configure.in

   1 #   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998,
   2 #   1999, 2000, 2001, 2002, 2003, 2004 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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"
 127
 128 # these tools are built for the host environment
 129 # Note, the powerpc-eabi build depends on sim occurring before gdb in order to
 130 # know that we are building the simulator.
 131 # binutils, gas and ld appear in that order because it makes sense to run
 132 # "make check" in that particular order.
 133 host_tools="texinfo byacc flex bison binutils gas ld fixincludes gcc sid sim gdb make patch prms send-pr gprof etc expect dejagnu ash bash bzip2 m4 autoconf automake libtool diff rcs fileutils shellutils time textutils wdiff find uudecode hello tar gzip indent recode release sed utils guile perl gawk findutils gettext zip fastjar gnattools"
 134
 135 # libgcj represents the runtime libraries only used by gcj.
 136 libgcj="target-libffi \
 137         target-boehm-gc \
 138         target-zlib \
 139         target-qthreads \
 140         target-libjava"
 141
 142 # these libraries are built for the target environment, and are built after
 143 # the host libraries and the host tools (which may be a cross compiler)
 144 #
 145 target_libraries="target-libiberty \
 146                 target-libgloss \
 147                 target-newlib \
 148                 target-libstdc++-v3 \
 149                 target-libmudflap \
 150                 target-libgfortran \
 151                 ${libgcj} \
 152                 target-libobjc \
 153                 target-libada"
 154
 155 # these tools are built using the target libraries, and are intended to
 156 # run only in the target environment
 157 #
 158 # note: any program that *uses* libraries that are in the "target_libraries"
 159 # list belongs in this list.  those programs are also very likely
 160 # candidates for the "native_only" list which follows
 161 #
 162 target_tools="target-examples target-groff target-gperf target-rda"
 163
 164 ################################################################################
 165
 166 ## All tools belong in one of the four categories, and are assigned above
 167 ## We assign ${configdirs} this way to remove all embedded newlines.  This
 168 ## is important because configure will choke if they ever get through.
 169 ## ${configdirs} is directories we build using the host tools.
 170 ## ${target_configdirs} is directories we build using the target tools.
 171 configdirs=`echo ${host_libs} ${host_tools}`
 172 target_configdirs=`echo ${target_libraries} ${target_tools}`
 173 build_configdirs=`echo ${build_libs} ${build_tools}`
 174
 175 ################################################################################
 176
 177 srcname="gnu development package"
 178
 179 # This gets set non-empty for some net releases of packages.
 180 appdirs=""
 181
 182 # Define is_cross_compiler to save on calls to 'test'.
 183 is_cross_compiler=
 184 if test x"${host}" = x"${target}" ; then
 185   is_cross_compiler=no
 186 else
 187   is_cross_compiler=yes
 188 fi
 189
 190 # Find the build and target subdir names.
 191 GCC_TOPLEV_SUBDIRS
 192
 193 # Skipdirs are removed silently.
 194 skipdirs=
 195 # Noconfigdirs are removed loudly.
 196 noconfigdirs=""
 197
 198 use_gnu_ld=
 199 # Make sure we don't let GNU ld be added if we didn't want it.
 200 if test x$with_gnu_ld = xno ; then
 201   use_gnu_ld=no
 202   noconfigdirs="$noconfigdirs ld"
 203 fi
 204
 205 use_gnu_as=
 206 # Make sure we don't let GNU as be added if we didn't want it.
 207 if test x$with_gnu_as = xno ; then
 208   use_gnu_as=no
 209   noconfigdirs="$noconfigdirs gas"
 210 fi
 211
 212 # some tools are so dependent upon X11 that if we're not building with X,
 213 # it's not even worth trying to configure, much less build, that tool.
 214
 215 case ${with_x} in
 216   yes | "") ;; # the default value for this tree is that X11 is available
 217   no)
 218     skipdirs="${skipdirs} tk itcl libgui"
 219     # We won't be able to build gdbtk without X.
 220     enable_gdbtk=no
 221     ;;
 222   *)  echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
 223 esac
 224
 225 # Some tools are only suitable for building in a "native" situation.
 226 # Remove these if host!=target.
 227 native_only="autoconf automake libtool fileutils find gawk gettext gzip hello indent m4 rcs recode sed shellutils tar textutils uudecode wdiff gprof target-groff guile perl time ash bash bzip2 prms gnuserv target-gperf"
 228
 229 # Similarly, some are only suitable for cross toolchains.
 230 # Remove these if host=target.
 231 cross_only="target-libgloss target-newlib target-opcodes"
 232
 233 case $is_cross_compiler in
 234   no) skipdirs="${skipdirs} ${cross_only}" ;;
 235   yes) skipdirs="${skipdirs} ${native_only}" ;;
 236 esac
 237
 238 # If both --with-headers and --with-libs are specified, default to
 239 # --without-newlib.
 240 if test x"${with_headers}" != x && test x"${with_headers}" != xno \
 241    && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
 242   if test x"${with_newlib}" = x ; then
 243     with_newlib=no
 244   fi
 245 fi
 246
 247 # Recognize --with-newlib/--without-newlib.
 248 case ${with_newlib} in
 249   no) skipdirs="${skipdirs} target-newlib" ;;
 250   yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
 251 esac
 252
 253 # Configure extra directories which are host specific
 254
 255 case "${host}" in
 256   *-cygwin*)
 257     configdirs="$configdirs libtermcap" ;;
 258 esac
 259
 260 # Remove more programs from consideration, based on the host or
 261 # target this usually means that a port of the program doesn't
 262 # exist yet.
 263
 264 case "${host}" in
 265   hppa*64*-*-*)
 266     noconfigdirs="$noconfigdirs byacc"
 267     ;;
 268   i[[3456789]]86-*-vsta)
 269     noconfigdirs="$noconfigdirs tcl expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff guile perl itcl gnuserv gettext"
 270     ;;
 271   i[[3456789]]86-*-go32* | i[[3456789]]86-*-msdosdjgpp*)
 272     noconfigdirs="$noconfigdirs tcl tk expect dejagnu send-pr uudecode guile itcl gnuserv libffi"
 273     ;;
 274   i[[3456789]]86-*-mingw32*)
 275     # noconfigdirs="tcl tk expect dejagnu make texinfo bison patch flex byacc send-pr uudecode dejagnu diff guile perl itcl gnuserv"
 276     noconfigdirs="$noconfigdirs expect dejagnu autoconf automake send-pr rcs guile perl texinfo libtool"
 277     ;;
 278   i[[3456789]]86-*-beos*)
 279     noconfigdirs="$noconfigdirs tk itcl libgui gdb"
 280     ;;
 281   *-*-cygwin*)
 282     noconfigdirs="$noconfigdirs autoconf automake send-pr rcs guile perl"
 283     ;;
 284   *-*-netbsd*)
 285     noconfigdirs="$noconfigdirs rcs"
 286     ;;
 287   ppc*-*-pe)
 288     noconfigdirs="$noconfigdirs patch diff make tk tcl expect dejagnu autoconf automake texinfo bison send-pr gprof rcs guile perl itcl gnuserv"
 289     ;;
 290   powerpc-*-beos*)
 291     noconfigdirs="$noconfigdirs tk itcl libgui gdb dejagnu readline"
 292     ;;
 293 esac
 294
 295
 296 AC_ARG_ENABLE(libada,
 297 [  --enable-libada        Builds libada directory],
 298 ENABLE_LIBADA=$enableval,
 299 ENABLE_LIBADA=yes)
 300 if test "${ENABLE_LIBADA}" != "yes" ; then
 301   noconfigdirs="$noconfigdirs target-libada"
 302   noconfigdirs="$noconfigdirs gnattools"
 303 fi
 304
 305 # Save it here so that, even in case of --enable-libgcj, if the Java
 306 # front-end isn't enabled, we still get libgcj disabled.
 307 libgcj_saved=$libgcj
 308 case $enable_libgcj in
 309 yes)
 310   # If we reset it here, it won't get added to noconfigdirs in the
 311   # target-specific build rules, so it will be forcibly enabled
 312   # (unless the Java language itself isn't enabled).
 313   libgcj=
 314   ;;
 315 no)
 316   # Make sure we get it printed in the list of not supported target libs.
 317   noconfigdirs="$noconfigdirs ${libgcj}"
 318   ;;
 319 esac
 320
 321
 322 # Allow --disable-libmudflap to exclude target-libmudflap
 323 case $enable_libmudflap in
 324 yes)
 325     ;;
 326 no)
 327     noconfigdirs="$noconfigdirs target-libmudflap"
 328     ;;
 329 "")
 330     case "${target}" in
 331     *-*-linux*-gnu | *-*-gnu* | *-*-k*bsd*-gnu)
 332         # Enable libmudflap by default in GNU and friends.
 333         ;;
 334     *-*-freebsd*)
 335         # Enable libmudflap by default in FreeBSD.
 336         ;;
 337     *)
 338         # Disable it by default everywhere else.
 339         noconfigdirs="$noconfigdirs target-libmudflap"
 340         ;;
 341     esac
 342 esac
 343
 344
 345 case "${target}" in
 346   *-*-chorusos)
 347     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 348     ;;
 349   powerpc-*-darwin*)
 350     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes gdb gprof"
 351     ;;
 352   *-*-darwin*)
 353     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes gdb gprof"
 354     noconfigdirs="$noconfigdirs ${libgcj}"
 355     ;;
 356   *-*-freebsd[[12]] | *-*-freebsd[[12]].* | *-*-freebsd*aout*)
 357     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 358     ;;
 359   *-*-freebsd*)
 360     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 361     if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
 362         && test -f /usr/local/include/gmp.h; then
 363       with_gmp=/usr/local
 364     fi
 365
 366     # Skip some stuff that's unsupported on some FreeBSD configurations.
 367     case "${target}" in
 368       i*86-*-*) ;;
 369       alpha*-*-*) ;;
 370       *)
 371         noconfigdirs="$noconfigdirs ${libgcj}"
 372         ;;
 373     esac
 374     ;;
 375   *-*-kaos*)
 376     # Remove unsupported stuff on all kaOS configurations.
 377     skipdirs="target-libiberty ${libgcj} target-libstdc++-v3 target-librx"
 378     skipdirs="$skipdirs target-libobjc target-examples target-groff target-gperf"
 379     skipdirs="$skipdirs zlib fastjar target-libjava target-boehm-gc target-zlib"
 380     noconfigdirs="$noconfigdirs target-libgloss"
 381     ;;
 382   *-*-netbsd*)
 383     # Skip some stuff on all NetBSD configurations.
 384     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss"
 385
 386     # Skip some stuff that's unsupported on some NetBSD configurations.
 387     case "${target}" in
 388       i*86-*-netbsdelf*) ;;
 389       arm*-*-netbsdelf*) ;;
 390       *)
 391         noconfigdirs="$noconfigdirs ${libgcj}"
 392         ;;
 393     esac
 394     ;;
 395   *-*-netware*)
 396     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss ${libgcj} target-libmudflap"
 397     ;;
 398   *-*-rtems*)
 399     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 400     ;;
 401   *-*-uclinux*)
 402     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-rda ${libgcj}"
 403     ;;
 404   *-*-vxworks*)
 405     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty ${libgcj}"
 406     ;;
 407   alpha*-dec-osf*)
 408     # ld works, but does not support shared libraries.
 409     # newlib is not 64 bit ready.  I'm not sure about fileutils.
 410     # gas doesn't generate exception information.
 411     noconfigdirs="$noconfigdirs gas ld fileutils target-newlib target-libgloss"
 412     ;;
 413   alpha*-*-*vms*)
 414     noconfigdirs="$noconfigdirs gdb ld target-newlib target-libgloss ${libgcj}"
 415     ;;
 416   alpha*-*-linux*)
 417     # newlib is not 64 bit ready
 418     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 419     ;;
 420   alpha*-*-*)
 421     # newlib is not 64 bit ready
 422     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 423     ;;
 424   am33_2.0-*-linux*)
 425     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 426     ;;
 427   sh-*-linux*)
 428     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 429     ;;
 430   sh*-*-pe|mips*-*-pe|*arm-wince-pe)
 431     noconfigdirs="$noconfigdirs ${libgcj}"
 432     noconfigdirs="$noconfigdirs target-examples"
 433     noconfigdirs="$noconfigdirs target-libiberty texinfo send-pr"
 434     noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
 435     noconfigdirs="$noconfigdirs expect dejagnu"
 436     # the C++ libraries don't build on top of CE's C libraries
 437     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 438     noconfigdirs="$noconfigdirs target-newlib"
 439     case "${host}" in
 440       *-*-cygwin*) ;; # keep gdb and readline
 441       *) noconfigdirs="$noconfigdirs gdb readline"
 442          ;;
 443     esac
 444     ;;
 445   arc-*-*)
 446     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 447     ;;
 448   arm-semi-aof )
 449     ;;
 450   arm-*-coff | strongarm-*-coff | xscale-*-coff)
 451     noconfigdirs="$noconfigdirs ${libgcj}"
 452     ;;
 453   arm-*-elf* | strongarm-*-elf* | xscale-*-elf* | arm*-*-eabi* )
 454     noconfigdirs="$noconfigdirs target-libffi target-qthreads"
 455     ;;
 456   arm*-*-symbianelf*)
 457     noconfigdirs="$noconfigdirs ${libgcj} target-libiberty"
 458     ;;
 459   arm-*-pe*)
 460     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 461     ;;
 462   thumb-*-coff)
 463     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 464     ;;
 465   thumb-*-elf)
 466     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 467     ;;
 468   thumb-*-pe)
 469     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 470     ;;
 471   arm-*-riscix*)
 472     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 473     ;;
 474   avr-*-*)
 475     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 476     ;;
 477   c4x-*-* | tic4x-*-*)
 478     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 479     ;;
 480   c54x*-*-* | tic54x-*-*)
 481     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj} gcc gdb newlib"
 482     ;;
 483   cris-*-* | crisv32-*-*)
 484     case "${target}" in
 485       *-*-elf | *-*-aout)
 486         noconfigdirs="$noconfigdirs ${libgcj}";;
 487       *)
 488         noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss";;
 489     esac
 490     ;;
 491   crx-*-*)
 492     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-mudflap ${libgcj}"
 493     ;;
 494   d10v-*-*)
 495     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 496     ;;
 497   d30v-*-*)
 498     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 499     ;;
 500   fr30-*-elf*)
 501     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 502     ;;
 503   frv-*-*)
 504     noconfigdirs="$noconfigdirs ${libgcj}"
 505     ;;
 506   h8300*-*-*)
 507     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 508     ;;
 509   h8500-*-*)
 510     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 511     ;;
 512   hppa1.1-*-osf* | hppa1.1-*-bsd* )
 513     ;;
 514   hppa*64*-*-linux* | parisc*64*-*-linux*)
 515     # In this case, it's because the hppa64-linux target is for
 516     # the kernel only at this point and has no libc, and thus no
 517     # headers, crt*.o, etc., all of which are needed by these.
 518     noconfigdirs="$noconfigdirs target-zlib"
 519     ;;
 520   parisc*-*-linux* | hppa*-*-linux*)
 521     ;;
 522   hppa*-*-*elf* | \
 523   hppa*-*-lites* | \
 524   hppa*-*-openbsd* | \
 525   hppa*64*-*-*)
 526     noconfigdirs="$noconfigdirs ${libgcj}"
 527     ;;
 528   hppa*-*-*)
 529     # According to Alexandre Oliva <aoliva@redhat.com>, libjava won't
 530     # build on HP-UX 10.20.
 531     noconfigdirs="$noconfigdirs ld shellutils ${libgcj}"
 532     ;;
 533   i960-*-*)
 534     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 535     ;;
 536   ia64*-*-elf*)
 537     # No gdb support yet.
 538     noconfigdirs="$noconfigdirs readline mmalloc libgui itcl gdb"
 539     ;;
 540   ia64*-**-hpux*)
 541     # No gdb or ld support yet.
 542     noconfigdirs="$noconfigdirs ${libgcj} readline mmalloc libgui itcl gdb ld"
 543     ;;
 544   i370-*-opened*)
 545     ;;
 546   i[[3456789]]86-*-coff | i[[3456789]]86-*-elf)
 547     noconfigdirs="$noconfigdirs ${libgcj}"
 548     ;;
 549   i[[3456789]]86-*-linux*)
 550     # The GCC port for glibc1 has no MD_FALLBACK_FRAME_STATE_FOR, so let's
 551     # not build java stuff by default.
 552     case "${target}" in
 553       *-*-*libc1*)
 554         noconfigdirs="$noconfigdirs ${libgcj}";;
 555     esac
 556
 557     # This section makes it possible to build newlib natively on linux.
 558     # If we are using a cross compiler then don't configure newlib.
 559     if test x${is_cross_compiler} != xno ; then
 560       noconfigdirs="$noconfigdirs target-newlib"
 561     fi
 562     noconfigdirs="$noconfigdirs target-libgloss"
 563     # If we are not using a cross compiler, do configure newlib.
 564     # Note however, that newlib will only be configured in this situation
 565     # if the --with-newlib option has been given, because otherwise
 566     # 'target-newlib' will appear in skipdirs.
 567     ;;
 568   i[[3456789]]86-*-mingw32*)
 569     target_configdirs="$target_configdirs target-mingw"
 570     noconfigdirs="$noconfigdirs expect target-libgloss ${libgcj}"
 571
 572     # Can't build gdb for mingw32 if not native.
 573     case "${host}" in
 574       i[[3456789]]86-*-mingw32) ;; # keep gdb tcl tk expect etc.
 575       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl gnuserv"
 576          ;;
 577     esac
 578     ;;
 579   *-*-cygwin*)
 580     target_configdirs="$target_configdirs target-libtermcap target-winsup"
 581     noconfigdirs="$noconfigdirs target-gperf target-libgloss ${libgcj}"
 582     # always build newlib if winsup directory is present.
 583     if test -d "$srcdir/winsup"; then
 584       skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 585     elif test -d "$srcdir/newlib"; then
 586       echo "Warning: winsup is missing so newlib can't be built."
 587     fi
 588
 589     # Can't build gdb for Cygwin if not native.
 590     case "${host}" in
 591       *-*-cygwin*) ;; # keep gdb tcl tk expect etc.
 592       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl libgui gnuserv"
 593          ;;
 594     esac
 595     ;;
 596   i[[3456789]]86-moss-msdos | i[[3456789]]86-*-moss* | \
 597   i[[3456789]]86-*-uwin* | i[[3456789]]86-*-interix* )
 598     ;;
 599   i[[3456789]]86-*-pe)
 600     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 601     ;;
 602   i[[3456789]]86-*-sco3.2v5*)
 603     # The linker does not yet know about weak symbols in COFF,
 604     # and is not configured to handle mixed ELF and COFF.
 605     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 606     ;;
 607   i[[3456789]]86-*-sco*)
 608     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 609     ;;
 610   i[[3456789]]86-*-solaris2*)
 611     noconfigdirs="$noconfigdirs target-libgloss"
 612     ;;
 613   i[[3456789]]86-*-sysv4*)
 614     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 615     ;;
 616   i[[3456789]]86-*-beos*)
 617     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 618     ;;
 619   m32r-*-*)
 620     noconfigdirs="$noconfigdirs ${libgcj}"
 621     ;;
 622   m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
 623     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 624     ;;
 625   m68k-*-elf*)
 626     noconfigdirs="$noconfigdirs ${libgcj}"
 627     ;;
 628   m68k-*-coff*)
 629     noconfigdirs="$noconfigdirs ${libgcj}"
 630     ;;
 631   mcore-*-pe*)
 632   # The EPOC C++ environment does not support exceptions or rtti,
 633   # and so building libstdc++-v3 tends not to always work.
 634     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 635     ;;
 636   mmix-*-*)
 637     noconfigdirs="$noconfigdirs ${libgcj} gdb libgloss target-libgfortran"
 638     ;;
 639   mn10200-*-*)
 640     noconfigdirs="$noconfigdirs ${libgcj}"
 641     ;;
 642   mn10300-*-*)
 643     noconfigdirs="$noconfigdirs ${libgcj}"
 644     ;;
 645   powerpc-*-aix*)
 646     # copied from rs6000-*-* entry
 647     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 648     ;;
 649   powerpc*-*-winnt* | powerpc*-*-pe* | ppc*-*-pe)
 650     target_configdirs="$target_configdirs target-winsup"
 651     noconfigdirs="$noconfigdirs gdb tcl tk make expect target-libgloss itcl gnuserv ${libgcj}"
 652     # always build newlib.
 653     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 654     ;;
 655     # This is temporary until we can link against shared libraries
 656   powerpcle-*-solaris*)
 657     noconfigdirs="$noconfigdirs gdb sim make tcl tk expect itcl gnuserv ${libgcj}"
 658     ;;
 659   powerpc-*-beos*)
 660     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 661     ;;
 662   powerpc-*-eabi)
 663     noconfigdirs="$noconfigdirs ${libgcj}"
 664     ;;
 665   powerpc-*-eabi* | powerpcle-*-eabi* | powerpc-*-rtems* )
 666     ;;
 667   rs6000-*-lynxos*)
 668     noconfigdirs="$noconfigdirs target-newlib gprof ${libgcj}"
 669     ;;
 670   rs6000-*-aix*)
 671     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 672     ;;
 673   rs6000-*-*)
 674     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 675     ;;
 676   m68k-apollo-*)
 677     noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss ${libgcj}"
 678     ;;
 679   mips*-*-irix5*)
 680     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 681     ;;
 682   mips*-*-irix6*)
 683     # Linking libjava exceeds command-line length limits on at least
 684     # IRIX 6.2, but not on IRIX 6.5.
 685     # Also, boehm-gc won't build on IRIX 6.5, according to Jeffrey Oldham
 686     # <oldham@codesourcery.com>
 687     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 688     ;;
 689   mips*-dec-bsd*)
 690     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 691     ;;
 692   mips*-*-bsd*)
 693     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 694     ;;
 695   mipstx39-*-*)
 696     noconfigdirs="$noconfigdirs gprof ${libgcj}"   # same as generic mips
 697     ;;
 698   mips64*-*-linux*)
 699     noconfigdirs="$noconfigdirs target-newlib ${libgcj}"
 700     ;;
 701   mips*-*-linux*)
 702     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 703     ;;
 704   mips*-*-*)
 705     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 706     ;;
 707   romp-*-*)
 708     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes target-libgloss ${libgcj}"
 709     ;;
 710   sh-*-* | sh64-*-*)
 711     case "${host}" in
 712       i[[3456789]]86-*-vsta) ;; # don't add gprof back in
 713       i[[3456789]]86-*-go32*) ;; # don't add gprof back in
 714       i[[3456789]]86-*-msdosdjgpp*) ;; # don't add gprof back in
 715       *) skipdirs=`echo " ${skipdirs} " | sed -e 's/ gprof / /'` ;;
 716     esac
 717     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 718     ;;
 719   sparc-*-elf*)
 720     noconfigdirs="$noconfigdirs ${libgcj}"
 721     ;;
 722   sparc64-*-elf*)
 723     noconfigdirs="$noconfigdirs ${libgcj}"
 724     ;;
 725   sparclite-*-*)
 726     noconfigdirs="$noconfigdirs ${libgcj}"
 727     ;;
 728   sparc-*-sunos4*)
 729     noconfigdirs="$noconfigdirs ${libgcj}"
 730     if test x${is_cross_compiler} != xno ; then
 731            noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 732     else
 733            use_gnu_ld=no
 734     fi
 735     ;;
 736   sparc-*-solaris2.[[0-6]] | sparc-*-solaris2.[[0-6]].*)
 737     noconfigdirs="$noconfigdirs ${libgcj}"
 738     ;;
 739   sparc-*-solaris* | sparc64-*-solaris* | sparcv9-*-solaris*)
 740     ;;
 741   v810-*-*)
 742     noconfigdirs="$noconfigdirs bfd binutils gas gcc gdb ld target-libstdc++-v3 opcodes target-libgloss ${libgcj}"
 743     ;;
 744   v850-*-*)
 745     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 746     ;;
 747   v850e-*-*)
 748     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 749     ;;
 750   v850ea-*-*)
 751     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 752     ;;
 753   vax-*-vms)
 754     noconfigdirs="$noconfigdirs bfd binutils gdb ld target-newlib opcodes target-libgloss ${libgcj}"
 755     ;;
 756   vax-*-*)
 757     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 758     ;;
 759   xtensa-*-*)
 760     noconfigdirs="$noconfigdirs ${libgcj}"
 761     ;;
 762   ip2k-*-*)
 763     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 764     ;;
 765   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
 766     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 767     ;;
 768   *-*-lynxos*)
 769     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 770     ;;
 771   *-*-*)
 772     noconfigdirs="$noconfigdirs ${libgcj}"
 773     ;;
 774 esac
 775
 776 # If we aren't building newlib, then don't build libgloss, since libgloss
 777 # depends upon some newlib header files.
 778 case "${noconfigdirs}" in
 779   *target-libgloss*) ;;
 780   *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
 781 esac
 782
 783 # Work in distributions that contain no compiler tools, like Autoconf.
 784 tentative_cc=""
 785 host_makefile_frag=/dev/null
 786 if test -d ${srcdir}/config ; then
 787 case "${host}" in
 788   m68k-hp-hpux*)
 789     # Avoid "too much defining" errors from HPUX compiler.
 790     tentative_cc="cc -Wp,-H256000"
 791     # If "ar" in $PATH is GNU ar, the symbol table may need rebuilding.
 792     # If it's HP/UX ar, this should be harmless.
 793     RANLIB="ar ts"
 794     ;;
 795   m68k-apollo-sysv*)
 796     tentative_cc="cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DUSG"
 797     ;;
 798   m68k-apollo-bsd*)
 799     #None of the Apollo compilers can compile gas or binutils.  The preprocessor
 800     # chokes on bfd, the compiler won't let you assign integers to enums, and
 801     # other problems.  Defining CC to gcc is a questionable way to say "don't use
 802     # the apollo compiler" (the preferred version of GCC could be called cc,
 803     # or whatever), but I'm not sure leaving CC as cc is any better...
 804     #CC=cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DNO_STDARG
 805     # Used to have BISON=yacc.
 806     tentative_cc=gcc
 807     ;;
 808   m88k-dg-dgux*)
 809     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 810     ;;
 811   m88k-harris-cxux*)
 812     # Under CX/UX, we want to tell the compiler to use ANSI mode.
 813     tentative_cc="cc -Xa"
 814     host_makefile_frag="config/mh-cxux"
 815     ;;
 816   m88k-motorola-sysv*)
 817     ;;
 818   mips*-dec-ultrix*)
 819     tentative_cc="cc -Wf,-XNg1000"
 820     host_makefile_frag="config/mh-decstation"
 821     ;;
 822   mips*-nec-sysv4*)
 823     # The C compiler on NEC MIPS SVR4 needs bigger tables.
 824     tentative_cc="cc -ZXNd=5000 -ZXNg=1000"
 825     host_makefile_frag="config/mh-necv4"
 826     ;;
 827   mips*-sgi-irix4*)
 828     # Tell compiler to use K&R C.  We can't compile under the SGI Ansi
 829     # environment.  Also bump switch table size so that cp-parse will
 830     # compile.  Bump string length limit so linker builds.
 831     tentative_cc="cc -cckr -Wf,-XNg1500 -Wf,-XNk1000 -Wf,-XNh2000 -Wf,-XNl8192"
 832     ;;
 833   mips*-*-sysv4*)
 834     host_makefile_frag="config/mh-sysv4"
 835     ;;
 836   mips*-*-sysv*)
 837     # This is for a MIPS running RISC/os 4.52C.
 838
 839     # This is needed for GDB, but needs to be in the top-level make because
 840     # if a library is compiled with the bsd headers and gets linked with the
 841     # sysv system libraries all hell can break loose (e.g. a jmp_buf might be
 842     # a different size).
 843     # ptrace(2) apparently has problems in the BSD environment.  No workaround is
 844     # known except to select the sysv environment.  Could we use /proc instead?
 845     # These "sysv environments" and "bsd environments" often end up being a pain.
 846     #
 847     # This is not part of CFLAGS because perhaps not all C compilers have this
 848     # option.
 849     tentative_cc="cc -systype sysv"
 850     ;;
 851   i370-ibm-opened*)
 852     tentative_cc="c89"
 853     ;;
 854   i[[3456789]]86-*-sysv5*)
 855     host_makefile_frag="config/mh-sysv5"
 856     ;;
 857   i[[3456789]]86-*-dgux*)
 858     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 859     host_makefile_frag="config/mh-dgux386"
 860     ;;
 861   i[[3456789]]86-ncr-sysv4.3*)
 862     # The MetaWare compiler will generate a copyright message unless you
 863     # turn it off by adding the -Hnocopyr flag.
 864     tentative_cc="cc -Hnocopyr"
 865     ;;
 866   i[[3456789]]86-ncr-sysv4*)
 867     # for an NCR 3000 (i486/SVR4) system.
 868     # The NCR 3000 ships with a MetaWare compiler installed as /bin/cc.
 869     # This compiler not only emits obnoxious copyright messages every time
 870     # you run it, but it chokes and dies on a whole bunch of GNU source
 871     # files.  Default to using the AT&T compiler installed in /usr/ccs/ATT/cc.
 872     tentative_cc="/usr/ccs/ATT/cc"
 873     host_makefile_frag="config/mh-ncr3000"
 874     ;;
 875   i[[3456789]]86-*-sco3.2v5*)
 876     ;;
 877   i[[3456789]]86-*-sco*)
 878     # The native C compiler botches some simple uses of const.  Unfortunately,
 879     # it doesn't defined anything like "__sco__" for us to test for in ansidecl.h.
 880     tentative_cc="cc -Dconst="
 881     host_makefile_frag="config/mh-sco"
 882     ;;
 883   i[[3456789]]86-*-udk*)
 884     host_makefile_frag="config/mh-sysv5"
 885     ;;
 886   i[[3456789]]86-*-solaris2*)
 887     host_makefile_frag="config/mh-sysv4"
 888     ;;
 889   i[[3456789]]86-*-msdosdjgpp*)
 890     host_makefile_frag="config/mh-djgpp"
 891     ;;
 892   *-cygwin*)
 893     host_makefile_frag="config/mh-cygwin"
 894     ;;
 895   *-mingw32*)
 896     host_makefile_frag="config/mh-mingw32"
 897     ;;
 898   *-interix*)
 899     host_makefile_frag="config/mh-interix"
 900     ;;
 901   vax-*-ultrix2*)
 902     # The old BSD pcc isn't up to compiling parts of gdb so use gcc
 903     tentative_cc=gcc
 904     ;;
 905   *-*-solaris2*)
 906     host_makefile_frag="config/mh-solaris"
 907     ;;
 908   m68k-sun-sunos*)
 909     # Sun's C compiler needs the -J flag to be able to compile cp-parse.c
 910     # without overflowing the jump tables (-J says to use a 32 bit table)
 911     tentative_cc="cc -J"
 912     ;;
 913   *-hp-hpux*)
 914     tentative_cc="cc -Wp,-H256000"
 915     ;;
 916   *-*-hiux*)
 917     tentative_cc="cc -Wp,-H256000"
 918     ;;
 919   rs6000-*-lynxos*)
 920     # /bin/cc is less than useful for our purposes.  Always use GCC
 921     tentative_cc="/usr/cygnus/progressive/bin/gcc"
 922     host_makefile_frag="config/mh-lynxrs6k"
 923     ;;
 924   powerpc-*-darwin*)
 925     host_makefile_frag="config/mh-ppc-darwin"
 926     ;;
 927   *-*-lynxos*)
 928     # /bin/cc is less than useful for our purposes.  Always use GCC
 929     tentative_cc="/bin/gcc"
 930     ;;
 931   *-*-sysv4*)
 932     host_makefile_frag="config/mh-sysv4"
 933     ;;
 934   # This is placed last to prevent interfering with the cases above.
 935   i[[3456789]]86-*-*)
 936     # Build the stage2 and stage3 compilers with -fomit-frame-pointer.
 937     host_makefile_frag="config/mh-x86omitfp"
 938     ;;
 939 esac
 940 fi
 941
 942 # If we aren't going to be using gcc, see if we can extract a definition
 943 # of CC from the fragment.
 944 # Actually, use the 'pre-extracted' version above.
 945 if test -z "${CC}" && test "${build}" = "${host}" ; then
 946   IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
 947   found=
 948   for dir in $PATH; do
 949     test -z "$dir" && dir=.
 950     if test -f $dir/gcc; then
 951       found=yes
 952       break
 953     fi
 954   done
 955   IFS="$save_ifs"
 956   if test -z "${found}" && test -n "${tentative_cc}" ; then
 957     CC=$tentative_cc
 958   fi
 959 fi
 960
 961 if test "${build}" != "${host}" ; then
 962   # If we are doing a Canadian Cross, in which the host and build systems
 963   # are not the same, we set reasonable default values for the tools.
 964
 965   CC=${CC-${host_alias}-gcc}
 966   CFLAGS=${CFLAGS-"-g -O2"}
 967   CXX=${CXX-${host_alias}-c++}
 968   CXXFLAGS=${CXXFLAGS-"-g -O2"}
 969   CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
 970   CC_FOR_TARGET=${CC_FOR_TARGET-${target_alias}-gcc}
 971   CXX_FOR_TARGET=${CXX_FOR_TARGET-${target_alias}-c++}
 972   GCJ_FOR_TARGET=${GCJ_FOR_TARGET-${target_alias}-gcj}
 973   GCC_FOR_TARGET=${GCC_FOR_TARGET-${CC_FOR_TARGET-${target_alias}-gcc}}
 974   BUILD_PREFIX=${build_alias}-
 975   BUILD_PREFIX_1=${build_alias}-
 976
 977 else
 978   # Set reasonable default values for some tools even if not Canadian.
 979   # Of course, these are different reasonable default values, originally
 980   # specified directly in the Makefile.
 981   # We don't export, so that autoconf can do its job.
 982   # Note that all these settings are above the fragment inclusion point
 983   # in Makefile.in, so can still be overridden by fragments.
 984   # This is all going to change when we autoconfiscate...
 985
 986   CC_FOR_BUILD="\$(CC)"
 987   GCC_FOR_TARGET="\$(USUAL_GCC_FOR_TARGET)"
 988   BUILD_PREFIX=
 989   BUILD_PREFIX_1=loser-
 990
 991   AC_PROG_CC
 992
 993   # We must set the default linker to the linker used by gcc for the correct
 994   # operation of libtool.  If LD is not defined and we are using gcc, try to
 995   # set the LD default to the ld used by gcc.
 996   if test -z "$LD"; then
 997     if test "$GCC" = yes; then
 998       case $build in
 999       *-*-mingw*)
1000         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1001       *)
1002         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1003       esac
1004       case $gcc_prog_ld in
1005       # Accept absolute paths.
1006       [[\\/]* | [A-Za-z]:[\\/]*)]
1007         LD="$gcc_prog_ld" ;;
1008       esac
1009     fi
1010   fi
1011
1012   CXX=${CXX-"c++"}
1013   CFLAGS=${CFLAGS-"-g"}
1014   CXXFLAGS=${CXXFLAGS-"-g -O2"}
1015 fi
1016
1017 ACX_PROG_GNAT
1018 ACX_PROG_CMP_IGNORE_INITIAL
1019
1020 # Check for GMP and MPFR
1021 gmplibs=
1022 gmpinc=
1023 have_gmp=yes
1024 # Specify a location for mpfr
1025 # check for this first so it ends up on the link line before gmp.
1026 AC_ARG_WITH(mpfr-dir, [  --with-mpfr-dir=PATH    Specify source directory for MPFR library])
1027
1028 if test "x$with_mpfr_dir" != x; then
1029   gmpinc="-I$with_mpfr_dir/mpfr"
1030   gmplibs="$with_mpfr_dir/libmpfr.a"
1031 else
1032   gmplibs="-lmpfr"
1033 fi
1034
1035 AC_ARG_WITH(mpfr, [  --with-mpfr=PATH        Specify directory for installed MPFR library])
1036
1037 if test "x$with_mpfr" != x; then
1038   gmplibs="-L$with_mpfr/lib $gmplibs"
1039   gmpinc="-I$with_mpfr/include"
1040 fi
1041
1042 # Specify a location for gmp
1043 AC_ARG_WITH(gmp-dir, [  --with-gmp-dir=PATH     Specify source directory for GMP library])
1044
1045 if test "x$with_gmp_dir" != x; then
1046   gmpinc="$gmpinc -I$with_gmp_dir"
1047   if test -f "$with_gmp_dir/.libs/libgmp.a"; then
1048     gmplibs="$gmplibs $with_gmp_dir/.libs/libgmp.a"
1049   elif test -f "$with_gmp_dir/_libs/libgmp.a"; then
1050     gmplibs="$gmplibs $with_gmp_dir/_libs/libgmp.a"
1051   fi
1052   # One of the later tests will catch the error if neither library is present.
1053 else
1054   gmplibs="$gmplibs -lgmp"
1055 fi
1056
1057 AC_ARG_WITH(gmp, [  --with-gmp=PATH         Specify directory for installed GMP library])
1058
1059 if test "x$with_gmp" != x; then
1060   gmplibs="-L$with_gmp/lib $gmplibs"
1061   gmpinc="-I$with_gmp/include $gmpinc"
1062 fi
1063
1064 saved_CFLAGS="$CFLAGS"
1065 CFLAGS="$CFLAGS $gmpinc"
1066 # Check GMP actually works
1067 AC_MSG_CHECKING([for correct version of gmp.h])
1068 AC_TRY_COMPILE([#include "gmp.h"],[
1069 #if __GNU_MP_VERSION < 3
1070 choke me
1071 #endif
1072 ], [AC_MSG_RESULT([yes])],
1073   [AC_MSG_RESULT([no]); have_gmp=no])
1074
1075 if test x"$have_gmp" = xyes; then
1076   AC_MSG_CHECKING([for MPFR])
1077
1078   saved_LIBS="$LIBS"
1079   LIBS="$LIBS $gmplibs"
1080   AC_TRY_LINK([#include <gmp.h>
1081 #include <mpfr.h>], [mpfr_t n; mpfr_init(n);],
1082     [AC_MSG_RESULT([yes])],  [AC_MSG_RESULT([no]); have_gmp=no])
1083   LIBS="$saved_LIBS"
1084   CFLAGS="$saved_CFLAGS"
1085 fi
1086
1087 # Flags needed for both GMP and/or MPFR
1088 AC_SUBST(gmplibs)
1089 AC_SUBST(gmpinc)
1090
1091 # By default, C is the only stage 1 language.
1092 stage1_languages=c
1093 AC_SUBST(stage1_languages)
1094
1095 # Figure out what language subdirectories are present.
1096 # Look if the user specified --enable-languages="..."; if not, use
1097 # the environment variable $LANGUAGES if defined. $LANGUAGES might
1098 # go away some day.
1099 # NB:  embedded tabs in this IF block -- do not untabify
1100 if test -d ${srcdir}/gcc; then
1101   if test x"${enable_languages+set}" != xset; then
1102     if test x"${LANGUAGES+set}" = xset; then
1103       enable_languages="${LANGUAGES}"
1104         echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1105     else
1106       enable_languages=all
1107     fi
1108   else
1109     if test x"${enable_languages}" = x ||
1110        test x"${enable_languages}" = xyes;
1111        then
1112       echo configure.in: --enable-languages needs at least one language argument 1>&2
1113       exit 1
1114     fi
1115   fi
1116   enable_languages=`echo "${enable_languages}" | sed -e 's/[[   ,]][[   ,]]*/,/g' -e 's/,$//'`
1117
1118   # First scan to see if an enabled language requires some other language.
1119   # We assume that a given config-lang.in will list all the language
1120   # front ends it requires, even if some are required indirectly.
1121   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1122     case ${lang_frag} in
1123       ..) ;;
1124       # The odd quoting in the next line works around
1125       # an apparent bug in bash 1.12 on linux.
1126       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1127       *)
1128         # From the config-lang.in, get $language, $lang_requires
1129         language=
1130         lang_requires=
1131         . ${lang_frag}
1132         for other in ${lang_requires} ; do
1133           case ,${enable_languages}, in
1134             *,$other,*) ;;
1135             *,all,*) ;;
1136             *,$language,*)
1137               echo " \`$other' language required by \`$language'; enabling" 1>&2
1138               enable_languages="${enable_languages},${other}"
1139               ;;
1140           esac
1141         done
1142         ;;
1143     esac
1144   done
1145
1146   new_enable_languages=c
1147   missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
1148   potential_languages=c
1149
1150   for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1151     case ${lang_frag} in
1152       ..) ;;
1153       # The odd quoting in the next line works around
1154       # an apparent bug in bash 1.12 on linux.
1155       ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1156       *)
1157         # From the config-lang.in, get $language, $target_libs,
1158         # $lang_dirs, $boot_language, and $build_by_default
1159         language=
1160         target_libs=
1161         lang_dirs=
1162         boot_language=
1163         build_by_default=
1164         need_gmp=
1165         . ${lang_frag}
1166         potential_languages="${potential_languages},${language}"
1167         # This is quite sensitive to the ordering of the case statement arms.
1168         case ,${enable_languages},:${language}:${have_gnat}:${build_by_default} in
1169           *::*:*)
1170             echo "${lang_frag} doesn't set \$language." 1>&2
1171             exit 1
1172             ;;
1173           *:ada:no:*)
1174             # Ada was requested with no preexisting GNAT.  Disable unconditionally.
1175             add_this_lang=no
1176             ;;
1177           *,${language},*:*:*:*)
1178             # Language was explicitly selected; include it.
1179             add_this_lang=yes
1180             ;;
1181           *,all,*:*:*:no)
1182             # 'all' was selected, but this is not a default language
1183             # so do not include it.
1184             add_this_lang=no
1185             ;;
1186           *,all,*:*:*:*)
1187             # 'all' was selected and this is a default language; include it.
1188             add_this_lang=yes
1189             ;;
1190           *)
1191             add_this_lang=no
1192             ;;
1193         esac
1194
1195         # Disable languages that need GMP if it isn't available.
1196         case ,${enable_languages},:${have_gmp}:${need_gmp} in
1197           *,${language},*:no:yes)
1198             # Specifically requested language; tell them.
1199             AC_MSG_ERROR([GMP with MPFR support is required to build $language])
1200             ;;
1201           *:no:yes)
1202             # Silently disable.
1203             add_this_lang=no
1204             ;;
1205         esac
1206
1207         case $add_this_lang in
1208           no)
1209             # Remove language-dependent dirs.
1210             eval noconfigdirs='"$noconfigdirs "'\"$target_libs $lang_dirs\"
1211             ;;
1212           *)
1213             new_enable_languages="$new_enable_languages,$language"
1214             missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
1215             case ${boot_language} in
1216               yes)
1217                 # Add to (comma-separated) list of stage 1 languages.
1218                 stage1_languages="${stage1_languages},${language}"
1219                 ;;
1220             esac
1221             ;;
1222         esac
1223         ;;
1224     esac
1225   done
1226
1227   missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
1228   if test "x$missing_languages" != x; then
1229     AC_MSG_ERROR([
1230 The following requested languages were not found: ${missing_languages}
1231 The available languages are: ${potential_languages}])
1232   fi
1233
1234   if test "x$new_enable_languages" != "x$enable_languages"; then
1235     echo The following languages will be built: ${new_enable_languages}
1236   fi
1237   enable_languages="$new_enable_languages"
1238   ac_configure_args=`echo " $ac_configure_args" | sed -e 's/ --enable-languages=[[^ ]]*//' -e 's/$/ --enable-languages='"$enable_languages"/ `
1239 fi
1240
1241 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
1242 # $build_configdirs and $target_configdirs.
1243 # If we have the source for $noconfigdirs entries, add them to $notsupp.
1244
1245 notsupp=""
1246 for dir in . $skipdirs $noconfigdirs ; do
1247   dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
1248   if test $dir != .  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1249     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
1250     if test -r $srcdir/$dirname/configure ; then
1251       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1252         true
1253       else
1254         notsupp="$notsupp $dir"
1255       fi
1256     fi
1257   fi
1258   if test $dir != .  && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1259     build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
1260     if test -r $srcdir/$dirname/configure ; then
1261       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1262         true
1263       else
1264         notsupp="$notsupp $dir"
1265       fi
1266     fi
1267   fi
1268   if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1269     target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
1270     if test -r $srcdir/$dirname/configure ; then
1271       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1272         true
1273       else
1274         notsupp="$notsupp $dir"
1275       fi
1276     fi
1277   fi
1278 done
1279
1280 # Sometimes the tools are distributed with libiberty but with no other
1281 # libraries.  In that case, we don't want to build target-libiberty.
1282 if test -n "${target_configdirs}" ; then
1283   others=
1284   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
1285     if test "$i" != "libiberty" ; then
1286       if test -r $srcdir/$i/configure ; then
1287         others=yes;
1288         break;
1289       fi
1290     fi
1291   done
1292   if test -z "${others}" ; then
1293     target_configdirs=
1294   fi
1295 fi
1296
1297 # Quietly strip out all directories which aren't configurable in this tree.
1298 # This relies on all configurable subdirectories being autoconfiscated, which
1299 # is now the case.
1300 build_configdirs_all="$build_configdirs"
1301 build_configdirs=
1302 for i in ${build_configdirs_all} ; do
1303   j=`echo $i | sed -e s/build-//g`
1304   if test -f ${srcdir}/$j/configure ; then
1305     build_configdirs="${build_configdirs} $i"
1306   fi
1307 done
1308
1309 configdirs_all="$configdirs"
1310 configdirs=
1311 for i in ${configdirs_all} ; do
1312   if test -f ${srcdir}/$i/configure ; then
1313     configdirs="${configdirs} $i"
1314   fi
1315 done
1316
1317 target_configdirs_all="$target_configdirs"
1318 target_configdirs=
1319 for i in ${target_configdirs_all} ; do
1320   j=`echo $i | sed -e s/target-//g`
1321   if test -f ${srcdir}/$j/configure ; then
1322     target_configdirs="${target_configdirs} $i"
1323   fi
1324 done
1325
1326 # Produce a warning message for the subdirs we can't configure.
1327 # This isn't especially interesting in the Cygnus tree, but in the individual
1328 # FSF releases, it's important to let people know when their machine isn't
1329 # supported by the one or two programs in a package.
1330
1331 if test -n "${notsupp}" && test -z "${norecursion}" ; then
1332   # If $appdirs is non-empty, at least one of those directories must still
1333   # be configured, or we error out.  (E.g., if the gas release supports a
1334   # specified target in some subdirs but not the gas subdir, we shouldn't
1335   # pretend that all is well.)
1336   if test -n "$appdirs" ; then
1337     for dir in $appdirs ; do
1338       if test -r $dir/Makefile.in ; then
1339         if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1340           appdirs=""
1341           break
1342         fi
1343         if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
1344           appdirs=""
1345           break
1346         fi
1347       fi
1348     done
1349     if test -n "$appdirs" ; then
1350       echo "*** This configuration is not supported by this package." 1>&2
1351       exit 1
1352     fi
1353   fi
1354   # Okay, some application will build, or we don't care to check.  Still
1355   # notify of subdirs not getting built.
1356   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
1357   echo "    ${notsupp}" 1>&2
1358   echo "    (Any other directories should still work fine.)" 1>&2
1359 fi
1360
1361 case "$host" in
1362   *msdosdjgpp*)
1363     enable_gdbtk=no ;;
1364 esac
1365
1366 copy_dirs=
1367
1368 # Handle --with-headers=XXX.  If the value is not "yes", the contents of
1369 # the named directory are copied to $(tooldir)/sys-include.
1370 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
1371   if test x${is_cross_compiler} = xno ; then
1372     echo 1>&2 '***' --with-headers is only supported when cross compiling
1373     exit 1
1374   fi
1375   if test x"${with_headers}" != xyes ; then
1376     case "${exec_prefixoption}" in
1377     "") x=${prefix} ;;
1378     *) x=${exec_prefix} ;;
1379     esac
1380     copy_dirs="${copy_dirs} ${with_headers} $x/${target_alias}/sys-include"
1381   fi
1382 fi
1383
1384 # Handle --with-libs=XXX.  If the value is not "yes", the contents of
1385 # the name directories are copied to $(tooldir)/lib.  Multiple directories
1386 # are permitted.
1387 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
1388   if test x${is_cross_compiler} = xno ; then
1389     echo 1>&2 '***' --with-libs is only supported when cross compiling
1390     exit 1
1391   fi
1392   if test x"${with_libs}" != xyes ; then
1393     # Copy the libraries in reverse order, so that files in the first named
1394     # library override files in subsequent libraries.
1395     case "${exec_prefixoption}" in
1396     "") x=${prefix} ;;
1397     *) x=${exec_prefix} ;;
1398     esac
1399     for l in ${with_libs}; do
1400       copy_dirs="$l $x/${target_alias}/lib ${copy_dirs}"
1401     done
1402   fi
1403 fi
1404
1405 # Handle ${copy_dirs}
1406 set fnord ${copy_dirs}
1407 shift
1408 while test $# != 0 ; do
1409   if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
1410     :
1411   else
1412     echo Copying $1 to $2
1413
1414     # Use the install script to create the directory and all required
1415     # parent directories.
1416     if test -d $2 ; then
1417       :
1418     else
1419       echo >config.temp
1420       ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
1421     fi
1422
1423     # Copy the directory, assuming we have tar.
1424     # FIXME: Should we use B in the second tar?  Not all systems support it.
1425     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
1426
1427     # It is the responsibility of the user to correctly adjust all
1428     # symlinks.  If somebody can figure out how to handle them correctly
1429     # here, feel free to add the code.
1430
1431     echo $1 > $2/COPIED
1432   fi
1433   shift; shift
1434 done
1435
1436 extra_arflags_for_target=
1437 extra_nmflags_for_target=
1438 extra_ranlibflags_for_target=
1439 target_makefile_frag=/dev/null
1440 case "${target}" in
1441   *-*-netware*)
1442     target_makefile_frag="config/mt-netware"
1443     ;;
1444   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
1445     target_makefile_frag="config/mt-gnu"
1446     ;;
1447   *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
1448     # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
1449     # commands to handle both 32-bit and 64-bit objects.  These flags are
1450     # harmless if we're using GNU nm or ar.
1451     extra_arflags_for_target=" -X32_64"
1452     extra_nmflags_for_target=" -B -X32_64"
1453     ;;
1454   *-*-darwin*)
1455     # ranlib from Darwin requires the -c flag to look at common symbols.
1456     extra_ranlibflags_for_target=" -c"
1457     ;;
1458   mips*-*-pe | sh*-*-pe | *arm-wince-pe)
1459     target_makefile_frag="config/mt-wince"
1460     ;;
1461 esac
1462
1463 alphaieee_frag=/dev/null
1464 case $target in
1465   alpha*-*-*)
1466     # This just makes sure to use the -mieee option to build target libs.
1467     # This should probably be set individually by each library.
1468     alphaieee_frag="config/mt-alphaieee"
1469     ;;
1470 esac
1471
1472 # If --enable-target-optspace always use -Os instead of -O2 to build
1473 # the target libraries, similarly if it is not specified, use -Os
1474 # on selected platforms.
1475 ospace_frag=/dev/null
1476 case "${enable_target_optspace}:${target}" in
1477   yes:*)
1478     ospace_frag="config/mt-ospace"
1479     ;;
1480   :d30v-*)
1481     ospace_frag="config/mt-d30v"
1482     ;;
1483   :m32r-* | :d10v-* | :fr30-*)
1484     ospace_frag="config/mt-ospace"
1485     ;;
1486   no:* | :*)
1487     ;;
1488   *)
1489     echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
1490     ;;
1491 esac
1492
1493 # Set with_gnu_as and with_gnu_ld as appropriate.
1494 #
1495 # This is done by determining whether or not the appropriate directory
1496 # is available, and by checking whether or not specific configurations
1497 # have requested that this magic not happen.
1498 #
1499 # The command line options always override the explicit settings in
1500 # configure.in, and the settings in configure.in override this magic.
1501 #
1502 # If the default for a toolchain is to use GNU as and ld, and you don't
1503 # want to do that, then you should use the --without-gnu-as and
1504 # --without-gnu-ld options for the configure script.
1505
1506 if test x${use_gnu_as} = x &&
1507    echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
1508   with_gnu_as=yes
1509   extra_host_args="$extra_host_args --with-gnu-as"
1510 fi
1511
1512 if test x${use_gnu_ld} = x &&
1513    echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 ; then
1514   with_gnu_ld=yes
1515   extra_host_args="$extra_host_args --with-gnu-ld"
1516 fi
1517
1518 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
1519 # can detect this case.
1520
1521 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
1522   with_newlib=yes
1523   extra_host_args="$extra_host_args --with-newlib"
1524 fi
1525
1526 # Default to using --with-stabs for certain targets.
1527 if test x${with_stabs} = x ; then
1528   case "${target}" in
1529   mips*-*-irix[[56]]*)
1530     ;;
1531   mips*-*-* | alpha*-*-osf*)
1532     with_stabs=yes;
1533     extra_host_args="${extra_host_args} --with-stabs"
1534     ;;
1535   esac
1536 fi
1537
1538 # hpux11 in 64bit mode has libraries in a weird place.  Arrange to find
1539 # them automatically.
1540 case "${host}" in
1541   hppa*64*-*-hpux11*)
1542     extra_host_args="$extra_host_args -x-libraries=/usr/lib/pa20_64 -x-includes=/usr/X11R6/include"
1543     ;;
1544 esac
1545
1546 # Some systems (e.g., one of the i386-aix systems the gas testers are
1547 # using) don't handle "\$" correctly, so don't use it here.
1548 tooldir='${exec_prefix}'/${target_alias}
1549 build_tooldir=${tooldir}
1550
1551 # Generate default definitions for YACC, M4, LEX and other programs that run
1552 # on the build machine.  These are used if the Makefile can't locate these
1553 # programs in objdir.
1554 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
1555 AC_CHECK_PROGS([CONFIGURED_BISON], [bison], [$MISSING bison])
1556 AC_CHECK_PROGS([CONFIGURED_YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
1557 AC_CHECK_PROGS([CONFIGURED_M4], [gm4 gnum4 m4], [$MISSING m4])
1558 AC_CHECK_PROGS([CONFIGURED_FLEX], [flex], [$MISSING flex])
1559 AC_CHECK_PROGS([CONFIGURED_LEX], [flex lex], [$MISSING flex])
1560 AC_CHECK_PROGS([CONFIGURED_MAKEINFO], makeinfo, [$MISSING makeinfo])
1561
1562 # Create a .gdbinit file which runs the one in srcdir
1563 # and tells GDB to look there for source files.
1564
1565 if test -r ${srcdir}/.gdbinit ; then
1566   case ${srcdir} in
1567     .) ;;
1568     *) cat > ./.gdbinit <<EOF
1569 # ${NO_EDIT}
1570 dir ${srcdir}
1571 dir .
1572 source ${srcdir}/.gdbinit
1573 EOF
1574     ;;
1575   esac
1576 fi
1577
1578 # Make sure that the compiler is able to generate an executable.  If it
1579 # can't, we are probably in trouble.  We don't care whether we can run the
1580 # executable--we might be using a cross compiler--we only care whether it
1581 # can be created.  At this point the main configure script has set CC.
1582 we_are_ok=no
1583 echo "int main () { return 0; }" > conftest.c
1584 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
1585 if test $? = 0 ; then
1586   if test -s conftest || test -s conftest.exe ; then
1587     we_are_ok=yes
1588   fi
1589 fi
1590 case $we_are_ok in
1591   no)
1592     echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
1593     echo 1>&2 "*** You must set the environment variable CC to a working compiler."
1594     rm -f conftest*
1595     exit 1
1596     ;;
1597 esac
1598 rm -f conftest*
1599
1600 # The Solaris /usr/ucb/cc compiler does not appear to work.
1601 case "${host}" in
1602   sparc-sun-solaris2*)
1603       CCBASE="`echo ${CC-cc} | sed 's/ .*$//'`"
1604       if test "`type $CCBASE | sed 's/^[[^/]]*//'`" = "/usr/ucb/cc" ; then
1605           could_use=
1606           test -d /opt/SUNWspro/bin && could_use="/opt/SUNWspro/bin"
1607           if test -d /opt/cygnus/bin ; then
1608               if test "$could_use" = "" ; then
1609                   could_use="/opt/cygnus/bin"
1610               else
1611                   could_use="$could_use or /opt/cygnus/bin"
1612               fi
1613           fi
1614         if test "$could_use" = "" ; then
1615             echo "Warning: compilation may fail because you're using"
1616             echo "/usr/ucb/cc.  You should change your PATH or CC "
1617             echo "variable and rerun configure."
1618         else
1619             echo "Warning: compilation may fail because you're using"
1620             echo "/usr/ucb/cc, when you should use the C compiler from"
1621             echo "$could_use.  You should change your"
1622             echo "PATH or CC variable and rerun configure."
1623         fi
1624       fi
1625   ;;
1626 esac
1627
1628 # If no --enable-shared nor --disable-shared is specified, we set up
1629 # LD_LIBRARY_PATH when we build for gcc.
1630 case $enable_shared in
1631 "")
1632   if test -d ${srcdir}/gcc; then
1633     set_lib_path=yes
1634   else
1635     set_lib_path=no
1636   fi
1637   ;;
1638 *)
1639   set_lib_path=$enable_shared
1640   ;;
1641 esac
1642
1643 # If --enable-shared was set, we must set LD_LIBRARY_PATH so that the
1644 # binutils tools will find libbfd.so.
1645 case "${set_lib_path}" in
1646   no) SET_LIB_PATH= ;;
1647   *) SET_LIB_PATH="\$(REALLY_SET_LIB_PATH)" ;;
1648 esac
1649
1650 case "${host}" in
1651   *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
1652   *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
1653 esac
1654
1655 # Record target_configdirs and the configure arguments for target and
1656 # build configuration in Makefile.
1657 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
1658 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
1659
1660 # Determine whether gdb needs tk/tcl or not.
1661 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
1662 # and in that case we want gdb to be built without tk.  Ugh!
1663 # In fact I believe gdb is the *only* package directly dependent on tk,
1664 # so we should be able to put the 'maybe's in unconditionally and
1665 # leave out the maybe dependencies when enable_gdbtk is false.  I'm not
1666 # 100% sure that that's safe though.
1667
1668 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
1669 case "$enable_gdbtk" in
1670   no)
1671     GDB_TK="" ;;
1672   yes)
1673     GDB_TK="${gdb_tk}" ;;
1674   *)
1675     # Only add the dependency on gdbtk when GDBtk is part of the gdb
1676     # distro.  Eventually someone will fix this and move Insight, nee
1677     # gdbtk to a separate directory.
1678     if test -d ${srcdir}/gdb/gdbtk ; then
1679       GDB_TK="${gdb_tk}"
1680     else
1681       GDB_TK=""
1682     fi
1683     ;;
1684 esac
1685
1686 # Strip out unwanted targets.
1687
1688 # While at that, we remove Makefiles if we were started for recursive
1689 # configuration, so that the top-level Makefile reconfigures them,
1690 # like we used to do when configure itself was recursive.
1691
1692 # Loop over modules.  $extrasub must be used with care, limiting as
1693 # much as possible the usage of range addresses.  That's because autoconf
1694 # splits the sed script to overcome limits in the number of commands,
1695 # and relying on carefully-timed sed passes may turn out to be very hard
1696 # to maintain later.  In this particular case, you just have to be careful
1697 # not to nest @if/@endif pairs, because configure will not warn you at all.
1698
1699 AC_ARG_ENABLE([bootstrap],
1700 [  --enable-bootstrap[=lean]     Enable bootstrapping [no]],,
1701 enable_bootstrap=default)
1702
1703 # Issue errors and warnings for invalid/strange bootstrap combinations.
1704 case "$configdirs" in
1705   *gcc*) have_compiler=yes ;;
1706   *) have_compiler=no ;;
1707 esac
1708
1709 case "$have_compiler:$host:$target:$enable_bootstrap" in
1710   *:*:*:no) ;;
1711
1712   # Default behavior.  (We'll) enable bootstrap if we have a compiler
1713   # and we are in a native configuration.
1714   yes:$build:$build:default)
1715     # This will become 'yes'
1716     enable_bootstrap=no ;;
1717
1718   *:*:*:default)
1719     enable_bootstrap=no ;;
1720
1721   # We have a compiler and we are in a native configuration, bootstrap is ok
1722   yes:$build:$build:yes | yes:$build:$build:lean)
1723     ;;
1724
1725   # Other configurations, but we have a compiler.  Assume the user knows
1726   # what he's doing.
1727   yes:*:*:yes | yes:*:*:lean)
1728     AC_MSG_WARN([trying to bootstrap a cross compiler])
1729     ;;
1730
1731   # No compiler: if they passed --enable-bootstrap explicitly, fail
1732   no:*:*:yes | no:*:*:lean)
1733     AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1734
1735   # Fail if wrong command line
1736   *)
1737     AC_MSG_ERROR([invalid option for --enable-bootstrap])
1738     ;;
1739 esac
1740
1741 # Adjust the toplevel makefile according to whether bootstrap was selected.
1742 case "$enable_bootstrap" in
1743   yes)
1744     bootstrap_lean='#'
1745     default_target=bootstrap
1746     bootstrap_suffix=bootstrap ;;
1747   lean)
1748     bootstrap_lean=''
1749     default_target=bootstrap
1750     bootstrap_suffix=bootstrap ;;
1751   no)
1752     default_target=all
1753     bootstrap_suffix=no-bootstrap ;;
1754 esac
1755 AC_SUBST(bootstrap_lean)
1756 AC_SUBST(default_target)
1757
1758 for module in ${build_configdirs} ; do
1759   if test -z "${no_recursion}" \
1760      && test -f ${build_subdir}/${module}/Makefile; then
1761     echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
1762     rm -f ${build_subdir}/${module}/Makefile
1763   fi
1764   extrasub="$extrasub
1765 /^@if build-$module\$/d
1766 /^@endif build-$module\$/d
1767 /^@if build-$module-$bootstrap_suffix\$/d
1768 /^@endif build-$module-$bootstrap_suffix\$/d"
1769 done
1770 for module in ${configdirs} ; do
1771   if test -z "${no_recursion}" \
1772      && test -f ${module}/Makefile; then
1773     echo 1>&2 "*** removing ${module}/Makefile to force reconfigure"
1774     rm -f ${module}/Makefile
1775   fi
1776   extrasub="$extrasub
1777 /^@if $module\$/d
1778 /^@endif $module\$/d
1779 /^@if $module-$bootstrap_suffix\$/d
1780 /^@endif $module-$bootstrap_suffix\$/d"
1781 done
1782 for module in ${target_configdirs} ; do
1783   if test -z "${no_recursion}" \
1784      && test -f ${target_subdir}/${module}/Makefile; then
1785     echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
1786     rm -f ${target_subdir}/${module}/Makefile
1787   fi
1788   extrasub="$extrasub
1789 /^@if target-$module\$/d
1790 /^@endif target-$module\$/d
1791 /^@if target-$module-$bootstrap_suffix\$/d
1792 /^@endif target-$module-$bootstrap_suffix\$/d"
1793 done
1794
1795 extrasub="$extrasub
1796 /^@if /,/^@endif /d"
1797
1798 # Create the serialization dependencies.  This uses a temporary file.
1799
1800 AC_ARG_ENABLE([serial-configure],
1801 [  --enable-serial-[{host,target,build}-]configure
1802                           Force sequential configuration of
1803                           sub-packages for the host, target or build
1804                           machine, or all sub-packages])
1805
1806 case ${enable_serial_configure} in
1807   yes)
1808     enable_serial_build_configure=yes
1809     enable_serial_host_configure=yes
1810     enable_serial_target_configure=yes
1811     ;;
1812 esac
1813
1814 # These force 'configure's to be done one at a time, to avoid problems
1815 # with contention over a shared config.cache.
1816 rm -f serdep.tmp
1817 echo '# serdep.tmp' > serdep.tmp
1818 olditem=
1819 test "x${enable_serial_build_configure}" = xyes &&
1820 for item in ${build_configdirs} ; do
1821   case ${olditem} in
1822     "") ;;
1823     *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
1824   esac
1825   olditem=${item}
1826 done
1827 olditem=
1828 test "x${enable_serial_host_configure}" = xyes &&
1829 for item in ${configdirs} ; do
1830   case ${olditem} in
1831     "") ;;
1832     *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
1833   esac
1834   olditem=${item}
1835 done
1836 olditem=
1837 test "x${enable_serial_target_configure}" = xyes &&
1838 for item in ${target_configdirs} ; do
1839   case ${olditem} in
1840     "") ;;
1841     *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
1842   esac
1843   olditem=${item}
1844 done
1845 serialization_dependencies=serdep.tmp
1846 AC_SUBST_FILE(serialization_dependencies)
1847
1848 # Base args.  Strip norecursion, cache-file, srcdir, host, build,
1849 # target and nonopt.  These are the ones we might not want to pass
1850 # down to subconfigures.  Also strip program-prefix, program-suffix,
1851 # and program-transform-name, so that we can pass down a consistent
1852 # program-transform-name.  If autoconf has put single quotes around
1853 # any of these arguments (because they contain shell metacharacters)
1854 # then this will fail; in practice this only happens for
1855 # --program-transform-name, so be sure to override --program-transform-name
1856 # at the end of the argument list.
1857 # These will be expanded by make, so quote '$'.
1858 cat <<\EOF_SED > conftestsed
1859 s/ --no[[^ ]]*/ /g
1860 s/ --c[[a-z-]]*[[= ]][[^ ]]*//g
1861 s/ --sr[[a-z-]]*[[= ]][[^ ]]*//g
1862 s/ --ho[[a-z-]]*[[= ]][[^ ]]*//g
1863 s/ --bu[[a-z-]]*[[= ]][[^ ]]*//g
1864 s/ --t[[a-z-]]*[[= ]][[^ ]]*//g
1865 s/ --program-[[pst]][[a-z-]]*[[= ]][[^ ]]*//g
1866 s/ -cache-file[[= ]][[^ ]]*//g
1867 s/ -srcdir[[= ]][[^ ]]*//g
1868 s/ -host[[= ]][[^ ]]*//g
1869 s/ -build[[= ]][[^ ]]*//g
1870 s/ -target[[= ]][[^ ]]*//g
1871 s/ -program-prefix[[= ]][[^ ]]*//g
1872 s/ -program-suffix[[= ]][[^ ]]*//g
1873 s/ -program-transform-name[[= ]][[^ ]]*//g
1874 s/ [[^' -][^ ]*] / /
1875 s/^ *//;s/ *$//
1876 s,\$,$$,g
1877 EOF_SED
1878 sed -f conftestsed <<EOF_SED > conftestsed.out
1879  ${ac_configure_args}
1880 EOF_SED
1881 baseargs=`cat conftestsed.out`
1882 rm -f conftestsed conftestsed.out
1883
1884 # Add in --program-transform-name, after --program-prefix and
1885 # --program-suffix have been applied to it.  Autoconf has already
1886 # doubled dollar signs and backslashes in program_transform_name; we want
1887 # the backslashes un-doubled, and then the entire thing wrapped in single
1888 # quotes, because this will be expanded first by make and then by the shell.
1889 # Also, because we want to override the logic in subdir configure scripts to
1890 # choose program_transform_name, replace any s,x,x, with s,y,y,.
1891 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
1892 ${program_transform_name}
1893 EOF_SED
1894 gcc_transform_name=`cat conftestsed.out`
1895 rm -f conftestsed.out
1896 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
1897
1898 # For the build-side libraries, we just need to pretend we're native,
1899 # and not use the same cache file.  Multilibs are neither needed nor
1900 # desired.
1901 build_configargs="--cache-file=../config.cache --build=${build_alias} --host=${build_alias} --target=${target_alias} ${baseargs}"
1902
1903 # For host modules, accept cache file option, or specification as blank.
1904 case "${cache_file}" in
1905 "") # empty
1906   cache_file_option="" ;;
1907 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
1908   cache_file_option="--cache-file=${cache_file}" ;;
1909 *) # relative path
1910   cache_file_option="--cache-file=../${cache_file}" ;;
1911 esac
1912
1913 # Host dirs don't like to share a cache file either, horribly enough.
1914 # This seems to be due to autoconf 2.5x stupidity.
1915 host_configargs="--cache-file=./config.cache --build=${build_alias} --host=${host_alias} --target=${target_alias} ${extra_host_args} ${baseargs}"
1916
1917 target_configargs=${baseargs}
1918
1919 # Passing a --with-cross-host argument lets the target libraries know
1920 # whether they are being built with a cross-compiler or being built
1921 # native.  However, it would be better to use other mechanisms to make the
1922 # sorts of decisions they want to make on this basis.  Please consider
1923 # this option to be deprecated.  FIXME.
1924 if test x${is_cross_compiler} = xyes ; then
1925   target_configargs="--with-cross-host=${host_alias} ${target_configargs}"
1926 fi
1927
1928 # Default to --enable-multilib.
1929 if test x${enable_multilib} = x ; then
1930   target_configargs="--enable-multilib ${target_configargs}"
1931 fi
1932
1933 # Pass --with-newlib if appropriate.  Note that target_configdirs has
1934 # changed from the earlier setting of with_newlib.
1935 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
1936   target_configargs="--with-newlib ${target_configargs}"
1937 fi
1938
1939 # Different target subdirs use different values of certain variables
1940 # (notably CXX).  Worse, multilibs use *lots* of different values.
1941 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
1942 # it doesn't automatically accept command-line overrides of them.
1943 # This means it's not safe for target subdirs to share a cache file,
1944 # which is disgusting, but there you have it.  Hopefully this can be
1945 # fixed in future.  It's still worthwhile to use a cache file for each
1946 # directory.  I think.
1947
1948 # Pass the appropriate --host, --build, and --cache-file arguments.
1949 target_configargs="--cache-file=./config.cache --host=${target_alias} --build=${build_alias} ${target_configargs}"
1950
1951 FLAGS_FOR_TARGET=
1952 case " $target_configdirs " in
1953  *" newlib "*)
1954   case " $target_configargs " in
1955   *" --with-newlib "*)
1956    case "$target" in
1957    *-cygwin*)
1958      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' ;;
1959    esac
1960
1961    # If we're not building GCC, don't discard standard headers.
1962    if test -d ${srcdir}/gcc; then
1963      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
1964
1965      if test "${build}" != "${host}"; then
1966        # On Canadian crosses, CC_FOR_TARGET will have already been set
1967        # by `configure', so we won't have an opportunity to add -Bgcc/
1968        # to it.  This is right: we don't want to search that directory
1969        # for binaries, but we want the header files in there, so add
1970        # them explicitly.
1971        FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include'
1972
1973        # Someone might think of using the pre-installed headers on
1974        # Canadian crosses, in case the installed compiler is not fully
1975        # compatible with the compiler being built.  In this case, it
1976        # would be better to flag an error than risking having
1977        # incompatible object files being constructed.  We can't
1978        # guarantee that an error will be flagged, but let's hope the
1979        # compiler will do it, when presented with incompatible header
1980        # files.
1981      fi
1982    fi
1983
1984    case "${target}-${is_cross_compiler}" in
1985    i[[3456789]]86-*-linux*-no)
1986       # Here host == target, so we don't need to build gcc,
1987       # so we don't want to discard standard headers.
1988       FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
1989       ;;
1990    *)
1991       # If we're building newlib, use its generic headers last, but search
1992       # for any libc-related directories first (so make it the last -B
1993       # switch).
1994       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
1995       ;;
1996    esac
1997    ;;
1998   esac
1999   ;;
2000 esac
2001
2002 # Allow the user to override the flags for
2003 # our build compiler if desired.
2004 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
2005
2006 # On Canadian crosses, we'll be searching the right directories for
2007 # the previously-installed cross compiler, so don't bother to add
2008 # flags for directories within the install tree of the compiler
2009 # being built; programs in there won't even run.
2010 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
2011   # Search for pre-installed headers if nothing else fits.
2012   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
2013 fi
2014
2015 if test "x${use_gnu_ld}" = x &&
2016    echo " ${configdirs} " | grep " ld " > /dev/null ; then
2017   # Arrange for us to find uninstalled linker scripts.
2018   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
2019 fi
2020
2021 if test "x${CC_FOR_TARGET+set}" = xset; then
2022   :
2023 elif test -d ${srcdir}/gcc; then
2024   CC_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/'
2025 elif test "$host" = "$target"; then
2026   CC_FOR_TARGET='$(CC)'
2027 else
2028   CC_FOR_TARGET=`echo gcc | sed "${program_transform_name}"`
2029 fi
2030 CC_FOR_TARGET=$CC_FOR_TARGET' $(FLAGS_FOR_TARGET)'
2031
2032 if test "x${GCJ_FOR_TARGET+set}" = xset; then
2033   :
2034 elif test -d ${srcdir}/gcc; then
2035   GCJ_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/gcj -B$$r/$(HOST_SUBDIR)/gcc/'
2036 elif test "$host" = "$target"; then
2037   GCJ_FOR_TARGET='gcj'
2038 else
2039   GCJ_FOR_TARGET=`echo gcj | sed "${program_transform_name}"`
2040 fi
2041 GCJ_FOR_TARGET=$GCJ_FOR_TARGET' $(FLAGS_FOR_TARGET)'
2042
2043 if test "x${GFORTRAN_FOR_TARGET+set}" = xset; then
2044   :
2045 elif test -d ${srcdir}/gcc; then
2046   GFORTRAN_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/'
2047 elif test "$host" = "$target"; then
2048   GFORTRAN_FOR_TARGET='gfortran'
2049 else
2050   GFORTRAN_FOR_TARGET=`echo gfortran | sed "${program_transform_name}"`
2051 fi
2052 case $GFORTRAN_FOR_TARGET in
2053 *' $(FLAGS_FOR_TARGET)') ;;
2054 *) GFORTRAN_FOR_TARGET=$GFORTRAN_FOR_TARGET' $(FLAGS_FOR_TARGET)' ;;
2055 esac
2056
2057 # Don't use libstdc++-v3's flags to configure/build itself.
2058 libstdcxx_flags='`test ! -f $$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$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs'
2059 raw_libstdcxx_flags='-L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs'
2060
2061 if test "x${CXX_FOR_TARGET+set}" = xset; then
2062   if test "x${RAW_CXX_FOR_TARGET+set}" != xset; then
2063     RAW_CXX_FOR_TARGET=${CXX_FOR_TARGET}
2064   fi
2065 elif test -d ${srcdir}/gcc; then
2066   # We add -shared-libgcc to CXX_FOR_TARGET whenever we use xgcc instead
2067   # of g++ for linking C++ or Java, because g++ has -shared-libgcc by
2068   # default whereas gcc does not.
2069   # RAW_CXX_FOR_TARGET is for linking C++ or java; CXX_FOR_TARGET is for
2070   # all other cases.
2071   CXX_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/g++ -B$$r/$(HOST_SUBDIR)/gcc/ -nostdinc++ '$libstdcxx_flags
2072   RAW_CXX_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc/ -nostdinc++ '$raw_libstdcxx_flags
2073 elif test "$host" = "$target"; then
2074   CXX_FOR_TARGET='$(CXX)'
2075   RAW_CXX_FOR_TARGET=${CXX_FOR_TARGET}
2076 else
2077   CXX_FOR_TARGET=`echo c++ | sed "${program_transform_name}"`
2078   RAW_CXX_FOR_TARGET=${CXX_FOR_TARGET}
2079 fi
2080 CXX_FOR_TARGET=$CXX_FOR_TARGET' $(FLAGS_FOR_TARGET)'
2081 RAW_CXX_FOR_TARGET=$RAW_CXX_FOR_TARGET' $(FLAGS_FOR_TARGET)'
2082
2083 qCXX_FOR_TARGET=`echo "$CXX_FOR_TARGET" | sed 's,[[&%]],\\\&,g'`
2084 qRAW_CXX_FOR_TARGET=`echo "$RAW_CXX_FOR_TARGET" | sed 's,[[&%]],\\\&,g'`
2085
2086 # We want to defer the evaluation of `cmd`s and shell variables in
2087 # CXX_FOR_TARGET when recursing in the top-level Makefile, such as for
2088 # bootstrap.  We'll enclose CXX_FOR_TARGET_FOR_RECURSIVE_MAKE in single
2089 # quotes, but we still have to duplicate `$'s so that shell variables
2090 # can be expanded by the nested make as shell variables, not as make
2091 # macros.
2092 qqCXX_FOR_TARGET=`echo "$qCXX_FOR_TARGET" | sed -e 's,[[$]][[$]],$$$$,g'`
2093 qqRAW_CXX_FOR_TARGET=`echo "$qRAW_CXX_FOR_TARGET" | sed -e 's,[[$]][[$]],$$$$,g'`
2094
2095 # Wrap CC_FOR_TARGET and friends, for certain types of builds.
2096 CC_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${CC_FOR_TARGET}"
2097 GCJ_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${GCJ_FOR_TARGET}"
2098 GFORTRAN_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${GFORTRAN_FOR_TARGET}"
2099 CXX_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${qCXX_FOR_TARGET}"
2100 RAW_CXX_FOR_TARGET="\$(STAGE_CC_WRAPPER) ${qRAW_CXX_FOR_TARGET}"
2101 CXX_FOR_TARGET_FOR_RECURSIVE_MAKE="\$(STAGE_CC_WRAPPER) ${qqCXX_FOR_TARGET}"
2102 RAW_CXX_FOR_TARGET_FOR_RECURSIVE_MAKE="\$(STAGE_CC_WRAPPER) ${qqRAW_CXX_FOR_TARGET}"
2103
2104 # Makefile fragments.
2105 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
2106 do
2107   eval fragval=\$$frag
2108   if test $fragval != /dev/null; then
2109     eval $frag=${srcdir}/$fragval
2110   fi
2111 done
2112 AC_SUBST_FILE(host_makefile_frag)
2113 AC_SUBST_FILE(target_makefile_frag)
2114 AC_SUBST_FILE(alphaieee_frag)
2115 AC_SUBST_FILE(ospace_frag)
2116
2117 # Miscellanea: directories, flags, etc.
2118 AC_SUBST(SET_LIB_PATH)
2119 AC_SUBST(RPATH_ENVVAR)
2120 AC_SUBST(BUILD_PREFIX)
2121 AC_SUBST(BUILD_PREFIX_1)
2122 AC_SUBST(tooldir)
2123 AC_SUBST(build_tooldir)
2124 AC_SUBST(GDB_TK)
2125
2126 # Build module lists & subconfigure args.
2127 AC_SUBST(build_configargs)
2128 AC_SUBST(build_configdirs)
2129
2130 # Host module lists & subconfigure args.
2131 AC_SUBST(host_configargs)
2132 AC_SUBST(configdirs)
2133
2134 # Target module lists & subconfigure args.
2135 AC_SUBST(target_configargs)
2136 AC_SUBST(target_configdirs)
2137
2138 # Build tools.
2139 AC_SUBST(CC_FOR_BUILD)
2140 AC_SUBST(config_shell)
2141
2142 # Host tools.
2143 NCN_STRICT_CHECK_TOOL(AR, ar)
2144 NCN_STRICT_CHECK_TOOL(AS, as)
2145 NCN_STRICT_CHECK_TOOL(DLLTOOL, dlltool)
2146 NCN_STRICT_CHECK_TOOL(LD, ld)
2147 NCN_STRICT_CHECK_TOOL(NM, nm)
2148 NCN_STRICT_CHECK_TOOL(RANLIB, ranlib, :)
2149 NCN_STRICT_CHECK_TOOL(WINDRES, windres)
2150 NCN_STRICT_CHECK_TOOL(OBJCOPY, objcopy)
2151 NCN_STRICT_CHECK_TOOL(OBJDUMP, objdump)
2152 AC_SUBST(CC)
2153 AC_SUBST(CXX)
2154 AC_SUBST(CFLAGS)
2155 AC_SUBST(CFLAGS_FOR_BUILD)
2156 AC_SUBST(CXXFLAGS)
2157
2158 # Target tools.
2159 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_AR_FOR_TARGET, ar)
2160 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_AS_FOR_TARGET, as)
2161 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_DLLTOOL_FOR_TARGET, dlltool)
2162 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_LD_FOR_TARGET, ld)
2163 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_NM_FOR_TARGET, nm)
2164 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_RANLIB_FOR_TARGET, ranlib, :)
2165 NCN_STRICT_CHECK_TARGET_TOOL(CONFIGURED_WINDRES_FOR_TARGET, windres)
2166
2167 AC_SUBST(GCC_FOR_TARGET)
2168 AC_SUBST(FLAGS_FOR_TARGET)
2169 AC_SUBST(CC_FOR_TARGET)
2170 AC_SUBST(GCJ_FOR_TARGET)
2171 AC_SUBST(GFORTRAN_FOR_TARGET)
2172 AC_SUBST(CXX_FOR_TARGET)
2173 AC_SUBST(RAW_CXX_FOR_TARGET)
2174 AC_SUBST(CXX_FOR_TARGET_FOR_RECURSIVE_MAKE)
2175 AC_SUBST(RAW_CXX_FOR_TARGET_FOR_RECURSIVE_MAKE)
2176
2177 # Fix up target tools.
2178 if test "x${build}" = "x${host}" ; then
2179   # In this case, the newly built tools can and should be used,
2180   # so we override the results of the autoconf tests.
2181   # This should really only happen when the tools are actually being built,
2182   # but that's a further refinement.  The new build scheme, where
2183   # tools are built into a structure paralleling where they're installed,
2184   # should also eliminate all of this cleanly.
2185   AR_FOR_TARGET="\$(USUAL_AR_FOR_TARGET)"
2186   AS_FOR_TARGET="\$(USUAL_AS_FOR_TARGET)"
2187   DLLTOOL_FOR_TARGET="\$(USUAL_DLLTOOL_FOR_TARGET)"
2188   LD_FOR_TARGET="\$(USUAL_LD_FOR_TARGET)"
2189   NM_FOR_TARGET="\$(USUAL_NM_FOR_TARGET)"
2190   RANLIB_FOR_TARGET="\$(USUAL_RANLIB_FOR_TARGET)"
2191   WINDRES_FOR_TARGET="\$(USUAL_WINDRES_FOR_TARGET)"
2192 else
2193   # Just use the ones we found.
2194   AR_FOR_TARGET="\$(CONFIGURED_AR_FOR_TARGET)"
2195   AS_FOR_TARGET="\$(CONFIGURED_AS_FOR_TARGET)"
2196   DLLTOOL_FOR_TARGET="\$(CONFIGURED_DLLTOOL_FOR_TARGET)"
2197   LD_FOR_TARGET="\$(CONFIGURED_LD_FOR_TARGET)"
2198   NM_FOR_TARGET="\$(CONFIGURED_NM_FOR_TARGET)"
2199   RANLIB_FOR_TARGET="\$(CONFIGURED_RANLIB_FOR_TARGET)"
2200   WINDRES_FOR_TARGET="\$(CONFIGURED_WINDRES_FOR_TARGET)"
2201 fi
2202 AC_SUBST(AR_FOR_TARGET)
2203 AC_SUBST(AS_FOR_TARGET)
2204 AC_SUBST(DLLTOOL_FOR_TARGET)
2205 AC_SUBST(LD_FOR_TARGET)
2206 AC_SUBST(NM_FOR_TARGET)
2207 AC_SUBST(RANLIB_FOR_TARGET)
2208 AC_SUBST(WINDRES_FOR_TARGET)
2209
2210 # Certain tools may need extra flags.
2211 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
2212 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
2213 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
2214
2215 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2216 AC_ARG_ENABLE(maintainer-mode,
2217 [  --enable-maintainer-mode enable make rules and dependencies not useful
2218                           (and sometimes confusing) to the casual installer],
2219       USE_MAINTAINER_MODE=$enableval,
2220       USE_MAINTAINER_MODE=no)
2221 AC_MSG_RESULT($USE_MAINTAINER_MODE)
2222 AC_SUBST(MAINTAINER_MODE_TRUE)
2223 AC_SUBST(MAINTAINER_MODE_FALSE)
2224 if test "$USE_MAINTAINER_MODE" = yes; then
2225   MAINTAINER_MODE_TRUE=
2226   MAINTAINER_MODE_FALSE='#'
2227 else
2228   MAINTAINER_MODE_TRUE='#'
2229   MAINTAINER_MODE_FALSE=
2230 fi
2231 MAINT=$MAINTAINER_MODE_TRUE
2232 AC_SUBST(MAINT)dnl
2233
2234 # ---------------------
2235 # GCC bootstrap support
2236 # ---------------------
2237
2238 # Stage specific cflags for build.
2239 stage1_cflags="-g"
2240 case $build in
2241   vax-*-*)
2242     case ${GCC} in
2243       yes) stage1_cflags="-g -Wa,-J" ;;
2244       *) stage1_cflags="-g -J" ;;
2245     esac ;;
2246   powerpc-*-darwin*)
2247     # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
2248     # sources; use -no-cpp-precomp to get to GNU cpp.
2249     # Apple's GCC has bugs in designated initializer handling, so disable
2250     # that too.
2251     stage1_cflags="-g -no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
2252     ;;
2253 esac
2254 AC_SUBST(stage1_cflags)
2255
2256 # It makes debugging easier if we create as symlinks the stage directories
2257 # gcc for stageN-gcc and stagePREV-gcc for stage(N-1).  In case this is not
2258 # possible, however, we can resort to mv.
2259 AC_CACHE_CHECK([if symbolic links between directories work],
2260 [gcc_cv_prog_ln_s_dir],
2261 [if test "${LN_S}" = "ln -s" \
2262    && mkdir confdir.s1 \
2263    && ln -s confdir.s1 confdir.s2 \
2264    && echo timestamp1 > confdir.s1/conftest.1 \
2265    && cmp confdir.s1/conftest.1 confdir.s2/conftest.1 \
2266    && echo timestamp2 > confdir.s2/conftest.2 \
2267    && cmp confdir.s1/conftest.2 confdir.s1/conftest.2 \
2268    && rm -f confdir.s2; then
2269   gcc_cv_prog_ln_s_dir=yes
2270 else
2271   gcc_cv_prog_ln_s_dir=no
2272 fi
2273 rm -rf confdir.s1 confdir.s2])
2274
2275 case ${gcc_cv_prog_ln_s_dir} in
2276   yes)
2277     CREATE_LINK_TO_DIR='ln -s $$1 $$2'
2278     UNDO_LINK_TO_DIR='rm -f $$1' ;;
2279   *)
2280     CREATE_LINK_TO_DIR='mv $$1 $$2'
2281     UNDO_LINK_TO_DIR='mv $$1 $$2' ;;
2282 esac
2283 AC_SUBST(CREATE_LINK_TO_DIR)
2284 AC_SUBST(UNDO_LINK_TO_DIR)
2285
2286 # Enable -Werror in bootstrap stage2 and later.
2287 # Change the default to "no" on release branches.
2288 AC_ARG_ENABLE(werror,
2289 [  --enable-werror         enable -Werror in bootstrap stage2 and later], [],
2290 [enable_werror=yes])
2291 case ${enable_werror} in
2292   yes) stage2_werror_flag="--enable-werror-always" ;;
2293   *) stage2_werror_flag="" ;;
2294 esac
2295 AC_SUBST(stage2_werror_flag)
2296
2297 # If gcc is built natively with shared library enabled, set
2298 # $RPATH_ENVVAR to make sure the newly built gcc shared librares are
2299 # used.
2300 SET_GCC_LIB_PATH=
2301 if test -d ${srcdir}/gcc && test x${is_cross_compiler} = xno; then
2302   case "${set_lib_path}" in
2303     no) ;;
2304     *)
2305       eval "d=\$$RPATH_ENVVAR"
2306       if test x"$d" != x; then
2307         d="$pwd/gcc:$d"
2308       else
2309         d="$pwd/gcc"
2310     fi
2311     SET_GCC_LIB_PATH="\$(RPATH_ENVVAR)=$d; export \$(RPATH_ENVVAR);"
2312     ;;
2313   esac
2314 fi
2315 AC_SUBST(SET_GCC_LIB_PATH)
2316
2317 AC_OUTPUT(Makefile)