configure

   1 #!/bin/sh
   2
   3 # Configuration script
   4 #   Copyright (C) 1988, 1990, 1991, 1992 Free Software Foundation, Inc.
   5
   6 # This program is free software; you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation; either version 2 of the License, or
   9 # (at your option) any later version.
  10 #
  11 # This program is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 # GNU General Public License for more details.
  15 #
  16 # You should have received a copy of the GNU General Public License
  17 # along with this program; if not, write to the Free Software
  18 # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
  19
  20 # Please email any bugs, comments, and/or additions to this file to:
  21 # configure@cygnus.com
  22
  23 # This file was written by K. Richard Pixley.
  24
  25 #
  26 # Shell script to create proper links to machine-dependent files in
  27 # preparation for compilation.
  28 #
  29 # If configure succeeds, it leaves its status in config.status.
  30 # If configure fails after disturbing the status quo,
  31 #       config.status is removed.
  32 #
  33
  34 export PATH || (echo "OOPS, this isn't sh.  Desperation time.  I will feed myself to sh."; sh $0 $argv; kill $$)
  35
  36 remove=rm
  37 hard_link=ln
  38 symbolic_link='ln -s'
  39
  40 #for Test
  41 #remove="echo rm"
  42 #hard_link="echo ln"
  43 #symbolic_link="echo ln -s"
  44
  45 # clear some things potentially inherited from environment.
  46
  47 Makefile=Makefile
  48 Makefile_in=Makefile.in
  49 arguments=$*
  50 configdirs=
  51 exec_prefix=
  52 exec_prefixoption=
  53 fatal=
  54 floating_point=default
  55 gas=default
  56 host_alias=
  57 host_makefile_frag=
  58 moveifchange=
  59 next_host=
  60 next_prefix=
  61 next_site=
  62 next_srcdir=
  63 next_target=
  64 next_tmpdir=
  65 norecursion=
  66 prefix=/usr/local
  67 progname=
  68 program_prefix=
  69 program_prefixoption=
  70 program_suffix=
  71 program_suffixoption=
  72 program_transform_name=
  73 program_transform_nameoption=
  74 redirect=">/dev/null"
  75 removing=
  76 site=
  77 site_makefile_frag=
  78 site_option=
  79 srcdir=
  80 srctrigger=
  81 subdirs=
  82 target_alias=
  83 target_makefile_frag=
  84 undefinedargs=
  85 version="$Revision$"
  86 x11=default
  87
  88 NO_EDIT="This file was generated automatically by configure.  Do not edit."
  89
  90 ## this is a little touchy and won't always work, but...
  91 ##
  92 ## if the argv[0] starts with a slash then it is an absolute name that can (and
  93 ## must) be used as is.
  94 ##
  95 ## otherwise, if argv[0] has no slash in it, we can assume that it is on the
  96 ## path.  Since PATH might include "." we also add `pwd` to the end of PATH.
  97 ##
  98
  99 progname=$0
 100 PWD=`pwd`
 101
 102 case "${progname}" in
 103 /*) ;;
 104 */*) ;;
 105 *)
 106         PATH=$PATH:${PWD=`pwd`} ; export PATH
 107         ;;
 108 esac
 109
 110 for arg in $*;
 111 do
 112         # handle things that might have args following as separate words
 113         if [ -n "${next_prefix}" ] ; then prefix=${arg} ; prefixoption="-prefix=${prefix}" ; next_prefix=
 114         elif [ -n "${next_exec_prefix}" ] ; then
 115                 exec_prefix=${arg}
 116                 exec_prefixoption="-exec_prefix=${exec_prefix}"
 117                 next_exec_prefix=
 118         elif [ -n "${next_site}" ] ; then site=${arg} ; site_option=-site=${site} ; next_site=
 119         # remove any possible trailing slash from srcdir.  See note below.
 120         elif [ -n "${next_srcdir}" ] ; then srcdir=`echo ${arg} | sed -e 's:/$::'` ; next_srcdir=
 121         elif [ -n "${next_program_prefix}" ] ; then
 122                 program_prefix=${arg}
 123                 program_prefixoption="-program_prefix=${program_prefix}"
 124                 next_program_prefix=
 125         elif [ -n "${next_program_suffix}" ] ; then
 126                 program_suffix=${arg}
 127                 program_suffixoption="-program_suffix=${program_suffix}"
 128                 next_program_suffix=
 129         elif [ -n "${next_program_transform_name}" ] ; then
 130                 # Double any backslashes or dollar signs in the argument
 131                 program_transform_name="${program_transform_name} -e `echo ${arg} | sed -e 's/\\\\/\\\\\\\\/g' -e 's/\\\$/$$/g'`"
 132                 program_transform_nameoption="${program_transform_nameoption} -program_transform_name='${arg}'"
 133                 next_program_transform_name=
 134         elif [ -n "${next_target}" ] ; then
 135                 next_target=
 136                 case "${target_alias}" in
 137                 "")
 138                         target_alias="${arg}"
 139                         ;;
 140                 *)
 141                         echo '***' Can only configure for one target at a time.  1>&2
 142                         fatal=yes
 143                         ;;
 144                 esac
 145         elif [ -n "${next_tmpdir}" ] ; then
 146                 next_tmpdir=
 147                 tmpdiroption="--tmpdir=${arg}"
 148                 TMPDIR=${arg}
 149
 150         else
 151                 case ${arg} in
 152                 -exec_prefix=* | --exec_prefix=* | --exec_prefi=* | --exec_pref=* | --exec_pre=* | --exec_pr=* | --exec_p=* | --exec_=* | --exec=* | --exe=* | --ex=* | --e=*)
 153                         exec_prefix=`echo ${arg} | sed 's/^[-a-z_]*=//'`
 154                         exec_prefixoption=${arg}
 155                         ;;
 156                 -exec_prefix | --exec_prefix | --exec_prefi | --exec_pref | --exec_pre | --exec_pr | --exec_p | --exec_ | --exec | --exe | --ex | --e)
 157                         next_exec_prefix=yes
 158                         ;;
 159                 -gas | --g*)
 160                         gas=yes
 161                         ;;
 162                 -help | --he*)
 163                         fatal=true
 164                         ;;
 165                 -host=* | --host=* | --hos=* | --ho=*)
 166                         case "${host_alias}" in
 167                         "")
 168                                 host_alias="`echo ${arg} | sed 's/^[-a-z]*=//'`"
 169                                 ;;
 170                         *)
 171                                 echo '***' Can only configure for one host at a time.  1>&2
 172                                 fatal=yes
 173                                 ;;
 174                         esac
 175                         ;;
 176                 -nfp | --nf*)
 177                         floating_point=no
 178                         ;;
 179                 -norecursion | --no*)
 180                         norecursion=true
 181                         ;;
 182                 -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=*)
 183                         prefix=`echo ${arg} | sed 's/^[-a-z]*=//'`
 184                         prefixoption=${arg}
 185                         ;;
 186                 -prefix | --prefix | --prefi | --pref | --pre)
 187                         next_prefix=yes
 188                         ;;
 189                 -rm | --rm) removing=${arg} ;;
 190                 -program_prefix=* | --program_prefix=* | --program_prefi=* | --program_pref=* | --program_pre=* | --program_pr=* | --program_p=*)
 191                         program_prefix=`echo ${arg} | sed 's/^[-a-z_]*=//'`
 192                         program_prefixoption=${arg}
 193                         ;;
 194                 -program_prefix | --program_prefix | --program_prefi | --program_pref | --program_pre | --program_pr | --program_p)
 195                         next_program_prefix=yes
 196                         ;;
 197                 -program_suffix=* | --program_suffix=* | --program_suffi=* | --program_suff=* | --program_suf=* | --program_su=* | --program_s=*)
 198                         program_suffix=`echo ${arg} | sed 's/^[-a-z_]*=//'`
 199                         program_suffixoption=${arg}
 200                         ;;
 201                 -program_suffix | --program_suffix | --program_suffi | --program_suff | --program_suf | --program_su | --program_s )
 202                         next_program_suffix=yes
 203                         ;;
 204                 -program_transform_name=* | --program_transform_name=* | --program_transform_nam=* | --program_transform_na=* | --program_transform_n=* | --program_transform_=* | --program_transform=* | --program_transfor=* | --program_transfo=* | --program_transf=* | --program_trans=* | --program_tran=* | --program_tra=* | --program_tr=* | --program_t=*)
 205                         # Double any \ or $ in the argument
 206                         program_transform_name="${program_transform_name} -e `echo ${arg} | sed -e 's/^[-a-z_]*=//' -e 's/\\\\/\\\\\\\\/g' -e 's/\\\$/$$/g'`"
 207                         program_transform_nameoption="${program_transform_nameoption} -program_transform_name='`echo ${arg} | sed 's/^[-a-z_]*=//'`'"
 208                         ;;
 209                 -program_transform_name | --program_transform_name | --program_transform_nam | --program_transform_na | --program_transform_n | --program_transform_ | --program_transform | --program_transfor | --program_transfo | --program_transf | --program_trans | --program_tran | --program_tra | --program_tr | --program_t)
 210                         next_program_transform_name=yes
 211                         ;;
 212                 -site=* | --site=* | --sit=* | --si=*)
 213                         site_option=${arg}
 214                         site=`echo ${arg} | sed 's/^[-a-z]*=//'`
 215                         ;;
 216                 -site | --site | --sit)
 217                         next_site=yes
 218                         ;;
 219                 # remove trailing slashes.  Otherwise, when the file name gets
 220                 # bolted into an object file as debug info, it has two slashes in
 221                 # it.  Ordinarily this is ok, but emacs takes double slash to
 222                 # mean "forget the first part".
 223                 -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
 224                         srcdir=`echo ${arg} | sed 's/^[-a-z]*=//' | sed -e 's:/$::'`
 225                         ;;
 226                 -srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
 227                         next_srcdir=yes
 228                         ;;
 229                 -target=* | --target=* | --targe=* | --targ=* | --tar=* | --ta=*)
 230                         case "${target_alias}" in
 231                         "") target_alias="`echo ${arg} | sed 's/^[-a-z]*=//'`" ;;
 232                         *)
 233                                 echo '***' Can only configure for one target at a time.  1>&2
 234                                 fatal=yes
 235                                 ;;
 236                         esac
 237                         ;;
 238                 -target | --target | --targe | --targ | --tar | --ta)
 239                         next_target=yes
 240                         ;;
 241                 -tmpdir=* | --tmpdir=* | --tmpdi=* | --tmpd=* | --tmp=* | --tm=*)
 242                         tmpdiroption=${arg}
 243                         TMPDIR=`echo ${arg} | sed 's/^[-a-z]*=//'`
 244                         ;;
 245                 -tmpdir | --tmpdir | --tmpdi | --tmpd | --tmp | --tm)
 246                         next_tmpdir=yes
 247                         ;;
 248                 -v | -verbose | --v)
 249                         redirect=
 250                         verbose=-v
 251                         ;;
 252                 -version | -V | --version | --V)
 253                         echo "This is Cygnus Configure version" `echo ${version} | sed 's/[ $:]//g'`
 254                         exit 0
 255                         ;;
 256                 -x | --x) ;;
 257                 -* | --*)
 258                         (echo ;
 259                         echo "Unrecognized option: \"${arg}\"". ;
 260                         echo) 1>&2
 261                         fatal=true
 262                         ;;
 263                 *)
 264                         case "${undefs}" in
 265                         "")
 266                                 undefs="${arg}"
 267                                 ;;
 268                         *)
 269                                 echo '***' Can only configure for one host and one target at a time.  1>&2
 270                                 fatal=yes
 271                                 ;;
 272                         esac
 273                         ;;
 274                 esac
 275         fi
 276 done
 277
 278 # process host and target
 279 case "${fatal}" in
 280 "")
 281 #       # Complain if an arg is missing
 282 #       if [ -z "${host_alias}" ] ; then
 283 #               (echo ;
 284 #               echo "configure: No HOST specified." ;
 285 #               echo) 1>&2
 286 #               fatal=true
 287 #       fi
 288
 289 ### This is a bit twisted.
 290 ### * if all three are specified, this is an error.
 291 ### * if we have neither hosts, nor unadorned args, this is an error.
 292 ### * if no hosts are specified, then the unadorned args are hosts, but if
 293 ### there were none, this is an error.
 294 ### * if no targets are specified, then the unadorned args are targets, but if
 295 ### there were no unadorned args, then the hosts are also targets.
 296
 297         if [ -n "${host_alias}" -a -n "${target_alias}" -a -n "${undefs}" ] ; then
 298                 echo '***' Can only configure for one host and one target at a time.  1>&2
 299                 fatal=yes
 300         elif [ -z "${host_alias}" -a -z "${undefs}" ] ; then
 301                 echo '***' You must tell me for which host you want to configure.  1>&2
 302                 fatal=yes
 303         else
 304                 case "${host_alias}" in
 305                 "") host_alias=${undefs} ;;
 306                 *) ;;
 307                 esac
 308
 309                 case "${target_alias}" in
 310                 "")
 311                         case "${undefs}" in
 312                         "")     target_alias=${host_alias} ;;
 313                         *)      target_alias=${undefs} ;;
 314                         esac
 315                         ;;
 316                 *) ;;
 317                 esac
 318         fi
 319         ;;
 320 *) ;;
 321 esac
 322
 323 if [ -n "${fatal}" -o "${host_alias}" = "help" ] ; then
 324         (echo "Usage: configure HOST" ;
 325         echo ;
 326         echo "Options: [defaults in brackets]" ;
 327         echo " -exec_prefix=MYDIR       configure for installation of host dependent files into MYDIR. [\"/usr/local\"]" ;
 328         echo " -gas                     configure the compilers for use with gas. [native as]" ;
 329         echo " -help                    print this message. [normal config]" ;
 330         echo " -lang=LANG               configure to build LANG. [gcc]" ;
 331         echo " -nfp                     configure the compilers default to soft floating point. [hard float]" ;
 332         echo " -norecursion             configure this directory only. [recurse]" ;
 333         echo " -prefix=MYDIR            configure for installation of host dependent files into MYDIR. [\"/usr/local\"]" ;
 334         echo " -program_prefix=FOO      install programs with FOO prepended to their names. [ \"\" ]" ;
 335         echo " -program_suffix=FOO      install programs with FOO appended to their names. [ \"\" ]" ;
 336         echo " -program_transform_name=FOO      install programs with names transformed by sed pattern FOO. [ \"\" ]" ;
 337         echo " -site=SITE               configure with site specific makefile for SITE" ;
 338         echo " -srcdir=DIR              find the sources in DIR. [\".\" or \"..\"]" ;
 339         echo " -target=TARGET           configure for TARGET.  [TARGET = HOST]" ;
 340         echo " -tmpdir=TMPDIR           create temporary files in TMPDIR.  [ TMPDIR = \"/tmp\" ]" ;
 341         echo ;
 342         echo "Where HOST and TARGET are something like \"vax\", \"sun3\", \"encore\", etc." ;
 343         ) 1>&2
 344
 345         if [ -r config.status ] ; then
 346                 cat config.status
 347         fi
 348
 349         exit 1
 350 fi
 351
 352 configsub=`echo ${progname} | sed 's/configure$/config.sub/'`
 353 moveifchange=`echo ${progname} | sed 's/configure$/move-if-change/'`
 354
 355 # this is a hack.  sun4 must always be a valid host alias or this will fail.
 356 if ${configsub} sun4 >/dev/null 2>&1 ; then
 357         true
 358 else
 359         echo '***' cannot find config.sub.  1>&2
 360         exit 1
 361 fi
 362
 363 touch config.junk
 364 if ${moveifchange} config.junk config.trash ; then
 365         true
 366 else
 367         echo '***' cannot find move-if-change.  1>&2
 368         exit 1
 369 fi
 370 rm -f config.junk config.trash
 371
 372 case "${srcdir}" in
 373 "")
 374         if [ -r configure.in ] ; then
 375                 srcdir=.
 376         else
 377                 if [ -r ${progname}.in ] ; then
 378                         srcdir=`echo ${progname} | sed 's:/configure$::'`
 379                 else
 380                         echo '***' "Can't find configure.in.  Try using -srcdir=some_dir"  1>&2
 381                         exit 1
 382                 fi
 383         fi
 384         ;;
 385 *) ;;
 386 esac
 387
 388 ### warn about some conflicting configurations.
 389
 390 case "${srcdir}" in
 391 ".") ;;
 392 *)
 393         if [ -f ${srcdir}/config.status ] ; then
 394                 echo '***' Cannot configure here in \"${PWD=`pwd`}\" when \"${srcdir}\" is currently configured. 1>&2
 395                 exit 1
 396         fi
 397 esac
 398
 399 # default exec_prefix
 400 case "${exec_prefix}" in
 401 "") exec_prefix="\$(prefix)" ;;
 402 *) ;;
 403 esac
 404
 405 ### break up ${srcdir}/configure.in.
 406 case "`grep '^# per\-host:' ${srcdir}/configure.in`" in
 407 "")
 408         echo '***' ${srcdir}/configure.in has no "per-host:" line. 1>&2
 409         exit 1
 410         ;;
 411 *) ;;
 412 esac
 413
 414 case "`grep '^# per\-target:' ${srcdir}/configure.in`" in
 415 "")
 416         echo '***' ${srcdir}/configure.in has no "per-target:" line. 1>&2
 417         exit 1
 418         ;;
 419 *) ;;
 420 esac
 421
 422 case "${TMPDIR}" in
 423 "") TMPDIR=/tmp ; export TMPDIR ;;
 424 *) ;;
 425 esac
 426
 427 # keep this filename short for &%*%$*# 14 char file names
 428 tmpfile=${TMPDIR}/cONf$$
 429 trap "rm -f ${tmpfile}.com ${tmpfile}.tgt ${tmpfile}.hst ${tmpfile}.pos" 0
 430
 431 # split ${srcdir}/configure.in into common, per-host, per-target,
 432 # and post-target parts.  Post-target is optional.
 433 sed -e '/^# per\-host:/,$d' ${srcdir}/configure.in > ${tmpfile}.com
 434 sed -e '1,/^# per\-host:/d' -e '/^# per\-target:/,$d' ${srcdir}/configure.in > ${tmpfile}.hst
 435 if grep '^# post-target:' ${srcdir}/configure.in >/dev/null ; then
 436   sed -e '1,/^# per\-target:/d' -e '/^# post\-target:/,$d' ${srcdir}/configure.in > ${tmpfile}.tgt
 437   sed -e '1,/^# post\-target:/d' ${srcdir}/configure.in > ${tmpfile}.pos
 438 else
 439   sed -e '1,/^# per\-target:/d' ${srcdir}/configure.in > ${tmpfile}.tgt
 440   echo >${tmpfile}.pos
 441 fi
 442
 443 ### do common part of configure.in
 444
 445 . ${tmpfile}.com
 446
 447 # some sanity checks on configure.in
 448 case "${srctrigger}" in
 449 "")
 450         echo '***' srctrigger not set in ${PWD=`pwd`}/configure.in.  1>&2
 451         exit 1
 452         ;;
 453 *) ;;
 454 esac
 455
 456 result=`${configsub} ${host_alias}`
 457 host_cpu=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\1/'`
 458 host_vendor=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\2/'`
 459 host_os=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\3/'`
 460 host=${host_cpu}-${host_vendor}-${host_os}
 461
 462 . ${tmpfile}.hst
 463
 464 result=`${configsub} ${target_alias}`
 465 target_cpu=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\1/'`
 466 target_vendor=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\2/'`
 467 target_os=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\3/'`
 468 target=${target_cpu}-${target_vendor}-${target_os}
 469
 470 . ${tmpfile}.tgt
 471
 472 # Find the source files, if location was not specified.
 473 case "${srcdir}" in
 474 "")
 475         srcdirdefaulted=1
 476         srcdir=.
 477         if [ ! -r ${srctrigger} ] ; then
 478                 srcdir=..
 479         fi
 480         ;;
 481 *) ;;
 482 esac
 483
 484 if [ ! -r ${srcdir}/${srctrigger} ] ; then
 485         case "${srcdirdefaulted}" in
 486         "") echo '***' "${progname}: Can't find ${srcname} sources in ${PWD=`pwd`}/${srcdir}" 1>&2 ;;
 487         *)  echo '***' "${progname}: Can't find ${srcname} sources in ${PWD=`pwd`}/. or ${PWD=`pwd`}/.." 1>&2 ;;
 488         esac
 489
 490         echo '***' \(At least ${srctrigger} is missing.\) 1>&2
 491         exit 1
 492 fi
 493
 494 tooldir="\$(libdir)/${target_alias}"
 495
 496 if [ "${host_alias}" != "${target_alias}" ] ; then
 497     if [ "${program_prefix}" = "" ] ; then
 498         if [ "${program_suffix}" = "" ] ; then
 499             if [ "${program_transform_name}" = "" ] ; then
 500                 program_prefix=${target_alias}- ;
 501             fi
 502         fi
 503     fi
 504 fi
 505
 506 # Merge program_prefix and program_suffix onto program_transform_name
 507 # Use a double $ so that make ignores it
 508 if [ "${program_suffix}" != "" ] ; then
 509     program_transform_name="-e s/\$\$/${program_suffix}/ ${program_transform_name}"
 510 fi
 511
 512 if [ "${program_prefix}" != "" ] ; then
 513     program_transform_name="-e s/^/${program_prefix}/ ${program_transform_name}"
 514 fi
 515
 516 for subdir in . ${subdirs} ; do
 517
 518     # ${subdir} is relative path from . to the directory we're currently
 519     # configuring.
 520     # ${invsubdir} is inverse of ${subdir), *with* trailing /, if needed.
 521     invsubdir=`echo ${subdir}/ | sed -e 's|\./||g' -e 's|[^/]*/|../|g'`
 522
 523     ### figure out what to do with srcdir
 524     case "${srcdir}" in
 525         ".")  # no -srcdir option.  We're building in place.
 526                 makesrcdir=. ;;
 527         /*) # absolute path
 528                 makesrcdir=`echo ${srcdir}/${subdir} | sed -e 's|/\.$||'`
 529                 ;;
 530         *) # otherwise relative
 531                 case "${subdir}" in
 532                 .) makesrcdir=${srcdir} ;;
 533                 *) makesrcdir=`echo ${subdir} | sed -e 's:[^./][^./]*:..:g'`/${srcdir}/${subdir} ;;
 534                 esac
 535                 ;;
 536     esac
 537
 538     if [ "${subdir}/" != "./" ] ; then
 539         Makefile=${subdir}/Makefile
 540     fi
 541
 542     if [ ! -d ${subdir} ] ; then
 543         mkdir ${subdir}
 544     fi
 545
 546     case "${removing}" in
 547     "")
 548         case "${subdir}" in
 549         .) ;;
 550         *) eval echo Building in ${subdir} ${redirect} ;;
 551         esac
 552
 553         # FIXME Should this be done recursively ??? (Useful for e.g. gdbtest)
 554         # Set up the list of links to be made.
 555         # ${links} is the list of link names, and ${files} is the list of names to link to.
 556
 557         # Make the links.
 558         configlinks="${links}"
 559         if [ -r ${subdir}/config.status ] ; then
 560                 mv -f ${subdir}/config.status ${subdir}/config.back
 561         fi
 562         while [ -n "${files}" ] ; do
 563                 # set file to car of files, files to cdr of files
 564                 set ${files}; file=$1; shift; files=$*
 565                 set ${links}; link=$1; shift; links=$*
 566
 567                 if [ ! -r ${srcdir}/${file} ] ; then
 568                         echo '***' "${progname}: cannot create a link \"${link}\"," 1>&2
 569                         echo '***' "since the file \"${file}\" does not exist." 1>&2
 570                         exit 1
 571                 fi
 572
 573                 ${remove} -f ${link}
 574                 # Make a symlink if possible, otherwise try a hard link
 575                 ${symbolic_link} ${srcdir}/${file} ${link} 2>/dev/null || ${hard_link} ${srcdir}/${file} ${link}
 576
 577                 if [ ! -r ${link} ] ; then
 578                         echo '***' "${progname}: unable to link \"${link}\" to \"${srcdir}/${file}\"." 1>&2
 579                         exit 1
 580                 fi
 581
 582                 echo "Linked \"${link}\" to \"${srcdir}/${file}\"."
 583         done
 584
 585         # Create a .gdbinit file which runs the one in srcdir
 586         # and tells GDB to look there for source files.
 587
 588         if [ -r ${srcdir}/${subdir}/.gdbinit ] ; then
 589                 case ${srcdir} in
 590                 .) ;;
 591                 *) cat > ${subdir}/.gdbinit <<EOF
 592 # ${NO_EDIT}
 593 dir .
 594 dir ${makesrcdir}
 595 source ${makesrcdir}/.gdbinit
 596 EOF
 597                         ;;
 598                 esac
 599         fi
 600
 601         # Install a makefile, and make it set VPATH
 602         # if necessary so that the sources are found.
 603         # Also change its value of srcdir.
 604         # NOTE: Makefile generation constitutes the majority of the time in configure.  Hence, this section has
 605         # been somewhat optimized and is perhaps a bit twisty.
 606
 607         # code is order so as to try to sed the smallest input files we know.
 608
 609         # the three makefile fragments MUST end up in the resulting Makefile in this order: target, host, and site.
 610         # so do these separately because I don't trust the order of sed -e expressions.
 611
 612         # Conditionalize for this site from "Makefile.in" (or whatever it's called) into Makefile.tem
 613         rm -f ${subdir}/Makefile.tem
 614         case "${site}" in
 615         "") cp ${srcdir}/${subdir}/${Makefile_in} ${subdir}/Makefile.tem ;;
 616         *)
 617                 site_makefile_frag=${srcdir}/config/ms-${site}
 618
 619                 if [ -f ${site_makefile_frag} ] ; then
 620                         sed -e "/^####/  r ${site_makefile_frag}" ${srcdir}/${subdir}/${Makefile_in} \
 621                                 > ${subdir}/Makefile.tem
 622                 else
 623                         cp ${srcdir}/${subdir}/${Makefile_in} ${subdir}/Makefile.tem
 624                         site_makefile_frag=
 625                 fi
 626                 ;;
 627         esac
 628         # working copy now in ${subdir}/Makefile.tem
 629
 630         # Conditionalize the makefile for this host.
 631         rm -f ${Makefile}
 632         case "${host_makefile_frag}" in
 633         "") mv ${subdir}/Makefile.tem ${Makefile} ;;
 634         *)
 635                 if [ ! -f ${host_makefile_frag} ] ; then
 636                         host_makefile_frag=${srcdir}/${host_makefile_frag}
 637                 fi
 638                 if [ -f ${host_makefile_frag} ] ; then
 639                         sed -e "/^####/  r ${host_makefile_frag}" ${subdir}/Makefile.tem > ${Makefile}
 640                 else
 641                         echo '***' Expected host makefile fragment \"${host_makefile_frag}\" 1>&2
 642                         echo '***' is missing in ${PWD=`pwd`}. 1>&2
 643                         mv ${subdir}/Makefile.tem ${Makefile}
 644                 fi
 645         esac
 646         # working copy now in ${Makefile}
 647
 648         # Conditionalize the makefile for this target.
 649         rm -f ${subdir}/Makefile.tem
 650         case "${target_makefile_frag}" in
 651         "") mv ${Makefile} ${subdir}/Makefile.tem ;;
 652         *)
 653                 if [ ! -f ${target_makefile_frag} ] ; then
 654                         target_makefile_frag=${srcdir}/${target_makefile_frag}
 655                 fi
 656                 if [ -f ${target_makefile_frag} ] ; then
 657                         sed -e "/^####/  r ${target_makefile_frag}" ${Makefile} > ${subdir}/Makefile.tem
 658                 else
 659                         mv ${Makefile} ${subdir}/Makefile.tem
 660                         target_makefile_frag=
 661                 fi
 662                 ;;
 663         esac
 664         # real copy now in ${subdir}/Makefile.tem
 665
 666         # prepend warning about editting, and a bunch of variables.
 667         rm -f ${Makefile}
 668         cat > ${Makefile} <<EOF
 669 # ${NO_EDIT}
 670 VPATH = ${makesrcdir}
 671 links = ${configlinks}
 672 host_alias = ${host_alias}
 673 host_cpu = ${host_cpu}
 674 host_vendor = ${host_vendor}
 675 host_os = ${host_os}
 676 target_alias = ${target_alias}
 677 target_cpu = ${target_cpu}
 678 target_vendor = ${target_vendor}
 679 target_os = ${target_os}
 680 EOF
 681         case "${target_makefile_frag}" in
 682         "") ;;
 683         /*)
 684   echo target_makefile_frag = ${target_makefile_frag} >>${Makefile} ;;
 685         *)
 686   echo target_makefile_frag = ${invsubdir}${target_makefile_frag} >>${Makefile} ;;
 687         esac
 688
 689         case "${host_makefile_frag}" in
 690         "") ;;
 691         /*)
 692   echo host_makefile_frag = ${host_makefile_frag} >>${Makefile} ;;
 693         *)
 694   echo host_makefile_frag = ${invsubdir}${host_makefile_frag} >>${Makefile} ;;
 695         esac
 696
 697         if [ "${site_makefile_frag}" != "" ] ; then
 698             echo site_makefile_frag = ${invsubdir}${site_makefile_frag} >>${Makefile}
 699         fi
 700
 701         # fixme: this shouldn't be in configure.
 702         # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
 703         case "${host_alias}" in
 704         "${target_alias}")
 705                 echo "ALL=all.internal" >> ${Makefile}
 706                 ;;
 707         *)
 708                 echo "CROSS=-DCROSS_COMPILE" >> ${Makefile}
 709                 echo "ALL=all.cross" >> ${Makefile}
 710                 ;;
 711         esac
 712
 713         # reset prefix, exec_prefix, srcdir, SUBDIRS, NONSUBDIRS,
 714         # remove any form feeds.
 715         if [ -z "${subdirs}" ]; then
 716             rm -f ${subdir}/Makefile.tem2
 717             sed -e "s:^SUBDIRS[         ]*=.*$:SUBDIRS = ${configdirs}:" \
 718                 -e "s:^NONSUBDIRS[      ]*=.*$:NONSUBDIRS = ${noconfigdirs}:" \
 719                 ${subdir}/Makefile.tem > ${subdir}/Makefile.tem2
 720             rm -f ${subdir}/Makefile.tem
 721             mv ${subdir}/Makefile.tem2 ${subdir}/Makefile.tem
 722         fi
 723         sed -e "s:^prefix[      ]*=.*$:prefix = ${prefix}:" \
 724                 -e "s:^exec_prefix[     ]*=.*$:exec_prefix = ${exec_prefix}:" \
 725                 -e "s:^srcdir[  ]*=.*$:srcdir = ${makesrcdir}:" \
 726                 -e "s/\f//" \
 727                 -e "s:^program_prefix[  ]*=.*$:program_prefix = ${program_prefix}:" \
 728                 -e "s:^program_suffix[  ]*=.*$:program_suffix = ${program_suffix}:" \
 729                 -e "s:^program_transform_name[  ]*=.*$:program_transform_name = ${program_transform_name}:" \
 730                 -e "s:^tooldir[         ]*=.*$:tooldir = ${tooldir}:" \
 731                 ${subdir}/Makefile.tem >> ${Makefile}
 732         # final copy now in ${Makefile}
 733
 734         rm -f ${subdir}/Makefile.tem
 735
 736         case "${host_makefile_frag}" in
 737         "") using= ;;
 738         *) using="and \"${host_makefile_frag}\"" ;;
 739         esac
 740
 741         case "${target_makefile_frag}" in
 742         "") ;;
 743         *) using="${using} and \"${target_makefile_frag}\"" ;;
 744         esac
 745
 746         case "${site_makefile_frag}" in
 747         "") ;;
 748         *) using="${using} and \"${site_makefile_frag}\"" ;;
 749         esac
 750
 751         newusing=`echo "${using}" | sed 's/and/using/'`
 752         using=${newusing}
 753         echo "Created \"${Makefile}\" in" ${PWD=`pwd`} ${using}
 754
 755         . ${tmpfile}.pos
 756
 757         # describe the chosen configuration in config.status.
 758         # Make that file a shellscript which will reestablish
 759         # the same configuration.  Used in Makefiles to rebuild
 760         # Makefiles.
 761
 762         case "${norecursion}" in
 763         "") arguments="${arguments} -norecursion" ;;
 764         *) ;;
 765         esac
 766
 767         if [ ${subdir} = . ] ; then
 768             echo "#!/bin/sh
 769 # ${NO_EDIT}
 770 # This directory was configured as follows:
 771 ${progname}" ${arguments}  "
 772 # ${using}" > ${subdir}/config.new
 773         else
 774             echo "#!/bin/sh
 775 # ${NO_EDIT}
 776 # This directory was configured as follows:
 777 cd ${invsubdir}
 778 ${progname}" ${arguments}  "
 779 # ${using}" > ${subdir}/config.new
 780         fi
 781         chmod a+x ${subdir}/config.new
 782         if [ -r ${subdir}/config.back ] ; then
 783                 mv -f ${subdir}/config.back ${subdir}/config.status
 784         fi
 785         ${moveifchange} ${subdir}/config.new ${subdir}/config.status
 786         ;;
 787
 788     *)  rm -f ${Makefile} ${subdir}/config.status ${links} ;;
 789     esac
 790 done
 791
 792 # If there are subdirectories, then recur.
 793 if [ -z "${norecursion}" -a -n "${configdirs}" ] ; then
 794         for configdir in ${configdirs} ; do
 795                 eval echo Configuring ${configdir}... ${redirect}
 796
 797                 if [ -d ${srcdir}/${configdir} ] ; then
 798                         case "${srcdir}" in
 799                         ".") ;;
 800                         *)
 801                                 if [ ! -d ./${configdir} ] ; then
 802                                         mkdir ./${configdir}
 803                                 fi
 804                                 ;;
 805                         esac
 806
 807                         POPDIR=${PWD=`pwd`}
 808                         cd ${configdir}
 809
 810 ### figure out what to do with srcdir
 811                         case "${srcdir}" in
 812                         ".") newsrcdir=${srcdir} ;; # no -srcdir option.  We're building in place.
 813                         /*) # absolute path
 814                                 newsrcdir=${srcdir}/${configdir}
 815                                 srcdiroption="-srcdir=${newsrcdir}"
 816                                 ;;
 817                         *) # otherwise relative
 818                                 newsrcdir=../${srcdir}/${configdir}
 819                                 srcdiroption="-srcdir=${newsrcdir}"
 820                                 ;;
 821                         esac
 822
 823 ### check for guested configure, otherwise fix possibly relative progname
 824                         if [ -f ${newsrcdir}/configure ] ; then
 825                                 recprog=${newsrcdir}/configure
 826                         else
 827                                 case "${progname}" in
 828                                 /*)     recprog=${progname} ;;
 829                                 *)      recprog=../${progname} ;;
 830                                 esac
 831                         fi
 832
 833 ### The recursion line is here.
 834                         if eval ${recprog} ${verbose} ${host_alias} -target=${target_alias} \
 835                                 ${prefixoption} ${tmpdiroption} ${exec_prefixoption} \
 836                                 ${srcdiroption} ${program_prefixoption} ${program_suffixoption} ${program_transform_nameoption} ${site_option} ${removing} ${redirect} ; then
 837                                 true
 838                         else
 839                                 exit 1
 840                         fi
 841
 842                         cd ${POPDIR}
 843                 else
 844                         eval echo Warning: source directory \"${srcdir}/${configdir}\" is missing. ${redirect}
 845                 fi
 846         done
 847 fi
 848
 849 exit 0
 850
 851 #
 852 # Local Variables:
 853 # fill-column: 131
 854 # End:
 855 #
 856
 857 # end of configure