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 report any problems running this configure script to
  23 # configure@cygnus.com
  24 # Please do not send reports about other problems to this address.  See
  25 # gdb/README, gas/README, etc., for info on where and how to report
  26 # problems about particular tools.
  27
  28 # This file was written by K. Richard Pixley.
  29
  30 #
  31 # Shell script to create proper links to machine-dependent files in
  32 # preparation for compilation.
  33 #
  34 # If configure succeeds, it leaves its status in config.status.
  35 # If configure fails after disturbing the status quo,
  36 #       config.status is removed.
  37 #
  38
  39 export PATH || (echo "OOPS, this isn't sh.  Desperation time.  I will feed myself to sh."; sh $0 $argv; kill $$)
  40
  41 remove=rm
  42 hard_link=ln
  43 symbolic_link='ln -s'
  44
  45 #for Test
  46 #remove="echo rm"
  47 #hard_link="echo ln"
  48 #symbolic_link="echo ln -s"
  49
  50 # clear some things potentially inherited from environment.
  51
  52 Makefile=Makefile
  53 Makefile_in=Makefile.in
  54 arguments=$*
  55 build_alias=
  56 cache_file=
  57 cache_file_option=
  58 configdirs=
  59 exec_prefix=
  60 exec_prefixoption=
  61 fatal=
  62 floating_point=default
  63 gas=default
  64 host_alias=NOHOST
  65 host_makefile_frag=
  66 moveifchange=
  67 norecursion=
  68 other_options=
  69 package_makefile_frag=
  70 prefix=/usr/local
  71 progname=
  72 program_prefix=
  73 program_prefixoption=
  74 program_suffix=
  75 program_suffixoption=
  76 program_transform_name=
  77 program_transform_nameoption=
  78 redirect=">/dev/null"
  79 removing=
  80 site=
  81 site_makefile_frag=
  82 site_option=
  83 srcdir=
  84 srctrigger=
  85 subdirs=
  86 target_alias=NOTARGET
  87 target_makefile_frag=
  88 undefs=NOUNDEFS
  89 version="$Revision$"
  90 x11=default
  91
  92 ### we might need to use some other shell than /bin/sh for running subshells
  93 #
  94 config_shell=${CONFIG_SHELL-/bin/sh}
  95
  96 NO_EDIT="This file was generated automatically by configure.  Do not edit."
  97
  98 ## this is a little touchy and won't always work, but...
  99 ##
 100 ## if the argv[0] starts with a slash then it is an absolute name that can (and
 101 ## must) be used as is.
 102 ##
 103 ## otherwise, if argv[0] has no slash in it, we can assume that it is on the
 104 ## path.  Since PATH might include "." we also add `pwd` to the end of PATH.
 105 ##
 106
 107 progname=$0
 108 # if PWD already has a value, it is probably wrong.
 109 if [ -n "$PWD" ]; then PWD=`pwd`; fi
 110
 111 case "${progname}" in
 112 /*) ;;
 113 */*) ;;
 114 *)
 115         PATH=$PATH:${PWD=`pwd`} ; export PATH
 116         ;;
 117 esac
 118
 119 # Loop over all args
 120
 121 while :
 122 do
 123
 124 # Break out if there are no more args
 125         case $# in
 126         0)
 127                 break
 128                 ;;
 129         esac
 130
 131 # Get the first arg, and shuffle
 132         option=$1
 133         shift
 134
 135 # Make all options have two hyphens
 136         orig_option=$option     # Save original for error messages
 137         case $option in
 138         --*) ;;
 139         -*) option=-$option ;;
 140         esac
 141
 142 # Split out the argument for options that take them
 143         case $option in
 144         --*=*)
 145                 optarg=`echo $option | sed -e 's/^[^=]*=//'`
 146                 ;;
 147 # These options have mandatory values.  Since we didn't find an = sign,
 148 # the value must be in the next argument
 149         --b* | --cache* | --ex* | --ho* | --pre* | --program-p* | --program-s* | --program-t* | --si* | --sr* | --ta* | --tm* | --x-*)
 150                 optarg=$1
 151                 shift
 152                 ;;
 153         esac
 154
 155 # Now, process the options
 156         case $option in
 157
 158         --build* | --b*)
 159                 case "$build_alias" in
 160                 "") build_alias=$optarg ;;
 161                 *) echo '***' Can only configure for one build machine at a time.  1>&2
 162                    fatal=yes
 163                    ;;
 164                 esac
 165                 ;;
 166         --cache*)
 167                 cache_file=$optarg
 168                 ;;
 169         --disable-*)
 170                 enableopt=`echo ${option} | sed 's:^--disable-:enable_:;s:-:_:g'`
 171                 eval $enableopt=no
 172                 disableoptions="$disableoptions $option"
 173                 ;;
 174         --enable-*)
 175                 case "$option" in
 176                 *=*)    ;;
 177                 *)      optarg=yes ;;
 178                 esac
 179
 180                 enableopt=`echo ${option} | sed 's:^--::;s:=.*$::;s:-:_:g'`
 181                 eval $enableopt="$optarg"
 182                 enableoptions="$enableoptions $option"
 183                 ;;
 184         --exec-prefix* | --ex*)
 185                 exec_prefix=$optarg
 186                 exec_prefixoption="--exec-prefix=$optarg"
 187                 ;;
 188         --gas | --g*)
 189                 gas=yes
 190                 ;;
 191         --help | --he*)
 192                 fatal=yes
 193                 ;;
 194         --host* | --ho*)
 195                 case $host_alias in
 196                 NOHOST) host_alias=$optarg ;;
 197                 *) echo '***' Can only configure for one host at a time.  1>&2
 198                    fatal=yes
 199                    ;;
 200                 esac
 201                 ;;
 202         --nfp | --nf*)
 203                 floating_point=no
 204                 ;;
 205         --norecursion | --no*)
 206                 norecursion=yes
 207                 ;;
 208         --prefix* | --pre*)
 209                 prefix=$optarg
 210                 prefixoption="--prefix=$optarg"
 211                 ;;
 212         --program-prefix* | --program-p*)
 213                 program_prefix=$optarg
 214                 program_prefixoption="--program-prefix=$optarg"
 215                 ;;
 216         --program-suffix* | --program-s*)
 217                 program_suffix=$optarg
 218                 program_suffixoption="--program-suffix=$optarg"
 219                 ;;
 220         --program-transform-name* | --program-t*)
 221                 # Double any backslashes or dollar signs in the argument
 222                 program_transform_name="${program_transform_name} -e `echo ${optarg} | sed -e 's/\\\\/\\\\\\\\/g' -e 's/\\\$/$$/g'`"
 223                 program_transform_nameoption="${program_transform_nameoption} --program-transform-name='$optarg'"
 224                 ;;
 225         --rm)
 226                 removing=--rm
 227                 ;;
 228         --silent | --sil* | --quiet | --q*)
 229                 redirect=">/dev/null"
 230                 verbose=--silent
 231                 ;;
 232         --site* | --sit*)
 233                 site=$optarg
 234                 site_option="--site=$optarg"
 235                 ;;
 236         --srcdir*/ | --sr*/)
 237                 # Remove trailing slashes.  Otherwise, when the file name gets
 238                 # bolted into an object file as debug info, it has two slashes
 239                 # in it.  Ordinarily this is ok, but emacs takes double slash
 240                 # to mean "forget the first part".
 241                 srcdir=`echo $optarg | sed -e 's:/$::'`
 242                 ;;
 243         --srcdir* | --sr*)
 244                 srcdir=$optarg
 245                 ;;
 246         --target* | --ta*)
 247                 case $target_alias in
 248                 NOTARGET) target_alias=$optarg ;;
 249                 *) echo '***' Can only configure for one target at a time.  1>&2
 250                    fatal=yes
 251                    ;;
 252                 esac
 253                 ;;
 254         --tmpdir* | --tm*)
 255                 TMPDIR=$optarg
 256                 tmpdiroption="--tmpdir=$optarg"
 257                 ;;
 258         --verbose | --v | --verb*)
 259                 redirect=
 260                 verbose=--verbose
 261                 ;;
 262         --version | --V | --vers*)
 263                 echo "This is Cygnus Configure version" `echo ${version} | sed 's/[ $:]//g'`
 264                 exit 0
 265                 ;;
 266         --with-*)
 267                 case "$option" in
 268                 *=*)    ;;
 269                 *)      optarg=yes ;;
 270                 esac
 271
 272                 withopt=`echo ${option} | sed 's:^--::;s:=.*$::;s:-:_:g'`
 273                 eval $withopt="$optarg"
 274                 withoptions="$withoptions $option"
 275                 ;;
 276         --without-*)
 277                 withopt=`echo ${option} | sed 's:^--::;s:out::;s:-:_:g'`
 278                 eval $withopt=no
 279                 withoutoptions="$withoutoptions $option"
 280                 ;;
 281         --x)    with_x=yes
 282                 withoptions="$withoptions --with-x"
 283                 ;;
 284         --x-i* | --x-l*) other_options="$other_options $orig_option"
 285                 ;;
 286         --*)
 287                 echo "configure: Unrecognized option: \"$orig_option\"; use --help for usage." >&2
 288                 exit 1
 289                 ;;
 290         *)
 291                 case $undefs in
 292                 NOUNDEFS) undefs=$option ;;
 293                 *) echo '***' Can only configure for one host and one target at a time.  1>&2
 294                    fatal=yes
 295                    ;;
 296                 esac
 297                 ;;
 298         esac
 299 done
 300
 301 # process host and target
 302
 303 # Do some error checking and defaulting for the host and target type.
 304 # The inputs are:
 305 #    configure --host=HOST --target=TARGET UNDEFS
 306 #
 307 # The rules are:
 308 # 1. You aren't allowed to specify --host, --target, and undefs at the
 309 #    same time.
 310 # 2. Host defaults to undefs.
 311 # 3. If undefs is not specified, then host defaults to the current host,
 312 #    as determined by config.guess.
 313 # 4. Target defaults to undefs.
 314 # 5. If undefs is not specified, then target defaults to host.
 315
 316 case "${fatal}" in
 317 "")
 318         # Make sure that host, target & undefs aren't all specified at the
 319         # same time.
 320         case $host_alias---$target_alias---$undefs in
 321         NOHOST---*---* | *---NOTARGET---* | *---*---NOUNDEFS)
 322                 ;;
 323         *) echo '***' Can only configure for one host and one target at a time.  1>&2
 324            fatal=yes
 325            break 2
 326                 ;;
 327         esac
 328
 329         # Now, do defaulting for host.
 330         case $host_alias in
 331         NOHOST)
 332                 case $undefs in
 333                 NOUNDEFS)
 334                         # Neither --host option nor undefs were present.
 335                         # Call config.guess.
 336                         guesssys=`echo ${progname} | sed 's/configure$/config.guess/'`
 337                         if host_alias=`${guesssys}`
 338                         then
 339                                 # If the string we are going to use for
 340                                 # the target is a prefix of the string
 341                                 # we just guessed for the host, then
 342                                 # assume we are running native, and force
 343                                 # the same string for both target and host.
 344                                 case $target_alias in
 345                                 NOTARGET) ;;
 346                                 *)
 347                                         if expr $host_alias : $target_alias >/dev/null
 348                                         then
 349                                                 host_alias=$target_alias
 350                                         fi
 351                                         ;;
 352                                 esac
 353                                 echo "Configuring for a ${host_alias} host." 1>&2
 354                                 arguments="--host=$host_alias $arguments"
 355                         else
 356                                 echo 'Config.guess failed to determine the host type.  You need to specify one.' 1>&2
 357                                 fatal=yes
 358                         fi
 359                         ;;
 360                 *)
 361                         host_alias=$undefs
 362                         ;;
 363                 esac
 364         esac
 365
 366         # Do defaulting for target.  If --target option isn't present, default
 367         # to undefs.  If undefs isn't present, default to host.
 368         case $target_alias in
 369         NOTARGET)
 370                 case $undefs in
 371                 NOUNDEFS)
 372                         target_alias=$host_alias
 373                         ;;
 374                 *)
 375                         target_alias=$undefs
 376                         ;;
 377                 esac
 378         esac
 379         ;;
 380 *) ;;
 381 esac
 382
 383 if [ -n "${fatal}" -o "${host_alias}" = "help" ] ; then
 384         exec 1>&2
 385         echo Usage: configure [OPTIONS] [HOST]
 386         echo
 387         echo Options: [defaults in brackets]
 388         echo ' --prefix=MYDIR            install into MYDIR [/usr/local]'
 389         echo ' --exec-prefix=MYDIR       install host-dependent files into MYDIR [/usr/local]'
 390         echo ' --help                    print this message [normal config]'
 391         echo ' --build=BUILD             configure for building on BUILD [BUILD=HOST]'
 392         echo ' --host=HOST               configure for HOST [determined via config.guess]'
 393         echo ' --norecursion             configure this directory only [recurse]'
 394         echo ' --program-prefix=FOO      prepend FOO to installed program names [""]'
 395         echo ' --program-suffix=FOO      append FOO to installed program names [""]'
 396         echo ' --program-transform-name=P transform installed names by sed pattern P [""]'
 397         echo ' --site=SITE               configure with site-specific makefile for SITE'
 398         echo ' --srcdir=DIR              find the sources in DIR [. or ..]'
 399         echo ' --target=TARGET   configure for TARGET [TARGET=HOST]'
 400         echo ' --tmpdir=TMPDIR   create temporary files in TMPDIR [/tmp]'
 401         echo ' --nfp                     configure for software floating point [hard float]'
 402         echo ' --with-FOO, --with-FOO=BAR package FOO is available (parameter BAR)'
 403         echo ' --without-FOO             package FOO is NOT available'
 404         echo ' --enable-FOO, --enable-FOO=BAR include feature FOO (parameter BAR)'
 405         echo ' --disable-FOO             do not include feature FOO'
 406         echo
 407         echo 'Where HOST and TARGET are something like "sparc-sunos", "mips-sgi-irix5", etc.'
 408         echo
 409         if [ -r config.status ] ; then
 410                 cat config.status
 411         fi
 412
 413         exit 1
 414 fi
 415
 416 configsub=`echo ${progname} | sed 's/configure$/config.sub/'`
 417 moveifchange=`echo ${progname} | sed 's/configure$/move-if-change/'`
 418
 419 # this is a hack.  sun4 must always be a valid host alias or this will fail.
 420 if ${configsub} sun4 >/dev/null 2>&1 ; then
 421         true
 422 else
 423         echo '***' cannot find config.sub.  1>&2
 424         exit 1
 425 fi
 426
 427 touch config.junk
 428 if ${moveifchange} config.junk config.trash ; then
 429         true
 430 else
 431         echo '***' cannot find move-if-change.  1>&2
 432         exit 1
 433 fi
 434 rm -f config.junk config.trash
 435
 436 case "${srcdir}" in
 437 "")
 438         if [ -r configure.in ] ; then
 439                 srcdir=.
 440         else
 441                 if [ -r ${progname}.in ] ; then
 442                         srcdir=`echo ${progname} | sed 's:/configure$::'`
 443                 else
 444                         echo '***' "Can't find configure.in.  Try using --srcdir=some_dir"  1>&2
 445                         exit 1
 446                 fi
 447         fi
 448         ;;
 449 *) ;;
 450 esac
 451
 452 ### warn about some conflicting configurations.
 453
 454 case "${srcdir}" in
 455 ".") ;;
 456 *)
 457         if [ -f ${srcdir}/config.status ] ; then
 458                 echo '***' Cannot configure here in \"${PWD=`pwd`}\" when \"${srcdir}\" is currently configured. 1>&2
 459                 exit 1
 460         fi
 461 esac
 462
 463 # default exec_prefix
 464 case "${exec_prefixoption}" in
 465 "") exec_prefix="\$(prefix)" ;;
 466 *) ;;
 467 esac
 468
 469 ### break up ${srcdir}/configure.in.
 470 case "`grep '^# per\-host:' ${srcdir}/configure.in`" in
 471 "")
 472         echo '***' ${srcdir}/configure.in has no \"per-host:\" line. 1>&2
 473         # Check for a directory that's been converted to use autoconf since
 474         # it was last configured.
 475         if grep AC_OUTPUT ${srcdir}/configure.in >/dev/null ; then
 476           echo '***' Hmm, looks like this directory has been autoconfiscated. 1>&2
 477           if [ -r ${srcdir}/configure ] ; then
 478             echo '***' Running the local configure script. 1>&2
 479             case "${cache_file}" in
 480             "") cache_file_option= ;;
 481             *)  cache_file_option="--cache-file=${cache_file}" ;;
 482             esac
 483             srcdiroption="--srcdir=${srcdir}"
 484             case "${build_alias}" in
 485             "") buildopt= ;;
 486             *)  buildopt="--build=${build_alias}" ;;
 487             esac
 488             eval exec ${config_shell} ${srcdir}/configure ${verbose} \
 489                 ${buildopt} --host=${host_alias} --target=${target_alias} \
 490                 ${prefixoption} ${tmpdiroption} ${exec_prefixoption} \
 491                 ${srcdiroption} \
 492                 ${program_prefixoption} ${program_suffixoption} \
 493                 ${program_transform_nameoption} ${site_option} \
 494                 ${withoptions} ${withoutoptions} \
 495                 ${enableoptions} ${disableoptions} \
 496                 ${cache_file_option} ${removing} ${other_options} ${redirect}
 497           else
 498             echo '***' There is no configure script present though. 1>&2
 499           fi
 500         fi
 501         exit 1
 502         ;;
 503 *) ;;
 504 esac
 505
 506 case "`grep '^# per\-target:' ${srcdir}/configure.in`" in
 507 "")
 508         echo '***' ${srcdir}/configure.in has no \"per-target:\" line. 1>&2
 509         exit 1
 510         ;;
 511 *) ;;
 512 esac
 513
 514 case "${TMPDIR}" in
 515 "") TMPDIR=/tmp ; export TMPDIR ;;
 516 *) ;;
 517 esac
 518
 519 # keep this filename short for &%*%$*# 14 char file names
 520 tmpfile=${TMPDIR}/cONf$$
 521 # Note that under many versions of sh a trap handler for 0 will *override* any
 522 # exit status you explicitly specify!  At this point, the only non-error exit
 523 # is at the end of the script; these actions are duplicated there, minus
 524 # the "exit 1".  Don't use "exit 0" anywhere after this without resetting the
 525 # trap handler, or you'll lose.
 526 trap "rm -f ${tmpfile}.com ${tmpfile}.tgt ${tmpfile}.hst ${tmpfile}.pos; exit 1" 0 1 2 15
 527
 528 # split ${srcdir}/configure.in into common, per-host, per-target,
 529 # and post-target parts.  Post-target is optional.
 530 sed -e '/^# per\-host:/,$d' ${srcdir}/configure.in > ${tmpfile}.com
 531 sed -e '1,/^# per\-host:/d' -e '/^# per\-target:/,$d' ${srcdir}/configure.in > ${tmpfile}.hst
 532 if grep '^# post-target:' ${srcdir}/configure.in >/dev/null ; then
 533   sed -e '1,/^# per\-target:/d' -e '/^# post\-target:/,$d' ${srcdir}/configure.in > ${tmpfile}.tgt
 534   sed -e '1,/^# post\-target:/d' ${srcdir}/configure.in > ${tmpfile}.pos
 535 else
 536   sed -e '1,/^# per\-target:/d' ${srcdir}/configure.in > ${tmpfile}.tgt
 537   echo >${tmpfile}.pos
 538 fi
 539
 540 ### do common part of configure.in
 541
 542 . ${tmpfile}.com
 543
 544 # some sanity checks on configure.in
 545 case "${srctrigger}" in
 546 "")
 547         echo '***' srctrigger not set in ${PWD=`pwd`}/configure.in.  1>&2
 548         exit 1
 549         ;;
 550 *) ;;
 551 esac
 552
 553 case "${build_alias}" in
 554 "")     ;;
 555 *)
 556         if result=`${config_shell} ${configsub} ${build_alias}` ; then
 557             buildopt="--build=${build_alias}"
 558             build_cpu=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\1/'`
 559             build_vendor=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\2/'`
 560             build_os=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\3/'`
 561             build=${build_cpu}-${build_vendor}-${build_os}
 562         else
 563             echo "Unrecognized build system name ${build_alias}." 1>&2
 564             exit 1
 565         fi
 566         ;;
 567 esac
 568
 569 if result=`${config_shell} ${configsub} ${host_alias}` ; then
 570     true
 571 else
 572     echo "Unrecognized host system name ${host_alias}." 1>&2
 573     exit 1
 574 fi
 575 host_cpu=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\1/'`
 576 host_vendor=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\2/'`
 577 host_os=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\3/'`
 578 host=${host_cpu}-${host_vendor}-${host_os}
 579
 580 . ${tmpfile}.hst
 581
 582 if result=`${config_shell} ${configsub} ${target_alias}` ; then
 583     true
 584 else
 585     echo "Unrecognized target system name ${target_alias}." 1>&2
 586     exit 1
 587 fi
 588 target_cpu=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\1/'`
 589 target_vendor=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\2/'`
 590 target_os=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\3/'`
 591 target=${target_cpu}-${target_vendor}-${target_os}
 592
 593 . ${tmpfile}.tgt
 594
 595 # Find the source files, if location was not specified.
 596 case "${srcdir}" in
 597 "")
 598         srcdirdefaulted=1
 599         srcdir=.
 600         if [ ! -r ${srctrigger} ] ; then
 601                 srcdir=..
 602         fi
 603         ;;
 604 *) ;;
 605 esac
 606
 607 if [ ! -r ${srcdir}/${srctrigger} ] ; then
 608         case "${srcdirdefaulted}" in
 609         "") echo '***' "${progname}: Can't find ${srcname} sources in ${PWD=`pwd`}/${srcdir}" 1>&2 ;;
 610         *)  echo '***' "${progname}: Can't find ${srcname} sources in ${PWD=`pwd`}/. or ${PWD=`pwd`}/.." 1>&2 ;;
 611         esac
 612
 613         echo '***' \(At least ${srctrigger} is missing.\) 1>&2
 614         exit 1
 615 fi
 616
 617 # Some systems (e.g., one of the i386-aix systems the gas testers are
 618 # using) don't handle "\$" correctly, so don't use it here.
 619 tooldir='$(exec_prefix)'/${target_alias}
 620
 621 if [ "${host_alias}" != "${target_alias}" ] ; then
 622     if [ "${program_prefixoption}" = "" ] ; then
 623         if [ "${program_suffixoption}" = "" ] ; then
 624             if [ "${program_transform_nameoption}" = "" ] ; then
 625                 program_prefix=${target_alias}- ;
 626             fi
 627         fi
 628     fi
 629 fi
 630
 631 # Merge program_prefix and program_suffix onto program_transform_name.
 632 # (program_suffix used to use $, but it's hard to preserve $ through both
 633 # make and sh.)
 634 if [ "${program_suffix}" != "" ] ; then
 635     program_transform_name="-e s,\\\\(.*\\\\),\\\\1${program_suffix}, ${program_transform_name}"
 636 fi
 637
 638 if [ "${program_prefix}" != "" ] ; then
 639     program_transform_name="-e s,^,${program_prefix}, ${program_transform_name}"
 640 fi
 641
 642 for subdir in . ${subdirs} ; do
 643
 644     # ${subdir} is relative path from . to the directory we're currently
 645     # configuring.
 646     # ${invsubdir} is inverse of ${subdir), *with* trailing /, if needed.
 647     invsubdir=`echo ${subdir}/ | sed -e 's|\./||g' -e 's|[^/]*/|../|g'`
 648
 649     ### figure out what to do with srcdir
 650     case "${srcdir}" in
 651         ".")  # no -srcdir option.  We're building in place.
 652                 makesrcdir=. ;;
 653         /*) # absolute path
 654                 makesrcdir=`echo ${srcdir}/${subdir} | sed -e 's|/\.$||'`
 655                 ;;
 656         *) # otherwise relative
 657                 case "${subdir}" in
 658                 .) makesrcdir=${srcdir} ;;
 659                 *) makesrcdir=${invsubdir}${srcdir}/${subdir} ;;
 660                 esac
 661                 ;;
 662     esac
 663
 664     if [ "${subdir}/" != "./" ] ; then
 665         Makefile=${subdir}/Makefile
 666     fi
 667
 668     if [ ! -d ${subdir} ] ; then
 669         if mkdir ${subdir} ; then
 670                 true
 671         else
 672                 echo '***' "${progname}: could not make ${PWD=`pwd`}/${subdir}" 1>&2
 673                 exit 1
 674         fi
 675     fi
 676
 677     case "${removing}" in
 678     "")
 679         case "${subdir}" in
 680         .) ;;
 681         *) eval echo Building in ${subdir} ${redirect} ;;
 682         esac
 683
 684         # FIXME Should this be done recursively ??? (Useful for e.g. gdbtest)
 685         # Set up the list of links to be made.
 686         # ${links} is the list of link names, and ${files} is the list of names to link to.
 687
 688         # Make the links.
 689         configlinks="${links}"
 690         if [ -r ${subdir}/config.status ] ; then
 691                 mv -f ${subdir}/config.status ${subdir}/config.back
 692         fi
 693         while [ -n "${files}" ] ; do
 694                 # set file to car of files, files to cdr of files
 695                 set ${files}; file=$1; shift; files=$*
 696                 set ${links}; link=$1; shift; links=$*
 697
 698                 if [ ! -r ${srcdir}/${file} ] ; then
 699                         echo '***' "${progname}: cannot create a link \"${link}\"," 1>&2
 700                         echo '***' "since the file \"${srcdir}/${file}\" does not exist." 1>&2
 701                         exit 1
 702                 fi
 703
 704                 ${remove} -f ${link}
 705                 # Make a symlink if possible, otherwise try a hard link
 706                 if ${symbolic_link} ${srcdir}/${file} ${link} >/dev/null 2>&1 ; then
 707                         true
 708                 else
 709                         # We need to re-remove the file because Lynx leaves a
 710                         # very strange directory there when it fails an NFS symlink.
 711                         ${remove} -r -f ${link}
 712                         ${hard_link} ${srcdir}/${file} ${link}
 713                 fi
 714                 if [ ! -r ${link} ] ; then
 715                         echo '***' "${progname}: unable to link \"${link}\" to \"${srcdir}/${file}\"." 1>&2
 716                         exit 1
 717                 fi
 718
 719                 echo "Linked \"${link}\" to \"${srcdir}/${file}\"."
 720         done
 721
 722         # Create a .gdbinit file which runs the one in srcdir
 723         # and tells GDB to look there for source files.
 724
 725         if [ -r ${srcdir}/${subdir}/.gdbinit ] ; then
 726                 case ${srcdir} in
 727                 .) ;;
 728                 *) cat > ${subdir}/.gdbinit <<EOF
 729 # ${NO_EDIT}
 730 dir ${makesrcdir}
 731 dir .
 732 source ${makesrcdir}/.gdbinit
 733 EOF
 734                         ;;
 735                 esac
 736         fi
 737
 738         # Install a makefile, and make it set VPATH
 739         # if necessary so that the sources are found.
 740         # Also change its value of srcdir.
 741         # NOTE: Makefile generation constitutes the majority of the time in configure.  Hence, this section has
 742         # been somewhat optimized and is perhaps a bit twisty.
 743
 744         # code is order so as to try to sed the smallest input files we know.
 745
 746         # the four makefile fragments MUST end up in the resulting Makefile in this order:
 747         # package, target, host, and site.  so do these separately because I don't trust the
 748         #  order of sed -e expressions.
 749
 750         if [ -f ${srcdir}/${subdir}/${Makefile_in} ] ; then
 751
 752             # Conditionalize for this site from "Makefile.in" (or whatever it's called) into Makefile.tem
 753             rm -f ${subdir}/Makefile.tem
 754               case "${site}" in
 755               "") cp ${srcdir}/${subdir}/${Makefile_in} ${subdir}/Makefile.tem ;;
 756               *)
 757                       site_makefile_frag=${srcdir}/config/ms-${site}
 758
 759                       if [ -f ${site_makefile_frag} ] ; then
 760                               sed -e "/^####/  r ${site_makefile_frag}" ${srcdir}/${subdir}/${Makefile_in} \
 761                                       > ${subdir}/Makefile.tem
 762                       else
 763                               cp ${srcdir}/${subdir}/${Makefile_in} ${subdir}/Makefile.tem
 764                               site_makefile_frag=
 765                       fi
 766                       ;;
 767             esac
 768             # working copy now in ${subdir}/Makefile.tem
 769
 770             # Conditionalize the makefile for this host.
 771             rm -f ${Makefile}
 772             case "${host_makefile_frag}" in
 773               "") mv ${subdir}/Makefile.tem ${Makefile} ;;
 774               *)
 775                       if [ ! -f ${host_makefile_frag} ] ; then
 776                               host_makefile_frag=${srcdir}/${host_makefile_frag}
 777                       fi
 778                       if [ -f ${host_makefile_frag} ] ; then
 779                               sed -e "/^####/  r ${host_makefile_frag}" ${subdir}/Makefile.tem > ${Makefile}
 780                       else
 781                               echo '***' Expected host makefile fragment \"${host_makefile_frag}\" 1>&2
 782                               echo '***' is missing in ${PWD=`pwd`}. 1>&2
 783                               mv ${subdir}/Makefile.tem ${Makefile}
 784                       fi
 785             esac
 786             # working copy now in ${Makefile}
 787
 788             # Conditionalize the makefile for this target.
 789             rm -f ${subdir}/Makefile.tem
 790             case "${target_makefile_frag}" in
 791               "") mv ${Makefile} ${subdir}/Makefile.tem ;;
 792               *)
 793                       if [ ! -f ${target_makefile_frag} ] ; then
 794                               target_makefile_frag=${srcdir}/${target_makefile_frag}
 795                       fi
 796                       if [ -f ${target_makefile_frag} ] ; then
 797                               sed -e "/^####/  r ${target_makefile_frag}" ${Makefile} > ${subdir}/Makefile.tem
 798                       else
 799                               mv ${Makefile} ${subdir}/Makefile.tem
 800                               target_makefile_frag=
 801                       fi
 802                       ;;
 803             esac
 804             # real copy now in ${subdir}/Makefile.tem
 805
 806             # Conditionalize the makefile for this package.
 807             rm -f ${Makefile}
 808             case "${package_makefile_frag}" in
 809               "") mv ${subdir}/Makefile.tem ${Makefile} ;;
 810               *)
 811                       if [ ! -f ${package_makefile_frag} ] ; then
 812                               package_makefile_frag=${srcdir}/${package_makefile_frag}
 813                       fi
 814                       if [ -f ${package_makefile_frag} ] ; then
 815                               sed -e "/^####/  r ${package_makefile_frag}" ${subdir}/Makefile.tem > ${Makefile}
 816                               rm -f ${subdir}/Makefile.tem
 817                       else
 818                               echo '***' Expected package makefile fragment \"${package_makefile_frag}\" 1>&2
 819                               echo '***' is missing in ${PWD=`pwd`}. 1>&2
 820                               mv ${subdir}/Makefile.tem ${Makefile}
 821                       fi
 822             esac
 823             # working copy now in ${Makefile}
 824
 825             mv ${Makefile} ${subdir}/Makefile.tem
 826
 827             # real copy now in ${subdir}/Makefile.tem
 828
 829             # prepend warning about editting, and a bunch of variables.
 830             rm -f ${Makefile}
 831             cat > ${Makefile} <<EOF
 832 # ${NO_EDIT}
 833 VPATH = ${makesrcdir}
 834 links = ${configlinks}
 835 host_alias = ${host_alias}
 836 host_cpu = ${host_cpu}
 837 host_vendor = ${host_vendor}
 838 host_os = ${host_os}
 839 host_canonical = ${host_cpu}-${host_vendor}-${host_os}
 840 target_alias = ${target_alias}
 841 target_cpu = ${target_cpu}
 842 target_vendor = ${target_vendor}
 843 target_os = ${target_os}
 844 target_canonical = ${target_cpu}-${target_vendor}-${target_os}
 845 EOF
 846             case "${build}" in
 847               "") ;;
 848               *)  cat >> ${Makefile} << EOF
 849 build_alias = ${build_alias}
 850 build_cpu = ${build_cpu}
 851 build_vendor = ${build_vendor}
 852 build_os = ${build_os}
 853 build_canonical = ${build_cpu}-${build_vendor}-${build_os}
 854 EOF
 855             esac
 856
 857             case "${package_makefile_frag}" in
 858               "") ;;
 859               /*) echo package_makefile_frag = ${package_makefile_frag} >>${Makefile} ;;
 860               *)  echo package_makefile_frag = ${invsubdir}${package_makefile_frag} >>${Makefile} ;;
 861             esac
 862
 863             case "${target_makefile_frag}" in
 864               "") ;;
 865               /*) echo target_makefile_frag = ${target_makefile_frag} >>${Makefile} ;;
 866               *)  echo target_makefile_frag = ${invsubdir}${target_makefile_frag} >>${Makefile} ;;
 867             esac
 868
 869             case "${host_makefile_frag}" in
 870               "") ;;
 871               /*) echo host_makefile_frag = ${host_makefile_frag} >>${Makefile} ;;
 872               *)  echo host_makefile_frag = ${invsubdir}${host_makefile_frag} >>${Makefile} ;;
 873             esac
 874
 875             if [ "${site_makefile_frag}" != "" ] ; then
 876                 echo site_makefile_frag = ${invsubdir}${site_makefile_frag} >>${Makefile}
 877             fi
 878
 879             # make sure that some sort of reasonable default exists for these
 880             # two variables
 881             CXX=${CXX-"g++ -O"}
 882             CC=${CC-cc}
 883
 884             # reset prefix, exec_prefix, srcdir, SUBDIRS, NONSUBDIRS,
 885             # remove any form feeds.
 886             if [ -z "${subdirs}" ]; then
 887                 rm -f ${subdir}/Makefile.tem2
 888                 sed -e "s:^SUBDIRS[     ]*=.*$:SUBDIRS = ${configdirs}:" \
 889                     -e "s:^NONSUBDIRS[  ]*=.*$:NONSUBDIRS = ${noconfigdirs}:" \
 890                     ${subdir}/Makefile.tem > ${subdir}/Makefile.tem2
 891                 rm -f ${subdir}/Makefile.tem
 892                 mv ${subdir}/Makefile.tem2 ${subdir}/Makefile.tem
 893             fi
 894             sed -e "s:^prefix[  ]*=.*$:prefix = ${prefix}:" \
 895                     -e "s:^exec_prefix[         ]*=.*$:exec_prefix = ${exec_prefix}:" \
 896                     -e "s:^SHELL[        ]*=.*$:SHELL = ${config_shell}:" \
 897                     -e "s:^srcdir[      ]*=.*$:srcdir = ${makesrcdir}:" \
 898                     -e "s/\f//" \
 899                     -e "s:^program_prefix[      ]*=.*$:program_prefix = ${program_prefix}:" \
 900                     -e "s:^program_suffix[      ]*=.*$:program_suffix = ${program_suffix}:" \
 901                     -e "s:^program_transform_name[      ]*=.*$:program_transform_name = ${program_transform_name}:" \
 902                     -e "s:^tooldir[     ]*=.*$:tooldir = ${tooldir}:" \
 903                     ${subdir}/Makefile.tem >> ${Makefile}
 904             # final copy now in ${Makefile}
 905
 906         else
 907            echo "No Makefile.in found in ${srcdir}/${subdir}, unable to configure" 1>&2
 908         fi
 909
 910         rm -f ${subdir}/Makefile.tem
 911
 912         case "${host_makefile_frag}" in
 913         "") using= ;;
 914         *) using="and \"${host_makefile_frag}\"" ;;
 915         esac
 916
 917         case "${target_makefile_frag}" in
 918         "") ;;
 919         *) using="${using} and \"${target_makefile_frag}\"" ;;
 920         esac
 921
 922         case "${site_makefile_frag}" in
 923         "") ;;
 924         *) using="${using} and \"${site_makefile_frag}\"" ;;
 925         esac
 926
 927         newusing=`echo "${using}" | sed 's/and/using/'`
 928         using=${newusing}
 929         echo "Created \"${Makefile}\" in" ${PWD=`pwd`} ${using}
 930
 931         . ${tmpfile}.pos
 932
 933         # describe the chosen configuration in config.status.
 934         # Make that file a shellscript which will reestablish
 935         # the same configuration.  Used in Makefiles to rebuild
 936         # Makefiles.
 937
 938         case "${norecursion}" in
 939         "") arguments="${arguments} --norecursion" ;;
 940         *) ;;
 941         esac
 942
 943         if [ ${subdir} = . ] ; then
 944             echo "#!/bin/sh
 945 # ${NO_EDIT}
 946 # This directory was configured as follows:
 947 ${progname}" ${arguments}  "
 948 # ${using}" > ${subdir}/config.new
 949         else
 950             echo "#!/bin/sh
 951 # ${NO_EDIT}
 952 # This directory was configured as follows:
 953 cd ${invsubdir}
 954 ${progname}" ${arguments}  "
 955 # ${using}" > ${subdir}/config.new
 956         fi
 957         chmod a+x ${subdir}/config.new
 958         if [ -r ${subdir}/config.back ] ; then
 959                 mv -f ${subdir}/config.back ${subdir}/config.status
 960         fi
 961         ${moveifchange} ${subdir}/config.new ${subdir}/config.status
 962         ;;
 963
 964     *)  rm -f ${Makefile} ${subdir}/config.status ${links} ;;
 965     esac
 966 done
 967
 968 # If there are subdirectories, then recur.
 969 if [ -z "${norecursion}" -a -n "${configdirs}" ] ; then
 970         for configdir in ${configdirs} ; do
 971
 972                 if [ -d ${srcdir}/${configdir} ] ; then
 973                         eval echo Configuring ${configdir}... ${redirect}
 974                         case "${srcdir}" in
 975                         ".") ;;
 976                         *)
 977                                 if [ ! -d ./${configdir} ] ; then
 978                                         if mkdir ./${configdir} ; then
 979                                                 true
 980                                         else
 981                                                 echo '***' "${progname}: could not make ${PWD=`pwd`}/${configdir}" 1>&2
 982                                                 exit 1
 983                                         fi
 984                                 fi
 985                                 ;;
 986                         esac
 987
 988                         POPDIR=${PWD=`pwd`}
 989                         cd ${configdir}
 990
 991 ### figure out what to do with srcdir
 992                         case "${srcdir}" in
 993                         ".") newsrcdir=${srcdir} ;; # no -srcdir option.  We're building in place.
 994                         /*) # absolute path
 995                                 newsrcdir=${srcdir}/${configdir}
 996                                 srcdiroption="--srcdir=${newsrcdir}"
 997                                 ;;
 998                         *) # otherwise relative
 999                                 newsrcdir=../${srcdir}/${configdir}
1000                                 srcdiroption="--srcdir=${newsrcdir}"
1001                                 ;;
1002                         esac
1003
1004                         # Handle --cache-file=../XXX
1005                         case "${cache_file}" in
1006                         "") # empty
1007                                 ;;
1008                         /*) # absolute path
1009                                 cache_file_option="--cache-file=${cache_file}"
1010                                 ;;
1011                         *) # relative path
1012                                 cache_file_option="--cache-file=../${cache_file}"
1013                                 ;;
1014                         esac
1015
1016 ### check for guested configure, otherwise fix possibly relative progname
1017                         if [ -f ${newsrcdir}/configure ] ; then
1018                                 recprog=${newsrcdir}/configure
1019                         elif [ -f ${newsrcdir}/configure.in ] ; then
1020                                 case "${progname}" in
1021                                 /*)     recprog=${progname} ;;
1022                                 *)      recprog=../${progname} ;;
1023                                 esac
1024                         else
1025                                 eval echo No configuration information in ${configdir} ${redirect}
1026                                 recprog=
1027                         fi
1028
1029 ### The recursion line is here.
1030                         if [ ! -z "${recprog}" ] ; then
1031                                 if eval ${config_shell} ${recprog} ${verbose} ${buildopt} --host=${host_alias} --target=${target_alias} \
1032                                         ${prefixoption} ${tmpdiroption} ${exec_prefixoption} \
1033                                         ${srcdiroption} ${program_prefixoption} ${program_suffixoption} ${program_transform_nameoption} ${site_option} ${withoptions} ${withoutoptions} ${enableoptions} ${disableoptions} ${cache_file_option} ${removing} ${other_options} ${redirect} ; then
1034                                         true
1035                                 else
1036                                         echo Configure in `pwd` failed, exiting. 1>&2
1037                                         exit 1
1038                                 fi
1039                         fi
1040
1041                         cd ${POPDIR}
1042                 fi
1043         done
1044 fi
1045
1046 # Perform the same cleanup as the trap handler, minus the "exit 1" of course,
1047 # and reset the trap handler.
1048 rm -f ${tmpfile}.com ${tmpfile}.tgt ${tmpfile}.hst ${tmpfile}.pos
1049 trap 0
1050
1051 exit 0
1052
1053 #
1054 # Local Variables:
1055 # fill-column: 131
1056 # End:
1057 #
1058
1059 # end of configure