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, 1990, 1991, 1992, 1993 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 package_makefile_frag=
  64 prefix=/usr/local
  65 progname=
  66 program_prefix=
  67 program_prefixoption=
  68 program_suffix=
  69 program_suffixoption=
  70 program_transform_name=
  71 program_transform_nameoption=
  72 redirect=">/dev/null"
  73 removing=
  74 site=
  75 site_makefile_frag=
  76 site_option=
  77 srcdir=
  78 srctrigger=
  79 subdirs=
  80 target_alias=NOTARGET
  81 target_makefile_frag=
  82 undefs=NOUNDEFS
  83 version="$Revision$"
  84 x11=default
  85
  86 ### we might need to use some other shell than /bin/sh for running subshells
  87 #
  88 config_shell=${CONFIG_SHELL-/bin/sh}
  89
  90 NO_EDIT="This file was generated automatically by configure.  Do not edit."
  91
  92 ## this is a little touchy and won't always work, but...
  93 ##
  94 ## if the argv[0] starts with a slash then it is an absolute name that can (and
  95 ## must) be used as is.
  96 ##
  97 ## otherwise, if argv[0] has no slash in it, we can assume that it is on the
  98 ## path.  Since PATH might include "." we also add `pwd` to the end of PATH.
  99 ##
 100
 101 progname=$0
 102 # if PWD already has a value, it is probably wrong.
 103 if [ -n "$PWD" ]; then PWD=`pwd`; fi
 104
 105 case "${progname}" in
 106 /*) ;;
 107 */*) ;;
 108 *)
 109         PATH=$PATH:${PWD=`pwd`} ; export PATH
 110         ;;
 111 esac
 112
 113 # Loop over all args
 114
 115 while :
 116 do
 117
 118 # Break out if there are no more args
 119         case $# in
 120         0)
 121                 break 2
 122                 ;;
 123         esac
 124
 125 # Get the first arg, and shuffle
 126         option=$1
 127         shift
 128
 129 # Make all options have two hyphens
 130         orig_option=$option     # Save original for error messages
 131         case $option in
 132         --*) ;;
 133         -*) option=-$option ;;
 134         esac
 135
 136 # Split out the argument for options that take them
 137         case $option in
 138         --*=*)
 139                 optarg=`echo $option | sed -e 's/^[^=]*=//'`
 140                 ;;
 141 # These options have mandatory values.  Since we didn't find an = sign,
 142 # the value must be in the next argument
 143         --b* | --e* | --ho* | --pre* | --program-p* | --program-s* | --program-t* | --si* | --sr* | --ta* | --tm*)
 144                 optarg=$1
 145                 shift
 146                 ;;
 147         esac
 148
 149 # Now, process the options
 150         case $option in
 151
 152         --build* | --b*)
 153                 case "$build_alias" in
 154                 "") build_alias=$optarg ;;
 155                 *) echo '***' Can only configure for one build machine at a time.  1>&2
 156                    fatal=yes
 157                    ;;
 158                 esac
 159                 ;;
 160         --exec-prefix* | --e*)
 161                 exec_prefix=$optarg
 162                 exec_prefixoption="--exec-prefix=$optarg"
 163                 ;;
 164         --gas | --g*)
 165                 gas=yes
 166                 ;;
 167         --help | --he*)
 168                 fatal=true
 169                 ;;
 170         --host* | --ho*)
 171                 case $host_alias in
 172                 NOHOST) host_alias=$optarg ;;
 173                 *) echo '***' Can only configure for one host at a time.  1>&2
 174                    fatal=yes
 175                    ;;
 176                 esac
 177                 ;;
 178         --nfp | --nf*)
 179                 floating_point=no
 180                 ;;
 181         --norecursion | --no*)
 182                 norecursion=true
 183                 ;;
 184         --prefix* | --pre*)
 185                 prefix=$optarg
 186                 prefixoption="--prefix=$optarg"
 187                 ;;
 188         --program-prefix* | --program-p*)
 189                 program_prefix=$optarg
 190                 program_prefixoption="--program-prefix=$optarg"
 191                 ;;
 192         --program-suffix* | --program-s*)
 193                 program_suffix=$optarg
 194                 program_suffixoption="--program-suffix=$optarg"
 195                 ;;
 196         --program-transform-name* | --program-t*)
 197                 # Double any backslashes or dollar signs in the argument
 198                 program_transform_name="${program_transform_name} -e `echo ${optarg} | sed -e 's/\\\\/\\\\\\\\/g' -e 's/\\\$/$$/g'`"
 199                 program_transform_nameoption="--program-transform-nameoption='$optarg'"
 200                 ;;
 201         --rm)
 202                 removing=--rm
 203                 ;;
 204         --site* | --si*)
 205                 site=$optarg
 206                 site_option="--site=$optarg"
 207                 ;;
 208         --srcdir*/ | --sr*/)
 209                 # Remove trailing slashes.  Otherwise, when the file name gets
 210                 # bolted into an object file as debug info, it has two slashes in
 211                 # it.  Ordinarily this is ok, but emacs takes double slash to
 212                 # mean "forget the first part".
 213                 srcdir=`echo $optarg | sed -e 's:/$::'`
 214                 ;;
 215         --srcdir* | --sr*)
 216                 srcdir=$optarg
 217                 ;;
 218         --target* | --ta*)
 219                 case $target_alias in
 220                 NOTARGET) target_alias=$optarg ;;
 221                 *) echo '***' Can only configure for one target at a time.  1>&2
 222                    fatal=yes
 223                    ;;
 224                 esac
 225                 ;;
 226         --tmpdir* | --tm*)
 227                 TMPDIR=$optarg
 228                 tmpdiroption="--tmpdir=$optarg"
 229                 ;;
 230         --verbose | --v | --verb*)
 231                 redirect=
 232                 verbose=--verbose
 233                 ;;
 234         --version | --V | --vers*)
 235                 echo "This is Cygnus Configure version" `echo ${version} | sed 's/[ $:]//g'`
 236                 exit 0
 237                 ;;
 238         --with-*)
 239                 case "$option" in
 240                 *=*)    ;;
 241                 *)      optarg=yes ;;
 242                 esac
 243
 244                 withopt=`echo ${option} | sed 's:^--::;s:=.*$::;s:-:_:g'`
 245                 eval $withopt="$optarg"
 246                 withoptions="$withoptions $option"
 247                 ;;
 248         --without-*)
 249                 withopt=`echo ${option} | sed 's:^--::;s:out::;s:-:_:g'`
 250                 eval $withopt=no
 251                 withoutoptions="$withoutoptions $option"
 252                 ;;
 253         --x)    ;;
 254         --*)
 255                 exec 1>&2
 256                 echo
 257                 echo "Unrecognized option: \"$orig_option\"".
 258                 echo
 259                 fatal=true
 260                 ;;
 261         *)
 262                 case $undefs in
 263                 NOUNDEFS) undefs=$option ;;
 264                 *) echo '***' Can only configure for one host and one target at a time.  1>&2
 265                    fatal=yes
 266                    ;;
 267                 esac
 268                 ;;
 269         esac
 270 done
 271
 272 # process host and target
 273
 274 # The following section does some error checking, and then does defaulting for
 275 # the host and target.  The inputs are host, which comes from the --host
 276 # option, target, which comes from the --target options, and undefs, which is
 277 # an argument that isn't an option (cuz it doesn't start with --).  Ie:
 278 #       configure --host HOST --target TARGET --opt1 UNDEFS --opt2 --opt3 ...
 279 #
 280 # The first rule is that you aren't allowed to specify --host, --target and
 281 # undefs at the same time.  After that, we do defaulting.  The host defaults to
 282 # undefs.  Ie:
 283 #       configure --target TARGET --opt1 HOST --opt2
 284 #
 285 # If there are no undefs, the host defaults to the current host (as determined
 286 # by config.guess).
 287 #
 288 # Target defaults to undefs.  If undefs wasn't specified, then it defaults to
 289 # host.
 290
 291 case "${fatal}" in
 292 "")
 293         # Make sure that host, target & undefs aren't all specified at the
 294         # same time.
 295         case $host_alias---$target_alias---$undefs in
 296         NOHOST---*---* | *---NOTARGET---* | *---*---NOUNDEFS)
 297                 ;;
 298         *) echo '***' Can only configure for one host and one target at a time.  1>&2
 299            fatal=yes
 300            break 2
 301                 ;;
 302         esac
 303
 304         # Now, do defaulting for host.
 305         case $host_alias in
 306         NOHOST)
 307                 case $undefs in
 308                 NOUNDEFS)
 309                         # Neither --host option nor undefs were present.
 310                         # Call config.guess.
 311                         guesssys=`echo ${progname} | sed 's/configure$/config.guess/'`
 312                         if host_alias=`${guesssys}`
 313                         then
 314                                 echo "Configuring for a ${host_alias} host." 1>&2
 315                                 arguments="--host=$host_alias $arguments"
 316                         else
 317                                 echo 'Config.guess failed to determine the host type.  You need to specify one.' 1>&2
 318                                 fatal=yes
 319                         fi
 320                         ;;
 321                 *)
 322                         host_alias=$undefs
 323                         ;;
 324                 esac
 325         esac
 326
 327         # Do defaulting for target.  If --target option isn't present, default
 328         # to undefs.  If undefs isn't present, default to host.
 329         case $target_alias in
 330         NOTARGET)
 331                 case $undefs in
 332                 NOUNDEFS)
 333                         target_alias=$host_alias
 334                         ;;
 335                 *)
 336                         target_alias=$undefs
 337                         ;;
 338                 esac
 339         esac
 340         ;;
 341 *) ;;
 342 esac
 343
 344 if [ -n "${fatal}" -o "${host_alias}" = "help" ] ; then
 345         exec 1>&2
 346         echo Usage: configure HOST
 347         echo
 348         echo Options: [defaults in brackets]
 349         echo ' --prefix=MYDIR            configure for installation of host dependent files into MYDIR. ["/usr/local"]'
 350         echo ' --exec-prefix=MYDIR       configure for installation of host dependent files into MYDIR. ["/usr/local"]'
 351         echo ' --help                    print this message. [normal config]'
 352         echo ' --build=BUILD             configure for building on BUILD.  [BUILD=HOST]'
 353         echo ' --host=HOST               configure for HOST.  [determined via config.guess]'
 354         echo ' --norecursion             configure this directory only. [recurse]'
 355         echo ' --program-prefix=FOO      install programs with FOO prepended to their names. [ "" ]'
 356         echo ' --program-suffix=FOO      install programs with FOO appended to their names. [ "" ]'
 357         echo ' --program-transform-name=FOO install programs with names transformed by sed pattern FOO. [ "" ]'
 358         echo ' --site=SITE               configure with site specific makefile for SITE'
 359         echo ' --srcdir=DIR              find the sources in DIR. ["." or ".."]'
 360         echo ' --target=TARGET   configure for TARGET.  [TARGET = HOST]'
 361         echo ' --tmpdir=TMPDIR   create temporary files in TMPDIR.  [ TMPDIR = "/tmp" ]'
 362         echo ' --nfp                     configure the compilers default to soft floating point. [hard float]'
 363         echo ' --with-FOO, --with-FOO=BAR specify that FOO is available'
 364         echo ' --without-FOO             specify that FOO is NOT available'
 365         echo
 366         echo 'Where HOST and TARGET are something like "vax", "sun3", "encore", etc.'
 367         echo
 368         if [ -r config.status ] ; then
 369                 cat config.status
 370         fi
 371
 372         exit 1
 373 fi
 374
 375 configsub=`echo ${progname} | sed 's/configure$/config.sub/'`
 376 moveifchange=`echo ${progname} | sed 's/configure$/move-if-change/'`
 377
 378 # this is a hack.  sun4 must always be a valid host alias or this will fail.
 379 if ${configsub} sun4 >/dev/null 2>&1 ; then
 380         true
 381 else
 382         echo '***' cannot find config.sub.  1>&2
 383         exit 1
 384 fi
 385
 386 touch config.junk
 387 if ${moveifchange} config.junk config.trash ; then
 388         true
 389 else
 390         echo '***' cannot find move-if-change.  1>&2
 391         exit 1
 392 fi
 393 rm -f config.junk config.trash
 394
 395 case "${srcdir}" in
 396 "")
 397         if [ -r configure.in ] ; then
 398                 srcdir=.
 399         else
 400                 if [ -r ${progname}.in ] ; then
 401                         srcdir=`echo ${progname} | sed 's:/configure$::'`
 402                 else
 403                         echo '***' "Can't find configure.in.  Try using --srcdir=some_dir"  1>&2
 404                         exit 1
 405                 fi
 406         fi
 407         ;;
 408 *) ;;
 409 esac
 410
 411 ### warn about some conflicting configurations.
 412
 413 case "${srcdir}" in
 414 ".") ;;
 415 *)
 416         if [ -f ${srcdir}/config.status ] ; then
 417                 echo '***' Cannot configure here in \"${PWD=`pwd`}\" when \"${srcdir}\" is currently configured. 1>&2
 418                 exit 1
 419         fi
 420 esac
 421
 422 # default exec_prefix
 423 case "${exec_prefix}" in
 424 "") exec_prefix="\$(prefix)" ;;
 425 *) ;;
 426 esac
 427
 428 ### break up ${srcdir}/configure.in.
 429 case "`grep '^# per\-host:' ${srcdir}/configure.in`" in
 430 "")
 431         echo '***' ${srcdir}/configure.in has no \"per-host:\" line. 1>&2
 432         exit 1
 433         ;;
 434 *) ;;
 435 esac
 436
 437 case "`grep '^# per\-target:' ${srcdir}/configure.in`" in
 438 "")
 439         echo '***' ${srcdir}/configure.in has no \"per-target:\" line. 1>&2
 440         exit 1
 441         ;;
 442 *) ;;
 443 esac
 444
 445 case "${TMPDIR}" in
 446 "") TMPDIR=/tmp ; export TMPDIR ;;
 447 *) ;;
 448 esac
 449
 450 # keep this filename short for &%*%$*# 14 char file names
 451 tmpfile=${TMPDIR}/cONf$$
 452 trap "rm -f ${tmpfile}.com ${tmpfile}.tgt ${tmpfile}.hst ${tmpfile}.pos" 0
 453
 454 # split ${srcdir}/configure.in into common, per-host, per-target,
 455 # and post-target parts.  Post-target is optional.
 456 sed -e '/^# per\-host:/,$d' ${srcdir}/configure.in > ${tmpfile}.com
 457 sed -e '1,/^# per\-host:/d' -e '/^# per\-target:/,$d' ${srcdir}/configure.in > ${tmpfile}.hst
 458 if grep '^# post-target:' ${srcdir}/configure.in >/dev/null ; then
 459   sed -e '1,/^# per\-target:/d' -e '/^# post\-target:/,$d' ${srcdir}/configure.in > ${tmpfile}.tgt
 460   sed -e '1,/^# post\-target:/d' ${srcdir}/configure.in > ${tmpfile}.pos
 461 else
 462   sed -e '1,/^# per\-target:/d' ${srcdir}/configure.in > ${tmpfile}.tgt
 463   echo >${tmpfile}.pos
 464 fi
 465
 466 ### do common part of configure.in
 467
 468 . ${tmpfile}.com
 469
 470 # some sanity checks on configure.in
 471 case "${srctrigger}" in
 472 "")
 473         echo '***' srctrigger not set in ${PWD=`pwd`}/configure.in.  1>&2
 474         exit 1
 475         ;;
 476 *) ;;
 477 esac
 478
 479 case "${build_alias}" in
 480 "")     ;;
 481 *)
 482         result=`${configsub} ${build_alias}`
 483         buildopt="--build=${build_alias}"
 484         build_cpu=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\1/'`
 485         build_vendor=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\2/'`
 486         build_os=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\3/'`
 487         build=${build_cpu}-${build_vendor}-${build_os}
 488         ;;
 489 esac
 490
 491 result=`${configsub} ${host_alias}`
 492 host_cpu=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\1/'`
 493 host_vendor=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\2/'`
 494 host_os=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\3/'`
 495 host=${host_cpu}-${host_vendor}-${host_os}
 496
 497 . ${tmpfile}.hst
 498
 499 result=`${configsub} ${target_alias}`
 500 target_cpu=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\1/'`
 501 target_vendor=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\2/'`
 502 target_os=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\3/'`
 503 target=${target_cpu}-${target_vendor}-${target_os}
 504
 505 . ${tmpfile}.tgt
 506
 507 # Find the source files, if location was not specified.
 508 case "${srcdir}" in
 509 "")
 510         srcdirdefaulted=1
 511         srcdir=.
 512         if [ ! -r ${srctrigger} ] ; then
 513                 srcdir=..
 514         fi
 515         ;;
 516 *) ;;
 517 esac
 518
 519 if [ ! -r ${srcdir}/${srctrigger} ] ; then
 520         case "${srcdirdefaulted}" in
 521         "") echo '***' "${progname}: Can't find ${srcname} sources in ${PWD=`pwd`}/${srcdir}" 1>&2 ;;
 522         *)  echo '***' "${progname}: Can't find ${srcname} sources in ${PWD=`pwd`}/. or ${PWD=`pwd`}/.." 1>&2 ;;
 523         esac
 524
 525         echo '***' \(At least ${srctrigger} is missing.\) 1>&2
 526         exit 1
 527 fi
 528
 529 # Some systems (e.g., one of the i386-aix systems the gas testers are
 530 # using) don't handle "\$" correctly, so don't use it here.
 531 tooldir='$(exec_prefix)'/${target_alias}
 532
 533 if [ "${host_alias}" != "${target_alias}" ] ; then
 534     if [ "${program_prefixoption}" = "" ] ; then
 535         if [ "${program_suffixoption}" = "" ] ; then
 536             if [ "${program_transform_nameoption}" = "" ] ; then
 537                 program_prefix=${target_alias}- ;
 538             fi
 539         fi
 540     fi
 541 fi
 542
 543 # Merge program_prefix and program_suffix onto program_transform_name
 544 # Use a double $ so that make ignores it
 545 if [ "${program_suffix}" != "" ] ; then
 546     program_transform_name="-e s,\$\$,${program_suffix}, ${program_transform_name}"
 547 fi
 548
 549 if [ "${program_prefix}" != "" ] ; then
 550     program_transform_name="-e s,^,${program_prefix}, ${program_transform_name}"
 551 fi
 552
 553 for subdir in . ${subdirs} ; do
 554
 555     # ${subdir} is relative path from . to the directory we're currently
 556     # configuring.
 557     # ${invsubdir} is inverse of ${subdir), *with* trailing /, if needed.
 558     invsubdir=`echo ${subdir}/ | sed -e 's|\./||g' -e 's|[^/]*/|../|g'`
 559
 560     ### figure out what to do with srcdir
 561     case "${srcdir}" in
 562         ".")  # no -srcdir option.  We're building in place.
 563                 makesrcdir=. ;;
 564         /*) # absolute path
 565                 makesrcdir=`echo ${srcdir}/${subdir} | sed -e 's|/\.$||'`
 566                 ;;
 567         *) # otherwise relative
 568                 case "${subdir}" in
 569                 .) makesrcdir=${srcdir} ;;
 570                 *) makesrcdir=${invsubdir}${srcdir}/${subdir} ;;
 571                 esac
 572                 ;;
 573     esac
 574
 575     if [ "${subdir}/" != "./" ] ; then
 576         Makefile=${subdir}/Makefile
 577     fi
 578
 579     if [ ! -d ${subdir} ] ; then
 580         if mkdir ${subdir} ; then
 581                 true
 582         else
 583                 echo '***' "${progname}: could not make ${PWD=`pwd`}/${subdir}" 1>&2
 584                 exit 1
 585         fi
 586     fi
 587
 588     case "${removing}" in
 589     "")
 590         case "${subdir}" in
 591         .) ;;
 592         *) eval echo Building in ${subdir} ${redirect} ;;
 593         esac
 594
 595         # FIXME Should this be done recursively ??? (Useful for e.g. gdbtest)
 596         # Set up the list of links to be made.
 597         # ${links} is the list of link names, and ${files} is the list of names to link to.
 598
 599         # Make the links.
 600         configlinks="${links}"
 601         if [ -r ${subdir}/config.status ] ; then
 602                 mv -f ${subdir}/config.status ${subdir}/config.back
 603         fi
 604         while [ -n "${files}" ] ; do
 605                 # set file to car of files, files to cdr of files
 606                 set ${files}; file=$1; shift; files=$*
 607                 set ${links}; link=$1; shift; links=$*
 608
 609                 if [ ! -r ${srcdir}/${file} ] ; then
 610                         echo '***' "${progname}: cannot create a link \"${link}\"," 1>&2
 611                         echo '***' "since the file \"${srcdir}/${file}\" does not exist." 1>&2
 612                         exit 1
 613                 fi
 614
 615                 ${remove} -f ${link}
 616                 # Make a symlink if possible, otherwise try a hard link
 617                 ${symbolic_link} ${srcdir}/${file} ${link} 2>/dev/null || ${hard_link} ${srcdir}/${file} ${link}
 618
 619                 if [ ! -r ${link} ] ; then
 620                         echo '***' "${progname}: unable to link \"${link}\" to \"${srcdir}/${file}\"." 1>&2
 621                         exit 1
 622                 fi
 623
 624                 echo "Linked \"${link}\" to \"${srcdir}/${file}\"."
 625         done
 626
 627         # Create a .gdbinit file which runs the one in srcdir
 628         # and tells GDB to look there for source files.
 629
 630         if [ -r ${srcdir}/${subdir}/.gdbinit ] ; then
 631                 case ${srcdir} in
 632                 .) ;;
 633                 *) cat > ${subdir}/.gdbinit <<EOF
 634 # ${NO_EDIT}
 635 dir .
 636 dir ${makesrcdir}
 637 source ${makesrcdir}/.gdbinit
 638 EOF
 639                         ;;
 640                 esac
 641         fi
 642
 643         # Install a makefile, and make it set VPATH
 644         # if necessary so that the sources are found.
 645         # Also change its value of srcdir.
 646         # NOTE: Makefile generation constitutes the majority of the time in configure.  Hence, this section has
 647         # been somewhat optimized and is perhaps a bit twisty.
 648
 649         # code is order so as to try to sed the smallest input files we know.
 650
 651         # the four makefile fragments MUST end up in the resulting Makefile in this order:
 652         # package, target, host, and site.  so do these separately because I don't trust the
 653         #  order of sed -e expressions.
 654
 655         if [ -f ${srcdir}/${subdir}/${Makefile_in} ] ; then
 656
 657             # Conditionalize for this site from "Makefile.in" (or whatever it's called) into Makefile.tem
 658             rm -f ${subdir}/Makefile.tem
 659               case "${site}" in
 660               "") cp ${srcdir}/${subdir}/${Makefile_in} ${subdir}/Makefile.tem ;;
 661               *)
 662                       site_makefile_frag=${srcdir}/config/ms-${site}
 663
 664                       if [ -f ${site_makefile_frag} ] ; then
 665                               sed -e "/^####/  r ${site_makefile_frag}" ${srcdir}/${subdir}/${Makefile_in} \
 666                                       > ${subdir}/Makefile.tem
 667                       else
 668                               cp ${srcdir}/${subdir}/${Makefile_in} ${subdir}/Makefile.tem
 669                               site_makefile_frag=
 670                       fi
 671                       ;;
 672             esac
 673             # working copy now in ${subdir}/Makefile.tem
 674
 675             # Conditionalize the makefile for this host.
 676             rm -f ${Makefile}
 677             case "${host_makefile_frag}" in
 678               "") mv ${subdir}/Makefile.tem ${Makefile} ;;
 679               *)
 680                       if [ ! -f ${host_makefile_frag} ] ; then
 681                               host_makefile_frag=${srcdir}/${host_makefile_frag}
 682                       fi
 683                       if [ -f ${host_makefile_frag} ] ; then
 684                               sed -e "/^####/  r ${host_makefile_frag}" ${subdir}/Makefile.tem > ${Makefile}
 685                       else
 686                               echo '***' Expected host makefile fragment \"${host_makefile_frag}\" 1>&2
 687                               echo '***' is missing in ${PWD=`pwd`}. 1>&2
 688                               mv ${subdir}/Makefile.tem ${Makefile}
 689                       fi
 690             esac
 691             # working copy now in ${Makefile}
 692
 693             # Conditionalize the makefile for this target.
 694             rm -f ${subdir}/Makefile.tem
 695             case "${target_makefile_frag}" in
 696               "") mv ${Makefile} ${subdir}/Makefile.tem ;;
 697               *)
 698                       if [ ! -f ${target_makefile_frag} ] ; then
 699                               target_makefile_frag=${srcdir}/${target_makefile_frag}
 700                       fi
 701                       if [ -f ${target_makefile_frag} ] ; then
 702                               sed -e "/^####/  r ${target_makefile_frag}" ${Makefile} > ${subdir}/Makefile.tem
 703                       else
 704                               mv ${Makefile} ${subdir}/Makefile.tem
 705                               target_makefile_frag=
 706                       fi
 707                       ;;
 708             esac
 709             # real copy now in ${subdir}/Makefile.tem
 710
 711             # Conditionalize the makefile for this package.
 712             rm -f ${Makefile}
 713             case "${package_makefile_frag}" in
 714               "") mv ${subdir}/Makefile.tem ${Makefile} ;;
 715               *)
 716                       if [ ! -f ${package_makefile_frag} ] ; then
 717                               package_makefile_frag=${srcdir}/${package_makefile_frag}
 718                       fi
 719                       if [ -f ${package_makefile_frag} ] ; then
 720                               sed -e "/^####/  r ${package_makefile_frag}" ${subdir}/Makefile.tem > ${Makefile}
 721                       else
 722                               echo '***' Expected package makefile fragment \"${package_makefile_frag}\" 1>&2
 723                               echo '***' is missing in ${PWD=`pwd`}. 1>&2
 724                               mv ${subdir}/Makefile.tem ${Makefile}
 725                       fi
 726             esac
 727             # working copy now in ${Makefile}
 728
 729             mv ${Makefile} ${subdir}/Makefile.tem
 730
 731             # real copy now in ${subdir}/Makefile.tem
 732
 733             # prepend warning about editting, and a bunch of variables.
 734             rm -f ${Makefile}
 735             cat > ${Makefile} <<EOF
 736 # ${NO_EDIT}
 737 VPATH = ${makesrcdir}
 738 links = ${configlinks}
 739 host_alias = ${host_alias}
 740 host_cpu = ${host_cpu}
 741 host_vendor = ${host_vendor}
 742 host_os = ${host_os}
 743 host_canonical = ${host_cpu}-${host_vendor}-${host_os}
 744 target_alias = ${target_alias}
 745 target_cpu = ${target_cpu}
 746 target_vendor = ${target_vendor}
 747 target_os = ${target_os}
 748 target_canonical = ${target_cpu}-${target_vendor}-${target_os}
 749 EOF
 750             case "${build}" in
 751               "") ;;
 752               *)  cat >> ${Makefile} << EOF
 753 build_alias = ${build_alias}
 754 build_cpu = ${build_cpu}
 755 build_vendor = ${build_vendor}
 756 build_os = ${build_os}
 757 build_canonical = ${build_cpu}-${build_vendor}-${build_os}
 758 EOF
 759             esac
 760
 761             case "${package_makefile_frag}" in
 762               "") ;;
 763               /*) echo package_makefile_frag = ${package_makefile_frag} >>${Makefile} ;;
 764               *)  echo package_makefile_frag = ${invsubdir}${package_makefile_frag} >>${Makefile} ;;
 765             esac
 766
 767             case "${target_makefile_frag}" in
 768               "") ;;
 769               /*) echo target_makefile_frag = ${target_makefile_frag} >>${Makefile} ;;
 770               *)  echo target_makefile_frag = ${invsubdir}${target_makefile_frag} >>${Makefile} ;;
 771             esac
 772
 773             case "${host_makefile_frag}" in
 774               "") ;;
 775               /*) echo host_makefile_frag = ${host_makefile_frag} >>${Makefile} ;;
 776               *)  echo host_makefile_frag = ${invsubdir}${host_makefile_frag} >>${Makefile} ;;
 777             esac
 778
 779             if [ "${site_makefile_frag}" != "" ] ; then
 780                 echo site_makefile_frag = ${invsubdir}${site_makefile_frag} >>${Makefile}
 781             fi
 782
 783             # make sure that some sort of reasonable default exists for these
 784             # two variables
 785             CXX=${CXX-"g++ -O"}
 786             CC=${CC-cc}
 787
 788             # reset prefix, exec_prefix, srcdir, SUBDIRS, NONSUBDIRS,
 789             # remove any form feeds.
 790             if [ -z "${subdirs}" ]; then
 791                 rm -f ${subdir}/Makefile.tem2
 792                 sed -e "s:^SUBDIRS[     ]*=.*$:SUBDIRS = ${configdirs}:" \
 793                     -e "s:^NONSUBDIRS[  ]*=.*$:NONSUBDIRS = ${noconfigdirs}:" \
 794                     ${subdir}/Makefile.tem > ${subdir}/Makefile.tem2
 795                 rm -f ${subdir}/Makefile.tem
 796                 mv ${subdir}/Makefile.tem2 ${subdir}/Makefile.tem
 797             fi
 798             sed -e "s:^prefix[  ]*=.*$:prefix = ${prefix}:" \
 799                     -e "s:^exec_prefix[         ]*=.*$:exec_prefix = ${exec_prefix}:" \
 800                     -e "s:^SHELL[        ]*=.*$:SHELL = ${config_shell}:" \
 801                     -e "s:^srcdir[      ]*=.*$:srcdir = ${makesrcdir}:" \
 802                     -e "s/\f//" \
 803                     -e "s:^program_prefix[      ]*=.*$:program_prefix = ${program_prefix}:" \
 804                     -e "s:^program_suffix[      ]*=.*$:program_suffix = ${program_suffix}:" \
 805                     -e "s:^program_transform_name[      ]*=.*$:program_transform_name = ${program_transform_name}:" \
 806                     -e "s:^tooldir[     ]*=.*$:tooldir = ${tooldir}:" \
 807                     ${subdir}/Makefile.tem >> ${Makefile}
 808             # final copy now in ${Makefile}
 809
 810         else
 811            echo "No Makefile.in found in ${srcdir}/${subdir}, unable to configure" 1>&2
 812         fi
 813
 814         rm -f ${subdir}/Makefile.tem
 815
 816         case "${host_makefile_frag}" in
 817         "") using= ;;
 818         *) using="and \"${host_makefile_frag}\"" ;;
 819         esac
 820
 821         case "${target_makefile_frag}" in
 822         "") ;;
 823         *) using="${using} and \"${target_makefile_frag}\"" ;;
 824         esac
 825
 826         case "${site_makefile_frag}" in
 827         "") ;;
 828         *) using="${using} and \"${site_makefile_frag}\"" ;;
 829         esac
 830
 831         newusing=`echo "${using}" | sed 's/and/using/'`
 832         using=${newusing}
 833         echo "Created \"${Makefile}\" in" ${PWD=`pwd`} ${using}
 834
 835         . ${tmpfile}.pos
 836
 837         # describe the chosen configuration in config.status.
 838         # Make that file a shellscript which will reestablish
 839         # the same configuration.  Used in Makefiles to rebuild
 840         # Makefiles.
 841
 842         case "${norecursion}" in
 843         "") arguments="${arguments} --norecursion" ;;
 844         *) ;;
 845         esac
 846
 847         if [ ${subdir} = . ] ; then
 848             echo "#!/bin/sh
 849 # ${NO_EDIT}
 850 # This directory was configured as follows:
 851 ${progname}" ${arguments}  "
 852 # ${using}" > ${subdir}/config.new
 853         else
 854             echo "#!/bin/sh
 855 # ${NO_EDIT}
 856 # This directory was configured as follows:
 857 cd ${invsubdir}
 858 ${progname}" ${arguments}  "
 859 # ${using}" > ${subdir}/config.new
 860         fi
 861         chmod a+x ${subdir}/config.new
 862         if [ -r ${subdir}/config.back ] ; then
 863                 mv -f ${subdir}/config.back ${subdir}/config.status
 864         fi
 865         ${moveifchange} ${subdir}/config.new ${subdir}/config.status
 866         ;;
 867
 868     *)  rm -f ${Makefile} ${subdir}/config.status ${links} ;;
 869     esac
 870 done
 871
 872 # If there are subdirectories, then recur.
 873 if [ -z "${norecursion}" -a -n "${configdirs}" ] ; then
 874         for configdir in ${configdirs} ; do
 875
 876                 if [ -d ${srcdir}/${configdir} ] ; then
 877                         eval echo Configuring ${configdir}... ${redirect}
 878                         case "${srcdir}" in
 879                         ".") ;;
 880                         *)
 881                                 if [ ! -d ./${configdir} ] ; then
 882                                         if mkdir ./${configdir} ; then
 883                                                 true
 884                                         else
 885                                                 echo '***' "${progname}: could not make ${PWD=`pwd`}/${configdir}" 1>&2
 886                                                 exit 1
 887                                         fi
 888                                 fi
 889                                 ;;
 890                         esac
 891
 892                         POPDIR=${PWD=`pwd`}
 893                         cd ${configdir}
 894
 895 ### figure out what to do with srcdir
 896                         case "${srcdir}" in
 897                         ".") newsrcdir=${srcdir} ;; # no -srcdir option.  We're building in place.
 898                         /*) # absolute path
 899                                 newsrcdir=${srcdir}/${configdir}
 900                                 srcdiroption="--srcdir=${newsrcdir}"
 901                                 ;;
 902                         *) # otherwise relative
 903                                 newsrcdir=../${srcdir}/${configdir}
 904                                 srcdiroption="--srcdir=${newsrcdir}"
 905                                 ;;
 906                         esac
 907
 908 ### check for guested configure, otherwise fix possibly relative progname
 909                         if [ -f ${newsrcdir}/configure ] ; then
 910                                 recprog=${newsrcdir}/configure
 911                         elif [ -f ${newsrcdir}/configure.in ] ; then
 912                                 case "${progname}" in
 913                                 /*)     recprog=${progname} ;;
 914                                 *)      recprog=../${progname} ;;
 915                                 esac
 916                         else
 917                                 eval echo No configuration information in ${configdir} ${redirect}
 918                                 recprog=
 919                         fi
 920
 921 ### The recursion line is here.
 922                         if [ ! -z "${recprog}" ] ; then
 923                                 if eval ${config_shell} ${recprog} ${verbose} ${buildopt} --host=${host_alias} --target=${target_alias} \
 924                                         ${prefixoption} ${tmpdiroption} ${exec_prefixoption} \
 925                                         ${srcdiroption} ${program_prefixoption} ${program_suffixoption} ${program_transform_nameoption} ${site_option} ${withoptions} ${withoutoptions} ${removing} ${redirect} ; then
 926                                         true
 927                                 else
 928                                         exit 1
 929                                 fi
 930                         fi
 931
 932                         cd ${POPDIR}
 933                 fi
 934         done
 935 fi
 936
 937 exit 0
 938
 939 #
 940 # Local Variables:
 941 # fill-column: 131
 942 # End:
 943 #
 944
 945 # end of configure