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 # if PWD already has a value, it is probably wrong.
 101 if [ -n "$PWD" ]; then PWD=`pwd`; fi
 102
 103 case "${progname}" in
 104 /*) ;;
 105 */*) ;;
 106 *)
 107         PATH=$PATH:${PWD=`pwd`} ; export PATH
 108         ;;
 109 esac
 110
 111 for arg in $*;
 112 do
 113         # handle things that might have args following as separate words
 114         if [ -n "${next_prefix}" ] ; then prefix=${arg} ; prefixoption="-prefix=${prefix}" ; next_prefix=
 115         elif [ -n "${next_exec_prefix}" ] ; then
 116                 exec_prefix=${arg}
 117                 exec_prefixoption="-exec_prefix=${exec_prefix}"
 118                 next_exec_prefix=
 119         elif [ -n "${next_site}" ] ; then site=${arg} ; site_option=-site=${site} ; next_site=
 120         # remove any possible trailing slash from srcdir.  See note below.
 121         elif [ -n "${next_srcdir}" ] ; then srcdir=`echo ${arg} | sed -e 's:/$::'` ; next_srcdir=
 122         elif [ -n "${next_program_prefix}" ] ; then
 123                 program_prefix=${arg}
 124                 program_prefixoption="-program_prefix=${program_prefix}"
 125                 next_program_prefix=
 126         elif [ -n "${next_program_suffix}" ] ; then
 127                 program_suffix=${arg}
 128                 program_suffixoption="-program_suffix=${program_suffix}"
 129                 next_program_suffix=
 130         elif [ -n "${next_program_transform_name}" ] ; then
 131                 # Double any backslashes or dollar signs in the argument
 132                 program_transform_name="${program_transform_name} -e `echo ${arg} | sed -e 's/\\\\/\\\\\\\\/g' -e 's/\\\$/$$/g'`"
 133                 program_transform_nameoption="${program_transform_nameoption} -program_transform_name='${arg}'"
 134                 next_program_transform_name=
 135         elif [ -n "${next_target}" ] ; then
 136                 next_target=
 137                 case "${target_alias}" in
 138                 "")
 139                         target_alias="${arg}"
 140                         ;;
 141                 *)
 142                         echo '***' Can only configure for one target at a time.  1>&2
 143                         fatal=yes
 144                         ;;
 145                 esac
 146         elif [ -n "${next_tmpdir}" ] ; then
 147                 next_tmpdir=
 148                 tmpdiroption="--tmpdir=${arg}"
 149                 TMPDIR=${arg}
 150
 151         else
 152                 case ${arg} in
 153                 -exec_prefix=* | --exec_prefix=* | --exec_prefi=* | --exec_pref=* | --exec_pre=* | --exec_pr=* | --exec_p=* | --exec_=* | --exec=* | --exe=* | --ex=* | --e=* | -exec-prefix=* | --exec-prefix=* | --exec-prefi=* | --exec-pref=* | --exec-pre=* | --exec-pr=* | --exec-p=* | --exec-=* )
 154                         exec_prefix=`echo ${arg} | sed 's/^[-a-z_]*=//'`
 155                         exec_prefixoption=${arg}
 156                         ;;
 157                 -exec_prefix | --exec_prefix | --exec_prefi | --exec_pref | --exec_pre | --exec_pr | --exec_p | --exec_ | --exec | --exe | --ex | --e | -exec-prefix | --exec-prefix | --exec-prefi | --exec-pref | --exec-pre | --exec-pr | --exec-p | --exec-)
 158                         next_exec_prefix=yes
 159                         ;;
 160                 -gas | --g*)
 161                         gas=yes
 162                         ;;
 163                 -help | --he*)
 164                         fatal=true
 165                         ;;
 166                 -host=* | --host=* | --hos=* | --ho=*)
 167                         case "${host_alias}" in
 168                         "")
 169                                 host_alias="`echo ${arg} | sed 's/^[-a-z]*=//'`"
 170                                 ;;
 171                         *)
 172                                 echo '***' Can only configure for one host at a time.  1>&2
 173                                 fatal=yes
 174                                 ;;
 175                         esac
 176                         ;;
 177                 -nfp | --nf*)
 178                         floating_point=no
 179                         ;;
 180                 -norecursion | --no*)
 181                         norecursion=true
 182                         ;;
 183                 -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=*)
 184                         prefix=`echo ${arg} | sed 's/^[-a-z]*=//'`
 185                         prefixoption=${arg}
 186                         ;;
 187                 -prefix | --prefix | --prefi | --pref | --pre)
 188                         next_prefix=yes
 189                         ;;
 190                 -rm | --rm) removing=${arg} ;;
 191                 -program_prefix=* | --program_prefix=* | --program_prefi=* | --program_pref=* | --program_pre=* | --program_pr=* | --program_p=* | -program-prefix=* | --program-prefix=* | --program-prefi=* | --program-pref=* | --program-pre=* | --program-pr=* | --program-p=*)
 192                         program_prefix=`echo ${arg} | sed 's/^[-a-z_]*=//'`
 193                         program_prefixoption=${arg}
 194                         ;;
 195                 -program_prefix | --program_prefix | --program_prefi | --program_pref | --program_pre | --program_pr | --program_p | -program-prefix | --program-prefix | --program-prefi | --program-pref | --program-pre | --program-pr | --program-p)
 196                         next_program_prefix=yes
 197                         ;;
 198                 -program_suffix=* | --program_suffix=* | --program_suffi=* | --program_suff=* | --program_suf=* | --program_su=* | --program_s=* | -program-suffix=* | --program-suffix=* | --program-suffi=* | --program-suff=* | --program-suf=* | --program-su=* | --program-s=*)
 199                         program_suffix=`echo ${arg} | sed 's/^[-a-z_]*=//'`
 200                         program_suffixoption=${arg}
 201                         ;;
 202                 -program_suffix | --program_suffix | --program_suffi | --program_suff | --program_suf | --program_su | --program_s |-program-suffix | --program-suffix | --program-suffi | --program-suff | --program-suf | --program-su | --program-s)
 203                         next_program_suffix=yes
 204                         ;;
 205                 -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=* | -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=*)
 206                         # Double any \ or $ in the argument
 207                         program_transform_name="${program_transform_name} -e `echo ${arg} | sed -e 's/^[-a-z_]*=//' -e 's/\\\\/\\\\\\\\/g' -e 's/\\\$/$$/g'`"
 208                         program_transform_nameoption="${program_transform_nameoption} -program_transform_name='`echo ${arg} | sed 's/^[-a-z_]*=//'`'"
 209                         ;;
 210                 -program_transform_name | --program_transform_name | --program_transform_nam | --program_transform_na | --program_transform_n | --program_transform_ | --program_transform | --program_transfor | --program_transfo | --program_transf | --program_trans | --program_tran | --program_tra | --program_tr | --program_t | -program-transform-name | --program-transform-name | --program-transform-nam | --program-transform-na | --program-transform-n | --program-transform- | --program-transform | --program-transfor | --program-transfo | --program-transf | --program-trans | --program-tran | --program-tra | --program-tr | --program-t)
 211                         next_program_transform_name=yes
 212                         ;;
 213                 -site=* | --site=* | --sit=* | --si=*)
 214                         site_option=${arg}
 215                         site=`echo ${arg} | sed 's/^[-a-z]*=//'`
 216                         ;;
 217                 -site | --site | --sit)
 218                         next_site=yes
 219                         ;;
 220                 # remove trailing slashes.  Otherwise, when the file name gets
 221                 # bolted into an object file as debug info, it has two slashes in
 222                 # it.  Ordinarily this is ok, but emacs takes double slash to
 223                 # mean "forget the first part".
 224                 -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
 225                         srcdir=`echo ${arg} | sed 's/^[-a-z]*=//' | sed -e 's:/$::'`
 226                         ;;
 227                 -srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
 228                         next_srcdir=yes
 229                         ;;
 230                 -target=* | --target=* | --targe=* | --targ=* | --tar=* | --ta=*)
 231                         case "${target_alias}" in
 232                         "") target_alias="`echo ${arg} | sed 's/^[-a-z]*=//'`" ;;
 233                         *)
 234                                 echo '***' Can only configure for one target at a time.  1>&2
 235                                 fatal=yes
 236                                 ;;
 237                         esac
 238                         ;;
 239                 -target | --target | --targe | --targ | --tar | --ta)
 240                         next_target=yes
 241                         ;;
 242                 -tmpdir=* | --tmpdir=* | --tmpdi=* | --tmpd=* | --tmp=* | --tm=*)
 243                         tmpdiroption=${arg}
 244                         TMPDIR=`echo ${arg} | sed 's/^[-a-z]*=//'`
 245                         ;;
 246                 -tmpdir | --tmpdir | --tmpdi | --tmpd | --tmp | --tm)
 247                         next_tmpdir=yes
 248                         ;;
 249                 -v | -verbose | --v)
 250                         redirect=
 251                         verbose=-v
 252                         ;;
 253                 -version | -V | --version | --V)
 254                         echo "This is Cygnus Configure version" `echo ${version} | sed 's/[ $:]//g'`
 255                         exit 0
 256                         ;;
 257                 -with*=* | --with*=*)
 258                         withopt=`echo ${arg} | sed 's:^-*\(with[^=]*\)=.*$:\1:;s/-/_/g'`
 259                         withval=`echo ${arg} | sed 's:^-*with[^=]*=\(.*\)$:\1:'`
 260                         eval $withopt="$withval"
 261                         withoptions="$withoptions -$withopt=\"$withval\""
 262                         ;;
 263                 -with* | --with*)
 264                         withopt=`echo ${arg} | sed 's:^-*with:with:;s/-/_/g'`
 265                         eval $withopt=yes
 266                         withoptions="$withoptions -$withopt"
 267                         ;;
 268                 -x | --x) ;;
 269                 -* | --*)
 270                         (echo ;
 271                         echo "Unrecognized option: \"${arg}\"". ;
 272                         echo) 1>&2
 273                         fatal=true
 274                         ;;
 275                 *)
 276                         case "${undefs}" in
 277                         "")
 278                                 undefs="${arg}"
 279                                 ;;
 280                         *)
 281                                 echo '***' Can only configure for one host and one target at a time.  1>&2
 282                                 fatal=yes
 283                                 ;;
 284                         esac
 285                         ;;
 286                 esac
 287         fi
 288 done
 289
 290 # process host and target
 291 case "${fatal}" in
 292 "")
 293 #       # Complain if an arg is missing
 294 #       if [ -z "${host_alias}" ] ; then
 295 #               (echo ;
 296 #               echo "configure: No HOST specified." ;
 297 #               echo) 1>&2
 298 #               fatal=true
 299 #       fi
 300
 301 ### This is a bit twisted.
 302 ### * if all three are specified, this is an error.
 303 ### * if we have neither hosts, nor unadorned args, this is an error.
 304 ### * if no hosts are specified, then the unadorned args are hosts, but if
 305 ### there were none, this is an error.
 306 ### * if no targets are specified, then the unadorned args are targets, but if
 307 ### there were no unadorned args, then the hosts are also targets.
 308
 309         if [ -n "${host_alias}" -a -n "${target_alias}" -a -n "${undefs}" ] ; then
 310                 echo '***' Can only configure for one host and one target at a time.  1>&2
 311                 fatal=yes
 312         elif [ -z "${host_alias}" -a -z "${undefs}" ] ; then
 313                 echo '- You did not tell me what kind of host system you want to configure.
 314 - I will attempt to guess the kind of system this is.' 1>&2
 315                 guesssys=`echo ${progname} | sed 's/configure$/config.guess/'`
 316                 if tmp_alias=`${guesssys}` ; then
 317                         echo "- Looks like this is a ${tmp_alias}" 1>&2
 318                         host_alias=${tmp_alias}
 319                         target_alias=${tmp_alias}
 320                 else
 321                         echo '- Failed to guess the system type.  You need to tell me.' 1>&2
 322                         fatal=yes
 323                 fi
 324         else
 325                 case "${host_alias}" in
 326                 "") host_alias=${undefs} ;;
 327                 *) ;;
 328                 esac
 329
 330                 case "${target_alias}" in
 331                 "")
 332                         case "${undefs}" in
 333                         "")     target_alias=${host_alias} ;;
 334                         *)      target_alias=${undefs} ;;
 335                         esac
 336                         ;;
 337                 *) ;;
 338                 esac
 339         fi
 340         ;;
 341 *) ;;
 342 esac
 343
 344 if [ -n "${fatal}" -o "${host_alias}" = "help" ] ; then
 345         (echo "Usage: configure HOST" ;
 346         echo ;
 347         echo "Options: [defaults in brackets]" ;
 348         echo " -exec-prefix=MYDIR       configure for installation of host dependent files into MYDIR. [\"/usr/local\"]" ;
 349         echo " -gas                     configure the compilers for use with gas. [native as]" ;
 350         echo " -help                    print this message. [normal config]" ;
 351         echo " -lang=LANG               configure to build LANG. [gcc]" ;
 352         echo " -nfp                     configure the compilers default to soft floating point. [hard float]" ;
 353         echo " -norecursion             configure this directory only. [recurse]" ;
 354         echo " -prefix=MYDIR            configure for installation of host dependent files into MYDIR. [\"/usr/local\"]" ;
 355         echo " -program-prefix=FOO      install programs with FOO prepended to their names. [ \"\" ]" ;
 356         echo " -program-suffix=FOO      install programs with FOO appended to their names. [ \"\" ]" ;
 357         echo " -program-transform-name=FOO      install programs with names transformed by sed pattern FOO. [ \"\" ]" ;
 358         echo " -site=SITE               configure with site specific makefile for SITE" ;
 359         echo " -srcdir=DIR              find the sources in DIR. [\".\" or \"..\"]" ;
 360         echo " -target=TARGET           configure for TARGET.  [TARGET = HOST]" ;
 361         echo " -tmpdir=TMPDIR           create temporary files in TMPDIR.  [ TMPDIR = \"/tmp\" ]" ;
 362         echo ;
 363         echo "Where HOST and TARGET are something like \"vax\", \"sun3\", \"encore\", etc." ;
 364         ) 1>&2
 365
 366         if [ -r config.status ] ; then
 367                 cat config.status
 368         fi
 369
 370         exit 1
 371 fi
 372
 373 configsub=`echo ${progname} | sed 's/configure$/config.sub/'`
 374 moveifchange=`echo ${progname} | sed 's/configure$/move-if-change/'`
 375
 376 # this is a hack.  sun4 must always be a valid host alias or this will fail.
 377 if ${configsub} sun4 >/dev/null 2>&1 ; then
 378         true
 379 else
 380         echo '***' cannot find config.sub.  1>&2
 381         exit 1
 382 fi
 383
 384 touch config.junk
 385 if ${moveifchange} config.junk config.trash ; then
 386         true
 387 else
 388         echo '***' cannot find move-if-change.  1>&2
 389         exit 1
 390 fi
 391 rm -f config.junk config.trash
 392
 393 case "${srcdir}" in
 394 "")
 395         if [ -r configure.in ] ; then
 396                 srcdir=.
 397         else
 398                 if [ -r ${progname}.in ] ; then
 399                         srcdir=`echo ${progname} | sed 's:/configure$::'`
 400                 else
 401                         echo '***' "Can't find configure.in.  Try using -srcdir=some_dir"  1>&2
 402                         exit 1
 403                 fi
 404         fi
 405         ;;
 406 *) ;;
 407 esac
 408
 409 ### warn about some conflicting configurations.
 410
 411 case "${srcdir}" in
 412 ".") ;;
 413 *)
 414         if [ -f ${srcdir}/config.status ] ; then
 415                 echo '***' Cannot configure here in \"${PWD=`pwd`}\" when \"${srcdir}\" is currently configured. 1>&2
 416                 exit 1
 417         fi
 418 esac
 419
 420 # default exec_prefix
 421 case "${exec_prefix}" in
 422 "") exec_prefix="\$(prefix)" ;;
 423 *) ;;
 424 esac
 425
 426 ### break up ${srcdir}/configure.in.
 427 case "`grep '^# per\-host:' ${srcdir}/configure.in`" in
 428 "")
 429         echo '***' ${srcdir}/configure.in has no "per-host:" line. 1>&2
 430         exit 1
 431         ;;
 432 *) ;;
 433 esac
 434
 435 case "`grep '^# per\-target:' ${srcdir}/configure.in`" in
 436 "")
 437         echo '***' ${srcdir}/configure.in has no "per-target:" line. 1>&2
 438         exit 1
 439         ;;
 440 *) ;;
 441 esac
 442
 443 case "${TMPDIR}" in
 444 "") TMPDIR=/tmp ; export TMPDIR ;;
 445 *) ;;
 446 esac
 447
 448 # keep this filename short for &%*%$*# 14 char file names
 449 tmpfile=${TMPDIR}/cONf$$
 450 trap "rm -f ${tmpfile}.com ${tmpfile}.tgt ${tmpfile}.hst ${tmpfile}.pos" 0
 451
 452 # split ${srcdir}/configure.in into common, per-host, per-target,
 453 # and post-target parts.  Post-target is optional.
 454 sed -e '/^# per\-host:/,$d' ${srcdir}/configure.in > ${tmpfile}.com
 455 sed -e '1,/^# per\-host:/d' -e '/^# per\-target:/,$d' ${srcdir}/configure.in > ${tmpfile}.hst
 456 if grep '^# post-target:' ${srcdir}/configure.in >/dev/null ; then
 457   sed -e '1,/^# per\-target:/d' -e '/^# post\-target:/,$d' ${srcdir}/configure.in > ${tmpfile}.tgt
 458   sed -e '1,/^# post\-target:/d' ${srcdir}/configure.in > ${tmpfile}.pos
 459 else
 460   sed -e '1,/^# per\-target:/d' ${srcdir}/configure.in > ${tmpfile}.tgt
 461   echo >${tmpfile}.pos
 462 fi
 463
 464 ### do common part of configure.in
 465
 466 . ${tmpfile}.com
 467
 468 # some sanity checks on configure.in
 469 case "${srctrigger}" in
 470 "")
 471         echo '***' srctrigger not set in ${PWD=`pwd`}/configure.in.  1>&2
 472         exit 1
 473         ;;
 474 *) ;;
 475 esac
 476
 477 result=`${configsub} ${host_alias}`
 478 host_cpu=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\1/'`
 479 host_vendor=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\2/'`
 480 host_os=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\3/'`
 481 host=${host_cpu}-${host_vendor}-${host_os}
 482
 483 . ${tmpfile}.hst
 484
 485 result=`${configsub} ${target_alias}`
 486 target_cpu=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\1/'`
 487 target_vendor=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\2/'`
 488 target_os=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\3/'`
 489 target=${target_cpu}-${target_vendor}-${target_os}
 490
 491 . ${tmpfile}.tgt
 492
 493 # Find the source files, if location was not specified.
 494 case "${srcdir}" in
 495 "")
 496         srcdirdefaulted=1
 497         srcdir=.
 498         if [ ! -r ${srctrigger} ] ; then
 499                 srcdir=..
 500         fi
 501         ;;
 502 *) ;;
 503 esac
 504
 505 if [ ! -r ${srcdir}/${srctrigger} ] ; then
 506         case "${srcdirdefaulted}" in
 507         "") echo '***' "${progname}: Can't find ${srcname} sources in ${PWD=`pwd`}/${srcdir}" 1>&2 ;;
 508         *)  echo '***' "${progname}: Can't find ${srcname} sources in ${PWD=`pwd`}/. or ${PWD=`pwd`}/.." 1>&2 ;;
 509         esac
 510
 511         echo '***' \(At least ${srctrigger} is missing.\) 1>&2
 512         exit 1
 513 fi
 514
 515 tooldir="\$(libdir)/${target_alias}"
 516
 517 if [ "${host_alias}" != "${target_alias}" ] ; then
 518     if [ "${program_prefix}" = "" ] ; then
 519         if [ "${program_suffix}" = "" ] ; then
 520             if [ "${program_transform_name}" = "" ] ; then
 521                 program_prefix=${target_alias}- ;
 522             fi
 523         fi
 524     fi
 525 fi
 526
 527 # Merge program_prefix and program_suffix onto program_transform_name
 528 # Use a double $ so that make ignores it
 529 if [ "${program_suffix}" != "" ] ; then
 530     program_transform_name="-e s/\$\$/${program_suffix}/ ${program_transform_name}"
 531 fi
 532
 533 if [ "${program_prefix}" != "" ] ; then
 534     program_transform_name="-e s/^/${program_prefix}/ ${program_transform_name}"
 535 fi
 536
 537 for subdir in . ${subdirs} ; do
 538
 539     # ${subdir} is relative path from . to the directory we're currently
 540     # configuring.
 541     # ${invsubdir} is inverse of ${subdir), *with* trailing /, if needed.
 542     invsubdir=`echo ${subdir}/ | sed -e 's|\./||g' -e 's|[^/]*/|../|g'`
 543
 544     ### figure out what to do with srcdir
 545     case "${srcdir}" in
 546         ".")  # no -srcdir option.  We're building in place.
 547                 makesrcdir=. ;;
 548         /*) # absolute path
 549                 makesrcdir=`echo ${srcdir}/${subdir} | sed -e 's|/\.$||'`
 550                 ;;
 551         *) # otherwise relative
 552                 case "${subdir}" in
 553                 .) makesrcdir=${srcdir} ;;
 554                 *) makesrcdir=`echo ${subdir} | sed -e 's:[^./][^./]*:..:g'`/${srcdir}/${subdir} ;;
 555                 esac
 556                 ;;
 557     esac
 558
 559     if [ "${subdir}/" != "./" ] ; then
 560         Makefile=${subdir}/Makefile
 561     fi
 562
 563     if [ ! -d ${subdir} ] ; then
 564         mkdir ${subdir}
 565     fi
 566
 567     case "${removing}" in
 568     "")
 569         case "${subdir}" in
 570         .) ;;
 571         *) eval echo Building in ${subdir} ${redirect} ;;
 572         esac
 573
 574         # FIXME Should this be done recursively ??? (Useful for e.g. gdbtest)
 575         # Set up the list of links to be made.
 576         # ${links} is the list of link names, and ${files} is the list of names to link to.
 577
 578         # Make the links.
 579         configlinks="${links}"
 580         if [ -r ${subdir}/config.status ] ; then
 581                 mv -f ${subdir}/config.status ${subdir}/config.back
 582         fi
 583         while [ -n "${files}" ] ; do
 584                 # set file to car of files, files to cdr of files
 585                 set ${files}; file=$1; shift; files=$*
 586                 set ${links}; link=$1; shift; links=$*
 587
 588                 if [ ! -r ${srcdir}/${file} ] ; then
 589                         echo '***' "${progname}: cannot create a link \"${link}\"," 1>&2
 590                         echo '***' "since the file \"${file}\" does not exist." 1>&2
 591                         exit 1
 592                 fi
 593
 594                 ${remove} -f ${link}
 595                 # Make a symlink if possible, otherwise try a hard link
 596                 ${symbolic_link} ${srcdir}/${file} ${link} 2>/dev/null || ${hard_link} ${srcdir}/${file} ${link}
 597
 598                 if [ ! -r ${link} ] ; then
 599                         echo '***' "${progname}: unable to link \"${link}\" to \"${srcdir}/${file}\"." 1>&2
 600                         exit 1
 601                 fi
 602
 603                 echo "Linked \"${link}\" to \"${srcdir}/${file}\"."
 604         done
 605
 606         # Create a .gdbinit file which runs the one in srcdir
 607         # and tells GDB to look there for source files.
 608
 609         if [ -r ${srcdir}/${subdir}/.gdbinit ] ; then
 610                 case ${srcdir} in
 611                 .) ;;
 612                 *) cat > ${subdir}/.gdbinit <<EOF
 613 # ${NO_EDIT}
 614 dir .
 615 dir ${makesrcdir}
 616 source ${makesrcdir}/.gdbinit
 617 EOF
 618                         ;;
 619                 esac
 620         fi
 621
 622         # Install a makefile, and make it set VPATH
 623         # if necessary so that the sources are found.
 624         # Also change its value of srcdir.
 625         # NOTE: Makefile generation constitutes the majority of the time in configure.  Hence, this section has
 626         # been somewhat optimized and is perhaps a bit twisty.
 627
 628         # code is order so as to try to sed the smallest input files we know.
 629
 630         # the three makefile fragments MUST end up in the resulting Makefile in this order: target, host, and site.
 631         # so do these separately because I don't trust the order of sed -e expressions.
 632
 633         # Conditionalize for this site from "Makefile.in" (or whatever it's called) into Makefile.tem
 634         rm -f ${subdir}/Makefile.tem
 635         case "${site}" in
 636         "") cp ${srcdir}/${subdir}/${Makefile_in} ${subdir}/Makefile.tem ;;
 637         *)
 638                 site_makefile_frag=${srcdir}/config/ms-${site}
 639
 640                 if [ -f ${site_makefile_frag} ] ; then
 641                         sed -e "/^####/  r ${site_makefile_frag}" ${srcdir}/${subdir}/${Makefile_in} \
 642                                 > ${subdir}/Makefile.tem
 643                 else
 644                         cp ${srcdir}/${subdir}/${Makefile_in} ${subdir}/Makefile.tem
 645                         site_makefile_frag=
 646                 fi
 647                 ;;
 648         esac
 649         # working copy now in ${subdir}/Makefile.tem
 650
 651         # Conditionalize the makefile for this host.
 652         rm -f ${Makefile}
 653         case "${host_makefile_frag}" in
 654         "") mv ${subdir}/Makefile.tem ${Makefile} ;;
 655         *)
 656                 if [ ! -f ${host_makefile_frag} ] ; then
 657                         host_makefile_frag=${srcdir}/${host_makefile_frag}
 658                 fi
 659                 if [ -f ${host_makefile_frag} ] ; then
 660                         sed -e "/^####/  r ${host_makefile_frag}" ${subdir}/Makefile.tem > ${Makefile}
 661                 else
 662                         echo '***' Expected host makefile fragment \"${host_makefile_frag}\" 1>&2
 663                         echo '***' is missing in ${PWD=`pwd`}. 1>&2
 664                         mv ${subdir}/Makefile.tem ${Makefile}
 665                 fi
 666         esac
 667         # working copy now in ${Makefile}
 668
 669         # Conditionalize the makefile for this target.
 670         rm -f ${subdir}/Makefile.tem
 671         case "${target_makefile_frag}" in
 672         "") mv ${Makefile} ${subdir}/Makefile.tem ;;
 673         *)
 674                 if [ ! -f ${target_makefile_frag} ] ; then
 675                         target_makefile_frag=${srcdir}/${target_makefile_frag}
 676                 fi
 677                 if [ -f ${target_makefile_frag} ] ; then
 678                         sed -e "/^####/  r ${target_makefile_frag}" ${Makefile} > ${subdir}/Makefile.tem
 679                 else
 680                         mv ${Makefile} ${subdir}/Makefile.tem
 681                         target_makefile_frag=
 682                 fi
 683                 ;;
 684         esac
 685         # real copy now in ${subdir}/Makefile.tem
 686
 687         # prepend warning about editting, and a bunch of variables.
 688         rm -f ${Makefile}
 689         cat > ${Makefile} <<EOF
 690 # ${NO_EDIT}
 691 VPATH = ${makesrcdir}
 692 links = ${configlinks}
 693 host_alias = ${host_alias}
 694 host_cpu = ${host_cpu}
 695 host_vendor = ${host_vendor}
 696 host_os = ${host_os}
 697 host_canonical = ${host_cpu}-${host_vendor}-${host_os}
 698 target_alias = ${target_alias}
 699 target_cpu = ${target_cpu}
 700 target_vendor = ${target_vendor}
 701 target_os = ${target_os}
 702 target_canonical = ${target_cpu}-${target_vendor}-${target_os}
 703 EOF
 704         case "${target_makefile_frag}" in
 705         "") ;;
 706         /*)
 707   echo target_makefile_frag = ${target_makefile_frag} >>${Makefile} ;;
 708         *)
 709   echo target_makefile_frag = ${invsubdir}${target_makefile_frag} >>${Makefile} ;;
 710         esac
 711
 712         case "${host_makefile_frag}" in
 713         "") ;;
 714         /*)
 715   echo host_makefile_frag = ${host_makefile_frag} >>${Makefile} ;;
 716         *)
 717   echo host_makefile_frag = ${invsubdir}${host_makefile_frag} >>${Makefile} ;;
 718         esac
 719
 720         if [ "${site_makefile_frag}" != "" ] ; then
 721             echo site_makefile_frag = ${invsubdir}${site_makefile_frag} >>${Makefile}
 722         fi
 723
 724         # fixme: this shouldn't be in configure.
 725         # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
 726         case "${host_alias}" in
 727         "${target_alias}")
 728                 echo "ALL=all.internal" >> ${Makefile}
 729                 ;;
 730         *)
 731                 echo "CROSS=-DCROSS_COMPILE" >> ${Makefile}
 732                 echo "ALL=all.cross" >> ${Makefile}
 733                 ;;
 734         esac
 735
 736         # reset prefix, exec_prefix, srcdir, SUBDIRS, NONSUBDIRS,
 737         # remove any form feeds.
 738         if [ -z "${subdirs}" ]; then
 739             rm -f ${subdir}/Makefile.tem2
 740             sed -e "s:^SUBDIRS[         ]*=.*$:SUBDIRS = ${configdirs}:" \
 741                 -e "s:^NONSUBDIRS[      ]*=.*$:NONSUBDIRS = ${noconfigdirs}:" \
 742                 ${subdir}/Makefile.tem > ${subdir}/Makefile.tem2
 743             rm -f ${subdir}/Makefile.tem
 744             mv ${subdir}/Makefile.tem2 ${subdir}/Makefile.tem
 745         fi
 746         sed -e "s:^prefix[      ]*=.*$:prefix = ${prefix}:" \
 747                 -e "s:^exec_prefix[     ]*=.*$:exec_prefix = ${exec_prefix}:" \
 748                 -e "s:^srcdir[  ]*=.*$:srcdir = ${makesrcdir}:" \
 749                 -e "s/\f//" \
 750                 -e "s:^program_prefix[  ]*=.*$:program_prefix = ${program_prefix}:" \
 751                 -e "s:^program_suffix[  ]*=.*$:program_suffix = ${program_suffix}:" \
 752                 -e "s:^program_transform_name[  ]*=.*$:program_transform_name = ${program_transform_name}:" \
 753                 -e "s:^tooldir[         ]*=.*$:tooldir = ${tooldir}:" \
 754                 ${subdir}/Makefile.tem >> ${Makefile}
 755         # final copy now in ${Makefile}
 756
 757         rm -f ${subdir}/Makefile.tem
 758
 759         case "${host_makefile_frag}" in
 760         "") using= ;;
 761         *) using="and \"${host_makefile_frag}\"" ;;
 762         esac
 763
 764         case "${target_makefile_frag}" in
 765         "") ;;
 766         *) using="${using} and \"${target_makefile_frag}\"" ;;
 767         esac
 768
 769         case "${site_makefile_frag}" in
 770         "") ;;
 771         *) using="${using} and \"${site_makefile_frag}\"" ;;
 772         esac
 773
 774         newusing=`echo "${using}" | sed 's/and/using/'`
 775         using=${newusing}
 776         echo "Created \"${Makefile}\" in" ${PWD=`pwd`} ${using}
 777
 778         . ${tmpfile}.pos
 779
 780         # describe the chosen configuration in config.status.
 781         # Make that file a shellscript which will reestablish
 782         # the same configuration.  Used in Makefiles to rebuild
 783         # Makefiles.
 784
 785         case "${norecursion}" in
 786         "") arguments="${arguments} -norecursion" ;;
 787         *) ;;
 788         esac
 789
 790         if [ ${subdir} = . ] ; then
 791             echo "#!/bin/sh
 792 # ${NO_EDIT}
 793 # This directory was configured as follows:
 794 ${progname}" ${arguments}  "
 795 # ${using}" > ${subdir}/config.new
 796         else
 797             echo "#!/bin/sh
 798 # ${NO_EDIT}
 799 # This directory was configured as follows:
 800 cd ${invsubdir}
 801 ${progname}" ${arguments}  "
 802 # ${using}" > ${subdir}/config.new
 803         fi
 804         chmod a+x ${subdir}/config.new
 805         if [ -r ${subdir}/config.back ] ; then
 806                 mv -f ${subdir}/config.back ${subdir}/config.status
 807         fi
 808         ${moveifchange} ${subdir}/config.new ${subdir}/config.status
 809         ;;
 810
 811     *)  rm -f ${Makefile} ${subdir}/config.status ${links} ;;
 812     esac
 813 done
 814
 815 # If there are subdirectories, then recur.
 816 if [ -z "${norecursion}" -a -n "${configdirs}" ] ; then
 817         for configdir in ${configdirs} ; do
 818                 eval echo Configuring ${configdir}... ${redirect}
 819
 820                 if [ -d ${srcdir}/${configdir} ] ; then
 821                         case "${srcdir}" in
 822                         ".") ;;
 823                         *)
 824                                 if [ ! -d ./${configdir} ] ; then
 825                                         mkdir ./${configdir}
 826                                 fi
 827                                 ;;
 828                         esac
 829
 830                         POPDIR=${PWD=`pwd`}
 831                         cd ${configdir}
 832
 833 ### figure out what to do with srcdir
 834                         case "${srcdir}" in
 835                         ".") newsrcdir=${srcdir} ;; # no -srcdir option.  We're building in place.
 836                         /*) # absolute path
 837                                 newsrcdir=${srcdir}/${configdir}
 838                                 srcdiroption="-srcdir=${newsrcdir}"
 839                                 ;;
 840                         *) # otherwise relative
 841                                 newsrcdir=../${srcdir}/${configdir}
 842                                 srcdiroption="-srcdir=${newsrcdir}"
 843                                 ;;
 844                         esac
 845
 846 ### check for guested configure, otherwise fix possibly relative progname
 847                         if [ -f ${newsrcdir}/configure ] ; then
 848                                 recprog=${newsrcdir}/configure
 849                         else
 850                                 case "${progname}" in
 851                                 /*)     recprog=${progname} ;;
 852                                 *)      recprog=../${progname} ;;
 853                                 esac
 854                         fi
 855
 856 ### The recursion line is here.
 857                         if eval ${recprog} ${verbose} ${host_alias} -target=${target_alias} \
 858                                 ${prefixoption} ${tmpdiroption} ${exec_prefixoption} \
 859                                 ${srcdiroption} ${program_prefixoption} ${program_suffixoption} ${program_transform_nameoption} ${site_option} ${withoptions} ${removing} ${redirect} ; then
 860                                 true
 861                         else
 862                                 exit 1
 863                         fi
 864
 865                         cd ${POPDIR}
 866                 else
 867                         eval echo Warning: source directory \"${srcdir}/${configdir}\" is missing. ${redirect}
 868                 fi
 869         done
 870 fi
 871
 872 exit 0
 873
 874 #
 875 # Local Variables:
 876 # fill-column: 131
 877 # End:
 878 #
 879
 880 # end of configure