configure.ac

   1 #   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
   2 #   2001, 2002, 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
   3 #
   4 # This file is free software; you can redistribute it and/or modify it
   5 # under the terms of the GNU General Public License as published by
   6 # the Free Software Foundation; either version 2 of the License, or
   7 # (at your option) any later version.
   8 #
   9 # This program is distributed in the hope that it will be useful, but
  10 # WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12 # General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU General Public License
  15 # along with this program; if not, write to the Free Software
  16 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  17
  18 ##############################################################################
  19 ### WARNING: this file contains embedded tabs.  Do not run untabify on this file.
  20
  21 sinclude(config/acx.m4)
  22
  23 AC_INIT(move-if-change)
  24 AC_PREREQ(2.59)
  25
  26 # Find the build, host, and target systems.
  27 ACX_NONCANONICAL_BUILD
  28 ACX_NONCANONICAL_HOST
  29 ACX_NONCANONICAL_TARGET
  30
  31 dnl Autoconf 2.5x and later will set a default program prefix if
  32 dnl --target was used, even if it was the same as --host.  Disable
  33 dnl that behavior.  This must be done before AC_CANONICAL_SYSTEM
  34 dnl to take effect.
  35 test "$host_noncanonical" = "$target_noncanonical" &&
  36   test "$program_prefix$program_suffix$program_transform_name" = \
  37     NONENONEs,x,x, &&
  38   program_transform_name=s,y,y,
  39
  40 AC_CANONICAL_SYSTEM
  41 AC_ARG_PROGRAM
  42
  43 m4_pattern_allow([^AS_FOR_TARGET$])dnl
  44 m4_pattern_allow([^AS_FOR_BUILD$])dnl
  45
  46 # Get 'install' or 'install-sh' and its variants.
  47 AC_PROG_INSTALL
  48 ACX_PROG_LN
  49 AC_PROG_LN_S
  50
  51 ### we might need to use some other shell than /bin/sh for running subshells
  52 ### If we are on Windows, search for the shell.  This will permit people
  53 ### to not have /bin/sh, but to be able to see /SOME/PATH/sh configure
  54 ### without also having to set CONFIG_SHELL.  This code will work when
  55 ### using bash, which sets OSTYPE.
  56 case "${OSTYPE}" in
  57 *win32*)
  58   if test x${CONFIG_SHELL} = x ; then
  59     if test ! -f /bin/sh ; then
  60       if test x${SHELL} != x && test -f ${SHELL} ; then
  61         CONFIG_SHELL=${SHELL}
  62         export CONFIG_SHELL
  63       else
  64         for prog in sh sh.exe bash bash.exe; do
  65           IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
  66           for dir in $PATH; do
  67             test -z "$dir" && dir=.
  68             if test -f $dir/$prog; then
  69               CONFIG_SHELL=$dir/$prog
  70               export CONFIG_SHELL
  71               break
  72             fi
  73           done
  74           IFS="$save_ifs"
  75           test -n "${CONFIG_SHELL}" && break
  76         done
  77       fi
  78     fi
  79   fi
  80   ;;
  81 esac
  82
  83 config_shell=${CONFIG_SHELL-/bin/sh}
  84
  85 progname=$0
  86 # if PWD already has a value, it is probably wrong.
  87 if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi
  88
  89 # Export original configure arguments for use by sub-configures.
  90 # Quote arguments with shell meta charatcers.
  91 TOPLEVEL_CONFIGURE_ARGUMENTS=
  92 set -- "$progname" "$@"
  93 for ac_arg
  94 do
  95   case "$ac_arg" in
  96   *" "*|*"      "*|*[[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\']]*)
  97     ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"`
  98     # if the argument is of the form -foo=baz, quote the baz part only
  99     ac_arg=`echo "'$ac_arg'" | sed "s/^'\([[-a-zA-Z0-9]]*=\)/\\1'/"` ;;
 100   *) ;;
 101   esac
 102   # Add the quoted argument to the list.
 103   TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS $ac_arg"
 104 done
 105 if test "$silent" = yes; then
 106   TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS --silent"
 107 fi
 108 # Remove the initial space we just introduced and, as these will be
 109 # expanded by make, quote '$'.
 110 TOPLEVEL_CONFIGURE_ARGUMENTS=`echo "x$TOPLEVEL_CONFIGURE_ARGUMENTS" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
 111 AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS)
 112
 113 moveifchange=${srcdir}/move-if-change
 114
 115 srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
 116
 117 # We pass INSTALL explicitly to sub-makes.  Make sure that it is not
 118 # a relative path.
 119 if test "$INSTALL" = "${srcdir}/install-sh -c"; then
 120   INSTALL="${srcpwd}/install-sh -c"
 121 fi
 122
 123 # Set srcdir to "." if that's what it is.
 124 # This is important for multilib support.
 125 pwd=`${PWDCMD-pwd}`
 126 if test "${pwd}" = "${srcpwd}" ; then
 127   srcdir=.
 128 fi
 129
 130 topsrcdir=$srcpwd
 131
 132 extra_host_args=
 133
 134 ### To add a new directory to the tree, first choose whether it is a target
 135 ### or a host dependent tool.  Then put it into the appropriate list
 136 ### (library or tools, host or target), doing a dependency sort.
 137
 138 # Subdirs will be configured in the order listed in build_configdirs,
 139 # configdirs, or target_configdirs; see the serialization section below.
 140
 141 # Dependency sorting is only needed when *configuration* must be done in
 142 # a particular order.  In all cases a dependency should be specified in
 143 # the Makefile, whether or not it's implicitly specified here.
 144
 145 # Double entries in build_configdirs, configdirs, or target_configdirs may
 146 # cause circular dependencies and break everything horribly.
 147
 148 # these library is used by various programs built for the build
 149 # environment
 150 #
 151 build_libs="build-libiberty"
 152
 153 # these tools are built for the build environment
 154 build_tools="build-texinfo build-byacc build-flex build-bison build-m4 build-fixincludes"
 155
 156 # these libraries are used by various programs built for the host environment
 157 #
 158 host_libs="intl mmalloc libiberty opcodes bfd readline tcl tk itcl libgui zlib libcpp libdecnumber gmp mpfr"
 159
 160 # these tools are built for the host environment
 161 # Note, the powerpc-eabi build depends on sim occurring before gdb in order to
 162 # know that we are building the simulator.
 163 # binutils, gas and ld appear in that order because it makes sense to run
 164 # "make check" in that particular order.
 165 host_tools="texinfo byacc flex bison binutils gas ld fixincludes gcc sid sim gdb make patch prms send-pr gprof etc expect dejagnu ash bash bzip2 m4 autoconf automake libtool diff rcs fileutils shellutils time textutils wdiff find uudecode hello tar gzip indent recode release sed utils guile perl gawk findutils gettext zip fastjar gnattools"
 166
 167 # libgcj represents the runtime libraries only used by gcj.
 168 libgcj="target-libffi \
 169         target-zlib \
 170         target-qthreads \
 171         target-libjava"
 172
 173 # these libraries are built for the target environment, and are built after
 174 # the host libraries and the host tools (which may be a cross compiler)
 175 #
 176 target_libraries="target-libgcc \
 177                 target-libiberty \
 178                 target-libgloss \
 179                 target-newlib \
 180                 target-libgomp \
 181                 target-libstdc++-v3 \
 182                 target-libmudflap \
 183                 target-libssp \
 184                 target-libgfortran \
 185                 target-boehm-gc \
 186                 ${libgcj} \
 187                 target-libobjc \
 188                 target-libada"
 189
 190 # these tools are built using the target libraries, and are intended to
 191 # run only in the target environment
 192 #
 193 # note: any program that *uses* libraries that are in the "target_libraries"
 194 # list belongs in this list.  those programs are also very likely
 195 # candidates for the "native_only" list which follows
 196 #
 197 target_tools="target-examples target-groff target-gperf target-rda"
 198
 199 ################################################################################
 200
 201 ## All tools belong in one of the four categories, and are assigned above
 202 ## We assign ${configdirs} this way to remove all embedded newlines.  This
 203 ## is important because configure will choke if they ever get through.
 204 ## ${configdirs} is directories we build using the host tools.
 205 ## ${target_configdirs} is directories we build using the target tools.
 206 configdirs=`echo ${host_libs} ${host_tools}`
 207 target_configdirs=`echo ${target_libraries} ${target_tools}`
 208 build_configdirs=`echo ${build_libs} ${build_tools}`
 209
 210 m4_divert_text([PARSE_ARGS],
 211 [ac_subdirs_all=`cd $srcdir && echo */configure | sed 's,/configure,,g'`
 212 ])
 213
 214 ################################################################################
 215
 216 srcname="gnu development package"
 217
 218 # This gets set non-empty for some net releases of packages.
 219 appdirs=""
 220
 221 # Define is_cross_compiler to save on calls to 'test'.
 222 is_cross_compiler=
 223 if test x"${host}" = x"${target}" ; then
 224   is_cross_compiler=no
 225 else
 226   is_cross_compiler=yes
 227 fi
 228
 229 # Find the build and target subdir names.
 230 GCC_TOPLEV_SUBDIRS
 231
 232 # Skipdirs are removed silently.
 233 skipdirs=
 234 # Noconfigdirs are removed loudly.
 235 noconfigdirs=""
 236
 237 use_gnu_ld=
 238 # Make sure we don't let GNU ld be added if we didn't want it.
 239 if test x$with_gnu_ld = xno ; then
 240   use_gnu_ld=no
 241   noconfigdirs="$noconfigdirs ld"
 242 fi
 243
 244 use_gnu_as=
 245 # Make sure we don't let GNU as be added if we didn't want it.
 246 if test x$with_gnu_as = xno ; then
 247   use_gnu_as=no
 248   noconfigdirs="$noconfigdirs gas"
 249 fi
 250
 251 # some tools are so dependent upon X11 that if we're not building with X,
 252 # it's not even worth trying to configure, much less build, that tool.
 253
 254 case ${with_x} in
 255   yes | "") ;; # the default value for this tree is that X11 is available
 256   no)
 257     skipdirs="${skipdirs} tk itcl libgui"
 258     # We won't be able to build gdbtk without X.
 259     enable_gdbtk=no
 260     ;;
 261   *)  echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
 262 esac
 263
 264 # Some tools are only suitable for building in a "native" situation.
 265 # Remove these if host!=target.
 266 native_only="autoconf automake libtool fileutils find gawk gettext gzip hello indent m4 rcs recode sed shellutils tar textutils uudecode wdiff target-groff guile perl time ash bash bzip2 prms gnuserv target-gperf"
 267
 268 # Similarly, some are only suitable for cross toolchains.
 269 # Remove these if host=target.
 270 cross_only="target-libgloss target-newlib target-opcodes"
 271
 272 case $is_cross_compiler in
 273   no) skipdirs="${skipdirs} ${cross_only}" ;;
 274   yes) skipdirs="${skipdirs} ${native_only}" ;;
 275 esac
 276
 277 # If both --with-headers and --with-libs are specified, default to
 278 # --without-newlib.
 279 if test x"${with_headers}" != x && test x"${with_headers}" != xno \
 280    && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
 281   if test x"${with_newlib}" = x ; then
 282     with_newlib=no
 283   fi
 284 fi
 285
 286 # Recognize --with-newlib/--without-newlib.
 287 case ${with_newlib} in
 288   no) skipdirs="${skipdirs} target-newlib" ;;
 289   yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
 290 esac
 291
 292 # Configure extra directories which are host specific
 293
 294 case "${host}" in
 295   *-cygwin*)
 296     configdirs="$configdirs libtermcap" ;;
 297 esac
 298
 299 # A target can indicate whether a language isn't supported for some reason.
 300 # Only spaces may be used in this macro; not newlines or tabs.
 301 unsupported_languages=
 302
 303 # Remove more programs from consideration, based on the host or
 304 # target this usually means that a port of the program doesn't
 305 # exist yet.
 306
 307 case "${host}" in
 308   hppa*64*-*-*)
 309     noconfigdirs="$noconfigdirs byacc"
 310     ;;
 311   i[[3456789]]86-*-vsta)
 312     noconfigdirs="$noconfigdirs tcl expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff guile perl itcl gnuserv gettext"
 313     ;;
 314   i[[3456789]]86-*-go32* | i[[3456789]]86-*-msdosdjgpp*)
 315     noconfigdirs="$noconfigdirs tcl tk expect dejagnu send-pr uudecode guile itcl gnuserv libffi"
 316     ;;
 317   x86_64-*-mingw*)
 318     noconfigdirs="$noconfigdirs expect dejagnu autoconf automake send-pr rcs guile perl texinfo libtool newlib"
 319     ;;
 320   i[[3456789]]86-*-mingw32*)
 321     # noconfigdirs="tcl tk expect dejagnu make texinfo bison patch flex byacc send-pr uudecode dejagnu diff guile perl itcl gnuserv"
 322     noconfigdirs="$noconfigdirs expect dejagnu autoconf automake send-pr rcs guile perl texinfo libtool newlib"
 323     ;;
 324   i[[3456789]]86-*-beos*)
 325     noconfigdirs="$noconfigdirs tk itcl libgui gdb"
 326     ;;
 327   *-*-cygwin*)
 328     noconfigdirs="$noconfigdirs autoconf automake send-pr rcs guile perl"
 329     ;;
 330   *-*-netbsd*)
 331     noconfigdirs="$noconfigdirs rcs"
 332     ;;
 333   ppc*-*-pe)
 334     noconfigdirs="$noconfigdirs patch diff make tk tcl expect dejagnu autoconf automake texinfo bison send-pr gprof rcs guile perl itcl gnuserv"
 335     ;;
 336   powerpc-*-beos*)
 337     noconfigdirs="$noconfigdirs tk itcl libgui gdb dejagnu readline"
 338     ;;
 339 esac
 340
 341
 342 AC_ARG_ENABLE(libada,
 343 [  --enable-libada         build libada directory],
 344 ENABLE_LIBADA=$enableval,
 345 ENABLE_LIBADA=yes)
 346 if test "${ENABLE_LIBADA}" != "yes" ; then
 347   noconfigdirs="$noconfigdirs gnattools"
 348 fi
 349
 350 AC_ARG_ENABLE(libssp,
 351 [  --enable-libssp         build libssp directory],
 352 ENABLE_LIBSSP=$enableval,
 353 ENABLE_LIBSSP=yes)
 354
 355 # Save it here so that, even in case of --enable-libgcj, if the Java
 356 # front-end isn't enabled, we still get libgcj disabled.
 357 libgcj_saved=$libgcj
 358 case $enable_libgcj in
 359 yes)
 360   # If we reset it here, it won't get added to noconfigdirs in the
 361   # target-specific build rules, so it will be forcibly enabled
 362   # (unless the Java language itself isn't enabled).
 363   libgcj=
 364   ;;
 365 no)
 366   # Make sure we get it printed in the list of not supported target libs.
 367   noconfigdirs="$noconfigdirs ${libgcj}"
 368   ;;
 369 esac
 370
 371
 372 # Disable libmudflap on some systems.
 373 if test x$enable_libmudflap = x ; then
 374     case "${target}" in
 375     *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | bfin*-*-uclinux*)
 376         # Enable libmudflap by default in GNU and friends.
 377         ;;
 378     *-*-freebsd*)
 379         # Enable libmudflap by default in FreeBSD.
 380         ;;
 381     *)
 382         # Disable it by default everywhere else.
 383         noconfigdirs="$noconfigdirs target-libmudflap"
 384         ;;
 385     esac
 386 fi
 387
 388 # Disable libgomp on non POSIX hosted systems.
 389 if test x$enable_libgomp = x ; then
 390     # Enable libgomp by default on hosted POSIX systems.
 391     case "${target}" in
 392     *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
 393         ;;
 394     *-*-netbsd* | *-*-freebsd* | *-*-openbsd*)
 395         ;;
 396     *-*-solaris2* | *-*-sysv4* | *-*-irix6* | *-*-osf* | *-*-hpux11*)
 397         ;;
 398     *-*-darwin* | *-*-aix*)
 399         ;;
 400     *)
 401         noconfigdirs="$noconfigdirs target-libgomp"
 402         ;;
 403     esac
 404 fi
 405
 406 # Default libgloss CPU subdirectory.
 407 libgloss_dir="$target_cpu"
 408
 409 case "${target}" in
 410   *-*-chorusos)
 411     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 412     ;;
 413   powerpc-*-darwin* | i[[3456789]]86-*-darwin* | x86_64-*-darwin9*)
 414     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes gdb gprof"
 415     noconfigdirs="$noconfigdirs sim target-rda"
 416     ;;
 417   *-*-darwin*)
 418     noconfigdirs="$noconfigdirs ld gas gdb gprof"
 419     noconfigdirs="$noconfigdirs sim target-rda"
 420     noconfigdirs="$noconfigdirs ${libgcj}"
 421     ;;
 422   *-*-freebsd[[12]] | *-*-freebsd[[12]].* | *-*-freebsd*aout*)
 423     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 424     ;;
 425   *-*-freebsd*)
 426     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 427     if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
 428         && test -f /usr/local/include/gmp.h; then
 429       with_gmp=/usr/local
 430     fi
 431
 432     # Skip some stuff that's unsupported on some FreeBSD configurations.
 433     case "${target}" in
 434       i*86-*-*) ;;
 435       alpha*-*-*) ;;
 436       *)
 437         noconfigdirs="$noconfigdirs ${libgcj}"
 438         ;;
 439     esac
 440     ;;
 441   *-*-kaos*)
 442     # Remove unsupported stuff on all kaOS configurations.
 443     skipdirs="target-libiberty ${libgcj} target-libstdc++-v3 target-librx"
 444     skipdirs="$skipdirs target-libobjc target-examples target-groff target-gperf"
 445     skipdirs="$skipdirs zlib fastjar target-libjava target-boehm-gc target-zlib"
 446     noconfigdirs="$noconfigdirs target-libgloss"
 447     ;;
 448   *-*-netbsd*)
 449     # Skip some stuff on all NetBSD configurations.
 450     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss"
 451
 452     # Skip some stuff that's unsupported on some NetBSD configurations.
 453     case "${target}" in
 454       i*86-*-netbsdelf*) ;;
 455       arm*-*-netbsdelf*) ;;
 456       *)
 457         noconfigdirs="$noconfigdirs ${libgcj}"
 458         ;;
 459     esac
 460     ;;
 461   *-*-netware*)
 462     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss ${libgcj} target-libmudflap"
 463     ;;
 464   *-*-rtems*)
 465     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 466     ;;
 467     # The tpf target doesn't support gdb yet.
 468   *-*-tpf*)
 469     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty ${libgcj} target-libmudflap gdb tcl tk libgui itcl"
 470     ;;
 471   *-*-uclinux*)
 472     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-rda ${libgcj}"
 473     ;;
 474   *-*-vxworks*)
 475     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty target-libstdc++-v3 ${libgcj}"
 476     ;;
 477   alpha*-dec-osf*)
 478     # ld works, but does not support shared libraries.
 479     # newlib is not 64 bit ready.  I'm not sure about fileutils.
 480     # gas doesn't generate exception information.
 481     noconfigdirs="$noconfigdirs gas ld fileutils target-newlib target-libgloss"
 482     ;;
 483   alpha*-*-*vms*)
 484     noconfigdirs="$noconfigdirs gdb ld target-newlib target-libgloss ${libgcj}"
 485     ;;
 486   alpha*-*-linux*)
 487     # newlib is not 64 bit ready
 488     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 489     ;;
 490   alpha*-*-*)
 491     # newlib is not 64 bit ready
 492     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 493     ;;
 494   am33_2.0-*-linux*)
 495     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 496     ;;
 497   sh-*-linux*)
 498     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 499     ;;
 500   sh*-*-pe|mips*-*-pe|*arm-wince-pe)
 501     noconfigdirs="$noconfigdirs ${libgcj}"
 502     noconfigdirs="$noconfigdirs target-examples"
 503     noconfigdirs="$noconfigdirs target-libiberty texinfo send-pr"
 504     noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
 505     noconfigdirs="$noconfigdirs expect dejagnu"
 506     # the C++ libraries don't build on top of CE's C libraries
 507     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 508     noconfigdirs="$noconfigdirs target-newlib"
 509     case "${host}" in
 510       *-*-cygwin*) ;; # keep gdb and readline
 511       *) noconfigdirs="$noconfigdirs gdb readline"
 512          ;;
 513     esac
 514     libgloss_dir=wince
 515     ;;
 516   arc-*-*)
 517     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 518     ;;
 519   arm-semi-aof )
 520     ;;
 521   arm-*-coff | strongarm-*-coff | xscale-*-coff)
 522     noconfigdirs="$noconfigdirs ${libgcj}"
 523     libgloss_dir=arm
 524     ;;
 525   arm-*-elf* | strongarm-*-elf* | xscale-*-elf* | arm*-*-eabi* )
 526     noconfigdirs="$noconfigdirs target-libffi target-qthreads"
 527     libgloss_dir=arm
 528     ;;
 529   arm*-*-linux-gnueabi)
 530     noconfigdirs="$noconfigdirs target-qthreads"
 531     noconfigdirs="$noconfigdirs target-libobjc"
 532     case ${with_newlib} in
 533       no) noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 534     esac
 535     libgloss_dir=arm
 536     ;;
 537   arm*-*-symbianelf*)
 538     noconfigdirs="$noconfigdirs ${libgcj} target-libiberty"
 539     libgloss_dir=arm
 540     ;;
 541   arm-*-pe*)
 542     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 543     ;;
 544   thumb-*-coff)
 545     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 546     ;;
 547   thumb-*-elf)
 548     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 549     ;;
 550   thumb-*-pe)
 551     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 552     ;;
 553   arm-*-riscix*)
 554     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 555     ;;
 556   avr-*-*)
 557     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 558     ;;
 559   bfin-*-*)
 560     noconfigdirs="$noconfigdirs gdb"
 561     if test x${is_cross_compiler} != xno ; then
 562       target_configdirs="${target_configdirs} target-bsp target-cygmon"
 563     fi
 564     ;;
 565   c4x-*-* | tic4x-*-*)
 566     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 567     ;;
 568   c54x*-*-* | tic54x-*-*)
 569     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj} gcc gdb newlib"
 570     ;;
 571   cris-*-* | crisv32-*-*)
 572     unsupported_languages="$unsupported_languages java"
 573     case "${target}" in
 574       *-*-aout)
 575         unsupported_languages="$unsupported_languages fortran"
 576         noconfigdirs="$noconfigdirs target-libffi target-boehm-gc";;
 577       *-*-elf)
 578         noconfigdirs="$noconfigdirs target-boehm-gc";;
 579       *-*-linux*)
 580         noconfigdirs="$noconfigdirs target-newlib target-libgloss";;
 581       *)
 582         unsupported_languages="$unsupported_languages fortran"
 583         noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss";;
 584     esac
 585     libgloss_dir=cris
 586     ;;
 587   crx-*-*)
 588     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-mudflap ${libgcj}"
 589     ;;
 590   d10v-*-*)
 591     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 592     ;;
 593   d30v-*-*)
 594     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 595     ;;
 596   ep9312-*-elf | ep9312-*-coff)
 597     libgloss_dir=arm
 598     ;;
 599   fr30-*-elf*)
 600     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 601     ;;
 602   frv-*-*)
 603     noconfigdirs="$noconfigdirs ${libgcj}"
 604     ;;
 605   h8300*-*-*)
 606     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 607     ;;
 608   h8500-*-*)
 609     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 610     ;;
 611   hppa1.1-*-osf* | hppa1.1-*-bsd* )
 612     ;;
 613   hppa*64*-*-linux* | parisc*64*-*-linux*)
 614     # In this case, it's because the hppa64-linux target is for
 615     # the kernel only at this point and has no libc, and thus no
 616     # headers, crt*.o, etc., all of which are needed by these.
 617     noconfigdirs="$noconfigdirs target-zlib"
 618     ;;
 619   parisc*-*-linux* | hppa*-*-linux*)
 620     ;;
 621   hppa*-*-*elf* | \
 622   hppa*-*-lites* | \
 623   hppa*-*-openbsd* | \
 624   hppa*64*-*-*)
 625     noconfigdirs="$noconfigdirs ${libgcj}"
 626     ;;
 627   hppa*-hp-hpux11*)
 628     noconfigdirs="$noconfigdirs ld shellutils"
 629     ;;
 630   hppa*-*-pro*)
 631     libgloss_dir=pa
 632     ;;
 633   hppa*-*-*)
 634     # According to Alexandre Oliva <aoliva@redhat.com>, libjava won't
 635     # build on HP-UX 10.20.
 636     noconfigdirs="$noconfigdirs ld shellutils ${libgcj}"
 637     ;;
 638   i960-*-*)
 639     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 640     ;;
 641   ia64*-*-elf*)
 642     # No gdb support yet.
 643     noconfigdirs="$noconfigdirs readline mmalloc libgui itcl gdb"
 644     ;;
 645   ia64*-**-hpux*)
 646     # No gdb or ld support yet.
 647     noconfigdirs="$noconfigdirs ${libgcj} readline mmalloc libgui itcl gdb ld"
 648     ;;
 649   i370-*-opened*)
 650     ;;
 651   i[[3456789]]86-*-coff | i[[3456789]]86-*-elf)
 652     noconfigdirs="$noconfigdirs ${libgcj}"
 653     libgloss_dir=i386
 654     ;;
 655   i[[3456789]]86-*-linux*)
 656     # The GCC port for glibc1 has no MD_FALLBACK_FRAME_STATE_FOR, so let's
 657     # not build java stuff by default.
 658     case "${target}" in
 659       *-*-*libc1*)
 660         noconfigdirs="$noconfigdirs ${libgcj}";;
 661     esac
 662
 663     # This section makes it possible to build newlib natively on linux.
 664     # If we are using a cross compiler then don't configure newlib.
 665     if test x${is_cross_compiler} != xno ; then
 666       noconfigdirs="$noconfigdirs target-newlib"
 667     fi
 668     noconfigdirs="$noconfigdirs target-libgloss"
 669     # If we are not using a cross compiler, do configure newlib.
 670     # Note however, that newlib will only be configured in this situation
 671     # if the --with-newlib option has been given, because otherwise
 672     # 'target-newlib' will appear in skipdirs.
 673     ;;
 674   i[[3456789]]86-*-mingw32*)
 675     target_configdirs="$target_configdirs target-winsup"
 676     noconfigdirs="$noconfigdirs expect target-libgloss target-newlib ${libgcj}"
 677     ;;
 678   x86_64-*-mingw*)
 679     target_configdirs="$target_configdirs target-winsup"
 680     noconfigdirs="$noconfigdirs expect target-libgloss target-newlib ${libgcj}"
 681     ;;
 682   *-*-cygwin*)
 683     target_configdirs="$target_configdirs target-libtermcap target-winsup"
 684     noconfigdirs="$noconfigdirs target-gperf target-libgloss ${libgcj}"
 685     # always build newlib if winsup directory is present.
 686     if test -d "$srcdir/winsup/cygwin"; then
 687       skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 688     elif test -d "$srcdir/newlib"; then
 689       echo "Warning: winsup/cygwin is missing so newlib can't be built."
 690     fi
 691     ;;
 692   i[[3456789]]86-moss-msdos | i[[3456789]]86-*-moss* | \
 693   i[[3456789]]86-*-uwin* | i[[3456789]]86-*-interix* )
 694     ;;
 695   i[[3456789]]86-*-pe)
 696     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 697     ;;
 698   i[[3456789]]86-*-sco3.2v5*)
 699     # The linker does not yet know about weak symbols in COFF,
 700     # and is not configured to handle mixed ELF and COFF.
 701     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 702     ;;
 703   i[[3456789]]86-*-sco*)
 704     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 705     ;;
 706   i[[3456789]]86-*-solaris2*)
 707     noconfigdirs="$noconfigdirs target-libgloss"
 708     ;;
 709   i[[3456789]]86-*-sysv4*)
 710     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 711     ;;
 712   i[[3456789]]86-*-beos*)
 713     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 714     ;;
 715   i[[3456789]]86-*-rdos*)
 716     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 717     ;;
 718   m32r-*-*)
 719     noconfigdirs="$noconfigdirs ${libgcj}"
 720     ;;
 721   m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
 722     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 723     libgloss_dir=m68hc11
 724     ;;
 725   m68k-*-elf*)
 726     noconfigdirs="$noconfigdirs ${libgcj}"
 727     ;;
 728   m68k-*-coff*)
 729     noconfigdirs="$noconfigdirs ${libgcj}"
 730     ;;
 731   m68*-*-* | fido-*-*)
 732     libgloss_dir=m68k
 733     ;;
 734   mcore-*-pe*)
 735   # The EPOC C++ environment does not support exceptions or rtti,
 736   # and so building libstdc++-v3 tends not to always work.
 737     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 738     ;;
 739   mmix-*-*)
 740     noconfigdirs="$noconfigdirs target-libffi target-boehm-gc gdb libgloss"
 741     unsupported_languages="$unsupported_languages fortran java"
 742     ;;
 743   mn10200-*-*)
 744     noconfigdirs="$noconfigdirs ${libgcj}"
 745     ;;
 746   mn10300-*-*)
 747     noconfigdirs="$noconfigdirs ${libgcj}"
 748     ;;
 749   mt-*-*)
 750     noconfigdirs="$noconfigdirs sim"
 751     ;;
 752   powerpc-*-aix*)
 753     # copied from rs6000-*-* entry
 754     noconfigdirs="$noconfigdirs gprof target-libgloss target-libssp ${libgcj}"
 755     ;;
 756   powerpc*-*-winnt* | powerpc*-*-pe* | ppc*-*-pe)
 757     target_configdirs="$target_configdirs target-winsup"
 758     noconfigdirs="$noconfigdirs gdb tcl tk make expect target-libgloss itcl gnuserv ${libgcj}"
 759     # always build newlib.
 760     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 761     ;;
 762     # This is temporary until we can link against shared libraries
 763   powerpcle-*-solaris*)
 764     noconfigdirs="$noconfigdirs gdb sim make tcl tk expect itcl gnuserv ${libgcj}"
 765     libgloss_dir=rs6000
 766     ;;
 767   powerpc-*-beos*)
 768     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 769     ;;
 770   powerpc-*-eabi)
 771     noconfigdirs="$noconfigdirs ${libgcj}"
 772     libgloss_dir=rs6000
 773     ;;
 774   powerpc-*-eabi* | powerpcle-*-eabi* | powerpc-*-rtems* )
 775     libgloss_dir=rs6000
 776     ;;
 777   rs6000-*-lynxos*)
 778     noconfigdirs="$noconfigdirs target-newlib gprof ${libgcj}"
 779     ;;
 780   rs6000-*-aix*)
 781     noconfigdirs="$noconfigdirs gprof target-libgloss target-libssp ${libgcj}"
 782     ;;
 783   rs6000-*-*)
 784     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 785     ;;
 786   m68k-apollo-*)
 787     noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss ${libgcj}"
 788     ;;
 789   mips*-sde-elf*)
 790     skipdirs="$skipdirs target-libiberty"
 791     noconfigdirs="$noconfigdirs ${libgcj}"
 792     if test x$with_newlib = xyes; then
 793       noconfigdirs="$noconfigdirs gprof"
 794     fi
 795     libgloss_dir=mips
 796     ;;
 797   mips*-*-irix5*)
 798     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 799     ;;
 800   mips*-*-irix6*)
 801     # Linking libjava exceeds command-line length limits on at least
 802     # IRIX 6.2, but not on IRIX 6.5.
 803     # Also, boehm-gc won't build on IRIX 6.5, according to Jeffrey Oldham
 804     # <oldham@codesourcery.com>
 805     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 806     ;;
 807   mips*-*-bsd*)
 808     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 809     ;;
 810   mips*-*-linux*)
 811     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 812     ;;
 813   mips*-*-*)
 814     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 815     libgloss_dir=mips
 816     ;;
 817   romp-*-*)
 818     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes target-libgloss ${libgcj}"
 819     ;;
 820   sh-*-* | sh64-*-*)
 821     case "${host}" in
 822       i[[3456789]]86-*-vsta) ;; # don't add gprof back in
 823       i[[3456789]]86-*-go32*) ;; # don't add gprof back in
 824       i[[3456789]]86-*-msdosdjgpp*) ;; # don't add gprof back in
 825       *) skipdirs=`echo " ${skipdirs} " | sed -e 's/ gprof / /'` ;;
 826     esac
 827     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 828     ;;
 829   sparclet-*-aout* | sparc86x-*-*)
 830     libgloss_dir=sparc
 831     ;;
 832   sparc-*-elf*)
 833     noconfigdirs="$noconfigdirs ${libgcj}"
 834     ;;
 835   sparc64-*-elf*)
 836     noconfigdirs="$noconfigdirs ${libgcj}"
 837     libgloss_dir=sparc
 838     ;;
 839   sparclite-*-*)
 840     noconfigdirs="$noconfigdirs ${libgcj}"
 841     libgloss_dir=sparc
 842     ;;
 843   sparc-*-sunos4*)
 844     noconfigdirs="$noconfigdirs ${libgcj}"
 845     if test x${is_cross_compiler} != xno ; then
 846            noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 847     else
 848            use_gnu_ld=no
 849     fi
 850     ;;
 851   sparc-*-solaris2.[[0-6]] | sparc-*-solaris2.[[0-6]].*)
 852     noconfigdirs="$noconfigdirs ${libgcj}"
 853     ;;
 854   sparc-*-solaris* | sparc64-*-solaris* | sparcv9-*-solaris*)
 855     ;;
 856   spu-*-*)
 857     skipdirs="target-libssp"
 858     ;;
 859   v810-*-*)
 860     noconfigdirs="$noconfigdirs bfd binutils gas gcc gdb ld target-libstdc++-v3 opcodes target-libgloss ${libgcj}"
 861     ;;
 862   v850-*-*)
 863     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 864     ;;
 865   v850e-*-*)
 866     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 867     ;;
 868   v850ea-*-*)
 869     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 870     ;;
 871   vax-*-vms)
 872     noconfigdirs="$noconfigdirs bfd binutils gdb ld target-newlib opcodes target-libgloss ${libgcj}"
 873     ;;
 874   vax-*-*)
 875     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 876     ;;
 877   xtensa*-*-*)
 878     noconfigdirs="$noconfigdirs ${libgcj}"
 879     ;;
 880   ip2k-*-*)
 881     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 882     ;;
 883   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
 884     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 885     ;;
 886   *-*-lynxos*)
 887     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 888     ;;
 889   *-*-*)
 890     noconfigdirs="$noconfigdirs ${libgcj}"
 891     ;;
 892 esac
 893
 894 # If we aren't building newlib, then don't build libgloss, since libgloss
 895 # depends upon some newlib header files.
 896 case "${noconfigdirs}" in
 897   *target-libgloss*) ;;
 898   *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
 899 esac
 900
 901 # Work in distributions that contain no compiler tools, like Autoconf.
 902 tentative_cc=""
 903 host_makefile_frag=/dev/null
 904 if test -d ${srcdir}/config ; then
 905 case "${host}" in
 906   m68k-hp-hpux*)
 907     # Avoid "too much defining" errors from HPUX compiler.
 908     tentative_cc="cc -Wp,-H256000"
 909     # If "ar" in $PATH is GNU ar, the symbol table may need rebuilding.
 910     # If it's HP/UX ar, this should be harmless.
 911     RANLIB="ar ts"
 912     ;;
 913   m68k-apollo-sysv*)
 914     tentative_cc="cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DUSG"
 915     ;;
 916   m68k-apollo-bsd*)
 917     #None of the Apollo compilers can compile gas or binutils.  The preprocessor
 918     # chokes on bfd, the compiler won't let you assign integers to enums, and
 919     # other problems.  Defining CC to gcc is a questionable way to say "don't use
 920     # the apollo compiler" (the preferred version of GCC could be called cc,
 921     # or whatever), but I'm not sure leaving CC as cc is any better...
 922     #CC=cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DNO_STDARG
 923     # Used to have BISON=yacc.
 924     tentative_cc=gcc
 925     ;;
 926   m88k-dg-dgux*)
 927     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 928     ;;
 929   m88k-harris-cxux*)
 930     # Under CX/UX, we want to tell the compiler to use ANSI mode.
 931     tentative_cc="cc -Xa"
 932     host_makefile_frag="config/mh-cxux"
 933     ;;
 934   m88k-motorola-sysv*)
 935     ;;
 936   mips*-dec-ultrix*)
 937     tentative_cc="cc -Wf,-XNg1000"
 938     host_makefile_frag="config/mh-decstation"
 939     ;;
 940   mips*-nec-sysv4*)
 941     # The C compiler on NEC MIPS SVR4 needs bigger tables.
 942     tentative_cc="cc -ZXNd=5000 -ZXNg=1000"
 943     host_makefile_frag="config/mh-necv4"
 944     ;;
 945   mips*-sgi-irix4*)
 946     # Tell compiler to use K&R C.  We can't compile under the SGI Ansi
 947     # environment.  Also bump switch table size so that cp-parse will
 948     # compile.  Bump string length limit so linker builds.
 949     tentative_cc="cc -cckr -Wf,-XNg1500 -Wf,-XNk1000 -Wf,-XNh2000 -Wf,-XNl8192"
 950     ;;
 951   mips*-*-sysv4*)
 952     host_makefile_frag="config/mh-sysv4"
 953     ;;
 954   mips*-*-sysv*)
 955     # This is for a MIPS running RISC/os 4.52C.
 956
 957     # This is needed for GDB, but needs to be in the top-level make because
 958     # if a library is compiled with the bsd headers and gets linked with the
 959     # sysv system libraries all hell can break loose (e.g. a jmp_buf might be
 960     # a different size).
 961     # ptrace(2) apparently has problems in the BSD environment.  No workaround is
 962     # known except to select the sysv environment.  Could we use /proc instead?
 963     # These "sysv environments" and "bsd environments" often end up being a pain.
 964     #
 965     # This is not part of CFLAGS because perhaps not all C compilers have this
 966     # option.
 967     tentative_cc="cc -systype sysv"
 968     ;;
 969   i370-ibm-opened*)
 970     tentative_cc="c89"
 971     ;;
 972   i[[3456789]]86-*-sysv5*)
 973     host_makefile_frag="config/mh-sysv5"
 974     ;;
 975   i[[3456789]]86-*-dgux*)
 976     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 977     host_makefile_frag="config/mh-dgux386"
 978     ;;
 979   i[[3456789]]86-ncr-sysv4.3*)
 980     # The MetaWare compiler will generate a copyright message unless you
 981     # turn it off by adding the -Hnocopyr flag.
 982     tentative_cc="cc -Hnocopyr"
 983     ;;
 984   i[[3456789]]86-ncr-sysv4*)
 985     # for an NCR 3000 (i486/SVR4) system.
 986     # The NCR 3000 ships with a MetaWare compiler installed as /bin/cc.
 987     # This compiler not only emits obnoxious copyright messages every time
 988     # you run it, but it chokes and dies on a whole bunch of GNU source
 989     # files.  Default to using the AT&T compiler installed in /usr/ccs/ATT/cc.
 990     tentative_cc="/usr/ccs/ATT/cc"
 991     host_makefile_frag="config/mh-ncr3000"
 992     ;;
 993   i[[3456789]]86-*-sco3.2v5*)
 994     ;;
 995   i[[3456789]]86-*-sco*)
 996     # The native C compiler botches some simple uses of const.  Unfortunately,
 997     # it doesn't defined anything like "__sco__" for us to test for in ansidecl.h.
 998     tentative_cc="cc -Dconst="
 999     host_makefile_frag="config/mh-sco"
1000     ;;
1001   i[[3456789]]86-*-udk*)
1002     host_makefile_frag="config/mh-sysv5"
1003     ;;
1004   i[[3456789]]86-*-solaris2*)
1005     host_makefile_frag="config/mh-sysv4"
1006     ;;
1007   i[[3456789]]86-*-msdosdjgpp*)
1008     host_makefile_frag="config/mh-djgpp"
1009     ;;
1010   *-cygwin*)
1011     host_makefile_frag="config/mh-cygwin"
1012     ;;
1013   *-mingw32*)
1014     host_makefile_frag="config/mh-mingw"
1015     ;;
1016   *-mingw64*)
1017     host_makefile_frag="config/mh-mingw"
1018     ;;
1019   *-interix*)
1020     host_makefile_frag="config/mh-interix"
1021     ;;
1022   vax-*-ultrix2*)
1023     # The old BSD pcc isn't up to compiling parts of gdb so use gcc
1024     tentative_cc=gcc
1025     ;;
1026   *-*-solaris2*)
1027     host_makefile_frag="config/mh-solaris"
1028     ;;
1029   m68k-sun-sunos*)
1030     # Sun's C compiler needs the -J flag to be able to compile cp-parse.c
1031     # without overflowing the jump tables (-J says to use a 32 bit table)
1032     tentative_cc="cc -J"
1033     ;;
1034   *-hp-hpux*)
1035     tentative_cc="cc -Wp,-H256000"
1036     ;;
1037   *-*-hiux*)
1038     tentative_cc="cc -Wp,-H256000"
1039     ;;
1040   rs6000-*-lynxos*)
1041     # /bin/cc is less than useful for our purposes.  Always use GCC
1042     tentative_cc="/usr/cygnus/progressive/bin/gcc"
1043     host_makefile_frag="config/mh-lynxrs6k"
1044     ;;
1045   powerpc-*-darwin*)
1046     host_makefile_frag="config/mh-ppc-darwin"
1047     ;;
1048   powerpc-*-aix*)
1049     host_makefile_frag="config/mh-ppc-aix"
1050     ;;
1051   rs6000-*-aix*)
1052     host_makefile_frag="config/mh-ppc-aix"
1053     ;;
1054   *-*-lynxos*)
1055     # /bin/cc is less than useful for our purposes.  Always use GCC
1056     tentative_cc="/bin/gcc"
1057     ;;
1058   *-*-sysv4*)
1059     host_makefile_frag="config/mh-sysv4"
1060     ;;
1061   # This is placed last to prevent interfering with the cases above.
1062   i[[3456789]]86-*-*)
1063     # Build the stage2 and stage3 compilers with -fomit-frame-pointer.
1064     host_makefile_frag="config/mh-x86omitfp"
1065     ;;
1066 esac
1067 fi
1068
1069 # If we aren't going to be using gcc, see if we can extract a definition
1070 # of CC from the fragment.
1071 # Actually, use the 'pre-extracted' version above.
1072 if test -z "${CC}" && test "${build}" = "${host}" ; then
1073   IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
1074   found=
1075   for dir in $PATH; do
1076     test -z "$dir" && dir=.
1077     if test -f $dir/gcc; then
1078       found=yes
1079       break
1080     fi
1081   done
1082   IFS="$save_ifs"
1083   if test -z "${found}" && test -n "${tentative_cc}" ; then
1084     CC=$tentative_cc
1085   fi
1086 fi
1087
1088 if test "${build}" != "${host}" ; then
1089   AR_FOR_BUILD=${AR_FOR_BUILD-ar}
1090   AS_FOR_BUILD=${AS_FOR_BUILD-as}
1091   CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1092   CXX_FOR_BUILD=${CXX_FOR_BUILD-g++}
1093   GCJ_FOR_BUILD=${GCJ_FOR_BUILD-gcj}
1094   GFORTRAN_FOR_BUILD=${GFORTRAN_FOR_BUILD-gfortran}
1095   DLLTOOL_FOR_BUILD=${DLLTOOL_FOR_BUILD-dlltool}
1096   LD_FOR_BUILD=${LD_FOR_BUILD-ld}
1097   NM_FOR_BUILD=${NM_FOR_BUILD-nm}
1098   RANLIB_FOR_BUILD=${RANLIB_FOR_BUILD-ranlib}
1099   WINDRES_FOR_BUILD=${WINDRES_FOR_BUILD-windres}
1100   WINDMC_FOR_BUILD=${WINDMC_FOR_BUILD-windmc}
1101 else
1102   AR_FOR_BUILD="\$(AR)"
1103   AS_FOR_BUILD="\$(AS)"
1104   CC_FOR_BUILD="\$(CC)"
1105   CXX_FOR_BUILD="\$(CXX)"
1106   GCJ_FOR_BUILD="\$(GCJ)"
1107   GFORTRAN_FOR_BUILD="\$(GFORTRAN)"
1108   DLLTOOL_FOR_BUILD="\$(DLLTOOL)"
1109   LD_FOR_BUILD="\$(LD)"
1110   NM_FOR_BUILD="\$(NM)"
1111   RANLIB_FOR_BUILD="\$(RANLIB)"
1112   WINDRES_FOR_BUILD="\$(WINDRES)"
1113   WINDMC_FOR_BUILD="\$(WINDMC)"
1114 fi
1115
1116 AC_PROG_CC
1117 AC_PROG_CXX
1118
1119 # We must set the default linker to the linker used by gcc for the correct
1120 # operation of libtool.  If LD is not defined and we are using gcc, try to
1121 # set the LD default to the ld used by gcc.
1122 if test -z "$LD"; then
1123   if test "$GCC" = yes; then
1124     case $build in
1125     *-*-mingw*)
1126       gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1127     *)
1128       gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1129     esac
1130     case $gcc_prog_ld in
1131     # Accept absolute paths.
1132     [[\\/]* | [A-Za-z]:[\\/]*)]
1133       LD="$gcc_prog_ld" ;;
1134     esac
1135   fi
1136 fi
1137
1138 ACX_PROG_GNAT
1139 ACX_PROG_CMP_IGNORE_INITIAL
1140
1141 # Check for GMP and MPFR
1142 gmplibs="-lmpfr -lgmp"
1143 gmpinc=
1144 have_gmp=no
1145
1146 # Specify a location for mpfr
1147 # check for this first so it ends up on the link line before gmp.
1148 AC_ARG_WITH(mpfr-dir, [  --with-mpfr-dir=PATH    this option has been REMOVED],
1149   AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed.
1150 Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH]))
1151
1152 AC_ARG_WITH(mpfr, [  --with-mpfr=PATH        specify prefix directory for installed MPFR package.
1153                           Equivalent to --with-mpfr-include=PATH/include
1154                           plus --with-mpfr-lib=PATH/lib])
1155 AC_ARG_WITH(mpfr_include, [  --with-mpfr-include=PATH
1156                           specify directory for installed MPFR include files])
1157 AC_ARG_WITH(mpfr_lib, [  --with-mpfr-lib=PATH    specify directory for the installed MPFR library])
1158
1159 if test "x$with_mpfr" != x; then
1160   gmplibs="-L$with_mpfr/lib $gmplibs"
1161   gmpinc="-I$with_mpfr/include"
1162 fi
1163 if test "x$with_mpfr_include" != x; then
1164   gmpinc="-I$with_mpfr_include"
1165 fi
1166 if test "x$with_mpfr_lib" != x; then
1167   gmplibs="-L$with_mpfr_lib $gmplibs"
1168 fi
1169 if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
1170   gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/.libs -L$$r/$(HOST_SUBDIR)/mpfr/_libs '"$gmplibs"
1171   gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr -I$$s/mpfr '"$gmpinc"
1172   # Do not test the mpfr version.  Assume that it is sufficient, since
1173   # it is in the source tree, and the library has not been built yet
1174   # but it would be included on the link line in the version check below
1175   # hence making the test fail.
1176   have_gmp=yes
1177 fi
1178
1179 # Specify a location for gmp
1180 AC_ARG_WITH(gmp-dir, [  --with-gmp-dir=PATH     this option has been REMOVED],
1181   AC_MSG_ERROR([The --with-gmp-dir=PATH option has been removed.
1182 Use --with-gmp=PATH or --with-gmp-include=PATH plus --with-gmp-lib=PATH]))
1183
1184 AC_ARG_WITH(gmp, [  --with-gmp=PATH         specify prefix directory for the installed GMP package.
1185                           Equivalent to --with-gmp-include=PATH/include
1186                           plus --with-gmp-lib=PATH/lib])
1187 AC_ARG_WITH(gmp_include, [  --with-gmp-include=PATH specify directory for installed GMP include files])
1188 AC_ARG_WITH(gmp_lib, [  --with-gmp-lib=PATH     specify directory for the installed GMP library])
1189
1190
1191 if test "x$with_gmp" != x; then
1192   gmplibs="-L$with_gmp/lib $gmplibs"
1193   gmpinc="-I$with_gmp/include $gmpinc"
1194 fi
1195 if test "x$with_gmp_include" != x; then
1196   gmpinc="-I$with_gmp_include $gmpinc"
1197 fi
1198 if test "x$with_gmp_lib" != x; then
1199   gmplibs="-L$with_gmp_lib $gmplibs"
1200 fi
1201 if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
1202   gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/.libs -L$$r/$(HOST_SUBDIR)/gmp/_libs '"$gmplibs"
1203   gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
1204   # Do not test the gmp version.  Assume that it is sufficient, since
1205   # it is in the source tree, and the library has not been built yet
1206   # but it would be included on the link line in the version check below
1207   # hence making the test fail.
1208   have_gmp=yes
1209 fi
1210
1211 if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
1212   have_gmp=yes
1213   saved_CFLAGS="$CFLAGS"
1214   CFLAGS="$CFLAGS $gmpinc"
1215   # Check GMP actually works
1216   AC_MSG_CHECKING([for correct version of gmp.h])
1217   AC_TRY_COMPILE([#include "gmp.h"],[
1218   #if __GNU_MP_VERSION < 4 || (__GNU_MP_VERSION == 4 && __GNU_MP_VERSION_MINOR < 1)
1219   choke me
1220   #endif
1221   ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1222
1223   if test x"$have_gmp" = xyes; then
1224     saved_LIBS="$LIBS"
1225     LIBS="$LIBS $gmplibs"
1226     dnl MPFR 2.2.1 is acceptable, but MPFR 2.3.0 is better.
1227     AC_MSG_CHECKING([for correct version of mpfr.h])
1228     AC_TRY_LINK([#include <gmp.h>
1229     #include <mpfr.h>],[
1230     #if MPFR_VERSION < MPFR_VERSION_NUM(2,2,1)
1231     choke me
1232     #endif
1233     mpfr_t n;
1234     mpfr_t x;
1235     int t;
1236     mpfr_init (n);
1237     mpfr_init (x);
1238     mpfr_atan2 (n, n, x, GMP_RNDN);
1239     mpfr_erfc (n, x, GMP_RNDN);
1240     mpfr_subnormalize (x, t, GMP_RNDN);
1241     ], [AC_TRY_LINK([#include <gmp.h>
1242     #include <mpfr.h>],[
1243     #if MPFR_VERSION < MPFR_VERSION_NUM(2,3,0)
1244     choke me
1245     #endif
1246     mpfr_t n; mpfr_init(n);
1247     ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1248      [AC_MSG_RESULT([no]); have_gmp=no])
1249       LIBS="$saved_LIBS"
1250   fi
1251   CFLAGS="$saved_CFLAGS"
1252
1253   if test x$have_gmp != xyes; then
1254     AC_MSG_ERROR([Building GCC requires GMP 4.1+ and MPFR 2.3.0+.
1255 Try the --with-gmp and/or --with-mpfr options to specify their locations.
1256 Copies of these libraries' source code can be found at their respective
1257 hosting sites as well as at ftp://gcc.gnu.org/pub/gcc/infrastructure/.
1258 See also http://gcc.gnu.org/install/prerequisites.html for additional info.
1259 If you obtained GMP and/or MPFR from a vendor distribution package, make
1260 sure that you have installed both the libraries and the header files.
1261 They may be located in separate packages.])
1262   fi
1263 fi
1264
1265 # Flags needed for both GMP and/or MPFR
1266 AC_SUBST(gmplibs)
1267 AC_SUBST(gmpinc)
1268
1269 # By default, C is the only stage 1 language.
1270 stage1_languages=,c,
1271
1272 # Figure out what language subdirectories are present.
1273 # Look if the user specified --enable-languages="..."; if not, use
1274 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1275 # go away some day.
1276 # NB:  embedded tabs in this IF block -- do not untabify
1277 if test -d ${srcdir}/gcc; then
1278   if test x"${enable_languages+set}" != xset; then
1279     if test x"${LANGUAGES+set}" = xset; then
1280       enable_languages="${LANGUAGES}"
1281         echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1282     else
1283       enable_languages=all
1284     fi
1285   else
1286     if test x"${enable_languages}" = x ||
1287        test x"${enable_languages}" = xyes;
1288        then
1289       echo configure.in: --enable-languages needs at least one language argument 1>&2
1290       exit 1
1291     fi
1292   fi
1293   enable_languages=`echo "${enable_languages}" | sed -e 's/[[   ,]][[   ,]]*/,/g' -e 's/,$//'`
1294
1295   # 'f95' is the old name for the 'fortran' language. We issue a warning
1296   # and make the substitution.
1297   case ,${enable_languages}, in
1298     *,f95,*)
1299       echo configure.in: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
1300       enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1301       ;;
1302   esac
1303
1304   # First scan to see if an enabled language requires some other language.
1305   # We assume that a given config-lang.in will list all the language
1306   # front ends it requires, even if some are required indirectly.
1307   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1308     case ${lang_frag} in
1309       ..) ;;
1310       # The odd quoting in the next line works around
1311       # an apparent bug in bash 1.12 on linux.
1312       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1313       *)
1314         # From the config-lang.in, get $language, $lang_requires
1315         language=
1316         lang_requires=
1317         . ${lang_frag}
1318         for other in ${lang_requires} ; do
1319           case ,${enable_languages}, in
1320             *,$other,*) ;;
1321             *,all,*) ;;
1322             *,$language,*)
1323               echo " \`$other' language required by \`$language'; enabling" 1>&2
1324               enable_languages="${enable_languages},${other}"
1325               ;;
1326           esac
1327         done
1328         ;;
1329     esac
1330   done
1331
1332   new_enable_languages=,c,
1333   missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
1334   potential_languages=,c,
1335
1336   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1337     case ${lang_frag} in
1338       ..) ;;
1339       # The odd quoting in the next line works around
1340       # an apparent bug in bash 1.12 on linux.
1341       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1342       *)
1343         # From the config-lang.in, get $language, $target_libs,
1344         # $lang_dirs, $boot_language, and $build_by_default
1345         language=
1346         target_libs=
1347         lang_dirs=
1348         subdir_requires=
1349         boot_language=no
1350         build_by_default=yes
1351         . ${lang_frag}
1352         if test x${language} = x; then
1353           echo "${lang_frag} doesn't set \$language." 1>&2
1354           exit 1
1355         fi
1356
1357         case ,${enable_languages}, in
1358           *,${language},*)
1359             # Language was explicitly selected; include it.
1360             add_this_lang=yes
1361             ;;
1362           *,all,*)
1363             # 'all' was selected, select it if it is a default language
1364             add_this_lang=${build_by_default}
1365             ;;
1366           *)
1367             add_this_lang=no
1368             ;;
1369         esac
1370
1371         # Disable languages that need other directories if these aren't available.
1372         for i in $subdir_requires; do
1373           test -f "$srcdir/gcc/$i/config-lang.in" && continue
1374           case ,${enable_languages}, in
1375             *,${language},*)
1376               # Specifically requested language; tell them.
1377               AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
1378               ;;
1379             *)
1380               # Silently disable.
1381               add_this_lang=unsupported
1382               ;;
1383           esac
1384         done
1385
1386         # Disable Ada if no preexisting GNAT is available.
1387         case ,${enable_languages},:${language}:${have_gnat} in
1388           *,${language},*:ada:no)
1389             # Specifically requested language; tell them.
1390             AC_MSG_ERROR([GNAT is required to build $language])
1391             ;;
1392           *:ada:no)
1393             # Silently disable.
1394             add_this_lang=unsupported
1395             ;;
1396         esac
1397
1398         # Disable a language that is unsupported by the target.
1399         case " $unsupported_languages " in
1400           *" $language "*)
1401             add_this_lang=unsupported
1402             ;;
1403         esac
1404
1405         case $add_this_lang in
1406           unsupported)
1407             # Remove language-dependent dirs.
1408             eval noconfigdirs='"$noconfigdirs "'\"$target_libs $lang_dirs\"
1409             ;;
1410           no)
1411             # Remove language-dependent dirs; still show language as supported.
1412             eval noconfigdirs='"$noconfigdirs "'\"$target_libs $lang_dirs\"
1413             potential_languages="${potential_languages}${language},"
1414             ;;
1415           yes)
1416             new_enable_languages="${new_enable_languages}${language},"
1417             potential_languages="${potential_languages}${language},"
1418             missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
1419             case ${boot_language} in
1420               yes)
1421                 # Add to (comma-separated) list of stage 1 languages.
1422                 stage1_languages="${stage1_languages}${language},"
1423                 ;;
1424             esac
1425             ;;
1426         esac
1427         ;;
1428     esac
1429   done
1430
1431   AC_ARG_ENABLE(stage1-languages,
1432 [  --enable-stage1-languages@<:@=all@:>@   choose additional languages to build during
1433                           stage1.  Mostly useful for compiler development.],
1434   [case ,${enable_stage1_languages}, in
1435     ,no,|,,)
1436       # Set it to something that will have no effect in the loop below
1437       enable_stage1_languages=c ;;
1438     ,yes,)
1439       enable_stage1_languages=`echo $new_enable_languages | \
1440         sed -e "s/^,//" -e "s/,$//" ` ;;
1441     *,all,*)
1442       enable_stage1_languages=`echo ,$enable_stage1_languages, | \
1443         sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
1444   esac
1445
1446   # Add "good" languages from enable_stage1_languages to stage1_languages,
1447   # while "bad" languages go in missing_languages.  Leave no duplicates.
1448   for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
1449     case $potential_languages in
1450       *,$i,*)
1451         case $stage1_languages in
1452           *,$i,*) ;;
1453           *) stage1_languages="$stage1_languages$i," ;;
1454         esac ;;
1455       *)
1456         case $missing_languages in
1457           *,$i,*) ;;
1458           *) missing_languages="$missing_languages$i," ;;
1459         esac ;;
1460      esac
1461   done])
1462
1463   # Remove leading/trailing commas that were added for simplicity
1464   potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
1465   missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
1466   stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
1467   new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
1468
1469   if test "x$missing_languages" != x; then
1470     AC_MSG_ERROR([
1471 The following requested languages could not be built: ${missing_languages}
1472 Supported languages are: ${potential_languages}])
1473   fi
1474   if test "x$new_enable_languages" != "x$enable_languages"; then
1475     echo The following languages will be built: ${new_enable_languages}
1476     enable_languages="$new_enable_languages"
1477   fi
1478
1479   AC_SUBST(stage1_languages)
1480   ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" `
1481 fi
1482
1483 # Handle --disable-<component> generically.
1484 for dir in $configdirs $build_configdirs $target_configdirs ; do
1485   dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
1486   varname=`echo $dirname | sed -e s/+/_/g`
1487   if eval test x\${enable_${varname}} "=" xno ; then
1488     noconfigdirs="$noconfigdirs $dir"
1489   fi
1490 done
1491
1492 # Check for Boehm's garbage collector
1493 AC_ARG_ENABLE(objc-gc,
1494 [  --enable-objc-gc        enable use of Boehm's garbage collector with the
1495                           GNU Objective-C runtime],
1496 [case ,${enable_languages},:${enable_objc_gc}:${noconfigdirs} in
1497   *,objc,*:*:yes:*target-boehm-gc*)
1498     AC_MSG_ERROR([Boehm's garbage collector was requested yet not supported in this configuration])
1499     ;;
1500 esac])
1501
1502 # Make sure we only build Boehm's garbage collector if required.
1503 case ,${enable_languages},:${enable_objc_gc} in
1504   *,objc,*:yes)
1505     # Keep target-boehm-gc if requested for Objective-C.
1506     ;;
1507   *)
1508     # Otherwise remove target-boehm-gc depending on target-libjava.
1509     if echo " ${noconfigdirs} " | grep "target-libjava" >/dev/null 2>&1; then
1510       noconfigdirs="$noconfigdirs target-boehm-gc"
1511     fi
1512     ;;
1513 esac
1514
1515 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
1516 # $build_configdirs and $target_configdirs.
1517 # If we have the source for $noconfigdirs entries, add them to $notsupp.
1518
1519 notsupp=""
1520 for dir in . $skipdirs $noconfigdirs ; do
1521   dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
1522   if test $dir != .  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1523     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
1524     if test -r $srcdir/$dirname/configure ; then
1525       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1526         true
1527       else
1528         notsupp="$notsupp $dir"
1529       fi
1530     fi
1531   fi
1532   if test $dir != .  && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1533     build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
1534     if test -r $srcdir/$dirname/configure ; then
1535       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1536         true
1537       else
1538         notsupp="$notsupp $dir"
1539       fi
1540     fi
1541   fi
1542   if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1543     target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
1544     if test -r $srcdir/$dirname/configure ; then
1545       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1546         true
1547       else
1548         notsupp="$notsupp $dir"
1549       fi
1550     fi
1551   fi
1552 done
1553
1554 # Sometimes the tools are distributed with libiberty but with no other
1555 # libraries.  In that case, we don't want to build target-libiberty.
1556 # Don't let libgcc imply libiberty either.
1557 if test -n "${target_configdirs}" ; then
1558   libgcc=
1559   others=
1560   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
1561     if test "$i" = "libgcc"; then
1562       libgcc=target-libgcc
1563     elif test "$i" != "libiberty" ; then
1564       if test -r $srcdir/$i/configure ; then
1565         others=yes;
1566         break;
1567       fi
1568     fi
1569   done
1570   if test -z "${others}" ; then
1571     target_configdirs=$libgcc
1572   fi
1573 fi
1574
1575 # Quietly strip out all directories which aren't configurable in this tree.
1576 # This relies on all configurable subdirectories being autoconfiscated, which
1577 # is now the case.
1578 build_configdirs_all="$build_configdirs"
1579 build_configdirs=
1580 for i in ${build_configdirs_all} ; do
1581   j=`echo $i | sed -e s/build-//g`
1582   if test -f ${srcdir}/$j/configure ; then
1583     build_configdirs="${build_configdirs} $i"
1584   fi
1585 done
1586
1587 configdirs_all="$configdirs"
1588 configdirs=
1589 for i in ${configdirs_all} ; do
1590   if test -f ${srcdir}/$i/configure ; then
1591     configdirs="${configdirs} $i"
1592   fi
1593 done
1594
1595 target_configdirs_all="$target_configdirs"
1596 target_configdirs=
1597 for i in ${target_configdirs_all} ; do
1598   j=`echo $i | sed -e s/target-//g`
1599   if test -f ${srcdir}/$j/configure ; then
1600     target_configdirs="${target_configdirs} $i"
1601   fi
1602 done
1603
1604 # Produce a warning message for the subdirs we can't configure.
1605 # This isn't especially interesting in the Cygnus tree, but in the individual
1606 # FSF releases, it's important to let people know when their machine isn't
1607 # supported by the one or two programs in a package.
1608
1609 if test -n "${notsupp}" && test -z "${norecursion}" ; then
1610   # If $appdirs is non-empty, at least one of those directories must still
1611   # be configured, or we error out.  (E.g., if the gas release supports a
1612   # specified target in some subdirs but not the gas subdir, we shouldn't
1613   # pretend that all is well.)
1614   if test -n "$appdirs" ; then
1615     for dir in $appdirs ; do
1616       if test -r $dir/Makefile.in ; then
1617         if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1618           appdirs=""
1619           break
1620         fi
1621         if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
1622           appdirs=""
1623           break
1624         fi
1625       fi
1626     done
1627     if test -n "$appdirs" ; then
1628       echo "*** This configuration is not supported by this package." 1>&2
1629       exit 1
1630     fi
1631   fi
1632   # Okay, some application will build, or we don't care to check.  Still
1633   # notify of subdirs not getting built.
1634   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
1635   echo "    ${notsupp}" 1>&2
1636   echo "    (Any other directories should still work fine.)" 1>&2
1637 fi
1638
1639 case "$host" in
1640   *msdosdjgpp*)
1641     enable_gdbtk=no ;;
1642 esac
1643
1644 # To find our prefix, in gcc_cv_tool_prefix.
1645 ACX_TOOL_DIRS
1646
1647 copy_dirs=
1648
1649 AC_ARG_WITH([build-sysroot],
1650   [  --with-build-sysroot=SYSROOT
1651                           use sysroot as the system root during the build],
1652   [if test x"$withval" != x ; then
1653      SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
1654    fi],
1655   [SYSROOT_CFLAGS_FOR_TARGET=])
1656 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
1657
1658 AC_ARG_WITH([debug-prefix-map],
1659   [  --with-debug-prefix-map='A=B C=D ...'
1660                              map A to B, C to D ... in debug information],
1661   [if test x"$withval" != x; then
1662      DEBUG_PREFIX_CFLAGS_FOR_TARGET=
1663      for debug_map in $withval; do
1664        DEBUG_PREFIX_CFLAGS_FOR_TARGET="$DEBUG_PREFIX_CFLAGS_FOR_TARGET -fdebug-prefix-map=$debug_map"
1665      done
1666    fi],
1667   [DEBUG_PREFIX_CFLAGS_FOR_TARGET=])
1668 AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
1669
1670 # Handle --with-headers=XXX.  If the value is not "yes", the contents of
1671 # the named directory are copied to $(tooldir)/sys-include.
1672 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
1673   if test x${is_cross_compiler} = xno ; then
1674     echo 1>&2 '***' --with-headers is only supported when cross compiling
1675     exit 1
1676   fi
1677   if test x"${with_headers}" != xyes ; then
1678     x=${gcc_cv_tool_prefix}
1679     copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
1680   fi
1681 fi
1682
1683 # Handle --with-libs=XXX.  If the value is not "yes", the contents of
1684 # the name directories are copied to $(tooldir)/lib.  Multiple directories
1685 # are permitted.
1686 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
1687   if test x${is_cross_compiler} = xno ; then
1688     echo 1>&2 '***' --with-libs is only supported when cross compiling
1689     exit 1
1690   fi
1691   if test x"${with_libs}" != xyes ; then
1692     # Copy the libraries in reverse order, so that files in the first named
1693     # library override files in subsequent libraries.
1694     x=${gcc_cv_tool_prefix}
1695     for l in ${with_libs}; do
1696       copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
1697     done
1698   fi
1699 fi
1700
1701 # Set with_gnu_as and with_gnu_ld as appropriate.
1702 #
1703 # This is done by determining whether or not the appropriate directory
1704 # is available, and by checking whether or not specific configurations
1705 # have requested that this magic not happen.
1706 #
1707 # The command line options always override the explicit settings in
1708 # configure.in, and the settings in configure.in override this magic.
1709 #
1710 # If the default for a toolchain is to use GNU as and ld, and you don't
1711 # want to do that, then you should use the --without-gnu-as and
1712 # --without-gnu-ld options for the configure script.
1713
1714 if test x${use_gnu_as} = x &&
1715    echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
1716   with_gnu_as=yes
1717   extra_host_args="$extra_host_args --with-gnu-as"
1718 fi
1719
1720 if test x${use_gnu_ld} = x &&
1721    echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 ; then
1722   with_gnu_ld=yes
1723   extra_host_args="$extra_host_args --with-gnu-ld"
1724 fi
1725
1726 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
1727 # can detect this case.
1728
1729 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
1730   with_newlib=yes
1731   extra_host_args="$extra_host_args --with-newlib"
1732 fi
1733
1734 # Handle ${copy_dirs}
1735 set fnord ${copy_dirs}
1736 shift
1737 while test $# != 0 ; do
1738   if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
1739     :
1740   else
1741     echo Copying $1 to $2
1742
1743     # Use the install script to create the directory and all required
1744     # parent directories.
1745     if test -d $2 ; then
1746       :
1747     else
1748       echo >config.temp
1749       ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
1750     fi
1751
1752     # Copy the directory, assuming we have tar.
1753     # FIXME: Should we use B in the second tar?  Not all systems support it.
1754     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
1755
1756     # It is the responsibility of the user to correctly adjust all
1757     # symlinks.  If somebody can figure out how to handle them correctly
1758     # here, feel free to add the code.
1759
1760     echo $1 > $2/COPIED
1761   fi
1762   shift; shift
1763 done
1764
1765 # Determine a target-dependent exec_prefix that the installed
1766 # gcc will search in.  Keep this list sorted by triplet, with
1767 # the *-*-osname triplets last.
1768 md_exec_prefix=
1769 case "${target}" in
1770   alpha*-*-*vms*)
1771     md_exec_prefix=/gnu/lib/gcc-lib
1772     ;;
1773   i[[34567]]86-pc-msdosdjgpp*)
1774     md_exec_prefix=/dev/env/DJDIR/bin
1775     ;;
1776   i[[34567]]86-*-sco3.2v5*)
1777     if test $with_gnu_as = yes; then
1778       md_exec_prefix=/usr/gnu/bin
1779     else
1780       md_exec_prefix=/usr/ccs/bin/elf
1781     fi
1782     ;;
1783
1784   mn10300-*-* | \
1785   powerpc-*-chorusos* | \
1786   powerpc*-*-eabi* | \
1787   powerpc*-*-sysv* | \
1788   powerpc*-*-kaos* | \
1789   s390x-ibm-tpf*)
1790     md_exec_prefix=/usr/ccs/bin
1791     ;;
1792   sparc64-*-elf*)
1793     ;;
1794   v850*-*-*)
1795     md_exec_prefix=/usr/ccs/bin
1796     ;;
1797   xtensa*-*-elf*)
1798     ;;
1799
1800   *-*-beos* | \
1801   *-*-elf* | \
1802   *-*-hpux* | \
1803   *-*-netware* | \
1804   *-*-nto-qnx* | \
1805   *-*-rtems* | \
1806   *-*-solaris2* | \
1807   *-*-sysv[[45]]* | \
1808   *-*-vxworks* | \
1809   *-wrs-windiss)
1810     md_exec_prefix=/usr/ccs/bin
1811     ;;
1812 esac
1813
1814 extra_arflags_for_target=
1815 extra_nmflags_for_target=
1816 extra_ranlibflags_for_target=
1817 target_makefile_frag=/dev/null
1818 case "${target}" in
1819   mep*-*-*)
1820     target_makefile_frag="config/mt-mep"
1821     ;;
1822   spu-*-*)
1823     target_makefile_frag="config/mt-spu"
1824     ;;
1825   mips*-sde-elf*)
1826     target_makefile_frag="config/mt-sde"
1827     ;;
1828   mipsisa*-*-elfoabi*)
1829     target_makefile_frag="config/mt-mips-elfoabi"
1830     ;;
1831   *-*-netware*)
1832     target_makefile_frag="config/mt-netware"
1833     ;;
1834   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
1835     target_makefile_frag="config/mt-gnu"
1836     ;;
1837   *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
1838     # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
1839     # commands to handle both 32-bit and 64-bit objects.  These flags are
1840     # harmless if we're using GNU nm or ar.
1841     extra_arflags_for_target=" -X32_64"
1842     extra_nmflags_for_target=" -B -X32_64"
1843     ;;
1844   *-*-darwin*)
1845     # ranlib from Darwin requires the -c flag to look at common symbols.
1846     extra_ranlibflags_for_target=" -c"
1847     ;;
1848   mips*-*-pe | sh*-*-pe | *arm-wince-pe)
1849     target_makefile_frag="config/mt-wince"
1850     ;;
1851 esac
1852
1853 alphaieee_frag=/dev/null
1854 case $target in
1855   alpha*-*-*)
1856     # This just makes sure to use the -mieee option to build target libs.
1857     # This should probably be set individually by each library.
1858     alphaieee_frag="config/mt-alphaieee"
1859     ;;
1860 esac
1861
1862 # If --enable-target-optspace always use -Os instead of -O2 to build
1863 # the target libraries, similarly if it is not specified, use -Os
1864 # on selected platforms.
1865 ospace_frag=/dev/null
1866 case "${enable_target_optspace}:${target}" in
1867   yes:*)
1868     ospace_frag="config/mt-ospace"
1869     ;;
1870   :d30v-*)
1871     ospace_frag="config/mt-d30v"
1872     ;;
1873   :m32r-* | :d10v-* | :fr30-*)
1874     ospace_frag="config/mt-ospace"
1875     ;;
1876   no:* | :*)
1877     ;;
1878   *)
1879     echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
1880     ;;
1881 esac
1882
1883 # Default to using --with-stabs for certain targets.
1884 if test x${with_stabs} = x ; then
1885   case "${target}" in
1886   mips*-*-irix[[56]]*)
1887     ;;
1888   mips*-*-* | alpha*-*-osf*)
1889     with_stabs=yes;
1890     extra_host_args="${extra_host_args} --with-stabs"
1891     ;;
1892   esac
1893 fi
1894
1895 # hpux11 in 64bit mode has libraries in a weird place.  Arrange to find
1896 # them automatically.
1897 case "${host}" in
1898   hppa*64*-*-hpux11*)
1899     extra_host_args="$extra_host_args -x-libraries=/usr/lib/pa20_64 -x-includes=/usr/X11R6/include"
1900     ;;
1901 esac
1902
1903 # Some systems (e.g., one of the i386-aix systems the gas testers are
1904 # using) don't handle "\$" correctly, so don't use it here.
1905 tooldir='${exec_prefix}'/${target_noncanonical}
1906 build_tooldir=${tooldir}
1907
1908 # Create a .gdbinit file which runs the one in srcdir
1909 # and tells GDB to look there for source files.
1910
1911 if test -r ${srcdir}/.gdbinit ; then
1912   case ${srcdir} in
1913     .) ;;
1914     *) cat > ./.gdbinit <<EOF
1915 # ${NO_EDIT}
1916 dir ${srcdir}
1917 dir .
1918 source ${srcdir}/.gdbinit
1919 EOF
1920     ;;
1921   esac
1922 fi
1923
1924 # Make sure that the compiler is able to generate an executable.  If it
1925 # can't, we are probably in trouble.  We don't care whether we can run the
1926 # executable--we might be using a cross compiler--we only care whether it
1927 # can be created.  At this point the main configure script has set CC.
1928 we_are_ok=no
1929 echo "int main () { return 0; }" > conftest.c
1930 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
1931 if test $? = 0 ; then
1932   if test -s conftest || test -s conftest.exe ; then
1933     we_are_ok=yes
1934   fi
1935 fi
1936 case $we_are_ok in
1937   no)
1938     echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
1939     echo 1>&2 "*** You must set the environment variable CC to a working compiler."
1940     rm -f conftest*
1941     exit 1
1942     ;;
1943 esac
1944 rm -f conftest*
1945
1946 # The Solaris /usr/ucb/cc compiler does not appear to work.
1947 case "${host}" in
1948   sparc-sun-solaris2*)
1949       CCBASE="`echo ${CC-cc} | sed 's/ .*$//'`"
1950       if test "`type $CCBASE | sed 's/^[[^/]]*//'`" = "/usr/ucb/cc" ; then
1951           could_use=
1952           test -d /opt/SUNWspro/bin && could_use="/opt/SUNWspro/bin"
1953           if test -d /opt/cygnus/bin ; then
1954               if test "$could_use" = "" ; then
1955                   could_use="/opt/cygnus/bin"
1956               else
1957                   could_use="$could_use or /opt/cygnus/bin"
1958               fi
1959           fi
1960         if test "$could_use" = "" ; then
1961             echo "Warning: compilation may fail because you're using"
1962             echo "/usr/ucb/cc.  You should change your PATH or CC "
1963             echo "variable and rerun configure."
1964         else
1965             echo "Warning: compilation may fail because you're using"
1966             echo "/usr/ucb/cc, when you should use the C compiler from"
1967             echo "$could_use.  You should change your"
1968             echo "PATH or CC variable and rerun configure."
1969         fi
1970       fi
1971   ;;
1972 esac
1973
1974 case "${host}" in
1975   *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
1976   *-*-darwin* | *-*-rhapsody* ) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
1977   *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
1978 esac
1979
1980 # Record target_configdirs and the configure arguments for target and
1981 # build configuration in Makefile.
1982 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
1983 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
1984
1985 # Determine whether gdb needs tk/tcl or not.
1986 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
1987 # and in that case we want gdb to be built without tk.  Ugh!
1988 # In fact I believe gdb is the *only* package directly dependent on tk,
1989 # so we should be able to put the 'maybe's in unconditionally and
1990 # leave out the maybe dependencies when enable_gdbtk is false.  I'm not
1991 # 100% sure that that's safe though.
1992
1993 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
1994 case "$enable_gdbtk" in
1995   no)
1996     GDB_TK="" ;;
1997   yes)
1998     GDB_TK="${gdb_tk}" ;;
1999   *)
2000     # Only add the dependency on gdbtk when GDBtk is part of the gdb
2001     # distro.  Eventually someone will fix this and move Insight, nee
2002     # gdbtk to a separate directory.
2003     if test -d ${srcdir}/gdb/gdbtk ; then
2004       GDB_TK="${gdb_tk}"
2005     else
2006       GDB_TK=""
2007     fi
2008     ;;
2009 esac
2010 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
2011 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
2012
2013 # Strip out unwanted targets.
2014
2015 # While at that, we remove Makefiles if we were started for recursive
2016 # configuration, so that the top-level Makefile reconfigures them,
2017 # like we used to do when configure itself was recursive.
2018
2019 # Loop over modules.  $extrasub must be used with care, limiting as
2020 # much as possible the usage of range addresses.  That's because autoconf
2021 # splits the sed script to overcome limits in the number of commands,
2022 # and relying on carefully-timed sed passes may turn out to be very hard
2023 # to maintain later.  In this particular case, you just have to be careful
2024 # not to nest @if/@endif pairs, because configure will not warn you at all.
2025
2026 AC_ARG_ENABLE([bootstrap],
2027 [  --enable-bootstrap      enable bootstrapping @<:@yes if native build@:>@],,
2028 enable_bootstrap=default)
2029
2030 # Issue errors and warnings for invalid/strange bootstrap combinations.
2031 case "$configdirs" in
2032   *gcc*) have_compiler=yes ;;
2033   *) have_compiler=no ;;
2034 esac
2035
2036 case "$have_compiler:$host:$target:$enable_bootstrap" in
2037   *:*:*:no) ;;
2038
2039   # Default behavior.  Enable bootstrap if we have a compiler
2040   # and we are in a native configuration.
2041   yes:$build:$build:default)
2042     enable_bootstrap=yes ;;
2043
2044   *:*:*:default)
2045     enable_bootstrap=no ;;
2046
2047   # We have a compiler and we are in a native configuration, bootstrap is ok
2048   yes:$build:$build:yes)
2049     ;;
2050
2051   # Other configurations, but we have a compiler.  Assume the user knows
2052   # what he's doing.
2053   yes:*:*:yes)
2054     AC_MSG_WARN([trying to bootstrap a cross compiler])
2055     ;;
2056
2057   # No compiler: if they passed --enable-bootstrap explicitly, fail
2058   no:*:*:yes)
2059     AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
2060
2061   # Fail if wrong command line
2062   *)
2063     AC_MSG_ERROR([invalid option for --enable-bootstrap])
2064     ;;
2065 esac
2066
2067 # Adjust the toplevel makefile according to whether bootstrap was selected.
2068 case "$enable_bootstrap" in
2069   yes)
2070     bootstrap_suffix=bootstrap ;;
2071   no)
2072     bootstrap_suffix=no-bootstrap ;;
2073 esac
2074
2075 for module in ${build_configdirs} ; do
2076   if test -z "${no_recursion}" \
2077      && test -f ${build_subdir}/${module}/Makefile; then
2078     echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
2079     rm -f ${build_subdir}/${module}/Makefile
2080   fi
2081   extrasub="$extrasub
2082 /^@if build-$module\$/d
2083 /^@endif build-$module\$/d
2084 /^@if build-$module-$bootstrap_suffix\$/d
2085 /^@endif build-$module-$bootstrap_suffix\$/d"
2086 done
2087 for module in ${configdirs} ; do
2088   if test -z "${no_recursion}"; then
2089     for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
2090       if test -f ${file}; then
2091         echo 1>&2 "*** removing ${file} to force reconfigure"
2092         rm -f ${file}
2093       fi
2094     done
2095   fi
2096   extrasub="$extrasub
2097 /^@if $module\$/d
2098 /^@endif $module\$/d
2099 /^@if $module-$bootstrap_suffix\$/d
2100 /^@endif $module-$bootstrap_suffix\$/d"
2101 done
2102 for module in ${target_configdirs} ; do
2103   if test -z "${no_recursion}" \
2104      && test -f ${target_subdir}/${module}/Makefile; then
2105     echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
2106     rm -f ${target_subdir}/${module}/Makefile
2107   fi
2108   extrasub="$extrasub
2109 /^@if target-$module\$/d
2110 /^@endif target-$module\$/d
2111 /^@if target-$module-$bootstrap_suffix\$/d
2112 /^@endif target-$module-$bootstrap_suffix\$/d"
2113 done
2114
2115 extrasub="$extrasub
2116 /^@if /,/^@endif /d"
2117
2118 # Create the serialization dependencies.  This uses a temporary file.
2119
2120 AC_ARG_ENABLE([serial-configure],
2121 [  --enable-serial-@<:@{host,target,build}-@:>@configure
2122                           force sequential configuration of
2123                           sub-packages for the host, target or build
2124                           machine, or all sub-packages])
2125
2126 case ${enable_serial_configure} in
2127   yes)
2128     enable_serial_build_configure=yes
2129     enable_serial_host_configure=yes
2130     enable_serial_target_configure=yes
2131     ;;
2132 esac
2133
2134 # These force 'configure's to be done one at a time, to avoid problems
2135 # with contention over a shared config.cache.
2136 rm -f serdep.tmp
2137 echo '# serdep.tmp' > serdep.tmp
2138 olditem=
2139 test "x${enable_serial_build_configure}" = xyes &&
2140 for item in ${build_configdirs} ; do
2141   case ${olditem} in
2142     "") ;;
2143     *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
2144   esac
2145   olditem=${item}
2146 done
2147 olditem=
2148 test "x${enable_serial_host_configure}" = xyes &&
2149 for item in ${configdirs} ; do
2150   case ${olditem} in
2151     "") ;;
2152     *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
2153   esac
2154   olditem=${item}
2155 done
2156 olditem=
2157 test "x${enable_serial_target_configure}" = xyes &&
2158 for item in ${target_configdirs} ; do
2159   case ${olditem} in
2160     "") ;;
2161     *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
2162   esac
2163   olditem=${item}
2164 done
2165 serialization_dependencies=serdep.tmp
2166 AC_SUBST_FILE(serialization_dependencies)
2167
2168 # Base args.  Strip norecursion, cache-file, srcdir, host, build,
2169 # target, nonopt, and variable assignments.  These are the ones we
2170 # might not want to pass down to subconfigures.  Also strip
2171 # program-prefix, program-suffix, and program-transform-name, so that
2172 # we can pass down a consistent program-transform-name.
2173 baseargs=
2174 keep_next=no
2175 skip_next=no
2176 eval "set -- $ac_configure_args"
2177 for ac_arg
2178 do
2179   if test X"$skip_next" = X"yes"; then
2180     skip_next=no
2181     continue
2182   fi
2183   if test X"$keep_next" = X"yes"; then
2184     case $ac_arg in
2185       *\'*)
2186         ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2187     esac
2188     baseargs="$baseargs '$ac_arg'"
2189     keep_next=no
2190     continue
2191   fi
2192
2193   # Handle separated arguments.  Based on the logic generated by
2194   # autoconf 2.59.
2195   case $ac_arg in
2196     *=* | --config-cache | -C | -disable-* | --disable-* \
2197       | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
2198       | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
2199       | -with-* | --with-* | -without-* | --without-* | --x)
2200       separate_arg=no
2201       ;;
2202     -*)
2203       separate_arg=yes
2204       ;;
2205     *)
2206       separate_arg=no
2207       ;;
2208   esac
2209
2210   case "$ac_arg" in
2211     --no*)
2212       continue
2213       ;;
2214     --c* | \
2215     --sr* | \
2216     --ho* | \
2217     --bu* | \
2218     --t* | \
2219     --program-* | \
2220     -cache_file* | \
2221     -srcdir* | \
2222     -host* | \
2223     -build* | \
2224     -target* | \
2225     -program-prefix* | \
2226     -program-suffix* | \
2227     -program-transform-name* )
2228       skip_next=$separate_arg
2229       continue
2230       ;;
2231     -*)
2232       # An option.  Add it.
2233       case $ac_arg in
2234         *\'*)
2235           ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2236       esac
2237       baseargs="$baseargs '$ac_arg'"
2238       keep_next=$separate_arg
2239       ;;
2240     *)
2241       # Either a variable assignment, or a nonopt (triplet).  Don't
2242       # pass it down; let the Makefile handle this.
2243       continue
2244       ;;
2245   esac
2246 done
2247 # Remove the initial space we just introduced and, as these will be
2248 # expanded by make, quote '$'.
2249 baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
2250
2251 # Add in --program-transform-name, after --program-prefix and
2252 # --program-suffix have been applied to it.  Autoconf has already
2253 # doubled dollar signs and backslashes in program_transform_name; we want
2254 # the backslashes un-doubled, and then the entire thing wrapped in single
2255 # quotes, because this will be expanded first by make and then by the shell.
2256 # Also, because we want to override the logic in subdir configure scripts to
2257 # choose program_transform_name, replace any s,x,x, with s,y,y,.
2258 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
2259 ${program_transform_name}
2260 EOF_SED
2261 gcc_transform_name=`cat conftestsed.out`
2262 rm -f conftestsed.out
2263 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
2264 if test "$silent" = yes; then
2265   baseargs="$baseargs --silent"
2266 fi
2267
2268 # For the build-side libraries, we just need to pretend we're native,
2269 # and not use the same cache file.  Multilibs are neither needed nor
2270 # desired.
2271 build_configargs="--cache-file=../config.cache ${baseargs}"
2272
2273 # For host modules, accept cache file option, or specification as blank.
2274 case "${cache_file}" in
2275 "") # empty
2276   cache_file_option="" ;;
2277 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
2278   cache_file_option="--cache-file=${cache_file}" ;;
2279 *) # relative path
2280   cache_file_option="--cache-file=../${cache_file}" ;;
2281 esac
2282
2283 # Host dirs don't like to share a cache file either, horribly enough.
2284 # This seems to be due to autoconf 2.5x stupidity.
2285 host_configargs="--cache-file=./config.cache ${extra_host_args} ${baseargs}"
2286
2287 target_configargs=${baseargs}
2288
2289 # Passing a --with-cross-host argument lets the target libraries know
2290 # whether they are being built with a cross-compiler or being built
2291 # native.  However, it would be better to use other mechanisms to make the
2292 # sorts of decisions they want to make on this basis.  Please consider
2293 # this option to be deprecated.  FIXME.
2294 if test x${is_cross_compiler} = xyes ; then
2295   target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
2296 fi
2297
2298 # Default to --enable-multilib.
2299 if test x${enable_multilib} = x ; then
2300   target_configargs="--enable-multilib ${target_configargs}"
2301 fi
2302
2303 # Pass --with-newlib if appropriate.  Note that target_configdirs has
2304 # changed from the earlier setting of with_newlib.
2305 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
2306   target_configargs="--with-newlib ${target_configargs}"
2307 fi
2308
2309 # Different target subdirs use different values of certain variables
2310 # (notably CXX).  Worse, multilibs use *lots* of different values.
2311 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
2312 # it doesn't automatically accept command-line overrides of them.
2313 # This means it's not safe for target subdirs to share a cache file,
2314 # which is disgusting, but there you have it.  Hopefully this can be
2315 # fixed in future.  It's still worthwhile to use a cache file for each
2316 # directory.  I think.
2317
2318 # Pass the appropriate --build, --host, --target and --cache-file arguments.
2319 # We need to pass --target, as newer autoconf's requires consistency
2320 # for target_alias and gcc doesn't manage it consistently.
2321 target_configargs="--cache-file=./config.cache ${target_configargs}"
2322
2323 FLAGS_FOR_TARGET=
2324 case " $target_configdirs " in
2325  *" newlib "*)
2326   case " $target_configargs " in
2327   *" --with-newlib "*)
2328    case "$target" in
2329    *-cygwin*)
2330      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' ;;
2331    esac
2332
2333    # If we're not building GCC, don't discard standard headers.
2334    if test -d ${srcdir}/gcc; then
2335      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
2336
2337      if test "${build}" != "${host}"; then
2338        # On Canadian crosses, CC_FOR_TARGET will have already been set
2339        # by `configure', so we won't have an opportunity to add -Bgcc/
2340        # to it.  This is right: we don't want to search that directory
2341        # for binaries, but we want the header files in there, so add
2342        # them explicitly.
2343        FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include'
2344
2345        # Someone might think of using the pre-installed headers on
2346        # Canadian crosses, in case the installed compiler is not fully
2347        # compatible with the compiler being built.  In this case, it
2348        # would be better to flag an error than risking having
2349        # incompatible object files being constructed.  We can't
2350        # guarantee that an error will be flagged, but let's hope the
2351        # compiler will do it, when presented with incompatible header
2352        # files.
2353      fi
2354    fi
2355
2356    case "${target}-${is_cross_compiler}" in
2357    i[[3456789]]86-*-linux*-no)
2358       # Here host == target, so we don't need to build gcc,
2359       # so we don't want to discard standard headers.
2360       FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
2361       ;;
2362    *)
2363       # If we're building newlib, use its generic headers last, but search
2364       # for any libc-related directories first (so make it the last -B
2365       # switch).
2366       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
2367
2368       # If we're building libgloss, find the startup file, simulator library
2369       # and linker script.
2370       case " $target_configdirs " in
2371         *" libgloss "*)
2372         # Look for startup file, simulator library and maybe linker script.
2373         FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/'"$libgloss_dir"
2374         # Look for libnosys.a in case the target needs it.
2375         FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
2376         # Most targets have the linker script in the source directory.
2377         FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$s/libgloss/'"$libgloss_dir"
2378         ;;
2379       esac
2380       ;;
2381    esac
2382    ;;
2383   esac
2384   ;;
2385 esac
2386 case "$target" in
2387 *-mingw*)
2388   # Can't be handled as Cygwin above since Mingw does not use newlib.
2389   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include' ;;
2390 esac
2391
2392 # Allow the user to override the flags for
2393 # our build compiler if desired.
2394 if test x"${build}" = x"${host}" ; then
2395   CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
2396   CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
2397   LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
2398 fi
2399
2400 # On Canadian crosses, we'll be searching the right directories for
2401 # the previously-installed cross compiler, so don't bother to add
2402 # flags for directories within the install tree of the compiler
2403 # being built; programs in there won't even run.
2404 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
2405   # Search for pre-installed headers if nothing else fits.
2406   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
2407 fi
2408
2409 if test "x${use_gnu_ld}" = x &&
2410    echo " ${configdirs} " | grep " ld " > /dev/null ; then
2411   # Arrange for us to find uninstalled linker scripts.
2412   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
2413 fi
2414
2415 # Search for other target-specific linker scripts and such.
2416 case "${target}" in
2417   mep*)
2418     FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
2419     ;;
2420 esac
2421
2422 # Makefile fragments.
2423 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
2424 do
2425   eval fragval=\$$frag
2426   if test $fragval != /dev/null; then
2427     eval $frag=${srcdir}/$fragval
2428   fi
2429 done
2430 AC_SUBST_FILE(host_makefile_frag)
2431 AC_SUBST_FILE(target_makefile_frag)
2432 AC_SUBST_FILE(alphaieee_frag)
2433 AC_SUBST_FILE(ospace_frag)
2434
2435 # Miscellanea: directories, flags, etc.
2436 AC_SUBST(RPATH_ENVVAR)
2437 AC_SUBST(tooldir)
2438 AC_SUBST(build_tooldir)
2439 AC_SUBST(CONFIGURE_GDB_TK)
2440 AC_SUBST(GDB_TK)
2441 AC_SUBST(INSTALL_GDB_TK)
2442
2443 # Build module lists & subconfigure args.
2444 AC_SUBST(build_configargs)
2445 AC_SUBST(build_configdirs)
2446
2447 # Host module lists & subconfigure args.
2448 AC_SUBST(host_configargs)
2449 AC_SUBST(configdirs)
2450
2451 # Target module lists & subconfigure args.
2452 AC_SUBST(target_configargs)
2453
2454
2455 # Build tools.
2456 AC_SUBST(AR_FOR_BUILD)
2457 AC_SUBST(AS_FOR_BUILD)
2458 AC_SUBST(CC_FOR_BUILD)
2459 AC_SUBST(CFLAGS_FOR_BUILD)
2460 AC_SUBST(CXXFLAGS_FOR_BUILD)
2461 AC_SUBST(CXX_FOR_BUILD)
2462 AC_SUBST(DLLTOOL_FOR_BUILD)
2463 AC_SUBST(GCJ_FOR_BUILD)
2464 AC_SUBST(GFORTRAN_FOR_BUILD)
2465 AC_SUBST(LDFLAGS_FOR_BUILD)
2466 AC_SUBST(LD_FOR_BUILD)
2467 AC_SUBST(NM_FOR_BUILD)
2468 AC_SUBST(RANLIB_FOR_BUILD)
2469 AC_SUBST(WINDMC_FOR_BUILD)
2470 AC_SUBST(WINDRES_FOR_BUILD)
2471 AC_SUBST(config_shell)
2472
2473 # Generate default definitions for YACC, M4, LEX and other programs that run
2474 # on the build machine.  These are used if the Makefile can't locate these
2475 # programs in objdir.
2476 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
2477
2478 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
2479 case " $build_configdirs " in
2480   *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
2481   *" byacc "*) YACC='$$r/$(BUILD_SUBDIR)/byacc/byacc' ;;
2482 esac
2483
2484 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
2485 case " $build_configdirs " in
2486   *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
2487 esac
2488
2489 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
2490 case " $build_configdirs " in
2491   *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
2492 esac
2493
2494 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
2495 case " $build_configdirs " in
2496   *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
2497   *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
2498 esac
2499
2500 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
2501 case " $build_configdirs " in
2502   *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
2503 esac
2504
2505 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
2506 case " $build_configdirs " in
2507   *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
2508   *)
2509 changequote(,)
2510     # For an installed makeinfo, we require it to be from texinfo 4.6 or
2511     # higher, else we use the "missing" dummy.
2512     if ${MAKEINFO} --version \
2513        | egrep 'texinfo[^0-9]*(4\.([6-9]|[1-9][0-9])|[5-9]|[1-9][0-9])' >/dev/null 2>&1; then
2514       :
2515     else
2516       MAKEINFO="$MISSING makeinfo"
2517     fi
2518     ;;
2519 changequote([,])
2520 esac
2521
2522 # FIXME: expect and dejagnu may become build tools?
2523
2524 AC_CHECK_PROGS(EXPECT, expect, expect)
2525 case " $configdirs " in
2526   *" expect "*)
2527     test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
2528     ;;
2529 esac
2530
2531 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
2532 case " $configdirs " in
2533   *" dejagnu "*)
2534     test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
2535     ;;
2536 esac
2537
2538
2539 # Host tools.
2540 NCN_STRICT_CHECK_TOOLS(AR, ar)
2541 NCN_STRICT_CHECK_TOOLS(AS, as)
2542 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
2543 NCN_STRICT_CHECK_TOOLS(LD, ld)
2544 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
2545 NCN_STRICT_CHECK_TOOLS(NM, nm)
2546 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, :)
2547 NCN_STRICT_CHECK_TOOLS(STRIP, strip, :)
2548 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
2549 NCN_STRICT_CHECK_TOOLS(WINDMC, windmc)
2550 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
2551 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
2552 AC_SUBST(CC)
2553 AC_SUBST(CXX)
2554 AC_SUBST(CFLAGS)
2555 AC_SUBST(CXXFLAGS)
2556
2557 # Target tools.
2558 AC_ARG_WITH([build-time-tools],
2559   [  --with-build-time-tools=PATH
2560                           use given path to find target tools during the build],
2561   [case x"$withval" in
2562      x/*) ;;
2563      *)
2564        with_build_time_tools=
2565        AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
2566        ;;
2567    esac],
2568   [with_build_time_tools=])
2569
2570 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
2571 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
2572 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
2573 NCN_STRICT_CHECK_TARGET_TOOLS(GCJ_FOR_TARGET, gcj)
2574 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
2575
2576 ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
2577 ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
2578 ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
2579 ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
2580 ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
2581 ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
2582 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
2583 ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib, :)
2584 ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
2585 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
2586 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDMC_FOR_TARGET, windmc)
2587
2588 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
2589
2590 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
2591 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
2592 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2593 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
2594                 [gcc/g++ -B$$r/$(HOST_SUBDIR)/gcc/ -nostdinc++ `test ! -f $$r/$(TARGET_SUBDIR)/libstdc++-v3/scripts/testsuite_flags || $(SHELL) $$r/$(TARGET_SUBDIR)/libstdc++-v3/scripts/testsuite_flags --build-includes` -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs],
2595                 c++)
2596 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
2597                 [gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs],
2598                 c++)
2599 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
2600 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2601 GCC_TARGET_TOOL(gcj, GCJ_FOR_TARGET, GCJ,
2602                 [gcc/gcj -B$$r/$(HOST_SUBDIR)/gcc/], java)
2603 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
2604                 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
2605 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
2606 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
2607 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
2608 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
2609 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
2610 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip])
2611 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
2612 GCC_TARGET_TOOL(windmc, WINDMC_FOR_TARGET, WINDMC, [binutils/windmc])
2613
2614 AC_SUBST(FLAGS_FOR_TARGET)
2615 AC_SUBST(RAW_CXX_FOR_TARGET)
2616
2617 # Certain tools may need extra flags.
2618 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
2619 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
2620 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
2621
2622 # When building target libraries, except in a Canadian cross, we use
2623 # the same toolchain as the compiler we just built.
2624 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
2625 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
2626 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
2627 if test $host = $build; then
2628   case " $configdirs " in
2629     *" gcc "*)
2630       COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
2631       COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
2632       COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
2633       ;;
2634   esac
2635 fi
2636
2637 AC_SUBST(COMPILER_AS_FOR_TARGET)
2638 AC_SUBST(COMPILER_LD_FOR_TARGET)
2639 AC_SUBST(COMPILER_NM_FOR_TARGET)
2640
2641 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2642 AC_ARG_ENABLE(maintainer-mode,
2643 [  --enable-maintainer-mode enable make rules and dependencies not useful
2644                           (and sometimes confusing) to the casual installer],
2645       USE_MAINTAINER_MODE=$enableval,
2646       USE_MAINTAINER_MODE=no)
2647 AC_MSG_RESULT($USE_MAINTAINER_MODE)
2648 AC_SUBST(MAINTAINER_MODE_TRUE)
2649 AC_SUBST(MAINTAINER_MODE_FALSE)
2650 if test "$USE_MAINTAINER_MODE" = yes; then
2651   MAINTAINER_MODE_TRUE=
2652   MAINTAINER_MODE_FALSE='#'
2653 else
2654   MAINTAINER_MODE_TRUE='#'
2655   MAINTAINER_MODE_FALSE=
2656 fi
2657 MAINT=$MAINTAINER_MODE_TRUE
2658 AC_SUBST(MAINT)dnl
2659
2660 # ---------------------
2661 # GCC bootstrap support
2662 # ---------------------
2663
2664 # Stage specific cflags for build.
2665 stage1_cflags="-g"
2666 case $build in
2667   vax-*-*)
2668     case ${GCC} in
2669       yes) stage1_cflags="-g -Wa,-J" ;;
2670       *) stage1_cflags="-g -J" ;;
2671     esac ;;
2672 esac
2673
2674 # This is aimed to mimic bootstrap with a non-GCC compiler to catch problems.
2675 if test "$GCC" = yes; then
2676   saved_CFLAGS="$CFLAGS"
2677
2678   # Pass -fkeep-inline-functions for stage 1 if the GCC version supports it.
2679   CFLAGS="$CFLAGS -fkeep-inline-functions"
2680   AC_MSG_CHECKING([whether -fkeep-inline-functions is supported])
2681   AC_TRY_COMPILE([
2682 #if (__GNUC__ < 3) \
2683     || (__GNUC__ == 3 && (__GNUC_MINOR__ < 3 \
2684                           || (__GNUC_MINOR__ == 3 && __GNUC_PATCHLEVEL__ < 1)))
2685 #error http://gcc.gnu.org/PR29382
2686 #endif
2687     ],,
2688     [AC_MSG_RESULT([yes]); stage1_cflags="$stage1_cflags -fkeep-inline-functions"],
2689     [AC_MSG_RESULT([no])])
2690
2691   CFLAGS="$saved_CFLAGS"
2692 fi
2693
2694 AC_SUBST(stage1_cflags)
2695
2696 # Enable --enable-checking in stage1 of the compiler.
2697 AC_ARG_ENABLE(stage1-checking,
2698 [  --enable-stage1-checking@<:@=all@:>@   choose additional checking for stage1
2699                           of the compiler],
2700 [stage1_checking=--enable-checking=${enable_stage1_checking}],
2701 [if test "x$enable_checking" = xno || test "x$enable_checking" = x; then
2702   stage1_checking=--enable-checking=yes,types
2703 else
2704   stage1_checking=--enable-checking=$enable_checking,types
2705 fi])
2706 AC_SUBST(stage1_checking)
2707
2708 # Enable -Werror in bootstrap stage2 and later.
2709 AC_ARG_ENABLE(werror,
2710 [  --enable-werror         enable -Werror in bootstrap stage2 and later], [],
2711 [if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
2712   enable_werror=yes
2713 else
2714   enable_werror=no
2715 fi])
2716 case ${enable_werror} in
2717   yes) stage2_werror_flag="--enable-werror-always" ;;
2718   *) stage2_werror_flag="" ;;
2719 esac
2720 AC_SUBST(stage2_werror_flag)
2721
2722 # Flags needed to enable html installing and building
2723 AC_ARG_WITH(datarootdir,
2724 [  --with-datarootdir      use datarootdir as the data root directory.],
2725 [datarootdir="\${prefix}/${withval}"],
2726 [datarootdir="\${prefix}/share"])
2727
2728 AC_ARG_WITH(docdir,
2729 [  --with-docdir           install documentation in this directory.],
2730 [docdir="\${prefix}/${withval}"],
2731 [docdir="\${datarootdir}/doc"])
2732
2733 AC_ARG_WITH(pdfdir,
2734 [  --with-pdfdir           install pdf in this directory.],
2735 [pdfdir="\${prefix}/${withval}"],
2736 [pdfdir="\${docdir}"])
2737
2738 AC_ARG_WITH(htmldir,
2739 [  --with-htmldir          install html in this directory.],
2740 [htmldir="\${prefix}/${withval}"],
2741 [htmldir="\${docdir}"])
2742
2743 AC_SUBST(datarootdir)
2744 AC_SUBST(docdir)
2745 AC_SUBST(pdfdir)
2746 AC_SUBST(htmldir)
2747
2748 AC_OUTPUT(Makefile)