configure.in

   1 #   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
   2 #   2000, 2001, 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
   3 #
   4 # This file is free software; you can redistribute it and/or modify it
   5 # under the terms of the GNU General Public License as published by
   6 # the Free Software Foundation; either version 2 of the License, or
   7 # (at your option) any later version.
   8 #
   9 # This program is distributed in the hope that it will be useful, but
  10 # WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12 # General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU General Public License
  15 # along with this program; if not, write to the Free Software
  16 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  17
  18 ##############################################################################
  19 ### WARNING: this file contains embedded tabs.  Do not run untabify on this file.
  20
  21 sinclude(config/acx.m4)
  22
  23 AC_INIT(move-if-change)
  24 AC_PREREQ(2.13)
  25 AC_CANONICAL_SYSTEM
  26 AC_ARG_PROGRAM
  27
  28 # Get 'install' or 'install-sh' and its variants.
  29 AC_PROG_INSTALL
  30 ACX_PROG_LN
  31 AC_PROG_LN_S
  32
  33 ### we might need to use some other shell than /bin/sh for running subshells
  34 ### If we are on Windows, search for the shell.  This will permit people
  35 ### to not have /bin/sh, but to be able to see /SOME/PATH/sh configure
  36 ### without also having to set CONFIG_SHELL.  This code will work when
  37 ### using bash, which sets OSTYPE.
  38 case "${OSTYPE}" in
  39 *win32*)
  40   if test x${CONFIG_SHELL} = x ; then
  41     if test ! -f /bin/sh ; then
  42       if test x${SHELL} != x && test -f ${SHELL} ; then
  43         CONFIG_SHELL=${SHELL}
  44         export CONFIG_SHELL
  45       else
  46         for prog in sh sh.exe bash bash.exe; do
  47           IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
  48           for dir in $PATH; do
  49             test -z "$dir" && dir=.
  50             if test -f $dir/$prog; then
  51               CONFIG_SHELL=$dir/$prog
  52               export CONFIG_SHELL
  53               break
  54             fi
  55           done
  56           IFS="$save_ifs"
  57           test -n "${CONFIG_SHELL}" && break
  58         done
  59       fi
  60     fi
  61   fi
  62   ;;
  63 esac
  64
  65 config_shell=${CONFIG_SHELL-/bin/sh}
  66
  67 progname=$0
  68 # if PWD already has a value, it is probably wrong.
  69 if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi
  70
  71 # Export original configure arguments for use by sub-configures.  These
  72 # will be expanded by make, so quote '$'.
  73 tmp="$progname $@"
  74 sed -e 's,\$,$$,g' <<EOF_SED > conftestsed.out
  75 $tmp
  76 EOF_SED
  77 TOPLEVEL_CONFIGURE_ARGUMENTS=`cat conftestsed.out`
  78 rm -f conftestsed.out
  79 AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS)
  80
  81 moveifchange=${srcdir}/move-if-change
  82
  83 srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
  84
  85 # We pass INSTALL explicitly to sub-makes.  Make sure that it is not
  86 # a relative path.
  87 if test "$INSTALL" = "${srcdir}/install-sh -c"; then
  88   INSTALL="${srcpwd}/install-sh -c"
  89 fi
  90
  91 # Set srcdir to "." if that's what it is.
  92 # This is important for multilib support.
  93 pwd=`${PWDCMD-pwd}`
  94 if test "${pwd}" = "${srcpwd}" ; then
  95   srcdir=.
  96 fi
  97
  98 topsrcdir=$srcpwd
  99
 100 extra_host_args=
 101
 102 ### To add a new directory to the tree, first choose whether it is a target
 103 ### or a host dependent tool.  Then put it into the appropriate list
 104 ### (library or tools, host or target), doing a dependency sort.
 105
 106 # Subdirs will be configured in the order listed in build_configdirs,
 107 # configdirs, or target_configdirs; see the serialization section below.
 108
 109 # Dependency sorting is only needed when *configuration* must be done in
 110 # a particular order.  In all cases a dependency should be specified in
 111 # the Makefile, whether or not it's implicitly specified here.
 112
 113 # Double entries in build_configdirs, configdirs, or target_configdirs may
 114 # cause circular dependencies and break everything horribly.
 115
 116 # these library is used by various programs built for the build
 117 # environment
 118 #
 119 build_libs="build-libiberty"
 120
 121 # these tools are built for the build environment
 122 build_tools="build-texinfo build-byacc build-flex build-bison build-m4 build-fixincludes"
 123
 124 # these libraries are used by various programs built for the host environment
 125 #
 126 host_libs="intl mmalloc libiberty opcodes bfd readline tcl tk itcl libgui zlib libcpp libdecnumber"
 127
 128 # these tools are built for the host environment
 129 # Note, the powerpc-eabi build depends on sim occurring before gdb in order to
 130 # know that we are building the simulator.
 131 # binutils, gas and ld appear in that order because it makes sense to run
 132 # "make check" in that particular order.
 133 host_tools="texinfo byacc flex bison binutils gas ld fixincludes gcc sid sim gdb make patch prms send-pr gprof etc expect dejagnu ash bash bzip2 m4 autoconf automake libtool diff rcs fileutils shellutils time textutils wdiff find uudecode hello tar gzip indent recode release sed utils guile perl gawk findutils gettext zip fastjar gnattools"
 134
 135 # libgcj represents the runtime libraries only used by gcj.
 136 libgcj="target-libffi \
 137         target-boehm-gc \
 138         target-zlib \
 139         target-qthreads \
 140         target-libjava"
 141
 142 # these libraries are built for the target environment, and are built after
 143 # the host libraries and the host tools (which may be a cross compiler)
 144 #
 145 target_libraries="target-libiberty \
 146                 target-libgloss \
 147                 target-newlib \
 148                 target-libstdc++-v3 \
 149                 target-libmudflap \
 150                 target-libssp \
 151                 target-libgcc-math \
 152                 target-libgfortran \
 153                 ${libgcj} \
 154                 target-libobjc \
 155                 target-libada \
 156                 target-libgomp"
 157
 158 # these tools are built using the target libraries, and are intended to
 159 # run only in the target environment
 160 #
 161 # note: any program that *uses* libraries that are in the "target_libraries"
 162 # list belongs in this list.  those programs are also very likely
 163 # candidates for the "native_only" list which follows
 164 #
 165 target_tools="target-examples target-groff target-gperf target-rda"
 166
 167 ################################################################################
 168
 169 ## All tools belong in one of the four categories, and are assigned above
 170 ## We assign ${configdirs} this way to remove all embedded newlines.  This
 171 ## is important because configure will choke if they ever get through.
 172 ## ${configdirs} is directories we build using the host tools.
 173 ## ${target_configdirs} is directories we build using the target tools.
 174 configdirs=`echo ${host_libs} ${host_tools}`
 175 target_configdirs=`echo ${target_libraries} ${target_tools}`
 176 build_configdirs=`echo ${build_libs} ${build_tools}`
 177
 178 ################################################################################
 179
 180 srcname="gnu development package"
 181
 182 # This gets set non-empty for some net releases of packages.
 183 appdirs=""
 184
 185 # Define is_cross_compiler to save on calls to 'test'.
 186 is_cross_compiler=
 187 if test x"${host}" = x"${target}" ; then
 188   is_cross_compiler=no
 189 else
 190   is_cross_compiler=yes
 191 fi
 192
 193 # Find the build and target subdir names.
 194 GCC_TOPLEV_SUBDIRS
 195
 196 # Skipdirs are removed silently.
 197 skipdirs=
 198 # Noconfigdirs are removed loudly.
 199 noconfigdirs=""
 200
 201 use_gnu_ld=
 202 # Make sure we don't let GNU ld be added if we didn't want it.
 203 if test x$with_gnu_ld = xno ; then
 204   use_gnu_ld=no
 205   noconfigdirs="$noconfigdirs ld"
 206 fi
 207
 208 use_gnu_as=
 209 # Make sure we don't let GNU as be added if we didn't want it.
 210 if test x$with_gnu_as = xno ; then
 211   use_gnu_as=no
 212   noconfigdirs="$noconfigdirs gas"
 213 fi
 214
 215 # some tools are so dependent upon X11 that if we're not building with X,
 216 # it's not even worth trying to configure, much less build, that tool.
 217
 218 case ${with_x} in
 219   yes | "") ;; # the default value for this tree is that X11 is available
 220   no)
 221     skipdirs="${skipdirs} tk itcl libgui"
 222     # We won't be able to build gdbtk without X.
 223     enable_gdbtk=no
 224     ;;
 225   *)  echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
 226 esac
 227
 228 # Some tools are only suitable for building in a "native" situation.
 229 # Remove these if host!=target.
 230 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"
 231
 232 # Similarly, some are only suitable for cross toolchains.
 233 # Remove these if host=target.
 234 cross_only="target-libgloss target-newlib target-opcodes"
 235
 236 case $is_cross_compiler in
 237   no) skipdirs="${skipdirs} ${cross_only}" ;;
 238   yes) skipdirs="${skipdirs} ${native_only}" ;;
 239 esac
 240
 241 # If both --with-headers and --with-libs are specified, default to
 242 # --without-newlib.
 243 if test x"${with_headers}" != x && test x"${with_headers}" != xno \
 244    && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
 245   if test x"${with_newlib}" = x ; then
 246     with_newlib=no
 247   fi
 248 fi
 249
 250 # Recognize --with-newlib/--without-newlib.
 251 case ${with_newlib} in
 252   no) skipdirs="${skipdirs} target-newlib" ;;
 253   yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
 254 esac
 255
 256 # Configure extra directories which are host specific
 257
 258 case "${host}" in
 259   *-cygwin*)
 260     configdirs="$configdirs libtermcap" ;;
 261 esac
 262
 263 # A target can indicate whether a language isn't supported for some reason.
 264 # Only spaces may be used in this macro; not newlines or tabs.
 265 unsupported_languages=
 266
 267 # Remove more programs from consideration, based on the host or
 268 # target this usually means that a port of the program doesn't
 269 # exist yet.
 270
 271 case "${host}" in
 272   hppa*64*-*-*)
 273     noconfigdirs="$noconfigdirs byacc"
 274     ;;
 275   i[[3456789]]86-*-vsta)
 276     noconfigdirs="$noconfigdirs tcl expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff guile perl itcl gnuserv gettext"
 277     ;;
 278   i[[3456789]]86-*-go32* | i[[3456789]]86-*-msdosdjgpp*)
 279     noconfigdirs="$noconfigdirs tcl tk expect dejagnu send-pr uudecode guile itcl gnuserv libffi"
 280     ;;
 281   i[[3456789]]86-*-mingw32*)
 282     # noconfigdirs="tcl tk expect dejagnu make texinfo bison patch flex byacc send-pr uudecode dejagnu diff guile perl itcl gnuserv"
 283     noconfigdirs="$noconfigdirs expect dejagnu autoconf automake send-pr rcs guile perl texinfo libtool"
 284     ;;
 285   i[[3456789]]86-*-beos*)
 286     noconfigdirs="$noconfigdirs tk itcl libgui gdb"
 287     ;;
 288   *-*-cygwin*)
 289     noconfigdirs="$noconfigdirs autoconf automake send-pr rcs guile perl"
 290     ;;
 291   *-*-netbsd*)
 292     noconfigdirs="$noconfigdirs rcs"
 293     ;;
 294   ppc*-*-pe)
 295     noconfigdirs="$noconfigdirs patch diff make tk tcl expect dejagnu autoconf automake texinfo bison send-pr gprof rcs guile perl itcl gnuserv"
 296     ;;
 297   powerpc-*-beos*)
 298     noconfigdirs="$noconfigdirs tk itcl libgui gdb dejagnu readline"
 299     ;;
 300 esac
 301
 302
 303 AC_ARG_ENABLE(libada,
 304 [  --enable-libada        Builds libada directory],
 305 ENABLE_LIBADA=$enableval,
 306 ENABLE_LIBADA=yes)
 307 if test "${ENABLE_LIBADA}" != "yes" ; then
 308   noconfigdirs="$noconfigdirs gnattools"
 309 fi
 310
 311 AC_ARG_ENABLE(libssp,
 312 [  --enable-libssp        Builds libssp directory],
 313 ENABLE_LIBSSP=$enableval,
 314 ENABLE_LIBSSP=yes)
 315
 316 # Set the default so we build libgcc-math for ix86 and x86_64
 317 AC_ARG_ENABLE(libgcc-math,
 318 [  --enable-libgcc-math   Builds libgcc-math directory],,
 319 [
 320 case "${target}" in
 321   i?86-* | x86_64-* )
 322     enable_libgcc_math=yes ;;
 323   *)
 324     enable_libgcc_math=no ;;
 325 esac
 326 ])
 327
 328 # Save it here so that, even in case of --enable-libgcj, if the Java
 329 # front-end isn't enabled, we still get libgcj disabled.
 330 libgcj_saved=$libgcj
 331 case $enable_libgcj in
 332 yes)
 333   # If we reset it here, it won't get added to noconfigdirs in the
 334   # target-specific build rules, so it will be forcibly enabled
 335   # (unless the Java language itself isn't enabled).
 336   libgcj=
 337   ;;
 338 no)
 339   # Make sure we get it printed in the list of not supported target libs.
 340   noconfigdirs="$noconfigdirs ${libgcj}"
 341   ;;
 342 esac
 343
 344
 345 # Disable libmudflap on some systems.
 346 if test x$enable_libmudflap = x ; then
 347     case "${target}" in
 348     *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
 349         # Enable libmudflap by default in GNU and friends.
 350         ;;
 351     *-*-freebsd*)
 352         # Enable libmudflap by default in FreeBSD.
 353         ;;
 354     *)
 355         # Disable it by default everywhere else.
 356         noconfigdirs="$noconfigdirs target-libmudflap"
 357         ;;
 358     esac
 359 fi
 360
 361 # Disable libgomp on non POSIX hosted systems.
 362 if test x$enable_libgomp = x ; then
 363     # Enable libgomp by default on hosted POSIX systems.
 364     case "${target}" in
 365     *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
 366         ;;
 367     *-*-netbsd* | *-*-freebsd* | *-*-openbsd*)
 368         ;;
 369     *-*-solaris2* | *-*-sysv4* | *-*-irix* | *-*-osf* | *-*-hpux*)
 370         ;;
 371     *-*-darwin* | *-*-aix*)
 372         ;;
 373     *)
 374         noconfigdirs="$noconfigdirs target-libgomp"
 375         ;;
 376     esac
 377 fi
 378
 379
 380 case "${target}" in
 381   *-*-chorusos)
 382     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 383     ;;
 384   powerpc-*-darwin*)
 385     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes gdb gprof"
 386     noconfigdirs="$noconfigdirs sim target-rda"
 387     ;;
 388   *-*-darwin*)
 389     noconfigdirs="$noconfigdirs ld gas gdb gprof"
 390     noconfigdirs="$noconfigdirs sim target-rda"
 391     noconfigdirs="$noconfigdirs ${libgcj}"
 392     ;;
 393   *-*-freebsd[[12]] | *-*-freebsd[[12]].* | *-*-freebsd*aout*)
 394     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 395     ;;
 396   *-*-freebsd*)
 397     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 398     if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
 399         && test -f /usr/local/include/gmp.h; then
 400       with_gmp=/usr/local
 401     fi
 402
 403     # Skip some stuff that's unsupported on some FreeBSD configurations.
 404     case "${target}" in
 405       i*86-*-*) ;;
 406       alpha*-*-*) ;;
 407       *)
 408         noconfigdirs="$noconfigdirs ${libgcj}"
 409         ;;
 410     esac
 411     ;;
 412   *-*-kaos*)
 413     # Remove unsupported stuff on all kaOS configurations.
 414     skipdirs="target-libiberty ${libgcj} target-libstdc++-v3 target-librx"
 415     skipdirs="$skipdirs target-libobjc target-examples target-groff target-gperf"
 416     skipdirs="$skipdirs zlib fastjar target-libjava target-boehm-gc target-zlib"
 417     noconfigdirs="$noconfigdirs target-libgloss"
 418     ;;
 419   *-*-netbsd*)
 420     # Skip some stuff on all NetBSD configurations.
 421     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss"
 422
 423     # Skip some stuff that's unsupported on some NetBSD configurations.
 424     case "${target}" in
 425       i*86-*-netbsdelf*) ;;
 426       arm*-*-netbsdelf*) ;;
 427       *)
 428         noconfigdirs="$noconfigdirs ${libgcj}"
 429         ;;
 430     esac
 431     ;;
 432   *-*-netware*)
 433     noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss ${libgcj} target-libmudflap"
 434     ;;
 435   *-*-rtems*)
 436     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 437     ;;
 438     # The tpf target doesn't support gdb yet.
 439   *-*-tpf*)
 440     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty ${libgcj} target-libmudflap gdb tcl tk libgui itcl"
 441     ;;
 442   *-*-uclinux*)
 443     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-rda ${libgcj}"
 444     ;;
 445   *-*-vxworks*)
 446     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty target-libstdc++-v3 ${libgcj}"
 447     ;;
 448   m32c-*-*)
 449     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 450     ;;
 451   alpha*-dec-osf*)
 452     # ld works, but does not support shared libraries.
 453     # newlib is not 64 bit ready.  I'm not sure about fileutils.
 454     # gas doesn't generate exception information.
 455     noconfigdirs="$noconfigdirs gas ld fileutils target-newlib target-libgloss"
 456     ;;
 457   alpha*-*-*vms*)
 458     noconfigdirs="$noconfigdirs gdb ld target-newlib target-libgloss ${libgcj}"
 459     ;;
 460   alpha*-*-linux*)
 461     # newlib is not 64 bit ready
 462     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 463     ;;
 464   alpha*-*-*)
 465     # newlib is not 64 bit ready
 466     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 467     ;;
 468   am33_2.0-*-linux*)
 469     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 470     ;;
 471   sh-*-linux*)
 472     noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
 473     ;;
 474   sh*-*-pe|mips*-*-pe|*arm-wince-pe)
 475     noconfigdirs="$noconfigdirs ${libgcj}"
 476     noconfigdirs="$noconfigdirs target-examples"
 477     noconfigdirs="$noconfigdirs target-libiberty texinfo send-pr"
 478     noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
 479     noconfigdirs="$noconfigdirs expect dejagnu"
 480     # the C++ libraries don't build on top of CE's C libraries
 481     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 482     noconfigdirs="$noconfigdirs target-newlib"
 483     case "${host}" in
 484       *-*-cygwin*) ;; # keep gdb and readline
 485       *) noconfigdirs="$noconfigdirs gdb readline"
 486          ;;
 487     esac
 488     ;;
 489   arc-*-*)
 490     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 491     ;;
 492   arm-semi-aof )
 493     ;;
 494   arm-*-coff | strongarm-*-coff | xscale-*-coff)
 495     noconfigdirs="$noconfigdirs ${libgcj}"
 496     ;;
 497   arm-*-elf* | strongarm-*-elf* | xscale-*-elf* | arm*-*-eabi* )
 498     noconfigdirs="$noconfigdirs target-libffi target-qthreads"
 499     ;;
 500   arm*-*-linux-gnueabi)
 501     noconfigdirs="$noconfigdirs target-libffi target-qthreads"
 502     noconfigdirs="$noconfigdirs target-libjava target-libobjc"
 503     ;;
 504   arm*-*-symbianelf*)
 505     noconfigdirs="$noconfigdirs ${libgcj} target-libiberty"
 506     ;;
 507   arm-*-pe*)
 508     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 509     ;;
 510   thumb-*-coff)
 511     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 512     ;;
 513   thumb-*-elf)
 514     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 515     ;;
 516   thumb-*-pe)
 517     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 518     ;;
 519   arm-*-riscix*)
 520     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 521     ;;
 522   avr-*-*)
 523     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 524     ;;
 525   bfin-*-*)
 526     noconfigdirs="$noconfigdirs target-libgloss gdb"
 527     if test x${is_cross_compiler} != xno ; then
 528       target_configdirs="${target_configdirs} target-bsp target-cygmon"
 529     fi
 530     ;;
 531   c4x-*-* | tic4x-*-*)
 532     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 533     ;;
 534   c54x*-*-* | tic54x-*-*)
 535     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj} gcc gdb newlib"
 536     ;;
 537   cris-*-* | crisv32-*-*)
 538     unsupported_languages="$unsupported_languages java"
 539     case "${target}" in
 540       *-*-aout)
 541         unsupported_languages="$unsupported_languages fortran"
 542         noconfigdirs="$noconfigdirs target-libffi target-boehm-gc";;
 543       *-*-elf)
 544         unsupported_languages="$unsupported_languages fortran"
 545         noconfigdirs="$noconfigdirs target-boehm-gc";;
 546       *-*-linux*)
 547         noconfigdirs="$noconfigdirs target-newlib target-libgloss";;
 548       *)
 549         unsupported_languages="$unsupported_languages fortran"
 550         noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss";;
 551     esac
 552     ;;
 553   crx-*-*)
 554     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-mudflap ${libgcj}"
 555     ;;
 556   d10v-*-*)
 557     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 558     ;;
 559   d30v-*-*)
 560     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 561     ;;
 562   fr30-*-elf*)
 563     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 564     ;;
 565   frv-*-*)
 566     noconfigdirs="$noconfigdirs ${libgcj}"
 567     ;;
 568   h8300*-*-*)
 569     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 570     ;;
 571   h8500-*-*)
 572     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 573     ;;
 574   hppa1.1-*-osf* | hppa1.1-*-bsd* )
 575     ;;
 576   hppa*64*-*-linux* | parisc*64*-*-linux*)
 577     # In this case, it's because the hppa64-linux target is for
 578     # the kernel only at this point and has no libc, and thus no
 579     # headers, crt*.o, etc., all of which are needed by these.
 580     noconfigdirs="$noconfigdirs target-zlib"
 581     ;;
 582   parisc*-*-linux* | hppa*-*-linux*)
 583     ;;
 584   hppa*-*-*elf* | \
 585   hppa*-*-lites* | \
 586   hppa*-*-openbsd* | \
 587   hppa*64*-*-*)
 588     noconfigdirs="$noconfigdirs ${libgcj}"
 589     ;;
 590   hppa*-*-*)
 591     # According to Alexandre Oliva <aoliva@redhat.com>, libjava won't
 592     # build on HP-UX 10.20.
 593     noconfigdirs="$noconfigdirs ld shellutils ${libgcj}"
 594     ;;
 595   i960-*-*)
 596     noconfigdirs="$noconfigdirs ${libgcj} gdb"
 597     ;;
 598   ia64*-*-elf*)
 599     # No gdb support yet.
 600     noconfigdirs="$noconfigdirs readline mmalloc libgui itcl gdb"
 601     ;;
 602   ia64*-**-hpux*)
 603     # No gdb or ld support yet.
 604     noconfigdirs="$noconfigdirs ${libgcj} readline mmalloc libgui itcl gdb ld"
 605     ;;
 606   i370-*-opened*)
 607     ;;
 608   i[[3456789]]86-*-coff | i[[3456789]]86-*-elf)
 609     noconfigdirs="$noconfigdirs ${libgcj}"
 610     ;;
 611   i[[3456789]]86-*-linux*)
 612     # The GCC port for glibc1 has no MD_FALLBACK_FRAME_STATE_FOR, so let's
 613     # not build java stuff by default.
 614     case "${target}" in
 615       *-*-*libc1*)
 616         noconfigdirs="$noconfigdirs ${libgcj}";;
 617     esac
 618
 619     # This section makes it possible to build newlib natively on linux.
 620     # If we are using a cross compiler then don't configure newlib.
 621     if test x${is_cross_compiler} != xno ; then
 622       noconfigdirs="$noconfigdirs target-newlib"
 623     fi
 624     noconfigdirs="$noconfigdirs target-libgloss"
 625     # If we are not using a cross compiler, do configure newlib.
 626     # Note however, that newlib will only be configured in this situation
 627     # if the --with-newlib option has been given, because otherwise
 628     # 'target-newlib' will appear in skipdirs.
 629     ;;
 630   i[[3456789]]86-*-mingw32*)
 631     target_configdirs="$target_configdirs target-mingw"
 632     noconfigdirs="$noconfigdirs expect target-libgloss ${libgcj}"
 633
 634     # Can't build gdb for mingw32 if not native.
 635     case "${host}" in
 636       i[[3456789]]86-*-mingw32) ;; # keep gdb tcl tk expect etc.
 637       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl gnuserv"
 638          ;;
 639     esac
 640     ;;
 641   *-*-cygwin*)
 642     target_configdirs="$target_configdirs target-libtermcap target-winsup"
 643     noconfigdirs="$noconfigdirs target-gperf target-libgloss ${libgcj}"
 644     # always build newlib if winsup directory is present.
 645     if test -d "$srcdir/winsup"; then
 646       skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 647     elif test -d "$srcdir/newlib"; then
 648       echo "Warning: winsup is missing so newlib can't be built."
 649     fi
 650
 651     # Can't build gdb for Cygwin if not native.
 652     case "${host}" in
 653       *-*-cygwin*) ;; # keep gdb tcl tk expect etc.
 654       *) noconfigdirs="$noconfigdirs gdb tcl tk expect itcl libgui gnuserv"
 655          ;;
 656     esac
 657     ;;
 658   i[[3456789]]86-moss-msdos | i[[3456789]]86-*-moss* | \
 659   i[[3456789]]86-*-uwin* | i[[3456789]]86-*-interix* )
 660     ;;
 661   i[[3456789]]86-*-pe)
 662     noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
 663     ;;
 664   i[[3456789]]86-*-sco3.2v5*)
 665     # The linker does not yet know about weak symbols in COFF,
 666     # and is not configured to handle mixed ELF and COFF.
 667     noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
 668     ;;
 669   i[[3456789]]86-*-sco*)
 670     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 671     ;;
 672   i[[3456789]]86-*-solaris2*)
 673     noconfigdirs="$noconfigdirs target-libgloss"
 674     ;;
 675   i[[3456789]]86-*-sysv4*)
 676     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 677     ;;
 678   i[[3456789]]86-*-beos*)
 679     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 680     ;;
 681   i[[3456789]]86-*-rdos*)
 682     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 683     ;;
 684   m32r-*-*)
 685     noconfigdirs="$noconfigdirs ${libgcj}"
 686     ;;
 687   m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
 688     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 689     ;;
 690   m68k-*-elf*)
 691     noconfigdirs="$noconfigdirs ${libgcj}"
 692     ;;
 693   m68k-*-coff*)
 694     noconfigdirs="$noconfigdirs ${libgcj}"
 695     ;;
 696   mcore-*-pe*)
 697   # The EPOC C++ environment does not support exceptions or rtti,
 698   # and so building libstdc++-v3 tends not to always work.
 699     noconfigdirs="$noconfigdirs target-libstdc++-v3"
 700     ;;
 701   mmix-*-*)
 702     noconfigdirs="$noconfigdirs target-libffi target-boehm-gc gdb libgloss"
 703     unsupported_languages="$unsupported_languages fortran java"
 704     ;;
 705   mn10200-*-*)
 706     noconfigdirs="$noconfigdirs ${libgcj}"
 707     ;;
 708   mn10300-*-*)
 709     noconfigdirs="$noconfigdirs ${libgcj}"
 710     ;;
 711   mt-*-*)
 712     noconfigdirs="$noconfigdirs sim"
 713     ;;
 714   powerpc-*-aix*)
 715     # copied from rs6000-*-* entry
 716     noconfigdirs="$noconfigdirs gprof target-libgloss target-libssp ${libgcj}"
 717     ;;
 718   powerpc*-*-winnt* | powerpc*-*-pe* | ppc*-*-pe)
 719     target_configdirs="$target_configdirs target-winsup"
 720     noconfigdirs="$noconfigdirs gdb tcl tk make expect target-libgloss itcl gnuserv ${libgcj}"
 721     # always build newlib.
 722     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 723     ;;
 724     # This is temporary until we can link against shared libraries
 725   powerpcle-*-solaris*)
 726     noconfigdirs="$noconfigdirs gdb sim make tcl tk expect itcl gnuserv ${libgcj}"
 727     ;;
 728   powerpc-*-beos*)
 729     noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
 730     ;;
 731   powerpc-*-eabi)
 732     noconfigdirs="$noconfigdirs ${libgcj}"
 733     ;;
 734   powerpc-*-eabi* | powerpcle-*-eabi* | powerpc-*-rtems* )
 735     ;;
 736   rs6000-*-lynxos*)
 737     noconfigdirs="$noconfigdirs target-newlib gprof ${libgcj}"
 738     ;;
 739   rs6000-*-aix*)
 740     noconfigdirs="$noconfigdirs gprof target-libgloss target-libssp ${libgcj}"
 741     ;;
 742   rs6000-*-*)
 743     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 744     ;;
 745   m68k-apollo-*)
 746     noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss ${libgcj}"
 747     ;;
 748   mips*-*-irix5*)
 749     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 750     ;;
 751   mips*-*-irix6*)
 752     # Linking libjava exceeds command-line length limits on at least
 753     # IRIX 6.2, but not on IRIX 6.5.
 754     # Also, boehm-gc won't build on IRIX 6.5, according to Jeffrey Oldham
 755     # <oldham@codesourcery.com>
 756     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 757     ;;
 758   mips*-dec-bsd*)
 759     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 760     ;;
 761   mips*-*-bsd*)
 762     noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
 763     ;;
 764   mipstx39-*-*)
 765     noconfigdirs="$noconfigdirs gprof ${libgcj}"   # same as generic mips
 766     ;;
 767   mips64*-*-linux*)
 768     noconfigdirs="$noconfigdirs target-newlib ${libgcj}"
 769     ;;
 770   mips*-*-linux*)
 771     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 772     ;;
 773   mips*-*-*)
 774     noconfigdirs="$noconfigdirs gprof ${libgcj}"
 775     ;;
 776   romp-*-*)
 777     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes target-libgloss ${libgcj}"
 778     ;;
 779   sh-*-* | sh64-*-*)
 780     case "${host}" in
 781       i[[3456789]]86-*-vsta) ;; # don't add gprof back in
 782       i[[3456789]]86-*-go32*) ;; # don't add gprof back in
 783       i[[3456789]]86-*-msdosdjgpp*) ;; # don't add gprof back in
 784       *) skipdirs=`echo " ${skipdirs} " | sed -e 's/ gprof / /'` ;;
 785     esac
 786     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 787     ;;
 788   sparc-*-elf*)
 789     noconfigdirs="$noconfigdirs ${libgcj}"
 790     ;;
 791   sparc64-*-elf*)
 792     noconfigdirs="$noconfigdirs ${libgcj}"
 793     ;;
 794   sparclite-*-*)
 795     noconfigdirs="$noconfigdirs ${libgcj}"
 796     ;;
 797   sparc-*-sunos4*)
 798     noconfigdirs="$noconfigdirs ${libgcj}"
 799     if test x${is_cross_compiler} != xno ; then
 800            noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
 801     else
 802            use_gnu_ld=no
 803     fi
 804     ;;
 805   sparc-*-solaris2.[[0-6]] | sparc-*-solaris2.[[0-6]].*)
 806     noconfigdirs="$noconfigdirs ${libgcj}"
 807     ;;
 808   sparc-*-solaris* | sparc64-*-solaris* | sparcv9-*-solaris*)
 809     ;;
 810   v810-*-*)
 811     noconfigdirs="$noconfigdirs bfd binutils gas gcc gdb ld target-libstdc++-v3 opcodes target-libgloss ${libgcj}"
 812     ;;
 813   v850-*-*)
 814     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 815     ;;
 816   v850e-*-*)
 817     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 818     ;;
 819   v850ea-*-*)
 820     noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
 821     ;;
 822   vax-*-vms)
 823     noconfigdirs="$noconfigdirs bfd binutils gdb ld target-newlib opcodes target-libgloss ${libgcj}"
 824     ;;
 825   vax-*-*)
 826     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 827     ;;
 828   xtensa-*-*)
 829     noconfigdirs="$noconfigdirs ${libgcj}"
 830     ;;
 831   ip2k-*-*)
 832     noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
 833     ;;
 834   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
 835     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 836     ;;
 837   *-*-lynxos*)
 838     noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
 839     ;;
 840   *-*-*)
 841     noconfigdirs="$noconfigdirs ${libgcj}"
 842     ;;
 843 esac
 844
 845 # If we aren't building newlib, then don't build libgloss, since libgloss
 846 # depends upon some newlib header files.
 847 case "${noconfigdirs}" in
 848   *target-libgloss*) ;;
 849   *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
 850 esac
 851
 852 # Work in distributions that contain no compiler tools, like Autoconf.
 853 tentative_cc=""
 854 host_makefile_frag=/dev/null
 855 if test -d ${srcdir}/config ; then
 856 case "${host}" in
 857   m68k-hp-hpux*)
 858     # Avoid "too much defining" errors from HPUX compiler.
 859     tentative_cc="cc -Wp,-H256000"
 860     # If "ar" in $PATH is GNU ar, the symbol table may need rebuilding.
 861     # If it's HP/UX ar, this should be harmless.
 862     RANLIB="ar ts"
 863     ;;
 864   m68k-apollo-sysv*)
 865     tentative_cc="cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DUSG"
 866     ;;
 867   m68k-apollo-bsd*)
 868     #None of the Apollo compilers can compile gas or binutils.  The preprocessor
 869     # chokes on bfd, the compiler won't let you assign integers to enums, and
 870     # other problems.  Defining CC to gcc is a questionable way to say "don't use
 871     # the apollo compiler" (the preferred version of GCC could be called cc,
 872     # or whatever), but I'm not sure leaving CC as cc is any better...
 873     #CC=cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DNO_STDARG
 874     # Used to have BISON=yacc.
 875     tentative_cc=gcc
 876     ;;
 877   m88k-dg-dgux*)
 878     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 879     ;;
 880   m88k-harris-cxux*)
 881     # Under CX/UX, we want to tell the compiler to use ANSI mode.
 882     tentative_cc="cc -Xa"
 883     host_makefile_frag="config/mh-cxux"
 884     ;;
 885   m88k-motorola-sysv*)
 886     ;;
 887   mips*-dec-ultrix*)
 888     tentative_cc="cc -Wf,-XNg1000"
 889     host_makefile_frag="config/mh-decstation"
 890     ;;
 891   mips*-nec-sysv4*)
 892     # The C compiler on NEC MIPS SVR4 needs bigger tables.
 893     tentative_cc="cc -ZXNd=5000 -ZXNg=1000"
 894     host_makefile_frag="config/mh-necv4"
 895     ;;
 896   mips*-sgi-irix4*)
 897     # Tell compiler to use K&R C.  We can't compile under the SGI Ansi
 898     # environment.  Also bump switch table size so that cp-parse will
 899     # compile.  Bump string length limit so linker builds.
 900     tentative_cc="cc -cckr -Wf,-XNg1500 -Wf,-XNk1000 -Wf,-XNh2000 -Wf,-XNl8192"
 901     ;;
 902   mips*-*-sysv4*)
 903     host_makefile_frag="config/mh-sysv4"
 904     ;;
 905   mips*-*-sysv*)
 906     # This is for a MIPS running RISC/os 4.52C.
 907
 908     # This is needed for GDB, but needs to be in the top-level make because
 909     # if a library is compiled with the bsd headers and gets linked with the
 910     # sysv system libraries all hell can break loose (e.g. a jmp_buf might be
 911     # a different size).
 912     # ptrace(2) apparently has problems in the BSD environment.  No workaround is
 913     # known except to select the sysv environment.  Could we use /proc instead?
 914     # These "sysv environments" and "bsd environments" often end up being a pain.
 915     #
 916     # This is not part of CFLAGS because perhaps not all C compilers have this
 917     # option.
 918     tentative_cc="cc -systype sysv"
 919     ;;
 920   i370-ibm-opened*)
 921     tentative_cc="c89"
 922     ;;
 923   i[[3456789]]86-*-sysv5*)
 924     host_makefile_frag="config/mh-sysv5"
 925     ;;
 926   i[[3456789]]86-*-dgux*)
 927     tentative_cc="gcc -Wall -ansi -D__using_DGUX"
 928     host_makefile_frag="config/mh-dgux386"
 929     ;;
 930   i[[3456789]]86-ncr-sysv4.3*)
 931     # The MetaWare compiler will generate a copyright message unless you
 932     # turn it off by adding the -Hnocopyr flag.
 933     tentative_cc="cc -Hnocopyr"
 934     ;;
 935   i[[3456789]]86-ncr-sysv4*)
 936     # for an NCR 3000 (i486/SVR4) system.
 937     # The NCR 3000 ships with a MetaWare compiler installed as /bin/cc.
 938     # This compiler not only emits obnoxious copyright messages every time
 939     # you run it, but it chokes and dies on a whole bunch of GNU source
 940     # files.  Default to using the AT&T compiler installed in /usr/ccs/ATT/cc.
 941     tentative_cc="/usr/ccs/ATT/cc"
 942     host_makefile_frag="config/mh-ncr3000"
 943     ;;
 944   i[[3456789]]86-*-sco3.2v5*)
 945     ;;
 946   i[[3456789]]86-*-sco*)
 947     # The native C compiler botches some simple uses of const.  Unfortunately,
 948     # it doesn't defined anything like "__sco__" for us to test for in ansidecl.h.
 949     tentative_cc="cc -Dconst="
 950     host_makefile_frag="config/mh-sco"
 951     ;;
 952   i[[3456789]]86-*-udk*)
 953     host_makefile_frag="config/mh-sysv5"
 954     ;;
 955   i[[3456789]]86-*-solaris2*)
 956     host_makefile_frag="config/mh-sysv4"
 957     ;;
 958   i[[3456789]]86-*-msdosdjgpp*)
 959     host_makefile_frag="config/mh-djgpp"
 960     ;;
 961   *-cygwin*)
 962     host_makefile_frag="config/mh-cygwin"
 963     ;;
 964   *-mingw32*)
 965     ;;
 966   *-interix*)
 967     host_makefile_frag="config/mh-interix"
 968     ;;
 969   vax-*-ultrix2*)
 970     # The old BSD pcc isn't up to compiling parts of gdb so use gcc
 971     tentative_cc=gcc
 972     ;;
 973   *-*-solaris2*)
 974     host_makefile_frag="config/mh-solaris"
 975     ;;
 976   m68k-sun-sunos*)
 977     # Sun's C compiler needs the -J flag to be able to compile cp-parse.c
 978     # without overflowing the jump tables (-J says to use a 32 bit table)
 979     tentative_cc="cc -J"
 980     ;;
 981   *-hp-hpux*)
 982     tentative_cc="cc -Wp,-H256000"
 983     ;;
 984   *-*-hiux*)
 985     tentative_cc="cc -Wp,-H256000"
 986     ;;
 987   rs6000-*-lynxos*)
 988     # /bin/cc is less than useful for our purposes.  Always use GCC
 989     tentative_cc="/usr/cygnus/progressive/bin/gcc"
 990     host_makefile_frag="config/mh-lynxrs6k"
 991     ;;
 992   powerpc-*-darwin*)
 993     host_makefile_frag="config/mh-ppc-darwin"
 994     ;;
 995   powerpc-*-aix*)
 996     host_makefile_frag="config/mh-ppc-aix"
 997     ;;
 998   rs6000-*-aix*)
 999     host_makefile_frag="config/mh-ppc-aix"
1000     ;;
1001   *-*-lynxos*)
1002     # /bin/cc is less than useful for our purposes.  Always use GCC
1003     tentative_cc="/bin/gcc"
1004     ;;
1005   *-*-sysv4*)
1006     host_makefile_frag="config/mh-sysv4"
1007     ;;
1008   # This is placed last to prevent interfering with the cases above.
1009   i[[3456789]]86-*-*)
1010     # Build the stage2 and stage3 compilers with -fomit-frame-pointer.
1011     host_makefile_frag="config/mh-x86omitfp"
1012     ;;
1013 esac
1014 fi
1015
1016 # If we aren't going to be using gcc, see if we can extract a definition
1017 # of CC from the fragment.
1018 # Actually, use the 'pre-extracted' version above.
1019 if test -z "${CC}" && test "${build}" = "${host}" ; then
1020   IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
1021   found=
1022   for dir in $PATH; do
1023     test -z "$dir" && dir=.
1024     if test -f $dir/gcc; then
1025       found=yes
1026       break
1027     fi
1028   done
1029   IFS="$save_ifs"
1030   if test -z "${found}" && test -n "${tentative_cc}" ; then
1031     CC=$tentative_cc
1032   fi
1033 fi
1034
1035 if test "${build}" != "${host}" ; then
1036   # If we are doing a Canadian Cross, in which the host and build systems
1037   # are not the same, we set reasonable default values for the tools.
1038
1039   CC=${CC-${host_alias}-gcc}
1040   CFLAGS=${CFLAGS-"-g -O2"}
1041   CXX=${CXX-${host_alias}-c++}
1042   CXXFLAGS=${CXXFLAGS-"-g -O2"}
1043   CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1044
1045 else
1046   # Set reasonable default values for some tools even if not Canadian.
1047   # Of course, these are different reasonable default values, originally
1048   # specified directly in the Makefile.
1049   # We don't export, so that autoconf can do its job.
1050   # Note that all these settings are above the fragment inclusion point
1051   # in Makefile.in, so can still be overridden by fragments.
1052   # This is all going to change when we autoconfiscate...
1053
1054   CC_FOR_BUILD="\$(CC)"
1055   AC_PROG_CC
1056
1057   # We must set the default linker to the linker used by gcc for the correct
1058   # operation of libtool.  If LD is not defined and we are using gcc, try to
1059   # set the LD default to the ld used by gcc.
1060   if test -z "$LD"; then
1061     if test "$GCC" = yes; then
1062       case $build in
1063       *-*-mingw*)
1064         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1065       *)
1066         gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1067       esac
1068       case $gcc_prog_ld in
1069       # Accept absolute paths.
1070       [[\\/]* | [A-Za-z]:[\\/]*)]
1071         LD="$gcc_prog_ld" ;;
1072       esac
1073     fi
1074   fi
1075
1076   CXX=${CXX-"c++"}
1077   CFLAGS=${CFLAGS-"-g"}
1078   CXXFLAGS=${CXXFLAGS-"-g -O2"}
1079 fi
1080
1081 ACX_PROG_GNAT
1082 ACX_PROG_CMP_IGNORE_INITIAL
1083
1084 # Check for GMP and MPFR
1085 gmplibs=
1086 gmpinc=
1087 have_gmp=yes
1088 # Specify a location for mpfr
1089 # check for this first so it ends up on the link line before gmp.
1090 AC_ARG_WITH(mpfr-dir, [  --with-mpfr-dir=PATH    Specify source directory for MPFR library])
1091
1092 if test "x$with_mpfr_dir" != x; then
1093   gmpinc="-I$with_mpfr_dir"
1094   gmplibs="$with_mpfr_dir/libmpfr.a"
1095 else
1096   gmplibs="-lmpfr"
1097 fi
1098
1099 AC_ARG_WITH(mpfr, [  --with-mpfr=PATH        Specify directory for installed MPFR library])
1100
1101 if test "x$with_mpfr" != x; then
1102   gmplibs="-L$with_mpfr/lib $gmplibs"
1103   gmpinc="-I$with_mpfr/include"
1104 fi
1105
1106 # Specify a location for gmp
1107 AC_ARG_WITH(gmp-dir, [  --with-gmp-dir=PATH     Specify source directory for GMP library])
1108
1109 if test "x$with_gmp_dir" != x; then
1110   gmpinc="$gmpinc -I$with_gmp_dir"
1111   if test -f "$with_gmp_dir/.libs/libgmp.a"; then
1112     gmplibs="$gmplibs $with_gmp_dir/.libs/libgmp.a"
1113   elif test -f "$with_gmp_dir/_libs/libgmp.a"; then
1114     gmplibs="$gmplibs $with_gmp_dir/_libs/libgmp.a"
1115   fi
1116   # One of the later tests will catch the error if neither library is present.
1117 else
1118   gmplibs="$gmplibs -lgmp"
1119 fi
1120
1121 AC_ARG_WITH(gmp, [  --with-gmp=PATH         Specify directory for installed GMP library])
1122
1123 if test "x$with_gmp" != x; then
1124   gmplibs="-L$with_gmp/lib $gmplibs"
1125   gmpinc="-I$with_gmp/include $gmpinc"
1126 fi
1127
1128 saved_CFLAGS="$CFLAGS"
1129 CFLAGS="$CFLAGS $gmpinc"
1130 # Check GMP actually works
1131 AC_MSG_CHECKING([for correct version of gmp.h])
1132 AC_TRY_COMPILE([#include "gmp.h"],[
1133 #if __GNU_MP_VERSION < 3
1134 choke me
1135 #endif
1136 ], [AC_MSG_RESULT([yes])],
1137   [AC_MSG_RESULT([no]); have_gmp=no])
1138
1139 if test x"$have_gmp" = xyes; then
1140   AC_MSG_CHECKING([for MPFR])
1141
1142   saved_LIBS="$LIBS"
1143   LIBS="$LIBS $gmplibs"
1144   AC_TRY_LINK([#include <gmp.h>
1145 #include <mpfr.h>], [mpfr_t n; mpfr_init(n);],
1146     [AC_MSG_RESULT([yes])],  [AC_MSG_RESULT([no]); have_gmp=no])
1147   LIBS="$saved_LIBS"
1148   CFLAGS="$saved_CFLAGS"
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         boot_language=
1236         build_by_default=
1237         need_gmp=
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 GMP if it isn't available.
1269         case ,${enable_languages},:${have_gmp}:${need_gmp} in
1270           *,${language},*:no:yes)
1271             # Specifically requested language; tell them.
1272             AC_MSG_ERROR([GMP with MPFR support is required to build $language])
1273             ;;
1274           *:no:yes)
1275             # Silently disable.
1276             add_this_lang=no
1277             ;;
1278         esac
1279
1280         # Disable a language that is unsupported by the target.
1281         case " $unsupported_languages " in
1282           *" $language "*)
1283             add_this_lang=no
1284             ;;
1285         esac
1286
1287         case $add_this_lang in
1288           no)
1289             # Remove language-dependent dirs.
1290             eval noconfigdirs='"$noconfigdirs "'\"$target_libs $lang_dirs\"
1291             ;;
1292           *)
1293             new_enable_languages="$new_enable_languages,$language"
1294             missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
1295             case ${boot_language} in
1296               yes)
1297                 # Add to (comma-separated) list of stage 1 languages.
1298                 stage1_languages="${stage1_languages},${language}"
1299                 ;;
1300             esac
1301             ;;
1302         esac
1303         ;;
1304     esac
1305   done
1306
1307   missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
1308   if test "x$missing_languages" != x; then
1309     AC_MSG_ERROR([
1310 The following requested languages could not be built: ${missing_languages}
1311 Recognised languages are: ${potential_languages}])
1312   fi
1313
1314   if test "x$new_enable_languages" != "x$enable_languages"; then
1315     echo The following languages will be built: ${new_enable_languages}
1316   fi
1317   enable_languages="$new_enable_languages"
1318   ac_configure_args=`echo " $ac_configure_args" | sed -e 's/ --enable-languages=[[^ ]]*//' -e 's/$/ --enable-languages='"$enable_languages"/ `
1319 fi
1320
1321 # Handle --disable-<component> generically.
1322 for dir in $configdirs $build_configdirs $target_configdirs ; do
1323   dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
1324   if eval test x\${enable_${dirname}} "=" xno ; then
1325     noconfigdirs="$noconfigdirs $dir"
1326   fi
1327 done
1328
1329 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
1330 # $build_configdirs and $target_configdirs.
1331 # If we have the source for $noconfigdirs entries, add them to $notsupp.
1332
1333 notsupp=""
1334 for dir in . $skipdirs $noconfigdirs ; do
1335   dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
1336   if test $dir != .  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1337     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
1338     if test -r $srcdir/$dirname/configure ; then
1339       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1340         true
1341       else
1342         notsupp="$notsupp $dir"
1343       fi
1344     fi
1345   fi
1346   if test $dir != .  && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1347     build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
1348     if test -r $srcdir/$dirname/configure ; then
1349       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1350         true
1351       else
1352         notsupp="$notsupp $dir"
1353       fi
1354     fi
1355   fi
1356   if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1357     target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
1358     if test -r $srcdir/$dirname/configure ; then
1359       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1360         true
1361       else
1362         notsupp="$notsupp $dir"
1363       fi
1364     fi
1365   fi
1366 done
1367
1368 # Sometimes the tools are distributed with libiberty but with no other
1369 # libraries.  In that case, we don't want to build target-libiberty.
1370 if test -n "${target_configdirs}" ; then
1371   others=
1372   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
1373     if test "$i" != "libiberty" ; then
1374       if test -r $srcdir/$i/configure ; then
1375         others=yes;
1376         break;
1377       fi
1378     fi
1379   done
1380   if test -z "${others}" ; then
1381     target_configdirs=
1382   fi
1383 fi
1384
1385 # Quietly strip out all directories which aren't configurable in this tree.
1386 # This relies on all configurable subdirectories being autoconfiscated, which
1387 # is now the case.
1388 build_configdirs_all="$build_configdirs"
1389 build_configdirs=
1390 for i in ${build_configdirs_all} ; do
1391   j=`echo $i | sed -e s/build-//g`
1392   if test -f ${srcdir}/$j/configure ; then
1393     build_configdirs="${build_configdirs} $i"
1394   fi
1395 done
1396
1397 configdirs_all="$configdirs"
1398 configdirs=
1399 for i in ${configdirs_all} ; do
1400   if test -f ${srcdir}/$i/configure ; then
1401     configdirs="${configdirs} $i"
1402   fi
1403 done
1404
1405 target_configdirs_all="$target_configdirs"
1406 target_configdirs=
1407 for i in ${target_configdirs_all} ; do
1408   j=`echo $i | sed -e s/target-//g`
1409   if test -f ${srcdir}/$j/configure ; then
1410     target_configdirs="${target_configdirs} $i"
1411   fi
1412 done
1413
1414 # Produce a warning message for the subdirs we can't configure.
1415 # This isn't especially interesting in the Cygnus tree, but in the individual
1416 # FSF releases, it's important to let people know when their machine isn't
1417 # supported by the one or two programs in a package.
1418
1419 if test -n "${notsupp}" && test -z "${norecursion}" ; then
1420   # If $appdirs is non-empty, at least one of those directories must still
1421   # be configured, or we error out.  (E.g., if the gas release supports a
1422   # specified target in some subdirs but not the gas subdir, we shouldn't
1423   # pretend that all is well.)
1424   if test -n "$appdirs" ; then
1425     for dir in $appdirs ; do
1426       if test -r $dir/Makefile.in ; then
1427         if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1428           appdirs=""
1429           break
1430         fi
1431         if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
1432           appdirs=""
1433           break
1434         fi
1435       fi
1436     done
1437     if test -n "$appdirs" ; then
1438       echo "*** This configuration is not supported by this package." 1>&2
1439       exit 1
1440     fi
1441   fi
1442   # Okay, some application will build, or we don't care to check.  Still
1443   # notify of subdirs not getting built.
1444   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
1445   echo "    ${notsupp}" 1>&2
1446   echo "    (Any other directories should still work fine.)" 1>&2
1447 fi
1448
1449 case "$host" in
1450   *msdosdjgpp*)
1451     enable_gdbtk=no ;;
1452 esac
1453
1454 copy_dirs=
1455
1456 AC_ARG_WITH([build-sysroot],
1457   [  --with-build-sysroot=sysroot
1458                           use sysroot as the system root during the build],
1459   [if test x"$withval" != x ; then
1460      SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
1461    fi],
1462   [SYSROOT_CFLAGS_FOR_TARGET=])
1463 AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
1464
1465 # Handle --with-headers=XXX.  If the value is not "yes", the contents of
1466 # the named directory are copied to $(tooldir)/sys-include.
1467 if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
1468   if test x${is_cross_compiler} = xno ; then
1469     echo 1>&2 '***' --with-headers is only supported when cross compiling
1470     exit 1
1471   fi
1472   if test x"${with_headers}" != xyes ; then
1473     case "${exec_prefixoption}" in
1474     "") x=${prefix} ;;
1475     *) x=${exec_prefix} ;;
1476     esac
1477     copy_dirs="${copy_dirs} ${with_headers} $x/${target_alias}/sys-include"
1478   fi
1479 fi
1480
1481 # Handle --with-libs=XXX.  If the value is not "yes", the contents of
1482 # the name directories are copied to $(tooldir)/lib.  Multiple directories
1483 # are permitted.
1484 if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
1485   if test x${is_cross_compiler} = xno ; then
1486     echo 1>&2 '***' --with-libs is only supported when cross compiling
1487     exit 1
1488   fi
1489   if test x"${with_libs}" != xyes ; then
1490     # Copy the libraries in reverse order, so that files in the first named
1491     # library override files in subsequent libraries.
1492     case "${exec_prefixoption}" in
1493     "") x=${prefix} ;;
1494     *) x=${exec_prefix} ;;
1495     esac
1496     for l in ${with_libs}; do
1497       copy_dirs="$l $x/${target_alias}/lib ${copy_dirs}"
1498     done
1499   fi
1500 fi
1501
1502 # Set with_gnu_as and with_gnu_ld as appropriate.
1503 #
1504 # This is done by determining whether or not the appropriate directory
1505 # is available, and by checking whether or not specific configurations
1506 # have requested that this magic not happen.
1507 #
1508 # The command line options always override the explicit settings in
1509 # configure.in, and the settings in configure.in override this magic.
1510 #
1511 # If the default for a toolchain is to use GNU as and ld, and you don't
1512 # want to do that, then you should use the --without-gnu-as and
1513 # --without-gnu-ld options for the configure script.
1514
1515 if test x${use_gnu_as} = x &&
1516    echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
1517   with_gnu_as=yes
1518   extra_host_args="$extra_host_args --with-gnu-as"
1519 fi
1520
1521 if test x${use_gnu_ld} = x &&
1522    echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 ; then
1523   with_gnu_ld=yes
1524   extra_host_args="$extra_host_args --with-gnu-ld"
1525 fi
1526
1527 # If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
1528 # can detect this case.
1529
1530 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
1531   with_newlib=yes
1532   extra_host_args="$extra_host_args --with-newlib"
1533 fi
1534
1535 # Handle ${copy_dirs}
1536 set fnord ${copy_dirs}
1537 shift
1538 while test $# != 0 ; do
1539   if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
1540     :
1541   else
1542     echo Copying $1 to $2
1543
1544     # Use the install script to create the directory and all required
1545     # parent directories.
1546     if test -d $2 ; then
1547       :
1548     else
1549       echo >config.temp
1550       ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
1551     fi
1552
1553     # Copy the directory, assuming we have tar.
1554     # FIXME: Should we use B in the second tar?  Not all systems support it.
1555     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
1556
1557     # It is the responsibility of the user to correctly adjust all
1558     # symlinks.  If somebody can figure out how to handle them correctly
1559     # here, feel free to add the code.
1560
1561     echo $1 > $2/COPIED
1562   fi
1563   shift; shift
1564 done
1565
1566 # Determine a target-dependent exec_prefix that the installed
1567 # gcc will search in.  Keep this list sorted by triplet, with
1568 # the *-*-osname triplets last.
1569 md_exec_prefix=
1570 case "${target}" in
1571   alpha*-*-*vms*)
1572     md_exec_prefix=/gnu/lib/gcc-lib
1573     ;;
1574   i[34567]86-pc-msdosdjgpp*)
1575     md_exec_prefix=/dev/env/DJDIR/bin
1576     ;;
1577   i[34567]86-*-sco3.2v5*)
1578     if test $with_gnu_as = yes; then
1579       md_exec_prefix=/usr/gnu/bin
1580     else
1581       md_exec_prefix=/usr/ccs/bin/elf
1582     fi
1583     ;;
1584
1585   mn10300-*-* | \
1586   powerpc-*-chorusos* | \
1587   powerpc*-*-eabi* | \
1588   powerpc*-*-sysv* | \
1589   powerpc*-*-kaos* | \
1590   s390x-ibm-tpf*)
1591     md_exec_prefix=/usr/ccs/bin
1592     ;;
1593   sparc64-*-elf*)
1594     ;;
1595   v850*-*-*)
1596     md_exec_prefix=/usr/ccs/bin
1597     ;;
1598   xtensa-*-elf*)
1599     ;;
1600
1601   *-*-beos* | \
1602   *-*-elf* | \
1603   *-*-hpux* | \
1604   *-*-netware* | \
1605   *-*-nto-qnx* | \
1606   *-*-rtems* | \
1607   *-*-solaris2* | \
1608   *-*-sysv[45]* | \
1609   *-*-vxworks* | \
1610   *-wrs-windiss)
1611     md_exec_prefix=/usr/ccs/bin
1612     ;;
1613 esac
1614
1615 extra_arflags_for_target=
1616 extra_nmflags_for_target=
1617 extra_ranlibflags_for_target=
1618 target_makefile_frag=/dev/null
1619 case "${target}" in
1620   *-*-netware*)
1621     target_makefile_frag="config/mt-netware"
1622     ;;
1623   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
1624     target_makefile_frag="config/mt-gnu"
1625     ;;
1626   *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
1627     # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm
1628     # commands to handle both 32-bit and 64-bit objects.  These flags are
1629     # harmless if we're using GNU nm or ar.
1630     extra_arflags_for_target=" -X32_64"
1631     extra_nmflags_for_target=" -B -X32_64"
1632     ;;
1633   *-*-darwin*)
1634     # ranlib from Darwin requires the -c flag to look at common symbols.
1635     extra_ranlibflags_for_target=" -c"
1636     ;;
1637   mips*-*-pe | sh*-*-pe | *arm-wince-pe)
1638     target_makefile_frag="config/mt-wince"
1639     ;;
1640 esac
1641
1642 alphaieee_frag=/dev/null
1643 case $target in
1644   alpha*-*-*)
1645     # This just makes sure to use the -mieee option to build target libs.
1646     # This should probably be set individually by each library.
1647     alphaieee_frag="config/mt-alphaieee"
1648     ;;
1649 esac
1650
1651 # If --enable-target-optspace always use -Os instead of -O2 to build
1652 # the target libraries, similarly if it is not specified, use -Os
1653 # on selected platforms.
1654 ospace_frag=/dev/null
1655 case "${enable_target_optspace}:${target}" in
1656   yes:*)
1657     ospace_frag="config/mt-ospace"
1658     ;;
1659   :d30v-*)
1660     ospace_frag="config/mt-d30v"
1661     ;;
1662   :m32r-* | :d10v-* | :fr30-*)
1663     ospace_frag="config/mt-ospace"
1664     ;;
1665   no:* | :*)
1666     ;;
1667   *)
1668     echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
1669     ;;
1670 esac
1671
1672 # Default to using --with-stabs for certain targets.
1673 if test x${with_stabs} = x ; then
1674   case "${target}" in
1675   mips*-*-irix[[56]]*)
1676     ;;
1677   mips*-*-* | alpha*-*-osf*)
1678     with_stabs=yes;
1679     extra_host_args="${extra_host_args} --with-stabs"
1680     ;;
1681   esac
1682 fi
1683
1684 # hpux11 in 64bit mode has libraries in a weird place.  Arrange to find
1685 # them automatically.
1686 case "${host}" in
1687   hppa*64*-*-hpux11*)
1688     extra_host_args="$extra_host_args -x-libraries=/usr/lib/pa20_64 -x-includes=/usr/X11R6/include"
1689     ;;
1690 esac
1691
1692 # Some systems (e.g., one of the i386-aix systems the gas testers are
1693 # using) don't handle "\$" correctly, so don't use it here.
1694 tooldir='${exec_prefix}'/${target_alias}
1695 build_tooldir=${tooldir}
1696
1697 # Create a .gdbinit file which runs the one in srcdir
1698 # and tells GDB to look there for source files.
1699
1700 if test -r ${srcdir}/.gdbinit ; then
1701   case ${srcdir} in
1702     .) ;;
1703     *) cat > ./.gdbinit <<EOF
1704 # ${NO_EDIT}
1705 dir ${srcdir}
1706 dir .
1707 source ${srcdir}/.gdbinit
1708 EOF
1709     ;;
1710   esac
1711 fi
1712
1713 # Make sure that the compiler is able to generate an executable.  If it
1714 # can't, we are probably in trouble.  We don't care whether we can run the
1715 # executable--we might be using a cross compiler--we only care whether it
1716 # can be created.  At this point the main configure script has set CC.
1717 we_are_ok=no
1718 echo "int main () { return 0; }" > conftest.c
1719 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
1720 if test $? = 0 ; then
1721   if test -s conftest || test -s conftest.exe ; then
1722     we_are_ok=yes
1723   fi
1724 fi
1725 case $we_are_ok in
1726   no)
1727     echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
1728     echo 1>&2 "*** You must set the environment variable CC to a working compiler."
1729     rm -f conftest*
1730     exit 1
1731     ;;
1732 esac
1733 rm -f conftest*
1734
1735 # The Solaris /usr/ucb/cc compiler does not appear to work.
1736 case "${host}" in
1737   sparc-sun-solaris2*)
1738       CCBASE="`echo ${CC-cc} | sed 's/ .*$//'`"
1739       if test "`type $CCBASE | sed 's/^[[^/]]*//'`" = "/usr/ucb/cc" ; then
1740           could_use=
1741           test -d /opt/SUNWspro/bin && could_use="/opt/SUNWspro/bin"
1742           if test -d /opt/cygnus/bin ; then
1743               if test "$could_use" = "" ; then
1744                   could_use="/opt/cygnus/bin"
1745               else
1746                   could_use="$could_use or /opt/cygnus/bin"
1747               fi
1748           fi
1749         if test "$could_use" = "" ; then
1750             echo "Warning: compilation may fail because you're using"
1751             echo "/usr/ucb/cc.  You should change your PATH or CC "
1752             echo "variable and rerun configure."
1753         else
1754             echo "Warning: compilation may fail because you're using"
1755             echo "/usr/ucb/cc, when you should use the C compiler from"
1756             echo "$could_use.  You should change your"
1757             echo "PATH or CC variable and rerun configure."
1758         fi
1759       fi
1760   ;;
1761 esac
1762
1763 case "${host}" in
1764   *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
1765   *-*-darwin* | *-*-rhapsody* ) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
1766   *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
1767 esac
1768
1769 # Record target_configdirs and the configure arguments for target and
1770 # build configuration in Makefile.
1771 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
1772 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
1773
1774 # Determine whether gdb needs tk/tcl or not.
1775 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
1776 # and in that case we want gdb to be built without tk.  Ugh!
1777 # In fact I believe gdb is the *only* package directly dependent on tk,
1778 # so we should be able to put the 'maybe's in unconditionally and
1779 # leave out the maybe dependencies when enable_gdbtk is false.  I'm not
1780 # 100% sure that that's safe though.
1781
1782 gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
1783 case "$enable_gdbtk" in
1784   no)
1785     GDB_TK="" ;;
1786   yes)
1787     GDB_TK="${gdb_tk}" ;;
1788   *)
1789     # Only add the dependency on gdbtk when GDBtk is part of the gdb
1790     # distro.  Eventually someone will fix this and move Insight, nee
1791     # gdbtk to a separate directory.
1792     if test -d ${srcdir}/gdb/gdbtk ; then
1793       GDB_TK="${gdb_tk}"
1794     else
1795       GDB_TK=""
1796     fi
1797     ;;
1798 esac
1799 CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
1800 INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
1801
1802 # Strip out unwanted targets.
1803
1804 # While at that, we remove Makefiles if we were started for recursive
1805 # configuration, so that the top-level Makefile reconfigures them,
1806 # like we used to do when configure itself was recursive.
1807
1808 # Loop over modules.  $extrasub must be used with care, limiting as
1809 # much as possible the usage of range addresses.  That's because autoconf
1810 # splits the sed script to overcome limits in the number of commands,
1811 # and relying on carefully-timed sed passes may turn out to be very hard
1812 # to maintain later.  In this particular case, you just have to be careful
1813 # not to nest @if/@endif pairs, because configure will not warn you at all.
1814
1815 AC_ARG_ENABLE([bootstrap],
1816 [  --enable-bootstrap           Enable bootstrapping [yes if native build]],,
1817 enable_bootstrap=default)
1818
1819 # Issue errors and warnings for invalid/strange bootstrap combinations.
1820 case "$configdirs" in
1821   *gcc*) have_compiler=yes ;;
1822   *) have_compiler=no ;;
1823 esac
1824
1825 case "$have_compiler:$host:$target:$enable_bootstrap" in
1826   *:*:*:no) ;;
1827
1828   # Default behavior.  Enable bootstrap if we have a compiler
1829   # and we are in a native configuration.
1830   yes:$build:$build:default)
1831     enable_bootstrap=yes ;;
1832
1833   *:*:*:default)
1834     enable_bootstrap=no ;;
1835
1836   # We have a compiler and we are in a native configuration, bootstrap is ok
1837   yes:$build:$build:yes)
1838     ;;
1839
1840   # Other configurations, but we have a compiler.  Assume the user knows
1841   # what he's doing.
1842   yes:*:*:yes)
1843     AC_MSG_WARN([trying to bootstrap a cross compiler])
1844     ;;
1845
1846   # No compiler: if they passed --enable-bootstrap explicitly, fail
1847   no:*:*:yes)
1848     AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1849
1850   # Fail if wrong command line
1851   *)
1852     AC_MSG_ERROR([invalid option for --enable-bootstrap])
1853     ;;
1854 esac
1855
1856 # Adjust the toplevel makefile according to whether bootstrap was selected.
1857 case "$enable_bootstrap" in
1858   yes)
1859     bootstrap_suffix=bootstrap ;;
1860   no)
1861     bootstrap_suffix=no-bootstrap ;;
1862 esac
1863
1864 for module in ${build_configdirs} ; do
1865   if test -z "${no_recursion}" \
1866      && test -f ${build_subdir}/${module}/Makefile; then
1867     echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
1868     rm -f ${build_subdir}/${module}/Makefile
1869   fi
1870   extrasub="$extrasub
1871 /^@if build-$module\$/d
1872 /^@endif build-$module\$/d
1873 /^@if build-$module-$bootstrap_suffix\$/d
1874 /^@endif build-$module-$bootstrap_suffix\$/d"
1875 done
1876 for module in ${configdirs} ; do
1877   if test -z "${no_recursion}"; then
1878     for file in stage*-${module}/Makefile ${module}/Makefile; do
1879       if test -f ${file}; then
1880         echo 1>&2 "*** removing ${file} to force reconfigure"
1881         rm -f ${file}
1882       fi
1883     done
1884   fi
1885   extrasub="$extrasub
1886 /^@if $module\$/d
1887 /^@endif $module\$/d
1888 /^@if $module-$bootstrap_suffix\$/d
1889 /^@endif $module-$bootstrap_suffix\$/d"
1890 done
1891 for module in ${target_configdirs} ; do
1892   if test -z "${no_recursion}" \
1893      && test -f ${target_subdir}/${module}/Makefile; then
1894     echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
1895     rm -f ${target_subdir}/${module}/Makefile
1896   fi
1897   extrasub="$extrasub
1898 /^@if target-$module\$/d
1899 /^@endif target-$module\$/d
1900 /^@if target-$module-$bootstrap_suffix\$/d
1901 /^@endif target-$module-$bootstrap_suffix\$/d"
1902 done
1903
1904 extrasub="$extrasub
1905 /^@if /,/^@endif /d"
1906
1907 # Create the serialization dependencies.  This uses a temporary file.
1908
1909 AC_ARG_ENABLE([serial-configure],
1910 [  --enable-serial-[{host,target,build}-]configure
1911                           Force sequential configuration of
1912                           sub-packages for the host, target or build
1913                           machine, or all sub-packages])
1914
1915 case ${enable_serial_configure} in
1916   yes)
1917     enable_serial_build_configure=yes
1918     enable_serial_host_configure=yes
1919     enable_serial_target_configure=yes
1920     ;;
1921 esac
1922
1923 # These force 'configure's to be done one at a time, to avoid problems
1924 # with contention over a shared config.cache.
1925 rm -f serdep.tmp
1926 echo '# serdep.tmp' > serdep.tmp
1927 olditem=
1928 test "x${enable_serial_build_configure}" = xyes &&
1929 for item in ${build_configdirs} ; do
1930   case ${olditem} in
1931     "") ;;
1932     *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
1933   esac
1934   olditem=${item}
1935 done
1936 olditem=
1937 test "x${enable_serial_host_configure}" = xyes &&
1938 for item in ${configdirs} ; do
1939   case ${olditem} in
1940     "") ;;
1941     *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
1942   esac
1943   olditem=${item}
1944 done
1945 olditem=
1946 test "x${enable_serial_target_configure}" = xyes &&
1947 for item in ${target_configdirs} ; do
1948   case ${olditem} in
1949     "") ;;
1950     *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
1951   esac
1952   olditem=${item}
1953 done
1954 serialization_dependencies=serdep.tmp
1955 AC_SUBST_FILE(serialization_dependencies)
1956
1957 # Base args.  Strip norecursion, cache-file, srcdir, host, build,
1958 # target and nonopt.  These are the ones we might not want to pass
1959 # down to subconfigures.  Also strip program-prefix, program-suffix,
1960 # and program-transform-name, so that we can pass down a consistent
1961 # program-transform-name.  If autoconf has put single quotes around
1962 # any of these arguments (because they contain shell metacharacters)
1963 # then this will fail; in practice this only happens for
1964 # --program-transform-name, so be sure to override --program-transform-name
1965 # at the end of the argument list.
1966 # These will be expanded by make, so quote '$'.
1967 cat <<\EOF_SED > conftestsed
1968 s/ --no[[^ ]]*/ /g
1969 s/ --c[[a-z-]]*[[= ]][[^ ]]*//g
1970 s/ --sr[[a-z-]]*[[= ]][[^ ]]*//g
1971 s/ --ho[[a-z-]]*[[= ]][[^ ]]*//g
1972 s/ --bu[[a-z-]]*[[= ]][[^ ]]*//g
1973 s/ --t[[a-z-]]*[[= ]][[^ ]]*//g
1974 s/ --program-[[pst]][[a-z-]]*[[= ]][[^ ]]*//g
1975 s/ -cache-file[[= ]][[^ ]]*//g
1976 s/ -srcdir[[= ]][[^ ]]*//g
1977 s/ -host[[= ]][[^ ]]*//g
1978 s/ -build[[= ]][[^ ]]*//g
1979 s/ -target[[= ]][[^ ]]*//g
1980 s/ -program-prefix[[= ]][[^ ]]*//g
1981 s/ -program-suffix[[= ]][[^ ]]*//g
1982 s/ -program-transform-name[[= ]][[^ ]]*//g
1983 s/ [[^' -][^ ]*] / /
1984 s/^ *//;s/ *$//
1985 s,\$,$$,g
1986 EOF_SED
1987 sed -f conftestsed <<EOF_SED > conftestsed.out
1988  ${ac_configure_args}
1989 EOF_SED
1990 baseargs=`cat conftestsed.out`
1991 rm -f conftestsed conftestsed.out
1992
1993 # Add in --program-transform-name, after --program-prefix and
1994 # --program-suffix have been applied to it.  Autoconf has already
1995 # doubled dollar signs and backslashes in program_transform_name; we want
1996 # the backslashes un-doubled, and then the entire thing wrapped in single
1997 # quotes, because this will be expanded first by make and then by the shell.
1998 # Also, because we want to override the logic in subdir configure scripts to
1999 # choose program_transform_name, replace any s,x,x, with s,y,y,.
2000 sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
2001 ${program_transform_name}
2002 EOF_SED
2003 gcc_transform_name=`cat conftestsed.out`
2004 rm -f conftestsed.out
2005 baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
2006
2007 # For the build-side libraries, we just need to pretend we're native,
2008 # and not use the same cache file.  Multilibs are neither needed nor
2009 # desired.
2010 build_configargs="--cache-file=../config.cache --build=${build_alias} --host=${build_alias} --target=${target_alias} ${baseargs}"
2011
2012 # For host modules, accept cache file option, or specification as blank.
2013 case "${cache_file}" in
2014 "") # empty
2015   cache_file_option="" ;;
2016 /* | [[A-Za-z]]:[[\\/]]* ) # absolute path
2017   cache_file_option="--cache-file=${cache_file}" ;;
2018 *) # relative path
2019   cache_file_option="--cache-file=../${cache_file}" ;;
2020 esac
2021
2022 # Host dirs don't like to share a cache file either, horribly enough.
2023 # This seems to be due to autoconf 2.5x stupidity.
2024 host_configargs="--cache-file=./config.cache --build=${build_alias} --host=${host_alias} --target=${target_alias} ${extra_host_args} ${baseargs}"
2025
2026 target_configargs=${baseargs}
2027
2028 # Passing a --with-cross-host argument lets the target libraries know
2029 # whether they are being built with a cross-compiler or being built
2030 # native.  However, it would be better to use other mechanisms to make the
2031 # sorts of decisions they want to make on this basis.  Please consider
2032 # this option to be deprecated.  FIXME.
2033 if test x${is_cross_compiler} = xyes ; then
2034   target_configargs="--with-cross-host=${host_alias} ${target_configargs}"
2035 fi
2036
2037 # Default to --enable-multilib.
2038 if test x${enable_multilib} = x ; then
2039   target_configargs="--enable-multilib ${target_configargs}"
2040 fi
2041
2042 # Pass --with-newlib if appropriate.  Note that target_configdirs has
2043 # changed from the earlier setting of with_newlib.
2044 if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
2045   target_configargs="--with-newlib ${target_configargs}"
2046 fi
2047
2048 # Different target subdirs use different values of certain variables
2049 # (notably CXX).  Worse, multilibs use *lots* of different values.
2050 # Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
2051 # it doesn't automatically accept command-line overrides of them.
2052 # This means it's not safe for target subdirs to share a cache file,
2053 # which is disgusting, but there you have it.  Hopefully this can be
2054 # fixed in future.  It's still worthwhile to use a cache file for each
2055 # directory.  I think.
2056
2057 # Pass the appropriate --build, --host, --target and --cache-file arguments.
2058 # We need to pass --target, as newer autoconf's requires consistency
2059 # for target_alias and gcc doesn't manage it consistently.
2060 target_configargs="--cache-file=./config.cache --build=${build_alias} --host=${target_alias} --target=${target_alias} ${target_configargs}"
2061
2062 FLAGS_FOR_TARGET=
2063 case " $target_configdirs " in
2064  *" newlib "*)
2065   case " $target_configargs " in
2066   *" --with-newlib "*)
2067    case "$target" in
2068    *-cygwin*)
2069      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' ;;
2070    esac
2071
2072    # If we're not building GCC, don't discard standard headers.
2073    if test -d ${srcdir}/gcc; then
2074      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
2075
2076      if test "${build}" != "${host}"; then
2077        # On Canadian crosses, CC_FOR_TARGET will have already been set
2078        # by `configure', so we won't have an opportunity to add -Bgcc/
2079        # to it.  This is right: we don't want to search that directory
2080        # for binaries, but we want the header files in there, so add
2081        # them explicitly.
2082        FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include'
2083
2084        # Someone might think of using the pre-installed headers on
2085        # Canadian crosses, in case the installed compiler is not fully
2086        # compatible with the compiler being built.  In this case, it
2087        # would be better to flag an error than risking having
2088        # incompatible object files being constructed.  We can't
2089        # guarantee that an error will be flagged, but let's hope the
2090        # compiler will do it, when presented with incompatible header
2091        # files.
2092      fi
2093    fi
2094
2095    case "${target}-${is_cross_compiler}" in
2096    i[[3456789]]86-*-linux*-no)
2097       # Here host == target, so we don't need to build gcc,
2098       # so we don't want to discard standard headers.
2099       FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
2100       ;;
2101    *)
2102       # If we're building newlib, use its generic headers last, but search
2103       # for any libc-related directories first (so make it the last -B
2104       # switch).
2105       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
2106       ;;
2107    esac
2108    ;;
2109   esac
2110   ;;
2111 esac
2112
2113 # Allow the user to override the flags for
2114 # our build compiler if desired.
2115 CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
2116
2117 # On Canadian crosses, we'll be searching the right directories for
2118 # the previously-installed cross compiler, so don't bother to add
2119 # flags for directories within the install tree of the compiler
2120 # being built; programs in there won't even run.
2121 if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
2122   # Search for pre-installed headers if nothing else fits.
2123   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
2124 fi
2125
2126 if test "x${use_gnu_ld}" = x &&
2127    echo " ${configdirs} " | grep " ld " > /dev/null ; then
2128   # Arrange for us to find uninstalled linker scripts.
2129   FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
2130 fi
2131
2132 # Makefile fragments.
2133 for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
2134 do
2135   eval fragval=\$$frag
2136   if test $fragval != /dev/null; then
2137     eval $frag=${srcdir}/$fragval
2138   fi
2139 done
2140 AC_SUBST_FILE(host_makefile_frag)
2141 AC_SUBST_FILE(target_makefile_frag)
2142 AC_SUBST_FILE(alphaieee_frag)
2143 AC_SUBST_FILE(ospace_frag)
2144
2145 # Miscellanea: directories, flags, etc.
2146 AC_SUBST(RPATH_ENVVAR)
2147 AC_SUBST(tooldir)
2148 AC_SUBST(build_tooldir)
2149 AC_SUBST(CONFIGURE_GDB_TK)
2150 AC_SUBST(GDB_TK)
2151 AC_SUBST(INSTALL_GDB_TK)
2152
2153 # Build module lists & subconfigure args.
2154 AC_SUBST(build_configargs)
2155 AC_SUBST(build_configdirs)
2156
2157 # Host module lists & subconfigure args.
2158 AC_SUBST(host_configargs)
2159 AC_SUBST(configdirs)
2160
2161 # Target module lists & subconfigure args.
2162 AC_SUBST(target_configargs)
2163
2164
2165 # Build tools.
2166 AC_SUBST(CC_FOR_BUILD)
2167 AC_SUBST(config_shell)
2168
2169 # Generate default definitions for YACC, M4, LEX and other programs that run
2170 # on the build machine.  These are used if the Makefile can't locate these
2171 # programs in objdir.
2172 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
2173
2174 AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
2175 case " $build_configdirs " in
2176   *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
2177   *" byacc "*) YACC='$$r/$(BUILD_SUBDIR)/byacc/byacc' ;;
2178 esac
2179
2180 AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
2181 case " $build_configdirs " in
2182   *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
2183 esac
2184
2185 AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
2186 case " $build_configdirs " in
2187   *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
2188 esac
2189
2190 AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
2191 case " $build_configdirs " in
2192   *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
2193   *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
2194 esac
2195
2196 AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
2197 case " $build_configdirs " in
2198   *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
2199 esac
2200
2201 AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
2202 case " $build_configdirs " in
2203   *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
2204   *)
2205 changequote(,)
2206     # For an installed makeinfo, we require it to be from texinfo 4.4 or
2207     # higher, else we use the "missing" dummy.
2208     if ${MAKEINFO} --version \
2209        | egrep 'texinfo[^0-9]*([1-3][0-9]|4\.[4-9]|[5-9])' >/dev/null 2>&1; then
2210       :
2211     else
2212       MAKEINFO="$MISSING makeinfo"
2213     fi
2214     ;;
2215 changequote([,])
2216 esac
2217
2218 # FIXME: expect and dejagnu may become build tools?
2219
2220 AC_CHECK_PROGS(EXPECT, expect, expect)
2221 case " $configdirs " in
2222   *" expect "*)
2223     test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
2224     ;;
2225 esac
2226
2227 AC_CHECK_PROGS(RUNTEST, runtest, runtest)
2228 case " $configdirs " in
2229   *" dejagnu "*)
2230     test $host = $build && RUNTEST='$$r/$(HOST_SUBDIR)/dejagnu/runtest'
2231     ;;
2232 esac
2233
2234
2235 # Host tools.
2236 NCN_STRICT_CHECK_TOOLS(AR, ar)
2237 NCN_STRICT_CHECK_TOOLS(AS, as)
2238 NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
2239 NCN_STRICT_CHECK_TOOLS(LD, ld)
2240 NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
2241 NCN_STRICT_CHECK_TOOLS(NM, nm)
2242 NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, :)
2243 NCN_STRICT_CHECK_TOOLS(STRIP, strip, :)
2244 NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
2245 NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
2246 NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
2247 AC_SUBST(CC)
2248 AC_SUBST(CXX)
2249 AC_SUBST(CFLAGS)
2250 AC_SUBST(CFLAGS_FOR_BUILD)
2251 AC_SUBST(CXXFLAGS)
2252
2253 # Target tools.
2254 AC_ARG_WITH([build-time-tools],
2255   [  --with-build-time-tools=path
2256                           use given path to find target tools during the build],
2257   [case x"$withval" in
2258      x/*) ;;
2259      *)
2260        with_build_time_tools=
2261        AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
2262        ;;
2263    esac],
2264   [with_build_time_tools=])
2265
2266 NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
2267 NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
2268 NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
2269 NCN_STRICT_CHECK_TARGET_TOOLS(GCJ_FOR_TARGET, gcj)
2270 NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
2271
2272 ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
2273 ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
2274 ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
2275 ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
2276 ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
2277 ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
2278 ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
2279 ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib, :)
2280 ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
2281 ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
2282
2283 RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
2284
2285 GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
2286 GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
2287 GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2288 GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
2289                 [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$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs],
2290                 c++)
2291 GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
2292                 [gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs],
2293                 c++)
2294 GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
2295 GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2296 GCC_TARGET_TOOL(gcj, GCJ_FOR_TARGET, GCJ,
2297                 [gcc/gcj -B$$r/$(HOST_SUBDIR)/gcc/], java)
2298 GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
2299                 [gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
2300 GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
2301 GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
2302 GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
2303 GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
2304 GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
2305 GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip])
2306 GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
2307
2308 AC_SUBST(FLAGS_FOR_TARGET)
2309 AC_SUBST(RAW_CXX_FOR_TARGET)
2310
2311 # Certain tools may need extra flags.
2312 AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
2313 RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
2314 NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
2315
2316 # When building target libraries, except in a Canadian cross, we use
2317 # the same toolchain as the compiler we just built.
2318 COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
2319 COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
2320 COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
2321 if test $host = $build; then
2322   case " $configdirs " in
2323     *" gcc "*)
2324       COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
2325       COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
2326       COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
2327       ;;
2328   esac
2329 fi
2330
2331 AC_SUBST(COMPILER_AS_FOR_TARGET)
2332 AC_SUBST(COMPILER_LD_FOR_TARGET)
2333 AC_SUBST(COMPILER_NM_FOR_TARGET)
2334
2335 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2336 AC_ARG_ENABLE(maintainer-mode,
2337 [  --enable-maintainer-mode enable make rules and dependencies not useful
2338                           (and sometimes confusing) to the casual installer],
2339       USE_MAINTAINER_MODE=$enableval,
2340       USE_MAINTAINER_MODE=no)
2341 AC_MSG_RESULT($USE_MAINTAINER_MODE)
2342 AC_SUBST(MAINTAINER_MODE_TRUE)
2343 AC_SUBST(MAINTAINER_MODE_FALSE)
2344 if test "$USE_MAINTAINER_MODE" = yes; then
2345   MAINTAINER_MODE_TRUE=
2346   MAINTAINER_MODE_FALSE='#'
2347 else
2348   MAINTAINER_MODE_TRUE='#'
2349   MAINTAINER_MODE_FALSE=
2350 fi
2351 MAINT=$MAINTAINER_MODE_TRUE
2352 AC_SUBST(MAINT)dnl
2353
2354 # ---------------------
2355 # GCC bootstrap support
2356 # ---------------------
2357
2358 # Stage specific cflags for build.
2359 stage1_cflags="-g"
2360 case $build in
2361   vax-*-*)
2362     case ${GCC} in
2363       yes) stage1_cflags="-g -Wa,-J" ;;
2364       *) stage1_cflags="-g -J" ;;
2365     esac ;;
2366   powerpc-*-darwin*)
2367     # The spiffy cpp-precomp chokes on some legitimate constructs in GCC
2368     # sources; use -no-cpp-precomp to get to GNU cpp.
2369     # Apple's GCC has bugs in designated initializer handling, so disable
2370     # that too.
2371     stage1_cflags="-g -no-cpp-precomp -DHAVE_DESIGNATED_INITIALIZERS=0"
2372     ;;
2373 esac
2374 AC_SUBST(stage1_cflags)
2375
2376 # Enable -Werror in bootstrap stage2 and later.
2377 # Change the default to "no" on release branches.
2378 AC_ARG_ENABLE(werror,
2379 [  --enable-werror         enable -Werror in bootstrap stage2 and later], [],
2380 [enable_werror=yes])
2381 case ${enable_werror} in
2382   yes) stage2_werror_flag="--enable-werror-always" ;;
2383   *) stage2_werror_flag="" ;;
2384 esac
2385 AC_SUBST(stage2_werror_flag)
2386
2387 # Flags needed to enable html installing and building
2388 AC_ARG_WITH(datarootdir,
2389 [  --with-datarootdir   Use datarootdir as the data root directory.],
2390 [datarootdir="\${prefix}/${withval}"],
2391 [datarootdir="\${prefix}/share"])
2392
2393 AC_ARG_WITH(docdir,
2394 [  --with-docdir        Install documentation in this directory.],
2395 [docdir="\${prefix}/${withval}"],
2396 [docdir="\${datarootdir}/doc"])
2397
2398 AC_ARG_WITH(htmldir,
2399 [  --with-htmldir       Install html in this directory.],
2400 [htmldir="\${prefix}/${withval}"],
2401 [htmldir="\${docdir}"])
2402
2403 AC_SUBST(datarootdir)
2404 AC_SUBST(docdir)
2405 AC_SUBST(htmldir)
2406
2407 AC_OUTPUT(Makefile)