configure

   1 #!/bin/sh
   2
   3 ### WARNING: this file contains embedded tabs.  Do not run untabify on this file.
   4
   5 # Configuration script
   6 # Copyright (C) 1988, 90, 91, 92, 93, 94 Free Software Foundation, Inc.
   7
   8 # This program is free software; you can redistribute it and/or modify
   9 # it under the terms of the GNU General Public License as published by
  10 # the Free Software Foundation; either version 2 of the License, or
  11 # (at your option) any later version.
  12 #
  13 # This program is distributed in the hope that it will be useful,
  14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 # GNU General Public License for more details.
  17 #
  18 # You should have received a copy of the GNU General Public License
  19 # along with this program; if not, write to the Free Software
  20 # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21
  22 # Please email any bugs, comments, and/or additions to this file to:
  23 # configure@cygnus.com
  24
  25 # This file was written by K. Richard Pixley.
  26
  27 #
  28 # Shell script to create proper links to machine-dependent files in
  29 # preparation for compilation.
  30 #
  31 # If configure succeeds, it leaves its status in config.status.
  32 # If configure fails after disturbing the status quo,
  33 #       config.status is removed.
  34 #
  35
  36 export PATH || (echo "OOPS, this isn't sh.  Desperation time.  I will feed myself to sh."; sh $0 $argv; kill $$)
  37
  38 remove=rm
  39 hard_link=ln
  40 symbolic_link='ln -s'
  41
  42 #for Test
  43 #remove="echo rm"
  44 #hard_link="echo ln"
  45 #symbolic_link="echo ln -s"
  46
  47 # clear some things potentially inherited from environment.
  48
  49 Makefile=Makefile
  50 Makefile_in=Makefile.in
  51 arguments=$*
  52 build_alias=
  53 configdirs=
  54 exec_prefix=
  55 exec_prefixoption=
  56 fatal=
  57 floating_point=default
  58 gas=default
  59 host_alias=NOHOST
  60 host_makefile_frag=
  61 moveifchange=
  62 norecursion=
  63 other_options=
  64 package_makefile_frag=
  65 prefix=/usr/local
  66 progname=
  67 program_prefix=
  68 program_prefixoption=
  69 program_suffix=
  70 program_suffixoption=
  71 program_transform_name=
  72 program_transform_nameoption=
  73 redirect=">/dev/null"
  74 removing=
  75 site=
  76 site_makefile_frag=
  77 site_option=
  78 srcdir=
  79 srctrigger=
  80 subdirs=
  81 target_alias=NOTARGET
  82 target_makefile_frag=
  83 undefs=NOUNDEFS
  84 version="$Revision$"
  85 x11=default
  86
  87 ### we might need to use some other shell than /bin/sh for running subshells
  88 #
  89 config_shell=${CONFIG_SHELL-/bin/sh}
  90
  91 NO_EDIT="This file was generated automatically by configure.  Do not edit."
  92
  93 ## this is a little touchy and won't always work, but...
  94 ##
  95 ## if the argv[0] starts with a slash then it is an absolute name that can (and
  96 ## must) be used as is.
  97 ##
  98 ## otherwise, if argv[0] has no slash in it, we can assume that it is on the
  99 ## path.  Since PATH might include "." we also add `pwd` to the end of PATH.
 100 ##
 101
 102 progname=$0
 103 # if PWD already has a value, it is probably wrong.
 104 if [ -n "$PWD" ]; then PWD=`pwd`; fi
 105
 106 case "${progname}" in
 107 /*) ;;
 108 */*) ;;
 109 *)
 110         PATH=$PATH:${PWD=`pwd`} ; export PATH
 111         ;;
 112 esac
 113
 114 # Loop over all args
 115
 116 while :
 117 do
 118
 119 # Break out if there are no more args
 120         case $# in
 121         0)
 122                 break
 123                 ;;
 124         esac
 125
 126 # Get the first arg, and shuffle
 127         option=$1
 128         shift
 129
 130 # Make all options have two hyphens
 131         orig_option=$option     # Save original for error messages
 132         case $option in
 133         --*) ;;
 134         -*) option=-$option ;;
 135         esac
 136
 137 # Split out the argument for options that take them
 138         case $option in
 139         --*=*)
 140                 optarg=`echo $option | sed -e 's/^[^=]*=//'`
 141                 ;;
 142 # These options have mandatory values.  Since we didn't find an = sign,
 143 # the value must be in the next argument
 144         --b* | --ex* | --ho* | --pre* | --program-p* | --program-s* | --program-t* | --si* | --sr* | --ta* | --tm* | --x-*)
 145                 optarg=$1
 146                 shift
 147                 ;;
 148         esac
 149
 150 # Now, process the options
 151         case $option in
 152
 153         --build* | --b*)
 154                 case "$build_alias" in
 155                 "") build_alias=$optarg ;;
 156                 *) echo '***' Can only configure for one build machine at a time.  1>&2
 157                    fatal=yes
 158                    ;;
 159                 esac
 160                 ;;
 161         --disable-*)
 162                 enableopt=`echo ${option} | sed 's:^--disable-:enable_:;s:-:_:g'`
 163                 eval $enableopt=no
 164                 disableoptions="$disableoptions $option"
 165                 ;;
 166         --enable-*)
 167                 case "$option" in
 168                 *=*)    ;;
 169                 *)      optarg=yes ;;
 170                 esac
 171
 172                 enableopt=`echo ${option} | sed 's:^--::;s:=.*$::;s:-:_:g'`
 173                 eval $enableopt="$optarg"
 174                 enableoptions="$enableoptions $option"
 175                 ;;
 176         --exec-prefix* | --ex*)
 177                 exec_prefix=$optarg
 178                 exec_prefixoption="--exec-prefix=$optarg"
 179                 ;;
 180         --gas | --g*)
 181                 gas=yes
 182                 ;;
 183         --help | --he*)
 184                 fatal=yes
 185                 ;;
 186         --host* | --ho*)
 187                 case $host_alias in
 188                 NOHOST) host_alias=$optarg ;;
 189                 *) echo '***' Can only configure for one host at a time.  1>&2
 190                    fatal=yes
 191                    ;;
 192                 esac
 193                 ;;
 194         --nfp | --nf*)
 195                 floating_point=no
 196                 ;;
 197         --norecursion | --no*)
 198                 norecursion=yes
 199                 ;;
 200         --prefix* | --pre*)
 201                 prefix=$optarg
 202                 prefixoption="--prefix=$optarg"
 203                 ;;
 204         --program-prefix* | --program-p*)
 205                 program_prefix=$optarg
 206                 program_prefixoption="--program-prefix=$optarg"
 207                 ;;
 208         --program-suffix* | --program-s*)
 209                 program_suffix=$optarg
 210                 program_suffixoption="--program-suffix=$optarg"
 211                 ;;
 212         --program-transform-name* | --program-t*)
 213                 # Double any backslashes or dollar signs in the argument
 214                 program_transform_name="${program_transform_name} -e `echo ${optarg} | sed -e 's/\\\\/\\\\\\\\/g' -e 's/\\\$/$$/g'`"
 215                 program_transform_nameoption="${program_transform_nameoption} --program-transform-name='$optarg'"
 216                 ;;
 217         --rm)
 218                 removing=--rm
 219                 ;;
 220         --silent | --sil* | --quiet | --q*)
 221                 redirect=">/dev/null"
 222                 verbose=--silent
 223                 ;;
 224         --site* | --sit*)
 225                 site=$optarg
 226                 site_option="--site=$optarg"
 227                 ;;
 228         --srcdir*/ | --sr*/)
 229                 # Remove trailing slashes.  Otherwise, when the file name gets
 230                 # bolted into an object file as debug info, it has two slashes
 231                 # in it.  Ordinarily this is ok, but emacs takes double slash
 232                 # to mean "forget the first part".
 233                 srcdir=`echo $optarg | sed -e 's:/$::'`
 234                 ;;
 235         --srcdir* | --sr*)
 236                 srcdir=$optarg
 237                 ;;
 238         --target* | --ta*)
 239                 case $target_alias in
 240                 NOTARGET) target_alias=$optarg ;;
 241                 *) echo '***' Can only configure for one target at a time.  1>&2
 242                    fatal=yes
 243                    ;;
 244                 esac
 245                 ;;
 246         --tmpdir* | --tm*)
 247                 TMPDIR=$optarg
 248                 tmpdiroption="--tmpdir=$optarg"
 249                 ;;
 250         --verbose | --v | --verb*)
 251                 redirect=
 252                 verbose=--verbose
 253                 ;;
 254         --version | --V | --vers*)
 255                 echo "This is Cygnus Configure version" `echo ${version} | sed 's/[ $:]//g'`
 256                 exit 0
 257                 ;;
 258         --with-*)
 259                 case "$option" in
 260                 *=*)    ;;
 261                 *)      optarg=yes ;;
 262                 esac
 263
 264                 withopt=`echo ${option} | sed 's:^--::;s:=.*$::;s:-:_:g'`
 265                 eval $withopt="$optarg"
 266                 withoptions="$withoptions $option"
 267                 ;;
 268         --without-*)
 269                 withopt=`echo ${option} | sed 's:^--::;s:out::;s:-:_:g'`
 270                 eval $withopt=no
 271                 withoutoptions="$withoutoptions $option"
 272                 ;;
 273         --x)    with_x=yes
 274                 withoptions="$withoptions --with-x"
 275                 ;;
 276         --x-i* | --x-l*) other_options="$other_options $orig_option"
 277                 ;;
 278         --*)
 279                 echo "configure: Unrecognized option: \"$orig_option\"; use --help for usage." >&2
 280                 exit 1
 281                 ;;
 282         *)
 283                 case $undefs in
 284                 NOUNDEFS) undefs=$option ;;
 285                 *) echo '***' Can only configure for one host and one target at a time.  1>&2
 286                    fatal=yes
 287                    ;;
 288                 esac
 289                 ;;
 290         esac
 291 done
 292
 293 # process host and target
 294
 295 # Do some error checking and defaulting for the host and target type.
 296 # The inputs are:
 297 #    configure --host=HOST --target=TARGET UNDEFS
 298 #
 299 # The rules are:
 300 # 1. You aren't allowed to specify --host, --target, and undefs at the
 301 #    same time.
 302 # 2. Host defaults to undefs.
 303 # 3. If undefs is not specified, then host defaults to the current host,
 304 #    as determined by config.guess.
 305 # 4. Target defaults to undefs.
 306 # 5. If undefs is not specified, then target defaults to host.
 307
 308 case "${fatal}" in
 309 "")
 310         # Make sure that host, target & undefs aren't all specified at the
 311         # same time.
 312         case $host_alias---$target_alias---$undefs in
 313         NOHOST---*---* | *---NOTARGET---* | *---*---NOUNDEFS)
 314                 ;;
 315         *) echo '***' Can only configure for one host and one target at a time.  1>&2
 316            fatal=yes
 317            break 2
 318                 ;;
 319         esac
 320
 321         # Now, do defaulting for host.
 322         case $host_alias in
 323         NOHOST)
 324                 case $undefs in
 325                 NOUNDEFS)
 326                         # Neither --host option nor undefs were present.
 327                         # Call config.guess.
 328                         guesssys=`echo ${progname} | sed 's/configure$/config.guess/'`
 329                         if host_alias=`${guesssys}`
 330                         then
 331                                 # If the string we are going to use for
 332                                 # the target is a prefix of the string
 333                                 # we just guessed for the host, then
 334                                 # assume we are running native, and force
 335                                 # the same string for both target and host.
 336                                 case $target_alias in
 337                                 NOTARGET)
 338                                         case $undefs in
 339                                         NOUNDEFS) ;;
 340                                         *)
 341                                             if expr $host_alias : $undefs >/dev/null
 342                                             then
 343                                                 host_alias=$undefs
 344                                             fi
 345                                             ;;
 346                                         esac
 347                                         ;;
 348                                 *)
 349                                         if expr $host_alias : $target_alias >/dev/null
 350                                         then
 351                                                 host_alias=$target_alias
 352                                         fi
 353                                         ;;
 354                                 esac
 355                                 echo "Configuring for a ${host_alias} host." 1>&2
 356                                 arguments="--host=$host_alias $arguments"
 357                         else
 358                                 echo 'Config.guess failed to determine the host type.  You need to specify one.' 1>&2
 359                                 fatal=yes
 360                         fi
 361                         ;;
 362                 *)
 363                         host_alias=$undefs
 364                         ;;
 365                 esac
 366         esac
 367
 368         # Do defaulting for target.  If --target option isn't present, default
 369         # to undefs.  If undefs isn't present, default to host.
 370         case $target_alias in
 371         NOTARGET)
 372                 case $undefs in
 373                 NOUNDEFS)
 374                         target_alias=$host_alias
 375                         ;;
 376                 *)
 377                         target_alias=$undefs
 378                         ;;
 379                 esac
 380         esac
 381         ;;
 382 *) ;;
 383 esac
 384
 385 if [ -n "${fatal}" -o "${host_alias}" = "help" ] ; then
 386         exec 1>&2
 387         echo Usage: configure [OPTIONS] HOST
 388         echo
 389         echo Options: [defaults in brackets]
 390         echo ' --prefix=MYDIR            configure for installation of host independent files into MYDIR. ["/usr/local"]'
 391         echo ' --exec-prefix=MYDIR       configure for installation of host dependent files into MYDIR. ["/usr/local"]'
 392         echo ' --help                    print this message. [normal config]'
 393         echo ' --build=BUILD             configure for building on BUILD.  [BUILD=HOST]'
 394         echo ' --host=HOST               configure for HOST.  [determined via config.guess]'
 395         echo ' --norecursion             configure this directory only. [recurse]'
 396         echo ' --program-prefix=FOO      install programs with FOO prepended to their names. [ "" ]'
 397         echo ' --program-suffix=FOO      install programs with FOO appended to their names. [ "" ]'
 398         echo ' --program-transform-name=FOO install programs with names transformed by sed pattern FOO. [ "" ]'
 399         echo ' --site=SITE               configure with site specific makefile for SITE'
 400         echo ' --srcdir=DIR              find the sources in DIR. ["." or ".."]'
 401         echo ' --target=TARGET   configure for TARGET.  [TARGET = HOST]'
 402         echo ' --tmpdir=TMPDIR   create temporary files in TMPDIR.  [ TMPDIR = "/tmp" ]'
 403         echo ' --nfp                     configure the compilers default to soft floating point. [hard float]'
 404         echo ' --with-FOO, --with-FOO=BAR package FOO is available (parameter BAR)'
 405         echo ' --without-FOO             package FOO is NOT available'
 406         echo ' --enable-FOO, --enable-FOO=BAR include feature FOO (parameter BAR)'
 407         echo ' --disable-FOO             do not include feature FOO'
 408         echo
 409         echo 'Where HOST and TARGET are something like "sun4", "decstation", "encore", etc.'
 410         echo
 411         if [ -r config.status ] ; then
 412                 cat config.status
 413         fi
 414
 415         exit 1
 416 fi
 417
 418 configsub=`echo ${progname} | sed 's/configure$/config.sub/'`
 419 moveifchange=`echo ${progname} | sed 's/configure$/move-if-change/'`
 420
 421 # this is a hack.  sun4 must always be a valid host alias or this will fail.
 422 if ${configsub} sun4 >/dev/null 2>&1 ; then
 423         true
 424 else
 425         echo '***' cannot find config.sub.  1>&2
 426         exit 1
 427 fi
 428
 429 touch config.junk
 430 if ${moveifchange} config.junk config.trash ; then
 431         true
 432 else
 433         echo '***' cannot find move-if-change.  1>&2
 434         exit 1
 435 fi
 436 rm -f config.junk config.trash
 437
 438 case "${srcdir}" in
 439 "")
 440         if [ -r configure.in ] ; then
 441                 srcdir=.
 442         else
 443                 if [ -r ${progname}.in ] ; then
 444                         srcdir=`echo ${progname} | sed 's:/configure$::'`
 445                 else
 446                         echo '***' "Can't find configure.in.  Try using --srcdir=some_dir"  1>&2
 447                         exit 1
 448                 fi
 449         fi
 450         ;;
 451 *) ;;
 452 esac
 453
 454 ### warn about some conflicting configurations.
 455
 456 case "${srcdir}" in
 457 ".") ;;
 458 *)
 459         if [ -f ${srcdir}/config.status ] ; then
 460                 echo '***' Cannot configure here in \"${PWD=`pwd`}\" when \"${srcdir}\" is currently configured. 1>&2
 461                 exit 1
 462         fi
 463 esac
 464
 465 # default exec_prefix
 466 case "${exec_prefixoption}" in
 467 "") exec_prefix="\$(prefix)" ;;
 468 *) ;;
 469 esac
 470
 471 ### break up ${srcdir}/configure.in.
 472 case "`grep '^# per\-host:' ${srcdir}/configure.in`" in
 473 "")
 474         echo '***' ${srcdir}/configure.in has no \"per-host:\" line. 1>&2
 475         exit 1
 476         ;;
 477 *) ;;
 478 esac
 479
 480 case "`grep '^# per\-target:' ${srcdir}/configure.in`" in
 481 "")
 482         echo '***' ${srcdir}/configure.in has no \"per-target:\" line. 1>&2
 483         exit 1
 484         ;;
 485 *) ;;
 486 esac
 487
 488 case "${TMPDIR}" in
 489 "") TMPDIR=/tmp ; export TMPDIR ;;
 490 *) ;;
 491 esac
 492
 493 # keep this filename short for &%*%$*# 14 char file names
 494 tmpfile=${TMPDIR}/cONf$$
 495 trap "rm -f ${tmpfile}.com ${tmpfile}.tgt ${tmpfile}.hst ${tmpfile}.pos; exit 1" 1 2 15
 496 trap "rm -f ${tmpfile}.com ${tmpfile}.tgt ${tmpfile}.hst ${tmpfile}.pos" 0
 497
 498 # split ${srcdir}/configure.in into common, per-host, per-target,
 499 # and post-target parts.  Post-target is optional.
 500 sed -e '/^# per\-host:/,$d' ${srcdir}/configure.in > ${tmpfile}.com
 501 sed -e '1,/^# per\-host:/d' -e '/^# per\-target:/,$d' ${srcdir}/configure.in > ${tmpfile}.hst
 502 if grep '^# post-target:' ${srcdir}/configure.in >/dev/null ; then
 503   sed -e '1,/^# per\-target:/d' -e '/^# post\-target:/,$d' ${srcdir}/configure.in > ${tmpfile}.tgt
 504   sed -e '1,/^# post\-target:/d' ${srcdir}/configure.in > ${tmpfile}.pos
 505 else
 506   sed -e '1,/^# per\-target:/d' ${srcdir}/configure.in > ${tmpfile}.tgt
 507   echo >${tmpfile}.pos
 508 fi
 509
 510 ### do common part of configure.in
 511
 512 . ${tmpfile}.com
 513
 514 # some sanity checks on configure.in
 515 case "${srctrigger}" in
 516 "")
 517         echo '***' srctrigger not set in ${PWD=`pwd`}/configure.in.  1>&2
 518         exit 1
 519         ;;
 520 *) ;;
 521 esac
 522
 523 case "${build_alias}" in
 524 "")     ;;
 525 *)
 526         result=`${configsub} ${build_alias}`
 527         buildopt="--build=${build_alias}"
 528         build_cpu=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\1/'`
 529         build_vendor=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\2/'`
 530         build_os=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\3/'`
 531         build=${build_cpu}-${build_vendor}-${build_os}
 532         ;;
 533 esac
 534
 535 result=`${configsub} ${host_alias}`
 536 host_cpu=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\1/'`
 537 host_vendor=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\2/'`
 538 host_os=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\3/'`
 539 host=${host_cpu}-${host_vendor}-${host_os}
 540
 541 . ${tmpfile}.hst
 542
 543 result=`${configsub} ${target_alias}`
 544 target_cpu=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\1/'`
 545 target_vendor=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\2/'`
 546 target_os=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\3/'`
 547 target=${target_cpu}-${target_vendor}-${target_os}
 548
 549 . ${tmpfile}.tgt
 550
 551 # Find the source files, if location was not specified.
 552 case "${srcdir}" in
 553 "")
 554         srcdirdefaulted=1
 555         srcdir=.
 556         if [ ! -r ${srctrigger} ] ; then
 557                 srcdir=..
 558         fi
 559         ;;
 560 *) ;;
 561 esac
 562
 563 if [ ! -r ${srcdir}/${srctrigger} ] ; then
 564         case "${srcdirdefaulted}" in
 565         "") echo '***' "${progname}: Can't find ${srcname} sources in ${PWD=`pwd`}/${srcdir}" 1>&2 ;;
 566         *)  echo '***' "${progname}: Can't find ${srcname} sources in ${PWD=`pwd`}/. or ${PWD=`pwd`}/.." 1>&2 ;;
 567         esac
 568
 569         echo '***' \(At least ${srctrigger} is missing.\) 1>&2
 570         exit 1
 571 fi
 572
 573 # Some systems (e.g., one of the i386-aix systems the gas testers are
 574 # using) don't handle "\$" correctly, so don't use it here.
 575 tooldir='$(exec_prefix)'/${target_alias}
 576
 577 if [ "${host_alias}" != "${target_alias}" ] ; then
 578     if [ "${program_prefixoption}" = "" ] ; then
 579         if [ "${program_suffixoption}" = "" ] ; then
 580             if [ "${program_transform_nameoption}" = "" ] ; then
 581                 program_prefix=${target_alias}- ;
 582             fi
 583         fi
 584     fi
 585 fi
 586
 587 # Merge program_prefix and program_suffix onto program_transform_name
 588 # Use a double $ so that make ignores it
 589 if [ "${program_suffix}" != "" ] ; then
 590     program_transform_name="-e s,\$\$,${program_suffix}, ${program_transform_name}"
 591 fi
 592
 593 if [ "${program_prefix}" != "" ] ; then
 594     program_transform_name="-e s,^,${program_prefix}, ${program_transform_name}"
 595 fi
 596
 597 for subdir in . ${subdirs} ; do
 598
 599     # ${subdir} is relative path from . to the directory we're currently
 600     # configuring.
 601     # ${invsubdir} is inverse of ${subdir), *with* trailing /, if needed.
 602     invsubdir=`echo ${subdir}/ | sed -e 's|\./||g' -e 's|[^/]*/|../|g'`
 603
 604     ### figure out what to do with srcdir
 605     case "${srcdir}" in
 606         ".")  # no -srcdir option.  We're building in place.
 607                 makesrcdir=. ;;
 608         /*) # absolute path
 609                 makesrcdir=`echo ${srcdir}/${subdir} | sed -e 's|/\.$||'`
 610                 ;;
 611         *) # otherwise relative
 612                 case "${subdir}" in
 613                 .) makesrcdir=${srcdir} ;;
 614                 *) makesrcdir=${invsubdir}${srcdir}/${subdir} ;;
 615                 esac
 616                 ;;
 617     esac
 618
 619     if [ "${subdir}/" != "./" ] ; then
 620         Makefile=${subdir}/Makefile
 621     fi
 622
 623     if [ ! -d ${subdir} ] ; then
 624         if mkdir ${subdir} ; then
 625                 true
 626         else
 627                 echo '***' "${progname}: could not make ${PWD=`pwd`}/${subdir}" 1>&2
 628                 exit 1
 629         fi
 630     fi
 631
 632     case "${removing}" in
 633     "")
 634         case "${subdir}" in
 635         .) ;;
 636         *) eval echo Building in ${subdir} ${redirect} ;;
 637         esac
 638
 639         # FIXME Should this be done recursively ??? (Useful for e.g. gdbtest)
 640         # Set up the list of links to be made.
 641         # ${links} is the list of link names, and ${files} is the list of names to link to.
 642
 643         # Make the links.
 644         configlinks="${links}"
 645         if [ -r ${subdir}/config.status ] ; then
 646                 mv -f ${subdir}/config.status ${subdir}/config.back
 647         fi
 648         while [ -n "${files}" ] ; do
 649                 # set file to car of files, files to cdr of files
 650                 set ${files}; file=$1; shift; files=$*
 651                 set ${links}; link=$1; shift; links=$*
 652
 653                 if [ ! -r ${srcdir}/${file} ] ; then
 654                         echo '***' "${progname}: cannot create a link \"${link}\"," 1>&2
 655                         echo '***' "since the file \"${srcdir}/${file}\" does not exist." 1>&2
 656                         exit 1
 657                 fi
 658
 659                 ${remove} -f ${link}
 660                 # Make a symlink if possible, otherwise try a hard link
 661                 if ${symbolic_link} ${srcdir}/${file} ${link} >/dev/null 2>&1 ; then
 662                         true
 663                 else
 664                         # We need to re-remove the file because Lynx leaves a
 665                         # very strange directory there when it fails an NFS symlink.
 666                         ${remove} -r -f ${link}
 667                         ${hard_link} ${srcdir}/${file} ${link}
 668                 fi
 669                 if [ ! -r ${link} ] ; then
 670                         echo '***' "${progname}: unable to link \"${link}\" to \"${srcdir}/${file}\"." 1>&2
 671                         exit 1
 672                 fi
 673
 674                 echo "Linked \"${link}\" to \"${srcdir}/${file}\"."
 675         done
 676
 677         # Create a .gdbinit file which runs the one in srcdir
 678         # and tells GDB to look there for source files.
 679
 680         if [ -r ${srcdir}/${subdir}/.gdbinit ] ; then
 681                 case ${srcdir} in
 682                 .) ;;
 683                 *) cat > ${subdir}/.gdbinit <<EOF
 684 # ${NO_EDIT}
 685 dir ${makesrcdir}
 686 dir .
 687 source ${makesrcdir}/.gdbinit
 688 EOF
 689                         ;;
 690                 esac
 691         fi
 692
 693         # Install a makefile, and make it set VPATH
 694         # if necessary so that the sources are found.
 695         # Also change its value of srcdir.
 696         # NOTE: Makefile generation constitutes the majority of the time in configure.  Hence, this section has
 697         # been somewhat optimized and is perhaps a bit twisty.
 698
 699         # code is order so as to try to sed the smallest input files we know.
 700
 701         # the four makefile fragments MUST end up in the resulting Makefile in this order:
 702         # package, target, host, and site.  so do these separately because I don't trust the
 703         #  order of sed -e expressions.
 704
 705         if [ -f ${srcdir}/${subdir}/${Makefile_in} ] ; then
 706
 707             # Conditionalize for this site from "Makefile.in" (or whatever it's called) into Makefile.tem
 708             rm -f ${subdir}/Makefile.tem
 709               case "${site}" in
 710               "") cp ${srcdir}/${subdir}/${Makefile_in} ${subdir}/Makefile.tem ;;
 711               *)
 712                       site_makefile_frag=${srcdir}/config/ms-${site}
 713
 714                       if [ -f ${site_makefile_frag} ] ; then
 715                               sed -e "/^####/  r ${site_makefile_frag}" ${srcdir}/${subdir}/${Makefile_in} \
 716                                       > ${subdir}/Makefile.tem
 717                       else
 718                               cp ${srcdir}/${subdir}/${Makefile_in} ${subdir}/Makefile.tem
 719                               site_makefile_frag=
 720                       fi
 721                       ;;
 722             esac
 723             # working copy now in ${subdir}/Makefile.tem
 724
 725             # Conditionalize the makefile for this host.
 726             rm -f ${Makefile}
 727             case "${host_makefile_frag}" in
 728               "") mv ${subdir}/Makefile.tem ${Makefile} ;;
 729               *)
 730                       if [ ! -f ${host_makefile_frag} ] ; then
 731                               host_makefile_frag=${srcdir}/${host_makefile_frag}
 732                       fi
 733                       if [ -f ${host_makefile_frag} ] ; then
 734                               sed -e "/^####/  r ${host_makefile_frag}" ${subdir}/Makefile.tem > ${Makefile}
 735                       else
 736                               echo '***' Expected host makefile fragment \"${host_makefile_frag}\" 1>&2
 737                               echo '***' is missing in ${PWD=`pwd`}. 1>&2
 738                               mv ${subdir}/Makefile.tem ${Makefile}
 739                       fi
 740             esac
 741             # working copy now in ${Makefile}
 742
 743             # Conditionalize the makefile for this target.
 744             rm -f ${subdir}/Makefile.tem
 745             case "${target_makefile_frag}" in
 746               "") mv ${Makefile} ${subdir}/Makefile.tem ;;
 747               *)
 748                       if [ ! -f ${target_makefile_frag} ] ; then
 749                               target_makefile_frag=${srcdir}/${target_makefile_frag}
 750                       fi
 751                       if [ -f ${target_makefile_frag} ] ; then
 752                               sed -e "/^####/  r ${target_makefile_frag}" ${Makefile} > ${subdir}/Makefile.tem
 753                       else
 754                               mv ${Makefile} ${subdir}/Makefile.tem
 755                               target_makefile_frag=
 756                       fi
 757                       ;;
 758             esac
 759             # real copy now in ${subdir}/Makefile.tem
 760
 761             # Conditionalize the makefile for this package.
 762             rm -f ${Makefile}
 763             case "${package_makefile_frag}" in
 764               "") mv ${subdir}/Makefile.tem ${Makefile} ;;
 765               *)
 766                       if [ ! -f ${package_makefile_frag} ] ; then
 767                               package_makefile_frag=${srcdir}/${package_makefile_frag}
 768                       fi
 769                       if [ -f ${package_makefile_frag} ] ; then
 770                               sed -e "/^####/  r ${package_makefile_frag}" ${subdir}/Makefile.tem > ${Makefile}
 771                               rm -f ${subdir}/Makefile.tem
 772                       else
 773                               echo '***' Expected package makefile fragment \"${package_makefile_frag}\" 1>&2
 774                               echo '***' is missing in ${PWD=`pwd`}. 1>&2
 775                               mv ${subdir}/Makefile.tem ${Makefile}
 776                       fi
 777             esac
 778             # working copy now in ${Makefile}
 779
 780             mv ${Makefile} ${subdir}/Makefile.tem
 781
 782             # real copy now in ${subdir}/Makefile.tem
 783
 784             # prepend warning about editting, and a bunch of variables.
 785             rm -f ${Makefile}
 786             cat > ${Makefile} <<EOF
 787 # ${NO_EDIT}
 788 VPATH = ${makesrcdir}
 789 links = ${configlinks}
 790 host_alias = ${host_alias}
 791 host_cpu = ${host_cpu}
 792 host_vendor = ${host_vendor}
 793 host_os = ${host_os}
 794 host_canonical = ${host_cpu}-${host_vendor}-${host_os}
 795 target_alias = ${target_alias}
 796 target_cpu = ${target_cpu}
 797 target_vendor = ${target_vendor}
 798 target_os = ${target_os}
 799 target_canonical = ${target_cpu}-${target_vendor}-${target_os}
 800 EOF
 801             case "${build}" in
 802               "") ;;
 803               *)  cat >> ${Makefile} << EOF
 804 build_alias = ${build_alias}
 805 build_cpu = ${build_cpu}
 806 build_vendor = ${build_vendor}
 807 build_os = ${build_os}
 808 build_canonical = ${build_cpu}-${build_vendor}-${build_os}
 809 EOF
 810             esac
 811
 812             case "${package_makefile_frag}" in
 813               "") ;;
 814               /*) echo package_makefile_frag = ${package_makefile_frag} >>${Makefile} ;;
 815               *)  echo package_makefile_frag = ${invsubdir}${package_makefile_frag} >>${Makefile} ;;
 816             esac
 817
 818             case "${target_makefile_frag}" in
 819               "") ;;
 820               /*) echo target_makefile_frag = ${target_makefile_frag} >>${Makefile} ;;
 821               *)  echo target_makefile_frag = ${invsubdir}${target_makefile_frag} >>${Makefile} ;;
 822             esac
 823
 824             case "${host_makefile_frag}" in
 825               "") ;;
 826               /*) echo host_makefile_frag = ${host_makefile_frag} >>${Makefile} ;;
 827               *)  echo host_makefile_frag = ${invsubdir}${host_makefile_frag} >>${Makefile} ;;
 828             esac
 829
 830             if [ "${site_makefile_frag}" != "" ] ; then
 831                 echo site_makefile_frag = ${invsubdir}${site_makefile_frag} >>${Makefile}
 832             fi
 833
 834             # make sure that some sort of reasonable default exists for these
 835             # two variables
 836             CXX=${CXX-"g++ -O"}
 837             CC=${CC-cc}
 838
 839             # reset prefix, exec_prefix, srcdir, SUBDIRS, NONSUBDIRS,
 840             # remove any form feeds.
 841             if [ -z "${subdirs}" ]; then
 842                 rm -f ${subdir}/Makefile.tem2
 843                 sed -e "s:^SUBDIRS[     ]*=.*$:SUBDIRS = ${configdirs}:" \
 844                     -e "s:^NONSUBDIRS[  ]*=.*$:NONSUBDIRS = ${noconfigdirs}:" \
 845                     ${subdir}/Makefile.tem > ${subdir}/Makefile.tem2
 846                 rm -f ${subdir}/Makefile.tem
 847                 mv ${subdir}/Makefile.tem2 ${subdir}/Makefile.tem
 848             fi
 849             sed -e "s:^prefix[  ]*=.*$:prefix = ${prefix}:" \
 850                     -e "s:^exec_prefix[         ]*=.*$:exec_prefix = ${exec_prefix}:" \
 851                     -e "s:^SHELL[        ]*=.*$:SHELL = ${config_shell}:" \
 852                     -e "s:^srcdir[      ]*=.*$:srcdir = ${makesrcdir}:" \
 853                     -e "s/\f//" \
 854                     -e "s:^program_prefix[      ]*=.*$:program_prefix = ${program_prefix}:" \
 855                     -e "s:^program_suffix[      ]*=.*$:program_suffix = ${program_suffix}:" \
 856                     -e "s:^program_transform_name[      ]*=.*$:program_transform_name = ${program_transform_name}:" \
 857                     -e "s:^tooldir[     ]*=.*$:tooldir = ${tooldir}:" \
 858                     ${subdir}/Makefile.tem >> ${Makefile}
 859             # final copy now in ${Makefile}
 860
 861         else
 862            echo "No Makefile.in found in ${srcdir}/${subdir}, unable to configure" 1>&2
 863         fi
 864
 865         rm -f ${subdir}/Makefile.tem
 866
 867         case "${host_makefile_frag}" in
 868         "") using= ;;
 869         *) using="and \"${host_makefile_frag}\"" ;;
 870         esac
 871
 872         case "${target_makefile_frag}" in
 873         "") ;;
 874         *) using="${using} and \"${target_makefile_frag}\"" ;;
 875         esac
 876
 877         case "${site_makefile_frag}" in
 878         "") ;;
 879         *) using="${using} and \"${site_makefile_frag}\"" ;;
 880         esac
 881
 882         newusing=`echo "${using}" | sed 's/and/using/'`
 883         using=${newusing}
 884         echo "Created \"${Makefile}\" in" ${PWD=`pwd`} ${using}
 885
 886         . ${tmpfile}.pos
 887
 888         # describe the chosen configuration in config.status.
 889         # Make that file a shellscript which will reestablish
 890         # the same configuration.  Used in Makefiles to rebuild
 891         # Makefiles.
 892
 893         case "${norecursion}" in
 894         "") arguments="${arguments} --norecursion" ;;
 895         *) ;;
 896         esac
 897
 898         if [ ${subdir} = . ] ; then
 899             echo "#!/bin/sh
 900 # ${NO_EDIT}
 901 # This directory was configured as follows:
 902 ${progname}" ${arguments}  "
 903 # ${using}" > ${subdir}/config.new
 904         else
 905             echo "#!/bin/sh
 906 # ${NO_EDIT}
 907 # This directory was configured as follows:
 908 cd ${invsubdir}
 909 ${progname}" ${arguments}  "
 910 # ${using}" > ${subdir}/config.new
 911         fi
 912         chmod a+x ${subdir}/config.new
 913         if [ -r ${subdir}/config.back ] ; then
 914                 mv -f ${subdir}/config.back ${subdir}/config.status
 915         fi
 916         ${moveifchange} ${subdir}/config.new ${subdir}/config.status
 917         ;;
 918
 919     *)  rm -f ${Makefile} ${subdir}/config.status ${links} ;;
 920     esac
 921 done
 922
 923 # If there are subdirectories, then recur.
 924 if [ -z "${norecursion}" -a -n "${configdirs}" ] ; then
 925         for configdir in ${configdirs} ; do
 926
 927                 if [ -d ${srcdir}/${configdir} ] ; then
 928                         eval echo Configuring ${configdir}... ${redirect}
 929                         case "${srcdir}" in
 930                         ".") ;;
 931                         *)
 932                                 if [ ! -d ./${configdir} ] ; then
 933                                         if mkdir ./${configdir} ; then
 934                                                 true
 935                                         else
 936                                                 echo '***' "${progname}: could not make ${PWD=`pwd`}/${configdir}" 1>&2
 937                                                 exit 1
 938                                         fi
 939                                 fi
 940                                 ;;
 941                         esac
 942
 943                         POPDIR=${PWD=`pwd`}
 944                         cd ${configdir}
 945
 946 ### figure out what to do with srcdir
 947                         case "${srcdir}" in
 948                         ".") newsrcdir=${srcdir} ;; # no -srcdir option.  We're building in place.
 949                         /*) # absolute path
 950                                 newsrcdir=${srcdir}/${configdir}
 951                                 srcdiroption="--srcdir=${newsrcdir}"
 952                                 ;;
 953                         *) # otherwise relative
 954                                 newsrcdir=../${srcdir}/${configdir}
 955                                 srcdiroption="--srcdir=${newsrcdir}"
 956                                 ;;
 957                         esac
 958
 959 ### check for guested configure, otherwise fix possibly relative progname
 960                         if [ -f ${newsrcdir}/configure ] ; then
 961                                 recprog=${newsrcdir}/configure
 962                         elif [ -f ${newsrcdir}/configure.in ] ; then
 963                                 case "${progname}" in
 964                                 /*)     recprog=${progname} ;;
 965                                 *)      recprog=../${progname} ;;
 966                                 esac
 967                         else
 968                                 eval echo No configuration information in ${configdir} ${redirect}
 969                                 recprog=
 970                         fi
 971
 972 ### The recursion line is here.
 973                         if [ ! -z "${recprog}" ] ; then
 974                                 if eval ${config_shell} ${recprog} ${verbose} ${buildopt} --host=${host_alias} --target=${target_alias} \
 975                                         ${prefixoption} ${tmpdiroption} ${exec_prefixoption} \
 976                                         ${srcdiroption} ${program_prefixoption} ${program_suffixoption} ${program_transform_nameoption} ${site_option} ${withoptions} ${withoutoptions} ${enableoptions} ${disableoptions} ${removing} ${other_options} ${redirect} ; then
 977                                         true
 978                                 else
 979                                         echo Configure in `pwd` failed, exiting. 1>&2
 980                                         exit 1
 981                                 fi
 982                         fi
 983
 984                         cd ${POPDIR}
 985                 fi
 986         done
 987 fi
 988
 989 exit 0
 990
 991 #
 992 # Local Variables:
 993 # fill-column: 131
 994 # End:
 995 #
 996
 997 # end of configure