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