_tool_prefix}
2151     copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
2152   fi
2153 fi
2154
2155 # Handle --with-libs=XXX.  If the value is not "yes", the contents of
2156 # the name directories are copied to $(tooldir)/lib.  Multiple directories
2157 # are permitted.
2158 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
2159   if test x${is_cross_compiler} = xno ; then
2160     echo 1>&2 '***' --with-libs is only supported when cross compiling
2161     exit 1
2162   fi
2163   if test x"${with_libs}" != xyes ; then
2164     # Copy the libraries in reverse order, so that files in the first named
2165     # library override files in subsequent libraries.
2166     x=${gcc_cv_tool_prefix}
2167     for l in ${with_libs}; do
2168       copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
2169     done
2170   fi
2171 fi
2172
2173 # Set with_gnu_as, with_gnu_ld, and with_system_zlib as appropriate.
2174 #
2175 # This is done by determining whether or not the appropriate directory
2176 # is available, and by checking whether or not specific configurations
2177 # have requested that this magic not happen.
2178 #
2179 # The command line options always override the explicit settings in
2180 # configure.in, and the settings in configure.in override this magic.
2181 #
2182 # If the default for a toolchain is to use GNU as and ld, and you don't
2183 # want to do that, then you should use the --without-gnu-as and
2184 # --without-gnu-ld options for the configure script.  Similarly, if
2185 # the default is to use the included zlib and you don't want to do that,
2186 # you should use the --with-system-zlib option for the configure script.
2187
2188 if test x${use_gnu_as} = x &&
2189    echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
2190   with_gnu_as=yes
2191   extra_host_args="$extra_host_args --with-gnu-as"
2192 fi
2193
2194 if test x${use_gnu_ld} = x &&
2195    echo " ${configdirs} " | egrep " (go)?ld " > /dev/null 2>&1 ; then
2196   with_gnu_ld=yes
2197   extra_host_args="$extra_host_args --with-gnu-ld"
2198 fi
2199
2200 if test x${use_included_zlib} = x &&
2201    echo " ${configdirs} " | grep " zlib " > /dev/null 2>&1 ; then
2202   :
2203 else
2204   with_system_zlib=yes
2205   extra_host_args="$extra_host_args --with-system-zlib"
2206 fi
2207
2208 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
2209 # can detect this case.
2210
2211 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
2212   with_newlib=yes
2213   extra_host_args="$extra_host_args --with-newlib"
2214 fi
2215
2216 # Handle ${copy_dirs}
2217 set fnord ${copy_dirs}
2218 shift
2219 while test $# != 0 ; do
2220   if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
2221     :
2222   else
2223     echo Copying $1 to $2
2224
2225     # Use the install script to create the directory and all required
2226     # parent directories.
2227     if test -d $2 ; then
2228       :
2229     else
2230       echo >config.temp
2231       ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
2232     fi
2233
2234     # Copy the directory, assuming we have tar.
2235     # FIXME: Should we use B in the second tar?  Not all systems support it.
2236     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
2237
2238     # It is the responsibility of the user to correctly adjust all
2239     # symlinks.  If somebody can figure out how to handle them correctly
2240     # here, feel free to add the code.
2241
2242     echo $1 > $2/COPIED
2243   fi
2244   shift; shift
2245 done
2246
2247 # Determine a target-dependent exec_prefix that the installed
2248 # gcc will search in.  Keep this list sorted by triplet, with
2249 # the *-*-osname triplets last.
2250 md_exec_prefix=
2251 case "${target}" in
2252   i[[34567]]86-pc-msdosdjgpp*)
2253     md_exec_prefix=/dev/env/DJDIR/bin
2254     ;;
2255   *-*-hpux* | \
2256   *-*-nto-qnx* | \
2257   *-*-solaris2*)
2258     md_exec_prefix=/usr/ccs/bin
2259     ;;
2260 esac
2261
2262 extra_arflags_for_target=
2263 extra_nmflags_for_target=
2264 extra_ranlibflags_for_target=
2265 target_makefile_frag=/dev/null
2266 case "${target}" in
2267   spu-*-*)
2268     target_makefile_frag="config/mt-spu"
2269     ;;
2270   mips*-sde-elf*)
2271     target_makefile_frag="config/mt-sde"
2272     ;;
2273   mipsisa*-*-elfoabi*)
2274     target_makefile_frag="config/mt-mips-elfoabi"
2275     ;;
2276   mips*-*-*linux* | mips*-*-gnu*)
2277     target_makefile_frag="config/mt-mips-gnu"
2278     ;;
2279   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
2280     target_makefile_frag="config/mt-gnu"
2281     ;;
2282   *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
2283     # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
2284     # commands to handle both 32-bit and 64-bit objects.  These flags are
2285     # harmless if we're using GNU nm or ar.
2286     extra_arflags_for_target=" -X32_64"
2287     extra_nmflags_for_target=" -B -X32_64"
2288     ;;
2289   *-*-darwin[[3-9]]*)
2290     # ranlib before Darwin10 requires the -c flag to look at common symbols.
2291     extra_ranlibflags_for_target=" -c"
2292     ;;
2293 esac
2294
2295 alphaieee_frag=/dev/null
2296 case $target in
2297   alpha*-*-*)
2298     # This just makes sure to use the -mieee option to build target libs.
2299     # This should probably be set individually by each library.
2300     alphaieee_frag="config/mt-alphaieee"
2301     ;;
2302 esac
2303
2304 # If --enable-target-optspace always use -Os instead of -O2 to build
2305 # the target libraries, similarly if it is not specified, use -Os
2306 # on selected platforms.
2307 ospace_frag=/dev/null
2308 case "${enable_target_optspace}:${target}" in
2309   yes:*)
2310     ospace_frag="config/mt-ospace"
2311     ;;
2312   :d30v-*)
2313     ospace_frag="config/mt-d30v"
2314     ;;
2315   :m32r-* | :d10v-* | :fr30-*)
2316     ospace_frag="config/mt-ospace"
2317     ;;
2318   no:* | :*)
2319     ;;
2320   *)
2321     echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
2322     ;;
2323 esac
2324
2325 # Default to using --with-stabs for certain targets.
2326 if test x${with_stabs} = x ; then
2327   case "${target}" in
2328   mips*-*-irix[[56]]*)
2329     ;;
2330   mips*-*-* | alpha*-*-osf*)
2331     with_stabs=yes;
2332     extra_host_args="${extra_host_args} --with-stabs"
2333     ;;
2334   esac
2335 fi
2336
2337 # hpux11 in 64bit mode has libraries in a weird place.  Arrange to find
2338 # them automatically.
2339 case "${host}" in
2340   hppa*64*-*-hpux11*)
2341     extra_host_args="$extra_host_args -x-libraries=/usr/lib/pa20_64 -x-includes=/usr/X11R6/include"
2342     ;;
2343 esac
2344
2345 # Some systems (e.g., one of the i386-aix systems the gas testers are
2346 # using) don't handle "\$" correctly, so don't use it here.
2347 tooldir='${exec_prefix}'/${target_noncanonical}
2348 build_tooldir=${tooldir}
2349
2350 # Create a .gdbinit file which runs the one in srcdir
2351 # and tells GDB to look there for source files.
2352
2353 if test -r ${srcdir}/.gdbinit ; then
2354   case ${srcdir} in
2355     .) ;;
2356     *) cat > ./.gdbinit <<EOF
2357 # ${NO_EDIT}
2358 dir ${srcdir}
2359 dir .
2360 source ${srcdir}/.gdbinit
2361 EOF
2362     ;;
2363   esac
2364 fi
2365
2366 # Make sure that the compiler is able to generate an executable.  If it
2367 # can't, we are probably in trouble.  We don't care whether we can run the
2368 # executable--we might be using a cross compiler--we only care whether it
2369 # can be created.  At this point the main configure script has set CC.
2370 we_are_ok=no
2371 echo "int main () { return 0; }" > conftest.c
2372 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
2373 if test $? = 0 ; then
2374   if test -s conftest || test -s conftest.exe ; then
2375     we_are_ok=yes
2376   fi
2377 fi
2378 case $we_are_ok in
2379   no)
2380     echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
2381     echo 1>&2 "*** You must set the environment variable CC to a working compiler."
2382     rm -f conftest*
2383     exit 1
2384     ;;
2385 esac
2386 rm -f conftest*
2387
2388 # The Solaris /usr/ucb/cc compiler does not appear to work.
2389 case "${host}" in
2390   sparc-sun-solaris2*)
2391       CCBASE="`echo ${CC-cc} | sed 's/ .*$//'`"
2392       if test "`type $CCBASE | sed 's/^[[^/]]*//'`" = "/usr/ucb/cc" ; then
2393           could_use=
2394           test -d /opt/SUNWspro/bin && could_use="/opt/SUNWspro/bin"
2395           if test -d /opt/cygnus/bin ; then
2396               if test "$could_use" = "" ; then
2397                   could_use="/opt/cygnus/bin"
2398               else
2399                   could_use="$could_use or /opt/cygnus/bin"
2400               fi
2401           fi
2402         if test "$could_use" = "" ; then
2403             echo "Warning: compilation may fail because you're using"
2404             echo "/usr/ucb/cc.  You should change your PATH or CC "
2405             echo "variable and rerun configure."
2406         else
2407             echo "Warning: compilation may fail because you're using"
2408             echo "/usr/ucb/cc, when you should use the C compiler from"
2409             echo "$could_use.  You should change your"
2410             echo "PATH or CC variable and rerun configure."
2411         fi
2412       fi
2413   ;;
2414 esac
2415
2416 # Decide which environment variable is used to find dynamic libraries.
2417 case "${host}" in
2418   *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
2419   *-*-darwin*) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
2420   *-*-mingw* | *-*-cygwin ) RPATH_ENVVAR=PATH ;;
2421   *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
2422 esac
2423
2424 # On systems where the dynamic library environment variable is PATH,
2425 # gcc/ will put dynamic libraries into a subdirectory to avoid adding
2426 # built executables to PATH.
2427 if test "$RPATH_ENVVAR" = PATH; then
2428   GCC_SHLIB_SUBDIR=/shlib
2429 else
2430   GCC_SHLIB_SUBDIR=
2431 fi
2432
2433 # Record target_configdirs and the configure arguments for target and
2434 # build configuration in Makefile.
2435 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
2436 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
2437
2438 # If we are building libgomp, bootstrap it.
2439 if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then
2440   bootstrap_target_libs=${bootstrap_target_libs}target-libgomp,
2441 fi
2442
2443 # Determine whether gdb needs tk/tcl or not.
2444 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
2445 # and in that case we want gdb to be built without tk.  Ugh!
2446 # In fact I believe gdb is the *only* package directly dependent on tk,
2447 # so we should be able to put the 'maybe's in unconditionally and
2448 # leave out the maybe dependencies when enable_gdbtk is false.  I'm not
2449 # 100% sure that that's safe though.
2450
2451 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
2452 case "$enable_gdbtk" in
2453   no)
2454     GDB_TK="" ;;
2455   yes)
2456     GDB_TK="${gdb_tk}" ;;
2457   *)
2458     # Only add the dependency on gdbtk when GDBtk is part of the gdb
2459     # distro.  Eventually someone will fix this and move Insight, nee
2460     # gdbtk to a separate directory.
2461     if test -d ${srcdir}/gdb/gdbtk ; then
2462       GDB_TK="${gdb_tk}"
2463     else
2464       GDB_TK=""
2465     fi
2466     ;;
2467 esac
2468 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
2469 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
2470
2471 # Strip out unwanted targets.
2472
2473 # While at that, we remove Makefiles if we were started for recursive
2474 # configuration, so that the top-level Makefile reconfigures them,
2475 # like we used to do when configure itself was recursive.
2476
2477 # Loop over modules.  We used to use the "$extrasub" feature from Autoconf
2478 # but now we're fixing up the Makefile ourselves with the additional
2479 # commands passed to AC_CONFIG_FILES.  Use separate variables
2480 # extrasub-{build,host,target} not because there is any reason to split
2481 # the substitutions up that way, but only to remain below the limit of
2482 # 99 commands in a script, for HP-UX sed.
2483 # Do not nest @if/@endif pairs, because configure will not warn you at all.
2484
2485 AC_ARG_ENABLE([bootstrap],
2486 [AS_HELP_STRING([--enable-bootstrap],
2487                 [enable bootstrapping @<:@yes if native build@:>@])],,
2488 enable_bootstrap=default)
2489
2490 # Issue errors and warnings for invalid/strange bootstrap combinations.
2491 case "$configdirs" in
2492   *gcc*) have_compiler=yes ;;
2493   *) have_compiler=no ;;
2494 esac
2495
2496 case "$have_compiler:$host:$target:$enable_bootstrap" in
2497   *:*:*:no) ;;
2498
2499   # Default behavior.  Enable bootstrap if we have a compiler
2500   # and we are in a native configuration.
2501   yes:$build:$build:default)
2502     enable_bootstrap=yes ;;
2503
2504   *:*:*:default)
2505     enable_bootstrap=no ;;
2506
2507   # We have a compiler and we are in a native configuration, bootstrap is ok
2508   yes:$build:$build:yes)
2509     ;;
2510
2511   # Other configurations, but we have a compiler.  Assume the user knows
2512   # what he's doing.
2513   yes:*:*:yes)
2514     AC_MSG_WARN([trying to bootstrap a cross compiler])
2515     ;;
2516
2517   # No compiler: if they passed --enable-bootstrap explicitly, fail
2518   no:*:*:yes)
2519     AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
2520
2521   # Fail if wrong command line
2522   *)
2523     AC_MSG_ERROR([invalid option for --enable-bootstrap])
2524     ;;
2525 esac
2526
2527 case ",$enable_languages,:$ENABLE_BUILD_WITH_CXX:$enable_bootstrap" in
2528   *,c++,*:yes:yes) ;;
2529   *:yes:yes)
2530     AC_MSG_ERROR([bootstrapping with --enable-build-with-cxx requires c++ in --enable-languages])
2531     ;;
2532 esac
2533
2534 case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
2535   yes:yes:*\ gold\ *:*,c++,*) ;;
2536   yes:yes:*\ gold\ *:*)
2537     AC_MSG_ERROR([in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages])
2538     ;;
2539 esac
2540
2541 # Adjust the toplevel makefile according to whether bootstrap was selected.
2542 case $enable_bootstrap in
2543   yes)
2544     bootstrap_suffix=bootstrap
2545     BUILD_CONFIG=bootstrap-debug
2546     ;;
2547   no)
2548     bootstrap_suffix=no-bootstrap
2549     BUILD_CONFIG=
2550     ;;
2551 esac
2552
2553 AC_MSG_CHECKING(for default BUILD_CONFIG)
2554
2555 AC_ARG_WITH([build-config],
2556   [AS_HELP_STRING([--with-build-config='NAME NAME2...'],
2557                   [use config/NAME.mk build configuration])],
2558   [case $with_build_config in
2559    yes) with_build_config= ;;
2560    no) with_build_config= BUILD_CONFIG= ;;
2561    esac])
2562
2563 if test "x${with_build_config}" != x; then
2564   BUILD_CONFIG=$with_build_config
2565 else
2566   case $BUILD_CONFIG in
2567   bootstrap-debug)
2568     if echo "int f (void) { return 0; }" > conftest.c &&
2569        ${CC} -c conftest.c &&
2570        mv conftest.o conftest.o.g0 &&
2571        ${CC} -c -g conftest.c &&
2572        mv conftest.o conftest.o.g &&
2573        ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then
2574       :
2575     else
2576       BUILD_CONFIG=
2577     fi
2578     rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g
2579     ;;
2580   esac
2581 fi
2582 AC_MSG_RESULT($BUILD_CONFIG)
2583 AC_SUBST(BUILD_CONFIG)
2584
2585 extrasub_build=
2586 for module in ${build_configdirs} ; do
2587   if test -z "${no_recursion}" \
2588      && test -f ${build_subdir}/${module}/Makefile; then
2589     echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
2590     rm -f ${build_subdir}/${module}/Makefile
2591   fi
2592   extrasub_build="$extrasub_build
2593 /^@if build-$module\$/d
2594 /^@endif build-$module\$/d
2595 /^@if build-$module-$bootstrap_suffix\$/d
2596 /^@endif build-$module-$bootstrap_suffix\$/d"
2597 done
2598 extrasub_host=
2599 for module in ${configdirs} ; do
2600   if test -z "${no_recursion}"; then
2601     for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
2602       if test -f ${file}; then
2603         echo 1>&2 "*** removing ${file} to force reconfigure"
2604         rm -f ${file}
2605       fi
2606     done
2607   fi
2608   extrasub_host="$extrasub_host
2609 /^@if $module\$/d
2610 /^@endif $module\$/d
2611 /^@if $module-$bootstrap_suffix\$/d
2612 /^@endif $module-$bootstrap_suffix\$/d"
2613 done
2614 extrasub_target=
2615 for module in ${target_configdirs} ; do
2616   if test -z "${no_recursion}" \
2617      && test -f ${target_subdir}/${module}/Makefile; then
2618     echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
2619     rm -f ${target_subdir}/${module}/Makefile
2620   fi
2621
2622   # We only bootstrap target libraries listed in bootstrap_target_libs.
2623   case $bootstrap_target_libs in
2624     *,target-$module,*) target_bootstrap_suffix=$bootstrap_suffix ;;
2625     *) target_bootstrap_suffix=no-bootstrap ;;
2626   esac
2627
2628   extrasub_target="$extrasub_target
2629 /^@if target-$module\$/d
2630 /^@endif target-$module\$/d
2631 /^@if target-$module-$target_bootstrap_suffix\$/d
2632 /^@endif target-$module-$target_bootstrap_suffix\$/d"
2633 done
2634
2635 # Do the final fixup along with target modules.
2636 extrasub_target="$extrasub_target
2637 /^@if /,/^@endif /d"
2638
2639 # Create the serialization dependencies.  This uses a temporary file.
2640
2641 AC_ARG_ENABLE([serial-configure],
2642 [AS_HELP_STRING([[--enable-serial-[{host,target,build}-]configure]],
2643                 [force sequential configuration of
2644                  sub-packages for the host, target or build
2645                  machine, or all sub-packages])])
2646
2647 case ${enable_serial_configure} in
2648   yes)
2649     enable_serial_build_configure=yes
2650     enable_serial_host_configure=yes
2651     enable_serial_target_configure=yes
2652     ;;
2653 esac
2654
2655 # These force 'configure's to be done one at a time, to avoid problems
2656 # with contention over a shared config.cache.
2657 rm -f serdep.tmp
2658 echo '# serdep.tmp' > serdep.tmp
2659 olditem=
2660 test "x${enable_serial_build_configure}" = xyes &&
2661 for item in ${build_configdirs} ; do
2662   case ${olditem} in
2663     "") ;;
2664     *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
2665   esac
2666   olditem=${item}
2667 done
2668 olditem=
2669 test "x${enable_serial_host_configure}" = xyes &&
2670 for item in ${configdirs} ; do
2671   case ${olditem} in
2672     "") ;;
2673     *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
2674   esac
2675   olditem=${item}
2676 done
2677 olditem=
2678 test "x${enable_serial_target_configure}" = xyes &&
2679 for item in ${target_configdirs} ; do
2680   case ${olditem} in
2681     "") ;;
2682     *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
2683   esac
2684   olditem=${item}
2685 done
2686 serialization_dependencies=serdep.tmp
2687 AC_SUBST_FILE(serialization_dependencies)
2688
2689 # Base args.  Strip norecursion, cache-file, srcdir, host, build,
2690 # target, nonopt, and variable assignments.  These are the ones we
2691 # might not want to pass down to subconfigures.  The exception being
2692 # --cache-file=/dev/null, which is used to turn off the use of cache
2693 # files altogether, and which should be passed on to subconfigures.
2694 # Also strip program-prefix, program-suffix, and program-transform-name,
2695 # so that we can pass down a consistent program-transform-name.
2696 baseargs=
2697 tbaseargs=
2698 keep_next=no
2699 skip_next=no
2700 eval "set -- $ac_configure_args"
2701 for ac_arg
2702 do
2703   if test X"$skip_next" = X"yes"; then
2704     skip_next=no
2705     continue
2706   fi
2707   if test X"$keep_next" = X"yes"; then
2708     case $ac_arg in
2709       *\'*)
2710         ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2711     esac
2712     baseargs="$baseargs '$ac_arg'"
2713     tbaseargs="$tbaseargs '$ac_arg'"
2714     keep_next=no
2715     continue
2716   fi
2717
2718   # Handle separated arguments.  Based on the logic generated by
2719   # autoconf 2.59.
2720   case $ac_arg in
2721     *=* | --config-cache | -C | -disable-* | --disable-* \
2722       | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
2723       | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
2724       | -with-* | --with-* | -without-* | --without-* | --x)
2725       separate_arg=no
2726       ;;
2727     -*)
2728       separate_arg=yes
2729       ;;
2730     *)
2731       separate_arg=no
2732       ;;
2733   esac
2734
2735   skip_targ=no
2736   case $ac_arg in
2737 changequote(,)
2738   --with-* | --without-*)
2739     libopt=`echo "$ac_arg" | sed -e 's,^--[^-_]*[-_],,' -e 's,=.*$,,'`
2740
2741     case $libopt in
2742     *[-_]include)
2743       lib=`echo "$libopt" | sed 's,[-_]include$,,'`
2744       ;;
2745     *[-_]lib)
2746       lib=`echo "$libopt" | sed 's,[-_]lib$,,'`
2747       ;;
2748     *)
2749       lib=$libopt
2750       ;;
2751     esac
2752 changequote([,])
2753
2754     case $lib in
2755     mpc | mpfr | gmp | ppl | cloog)
2756       # If we're processing --with-$lib, --with-$lib-include or
2757       # --with-$lib-lib, for one of the libs above, and target is
2758       # different from host, don't pass the current argument to any
2759       # target library's configure.
2760       if test x$is_cross_compiler = xyes; then
2761         skip_targ=yes
2762       fi
2763       ;;
2764     esac
2765     ;;
2766   esac
2767
2768   case "$ac_arg" in
2769     --cache-file=/dev/null | \
2770     -cache-file=/dev/null )
2771       # Handled here to avoid the test to skip args below.
2772       baseargs="$baseargs '$ac_arg'"
2773       tbaseargs="$tbaseargs '$ac_arg'"
2774       # Assert: $separate_arg should always be no.
2775       keep_next=$separate_arg
2776       ;;
2777     --no*)
2778       continue
2779       ;;
2780     --c* | \
2781     --sr* | \
2782     --ho* | \
2783     --bu* | \
2784     --t* | \
2785     --program-* | \
2786     -cache_file* | \
2787     -srcdir* | \
2788     -host* | \
2789     -build* | \
2790     -target* | \
2791     -program-prefix* | \
2792     -program-suffix* | \
2793     -program-transform-name* )
2794       skip_next=$separate_arg
2795       continue
2796       ;;
2797     -*)
2798       # An option.  Add it.
2799       case $ac_arg in
2800         *\'*)
2801           ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2802       esac
2803       baseargs="$baseargs '$ac_arg'"
2804       if test X"$skip_targ" = Xno; then
2805         tbaseargs="$tbaseargs '$ac_arg'"
2806       fi
2807       keep_next=$separate_arg
2808       ;;
2809     *)
2810       # Either a variable assignment, or a nonopt (triplet).  Don't
2811       # pass it down; let the Makefile handle this.
2812       continue
2813       ;;
2814   esac
2815 done
2816 # Remove the initial space we just introduced and, as these will be
2817 # expanded by make, quote '$'.
2818 baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
2819
2820 # Add in --program-transform-name, after --program-prefix and
2821 # --program-suffix have been applied to it.  Autoconf has already
2822 # doubled dollar signs and backslashes in program_transform_name; we want
2823 # the backslashes un-doubled, and then the entire thing wrapped in single
2824 # quotes, because this will be expanded first by make and then by the shell.
2825 # Also, because we want to override the logic in subdir configure scripts to
2826 # choose program_transform_name, replace any s,x,x, with s,y,y,.
2827 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
2828 ${program_transform_name}
2829 EOF_SED
2830 gcc_transform_name=`cat conftestsed.out`
2831 rm -f conftestsed.out
2832 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
2833 tbaseargs="$tbaseargs --program-transform-name='${gcc_transform_name}'"
2834 if test "$silent" = yes; then
2835   baseargs="$baseargs --silent"
2836   tbaseargs="$tbaseargs --silent"
2837 fi
2838 baseargs="$baseargs --disable-option-checking"
2839 tbaseargs="$tbaseargs --disable-option-checking"
2840
2841 # Record and document user additions to sub configure arguments.
2842 AC_ARG_VAR([build_configargs],
2843            [additional configure arguments for build directories])
2844 AC_ARG_VAR([host_configargs],
2845            [additional configure arguments for host directories])
2846 AC_ARG_VAR([target_configargs],
2847            [additional configure arguments for target directories])
2848
2849 # For the build-side libraries, we just need to pretend we're native,
2850 # and not use the same cache file.  Multilibs are neither needed nor
2851 # desired.
2852 build_configargs="$build_configargs --cache-file=../config.cache ${baseargs}"
2853
2854 # For host modules, accept cache file option, or specification as blank.
2855 case "${cache_file}" in
2856 "") # empty
2857   cache_file_option="" ;;
2858 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
2859   cache_file_option="--cache-file=${cache_file}" ;;
2860 *) # relative path
2861   cache_file_option="--cache-file=../${cache_file}" ;;
2862 esac
2863
2864 # Host dirs don't like to share a cache file either, horribly enough.
2865 # This seems to be due to autoconf 2.5x stupidity.
2866 host_configargs="$host_configargs --cache-file=./config.cache ${extra_host_args} ${baseargs}"
2867
2868 target_configargs="$target_configargs ${tbaseargs}"
2869
2870 # Passing a --with-cross-host argument lets the target libraries know
2871 # whether they are being built with a cross-compiler or being built
2872 # native.  However, it would be better to use other mechanisms to make the
2873 # sorts of decisions they want to make on this basis.  Please consider
2874 # this option to be deprecated.  FIXME.
2875 if test x${is_cross_compiler} = xyes ; then
2876   target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
2877 fi
2878
2879 # Default to --enable-multilib.
2880 if test x${enable_multilib} = x ; then
2881   target_configargs="--enable-multilib ${target_configargs}"
2882 fi
2883
2884 # Pass --with-newlib if appropriate.  Note that target_configdirs has
2885 # changed from the earlier setting of with_newlib.
2886 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
2887   target_configargs="--with-newlib ${target_configargs}"
2888 fi
2889
2890 # Different target subdirs use different values of certain variables
2891 # (notably CXX).  Worse, multilibs use *lots* of different values.
2892 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
2893 # it doesn't automatically accept command-line overrides of them.
2894 # This means it's not safe for target subdirs to share a cache file,
2895 # which is disgusting, but there you have it.  Hopefully this can be
2896 # fixed in future.  It's still worthwhile to use a cache file for each
2897 # directory.  I think.
2898
2899 # Pass the appropriate --build, --host, --target and --cache-file arguments.
2900 # We need to pass --target, as newer autoconf's requires consistency
2901 # for target_alias and gcc doesn't manage it consistently.
2902 target_configargs="--cache-file=./config.cache ${target_configargs}"
2903
2904 FLAGS_FOR_TARGET=
2905 case " $target_configdirs " in
2906  *" newlib "*)
2907   case " $target_configargs " in
2908   *" --with-newlib "*)
2909    case "$target" in
2910     *-cygwin*)
2911       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/include -isystem $$s/winsup/cygwin/include -isystem $$s/winsup/w32api/include'
2912       ;;
2913    esac
2914
2915    # If we're not building GCC, don't discard standard headers.
2916    if test -d ${srcdir}/gcc; then
2917      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
2918
2919      if test "${build}" != "${host}"; then
2920        # On Canadian crosses, CC_FOR_TARGET will have already been set
2921        # by `configure', so we won't have an opportunity to add -Bgcc/
2922        # to it.  This is right: we don't want to search that directory
2923        # for binaries, but we want the header files in there, so add
2924        # them explicitly.
2925        FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include -isystem $$r/$(HOST_SUBDIR)/gcc/include-fixed'
2926
2927        # Someone might think of using the pre-installed headers on
2928        # Canadian crosses, in case the installed compiler is not fully
2929        # compatible with the compiler being built.  In this case, it
2930        # would be better to flag an error than risking having
2931        # incompatible object files being constructed.  We can't
2932        # guarantee that an error will be flagged, but let's hope the
2933        # compiler will do it, when presented with incompatible header
2934        # files.
2935      fi
2936    fi
2937
2938    case "${target}-${is_cross_compiler}" in
2939    i[[3456789]]86-*-linux*-no)
2940       # Here host == target, so we don't need to build gcc,
2941       # so we don't want to discard standard headers.
2942       FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
2943       ;;
2944    *)
2945       # If we're building newlib, use its generic headers last, but search
2946       # for any libc-related directories first (so make it the last -B
2947       # switch).
2948       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
2949
2950       # If we're building libgloss, find the startup file, simulator library
2951       # and linker script.
2952       case " $target_configdirs " in
2953         *" libgloss "*)
2954         # Look for startup file, simulator library and maybe linker script.
2955         FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir"
2956         # Look for libnosys.a in case the target needs it.
2957         FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
2958         # Most targets have the linker script in the source directory.
2959         FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir"
2960         ;;
2961       esac
2962       ;;
2963    esac
2964    ;;
2965   esac
2966   ;;
2967 esac
2968
2969 case "$target" in
2970   x86_64-*mingw* | *-w64-mingw*)
2971   # MinGW-w64 does not use newlib, nor does it use winsup. It may,
2972   # however, use a symlink named 'mingw' in ${prefix} .
2973     FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L${prefix}/${target}/lib -L${prefix}/mingw/lib -isystem ${prefix}/${target}/include -isystem ${prefix}/mingw/include'
2974     ;;
2975   *-mingw*)
2976   # MinGW can't be handled as Cygwin above since it does not use newlib.
2977     FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include'
2978     ;;
2979 esac
2980
2981 # Allow the user to override the flags for
2982 # our build compiler if desired.
2983 if test x"${build}" = x"${host}" ; then
2984   CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
2985   CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
2986   LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
2987 fi
2988
2989 # On Canadian crosses, we'll be searching the right directories for
2990 # the previously-installed cross compiler, so don't bother to add
2991 # flags for directories within the install tree of the compiler
2992 # being built; programs in there won't even run.
2993 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
2994   # Search for pre-installed headers if nothing else fits.
2995   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
2996 fi
2997
2998 if test "x${use_gnu_ld}" = x &&
2999    echo " ${configdirs} " | grep " ld " > /dev/null ; then
3000   # Arrange for us to find uninstalled linker scripts.
3001   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
3002 fi
3003
3004 # Search for other target-specific linker scripts and such.
3005 case "${target}" in
3006   mep*)
3007     FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
3008     ;;
3009 esac
3010
3011 # Makefile fragments.
3012 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
3013 do
3014   eval fragval=\$$frag
3015   if test $fragval != /dev/null; then
3016     eval $frag=${srcdir}/$fragval
3017   fi
3018 done
3019 AC_SUBST_FILE(host_makefile_frag)
3020 AC_SUBST_FILE(target_makefile_frag)
3021 AC_SUBST_FILE(alphaieee_frag)
3022 AC_SUBST_FILE(ospace_frag)
3023
3024 # Miscellanea: directories, flags, etc.
3025 AC_SUBST(RPATH_ENVVAR)
3026 AC_SUBST(GCC_SHLIB_SUBDIR)
3027 AC_SUBST(tooldir)
3028 AC_SUBST(build_tooldir)
3029 AC_SUBST(CONFIGURE_GDB_TK)
3030 AC_SUBST(GDB_TK)
3031 AC_SUBST(INSTALL_GDB_TK)
3032
3033 # Build module lists & subconfigure args.
3034 AC_SUBST(build_configargs)
3035 AC_SUBST(build_configdirs)
3036
3037 # Host module lists & subconfigure args.
3038 AC_SUBST(host_configargs)
3039 AC_SUBST(configdirs)
3040 AC_SUBST(target_configdirs)
3041
3042 # Target module lists & subconfigure args.
3043 AC_SUBST(target_configargs)
3044
3045
3046 # Build tools.
3047 AC_SUBST(AR_FOR_BUILD)
3048 AC_SUBST(AS_FOR_BUILD)
3049 AC_SUBST(CC_FOR_BUILD)
3050 AC_SUBST(CFLAGS_FOR_BUILD)
3051 AC_SUBST(CXXFLAGS_FOR_BUILD)
3052 AC_SUBST(CXX_FOR_BUILD)
3053 AC_SUBST(DLLTOOL_FOR_BUILD)
3054 AC_SUBST(GCJ_FOR_BUILD)
3055 AC_SUBST(GFORTRAN_FOR_BUILD)
3056 AC_SUBST(GOC_FOR_BUILD)
3057 AC_SUBST(LDFLAGS_FOR_BUILD)
3058 AC_SUBST(LD_FOR_BUILD)
3059 AC_SUBST(NM_FOR_BUILD)
3060 AC_SUBST(RANLIB_FOR_BUILD)
3061 AC_SUBST(WINDMC_FOR_BUILD)
3062 AC_SUBST(WINDRES_FOR_BUILD)
3063
3064 # Generate default definitions for YACC, M4, LEX and other programs that run
3065 # on the build machine.  These are used if the Makefile can't locate these
3066 # programs in objdir.
3067 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
3068
3069 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
3070 case " $build_configdirs " in
3071   *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
3072 esac
3073
3074 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
3075 case " $build_configdirs " in
3076   *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
3077 esac
3078
3079 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
3080 case " $build_configdirs " in
3081   *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
3082 esac
3083
3084 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
3085 case " $build_configdirs " in
3086   *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3087   *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
3088 esac
3089
3090 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
3091 case " $build_configdirs " in
3092   *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
3093 esac
3094
3095 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
3096 case " $build_configdirs " in
3097   *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
3098   *)
3099 changequote(,)
3100     # For an installed makeinfo, we require it to be from texinfo 4.7 or
3101     # higher, else we use the "missing" dummy.
3102     if ${MAKEINFO} --version \
3103        | egrep 'texinfo[^0-9]*(4\.([7-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then
3104       :
3105     else
3106       MAKEINFO="$MISSING makeinfo"
3107     fi
3108     ;;
3109 changequote([,])
3110 esac
3111
3112 # FIXME: expect and dejagnu may become build tools?
3113
3114 AC_CHECK_PROGS(EXPECT, expect, expect)
3115 case " $configdirs " in
3116   *" expect "*)
3117     test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
3118     ;;
3119 esac
3120
3121 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
3122 case " $configdirs " in
3123   *" dejagnu "*)
3124     test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
3125     ;;
3126 esac
3127
3128
3129 # Host tools.
3130 NCN_STRICT_CHECK_TOOLS(AR, ar)
3131 NCN_STRICT_CHECK_TOOLS(AS, as)
3132 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
3133 NCN_STRICT_CHECK_TOOLS(LD, ld)
3134 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
3135 NCN_STRICT_CHECK_TOOLS(NM, nm)
3136 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, true)
3137 NCN_STRICT_CHECK_TOOLS(STRIP, strip, true)
3138 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
3139 NCN_STRICT_CHECK_TOOLS(WINDMC, windmc)
3140 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
3141 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
3142 AC_SUBST(CC)
3143 AC_SUBST(CXX)
3144 AC_SUBST(CFLAGS)
3145 AC_SUBST(CXXFLAGS)
3146
3147 # Target tools.
3148 AC_ARG_WITH([build-time-tools],
3149   [AS_HELP_STRING([--with-build-time-tools=PATH],
3150                   [use given path to find target tools during the build])],
3151   [case x"$withval" in
3152      x/*) ;;
3153      *)
3154        with_build_time_tools=
3155        AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
3156        ;;
3157    esac],
3158   [with_build_time_tools=])
3159
3160 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
3161 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
3162 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
3163 NCN_STRICT_CHECK_TARGET_TOOLS(GCJ_FOR_TARGET, gcj)
3164 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
3165 NCN_STRICT_CHECK_TARGET_TOOLS(GOC_FOR_TARGET, gccgo)
3166
3167 ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
3168 ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
3169 ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
3170 ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
3171 ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
3172 ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
3173 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
3174 ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib)
3175 ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
3176 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
3177 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)
3178
3179 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
3180
3181 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
3182 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
3183 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3184 dnl see comments for CXX_FOR_TARGET_FLAG_TO_PASS
3185 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
3186                 [gcc/g++ -B$$r/$(HOST_SUBDIR)/gcc/ -nostdinc++ `if test -f $$r/$(TARGET_SUBDIR)/libstdc++-v3/scripts/testsuite_flags; then $(SHELL) $$r/$(TARGET_SUBDIR)/libstdc++-v3/scripts/testsuite_flags --build-includes; else echo -funconfigured-libstdc++-v3 ; fi` -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs],
3187                 c++)
3188 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
3189                 [gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs],
3190                 c++)
3191 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
3192 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
3193 GCC_TARGET_TOOL(gcj, GCJ_FOR_TARGET, GCJ,
3194                 [gcc/gcj -B$$r/$(HOST_SUBDIR)/gcc/], java)
3195 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
3196                 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
3197 GCC_TARGET_TOOL(gccgo, GOC_FOR_TARGET, GOC,
3198                 [gcc/gccgo -B$$r/$(HOST_SUBDIR)/gcc/], go)
3199 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
3200 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
3201 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
3202 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
3203 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
3204 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip-new])
3205 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
3206 GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])
3207
3208 AC_SUBST(FLAGS_FOR_TARGET)
3209 AC_SUBST(RAW_CXX_FOR_TARGET)
3210
3211 # Certain tools may need extra flags.
3212 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
3213 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
3214 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
3215
3216 # When building target libraries, except in a Canadian cross, we use
3217 # the same toolchain as the compiler we just built.
3218 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
3219 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
3220 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
3221 if test $host = $build; then
3222   case " $configdirs " in
3223     *" gcc "*)
3224       COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
3225       COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
3226       COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
3227       ;;
3228   esac
3229 fi
3230
3231 AC_SUBST(COMPILER_AS_FOR_TARGET)
3232 AC_SUBST(COMPILER_LD_FOR_TARGET)
3233 AC_SUBST(COMPILER_NM_FOR_TARGET)
3234
3235 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
3236 AC_ARG_ENABLE(maintainer-mode,
3237 [AS_HELP_STRING([--enable-maintainer-mode],
3238                 [enable make rules and dependencies not useful
3239                  (and sometimes confusing) to the casual installer])],
3240       USE_MAINTAINER_MODE=$enableval,
3241       USE_MAINTAINER_MODE=no)
3242 AC_MSG_RESULT($USE_MAINTAINER_MODE)
3243 AC_SUBST(MAINTAINER_MODE_TRUE)
3244 AC_SUBST(MAINTAINER_MODE_FALSE)
3245 if test "$USE_MAINTAINER_MODE" = yes; then
3246   MAINTAINER_MODE_TRUE=
3247   MAINTAINER_MODE_FALSE='#'
3248 else
3249   MAINTAINER_MODE_TRUE='#'
3250   MAINTAINER_MODE_FALSE=
3251 fi
3252 MAINT=$MAINTAINER_MODE_TRUE
3253 AC_SUBST(MAINT)dnl
3254
3255 # ---------------------
3256 # GCC bootstrap support
3257 # ---------------------
3258
3259 # Stage specific cflags for build.
3260 stage1_cflags="-g"
3261 case $build in
3262   vax-*-*)
3263     case ${GCC} in
3264       yes) stage1_cflags="-g -Wa,-J" ;;
3265       *) stage1_cflags="-g -J" ;;
3266     esac ;;
3267 esac
3268
3269 # This is aimed to mimic bootstrap with a non-GCC compiler to catch problems.
3270 if test "$GCC" = yes -a "$ENABLE_BUILD_WITH_CXX" != yes; then
3271   saved_CFLAGS="$CFLAGS"
3272
3273   # Pass -fkeep-inline-functions for stage 1 if the GCC version supports it.
3274   CFLAGS="$CFLAGS -fkeep-inline-functions"
3275   AC_MSG_CHECKING([whether -fkeep-inline-functions is supported])
3276   AC_TRY_COMPILE([
3277 #if (__GNUC__ < 3) \
3278     || (__GNUC__ == 3 && (__GNUC_MINOR__ < 3 \
3279                           || (__GNUC_MINOR__ == 3 && __GNUC_PATCHLEVEL__ < 1)))
3280 #error http://gcc.gnu.org/PR29382
3281 #endif
3282     ],,
3283     [AC_MSG_RESULT([yes]); stage1_cflags="$stage1_cflags -fkeep-inline-functions"],
3284     [AC_MSG_RESULT([no])])
3285
3286   CFLAGS="$saved_CFLAGS"
3287 fi
3288
3289 AC_SUBST(stage1_cflags)
3290
3291 # Enable --enable-checking in stage1 of the compiler.
3292 AC_ARG_ENABLE(stage1-checking,
3293 [AS_HELP_STRING([[--enable-stage1-checking[=all]]],
3294                 [choose additional checking for stage1 of the compiler])],
3295 [stage1_checking=--enable-checking=${enable_stage1_checking}],
3296 [if test "x$enable_checking" = xno || test "x$enable_checking" = x; then
3297   stage1_checking=--enable-checking=yes,types
3298 else
3299   stage1_checking=--enable-checking=$enable_checking,types
3300 fi])
3301 AC_SUBST(stage1_checking)
3302
3303 # Enable -Werror in bootstrap stage2 and later.
3304 AC_ARG_ENABLE(werror,
3305 [AS_HELP_STRING([--enable-werror],
3306                 [enable -Werror in bootstrap stage2 and later])], [],
3307 [if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
3308   enable_werror=yes
3309 else
3310   enable_werror=no
3311 fi])
3312 case ${enable_werror} in
3313   yes) stage2_werror_flag="--enable-werror-always" ;;
3314   *) stage2_werror_flag="" ;;
3315 esac
3316 AC_SUBST(stage2_werror_flag)
3317
3318 # Specify what files to not compare during bootstrap.
3319
3320 compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
3321 case "$target" in
3322   hppa*64*-*-hpux*) ;;
3323   hppa*-*-hpux*) compare_exclusions="gcc/cc*-checksum\$(objext) | */libgcc/lib2funcs* | gcc/ada/*tools/*" ;;
3324 esac
3325 case " $configdirs " in
3326 *" ppl "*) compare_exclusions="$compare_exclusions | ppl/src/ppl-config.o" ;;
3327 esac
3328 AC_SUBST(compare_exclusions)
3329
3330 AC_CONFIG_FILES([Makefile],
3331   [sed "$extrasub_build" Makefile |
3332    sed "$extrasub_host" |
3333    sed "$extrasub_target" > mf$$
3334    mv -f mf$$ Makefile],
3335   [extrasub_build="$extrasub_build"
3336    extrasub_host="$extrasub_host"
3337    extrasub_target="$extrasub_target"])
3338 AC_OUTPUT