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-zlib \
 138         target-qthreads \
 139         target-libjava"
 140
 141 # these libraries are built for the target environment, and are built after
 142 # the host libraries and the host tools (which may be a cross compiler)
 143 #
 144 target_libraries="target-libiberty \
 145                 target-libgloss \
 146                 target-newlib \
 147                 target-libstdc++-v3 \
 148                 target-libmudflap \
 149                 target-libssp \
 150                 target-libgfortran \
 151                 target-boehm-gc \
 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 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 newlib"
 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 gnattools"
 308 fi
 309
 310 AC_ARG_ENABLE(libssp,
 311 [  --enable-libssp        Builds libssp directory],
 312 ENABLE_LIBSSP=$enableval,
 313 ENABLE_LIBSSP=yes)
 314
 315 # Save it here so that, even in case of --enable-libgcj, if the Java
 316 # front-end isn't enabled, we still get libgcj disabled.
 317 libgcj_saved=$libgcj
 318 case $enable_libgcj in
 319 yes)
 320   # If we reset it here, it won't get added to noconfigdirs in the
 321   # target-specific build rules, so it will be forcibly enabled
 322   # (unless the Java language itself isn't enabled).
 323   libgcj=
 324   ;;
 325 no)
 326   # Make sure we get it printed in the list of not supported target libs.
 327   noconfigdirs="$noconfigdirs ${libgcj}"
 328   ;;
 329 esac
 330
 331
 332 # Disable libmudflap on some systems.
 333 if test x$enable_libmudflap = x ; then
 334     case "${target}" in
 335     *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
 336         # Enable libmudflap by default in GNU and friends.
 337         ;;
 338     *-*-freebsd*)
 339         # Enable libmudflap by default in FreeBSD.
 340         ;;
 341     *)
 342         # Disable it by default everywhere else.
 343         noconfigdirs="$noconfigdirs target-libmudflap"
 344         ;;
 345     esac
 346 fi
 347
 348 # Disable libgomp on non POSIX hosted systems.
 349 if test x$enable_libgomp = x ; then
 350     # Enable libgomp by default on hosted POSIX systems.
 351     case "${target}" in
 352     *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
 353         ;;
 354     *-*-netbsd* | *-*-freebsd* | *-*-openbsd*)
 355         ;;
 356     *-*-solaris2* | *-*-sysv4* | *-*-irix6* | *-*-osf* | *-*-hpux11*)
 357         ;;
 358     *-*-darwin* | *-*-aix*)
 359         ;;
 360     *)
 361         noconfigdirs="$noconfigdirs target-libgomp"
 362         ;;
 363     esac
 364 fi
 365
 366
 367 case "${target}" in
 368   *-*-chorusos)
 369     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 370     ;;
 371   powerpc-*-darwin* | i[[3456789]]86-*-darwin*)
 372     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes gdb gprof"
 373     noconfigdirs="$noconfigdirs sim target-rda"
 374     ;;
 375   *-*-darwin*)
 376     noconfigdirs="$noconfigdirs ld gas gdb gprof"
 377     noconfigdirs="$noconfigdirs sim target-rda"
 378     noconfigdirs="$noconfigdirs ${libgcj}"
 379     ;;
 380   *-*-freebsd[[12]] | *-*-freebsd[[12]].* | *-*-freebsd*aout*)
 381     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 382     ;;
 383   *-*-freebsd*)
 384     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 385     if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
 386         && test -f /usr/local/include/gmp.h; then
 387       with_gmp=/usr/local
 388     fi
 389
 390     # Skip some stuff that's unsupported on some FreeBSD configurations.
 391     case "${target}" in
 392       i*86-*-*) ;;
 393       alpha*-*-*) ;;
 394       *)
 395         noconfigdirs="$noconfigdirs ${libgcj}"
 396         ;;
 397     esac
 398     ;;
 399   *-*-kaos*)
 400     # Remove unsupported stuff on all kaOS configurations.
 401     skipdirs="target-libiberty ${libgcj} target-libstdc++-v3 target-librx"
 402     skipdirs="$skipdirs target-libobjc target-examples target-groff target-gperf"
 403     skipdirs="$skipdirs zlib fastjar target-libjava target-boehm-gc target-zlib"
 404     noconfigdirs="$noconfigdirs target-libgloss"
 405     ;;
 406   *-*-netbsd*)
 407     # Skip some stuff on all NetBSD configurations.
 408     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss"
 409
 410     # Skip some stuff that's unsupported on some NetBSD configurations.
 411     case "${target}" in
 412       i*86-*-netbsdelf*) ;;
 413       arm*-*-netbsdelf*) ;;
 414       *)
 415         noconfigdirs="$noconfigdirs ${libgcj}"
 416         ;;
 417     esac
 418     ;;
 419   *-*-netware*)
 420     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss ${libgcj} target-libmudflap"
 421     ;;
 422   *-*-rtems*)
 423     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 424     ;;
 425     # The tpf target doesn't support gdb yet.
 426   *-*-tpf*)
 427     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty ${libgcj} target-libmudflap gdb tcl tk libgui itcl"
 428     ;;
 429   *-*-uclinux*)
 430     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-rda ${libgcj}"
 431     ;;
 432   *-*-vxworks*)
 433     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty target-libstdc++-v3 ${libgcj}"
 434     ;;
 435   alpha*-dec-osf*)
 436     # ld works, but does not support shared libraries.
 437     # newlib is not 64 bit ready.  I'm not sure about fileutils.
 438     # gas doesn't generate exception information.
 439     noconfigdirs="$noconfigdirs gas ld fileutils target-newlib target-libgloss"
 440     ;;
 441   alpha*-*-*vms*)
 442     noconfigdirs="$noconfigdirs gdb ld target-newlib target-libgloss ${libgcj}"
 443     ;;
 444   alpha*-*-linux*)
 445     # newlib is not 64 bit ready
 446     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 447     ;;
 448   alpha*-*-*)
 449     # newlib is not 64 bit ready
 450     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 451     ;;
 452   am33_2.0-*-linux*)
 453     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 454     ;;
 455   sh-*-linux*)
 456     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 457     ;;
 458   sh*-*-pe|mips*-*-pe|*arm-wince-pe)
 459     noconfigdirs="$noconfigdirs ${libgcj}"
 460     noconfigdirs="$noconfigdirs target-examples"
 461     noconfigdirs="$noconfigdirs target-libiberty texinfo send-pr"
 462     noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
 463     noconfigdirs="$noconfigdirs expect dejagnu"
 464     # the C++ libraries don't build on top of CE's C libraries
 465     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 466     noconfigdirs="$noconfigdirs target-newlib"
 467     case "${host}" in
 468       *-*-cygwin*) ;; # keep gdb and readline
 469       *) noconfigdirs="$noconfigdirs gdb readline"
 470          ;;
 471     esac
 472     ;;
 473   arc-*-*)
 474     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 475     ;;
 476   arm-semi-aof )
 477     ;;
 478   arm-*-coff | strongarm-*-coff | xscale-*-coff)
 479     noconfigdirs="$noconfigdirs ${libgcj}"
 480     ;;
 481   arm-*-elf* | strongarm-*-elf* | xscale-*-elf* | arm*-*-eabi* )
 482     noconfigdirs="$noconfigdirs target-libffi target-qthreads"
 483     ;;
 484   arm*-*-linux-gnueabi)
 485     noconfigdirs="$noconfigdirs target-libffi target-qthreads"
 486     noconfigdirs="$noconfigdirs target-libjava target-libobjc"
 487     ;;
 488   arm*-*-symbianelf*)
 489     noconfigdirs="$noconfigdirs ${libgcj} target-libiberty"
 490     ;;
 491   arm-*-pe*)
 492     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 493     ;;
 494   thumb-*-coff)
 495     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 496     ;;
 497   thumb-*-elf)
 498     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 499     ;;
 500   thumb-*-pe)
 501     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 502     ;;
 503   arm-*-riscix*)
 504     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 505     ;;
 506   avr-*-*)
 507     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 508     ;;
 509   bfin-*-*)
 510     noconfigdirs="$noconfigdirs gdb"
 511     if test x${is_cross_compiler} != xno ; then
 512       target_configdirs="${target_configdirs} target-bsp target-cygmon"
 513     fi
 514     ;;
 515   c4x-*-* | tic4x-*-*)
 516     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 517     ;;
 518   c54x*-*-* | tic54x-*-*)
 519     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj} gcc gdb newlib"
 520     ;;
 521   cris-*-* | crisv32-*-*)
 522     unsupported_languages="$unsupported_languages java"
 523     case "${target}" in
 524       *-*-aout)
 525         unsupported_languages="$unsupported_languages fortran"
 526         noconfigdirs="$noconfigdirs target-libffi target-boehm-gc";;
 527       *-*-elf)
 528         unsupported_languages="$unsupported_languages fortran"
 529         noconfigdirs="$noconfigdirs target-boehm-gc";;
 530       *-*-linux*)
 531         noconfigdirs="$noconfigdirs target-newlib target-libgloss";;
 532       *)
 533         unsupported_languages="$unsupported_languages fortran"
 534         noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss";;
 535     esac
 536     ;;
 537   crx-*-*)
 538     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-mudflap ${libgcj}"
 539     ;;
 540   d10v-*-*)
 541     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 542     ;;
 543   d30v-*-*)
 544     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 545     ;;
 546   fr30-*-elf*)
 547     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 548     ;;
 549   frv-*-*)
 550     noconfigdirs="$noconfigdirs ${libgcj}"
 551     ;;
 552   h8300*-*-*)
 553     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 554     ;;
 555   h8500-*-*)
 556     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 557     ;;
 558   hppa1.1-*-osf* | hppa1.1-*-bsd* )
 559     ;;
 560   hppa*64*-*-linux* | parisc*64*-*-linux*)
 561     # In this case, it's because the hppa64-linux target is for
 562     # the kernel only at this point and has no libc, and thus no
 563     # headers, crt*.o, etc., all of which are needed by these.
 564     noconfigdirs="$noconfigdirs target-zlib"
 565     ;;
 566   parisc*-*-linux* | hppa*-*-linux*)
 567     ;;
 568   hppa*-*-*elf* | \
 569   hppa*-*-lites* | \
 570   hppa*-*-openbsd* | \
 571   hppa*64*-*-*)
 572     noconfigdirs="$noconfigdirs ${libgcj}"
 573     ;;
 574   hppa*-hp-hpux11*)
 575     noconfigdirs="$noconfigdirs ld shellutils"
 576     ;;
 577   hppa*-*-*)
 578     # According to Alexandre Oliva <aoliva@redhat.com>, libjava won't
 579     # build on HP-UX 10.20.
 580     noconfigdirs="$noconfigdirs ld shellutils ${libgcj}"
 581     ;;
 582   i960-*-*)
 583     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 584     ;;
 585   ia64*-*-elf*)
 586     # No gdb support yet.
 587     noconfigdirs="$noconfigdirs readline mmalloc libgui itcl gdb"
 588     ;;
 589   ia64*-**-hpux*)
 590     # No gdb or ld support yet.
 591     noconfigdirs="$noconfigdirs ${libgcj} readline mmalloc libgui itcl gdb ld"
 592     ;;
 593   i370-*-opened*)
 594     ;;
 595   i[[3456789]]86-*-coff | i[[3456789]]86-*-elf)
 596     noconfigdirs="$noconfigdirs ${libgcj}"
 597     ;;
 598   i[[3456789]]86-*-linux*)
 599     # The GCC port for glibc1 has no MD_FALLBACK_FRAME_STATE_FOR, so let's
 600     # not build java stuff by default.
 601     case "${target}" in
 602       *-*-*libc1*)
 603         noconfigdirs="$noconfigdirs ${libgcj}";;
 604     esac
 605
 606     # This section makes it possible to build newlib natively on linux.
 607     # If we are using a cross compiler then don't configure newlib.
 608     if test x${is_cross_compiler} != xno ; then
 609       noconfigdirs="$noconfigdirs target-newlib"
 610     fi
 611     noconfigdirs="$noconfigdirs target-libgloss"
 612     # If we are not using a cross compiler, do configure newlib.
 613     # Note however, that newlib will only be configured in this situation
 614     # if the --with-newlib option has been given, because otherwise
 615     # 'target-newlib' will appear in skipdirs.
 616     ;;
 617   i[[3456789]]86-*-mingw32*)
 618     target_configdirs="$target_configdirs target-winsup"
 619     noconfigdirs="$noconfigdirs expect target-libgloss target-newlib ${libgcj}"
 620     ;;
 621   *-*-cygwin*)
 622     target_configdirs="$target_configdirs target-libtermcap target-winsup"
 623     noconfigdirs="$noconfigdirs target-gperf target-libgloss ${libgcj}"
 624     # always build newlib if winsup directory is present.
 625     if test -d "$srcdir/winsup/cygwin"; then
 626       skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 627     elif test -d "$srcdir/newlib"; then
 628       echo "Warning: winsup/cygwin is missing so newlib can't be built."
 629     fi
 630     ;;
 631   i[[3456789]]86-moss-msdos | i[[3456789]]86-*-moss* | \
 632   i[[3456789]]86-*-uwin* | i[[3456789]]86-*-interix* )
 633     ;;
 634   i[[3456789]]86-*-pe)
 635     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 636     ;;
 637   i[[3456789]]86-*-sco3.2v5*)
 638     # The linker does not yet know about weak symbols in COFF,
 639     # and is not configured to handle mixed ELF and COFF.
 640     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 641     ;;
 642   i[[3456789]]86-*-sco*)
 643     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 644     ;;
 645   i[[3456789]]86-*-solaris2*)
 646     noconfigdirs="$noconfigdirs target-libgloss"
 647     ;;
 648   i[[3456789]]86-*-sysv4*)
 649     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 650     ;;
 651   i[[3456789]]86-*-beos*)
 652     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 653     ;;
 654   i[[3456789]]86-*-rdos*)
 655     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 656     ;;
 657   m32r-*-*)
 658     noconfigdirs="$noconfigdirs ${libgcj}"
 659     ;;
 660   m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
 661     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 662     ;;
 663   m68k-*-elf*)
 664     noconfigdirs="$noconfigdirs ${libgcj}"
 665     ;;
 666   m68k-*-coff*)
 667     noconfigdirs="$noconfigdirs ${libgcj}"
 668     ;;
 669   mcore-*-pe*)
 670   # The EPOC C++ environment does not support exceptions or rtti,
 671   # and so building libstdc++-v3 tends not to always work.
 672     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 673     ;;
 674   mmix-*-*)
 675     noconfigdirs="$noconfigdirs target-libffi target-boehm-gc gdb libgloss"
 676     unsupported_languages="$unsupported_languages fortran java"
 677     ;;
 678   mn10200-*-*)
 679     noconfigdirs="$noconfigdirs ${libgcj}"
 680     ;;
 681   mn10300-*-*)
 682     noconfigdirs="$noconfigdirs ${libgcj}"
 683     ;;
 684   mt-*-*)
 685     noconfigdirs="$noconfigdirs sim"
 686     ;;
 687   powerpc-*-aix*)
 688     # copied from rs6000-*-* entry
 689     noconfigdirs="$noconfigdirs gprof target-libgloss target-libssp ${libgcj}"
 690     ;;
 691   powerpc*-*-winnt* | powerpc*-*-pe* | ppc*-*-pe)
 692     target_configdirs="$target_configdirs target-winsup"
 693     noconfigdirs="$noconfigdirs gdb tcl tk make expect target-libgloss itcl gnuserv ${libgcj}"
 694     # always build newlib.
 695     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 696     ;;
 697     # This is temporary until we can link against shared libraries
 698   powerpcle-*-solaris*)
 699     noconfigdirs="$noconfigdirs gdb sim make tcl tk expect itcl gnuserv ${libgcj}"
 700     ;;
 701   powerpc-*-beos*)
 702     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 703     ;;
 704   powerpc-*-eabi)
 705     noconfigdirs="$noconfigdirs ${libgcj}"
 706     ;;
 707   powerpc-*-eabi* | powerpcle-*-eabi* | powerpc-*-rtems* )
 708     ;;
 709   rs6000-*-lynxos*)
 710     noconfigdirs="$noconfigdirs target-newlib gprof ${libgcj}"
 711     ;;
 712   rs6000-*-aix*)
 713     noconfigdirs="$noconfigdirs gprof target-libgloss target-libssp ${libgcj}"
 714     ;;
 715   rs6000-*-*)
 716     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 717     ;;
 718   m68k-apollo-*)
 719     noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss ${libgcj}"
 720     ;;
 721   mips*-*-irix5*)
 722     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 723     ;;
 724   mips*-*-irix6*)
 725     # Linking libjava exceeds command-line length limits on at least
 726     # IRIX 6.2, but not on IRIX 6.5.
 727     # Also, boehm-gc won't build on IRIX 6.5, according to Jeffrey Oldham
 728     # <oldham@codesourcery.com>
 729     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 730     ;;
 731   mips*-*-bsd*)
 732     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 733     ;;
 734   mips64*-*-linux*)
 735     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 736     ;;
 737   mips*-*-linux*)
 738     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 739     ;;
 740   mips*-*-*)
 741     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 742     ;;
 743   romp-*-*)
 744     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes target-libgloss ${libgcj}"
 745     ;;
 746   sh-*-* | sh64-*-*)
 747     case "${host}" in
 748       i[[3456789]]86-*-vsta) ;; # don't add gprof back in
 749       i[[3456789]]86-*-go32*) ;; # don't add gprof back in
 750       i[[3456789]]86-*-msdosdjgpp*) ;; # don't add gprof back in
 751       *) skipdirs=`echo " ${skipdirs} " | sed -e 's/ gprof / /'` ;;
 752     esac
 753     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 754     ;;
 755   sparc-*-elf*)
 756     noconfigdirs="$noconfigdirs ${libgcj}"
 757     ;;
 758   sparc64-*-elf*)
 759     noconfigdirs="$noconfigdirs ${libgcj}"
 760     ;;
 761   sparclite-*-*)
 762     noconfigdirs="$noconfigdirs ${libgcj}"
 763     ;;
 764   sparc-*-sunos4*)
 765     noconfigdirs="$noconfigdirs ${libgcj}"
 766     if test x${is_cross_compiler} != xno ; then
 767            noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 768     else
 769            use_gnu_ld=no
 770     fi
 771     ;;
 772   sparc-*-solaris2.[[0-6]] | sparc-*-solaris2.[[0-6]].*)
 773     noconfigdirs="$noconfigdirs ${libgcj}"
 774     ;;
 775   sparc-*-solaris* | sparc64-*-solaris* | sparcv9-*-solaris*)
 776     ;;
 777   spu-*-*)
 778     skipdirs="target-libssp"
 779     ;;
 780   v810-*-*)
 781     noconfigdirs="$noconfigdirs bfd binutils gas gcc gdb ld target-libstdc++-v3 opcodes target-libgloss ${libgcj}"
 782     ;;
 783   v850-*-*)
 784     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 785     ;;
 786   v850e-*-*)
 787     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 788     ;;
 789   v850ea-*-*)
 790     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 791     ;;
 792   vax-*-vms)
 793     noconfigdirs="$noconfigdirs bfd binutils gdb ld target-newlib opcodes target-libgloss ${libgcj}"
 794     ;;
 795   vax-*-*)
 796     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 797     ;;
 798   xtensa-*-*)
 799     noconfigdirs="$noconfigdirs ${libgcj}"
 800     ;;
 801   ip2k-*-*)
 802     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 803     ;;
 804   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
 805     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 806     ;;
 807   *-*-lynxos*)
 808     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 809     ;;
 810   *-*-*)
 811     noconfigdirs="$noconfigdirs ${libgcj}"
 812     ;;
 813 esac
 814
 815 # If we aren't building newlib, then don't build libgloss, since libgloss
 816 # depends upon some newlib header files.
 817 case "${noconfigdirs}" in
 818   *target-libgloss*) ;;
 819   *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
 820 esac
 821
 822 # Work in distributions that contain no compiler tools, like Autoconf.
 823 tentative_cc=""
 824 host_makefile_frag=/dev/null
 825 if test -d ${srcdir}/config ; then
 826 case "${host}" in
 827   m68k-hp-hpux*)
 828     # Avoid "too much defining" errors from HPUX compiler.
 829     tentative_cc="cc -Wp,-H256000"
 830     # If "ar" in $PATH is GNU ar, the symbol table may need rebuilding.
 831     # If it's HP/UX ar, this should be harmless.
 832     RANLIB="ar ts"
 833     ;;
 834   m68k-apollo-sysv*)
 835     tentative_cc="cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DUSG"
 836     ;;
 837   m68k-apollo-bsd*)
 838     #None of the Apollo compilers can compile gas or binutils.  The preprocessor
 839     # chokes on bfd, the compiler won't let you assign integers to enums, and
 840     # other problems.  Defining CC to gcc is a questionable way to say "don't use
 841     # the apollo compiler" (the preferred version of GCC could be called cc,
 842     # or whatever), but I'm not sure leaving CC as cc is any better...
 843     #CC=cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DNO_STDARG
 844     # Used to have BISON=yacc.
 845     tentative_cc=gcc
 846     ;;
 847   m88k-dg-dgux*)
 848     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 849     ;;
 850   m88k-harris-cxux*)
 851     # Under CX/UX, we want to tell the compiler to use ANSI mode.
 852     tentative_cc="cc -Xa"
 853     host_makefile_frag="config/mh-cxux"
 854     ;;
 855   m88k-motorola-sysv*)
 856     ;;
 857   mips*-dec-ultrix*)
 858     tentative_cc="cc -Wf,-XNg1000"
 859     host_makefile_frag="config/mh-decstation"
 860     ;;
 861   mips*-nec-sysv4*)
 862     # The C compiler on NEC MIPS SVR4 needs bigger tables.
 863     tentative_cc="cc -ZXNd=5000 -ZXNg=1000"
 864     host_makefile_frag="config/mh-necv4"
 865     ;;
 866   mips*-sgi-irix4*)
 867     # Tell compiler to use K&R C.  We can't compile under the SGI Ansi
 868     # environment.  Also bump switch table size so that cp-parse will
 869     # compile.  Bump string length limit so linker builds.
 870     tentative_cc="cc -cckr -Wf,-XNg1500 -Wf,-XNk1000 -Wf,-XNh2000 -Wf,-XNl8192"
 871     ;;
 872   mips*-*-sysv4*)
 873     host_makefile_frag="config/mh-sysv4"
 874     ;;
 875   mips*-*-sysv*)
 876     # This is for a MIPS running RISC/os 4.52C.
 877
 878     # This is needed for GDB, but needs to be in the top-level make because
 879     # if a library is compiled with the bsd headers and gets linked with the
 880     # sysv system libraries all hell can break loose (e.g. a jmp_buf might be
 881     # a different size).
 882     # ptrace(2) apparently has problems in the BSD environment.  No workaround is
 883     # known except to select the sysv environment.  Could we use /proc instead?
 884     # These "sysv environments" and "bsd environments" often end up being a pain.
 885     #
 886     # This is not part of CFLAGS because perhaps not all C compilers have this
 887     # option.
 888     tentative_cc="cc -systype sysv"
 889     ;;
 890   i370-ibm-opened*)
 891     tentative_cc="c89"
 892     ;;
 893   i[[3456789]]86-*-sysv5*)
 894     host_makefile_frag="config/mh-sysv5"
 895     ;;
 896   i[[3456789]]86-*-dgux*)
 897     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 898     host_makefile_frag="config/mh-dgux386"
 899     ;;
 900   i[[3456789]]86-ncr-sysv4.3*)
 901     # The MetaWare compiler will generate a copyright message unless you
 902     # turn it off by adding the -Hnocopyr flag.
 903     tentative_cc="cc -Hnocopyr"
 904     ;;
 905   i[[3456789]]86-ncr-sysv4*)
 906     # for an NCR 3000 (i486/SVR4) system.
 907     # The NCR 3000 ships with a MetaWare compiler installed as /bin/cc.
 908     # This compiler not only emits obnoxious copyright messages every time
 909     # you run it, but it chokes and dies on a whole bunch of GNU source
 910     # files.  Default to using the AT&T compiler installed in /usr/ccs/ATT/cc.
 911     tentative_cc="/usr/ccs/ATT/cc"
 912     host_makefile_frag="config/mh-ncr3000"
 913     ;;
 914   i[[3456789]]86-*-sco3.2v5*)
 915     ;;
 916   i[[3456789]]86-*-sco*)
 917     # The native C compiler botches some simple uses of const.  Unfortunately,
 918     # it doesn't defined anything like "__sco__" for us to test for in ansidecl.h.
 919     tentative_cc="cc -Dconst="
 920     host_makefile_frag="config/mh-sco"
 921     ;;
 922   i[[3456789]]86-*-udk*)
 923     host_makefile_frag="config/mh-sysv5"
 924     ;;
 925   i[[3456789]]86-*-solaris2*)
 926     host_makefile_frag="config/mh-sysv4"
 927     ;;
 928   i[[3456789]]86-*-msdosdjgpp*)
 929     host_makefile_frag="config/mh-djgpp"
 930     ;;
 931   *-cygwin*)
 932     host_makefile_frag="config/mh-cygwin"
 933     ;;
 934   *-mingw32*)
 935     ;;
 936   *-interix*)
 937     host_makefile_frag="config/mh-interix"
 938     ;;
 939   vax-*-ultrix2*)
 940     # The old BSD pcc isn't up to compiling parts of gdb so use gcc
 941     tentative_cc=gcc
 942     ;;
 943   *-*-solaris2*)
 944     host_makefile_frag="config/mh-solaris"
 945     ;;
 946   m68k-sun-sunos*)
 947     # Sun's C compiler needs the -J flag to be able to compile cp-parse.c
 948     # without overflowing the jump tables (-J says to use a 32 bit table)
 949     tentative_cc="cc -J"
 950     ;;
 951   *-hp-hpux*)
 952     tentative_cc="cc -Wp,-H256000"
 953     ;;
 954   *-*-hiux*)
 955     tentative_cc="cc -Wp,-H256000"
 956     ;;
 957   rs6000-*-lynxos*)
 958     # /bin/cc is less than useful for our purposes.  Always use GCC
 959     tentative_cc="/usr/cygnus/progressive/bin/gcc"
 960     host_makefile_frag="config/mh-lynxrs6k"
 961     ;;
 962   powerpc-*-darwin*)
 963     host_makefile_frag="config/mh-ppc-darwin"
 964     ;;
 965   powerpc-*-aix*)
 966     host_makefile_frag="config/mh-ppc-aix"
 967     ;;
 968   rs6000-*-aix*)
 969     host_makefile_frag="config/mh-ppc-aix"
 970     ;;
 971   *-*-lynxos*)
 972     # /bin/cc is less than useful for our purposes.  Always use GCC
 973     tentative_cc="/bin/gcc"
 974     ;;
 975   *-*-sysv4*)
 976     host_makefile_frag="config/mh-sysv4"
 977     ;;
 978   # This is placed last to prevent interfering with the cases above.
 979   i[[3456789]]86-*-*)
 980     # Build the stage2 and stage3 compilers with -fomit-frame-pointer.
 981     host_makefile_frag="config/mh-x86omitfp"
 982     ;;
 983 esac
 984 fi
 985
 986 # If we aren't going to be using gcc, see if we can extract a definition
 987 # of CC from the fragment.
 988 # Actually, use the 'pre-extracted' version above.
 989 if test -z "${CC}" && test "${build}" = "${host}" ; then
 990   IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
 991   found=
 992   for dir in $PATH; do
 993     test -z "$dir" && dir=.
 994     if test -f $dir/gcc; then
 995       found=yes
 996       break
 997     fi
 998   done
 999   IFS="$save_ifs"
1000   if test -z "${found}" && test -n "${tentative_cc}" ; then
1001     CC=$tentative_cc
1002   fi
1003 fi
1004
1005 if test "${build}" != "${host}" ; then
1006   # If we are doing a Canadian Cross, in which the host and build systems
1007   # are not the same, we set reasonable default values for the tools.
1008
1009   CC=${CC-${host_alias}-gcc}
1010   CFLAGS=${CFLAGS-"-g -O2"}
1011   CXX=${CXX-${host_alias}-c++}
1012   CXXFLAGS=${CXXFLAGS-"-g -O2"}
1013   CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1014
1015 else
1016   # Set reasonable default values for some tools even if not Canadian.
1017   # Of course, these are different reasonable default values, originally
1018   # specified directly in the Makefile.
1019   # We don't export, so that autoconf can do its job.
1020   # Note that all these settings are above the fragment inclusion point
1021   # in Makefile.in, so can still be overridden by fragments.
1022   # This is all going to change when we autoconfiscate...
1023
1024   CC_FOR_BUILD="\$(CC)"
1025   AC_PROG_CC
1026
1027   # We must set the default linker to the linker used by gcc for the correct
1028   # operation of libtool.  If LD is not defined and we are using gcc, try to
1029   # set the LD default to the ld used by gcc.
1030   if test -z "$LD"; then
1031     if test "$GCC" = yes; then
1032       case $build in
1033       *-*-mingw*)
1034         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1035       *)
1036         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1037       esac
1038       case $gcc_prog_ld in
1039       # Accept absolute paths.
1040       [[\\/]* | [A-Za-z]:[\\/]*)]
1041         LD="$gcc_prog_ld" ;;
1042       esac
1043     fi
1044   fi
1045
1046   CXX=${CXX-"c++"}
1047   CFLAGS=${CFLAGS-"-g"}
1048   CXXFLAGS=${CXXFLAGS-"-g -O2"}
1049 fi
1050
1051 ACX_PROG_GNAT
1052 ACX_PROG_CMP_IGNORE_INITIAL
1053
1054 # Check for GMP and MPFR
1055 gmplibs="-lmpfr"
1056 gmpinc=
1057 have_gmp=yes
1058 # Specify a location for mpfr
1059 # check for this first so it ends up on the link line before gmp.
1060 AC_ARG_WITH(mpfr-dir, [  --with-mpfr-dir=PATH    This option has been REMOVED],
1061   AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed.
1062 Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH]))
1063
1064 AC_ARG_WITH(mpfr, [  --with-mpfr=PATH        Specify prefix directory for installed MPFR package
1065                           Equivalent to --with-mpfr-include=PATH/include
1066                           plus --with-mpfr-lib=PATH/lib])
1067 AC_ARG_WITH(mpfr_include, [  --with-mpfr-include=PATH
1068                           Specify directory for installed MPFR include files])
1069 AC_ARG_WITH(mpfr_lib, [  --with-mpfr-lib=PATH    Specify the directory for the installed MPFR library])
1070
1071 if test "x$with_mpfr" != x; then
1072   gmplibs="-L$with_mpfr/lib $gmplibs"
1073   gmpinc="-I$with_mpfr/include"
1074 fi
1075 if test "x$with_mpfr_include" != x; then
1076   gmpinc="-I$with_mpfr_include"
1077 fi
1078 if test "x$with_mpfr_lib" != x; then
1079   gmplibs="-L$with_mpfr_lib $gmplibs"
1080 fi
1081
1082 # Specify a location for gmp
1083 AC_ARG_WITH(gmp-dir, [  --with-gmp-dir=PATH     This option has been REMOVED],
1084   AC_MSG_ERROR([The --with-gmp-dir=PATH option has been removed.
1085 Use --with-gmp=PATH or --with-gmp-include=PATH plus --with-gmp-lib=PATH]))
1086
1087 gmplibs="$gmplibs -lgmp"
1088
1089 AC_ARG_WITH(gmp, [  --with-gmp=PATH         Specify prefix directory for the installed GMP package
1090                           Equivalent to --with-gmp-include=PATH/include
1091                           plus --with-gmp-lib=PATH/lib])
1092 AC_ARG_WITH(gmp_include, [  --with-gmp-include=PATH Specify directory for installed GMP include files])
1093 AC_ARG_WITH(gmp_lib, [  --with-gmp-lib=PATH     Specify the directory for the installed GMP library])
1094
1095
1096 if test "x$with_gmp" != x; then
1097   gmplibs="-L$with_gmp/lib $gmplibs"
1098   gmpinc="-I$with_gmp/include $gmpinc"
1099 fi
1100 if test "x$with_gmp_include" != x; then
1101   gmpinc="-I$with_gmp_include $gmpinc"
1102 fi
1103 if test "x$with_gmp_lib" != x; then
1104   gmplibs="-L$with_gmp_lib $gmplibs"
1105 fi
1106
1107 saved_CFLAGS="$CFLAGS"
1108 CFLAGS="$CFLAGS $gmpinc"
1109 # Check GMP actually works
1110 AC_MSG_CHECKING([for correct version of gmp.h])
1111 AC_TRY_COMPILE([#include "gmp.h"],[
1112 #if __GNU_MP_VERSION < 4 || (__GNU_MP_VERSION == 4 && __GNU_MP_VERSION_MINOR < 1)
1113 choke me
1114 #endif
1115 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1116
1117 if test x"$have_gmp" = xyes; then
1118   saved_LIBS="$LIBS"
1119   LIBS="$LIBS $gmplibs"
1120   dnl MPFR 2.2.0 is acceptable but buggy, MPFR 2.2.1 is better.
1121   AC_MSG_CHECKING([for correct version of mpfr.h])
1122   AC_TRY_LINK([#include <gmp.h>
1123 #include <mpfr.h>],[
1124 #if MPFR_VERSION < MPFR_VERSION_NUM(2,2,0)
1125   choke me
1126 #endif
1127   mpfr_t n; mpfr_init(n);
1128 ], [AC_TRY_LINK([#include <gmp.h>
1129 #include <mpfr.h>],[
1130 #if MPFR_VERSION < MPFR_VERSION_NUM(2,2,1)
1131   choke me
1132 #endif
1133   mpfr_t n; mpfr_init(n);
1134 ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1135    [AC_MSG_RESULT([no]); have_gmp=no])
1136   LIBS="$saved_LIBS"
1137 fi
1138 CFLAGS="$saved_CFLAGS"
1139
1140 if test -d ${srcdir}/gcc && test x$have_gmp != xyes; then
1141   AC_MSG_ERROR([Building GCC requires GMP 4.1+ and MPFR 2.2.1+.
1142 Try the --with-gmp and/or --with-mpfr options to specify their locations.
1143 Copies of these libraries' source code can be found at their respective
1144 hosting sites as well as at ftp://gcc.gnu.org/pub/gcc/infrastructure/.
1145 See also http://gcc.gnu.org/install/prerequisites.html for additional info.
1146 If you obtained GMP and/or MPFR from a vendor distribution package, make
1147 sure that you have installed both the libraries and the header files.
1148 They may be located in separate packages.])
1149 fi
1150
1151 # Flags needed for both GMP and/or MPFR
1152 AC_SUBST(gmplibs)
1153 AC_SUBST(gmpinc)
1154
1155 # By default, C is the only stage 1 language.
1156 stage1_languages=c
1157 AC_SUBST(stage1_languages)
1158
1159 # Figure out what language subdirectories are present.
1160 # Look if the user specified --enable-languages="..."; if not, use
1161 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1162 # go away some day.
1163 # NB:  embedded tabs in this IF block -- do not untabify
1164 if test -d ${srcdir}/gcc; then
1165   if test x"${enable_languages+set}" != xset; then
1166     if test x"${LANGUAGES+set}" = xset; then
1167       enable_languages="${LANGUAGES}"
1168         echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1169     else
1170       enable_languages=all
1171     fi
1172   else
1173     if test x"${enable_languages}" = x ||
1174        test x"${enable_languages}" = xyes;
1175        then
1176       echo configure.in: --enable-languages needs at least one language argument 1>&2
1177       exit 1
1178     fi
1179   fi
1180   enable_languages=`echo "${enable_languages}" | sed -e 's/[[   ,]][[   ,]]*/,/g' -e 's/,$//'`
1181
1182   # 'f95' is the old name for the 'fortran' language. We issue a warning
1183   # and make the substitution.
1184   case ,${enable_languages}, in
1185     *,f95,*)
1186       echo configure.in: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
1187       enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1188       ;;
1189   esac
1190
1191   # First scan to see if an enabled language requires some other language.
1192   # We assume that a given config-lang.in will list all the language
1193   # front ends it requires, even if some are required indirectly.
1194   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1195     case ${lang_frag} in
1196       ..) ;;
1197       # The odd quoting in the next line works around
1198       # an apparent bug in bash 1.12 on linux.
1199       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1200       *)
1201         # From the config-lang.in, get $language, $lang_requires
1202         language=
1203         lang_requires=
1204         . ${lang_frag}
1205         for other in ${lang_requires} ; do
1206           case ,${enable_languages}, in
1207             *,$other,*) ;;
1208             *,all,*) ;;
1209             *,$language,*)
1210               echo " \`$other' language required by \`$language'; enabling" 1>&2
1211               enable_languages="${enable_languages},${other}"
1212               ;;
1213           esac
1214         done
1215         ;;
1216     esac
1217   done
1218
1219   new_enable_languages=c
1220   missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
1221   potential_languages=c
1222
1223   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1224     case ${lang_frag} in
1225       ..) ;;
1226       # The odd quoting in the next line works around
1227       # an apparent bug in bash 1.12 on linux.
1228       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1229       *)
1230         # From the config-lang.in, get $language, $target_libs,
1231         # $lang_dirs, $boot_language, and $build_by_default
1232         language=
1233         target_libs=
1234         lang_dirs=
1235         subdir_requires=
1236         boot_language=
1237         build_by_default=
1238         . ${lang_frag}
1239         potential_languages="${potential_languages},${language}"
1240         # This is quite sensitive to the ordering of the case statement arms.
1241         case ,${enable_languages},:${language}:${have_gnat}:${build_by_default} in
1242           *::*:*)
1243             echo "${lang_frag} doesn't set \$language." 1>&2
1244             exit 1
1245             ;;
1246           *:ada:no:*)
1247             # Ada was requested with no preexisting GNAT.  Disable unconditionally.
1248             add_this_lang=no
1249             ;;
1250           *,${language},*:*:*:*)
1251             # Language was explicitly selected; include it.
1252             add_this_lang=yes
1253             ;;
1254           *,all,*:*:*:no)
1255             # 'all' was selected, but this is not a default language
1256             # so do not include it.
1257             add_this_lang=no
1258             ;;
1259           *,all,*:*:*:*)
1260             # 'all' was selected and this is a default language; include it.
1261             add_this_lang=yes
1262             ;;
1263           *)
1264             add_this_lang=no
1265             ;;
1266         esac
1267
1268         # Disable languages that need other directories if these aren't available.
1269         for i in $subdir_requires; do
1270           test -f "$srcdir/gcc/$i/config-lang.in" && continue
1271           case ,${enable_languages}, in
1272             *,${language},*)
1273               # Specifically requested language; tell them.
1274               AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
1275               ;;
1276             *)
1277               # Silently disable.
1278               add_this_lang=no
1279               ;;
1280           esac
1281         done
1282
1283         # Disable a language that is unsupported by the target.
1284         case " $unsupported_languages " in
1285           *" $language "*)
1286             add_this_lang=no
1287             ;;
1288         esac
1289
1290         case $add_this_lang in
1291           no)
1292             # Remove language-dependent dirs.
1293             eval noconfigdirs='"$noconfigdirs "'\"$target_libs $lang_dirs\"
1294             ;;
1295           *)
1296             new_enable_languages="$new_enable_languages,$language"
1297             missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
1298             case ${boot_language} in
1299               yes)
1300                 # Add to (comma-separated) list of stage 1 languages.
1301                 stage1_languages="${stage1_languages},${language}"
1302                 ;;
1303             esac
1304             ;;
1305         esac
1306         ;;
1307     esac
1308   done
1309
1310   missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
1311   if test "x$missing_languages" != x; then
1312     AC_MSG_ERROR([
1313 The following requested languages could not be built: ${missing_languages}
1314 Recognised languages are: ${potential_languages}])
1315   fi
1316
1317   if test "x$new_enable_languages" != "x$enable_languages"; then
1318     echo The following languages will be built: ${new_enable_languages}
1319   fi
1320   enable_languages="$new_enable_languages"
1321   ac_configure_args=`echo " $ac_configure_args" | sed -e 's/ --enable-languages=[[^ ]]*//' -e 's/$/ --enable-languages='"$enable_languages"/ `
1322 fi
1323
1324 # Handle --disable-<component> generically.
1325 for dir in $configdirs $build_configdirs $target_configdirs ; do
1326   dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
1327   if eval test x\${enable_${dirname}} "=" xno ; then
1328     noconfigdirs="$noconfigdirs $dir"
1329   fi
1330 done
1331
1332 # Check for Boehm's garbage collector
1333 AC_ARG_ENABLE(objc-gc,
1334 [  --enable-objc-gc       enable the use of Boehm's garbage collector with
1335                           the GNU Objective-C runtime.],
1336 [case ,${enable_languages},:${enable_objc_gc}:${noconfigdirs} in
1337   *,objc,*:*:yes:*target-boehm-gc*)
1338     AC_MSG_ERROR([Boehm's garbage collector was requested yet not supported in this configuration])
1339     ;;
1340 esac])
1341
1342 # Make sure we only build Boehm's garbage collector if required.
1343 case ,${enable_languages},:${enable_objc_gc} in
1344   *,objc,*:yes)
1345     # Keep target-boehm-gc if requested for Objective-C.
1346     ;;
1347   *)
1348     # Otherwise remove target-boehm-gc depending on target-libjava.
1349     if echo " ${noconfigdirs} " | grep "target-libjava" >/dev/null 2>&1; then
1350       noconfigdirs="$noconfigdirs target-boehm-gc"
1351     fi
1352     ;;
1353 esac
1354
1355 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
1356 # $build_configdirs and $target_configdirs.
1357 # If we have the source for $noconfigdirs entries, add them to $notsupp.
1358
1359 notsupp=""
1360 for dir in . $skipdirs $noconfigdirs ; do
1361   dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
1362   if test $dir != .  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1363     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
1364     if test -r $srcdir/$dirname/configure ; then
1365       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1366         true
1367       else
1368         notsupp="$notsupp $dir"
1369       fi
1370     fi
1371   fi
1372   if test $dir != .  && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1373     build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
1374     if test -r $srcdir/$dirname/configure ; then
1375       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1376         true
1377       else
1378         notsupp="$notsupp $dir"
1379       fi
1380     fi
1381   fi
1382   if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1383     target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
1384     if test -r $srcdir/$dirname/configure ; then
1385       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1386         true
1387       else
1388         notsupp="$notsupp $dir"
1389       fi
1390     fi
1391   fi
1392 done
1393
1394 # Sometimes the tools are distributed with libiberty but with no other
1395 # libraries.  In that case, we don't want to build target-libiberty.
1396 if test -n "${target_configdirs}" ; then
1397   others=
1398   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
1399     if test "$i" != "libiberty" ; then
1400       if test -r $srcdir/$i/configure ; then
1401         others=yes;
1402         break;
1403       fi
1404     fi
1405   done
1406   if test -z "${others}" ; then
1407     target_configdirs=
1408   fi
1409 fi
1410
1411 # Quietly strip out all directories which aren't configurable in this tree.
1412 # This relies on all configurable subdirectories being autoconfiscated, which
1413 # is now the case.
1414 build_configdirs_all="$build_configdirs"
1415 build_configdirs=
1416 for i in ${build_configdirs_all} ; do
1417   j=`echo $i | sed -e s/build-//g`
1418   if test -f ${srcdir}/$j/configure ; then
1419     build_configdirs="${build_configdirs} $i"
1420   fi
1421 done
1422
1423 configdirs_all="$configdirs"
1424 configdirs=
1425 for i in ${configdirs_all} ; do
1426   if test -f ${srcdir}/$i/configure ; then
1427     configdirs="${configdirs} $i"
1428   fi
1429 done
1430
1431 target_configdirs_all="$target_configdirs"
1432 target_configdirs=
1433 for i in ${target_configdirs_all} ; do
1434   j=`echo $i | sed -e s/target-//g`
1435   if test -f ${srcdir}/$j/configure ; then
1436     target_configdirs="${target_configdirs} $i"
1437   fi
1438 done
1439
1440 # Produce a warning message for the subdirs we can't configure.
1441 # This isn't especially interesting in the Cygnus tree, but in the individual
1442 # FSF releases, it's important to let people know when their machine isn't
1443 # supported by the one or two programs in a package.
1444
1445 if test -n "${notsupp}" && test -z "${norecursion}" ; then
1446   # If $appdirs is non-empty, at least one of those directories must still
1447   # be configured, or we error out.  (E.g., if the gas release supports a
1448   # specified target in some subdirs but not the gas subdir, we shouldn't
1449   # pretend that all is well.)
1450   if test -n "$appdirs" ; then
1451     for dir in $appdirs ; do
1452       if test -r $dir/Makefile.in ; then
1453         if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1454           appdirs=""
1455           break
1456         fi
1457         if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
1458           appdirs=""
1459           break
1460         fi
1461       fi
1462     done
1463     if test -n "$appdirs" ; then
1464       echo "*** This configuration is not supported by this package." 1>&2
1465       exit 1
1466     fi
1467   fi
1468   # Okay, some application will build, or we don't care to check.  Still
1469   # notify of subdirs not getting built.
1470   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
1471   echo "    ${notsupp}" 1>&2
1472   echo "    (Any other directories should still work fine.)" 1>&2
1473 fi
1474
1475 case "$host" in
1476   *msdosdjgpp*)
1477     enable_gdbtk=no ;;
1478 esac
1479
1480 copy_dirs=
1481
1482 AC_ARG_WITH([build-sysroot],
1483   [  --with-build-sysroot=sysroot
1484                           use sysroot as the system root during the build],
1485   [if test x"$withval" != x ; then
1486      SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
1487    fi],
1488   [SYSROOT_CFLAGS_FOR_TARGET=])
1489 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
1490
1491 # Handle --with-headers=XXX.  If the value is not "yes", the contents of
1492 # the named directory are copied to $(tooldir)/sys-include.
1493 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
1494   if test x${is_cross_compiler} = xno ; then
1495     echo 1>&2 '***' --with-headers is only supported when cross compiling
1496     exit 1
1497   fi
1498   if test x"${with_headers}" != xyes ; then
1499     case "${exec_prefixoption}" in
1500     "") x=${prefix} ;;
1501     *) x=${exec_prefix} ;;
1502     esac
1503     copy_dirs="${copy_dirs} ${with_headers} $x/${target_alias}/sys-include"
1504   fi
1505 fi
1506
1507 # Handle --with-libs=XXX.  If the value is not "yes", the contents of
1508 # the name directories are copied to $(tooldir)/lib.  Multiple directories
1509 # are permitted.
1510 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
1511   if test x${is_cross_compiler} = xno ; then
1512     echo 1>&2 '***' --with-libs is only supported when cross compiling
1513     exit 1
1514   fi
1515   if test x"${with_libs}" != xyes ; then
1516     # Copy the libraries in reverse order, so that files in the first named
1517     # library override files in subsequent libraries.
1518     case "${exec_prefixoption}" in
1519     "") x=${prefix} ;;
1520     *) x=${exec_prefix} ;;
1521     esac
1522     for l in ${with_libs}; do
1523       copy_dirs="$l $x/${target_alias}/lib ${copy_dirs}"
1524     done
1525   fi
1526 fi
1527
1528 # Set with_gnu_as and with_gnu_ld as appropriate.
1529 #
1530 # This is done by determining whether or not the appropriate directory
1531 # is available, and by checking whether or not specific configurations
1532 # have requested that this magic not happen.
1533 #
1534 # The command line options always override the explicit settings in
1535 # configure.in, and the settings in configure.in override this magic.
1536 #
1537 # If the default for a toolchain is to use GNU as and ld, and you don't
1538 # want to do that, then you should use the --without-gnu-as and
1539 # --without-gnu-ld options for the configure script.
1540
1541 if test x${use_gnu_as} = x &&
1542    echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
1543   with_gnu_as=yes
1544   extra_host_args="$extra_host_args --with-gnu-as"
1545 fi
1546
1547 if test x${use_gnu_ld} = x &&
1548    echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 ; then
1549   with_gnu_ld=yes
1550   extra_host_args="$extra_host_args --with-gnu-ld"
1551 fi
1552
1553 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
1554 # can detect this case.
1555
1556 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
1557   with_newlib=yes
1558   extra_host_args="$extra_host_args --with-newlib"
1559 fi
1560
1561 # Handle ${copy_dirs}
1562 set fnord ${copy_dirs}
1563 shift
1564 while test $# != 0 ; do
1565   if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
1566     :
1567   else
1568     echo Copying $1 to $2
1569
1570     # Use the install script to create the directory and all required
1571     # parent directories.
1572     if test -d $2 ; then
1573       :
1574     else
1575       echo >config.temp
1576       ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
1577     fi
1578
1579     # Copy the directory, assuming we have tar.
1580     # FIXME: Should we use B in the second tar?  Not all systems support it.
1581     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
1582
1583     # It is the responsibility of the user to correctly adjust all
1584     # symlinks.  If somebody can figure out how to handle them correctly
1585     # here, feel free to add the code.
1586
1587     echo $1 > $2/COPIED
1588   fi
1589   shift; shift
1590 done
1591
1592 # Determine a target-dependent exec_prefix that the installed
1593 # gcc will search in.  Keep this list sorted by triplet, with
1594 # the *-*-osname triplets last.
1595 md_exec_prefix=
1596 case "${target}" in
1597   alpha*-*-*vms*)
1598     md_exec_prefix=/gnu/lib/gcc-lib
1599     ;;
1600   i[34567]86-pc-msdosdjgpp*)
1601     md_exec_prefix=/dev/env/DJDIR/bin
1602     ;;
1603   i[34567]86-*-sco3.2v5*)
1604     if test $with_gnu_as = yes; then
1605       md_exec_prefix=/usr/gnu/bin
1606     else
1607       md_exec_prefix=/usr/ccs/bin/elf
1608     fi
1609     ;;
1610
1611   mn10300-*-* | \
1612   powerpc-*-chorusos* | \
1613   powerpc*-*-eabi* | \
1614   powerpc*-*-sysv* | \
1615   powerpc*-*-kaos* | \
1616   s390x-ibm-tpf*)
1617     md_exec_prefix=/usr/ccs/bin
1618     ;;
1619   sparc64-*-elf*)
1620     ;;
1621   v850*-*-*)
1622     md_exec_prefix=/usr/ccs/bin
1623     ;;
1624   xtensa-*-elf*)
1625     ;;
1626
1627   *-*-beos* | \
1628   *-*-elf* | \
1629   *-*-hpux* | \
1630   *-*-netware* | \
1631   *-*-nto-qnx* | \
1632   *-*-rtems* | \
1633   *-*-solaris2* | \
1634   *-*-sysv[45]* | \
1635   *-*-vxworks* | \
1636   *-wrs-windiss)
1637     md_exec_prefix=/usr/ccs/bin
1638     ;;
1639 esac
1640
1641 extra_arflags_for_target=
1642 extra_nmflags_for_target=
1643 extra_ranlibflags_for_target=
1644 target_makefile_frag=/dev/null
1645 case "${target}" in
1646   spu-*-*)
1647     target_makefile_frag="config/mt-spu"
1648     ;;
1649   *-*-netware*)
1650     target_makefile_frag="config/mt-netware"
1651     ;;
1652   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
1653     target_makefile_frag="config/mt-gnu"
1654     ;;
1655   *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
1656     # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
1657     # commands to handle both 32-bit and 64-bit objects.  These flags are
1658     # harmless if we're using GNU nm or ar.
1659     extra_arflags_for_target=" -X32_64"
1660     extra_nmflags_for_target=" -B -X32_64"
1661     ;;
1662   *-*-darwin*)
1663     # ranlib from Darwin requires the -c flag to look at common symbols.
1664     extra_ranlibflags_for_target=" -c"
1665     ;;
1666   mips*-*-pe | sh*-*-pe | *arm-wince-pe)
1667     target_makefile_frag="config/mt-wince"
1668     ;;
1669 esac
1670
1671 alphaieee_frag=/dev/null
1672 case $target in
1673   alpha*-*-*)
1674     # This just makes sure to use the -mieee option to build target libs.
1675     # This should probably be set individually by each library.
1676     alphaieee_frag="config/mt-alphaieee"
1677     ;;
1678 esac
1679
1680 # If --enable-target-optspace always use -Os instead of -O2 to build
1681 # the target libraries, similarly if it is not specified, use -Os
1682 # on selected platforms.
1683 ospace_frag=/dev/null
1684 case "${enable_target_optspace}:${target}" in
1685   yes:*)
1686     ospace_frag="config/mt-ospace"
1687     ;;
1688   :d30v-*)
1689     ospace_frag="config/mt-d30v"
1690     ;;
1691   :m32r-* | :d10v-* | :fr30-*)
1692     ospace_frag="config/mt-ospace"
1693     ;;
1694   no:* | :*)
1695     ;;
1696   *)
1697     echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
1698     ;;
1699 esac
1700
1701 # Default to using --with-stabs for certain targets.
1702 if test x${with_stabs} = x ; then
1703   case "${target}" in
1704   mips*-*-irix[[56]]*)
1705     ;;
1706   mips*-*-* | alpha*-*-osf*)
1707     with_stabs=yes;
1708     extra_host_args="${extra_host_args} --with-stabs"
1709     ;;
1710   esac
1711 fi
1712
1713 # hpux11 in 64bit mode has libraries in a weird place.  Arrange to find
1714 # them automatically.
1715 case "${host}" in
1716   hppa*64*-*-hpux11*)
1717     extra_host_args="$extra_host_args -x-libraries=/usr/lib/pa20_64 -x-includes=/usr/X11R6/include"
1718     ;;
1719 esac
1720
1721 # Some systems (e.g., one of the i386-aix systems the gas testers are
1722 # using) don't handle "\$" correctly, so don't use it here.
1723 tooldir='${exec_prefix}'/${target_alias}
1724 build_tooldir=${tooldir}
1725
1726 # Create a .gdbinit file which runs the one in srcdir
1727 # and tells GDB to look there for source files.
1728
1729 if test -r ${srcdir}/.gdbinit ; then
1730   case ${srcdir} in
1731     .) ;;
1732     *) cat > ./.gdbinit <<EOF
1733 # ${NO_EDIT}
1734 dir ${srcdir}
1735 dir .
1736 source ${srcdir}/.gdbinit
1737 EOF
1738     ;;
1739   esac
1740 fi
1741
1742 # Make sure that the compiler is able to generate an executable.  If it
1743 # can't, we are probably in trouble.  We don't care whether we can run the
1744 # executable--we might be using a cross compiler--we only care whether it
1745 # can be created.  At this point the main configure script has set CC.
1746 we_are_ok=no
1747 echo "int main () { return 0; }" > conftest.c
1748 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
1749 if test $? = 0 ; then
1750   if test -s conftest || test -s conftest.exe ; then
1751     we_are_ok=yes
1752   fi
1753 fi
1754 case $we_are_ok in
1755   no)
1756     echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
1757     echo 1>&2 "*** You must set the environment variable CC to a working compiler."
1758     rm -f conftest*
1759     exit 1
1760     ;;
1761 esac
1762 rm -f conftest*
1763
1764 # The Solaris /usr/ucb/cc compiler does not appear to work.
1765 case "${host}" in
1766   sparc-sun-solaris2*)
1767       CCBASE="`echo ${CC-cc} | sed 's/ .*$//'`"
1768       if test "`type $CCBASE | sed 's/^[[^/]]*//'`" = "/usr/ucb/cc" ; then
1769           could_use=
1770           test -d /opt/SUNWspro/bin && could_use="/opt/SUNWspro/bin"
1771           if test -d /opt/cygnus/bin ; then
1772               if test "$could_use" = "" ; then
1773                   could_use="/opt/cygnus/bin"
1774               else
1775                   could_use="$could_use or /opt/cygnus/bin"
1776               fi
1777           fi
1778         if test "$could_use" = "" ; then
1779             echo "Warning: compilation may fail because you're using"
1780             echo "/usr/ucb/cc.  You should change your PATH or CC "
1781             echo "variable and rerun configure."
1782         else
1783             echo "Warning: compilation may fail because you're using"
1784             echo "/usr/ucb/cc, when you should use the C compiler from"
1785             echo "$could_use.  You should change your"
1786             echo "PATH or CC variable and rerun configure."
1787         fi
1788       fi
1789   ;;
1790 esac
1791
1792 case "${host}" in
1793   *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
1794   *-*-darwin* | *-*-rhapsody* ) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
1795   *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
1796 esac
1797
1798 # Record target_configdirs and the configure arguments for target and
1799 # build configuration in Makefile.
1800 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
1801 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
1802
1803 # Determine whether gdb needs tk/tcl or not.
1804 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
1805 # and in that case we want gdb to be built without tk.  Ugh!
1806 # In fact I believe gdb is the *only* package directly dependent on tk,
1807 # so we should be able to put the 'maybe's in unconditionally and
1808 # leave out the maybe dependencies when enable_gdbtk is false.  I'm not
1809 # 100% sure that that's safe though.
1810
1811 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
1812 case "$enable_gdbtk" in
1813   no)
1814     GDB_TK="" ;;
1815   yes)
1816     GDB_TK="${gdb_tk}" ;;
1817   *)
1818     # Only add the dependency on gdbtk when GDBtk is part of the gdb
1819     # distro.  Eventually someone will fix this and move Insight, nee
1820     # gdbtk to a separate directory.
1821     if test -d ${srcdir}/gdb/gdbtk ; then
1822       GDB_TK="${gdb_tk}"
1823     else
1824       GDB_TK=""
1825     fi
1826     ;;
1827 esac
1828 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
1829 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
1830
1831 # Strip out unwanted targets.
1832
1833 # While at that, we remove Makefiles if we were started for recursive
1834 # configuration, so that the top-level Makefile reconfigures them,
1835 # like we used to do when configure itself was recursive.
1836
1837 # Loop over modules.  $extrasub must be used with care, limiting as
1838 # much as possible the usage of range addresses.  That's because autoconf
1839 # splits the sed script to overcome limits in the number of commands,
1840 # and relying on carefully-timed sed passes may turn out to be very hard
1841 # to maintain later.  In this particular case, you just have to be careful
1842 # not to nest @if/@endif pairs, because configure will not warn you at all.
1843
1844 AC_ARG_ENABLE([bootstrap],
1845 [  --enable-bootstrap           Enable bootstrapping [yes if native build]],,
1846 enable_bootstrap=default)
1847
1848 # Issue errors and warnings for invalid/strange bootstrap combinations.
1849 case "$configdirs" in
1850   *gcc*) have_compiler=yes ;;
1851   *) have_compiler=no ;;
1852 esac
1853
1854 case "$have_compiler:$host:$target:$enable_bootstrap" in
1855   *:*:*:no) ;;
1856
1857   # Default behavior.  Enable bootstrap if we have a compiler
1858   # and we are in a native configuration.
1859   yes:$build:$build:default)
1860     enable_bootstrap=yes ;;
1861
1862   *:*:*:default)
1863     enable_bootstrap=no ;;
1864
1865   # We have a compiler and we are in a native configuration, bootstrap is ok
1866   yes:$build:$build:yes)
1867     ;;
1868
1869   # Other configurations, but we have a compiler.  Assume the user knows
1870   # what he's doing.
1871   yes:*:*:yes)
1872     AC_MSG_WARN([trying to bootstrap a cross compiler])
1873     ;;
1874
1875   # No compiler: if they passed --enable-bootstrap explicitly, fail
1876   no:*:*:yes)
1877     AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1878
1879   # Fail if wrong command line
1880   *)
1881     AC_MSG_ERROR([invalid option for --enable-bootstrap])
1882     ;;
1883 esac
1884
1885 # Adjust the toplevel makefile according to whether bootstrap was selected.
1886 case "$enable_bootstrap" in
1887   yes)
1888     bootstrap_suffix=bootstrap ;;
1889   no)
1890     bootstrap_suffix=no-bootstrap ;;
1891 esac
1892
1893 for module in ${build_configdirs} ; do
1894   if test -z "${no_recursion}" \
1895      && test -f ${build_subdir}/${module}/Makefile; then
1896     echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
1897     rm -f ${build_subdir}/${module}/Makefile
1898   fi
1899   extrasub="$extrasub
1900 /^@if build-$module\$/d
1901 /^@endif build-$module\$/d
1902 /^@if build-$module-$bootstrap_suffix\$/d
1903 /^@endif build-$module-$bootstrap_suffix\$/d"
1904 done
1905 for module in ${configdirs} ; do
1906   if test -z "${no_recursion}"; then
1907     for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
1908       if test -f ${file}; then
1909         echo 1>&2 "*** removing ${file} to force reconfigure"
1910         rm -f ${file}
1911       fi
1912     done
1913   fi
1914   extrasub="$extrasub
1915 /^@if $module\$/d
1916 /^@endif $module\$/d
1917 /^@if $module-$bootstrap_suffix\$/d
1918 /^@endif $module-$bootstrap_suffix\$/d"
1919 done
1920 for module in ${target_configdirs} ; do
1921   if test -z "${no_recursion}" \
1922      && test -f ${target_subdir}/${module}/Makefile; then
1923     echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
1924     rm -f ${target_subdir}/${module}/Makefile
1925   fi
1926   extrasub="$extrasub
1927 /^@if target-$module\$/d
1928 /^@endif target-$module\$/d
1929 /^@if target-$module-$bootstrap_suffix\$/d
1930 /^@endif target-$module-$bootstrap_suffix\$/d"
1931 done
1932
1933 extrasub="$extrasub
1934 /^@if /,/^@endif /d"
1935
1936 # Create the serialization dependencies.  This uses a temporary file.
1937
1938 AC_ARG_ENABLE([serial-configure],
1939 [  --enable-serial-[{host,target,build}-]configure
1940                           Force sequential configuration of
1941                           sub-packages for the host, target or build
1942                           machine, or all sub-packages])
1943
1944 case ${enable_serial_configure} in
1945   yes)
1946     enable_serial_build_configure=yes
1947     enable_serial_host_configure=yes
1948     enable_serial_target_configure=yes
1949     ;;
1950 esac
1951
1952 # These force 'configure's to be done one at a time, to avoid problems
1953 # with contention over a shared config.cache.
1954 rm -f serdep.tmp
1955 echo '# serdep.tmp' > serdep.tmp
1956 olditem=
1957 test "x${enable_serial_build_configure}" = xyes &&
1958 for item in ${build_configdirs} ; do
1959   case ${olditem} in
1960     "") ;;
1961     *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
1962   esac
1963   olditem=${item}
1964 done
1965 olditem=
1966 test "x${enable_serial_host_configure}" = xyes &&
1967 for item in ${configdirs} ; do
1968   case ${olditem} in
1969     "") ;;
1970     *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
1971   esac
1972   olditem=${item}
1973 done
1974 olditem=
1975 test "x${enable_serial_target_configure}" = xyes &&
1976 for item in ${target_configdirs} ; do
1977   case ${olditem} in
1978     "") ;;
1979     *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
1980   esac
1981   olditem=${item}
1982 done
1983 serialization_dependencies=serdep.tmp
1984 AC_SUBST_FILE(serialization_dependencies)
1985
1986 # Base args.  Strip norecursion, cache-file, srcdir, host, build,
1987 # target and nonopt.  These are the ones we might not want to pass
1988 # down to subconfigures.  Also strip program-prefix, program-suffix,
1989 # and program-transform-name, so that we can pass down a consistent
1990 # program-transform-name.  If autoconf has put single quotes around
1991 # any of these arguments (because they contain shell metacharacters)
1992 # then this will fail; in practice this only happens for
1993 # --program-transform-name, so be sure to override --program-transform-name
1994 # at the end of the argument list.
1995 # These will be expanded by make, so quote '$'.
1996 cat <<\EOF_SED > conftestsed
1997 s/ --no[[^ ]]*/ /g
1998 s/ --c[[a-z-]]*[[= ]][[^ ]]*//g
1999 s/ --sr[[a-z-]]*[[= ]][[^ ]]*//g
2000 s/ --ho[[a-z-]]*[[= ]][[^ ]]*//g
2001 s/ --bu[[a-z-]]*[[= ]][[^ ]]*//g
2002 s/ --t[[a-z-]]*[[= ]][[^ ]]*//g
2003 s/ --program-[[pst]][[a-z-]]*[[= ]][[^ ]]*//g
2004 s/ -cache-file[[= ]][[^ ]]*//g
2005 s/ -srcdir[[= ]][[^ ]]*//g
2006 s/ -host[[= ]][[^ ]]*//g
2007 s/ -build[[= ]][[^ ]]*//g
2008 s/ -target[[= ]][[^ ]]*//g
2009 s/ -program-prefix[[= ]][[^ ]]*//g
2010 s/ -program-suffix[[= ]][[^ ]]*//g
2011 s/ -program-transform-name[[= ]][[^ ]]*//g
2012 s/ [[^' -][^ ]*] / /
2013 s/^ *//;s/ *$//
2014 s,\$,$$,g
2015 EOF_SED
2016 sed -f conftestsed <<EOF_SED > conftestsed.out
2017  ${ac_configure_args}
2018 EOF_SED
2019 baseargs=`cat conftestsed.out`
2020 rm -f conftestsed conftestsed.out
2021
2022 # Add in --program-transform-name, after --program-prefix and
2023 # --program-suffix have been applied to it.  Autoconf has already
2024 # doubled dollar signs and backslashes in program_transform_name; we want
2025 # the backslashes un-doubled, and then the entire thing wrapped in single
2026 # quotes, because this will be expanded first by make and then by the shell.
2027 # Also, because we want to override the logic in subdir configure scripts to
2028 # choose program_transform_name, replace any s,x,x, with s,y,y,.
2029 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
2030 ${program_transform_name}
2031 EOF_SED
2032 gcc_transform_name=`cat conftestsed.out`
2033 rm -f conftestsed.out
2034 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
2035
2036 # For the build-side libraries, we just need to pretend we're native,
2037 # and not use the same cache file.  Multilibs are neither needed nor
2038 # desired.
2039 build_configargs="--cache-file=../config.cache --build=${build_alias} --host=${build_alias} --target=${target_alias} ${baseargs}"
2040
2041 # For host modules, accept cache file option, or specification as blank.
2042 case "${cache_file}" in
2043 "") # empty
2044   cache_file_option="" ;;
2045 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
2046   cache_file_option="--cache-file=${cache_file}" ;;
2047 *) # relative path
2048   cache_file_option="--cache-file=../${cache_file}" ;;
2049 esac
2050
2051 # Host dirs don't like to share a cache file either, horribly enough.
2052 # This seems to be due to autoconf 2.5x stupidity.
2053 host_configargs="--cache-file=./config.cache --build=${build_alias} --host=${host_alias} --target=${target_alias} ${extra_host_args} ${baseargs}"
2054
2055 target_configargs=${baseargs}
2056
2057 # Passing a --with-cross-host argument lets the target libraries know
2058 # whether they are being built with a cross-compiler or being built
2059 # native.  However, it would be better to use other mechanisms to make the
2060 # sorts of decisions they want to make on this basis.  Please consider
2061 # this option to be deprecated.  FIXME.
2062 if test x${is_cross_compiler} = xyes ; then
2063   target_configargs="--with-cross-host=${host_alias} ${target_configargs}"
2064 fi
2065
2066 # Default to --enable-multilib.
2067 if test x${enable_multilib} = x ; then
2068   target_configargs="--enable-multilib ${target_configargs}"
2069 fi
2070
2071 # Pass --with-newlib if appropriate.  Note that target_configdirs has
2072 # changed from the earlier setting of with_newlib.
2073 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
2074   target_configargs="--with-newlib ${target_configargs}"
2075 fi
2076
2077 # Different target subdirs use different values of certain variables
2078 # (notably CXX).  Worse, multilibs use *lots* of different values.
2079 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
2080 # it doesn't automatically accept command-line overrides of them.
2081 # This means it's not safe for target subdirs to share a cache file,
2082 # which is disgusting, but there you have it.  Hopefully this can be
2083 # fixed in future.  It's still worthwhile to use a cache file for each
2084 # directory.  I think.
2085
2086 # Pass the appropriate --build, --host, --target and --cache-file arguments.
2087 # We need to pass --target, as newer autoconf's requires consistency
2088 # for target_alias and gcc doesn't manage it consistently.
2089 target_configargs="--cache-file=./config.cache --build=${build_alias} --host=${target_alias} --target=${target_alias} ${target_configargs}"
2090
2091 FLAGS_FOR_TARGET=
2092 case " $target_configdirs " in
2093  *" newlib "*)
2094   case " $target_configargs " in
2095   *" --with-newlib "*)
2096    case "$target" in
2097    *-cygwin*)
2098      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' ;;
2099    esac
2100
2101    # If we're not building GCC, don't discard standard headers.
2102    if test -d ${srcdir}/gcc; then
2103      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
2104
2105      if test "${build}" != "${host}"; then
2106        # On Canadian crosses, CC_FOR_TARGET will have already been set
2107        # by `configure', so we won't have an opportunity to add -Bgcc/
2108        # to it.  This is right: we don't want to search that directory
2109        # for binaries, but we want the header files in there, so add
2110        # them explicitly.
2111        FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include'
2112
2113        # Someone might think of using the pre-installed headers on
2114        # Canadian crosses, in case the installed compiler is not fully
2115        # compatible with the compiler being built.  In this case, it
2116        # would be better to flag an error than risking having
2117        # incompatible object files being constructed.  We can't
2118        # guarantee that an error will be flagged, but let's hope the
2119        # compiler will do it, when presented with incompatible header
2120        # files.
2121      fi
2122    fi
2123
2124    case "${target}-${is_cross_compiler}" in
2125    i[[3456789]]86-*-linux*-no)
2126       # Here host == target, so we don't need to build gcc,
2127       # so we don't want to discard standard headers.
2128       FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
2129       ;;
2130    *)
2131       # If we're building newlib, use its generic headers last, but search
2132       # for any libc-related directories first (so make it the last -B
2133       # switch).
2134       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
2135       ;;
2136    esac
2137    ;;
2138   esac
2139   ;;
2140 esac
2141 case "$target" in
2142 *-mingw*)
2143   # Can't be handled as Cygwin above since Mingw does not use newlib.
2144   FLAGS_FOR_TARGET=$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' ;;
2145 esac
2146
2147 # Allow the user to override the flags for
2148 # our build compiler if desired.
2149 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
2150
2151 # On Canadian crosses, we'll be searching the right directories for
2152 # the previously-installed cross compiler, so don't bother to add
2153 # flags for directories within the install tree of the compiler
2154 # being built; programs in there won't even run.
2155 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
2156   # Search for pre-installed headers if nothing else fits.
2157   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
2158 fi
2159
2160 if test "x${use_gnu_ld}" = x &&
2161    echo " ${configdirs} " | grep " ld " > /dev/null ; then
2162   # Arrange for us to find uninstalled linker scripts.
2163   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
2164 fi
2165
2166 # Search for other target-specific linker scripts and such.
2167 case "${target}" in
2168   m32c-*-* )
2169     if test -d ${srcdir}/libgloss/m32c; then
2170       # This is for crt0.o
2171       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/m32c'
2172       # This is for r8c.ld
2173       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/m32c'
2174       # This is for libnosys.a
2175       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
2176     fi
2177     ;;
2178 esac
2179
2180 # Makefile fragments.
2181 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
2182 do
2183   eval fragval=\$$frag
2184   if test $fragval != /dev/null; then
2185     eval $frag=${srcdir}/$fragval
2186   fi
2187 done
2188 AC_SUBST_FILE(host_makefile_frag)
2189 AC_SUBST_FILE(target_makefile_frag)
2190 AC_SUBST_FILE(alphaieee_frag)
2191 AC_SUBST_FILE(ospace_frag)
2192
2193 # Miscellanea: directories, flags, etc.
2194 AC_SUBST(RPATH_ENVVAR)
2195 AC_SUBST(tooldir)
2196 AC_SUBST(build_tooldir)
2197 AC_SUBST(CONFIGURE_GDB_TK)
2198 AC_SUBST(GDB_TK)
2199 AC_SUBST(INSTALL_GDB_TK)
2200
2201 # Build module lists & subconfigure args.
2202 AC_SUBST(build_configargs)
2203 AC_SUBST(build_configdirs)
2204
2205 # Host module lists & subconfigure args.
2206 AC_SUBST(host_configargs)
2207 AC_SUBST(configdirs)
2208
2209 # Target module lists & subconfigure args.
2210 AC_SUBST(target_configargs)
2211
2212
2213 # Build tools.
2214 AC_SUBST(CC_FOR_BUILD)
2215 AC_SUBST(config_shell)
2216
2217 # Generate default definitions for YACC, M4, LEX and other programs that run
2218 # on the build machine.  These are used if the Makefile can't locate these
2219 # programs in objdir.
2220 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
2221
2222 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
2223 case " $build_configdirs " in
2224   *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
2225   *" byacc "*) YACC='$$r/$(BUILD_SUBDIR)/byacc/byacc' ;;
2226 esac
2227
2228 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
2229 case " $build_configdirs " in
2230   *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
2231 esac
2232
2233 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
2234 case " $build_configdirs " in
2235   *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
2236 esac
2237
2238 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
2239 case " $build_configdirs " in
2240   *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
2241   *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
2242 esac
2243
2244 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
2245 case " $build_configdirs " in
2246   *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
2247 esac
2248
2249 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
2250 case " $build_configdirs " in
2251   *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
2252   *)
2253 changequote(,)
2254     # For an installed makeinfo, we require it to be from texinfo 4.4 or
2255     # higher, else we use the "missing" dummy.
2256     if ${MAKEINFO} --version \
2257        | egrep 'texinfo[^0-9]*([1-3][0-9]|4\.[4-9]|[5-9])' >/dev/null 2>&1; then
2258       :
2259     else
2260       MAKEINFO="$MISSING makeinfo"
2261     fi
2262     ;;
2263 changequote([,])
2264 esac
2265
2266 # FIXME: expect and dejagnu may become build tools?
2267
2268 AC_CHECK_PROGS(EXPECT, expect, expect)
2269 case " $configdirs " in
2270   *" expect "*)
2271     test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
2272     ;;
2273 esac
2274
2275 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
2276 case " $configdirs " in
2277   *" dejagnu "*)
2278     test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
2279     ;;
2280 esac
2281
2282
2283 # Host tools.
2284 NCN_STRICT_CHECK_TOOLS(AR, ar)
2285 NCN_STRICT_CHECK_TOOLS(AS, as)
2286 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
2287 NCN_STRICT_CHECK_TOOLS(LD, ld)
2288 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
2289 NCN_STRICT_CHECK_TOOLS(NM, nm)
2290 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, :)
2291 NCN_STRICT_CHECK_TOOLS(STRIP, strip, :)
2292 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
2293 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
2294 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
2295 AC_SUBST(CC)
2296 AC_SUBST(CXX)
2297 AC_SUBST(CFLAGS)
2298 AC_SUBST(CFLAGS_FOR_BUILD)
2299 AC_SUBST(CXXFLAGS)
2300
2301 # Target tools.
2302 AC_ARG_WITH([build-time-tools],
2303   [  --with-build-time-tools=path
2304                           use given path to find target tools during the build],
2305   [case x"$withval" in
2306      x/*) ;;
2307      *)
2308        with_build_time_tools=
2309        AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
2310        ;;
2311    esac],
2312   [with_build_time_tools=])
2313
2314 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
2315 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
2316 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
2317 NCN_STRICT_CHECK_TARGET_TOOLS(GCJ_FOR_TARGET, gcj)
2318 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
2319
2320 ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
2321 ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
2322 ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
2323 ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
2324 ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
2325 ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
2326 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
2327 ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib, :)
2328 ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
2329 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
2330
2331 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
2332
2333 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
2334 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
2335 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2336 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
2337                 [gcc/g++ -B$$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],
2338                 c++)
2339 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
2340                 [gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs],
2341                 c++)
2342 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
2343 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2344 GCC_TARGET_TOOL(gcj, GCJ_FOR_TARGET, GCJ,
2345                 [gcc/gcj -B$$r/$(HOST_SUBDIR)/gcc/], java)
2346 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
2347                 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
2348 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
2349 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
2350 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
2351 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
2352 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
2353 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip])
2354 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
2355
2356 AC_SUBST(FLAGS_FOR_TARGET)
2357 AC_SUBST(RAW_CXX_FOR_TARGET)
2358
2359 # Certain tools may need extra flags.
2360 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
2361 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
2362 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
2363
2364 # When building target libraries, except in a Canadian cross, we use
2365 # the same toolchain as the compiler we just built.
2366 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
2367 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
2368 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
2369 if test $host = $build; then
2370   case " $configdirs " in
2371     *" gcc "*)
2372       COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
2373       COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
2374       COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
2375       ;;
2376   esac
2377 fi
2378
2379 AC_SUBST(COMPILER_AS_FOR_TARGET)
2380 AC_SUBST(COMPILER_LD_FOR_TARGET)
2381 AC_SUBST(COMPILER_NM_FOR_TARGET)
2382
2383 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2384 AC_ARG_ENABLE(maintainer-mode,
2385 [  --enable-maintainer-mode enable make rules and dependencies not useful
2386                           (and sometimes confusing) to the casual installer],
2387       USE_MAINTAINER_MODE=$enableval,
2388       USE_MAINTAINER_MODE=no)
2389 AC_MSG_RESULT($USE_MAINTAINER_MODE)
2390 AC_SUBST(MAINTAINER_MODE_TRUE)
2391 AC_SUBST(MAINTAINER_MODE_FALSE)
2392 if test "$USE_MAINTAINER_MODE" = yes; then
2393   MAINTAINER_MODE_TRUE=
2394   MAINTAINER_MODE_FALSE='#'
2395 else
2396   MAINTAINER_MODE_TRUE='#'
2397   MAINTAINER_MODE_FALSE=
2398 fi
2399 MAINT=$MAINTAINER_MODE_TRUE
2400 AC_SUBST(MAINT)dnl
2401
2402 # ---------------------
2403 # GCC bootstrap support
2404 # ---------------------
2405
2406 # Stage specific cflags for build.
2407 stage1_cflags="-g"
2408 case $build in
2409   vax-*-*)
2410     case ${GCC} in
2411       yes) stage1_cflags="-g -Wa,-J" ;;
2412       *) stage1_cflags="-g -J" ;;
2413     esac ;;
2414 esac
2415
2416 # This is aimed to mimic bootstrap with a non-GCC compiler to catch problems.
2417 if test "$GCC" = yes; then
2418   saved_CFLAGS="$CFLAGS"
2419
2420   # Pass -fkeep-inline-functions for stage 1 if the GCC version supports it.
2421   CFLAGS="$CFLAGS -fkeep-inline-functions"
2422   AC_MSG_CHECKING([whether -fkeep-inline-functions is supported])
2423   AC_TRY_COMPILE(,,
2424     [AC_MSG_RESULT([yes]); stage1_cflags="$stage1_cflags -fkeep-inline-functions"],
2425     [AC_MSG_RESULT([no])])
2426
2427   CFLAGS="$saved_CFLAGS"
2428 fi
2429
2430 AC_SUBST(stage1_cflags)
2431
2432 # Enable --enable-checking in stage1 of the compiler.
2433 AC_ARG_ENABLE(stage1-checking,
2434 [  --enable-stage1-checking[=all]   choose additional checking for stage1
2435                           of the compiler.],
2436 [stage1_checking=--enable-checking=${enable_stage1_checking}],
2437 [if test "x$enable_checking" = xno; then
2438   stage1_checking=--enable-checking
2439 else
2440   stage1_checking=--enable-checking${enable_checking+=}$enable_checking
2441 fi])
2442 AC_SUBST(stage1_checking)
2443
2444 # Enable -Werror in bootstrap stage2 and later.
2445 # Change the default to "no" on release branches.
2446 AC_ARG_ENABLE(werror,
2447 [  --enable-werror         enable -Werror in bootstrap stage2 and later], [],
2448 [enable_werror=yes])
2449 case ${enable_werror} in
2450   yes) stage2_werror_flag="--enable-werror-always" ;;
2451   *) stage2_werror_flag="" ;;
2452 esac
2453 AC_SUBST(stage2_werror_flag)
2454
2455 # Flags needed to enable html installing and building
2456 AC_ARG_WITH(datarootdir,
2457 [  --with-datarootdir   Use datarootdir as the data root directory.],
2458 [datarootdir="\${prefix}/${withval}"],
2459 [datarootdir="\${prefix}/share"])
2460
2461 AC_ARG_WITH(docdir,
2462 [  --with-docdir        Install documentation in this directory.],
2463 [docdir="\${prefix}/${withval}"],
2464 [docdir="\${datarootdir}/doc"])
2465
2466 AC_ARG_WITH(htmldir,
2467 [  --with-htmldir       Install html in this directory.],
2468 [htmldir="\${prefix}/${withval}"],
2469 [htmldir="\${docdir}"])
2470
2471 AC_SUBST(datarootdir)
2472 AC_SUBST(docdir)
2473 AC_SUBST(htmldir)
2474
2475 AC_OUTPUT(Makefile)