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