configure.in

   1 #   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
   2 #   2000, 2001, 2002, 2003, 2004, 2005, 2006 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(2.13)
  25 AC_CANONICAL_SYSTEM
  26 AC_ARG_PROGRAM
  27
  28 # Get 'install' or 'install-sh' and its variants.
  29 AC_PROG_INSTALL
  30 ACX_PROG_LN
  31 AC_PROG_LN_S
  32
  33 ### we might need to use some other shell than /bin/sh for running subshells
  34 ### If we are on Windows, search for the shell.  This will permit people
  35 ### to not have /bin/sh, but to be able to see /SOME/PATH/sh configure
  36 ### without also having to set CONFIG_SHELL.  This code will work when
  37 ### using bash, which sets OSTYPE.
  38 case "${OSTYPE}" in
  39 *win32*)
  40   if test x${CONFIG_SHELL} = x ; then
  41     if test ! -f /bin/sh ; then
  42       if test x${SHELL} != x && test -f ${SHELL} ; then
  43         CONFIG_SHELL=${SHELL}
  44         export CONFIG_SHELL
  45       else
  46         for prog in sh sh.exe bash bash.exe; do
  47           IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
  48           for dir in $PATH; do
  49             test -z "$dir" && dir=.
  50             if test -f $dir/$prog; then
  51               CONFIG_SHELL=$dir/$prog
  52               export CONFIG_SHELL
  53               break
  54             fi
  55           done
  56           IFS="$save_ifs"
  57           test -n "${CONFIG_SHELL}" && break
  58         done
  59       fi
  60     fi
  61   fi
  62   ;;
  63 esac
  64
  65 config_shell=${CONFIG_SHELL-/bin/sh}
  66
  67 progname=$0
  68 # if PWD already has a value, it is probably wrong.
  69 if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi
  70
  71 # Export original configure arguments for use by sub-configures.  These
  72 # will be expanded by make, so quote '$'.
  73 tmp="$progname $@"
  74 sed -e 's,\$,$$,g' <<EOF_SED > conftestsed.out
  75 $tmp
  76 EOF_SED
  77 TOPLEVEL_CONFIGURE_ARGUMENTS=`cat conftestsed.out`
  78 rm -f conftestsed.out
  79 AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS)
  80
  81 moveifchange=${srcdir}/move-if-change
  82
  83 srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
  84
  85 # We pass INSTALL explicitly to sub-makes.  Make sure that it is not
  86 # a relative path.
  87 if test "$INSTALL" = "${srcdir}/install-sh -c"; then
  88   INSTALL="${srcpwd}/install-sh -c"
  89 fi
  90
  91 # Set srcdir to "." if that's what it is.
  92 # This is important for multilib support.
  93 pwd=`${PWDCMD-pwd}`
  94 if test "${pwd}" = "${srcpwd}" ; then
  95   srcdir=.
  96 fi
  97
  98 topsrcdir=$srcpwd
  99
 100 extra_host_args=
 101
 102 ### To add a new directory to the tree, first choose whether it is a target
 103 ### or a host dependent tool.  Then put it into the appropriate list
 104 ### (library or tools, host or target), doing a dependency sort.
 105
 106 # Subdirs will be configured in the order listed in build_configdirs,
 107 # configdirs, or target_configdirs; see the serialization section below.
 108
 109 # Dependency sorting is only needed when *configuration* must be done in
 110 # a particular order.  In all cases a dependency should be specified in
 111 # the Makefile, whether or not it's implicitly specified here.
 112
 113 # Double entries in build_configdirs, configdirs, or target_configdirs may
 114 # cause circular dependencies and break everything horribly.
 115
 116 # these library is used by various programs built for the build
 117 # environment
 118 #
 119 build_libs="build-libiberty"
 120
 121 # these tools are built for the build environment
 122 build_tools="build-texinfo build-byacc build-flex build-bison build-m4 build-fixincludes"
 123
 124 # these libraries are used by various programs built for the host environment
 125 #
 126 host_libs="intl mmalloc libiberty opcodes bfd readline tcl tk itcl libgui zlib libcpp libdecnumber"
 127
 128 # these tools are built for the host environment
 129 # Note, the powerpc-eabi build depends on sim occurring before gdb in order to
 130 # know that we are building the simulator.
 131 # binutils, gas and ld appear in that order because it makes sense to run
 132 # "make check" in that particular order.
 133 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"
 134
 135 # libgcj represents the runtime libraries only used by gcj.
 136 libgcj="target-libffi \
 137         target-boehm-gc \
 138         target-zlib \
 139         target-qthreads \
 140         target-libjava"
 141
 142 # these libraries are built for the target environment, and are built after
 143 # the host libraries and the host tools (which may be a cross compiler)
 144 #
 145 target_libraries="target-libiberty \
 146                 target-libgloss \
 147                 target-newlib \
 148                 target-libstdc++-v3 \
 149                 target-libmudflap \
 150                 target-libssp \
 151                 target-libgfortran \
 152                 ${libgcj} \
 153                 target-libobjc \
 154                 target-libada \
 155                 target-libgomp"
 156
 157 # these tools are built using the target libraries, and are intended to
 158 # run only in the target environment
 159 #
 160 # note: any program that *uses* libraries that are in the "target_libraries"
 161 # list belongs in this list.  those programs are also very likely
 162 # candidates for the "native_only" list which follows
 163 #
 164 target_tools="target-examples target-groff target-gperf target-rda"
 165
 166 ################################################################################
 167
 168 ## All tools belong in one of the four categories, and are assigned above
 169 ## We assign ${configdirs} this way to remove all embedded newlines.  This
 170 ## is important because configure will choke if they ever get through.
 171 ## ${configdirs} is directories we build using the host tools.
 172 ## ${target_configdirs} is directories we build using the target tools.
 173 configdirs=`echo ${host_libs} ${host_tools}`
 174 target_configdirs=`echo ${target_libraries} ${target_tools}`
 175 build_configdirs=`echo ${build_libs} ${build_tools}`
 176
 177 ################################################################################
 178
 179 srcname="gnu development package"
 180
 181 # This gets set non-empty for some net releases of packages.
 182 appdirs=""
 183
 184 # Define is_cross_compiler to save on calls to 'test'.
 185 is_cross_compiler=
 186 if test x"${host}" = x"${target}" ; then
 187   is_cross_compiler=no
 188 else
 189   is_cross_compiler=yes
 190 fi
 191
 192 # Find the build and target subdir names.
 193 GCC_TOPLEV_SUBDIRS
 194
 195 # Skipdirs are removed silently.
 196 skipdirs=
 197 # Noconfigdirs are removed loudly.
 198 noconfigdirs=""
 199
 200 use_gnu_ld=
 201 # Make sure we don't let GNU ld be added if we didn't want it.
 202 if test x$with_gnu_ld = xno ; then
 203   use_gnu_ld=no
 204   noconfigdirs="$noconfigdirs ld"
 205 fi
 206
 207 use_gnu_as=
 208 # Make sure we don't let GNU as be added if we didn't want it.
 209 if test x$with_gnu_as = xno ; then
 210   use_gnu_as=no
 211   noconfigdirs="$noconfigdirs gas"
 212 fi
 213
 214 # some tools are so dependent upon X11 that if we're not building with X,
 215 # it's not even worth trying to configure, much less build, that tool.
 216
 217 case ${with_x} in
 218   yes | "") ;; # the default value for this tree is that X11 is available
 219   no)
 220     skipdirs="${skipdirs} tk itcl libgui"
 221     # We won't be able to build gdbtk without X.
 222     enable_gdbtk=no
 223     ;;
 224   *)  echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
 225 esac
 226
 227 # Some tools are only suitable for building in a "native" situation.
 228 # Remove these if host!=target.
 229 native_only="autoconf automake libtool fileutils find gawk gettext gzip hello indent m4 rcs recode sed shellutils tar textutils uudecode wdiff gprof target-groff guile perl time ash bash bzip2 prms gnuserv target-gperf"
 230
 231 # Similarly, some are only suitable for cross toolchains.
 232 # Remove these if host=target.
 233 cross_only="target-libgloss target-newlib target-opcodes"
 234
 235 case $is_cross_compiler in
 236   no) skipdirs="${skipdirs} ${cross_only}" ;;
 237   yes) skipdirs="${skipdirs} ${native_only}" ;;
 238 esac
 239
 240 # If both --with-headers and --with-libs are specified, default to
 241 # --without-newlib.
 242 if test x"${with_headers}" != x && test x"${with_headers}" != xno \
 243    && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
 244   if test x"${with_newlib}" = x ; then
 245     with_newlib=no
 246   fi
 247 fi
 248
 249 # Recognize --with-newlib/--without-newlib.
 250 case ${with_newlib} in
 251   no) skipdirs="${skipdirs} target-newlib" ;;
 252   yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
 253 esac
 254
 255 # Configure extra directories which are host specific
 256
 257 case "${host}" in
 258   *-cygwin*)
 259     configdirs="$configdirs libtermcap" ;;
 260 esac
 261
 262 # A target can indicate whether a language isn't supported for some reason.
 263 # Only spaces may be used in this macro; not newlines or tabs.
 264 unsupported_languages=
 265
 266 # Remove more programs from consideration, based on the host or
 267 # target this usually means that a port of the program doesn't
 268 # exist yet.
 269
 270 case "${host}" in
 271   hppa*64*-*-*)
 272     noconfigdirs="$noconfigdirs byacc"
 273     ;;
 274   i[[3456789]]86-*-vsta)
 275     noconfigdirs="$noconfigdirs tcl expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff guile perl itcl gnuserv gettext"
 276     ;;
 277   i[[3456789]]86-*-go32* | i[[3456789]]86-*-msdosdjgpp*)
 278     noconfigdirs="$noconfigdirs tcl tk expect dejagnu send-pr uudecode guile itcl gnuserv libffi"
 279     ;;
 280   i[[3456789]]86-*-mingw32*)
 281     # noconfigdirs="tcl tk expect dejagnu make texinfo bison patch flex byacc send-pr uudecode dejagnu diff guile perl itcl gnuserv"
 282     noconfigdirs="$noconfigdirs expect dejagnu autoconf automake send-pr rcs guile perl texinfo libtool"
 283     ;;
 284   i[[3456789]]86-*-beos*)
 285     noconfigdirs="$noconfigdirs tk itcl libgui gdb"
 286     ;;
 287   *-*-cygwin*)
 288     noconfigdirs="$noconfigdirs autoconf automake send-pr rcs guile perl"
 289     ;;
 290   *-*-netbsd*)
 291     noconfigdirs="$noconfigdirs rcs"
 292     ;;
 293   ppc*-*-pe)
 294     noconfigdirs="$noconfigdirs patch diff make tk tcl expect dejagnu autoconf automake texinfo bison send-pr gprof rcs guile perl itcl gnuserv"
 295     ;;
 296   powerpc-*-beos*)
 297     noconfigdirs="$noconfigdirs tk itcl libgui gdb dejagnu readline"
 298     ;;
 299 esac
 300
 301
 302 AC_ARG_ENABLE(libada,
 303 [  --enable-libada        Builds libada directory],
 304 ENABLE_LIBADA=$enableval,
 305 ENABLE_LIBADA=yes)
 306 if test "${ENABLE_LIBADA}" != "yes" ; then
 307   noconfigdirs="$noconfigdirs target-libada"
 308   noconfigdirs="$noconfigdirs gnattools"
 309 fi
 310
 311 AC_ARG_ENABLE(libssp,
 312 [  --enable-libssp        Builds libssp directory],
 313 ENABLE_LIBSSP=$enableval,
 314 ENABLE_LIBSSP=yes)
 315 if test "${ENABLE_LIBSSP}" != "yes" ; then
 316   noconfigdirs="$noconfigdirs target-libssp"
 317 fi
 318
 319 # Save it here so that, even in case of --enable-libgcj, if the Java
 320 # front-end isn't enabled, we still get libgcj disabled.
 321 libgcj_saved=$libgcj
 322 case $enable_libgcj in
 323 yes)
 324   # If we reset it here, it won't get added to noconfigdirs in the
 325   # target-specific build rules, so it will be forcibly enabled
 326   # (unless the Java language itself isn't enabled).
 327   libgcj=
 328   ;;
 329 no)
 330   # Make sure we get it printed in the list of not supported target libs.
 331   noconfigdirs="$noconfigdirs ${libgcj}"
 332   ;;
 333 esac
 334
 335
 336 # Allow --disable-libmudflap to exclude target-libmudflap
 337 case $enable_libmudflap in
 338 yes)
 339     ;;
 340 no)
 341     noconfigdirs="$noconfigdirs target-libmudflap"
 342     ;;
 343 "")
 344     case "${target}" in
 345     *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
 346         # Enable libmudflap by default in GNU and friends.
 347         ;;
 348     *-*-freebsd*)
 349         # Enable libmudflap by default in FreeBSD.
 350         ;;
 351     *)
 352         # Disable it by default everywhere else.
 353         noconfigdirs="$noconfigdirs target-libmudflap"
 354         ;;
 355     esac
 356 esac
 357
 358 # Allow --disable-libgomp to exclude target-libgomp
 359 case $enable_libgomp in
 360 yes)
 361     ;;
 362 no)
 363     noconfigdirs="$noconfigdirs target-libgomp"
 364     ;;
 365 "")
 366     # Enable libgomp by default on hosted POSIX systems.
 367     case "${target}" in
 368     *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
 369         ;;
 370     *-*-netbsd* | *-*-freebsd* | *-*-openbsd*)
 371         ;;
 372     *-*-solaris2* | *-*-sysv4* | *-*-irix* | *-*-osf* | *-*-hpux*)
 373         ;;
 374     *-*-darwin*)
 375         ;;
 376     *)
 377         noconfigdirs="$noconfigdirs target-libgomp"
 378         ;;
 379     esac
 380 esac
 381
 382
 383 case "${target}" in
 384   *-*-chorusos)
 385     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 386     ;;
 387   powerpc-*-darwin*)
 388     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes gdb gprof"
 389     noconfigdirs="$noconfigdirs sim target-rda"
 390     ;;
 391   *-*-darwin*)
 392     noconfigdirs="$noconfigdirs ld gas gdb gprof"
 393     noconfigdirs="$noconfigdirs sim target-rda"
 394     noconfigdirs="$noconfigdirs ${libgcj}"
 395     ;;
 396   *-*-freebsd[[12]] | *-*-freebsd[[12]].* | *-*-freebsd*aout*)
 397     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 398     ;;
 399   *-*-freebsd*)
 400     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 401     if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
 402         && test -f /usr/local/include/gmp.h; then
 403       with_gmp=/usr/local
 404     fi
 405
 406     # Skip some stuff that's unsupported on some FreeBSD configurations.
 407     case "${target}" in
 408       i*86-*-*) ;;
 409       alpha*-*-*) ;;
 410       *)
 411         noconfigdirs="$noconfigdirs ${libgcj}"
 412         ;;
 413     esac
 414     ;;
 415   *-*-kaos*)
 416     # Remove unsupported stuff on all kaOS configurations.
 417     skipdirs="target-libiberty ${libgcj} target-libstdc++-v3 target-librx"
 418     skipdirs="$skipdirs target-libobjc target-examples target-groff target-gperf"
 419     skipdirs="$skipdirs zlib fastjar target-libjava target-boehm-gc target-zlib"
 420     noconfigdirs="$noconfigdirs target-libgloss"
 421     ;;
 422   *-*-netbsd*)
 423     # Skip some stuff on all NetBSD configurations.
 424     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss"
 425
 426     # Skip some stuff that's unsupported on some NetBSD configurations.
 427     case "${target}" in
 428       i*86-*-netbsdelf*) ;;
 429       arm*-*-netbsdelf*) ;;
 430       *)
 431         noconfigdirs="$noconfigdirs ${libgcj}"
 432         ;;
 433     esac
 434     ;;
 435   *-*-netware*)
 436     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss ${libgcj} target-libmudflap"
 437     ;;
 438   *-*-rtems*)
 439     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 440     ;;
 441     # The tpf target doesn't support gdb yet.
 442   *-*-tpf*)
 443     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty ${libgcj} target-libmudflap gdb tcl tk libgui itcl"
 444     ;;
 445   *-*-uclinux*)
 446     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-rda ${libgcj}"
 447     ;;
 448   *-*-vxworks*)
 449     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty target-libstdc++-v3 ${libgcj}"
 450     ;;
 451   m32c-*-*)
 452     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 453     ;;
 454   alpha*-dec-osf*)
 455     # ld works, but does not support shared libraries.
 456     # newlib is not 64 bit ready.  I'm not sure about fileutils.
 457     # gas doesn't generate exception information.
 458     noconfigdirs="$noconfigdirs gas ld fileutils target-newlib target-libgloss"
 459     ;;
 460   alpha*-*-*vms*)
 461     noconfigdirs="$noconfigdirs gdb ld target-newlib target-libgloss ${libgcj}"
 462     ;;
 463   alpha*-*-linux*)
 464     # newlib is not 64 bit ready
 465     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 466     ;;
 467   alpha*-*-*)
 468     # newlib is not 64 bit ready
 469     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 470     ;;
 471   am33_2.0-*-linux*)
 472     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 473     ;;
 474   sh-*-linux*)
 475     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 476     ;;
 477   sh*-*-pe|mips*-*-pe|*arm-wince-pe)
 478     noconfigdirs="$noconfigdirs ${libgcj}"
 479     noconfigdirs="$noconfigdirs target-examples"
 480     noconfigdirs="$noconfigdirs target-libiberty texinfo send-pr"
 481     noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
 482     noconfigdirs="$noconfigdirs expect dejagnu"
 483     # the C++ libraries don't build on top of CE's C libraries
 484     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 485     noconfigdirs="$noconfigdirs target-newlib"
 486     case "${host}" in
 487       *-*-cygwin*) ;; # keep gdb and readline
 488       *) noconfigdirs="$noconfigdirs gdb readline"
 489          ;;
 490     esac
 491     ;;
 492   arc-*-*)
 493     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 494     ;;
 495   arm-semi-aof )
 496     ;;
 497   arm-*-coff | strongarm-*-coff | xscale-*-coff)
 498     noconfigdirs="$noconfigdirs ${libgcj}"
 499     ;;
 500   arm-*-elf* | strongarm-*-elf* | xscale-*-elf* | arm*-*-eabi* )
 501     noconfigdirs="$noconfigdirs target-libffi target-qthreads"
 502     ;;
 503   arm*-*-linux-gnueabi)
 504     noconfigdirs="$noconfigdirs target-libffi target-qthreads"
 505     noconfigdirs="$noconfigdirs target-libjava target-libobjc"
 506     ;;
 507   arm*-*-symbianelf*)
 508     noconfigdirs="$noconfigdirs ${libgcj} target-libiberty"
 509     ;;
 510   arm-*-pe*)
 511     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 512     ;;
 513   thumb-*-coff)
 514     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 515     ;;
 516   thumb-*-elf)
 517     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 518     ;;
 519   thumb-*-pe)
 520     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 521     ;;
 522   arm-*-riscix*)
 523     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 524     ;;
 525   avr-*-*)
 526     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 527     ;;
 528   bfin-*-*)
 529     noconfigdirs="$noconfigdirs target-libgloss gdb"
 530     if test x${is_cross_compiler} != xno ; then
 531       target_configdirs="${target_configdirs} target-bsp target-cygmon"
 532     fi
 533     ;;
 534   c4x-*-* | tic4x-*-*)
 535     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 536     ;;
 537   c54x*-*-* | tic54x-*-*)
 538     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj} gcc gdb newlib"
 539     ;;
 540   cris-*-* | crisv32-*-*)
 541     unsupported_languages="$unsupported_languages java"
 542     case "${target}" in
 543       *-*-aout)
 544         unsupported_languages="$unsupported_languages fortran"
 545         noconfigdirs="$noconfigdirs target-libffi target-boehm-gc";;
 546       *-*-elf)
 547         unsupported_languages="$unsupported_languages fortran"
 548         noconfigdirs="$noconfigdirs target-boehm-gc";;
 549       *-*-linux*)
 550         noconfigdirs="$noconfigdirs target-newlib target-libgloss";;
 551       *)
 552         unsupported_languages="$unsupported_languages fortran"
 553         noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss";;
 554     esac
 555     ;;
 556   crx-*-*)
 557     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-mudflap ${libgcj}"
 558     ;;
 559   d10v-*-*)
 560     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 561     ;;
 562   d30v-*-*)
 563     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 564     ;;
 565   fr30-*-elf*)
 566     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 567     ;;
 568   frv-*-*)
 569     noconfigdirs="$noconfigdirs ${libgcj}"
 570     ;;
 571   h8300*-*-*)
 572     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 573     ;;
 574   h8500-*-*)
 575     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 576     ;;
 577   hppa1.1-*-osf* | hppa1.1-*-bsd* )
 578     ;;
 579   hppa*64*-*-linux* | parisc*64*-*-linux*)
 580     # In this case, it's because the hppa64-linux target is for
 581     # the kernel only at this point and has no libc, and thus no
 582     # headers, crt*.o, etc., all of which are needed by these.
 583     noconfigdirs="$noconfigdirs target-zlib"
 584     ;;
 585   parisc*-*-linux* | hppa*-*-linux*)
 586     ;;
 587   hppa*-*-*elf* | \
 588   hppa*-*-lites* | \
 589   hppa*-*-openbsd* | \
 590   hppa*64*-*-*)
 591     noconfigdirs="$noconfigdirs ${libgcj}"
 592     ;;
 593   hppa*-*-*)
 594     # According to Alexandre Oliva <aoliva@redhat.com>, libjava won't
 595     # build on HP-UX 10.20.
 596     noconfigdirs="$noconfigdirs ld shellutils ${libgcj}"
 597     ;;
 598   i960-*-*)
 599     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 600     ;;
 601   ia64*-*-elf*)
 602     # No gdb support yet.
 603     noconfigdirs="$noconfigdirs readline mmalloc libgui itcl gdb"
 604     ;;
 605   ia64*-**-hpux*)
 606     # No gdb or ld support yet.
 607     noconfigdirs="$noconfigdirs ${libgcj} readline mmalloc libgui itcl gdb ld"
 608     ;;
 609   i370-*-opened*)
 610     ;;
 611   i[[3456789]]86-*-coff | i[[3456789]]86-*-elf)
 612     noconfigdirs="$noconfigdirs ${libgcj}"
 613     ;;
 614   i[[3456789]]86-*-linux*)
 615     # The GCC port for glibc1 has no MD_FALLBACK_FRAME_STATE_FOR, so let's
 616     # not build java stuff by default.
 617     case "${target}" in
 618       *-*-*libc1*)
 619         noconfigdirs="$noconfigdirs ${libgcj}";;
 620     esac
 621
 622     # This section makes it possible to build newlib natively on linux.
 623     # If we are using a cross compiler then don't configure newlib.
 624     if test x${is_cross_compiler} != xno ; then
 625       noconfigdirs="$noconfigdirs target-newlib"
 626     fi
 627     noconfigdirs="$noconfigdirs target-libgloss"
 628     # If we are not using a cross compiler, do configure newlib.
 629     # Note however, that newlib will only be configured in this situation
 630     # if the --with-newlib option has been given, because otherwise
 631     # 'target-newlib' will appear in skipdirs.
 632     ;;
 633   i[[3456789]]86-*-mingw32*)
 634     target_configdirs="$target_configdirs target-mingw"
 635     noconfigdirs="$noconfigdirs expect target-libgloss ${libgcj}"
 636
 637     # Can't build gdb for mingw32 if not native.
 638     case "${host}" in
 639       i[[3456789]]86-*-mingw32) ;; # keep gdb tcl tk expect etc.
 640       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl gnuserv"
 641          ;;
 642     esac
 643     ;;
 644   *-*-cygwin*)
 645     target_configdirs="$target_configdirs target-libtermcap target-winsup"
 646     noconfigdirs="$noconfigdirs target-gperf target-libgloss ${libgcj}"
 647     # always build newlib if winsup directory is present.
 648     if test -d "$srcdir/winsup"; then
 649       skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 650     elif test -d "$srcdir/newlib"; then
 651       echo "Warning: winsup is missing so newlib can't be built."
 652     fi
 653
 654     # Can't build gdb for Cygwin if not native.
 655     case "${host}" in
 656       *-*-cygwin*) ;; # keep gdb tcl tk expect etc.
 657       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl libgui gnuserv"
 658          ;;
 659     esac
 660     ;;
 661   i[[3456789]]86-moss-msdos | i[[3456789]]86-*-moss* | \
 662   i[[3456789]]86-*-uwin* | i[[3456789]]86-*-interix* )
 663     ;;
 664   i[[3456789]]86-*-pe)
 665     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 666     ;;
 667   i[[3456789]]86-*-sco3.2v5*)
 668     # The linker does not yet know about weak symbols in COFF,
 669     # and is not configured to handle mixed ELF and COFF.
 670     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 671     ;;
 672   i[[3456789]]86-*-sco*)
 673     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 674     ;;
 675   i[[3456789]]86-*-solaris2*)
 676     noconfigdirs="$noconfigdirs target-libgloss"
 677     ;;
 678   i[[3456789]]86-*-sysv4*)
 679     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 680     ;;
 681   i[[3456789]]86-*-beos*)
 682     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 683     ;;
 684   m32r-*-*)
 685     noconfigdirs="$noconfigdirs ${libgcj}"
 686     ;;
 687   m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
 688     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 689     ;;
 690   m68k-*-elf*)
 691     noconfigdirs="$noconfigdirs ${libgcj}"
 692     ;;
 693   m68k-*-coff*)
 694     noconfigdirs="$noconfigdirs ${libgcj}"
 695     ;;
 696   mcore-*-pe*)
 697   # The EPOC C++ environment does not support exceptions or rtti,
 698   # and so building libstdc++-v3 tends not to always work.
 699     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 700     ;;
 701   mmix-*-*)
 702     noconfigdirs="$noconfigdirs target-libffi target-boehm-gc gdb libgloss"
 703     unsupported_languages="$unsupported_languages fortran java"
 704     ;;
 705   mn10200-*-*)
 706     noconfigdirs="$noconfigdirs ${libgcj}"
 707     ;;
 708   mn10300-*-*)
 709     noconfigdirs="$noconfigdirs ${libgcj}"
 710     ;;
 711   mt-*-*)
 712     noconfigdirs="$noconfigdirs sim"
 713     ;;
 714   powerpc-*-aix*)
 715     # copied from rs6000-*-* entry
 716     noconfigdirs="$noconfigdirs gprof target-libgloss target-libssp ${libgcj}"
 717     ;;
 718   powerpc*-*-winnt* | powerpc*-*-pe* | ppc*-*-pe)
 719     target_configdirs="$target_configdirs target-winsup"
 720     noconfigdirs="$noconfigdirs gdb tcl tk make expect target-libgloss itcl gnuserv ${libgcj}"
 721     # always build newlib.
 722     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 723     ;;
 724     # This is temporary until we can link against shared libraries
 725   powerpcle-*-solaris*)
 726     noconfigdirs="$noconfigdirs gdb sim make tcl tk expect itcl gnuserv ${libgcj}"
 727     ;;
 728   powerpc-*-beos*)
 729     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 730     ;;
 731   powerpc-*-eabi)
 732     noconfigdirs="$noconfigdirs ${libgcj}"
 733     ;;
 734   powerpc-*-eabi* | powerpcle-*-eabi* | powerpc-*-rtems* )
 735     ;;
 736   rs6000-*-lynxos*)
 737     noconfigdirs="$noconfigdirs target-newlib gprof ${libgcj}"
 738     ;;
 739   rs6000-*-aix*)
 740     noconfigdirs="$noconfigdirs gprof target-libgloss target-libssp ${libgcj}"
 741     ;;
 742   rs6000-*-*)
 743     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 744     ;;
 745   m68k-apollo-*)
 746     noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss ${libgcj}"
 747     ;;
 748   mips*-*-irix5*)
 749     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 750     ;;
 751   mips*-*-irix6*)
 752     # Linking libjava exceeds command-line length limits on at least
 753     # IRIX 6.2, but not on IRIX 6.5.
 754     # Also, boehm-gc won't build on IRIX 6.5, according to Jeffrey Oldham
 755     # <oldham@codesourcery.com>
 756     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 757     ;;
 758   mips*-dec-bsd*)
 759     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 760     ;;
 761   mips*-*-bsd*)
 762     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 763     ;;
 764   mipstx39-*-*)
 765     noconfigdirs="$noconfigdirs gprof ${libgcj}"   # same as generic mips
 766     ;;
 767   mips64*-*-linux*)
 768     noconfigdirs="$noconfigdirs target-newlib ${libgcj}"
 769     ;;
 770   mips*-*-linux*)
 771     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 772     ;;
 773   mips*-*-*)
 774     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 775     ;;
 776   romp-*-*)
 777     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes target-libgloss ${libgcj}"
 778     ;;
 779   sh-*-* | sh64-*-*)
 780     case "${host}" in
 781       i[[3456789]]86-*-vsta) ;; # don't add gprof back in
 782       i[[3456789]]86-*-go32*) ;; # don't add gprof back in
 783       i[[3456789]]86-*-msdosdjgpp*) ;; # don't add gprof back in
 784       *) skipdirs=`echo " ${skipdirs} " | sed -e 's/ gprof / /'` ;;
 785     esac
 786     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 787     ;;
 788   sparc-*-elf*)
 789     noconfigdirs="$noconfigdirs ${libgcj}"
 790     ;;
 791   sparc64-*-elf*)
 792     noconfigdirs="$noconfigdirs ${libgcj}"
 793     ;;
 794   sparclite-*-*)
 795     noconfigdirs="$noconfigdirs ${libgcj}"
 796     ;;
 797   sparc-*-sunos4*)
 798     noconfigdirs="$noconfigdirs ${libgcj}"
 799     if test x${is_cross_compiler} != xno ; then
 800            noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 801     else
 802            use_gnu_ld=no
 803     fi
 804     ;;
 805   sparc-*-solaris2.[[0-6]] | sparc-*-solaris2.[[0-6]].*)
 806     noconfigdirs="$noconfigdirs ${libgcj}"
 807     ;;
 808   sparc-*-solaris* | sparc64-*-solaris* | sparcv9-*-solaris*)
 809     ;;
 810   v810-*-*)
 811     noconfigdirs="$noconfigdirs bfd binutils gas gcc gdb ld target-libstdc++-v3 opcodes target-libgloss ${libgcj}"
 812     ;;
 813   v850-*-*)
 814     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 815     ;;
 816   v850e-*-*)
 817     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 818     ;;
 819   v850ea-*-*)
 820     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 821     ;;
 822   vax-*-vms)
 823     noconfigdirs="$noconfigdirs bfd binutils gdb ld target-newlib opcodes target-libgloss ${libgcj}"
 824     ;;
 825   vax-*-*)
 826     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 827     ;;
 828   xtensa-*-*)
 829     noconfigdirs="$noconfigdirs ${libgcj}"
 830     ;;
 831   ip2k-*-*)
 832     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 833     ;;
 834   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
 835     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 836     ;;
 837   *-*-lynxos*)
 838     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 839     ;;
 840   *-*-*)
 841     noconfigdirs="$noconfigdirs ${libgcj}"
 842     ;;
 843 esac
 844
 845 # If we aren't building newlib, then don't build libgloss, since libgloss
 846 # depends upon some newlib header files.
 847 case "${noconfigdirs}" in
 848   *target-libgloss*) ;;
 849   *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
 850 esac
 851
 852 # Work in distributions that contain no compiler tools, like Autoconf.
 853 tentative_cc=""
 854 host_makefile_frag=/dev/null
 855 if test -d ${srcdir}/config ; then
 856 case "${host}" in
 857   m68k-hp-hpux*)
 858     # Avoid "too much defining" errors from HPUX compiler.
 859     tentative_cc="cc -Wp,-H256000"
 860     # If "ar" in $PATH is GNU ar, the symbol table may need rebuilding.
 861     # If it's HP/UX ar, this should be harmless.
 862     RANLIB="ar ts"
 863     ;;
 864   m68k-apollo-sysv*)
 865     tentative_cc="cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DUSG"
 866     ;;
 867   m68k-apollo-bsd*)
 868     #None of the Apollo compilers can compile gas or binutils.  The preprocessor
 869     # chokes on bfd, the compiler won't let you assign integers to enums, and
 870     # other problems.  Defining CC to gcc is a questionable way to say "don't use
 871     # the apollo compiler" (the preferred version of GCC could be called cc,
 872     # or whatever), but I'm not sure leaving CC as cc is any better...
 873     #CC=cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DNO_STDARG
 874     # Used to have BISON=yacc.
 875     tentative_cc=gcc
 876     ;;
 877   m88k-dg-dgux*)
 878     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 879     ;;
 880   m88k-harris-cxux*)
 881     # Under CX/UX, we want to tell the compiler to use ANSI mode.
 882     tentative_cc="cc -Xa"
 883     host_makefile_frag="config/mh-cxux"
 884     ;;
 885   m88k-motorola-sysv*)
 886     ;;
 887   mips*-dec-ultrix*)
 888     tentative_cc="cc -Wf,-XNg1000"
 889     host_makefile_frag="config/mh-decstation"
 890     ;;
 891   mips*-nec-sysv4*)
 892     # The C compiler on NEC MIPS SVR4 needs bigger tables.
 893     tentative_cc="cc -ZXNd=5000 -ZXNg=1000"
 894     host_makefile_frag="config/mh-necv4"
 895     ;;
 896   mips*-sgi-irix4*)
 897     # Tell compiler to use K&R C.  We can't compile under the SGI Ansi
 898     # environment.  Also bump switch table size so that cp-parse will
 899     # compile.  Bump string length limit so linker builds.
 900     tentative_cc="cc -cckr -Wf,-XNg1500 -Wf,-XNk1000 -Wf,-XNh2000 -Wf,-XNl8192"
 901     ;;
 902   mips*-*-sysv4*)
 903     host_makefile_frag="config/mh-sysv4"
 904     ;;
 905   mips*-*-sysv*)
 906     # This is for a MIPS running RISC/os 4.52C.
 907
 908     # This is needed for GDB, but needs to be in the top-level make because
 909     # if a library is compiled with the bsd headers and gets linked with the
 910     # sysv system libraries all hell can break loose (e.g. a jmp_buf might be
 911     # a different size).
 912     # ptrace(2) apparently has problems in the BSD environment.  No workaround is
 913     # known except to select the sysv environment.  Could we use /proc instead?
 914     # These "sysv environments" and "bsd environments" often end up being a pain.
 915     #
 916     # This is not part of CFLAGS because perhaps not all C compilers have this
 917     # option.
 918     tentative_cc="cc -systype sysv"
 919     ;;
 920   i370-ibm-opened*)
 921     tentative_cc="c89"
 922     ;;
 923   i[[3456789]]86-*-sysv5*)
 924     host_makefile_frag="config/mh-sysv5"
 925     ;;
 926   i[[3456789]]86-*-dgux*)
 927     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 928     host_makefile_frag="config/mh-dgux386"
 929     ;;
 930   i[[3456789]]86-ncr-sysv4.3*)
 931     # The MetaWare compiler will generate a copyright message unless you
 932     # turn it off by adding the -Hnocopyr flag.
 933     tentative_cc="cc -Hnocopyr"
 934     ;;
 935   i[[3456789]]86-ncr-sysv4*)
 936     # for an NCR 3000 (i486/SVR4) system.
 937     # The NCR 3000 ships with a MetaWare compiler installed as /bin/cc.
 938     # This compiler not only emits obnoxious copyright messages every time
 939     # you run it, but it chokes and dies on a whole bunch of GNU source
 940     # files.  Default to using the AT&T compiler installed in /usr/ccs/ATT/cc.
 941     tentative_cc="/usr/ccs/ATT/cc"
 942     host_makefile_frag="config/mh-ncr3000"
 943     ;;
 944   i[[3456789]]86-*-sco3.2v5*)
 945     ;;
 946   i[[3456789]]86-*-sco*)
 947     # The native C compiler botches some simple uses of const.  Unfortunately,
 948     # it doesn't defined anything like "__sco__" for us to test for in ansidecl.h.
 949     tentative_cc="cc -Dconst="
 950     host_makefile_frag="config/mh-sco"
 951     ;;
 952   i[[3456789]]86-*-udk*)
 953     host_makefile_frag="config/mh-sysv5"
 954     ;;
 955   i[[3456789]]86-*-solaris2*)
 956     host_makefile_frag="config/mh-sysv4"
 957     ;;
 958   i[[3456789]]86-*-msdosdjgpp*)
 959     host_makefile_frag="config/mh-djgpp"
 960     ;;
 961   *-cygwin*)
 962     host_makefile_frag="config/mh-cygwin"
 963     ;;
 964   *-mingw32*)
 965     ;;
 966   *-interix*)
 967     host_makefile_frag="config/mh-interix"
 968     ;;
 969   vax-*-ultrix2*)
 970     # The old BSD pcc isn't up to compiling parts of gdb so use gcc
 971     tentative_cc=gcc
 972     ;;
 973   *-*-solaris2*)
 974     host_makefile_frag="config/mh-solaris"
 975     ;;
 976   m68k-sun-sunos*)
 977     # Sun's C compiler needs the -J flag to be able to compile cp-parse.c
 978     # without overflowing the jump tables (-J says to use a 32 bit table)
 979     tentative_cc="cc -J"
 980     ;;
 981   *-hp-hpux*)
 982     tentative_cc="cc -Wp,-H256000"
 983     ;;
 984   *-*-hiux*)
 985     tentative_cc="cc -Wp,-H256000"
 986     ;;
 987   rs6000-*-lynxos*)
 988     # /bin/cc is less than useful for our purposes.  Always use GCC
 989     tentative_cc="/usr/cygnus/progressive/bin/gcc"
 990     host_makefile_frag="config/mh-lynxrs6k"
 991     ;;
 992   powerpc-*-darwin*)
 993     host_makefile_frag="config/mh-ppc-darwin"
 994     ;;
 995   powerpc-*-aix*)
 996     host_makefile_frag="config/mh-ppc-aix"
 997     ;;
 998   rs6000-*-aix*)
 999     host_makefile_frag="config/mh-ppc-aix"
1000     ;;
1001   *-*-lynxos*)
1002     # /bin/cc is less than useful for our purposes.  Always use GCC
1003     tentative_cc="/bin/gcc"
1004     ;;
1005   *-*-sysv4*)
1006     host_makefile_frag="config/mh-sysv4"
1007     ;;
1008   # This is placed last to prevent interfering with the cases above.
1009   i[[3456789]]86-*-*)
1010     # Build the stage2 and stage3 compilers with -fomit-frame-pointer.
1011     host_makefile_frag="config/mh-x86omitfp"
1012     ;;
1013 esac
1014 fi
1015
1016 # If we aren't going to be using gcc, see if we can extract a definition
1017 # of CC from the fragment.
1018 # Actually, use the 'pre-extracted' version above.
1019 if test -z "${CC}" && test "${build}" = "${host}" ; then
1020   IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
1021   found=
1022   for dir in $PATH; do
1023     test -z "$dir" && dir=.
1024     if test -f $dir/gcc; then
1025       found=yes
1026       break
1027     fi
1028   done
1029   IFS="$save_ifs"
1030   if test -z "${found}" && test -n "${tentative_cc}" ; then
1031     CC=$tentative_cc
1032   fi
1033 fi
1034
1035 if test "${build}" != "${host}" ; then
1036   # If we are doing a Canadian Cross, in which the host and build systems
1037   # are not the same, we set reasonable default values for the tools.
1038
1039   CC=${CC-${host_alias}-gcc}
1040   CFLAGS=${CFLAGS-"-g -O2"}
1041   CXX=${CXX-${host_alias}-c++}
1042   CXXFLAGS=${CXXFLAGS-"-g -O2"}
1043   CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1044   BUILD_PREFIX=${build_alias}-
1045   BUILD_PREFIX_1=${build_alias}-
1046
1047 else
1048   # Set reasonable default values for some tools even if not Canadian.
1049   # Of course, these are different reasonable default values, originally
1050   # specified directly in the Makefile.
1051   # We don't export, so that autoconf can do its job.
1052   # Note that all these settings are above the fragment inclusion point
1053   # in Makefile.in, so can still be overridden by fragments.
1054   # This is all going to change when we autoconfiscate...
1055
1056   CC_FOR_BUILD="\$(CC)"
1057   BUILD_PREFIX=
1058   BUILD_PREFIX_1=loser-
1059
1060   AC_PROG_CC
1061
1062   # We must set the default linker to the linker used by gcc for the correct
1063   # operation of libtool.  If LD is not defined and we are using gcc, try to
1064   # set the LD default to the ld used by gcc.
1065   if test -z "$LD"; then
1066     if test "$GCC" = yes; then
1067       case $build in
1068       *-*-mingw*)
1069         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1070       *)
1071         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1072       esac
1073       case $gcc_prog_ld in
1074       # Accept absolute paths.
1075       [[\\/]* | [A-Za-z]:[\\/]*)]
1076         LD="$gcc_prog_ld" ;;
1077       esac
1078     fi
1079   fi
1080
1081   CXX=${CXX-"c++"}
1082   CFLAGS=${CFLAGS-"-g"}
1083   CXXFLAGS=${CXXFLAGS-"-g -O2"}
1084 fi
1085
1086 ACX_PROG_GNAT
1087 ACX_PROG_CMP_IGNORE_INITIAL
1088
1089 # Check for GMP and MPFR
1090 gmplibs=
1091 gmpinc=
1092 have_gmp=yes
1093 # Specify a location for mpfr
1094 # check for this first so it ends up on the link line before gmp.
1095 AC_ARG_WITH(mpfr-dir, [  --with-mpfr-dir=PATH    Specify source directory for MPFR library])
1096
1097 if test "x$with_mpfr_dir" != x; then
1098   gmpinc="-I$with_mpfr_dir"
1099   gmplibs="$with_mpfr_dir/libmpfr.a"
1100 else
1101   gmplibs="-lmpfr"
1102 fi
1103
1104 AC_ARG_WITH(mpfr, [  --with-mpfr=PATH        Specify directory for installed MPFR library])
1105
1106 if test "x$with_mpfr" != x; then
1107   gmplibs="-L$with_mpfr/lib $gmplibs"
1108   gmpinc="-I$with_mpfr/include"
1109 fi
1110
1111 # Specify a location for gmp
1112 AC_ARG_WITH(gmp-dir, [  --with-gmp-dir=PATH     Specify source directory for GMP library])
1113
1114 if test "x$with_gmp_dir" != x; then
1115   gmpinc="$gmpinc -I$with_gmp_dir"
1116   if test -f "$with_gmp_dir/.libs/libgmp.a"; then
1117     gmplibs="$gmplibs $with_gmp_dir/.libs/libgmp.a"
1118   elif test -f "$with_gmp_dir/_libs/libgmp.a"; then
1119     gmplibs="$gmplibs $with_gmp_dir/_libs/libgmp.a"
1120   fi
1121   # One of the later tests will catch the error if neither library is present.
1122 else
1123   gmplibs="$gmplibs -lgmp"
1124 fi
1125
1126 AC_ARG_WITH(gmp, [  --with-gmp=PATH         Specify directory for installed GMP library])
1127
1128 if test "x$with_gmp" != x; then
1129   gmplibs="-L$with_gmp/lib $gmplibs"
1130   gmpinc="-I$with_gmp/include $gmpinc"
1131 fi
1132
1133 saved_CFLAGS="$CFLAGS"
1134 CFLAGS="$CFLAGS $gmpinc"
1135 # Check GMP actually works
1136 AC_MSG_CHECKING([for correct version of gmp.h])
1137 AC_TRY_COMPILE([#include "gmp.h"],[
1138 #if __GNU_MP_VERSION < 3
1139 choke me
1140 #endif
1141 ], [AC_MSG_RESULT([yes])],
1142   [AC_MSG_RESULT([no]); have_gmp=no])
1143
1144 if test x"$have_gmp" = xyes; then
1145   AC_MSG_CHECKING([for MPFR])
1146
1147   saved_LIBS="$LIBS"
1148   LIBS="$LIBS $gmplibs"
1149   AC_TRY_LINK([#include <gmp.h>
1150 #include <mpfr.h>], [mpfr_t n; mpfr_init(n);],
1151     [AC_MSG_RESULT([yes])],  [AC_MSG_RESULT([no]); have_gmp=no])
1152   LIBS="$saved_LIBS"
1153   CFLAGS="$saved_CFLAGS"
1154 fi
1155
1156 # Flags needed for both GMP and/or MPFR
1157 AC_SUBST(gmplibs)
1158 AC_SUBST(gmpinc)
1159
1160 # By default, C is the only stage 1 language.
1161 stage1_languages=c
1162 AC_SUBST(stage1_languages)
1163
1164 # Figure out what language subdirectories are present.
1165 # Look if the user specified --enable-languages="..."; if not, use
1166 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1167 # go away some day.
1168 # NB:  embedded tabs in this IF block -- do not untabify
1169 if test -d ${srcdir}/gcc; then
1170   if test x"${enable_languages+set}" != xset; then
1171     if test x"${LANGUAGES+set}" = xset; then
1172       enable_languages="${LANGUAGES}"
1173         echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1174     else
1175       enable_languages=all
1176     fi
1177   else
1178     if test x"${enable_languages}" = x ||
1179        test x"${enable_languages}" = xyes;
1180        then
1181       echo configure.in: --enable-languages needs at least one language argument 1>&2
1182       exit 1
1183     fi
1184   fi
1185   enable_languages=`echo "${enable_languages}" | sed -e 's/[[   ,]][[   ,]]*/,/g' -e 's/,$//'`
1186
1187   # 'f95' is the old name for the 'fortran' language. We issue a warning
1188   # and make the substitution.
1189   case ,${enable_languages}, in
1190     *,f95,*)
1191       echo configure.in: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
1192       enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1193       ;;
1194   esac
1195
1196   # First scan to see if an enabled language requires some other language.
1197   # We assume that a given config-lang.in will list all the language
1198   # front ends it requires, even if some are required indirectly.
1199   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1200     case ${lang_frag} in
1201       ..) ;;
1202       # The odd quoting in the next line works around
1203       # an apparent bug in bash 1.12 on linux.
1204       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1205       *)
1206         # From the config-lang.in, get $language, $lang_requires
1207         language=
1208         lang_requires=
1209         . ${lang_frag}
1210         for other in ${lang_requires} ; do
1211           case ,${enable_languages}, in
1212             *,$other,*) ;;
1213             *,all,*) ;;
1214             *,$language,*)
1215               echo " \`$other' language required by \`$language'; enabling" 1>&2
1216               enable_languages="${enable_languages},${other}"
1217               ;;
1218           esac
1219         done
1220         ;;
1221     esac
1222   done
1223
1224   new_enable_languages=c
1225   missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
1226   potential_languages=c
1227
1228   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1229     case ${lang_frag} in
1230       ..) ;;
1231       # The odd quoting in the next line works around
1232       # an apparent bug in bash 1.12 on linux.
1233       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1234       *)
1235         # From the config-lang.in, get $language, $target_libs,
1236         # $lang_dirs, $boot_language, and $build_by_default
1237         language=
1238         target_libs=
1239         lang_dirs=
1240         boot_language=
1241         build_by_default=
1242         need_gmp=
1243         . ${lang_frag}
1244         potential_languages="${potential_languages},${language}"
1245         # This is quite sensitive to the ordering of the case statement arms.
1246         case ,${enable_languages},:${language}:${have_gnat}:${build_by_default} in
1247           *::*:*)
1248             echo "${lang_frag} doesn't set \$language." 1>&2
1249             exit 1
1250             ;;
1251           *:ada:no:*)
1252             # Ada was requested with no preexisting GNAT.  Disable unconditionally.
1253             add_this_lang=no
1254             ;;
1255           *,${language},*:*:*:*)
1256             # Language was explicitly selected; include it.
1257             add_this_lang=yes
1258             ;;
1259           *,all,*:*:*:no)
1260             # 'all' was selected, but this is not a default language
1261             # so do not include it.
1262             add_this_lang=no
1263             ;;
1264           *,all,*:*:*:*)
1265             # 'all' was selected and this is a default language; include it.
1266             add_this_lang=yes
1267             ;;
1268           *)
1269             add_this_lang=no
1270             ;;
1271         esac
1272
1273         # Disable languages that need GMP if it isn't available.
1274         case ,${enable_languages},:${have_gmp}:${need_gmp} in
1275           *,${language},*:no:yes)
1276             # Specifically requested language; tell them.
1277             AC_MSG_ERROR([GMP with MPFR support is required to build $language])
1278             ;;
1279           *:no:yes)
1280             # Silently disable.
1281             add_this_lang=no
1282             ;;
1283         esac
1284
1285         # Disable a language that is unsupported by the target.
1286         case " $unsupported_languages " in
1287           *" $language "*)
1288             add_this_lang=no
1289             ;;
1290         esac
1291
1292         case $add_this_lang in
1293           no)
1294             # Remove language-dependent dirs.
1295             eval noconfigdirs='"$noconfigdirs "'\"$target_libs $lang_dirs\"
1296             ;;
1297           *)
1298             new_enable_languages="$new_enable_languages,$language"
1299             missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
1300             case ${boot_language} in
1301               yes)
1302                 # Add to (comma-separated) list of stage 1 languages.
1303                 stage1_languages="${stage1_languages},${language}"
1304                 ;;
1305             esac
1306             ;;
1307         esac
1308         ;;
1309     esac
1310   done
1311
1312   missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
1313   if test "x$missing_languages" != x; then
1314     AC_MSG_ERROR([
1315 The following requested languages could not be built: ${missing_languages}
1316 Recognised languages are: ${potential_languages}])
1317   fi
1318
1319   if test "x$new_enable_languages" != "x$enable_languages"; then
1320     echo The following languages will be built: ${new_enable_languages}
1321   fi
1322   enable_languages="$new_enable_languages"
1323   ac_configure_args=`echo " $ac_configure_args" | sed -e 's/ --enable-languages=[[^ ]]*//' -e 's/$/ --enable-languages='"$enable_languages"/ `
1324 fi
1325
1326 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
1327 # $build_configdirs and $target_configdirs.
1328 # If we have the source for $noconfigdirs entries, add them to $notsupp.
1329
1330 notsupp=""
1331 for dir in . $skipdirs $noconfigdirs ; do
1332   dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
1333   if test $dir != .  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1334     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
1335     if test -r $srcdir/$dirname/configure ; then
1336       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1337         true
1338       else
1339         notsupp="$notsupp $dir"
1340       fi
1341     fi
1342   fi
1343   if test $dir != .  && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1344     build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
1345     if test -r $srcdir/$dirname/configure ; then
1346       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1347         true
1348       else
1349         notsupp="$notsupp $dir"
1350       fi
1351     fi
1352   fi
1353   if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1354     target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
1355     if test -r $srcdir/$dirname/configure ; then
1356       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1357         true
1358       else
1359         notsupp="$notsupp $dir"
1360       fi
1361     fi
1362   fi
1363 done
1364
1365 # Sometimes the tools are distributed with libiberty but with no other
1366 # libraries.  In that case, we don't want to build target-libiberty.
1367 if test -n "${target_configdirs}" ; then
1368   others=
1369   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
1370     if test "$i" != "libiberty" ; then
1371       if test -r $srcdir/$i/configure ; then
1372         others=yes;
1373         break;
1374       fi
1375     fi
1376   done
1377   if test -z "${others}" ; then
1378     target_configdirs=
1379   fi
1380 fi
1381
1382 # Quietly strip out all directories which aren't configurable in this tree.
1383 # This relies on all configurable subdirectories being autoconfiscated, which
1384 # is now the case.
1385 build_configdirs_all="$build_configdirs"
1386 build_configdirs=
1387 for i in ${build_configdirs_all} ; do
1388   j=`echo $i | sed -e s/build-//g`
1389   if test -f ${srcdir}/$j/configure ; then
1390     build_configdirs="${build_configdirs} $i"
1391   fi
1392 done
1393
1394 configdirs_all="$configdirs"
1395 configdirs=
1396 for i in ${configdirs_all} ; do
1397   if test -f ${srcdir}/$i/configure ; then
1398     configdirs="${configdirs} $i"
1399   fi
1400 done
1401
1402 target_configdirs_all="$target_configdirs"
1403 target_configdirs=
1404 for i in ${target_configdirs_all} ; do
1405   j=`echo $i | sed -e s/target-//g`
1406   if test -f ${srcdir}/$j/configure ; then
1407     target_configdirs="${target_configdirs} $i"
1408   fi
1409 done
1410
1411 # Produce a warning message for the subdirs we can't configure.
1412 # This isn't especially interesting in the Cygnus tree, but in the individual
1413 # FSF releases, it's important to let people know when their machine isn't
1414 # supported by the one or two programs in a package.
1415
1416 if test -n "${notsupp}" && test -z "${norecursion}" ; then
1417   # If $appdirs is non-empty, at least one of those directories must still
1418   # be configured, or we error out.  (E.g., if the gas release supports a
1419   # specified target in some subdirs but not the gas subdir, we shouldn't
1420   # pretend that all is well.)
1421   if test -n "$appdirs" ; then
1422     for dir in $appdirs ; do
1423       if test -r $dir/Makefile.in ; then
1424         if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1425           appdirs=""
1426           break
1427         fi
1428         if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
1429           appdirs=""
1430           break
1431         fi
1432       fi
1433     done
1434     if test -n "$appdirs" ; then
1435       echo "*** This configuration is not supported by this package." 1>&2
1436       exit 1
1437     fi
1438   fi
1439   # Okay, some application will build, or we don't care to check.  Still
1440   # notify of subdirs not getting built.
1441   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
1442   echo "    ${notsupp}" 1>&2
1443   echo "    (Any other directories should still work fine.)" 1>&2
1444 fi
1445
1446 case "$host" in
1447   *msdosdjgpp*)
1448     enable_gdbtk=no ;;
1449 esac
1450
1451 copy_dirs=
1452
1453 AC_ARG_WITH([build-sysroot],
1454   [  --with-build-sysroot=sysroot
1455                           use sysroot as the system root during the build],
1456   [if test x"$withval" != x ; then
1457      SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
1458    fi],
1459   [SYSROOT_CFLAGS_FOR_TARGET=])
1460 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
1461
1462 # Handle --with-headers=XXX.  If the value is not "yes", the contents of
1463 # the named directory are copied to $(tooldir)/sys-include.
1464 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
1465   if test x${is_cross_compiler} = xno ; then
1466     echo 1>&2 '***' --with-headers is only supported when cross compiling
1467     exit 1
1468   fi
1469   if test x"${with_headers}" != xyes ; then
1470     case "${exec_prefixoption}" in
1471     "") x=${prefix} ;;
1472     *) x=${exec_prefix} ;;
1473     esac
1474     copy_dirs="${copy_dirs} ${with_headers} $x/${target_alias}/sys-include"
1475   fi
1476 fi
1477
1478 # Handle --with-libs=XXX.  If the value is not "yes", the contents of
1479 # the name directories are copied to $(tooldir)/lib.  Multiple directories
1480 # are permitted.
1481 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
1482   if test x${is_cross_compiler} = xno ; then
1483     echo 1>&2 '***' --with-libs is only supported when cross compiling
1484     exit 1
1485   fi
1486   if test x"${with_libs}" != xyes ; then
1487     # Copy the libraries in reverse order, so that files in the first named
1488     # library override files in subsequent libraries.
1489     case "${exec_prefixoption}" in
1490     "") x=${prefix} ;;
1491     *) x=${exec_prefix} ;;
1492     esac
1493     for l in ${with_libs}; do
1494       copy_dirs="$l $x/${target_alias}/lib ${copy_dirs}"
1495     done
1496   fi
1497 fi
1498
1499 # Handle ${copy_dirs}
1500 set fnord ${copy_dirs}
1501 shift
1502 while test $# != 0 ; do
1503   if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
1504     :
1505   else
1506     echo Copying $1 to $2
1507
1508     # Use the install script to create the directory and all required
1509     # parent directories.
1510     if test -d $2 ; then
1511       :
1512     else
1513       echo >config.temp
1514       ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
1515     fi
1516
1517     # Copy the directory, assuming we have tar.
1518     # FIXME: Should we use B in the second tar?  Not all systems support it.
1519     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
1520
1521     # It is the responsibility of the user to correctly adjust all
1522     # symlinks.  If somebody can figure out how to handle them correctly
1523     # here, feel free to add the code.
1524
1525     echo $1 > $2/COPIED
1526   fi
1527   shift; shift
1528 done
1529
1530 extra_arflags_for_target=
1531 extra_nmflags_for_target=
1532 extra_ranlibflags_for_target=
1533 target_makefile_frag=/dev/null
1534 case "${target}" in
1535   *-*-netware*)
1536     target_makefile_frag="config/mt-netware"
1537     ;;
1538   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
1539     target_makefile_frag="config/mt-gnu"
1540     ;;
1541   *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
1542     # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
1543     # commands to handle both 32-bit and 64-bit objects.  These flags are
1544     # harmless if we're using GNU nm or ar.
1545     extra_arflags_for_target=" -X32_64"
1546     extra_nmflags_for_target=" -B -X32_64"
1547     ;;
1548   *-*-darwin*)
1549     # ranlib from Darwin requires the -c flag to look at common symbols.
1550     extra_ranlibflags_for_target=" -c"
1551     ;;
1552   mips*-*-pe | sh*-*-pe | *arm-wince-pe)
1553     target_makefile_frag="config/mt-wince"
1554     ;;
1555 esac
1556
1557 alphaieee_frag=/dev/null
1558 case $target in
1559   alpha*-*-*)
1560     # This just makes sure to use the -mieee option to build target libs.
1561     # This should probably be set individually by each library.
1562     alphaieee_frag="config/mt-alphaieee"
1563     ;;
1564 esac
1565
1566 # If --enable-target-optspace always use -Os instead of -O2 to build
1567 # the target libraries, similarly if it is not specified, use -Os
1568 # on selected platforms.
1569 ospace_frag=/dev/null
1570 case "${enable_target_optspace}:${target}" in
1571   yes:*)
1572     ospace_frag="config/mt-ospace"
1573     ;;
1574   :d30v-*)
1575     ospace_frag="config/mt-d30v"
1576     ;;
1577   :m32r-* | :d10v-* | :fr30-*)
1578     ospace_frag="config/mt-ospace"
1579     ;;
1580   no:* | :*)
1581     ;;
1582   *)
1583     echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
1584     ;;
1585 esac
1586
1587 # Set with_gnu_as and with_gnu_ld as appropriate.
1588 #
1589 # This is done by determining whether or not the appropriate directory
1590 # is available, and by checking whether or not specific configurations
1591 # have requested that this magic not happen.
1592 #
1593 # The command line options always override the explicit settings in
1594 # configure.in, and the settings in configure.in override this magic.
1595 #
1596 # If the default for a toolchain is to use GNU as and ld, and you don't
1597 # want to do that, then you should use the --without-gnu-as and
1598 # --without-gnu-ld options for the configure script.
1599
1600 if test x${use_gnu_as} = x &&
1601    echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
1602   with_gnu_as=yes
1603   extra_host_args="$extra_host_args --with-gnu-as"
1604 fi
1605
1606 if test x${use_gnu_ld} = x &&
1607    echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 ; then
1608   with_gnu_ld=yes
1609   extra_host_args="$extra_host_args --with-gnu-ld"
1610 fi
1611
1612 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
1613 # can detect this case.
1614
1615 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
1616   with_newlib=yes
1617   extra_host_args="$extra_host_args --with-newlib"
1618 fi
1619
1620 # Default to using --with-stabs for certain targets.
1621 if test x${with_stabs} = x ; then
1622   case "${target}" in
1623   mips*-*-irix[[56]]*)
1624     ;;
1625   mips*-*-* | alpha*-*-osf*)
1626     with_stabs=yes;
1627     extra_host_args="${extra_host_args} --with-stabs"
1628     ;;
1629   esac
1630 fi
1631
1632 # hpux11 in 64bit mode has libraries in a weird place.  Arrange to find
1633 # them automatically.
1634 case "${host}" in
1635   hppa*64*-*-hpux11*)
1636     extra_host_args="$extra_host_args -x-libraries=/usr/lib/pa20_64 -x-includes=/usr/X11R6/include"
1637     ;;
1638 esac
1639
1640 # Some systems (e.g., one of the i386-aix systems the gas testers are
1641 # using) don't handle "\$" correctly, so don't use it here.
1642 tooldir='${exec_prefix}'/${target_alias}
1643 build_tooldir=${tooldir}
1644
1645 # Create a .gdbinit file which runs the one in srcdir
1646 # and tells GDB to look there for source files.
1647
1648 if test -r ${srcdir}/.gdbinit ; then
1649   case ${srcdir} in
1650     .) ;;
1651     *) cat > ./.gdbinit <<EOF
1652 # ${NO_EDIT}
1653 dir ${srcdir}
1654 dir .
1655 source ${srcdir}/.gdbinit
1656 EOF
1657     ;;
1658   esac
1659 fi
1660
1661 # Make sure that the compiler is able to generate an executable.  If it
1662 # can't, we are probably in trouble.  We don't care whether we can run the
1663 # executable--we might be using a cross compiler--we only care whether it
1664 # can be created.  At this point the main configure script has set CC.
1665 we_are_ok=no
1666 echo "int main () { return 0; }" > conftest.c
1667 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
1668 if test $? = 0 ; then
1669   if test -s conftest || test -s conftest.exe ; then
1670     we_are_ok=yes
1671   fi
1672 fi
1673 case $we_are_ok in
1674   no)
1675     echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
1676     echo 1>&2 "*** You must set the environment variable CC to a working compiler."
1677     rm -f conftest*
1678     exit 1
1679     ;;
1680 esac
1681 rm -f conftest*
1682
1683 # The Solaris /usr/ucb/cc compiler does not appear to work.
1684 case "${host}" in
1685   sparc-sun-solaris2*)
1686       CCBASE="`echo ${CC-cc} | sed 's/ .*$//'`"
1687       if test "`type $CCBASE | sed 's/^[[^/]]*//'`" = "/usr/ucb/cc" ; then
1688           could_use=
1689           test -d /opt/SUNWspro/bin && could_use="/opt/SUNWspro/bin"
1690           if test -d /opt/cygnus/bin ; then
1691               if test "$could_use" = "" ; then
1692                   could_use="/opt/cygnus/bin"
1693               else
1694                   could_use="$could_use or /opt/cygnus/bin"
1695               fi
1696           fi
1697         if test "$could_use" = "" ; then
1698             echo "Warning: compilation may fail because you're using"
1699             echo "/usr/ucb/cc.  You should change your PATH or CC "
1700             echo "variable and rerun configure."
1701         else
1702             echo "Warning: compilation may fail because you're using"
1703             echo "/usr/ucb/cc, when you should use the C compiler from"
1704             echo "$could_use.  You should change your"
1705             echo "PATH or CC variable and rerun configure."
1706         fi
1707       fi
1708   ;;
1709 esac
1710
1711 case "${host}" in
1712   *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
1713   *-*-darwin* | *-*-rhapsody* ) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
1714   *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
1715 esac
1716
1717 # Record target_configdirs and the configure arguments for target and
1718 # build configuration in Makefile.
1719 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
1720 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
1721
1722 # Determine whether gdb needs tk/tcl or not.
1723 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
1724 # and in that case we want gdb to be built without tk.  Ugh!
1725 # In fact I believe gdb is the *only* package directly dependent on tk,
1726 # so we should be able to put the 'maybe's in unconditionally and
1727 # leave out the maybe dependencies when enable_gdbtk is false.  I'm not
1728 # 100% sure that that's safe though.
1729
1730 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
1731 case "$enable_gdbtk" in
1732   no)
1733     GDB_TK="" ;;
1734   yes)
1735     GDB_TK="${gdb_tk}" ;;
1736   *)
1737     # Only add the dependency on gdbtk when GDBtk is part of the gdb
1738     # distro.  Eventually someone will fix this and move Insight, nee
1739     # gdbtk to a separate directory.
1740     if test -d ${srcdir}/gdb/gdbtk ; then
1741       GDB_TK="${gdb_tk}"
1742     else
1743       GDB_TK=""
1744     fi
1745     ;;
1746 esac
1747 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
1748 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
1749
1750 # Strip out unwanted targets.
1751
1752 # While at that, we remove Makefiles if we were started for recursive
1753 # configuration, so that the top-level Makefile reconfigures them,
1754 # like we used to do when configure itself was recursive.
1755
1756 # Loop over modules.  $extrasub must be used with care, limiting as
1757 # much as possible the usage of range addresses.  That's because autoconf
1758 # splits the sed script to overcome limits in the number of commands,
1759 # and relying on carefully-timed sed passes may turn out to be very hard
1760 # to maintain later.  In this particular case, you just have to be careful
1761 # not to nest @if/@endif pairs, because configure will not warn you at all.
1762
1763 AC_ARG_ENABLE([bootstrap],
1764 [  --enable-bootstrap           Enable bootstrapping [yes if native build]],,
1765 enable_bootstrap=default)
1766
1767 # Issue errors and warnings for invalid/strange bootstrap combinations.
1768 case "$configdirs" in
1769   *gcc*) have_compiler=yes ;;
1770   *) have_compiler=no ;;
1771 esac
1772
1773 case "$have_compiler:$host:$target:$enable_bootstrap" in
1774   *:*:*:no) ;;
1775
1776   # Default behavior.  Enable bootstrap if we have a compiler
1777   # and we are in a native configuration.
1778   yes:$build:$build:default)
1779     enable_bootstrap=yes ;;
1780
1781   *:*:*:default)
1782     enable_bootstrap=no ;;
1783
1784   # We have a compiler and we are in a native configuration, bootstrap is ok
1785   yes:$build:$build:yes)
1786     ;;
1787
1788   # Other configurations, but we have a compiler.  Assume the user knows
1789   # what he's doing.
1790   yes:*:*:yes)
1791     AC_MSG_WARN([trying to bootstrap a cross compiler])
1792     ;;
1793
1794   # No compiler: if they passed --enable-bootstrap explicitly, fail
1795   no:*:*:yes)
1796     AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1797
1798   # Fail if wrong command line
1799   *)
1800     AC_MSG_ERROR([invalid option for --enable-bootstrap])
1801     ;;
1802 esac
1803
1804 # Adjust the toplevel makefile according to whether bootstrap was selected.
1805 case "$enable_bootstrap" in
1806   yes)
1807     bootstrap_suffix=bootstrap ;;
1808   no)
1809     bootstrap_suffix=no-bootstrap ;;
1810 esac
1811
1812 for module in ${build_configdirs} ; do
1813   if test -z "${no_recursion}" \
1814      && test -f ${build_subdir}/${module}/Makefile; then
1815     echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
1816     rm -f ${build_subdir}/${module}/Makefile
1817   fi
1818   extrasub="$extrasub
1819 /^@if build-$module\$/d
1820 /^@endif build-$module\$/d
1821 /^@if build-$module-$bootstrap_suffix\$/d
1822 /^@endif build-$module-$bootstrap_suffix\$/d"
1823 done
1824 for module in ${configdirs} ; do
1825   if test -z "${no_recursion}"; then
1826     for file in stage*-${module}/Makefile ${module}/Makefile; do
1827       if test -f ${file}; then
1828         echo 1>&2 "*** removing ${file} to force reconfigure"
1829         rm -f ${file}
1830       fi
1831     done
1832   fi
1833   extrasub="$extrasub
1834 /^@if $module\$/d
1835 /^@endif $module\$/d
1836 /^@if $module-$bootstrap_suffix\$/d
1837 /^@endif $module-$bootstrap_suffix\$/d"
1838 done
1839 for module in ${target_configdirs} ; do
1840   if test -z "${no_recursion}" \
1841      && test -f ${target_subdir}/${module}/Makefile; then
1842     echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
1843     rm -f ${target_subdir}/${module}/Makefile
1844   fi
1845   extrasub="$extrasub
1846 /^@if target-$module\$/d
1847 /^@endif target-$module\$/d
1848 /^@if target-$module-$bootstrap_suffix\$/d
1849 /^@endif target-$module-$bootstrap_suffix\$/d"
1850 done
1851
1852 extrasub="$extrasub
1853 /^@if /,/^@endif /d"
1854
1855 # Create the serialization dependencies.  This uses a temporary file.
1856
1857 AC_ARG_ENABLE([serial-configure],
1858 [  --enable-serial-[{host,target,build}-]configure
1859                           Force sequential configuration of
1860                           sub-packages for the host, target or build
1861                           machine, or all sub-packages])
1862
1863 case ${enable_serial_configure} in
1864   yes)
1865     enable_serial_build_configure=yes
1866     enable_serial_host_configure=yes
1867     enable_serial_target_configure=yes
1868     ;;
1869 esac
1870
1871 # These force 'configure's to be done one at a time, to avoid problems
1872 # with contention over a shared config.cache.
1873 rm -f serdep.tmp
1874 echo '# serdep.tmp' > serdep.tmp
1875 olditem=
1876 test "x${enable_serial_build_configure}" = xyes &&
1877 for item in ${build_configdirs} ; do
1878   case ${olditem} in
1879     "") ;;
1880     *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
1881   esac
1882   olditem=${item}
1883 done
1884 olditem=
1885 test "x${enable_serial_host_configure}" = xyes &&
1886 for item in ${configdirs} ; do
1887   case ${olditem} in
1888     "") ;;
1889     *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
1890   esac
1891   olditem=${item}
1892 done
1893 olditem=
1894 test "x${enable_serial_target_configure}" = xyes &&
1895 for item in ${target_configdirs} ; do
1896   case ${olditem} in
1897     "") ;;
1898     *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
1899   esac
1900   olditem=${item}
1901 done
1902 serialization_dependencies=serdep.tmp
1903 AC_SUBST_FILE(serialization_dependencies)
1904
1905 # Base args.  Strip norecursion, cache-file, srcdir, host, build,
1906 # target and nonopt.  These are the ones we might not want to pass
1907 # down to subconfigures.  Also strip program-prefix, program-suffix,
1908 # and program-transform-name, so that we can pass down a consistent
1909 # program-transform-name.  If autoconf has put single quotes around
1910 # any of these arguments (because they contain shell metacharacters)
1911 # then this will fail; in practice this only happens for
1912 # --program-transform-name, so be sure to override --program-transform-name
1913 # at the end of the argument list.
1914 # These will be expanded by make, so quote '$'.
1915 cat <<\EOF_SED > conftestsed
1916 s/ --no[[^ ]]*/ /g
1917 s/ --c[[a-z-]]*[[= ]][[^ ]]*//g
1918 s/ --sr[[a-z-]]*[[= ]][[^ ]]*//g
1919 s/ --ho[[a-z-]]*[[= ]][[^ ]]*//g
1920 s/ --bu[[a-z-]]*[[= ]][[^ ]]*//g
1921 s/ --t[[a-z-]]*[[= ]][[^ ]]*//g
1922 s/ --program-[[pst]][[a-z-]]*[[= ]][[^ ]]*//g
1923 s/ -cache-file[[= ]][[^ ]]*//g
1924 s/ -srcdir[[= ]][[^ ]]*//g
1925 s/ -host[[= ]][[^ ]]*//g
1926 s/ -build[[= ]][[^ ]]*//g
1927 s/ -target[[= ]][[^ ]]*//g
1928 s/ -program-prefix[[= ]][[^ ]]*//g
1929 s/ -program-suffix[[= ]][[^ ]]*//g
1930 s/ -program-transform-name[[= ]][[^ ]]*//g
1931 s/ [[^' -][^ ]*] / /
1932 s/^ *//;s/ *$//
1933 s,\$,$$,g
1934 EOF_SED
1935 sed -f conftestsed <<EOF_SED > conftestsed.out
1936  ${ac_configure_args}
1937 EOF_SED
1938 baseargs=`cat conftestsed.out`
1939 rm -f conftestsed conftestsed.out
1940
1941 # Add in --program-transform-name, after --program-prefix and
1942 # --program-suffix have been applied to it.  Autoconf has already
1943 # doubled dollar signs and backslashes in program_transform_name; we want
1944 # the backslashes un-doubled, and then the entire thing wrapped in single
1945 # quotes, because this will be expanded first by make and then by the shell.
1946 # Also, because we want to override the logic in subdir configure scripts to
1947 # choose program_transform_name, replace any s,x,x, with s,y,y,.
1948 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
1949 ${program_transform_name}
1950 EOF_SED
1951 gcc_transform_name=`cat conftestsed.out`
1952 rm -f conftestsed.out
1953 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
1954
1955 # For the build-side libraries, we just need to pretend we're native,
1956 # and not use the same cache file.  Multilibs are neither needed nor
1957 # desired.
1958 build_configargs="--cache-file=../config.cache --build=${build_alias} --host=${build_alias} --target=${target_alias} ${baseargs}"
1959
1960 # For host modules, accept cache file option, or specification as blank.
1961 case "${cache_file}" in
1962 "") # empty
1963   cache_file_option="" ;;
1964 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
1965   cache_file_option="--cache-file=${cache_file}" ;;
1966 *) # relative path
1967   cache_file_option="--cache-file=../${cache_file}" ;;
1968 esac
1969
1970 # Host dirs don't like to share a cache file either, horribly enough.
1971 # This seems to be due to autoconf 2.5x stupidity.
1972 host_configargs="--cache-file=./config.cache --build=${build_alias} --host=${host_alias} --target=${target_alias} ${extra_host_args} ${baseargs}"
1973
1974 target_configargs=${baseargs}
1975
1976 # Passing a --with-cross-host argument lets the target libraries know
1977 # whether they are being built with a cross-compiler or being built
1978 # native.  However, it would be better to use other mechanisms to make the
1979 # sorts of decisions they want to make on this basis.  Please consider
1980 # this option to be deprecated.  FIXME.
1981 if test x${is_cross_compiler} = xyes ; then
1982   target_configargs="--with-cross-host=${host_alias} ${target_configargs}"
1983 fi
1984
1985 # Default to --enable-multilib.
1986 if test x${enable_multilib} = x ; then
1987   target_configargs="--enable-multilib ${target_configargs}"
1988 fi
1989
1990 # Pass --with-newlib if appropriate.  Note that target_configdirs has
1991 # changed from the earlier setting of with_newlib.
1992 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
1993   target_configargs="--with-newlib ${target_configargs}"
1994 fi
1995
1996 # Different target subdirs use different values of certain variables
1997 # (notably CXX).  Worse, multilibs use *lots* of different values.
1998 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
1999 # it doesn't automatically accept command-line overrides of them.
2000 # This means it's not safe for target subdirs to share a cache file,
2001 # which is disgusting, but there you have it.  Hopefully this can be
2002 # fixed in future.  It's still worthwhile to use a cache file for each
2003 # directory.  I think.
2004
2005 # Pass the appropriate --build, --host, --target and --cache-file arguments.
2006 # We need to pass --target, as newer autoconf's requires consistency
2007 # for target_alias and gcc doesn't manage it consistently.
2008 target_configargs="--cache-file=./config.cache --build=${build_alias} --host=${target_alias} --target=${target_alias} ${target_configargs}"
2009
2010 FLAGS_FOR_TARGET=
2011 case " $target_configdirs " in
2012  *" newlib "*)
2013   case " $target_configargs " in
2014   *" --with-newlib "*)
2015    case "$target" in
2016    *-cygwin*)
2017      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' ;;
2018    esac
2019
2020    # If we're not building GCC, don't discard standard headers.
2021    if test -d ${srcdir}/gcc; then
2022      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
2023
2024      if test "${build}" != "${host}"; then
2025        # On Canadian crosses, CC_FOR_TARGET will have already been set
2026        # by `configure', so we won't have an opportunity to add -Bgcc/
2027        # to it.  This is right: we don't want to search that directory
2028        # for binaries, but we want the header files in there, so add
2029        # them explicitly.
2030        FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include'
2031
2032        # Someone might think of using the pre-installed headers on
2033        # Canadian crosses, in case the installed compiler is not fully
2034        # compatible with the compiler being built.  In this case, it
2035        # would be better to flag an error than risking having
2036        # incompatible object files being constructed.  We can't
2037        # guarantee that an error will be flagged, but let's hope the
2038        # compiler will do it, when presented with incompatible header
2039        # files.
2040      fi
2041    fi
2042
2043    case "${target}-${is_cross_compiler}" in
2044    i[[3456789]]86-*-linux*-no)
2045       # Here host == target, so we don't need to build gcc,
2046       # so we don't want to discard standard headers.
2047       FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
2048       ;;
2049    *)
2050       # If we're building newlib, use its generic headers last, but search
2051       # for any libc-related directories first (so make it the last -B
2052       # switch).
2053       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
2054       ;;
2055    esac
2056    ;;
2057   esac
2058   ;;
2059 esac
2060
2061 # Allow the user to override the flags for
2062 # our build compiler if desired.
2063 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
2064
2065 # On Canadian crosses, we'll be searching the right directories for
2066 # the previously-installed cross compiler, so don't bother to add
2067 # flags for directories within the install tree of the compiler
2068 # being built; programs in there won't even run.
2069 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
2070   # Search for pre-installed headers if nothing else fits.
2071   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
2072 fi
2073
2074 if test "x${use_gnu_ld}" = x &&
2075    echo " ${configdirs} " | grep " ld " > /dev/null ; then
2076   # Arrange for us to find uninstalled linker scripts.
2077   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
2078 fi
2079
2080 # Makefile fragments.
2081 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
2082 do
2083   eval fragval=\$$frag
2084   if test $fragval != /dev/null; then
2085     eval $frag=${srcdir}/$fragval
2086   fi
2087 done
2088 AC_SUBST_FILE(host_makefile_frag)
2089 AC_SUBST_FILE(target_makefile_frag)
2090 AC_SUBST_FILE(alphaieee_frag)
2091 AC_SUBST_FILE(ospace_frag)
2092
2093 # Miscellanea: directories, flags, etc.
2094 AC_SUBST(RPATH_ENVVAR)
2095 AC_SUBST(BUILD_PREFIX)
2096 AC_SUBST(BUILD_PREFIX_1)
2097 AC_SUBST(tooldir)
2098 AC_SUBST(build_tooldir)
2099 AC_SUBST(CONFIGURE_GDB_TK)
2100 AC_SUBST(GDB_TK)
2101 AC_SUBST(INSTALL_GDB_TK)
2102
2103 # Build module lists & subconfigure args.
2104 AC_SUBST(build_configargs)
2105 AC_SUBST(build_configdirs)
2106
2107 # Host module lists & subconfigure args.
2108 AC_SUBST(host_configargs)
2109 AC_SUBST(configdirs)
2110
2111 # Target module lists & subconfigure args.
2112 AC_SUBST(target_configargs)
2113 AC_SUBST(target_configdirs)
2114
2115 # Build tools.
2116 AC_SUBST(CC_FOR_BUILD)
2117 AC_SUBST(config_shell)
2118
2119 # Generate default definitions for YACC, M4, LEX and other programs that run
2120 # on the build machine.  These are used if the Makefile can't locate these
2121 # programs in objdir.
2122 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
2123
2124 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
2125 case " $build_configdirs " in
2126   *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
2127   *" byacc "*) YACC='$$r/$(BUILD_SUBDIR)/byacc/byacc' ;;
2128 esac
2129
2130 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
2131 case " $build_configdirs " in
2132   *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
2133 esac
2134
2135 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
2136 case " $build_configdirs " in
2137   *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
2138 esac
2139
2140 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
2141 case " $build_configdirs " in
2142   *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
2143   *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
2144 esac
2145
2146 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
2147 case " $build_configdirs " in
2148   *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
2149 esac
2150
2151 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
2152 case " $build_configdirs " in
2153   *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
2154   *)
2155 changequote(,)
2156     # For an installed makeinfo, we require it to be from texinfo 4.2 or
2157     # higher, else we use the "missing" dummy.
2158     if ${MAKEINFO} --version \
2159        | egrep 'texinfo[^0-9]*([1-3][0-9]|4\.[2-9]|[5-9])' >/dev/null 2>&1; then
2160       :
2161     else
2162       MAKEINFO="$MISSING makeinfo"
2163     fi
2164     ;;
2165 changequote([,])
2166 esac
2167
2168 # FIXME: expect and dejagnu may become build tools?
2169
2170 AC_CHECK_PROGS(EXPECT, expect, expect)
2171 case " $configdirs " in
2172   *" expect "*)
2173     test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
2174     ;;
2175 esac
2176
2177 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
2178 case " $configdirs " in
2179   *" dejagnu "*)
2180     test $host = $build && RUNTEST='$$r/$(HOST_SUBDIR)/dejagnu/runtest'
2181     ;;
2182 esac
2183
2184
2185 # Host tools.
2186 NCN_STRICT_CHECK_TOOLS(AR, ar)
2187 NCN_STRICT_CHECK_TOOLS(AS, as)
2188 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
2189 NCN_STRICT_CHECK_TOOLS(LD, ld)
2190 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
2191 NCN_STRICT_CHECK_TOOLS(NM, nm)
2192 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, :)
2193 NCN_STRICT_CHECK_TOOLS(STRIP, strip, :)
2194 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
2195 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
2196 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
2197 AC_SUBST(CC)
2198 AC_SUBST(CXX)
2199 AC_SUBST(CFLAGS)
2200 AC_SUBST(CFLAGS_FOR_BUILD)
2201 AC_SUBST(CXXFLAGS)
2202
2203 # Target tools.
2204 NCN_STRICT_CHECK_TARGET_TOOLS(AR_FOR_TARGET, ar)
2205 NCN_STRICT_CHECK_TARGET_TOOLS(AS_FOR_TARGET, as)
2206 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
2207 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
2208 NCN_STRICT_CHECK_TARGET_TOOLS(DLLTOOL_FOR_TARGET, dlltool)
2209 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
2210 NCN_STRICT_CHECK_TARGET_TOOLS(GCJ_FOR_TARGET, gcj)
2211 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
2212 NCN_STRICT_CHECK_TARGET_TOOLS(LD_FOR_TARGET, ld)
2213 NCN_STRICT_CHECK_TARGET_TOOLS(LIPO_FOR_TARGET, lipo)
2214 NCN_STRICT_CHECK_TARGET_TOOLS(NM_FOR_TARGET, nm)
2215 NCN_STRICT_CHECK_TARGET_TOOLS(OBJDUMP_FOR_TARGET, objdump)
2216 NCN_STRICT_CHECK_TARGET_TOOLS(RANLIB_FOR_TARGET, ranlib, :)
2217 NCN_STRICT_CHECK_TARGET_TOOLS(STRIP_FOR_TARGET, strip)
2218 NCN_STRICT_CHECK_TARGET_TOOLS(WINDRES_FOR_TARGET, windres)
2219
2220 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
2221
2222 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
2223 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
2224 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2225 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
2226                 [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$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs],
2227                 c++)
2228 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
2229                 [gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs],
2230                 c++)
2231 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
2232 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2233 GCC_TARGET_TOOL(gcj, GCJ_FOR_TARGET, GCJ,
2234                 [gcc/gcj -B$$r/$(HOST_SUBDIR)/gcc/], java)
2235 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
2236                 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
2237 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
2238 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
2239 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
2240 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
2241 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
2242 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip])
2243 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
2244
2245 AC_SUBST(FLAGS_FOR_TARGET)
2246 AC_SUBST(RAW_CXX_FOR_TARGET)
2247
2248 # Certain tools may need extra flags.
2249 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
2250 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
2251 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
2252
2253 # When building target libraries, except in a Canadian cross, we use
2254 # the same toolchain as the compiler we just built.
2255 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
2256 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
2257 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
2258 if test $host = $build; then
2259   case " $configdirs " in
2260     *" gcc "*)
2261       COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
2262       COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
2263       COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
2264       ;;
2265   esac
2266 fi
2267
2268 AC_SUBST(COMPILER_AS_FOR_TARGET)
2269 AC_SUBST(COMPILER_LD_FOR_TARGET)
2270 AC_SUBST(COMPILER_NM_FOR_TARGET)
2271
2272 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2273 AC_ARG_ENABLE(maintainer-mode,
2274 [  --enable-maintainer-mode enable make rules and dependencies not useful
2275                           (and sometimes confusing) to the casual installer],
2276       USE_MAINTAINER_MODE=$enableval,
2277       USE_MAINTAINER_MODE=no)
2278 AC_MSG_RESULT($USE_MAINTAINER_MODE)
2279 AC_SUBST(MAINTAINER_MODE_TRUE)
2280 AC_SUBST(MAINTAINER_MODE_FALSE)
2281 if test "$USE_MAINTAINER_MODE" = yes; then
2282   MAINTAINER_MODE_TRUE=
2283   MAINTAINER_MODE_FALSE='#'
2284 else
2285   MAINTAINER_MODE_TRUE='#'
2286   MAINTAINER_MODE_FALSE=
2287 fi
2288 MAINT=$MAINTAINER_MODE_TRUE
2289 AC_SUBST(MAINT)dnl
2290
2291 # ---------------------
2292 # GCC bootstrap support
2293 # ---------------------
2294
2295 # Stage specific cflags for build.
2296 stage1_cflags="-g"
2297 case $build in
2298   vax-*-*)
2299     case ${GCC} in
2300       yes) stage1_cflags="-g -Wa,-J" ;;
2301       *) stage1_cflags="-g -J" ;;
2302     esac ;;
2303   powerpc-*-darwin*)
2304     # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
2305     # sources; use -no-cpp-precomp to get to GNU cpp.
2306     # Apple's GCC has bugs in designated initializer handling, so disable
2307     # that too.
2308     stage1_cflags="-g -no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
2309     ;;
2310 esac
2311 AC_SUBST(stage1_cflags)
2312
2313 # Enable -Werror in bootstrap stage2 and later.
2314 # Change the default to "no" on release branches.
2315 AC_ARG_ENABLE(werror,
2316 [  --enable-werror         enable -Werror in bootstrap stage2 and later], [],
2317 [enable_werror=yes])
2318 case ${enable_werror} in
2319   yes) stage2_werror_flag="--enable-werror-always" ;;
2320   *) stage2_werror_flag="" ;;
2321 esac
2322 AC_SUBST(stage2_werror_flag)
2323
2324 AC_OUTPUT(Makefile)