* configure: Make unrecognized options give nonfatal warnings
[external/binutils.git] / configure
1 #!/bin/sh
2
3 ### WARNING: this file contains embedded tabs.  Do not run untabify on this file.
4
5 # Configuration script
6 # Copyright (C) 1988, 90, 91, 92, 93, 94 Free Software Foundation, Inc.
7
8 # This program is free software; you can redistribute it and/or modify
9 # it under the terms of the GNU General Public License as published by
10 # the Free Software Foundation; either version 2 of the License, or
11 # (at your option) any later version.
12
13 # This program is distributed in the hope that it will be useful,
14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16 # GNU General Public License for more details.
17
18 # You should have received a copy of the GNU General Public License
19 # along with this program; if not, write to the Free Software
20 # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21
22 # Please email any bugs, comments, and/or additions to this file to:
23 # configure@cygnus.com
24
25 # This file was written by K. Richard Pixley.
26
27 #
28 # Shell script to create proper links to machine-dependent files in
29 # preparation for compilation.
30 #
31 # If configure succeeds, it leaves its status in config.status.
32 # If configure fails after disturbing the status quo, 
33 #       config.status is removed.
34 #
35
36 export PATH || (echo "OOPS, this isn't sh.  Desperation time.  I will feed myself to sh."; sh $0 $argv; kill $$)
37
38 remove=rm
39 hard_link=ln
40 symbolic_link='ln -s'
41
42 #for Test
43 #remove="echo rm"
44 #hard_link="echo ln"
45 #symbolic_link="echo ln -s"
46
47 # clear some things potentially inherited from environment.
48
49 Makefile=Makefile
50 Makefile_in=Makefile.in
51 arguments=$*
52 build_alias=
53 configdirs=
54 exec_prefix=
55 exec_prefixoption=
56 fatal=
57 floating_point=default
58 gas=default
59 host_alias=NOHOST
60 host_makefile_frag=
61 moveifchange=
62 norecursion=
63 other_options=
64 package_makefile_frag=
65 prefix=/usr/local
66 progname=
67 program_prefix=
68 program_prefixoption=
69 program_suffix=
70 program_suffixoption=
71 program_transform_name=
72 program_transform_nameoption=
73 redirect=">/dev/null"
74 removing=
75 site=
76 site_makefile_frag=
77 site_option=
78 srcdir=
79 srctrigger=
80 subdirs=
81 target_alias=NOTARGET
82 target_makefile_frag=
83 undefs=NOUNDEFS
84 version="$Revision$"
85 x11=default
86
87 ### we might need to use some other shell than /bin/sh for running subshells
88 #
89 config_shell=${CONFIG_SHELL-/bin/sh}
90
91 NO_EDIT="This file was generated automatically by configure.  Do not edit."
92
93 ## this is a little touchy and won't always work, but...
94 ##
95 ## if the argv[0] starts with a slash then it is an absolute name that can (and
96 ## must) be used as is.
97 ##
98 ## otherwise, if argv[0] has no slash in it, we can assume that it is on the
99 ## path.  Since PATH might include "." we also add `pwd` to the end of PATH.
100 ##
101
102 progname=$0
103 # if PWD already has a value, it is probably wrong.
104 if [ -n "$PWD" ]; then PWD=`pwd`; fi
105
106 case "${progname}" in
107 /*) ;;
108 */*) ;;
109 *)
110         PATH=$PATH:${PWD=`pwd`} ; export PATH
111         ;;
112 esac
113
114 # Loop over all args
115
116 while :
117 do
118
119 # Break out if there are no more args
120         case $# in
121         0)
122                 break
123                 ;;
124         esac
125
126 # Get the first arg, and shuffle
127         option=$1
128         shift
129
130 # Make all options have two hyphens
131         orig_option=$option     # Save original for error messages
132         case $option in
133         --*) ;;
134         -*) option=-$option ;;
135         esac
136                 
137 # Split out the argument for options that take them
138         case $option in
139         --*=*)
140                 optarg=`echo $option | sed -e 's/^[^=]*=//'`
141                 ;;
142 # These options have mandatory values.  Since we didn't find an = sign,
143 # the value must be in the next argument
144         --b* | --ex* | --ho* | --pre* | --program-p* | --program-s* | --program-t* | --si* | --sr* | --ta* | --tm*)
145                 optarg=$1
146                 shift
147                 ;;
148         esac
149
150 # Now, process the options
151         case $option in
152
153         --build* | --b*)
154                 case "$build_alias" in
155                 "") build_alias=$optarg ;;
156                 *) echo '***' Can only configure for one build machine at a time.  1>&2
157                    fatal=yes
158                    ;;
159                 esac
160                 ;;
161         --enable-*)
162                 case "$option" in
163                 *=*)    ;;
164                 *)      optarg=yes ;;
165                 esac
166
167                 enableopt=`echo ${option} | sed 's:^--::;s:=.*$::;s:-:_:g'`
168                 eval $enableopt="$optarg"
169                 enableoptions="$enableoptions $option"
170                 ;;
171         --exec-prefix* | --ex*)
172                 exec_prefix=$optarg
173                 exec_prefixoption="--exec-prefix=$optarg"
174                 ;;
175         --gas | --g*)
176                 gas=yes
177                 ;;
178         --help | --he*)
179                 fatal=yes
180                 ;;
181         --host* | --ho*)
182                 case $host_alias in
183                 NOHOST) host_alias=$optarg ;;
184                 *) echo '***' Can only configure for one host at a time.  1>&2
185                    fatal=yes
186                    ;;
187                 esac
188                 ;;
189         --nfp | --nf*)
190                 floating_point=no
191                 ;;
192         --norecursion | --no*)
193                 norecursion=yes
194                 ;;
195         --prefix* | --pre*)
196                 prefix=$optarg
197                 prefixoption="--prefix=$optarg"
198                 ;;
199         --program-prefix* | --program-p*)
200                 program_prefix=$optarg
201                 program_prefixoption="--program-prefix=$optarg"
202                 ;;
203         --program-suffix* | --program-s*)
204                 program_suffix=$optarg
205                 program_suffixoption="--program-suffix=$optarg"
206                 ;;
207         --program-transform-name* | --program-t*)
208                 # Double any backslashes or dollar signs in the argument
209                 program_transform_name="${program_transform_name} -e `echo ${optarg} | sed -e 's/\\\\/\\\\\\\\/g' -e 's/\\\$/$$/g'`"
210                 program_transform_nameoption="--program-transform-nameoption='$optarg'"
211                 ;;
212         --rm)
213                 removing=--rm
214                 ;;
215         --site* | --si*)
216                 site=$optarg
217                 site_option="--site=$optarg"
218                 ;;
219         --srcdir*/ | --sr*/)
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=`echo $optarg | sed -e 's:/$::'`
225                 ;;
226         --srcdir* | --sr*)
227                 srcdir=$optarg
228                 ;;
229         --target* | --ta*)
230                 case $target_alias in
231                 NOTARGET) target_alias=$optarg ;;
232                 *) echo '***' Can only configure for one target at a time.  1>&2
233                    fatal=yes
234                    ;;
235                 esac
236                 ;;
237         --tmpdir* | --tm*)
238                 TMPDIR=$optarg
239                 tmpdiroption="--tmpdir=$optarg"
240                 ;;
241         --verbose | --v | --verb*)
242                 redirect=
243                 verbose=--verbose
244                 ;;
245         --version | --V | --vers*)
246                 echo "This is Cygnus Configure version" `echo ${version} | sed 's/[ $:]//g'`
247                 exit 0
248                 ;;
249         --with-*)
250                 case "$option" in
251                 *=*)    ;;
252                 *)      optarg=yes ;;
253                 esac
254
255                 withopt=`echo ${option} | sed 's:^--::;s:=.*$::;s:-:_:g'`
256                 eval $withopt="$optarg"
257                 withoptions="$withoptions $option"
258                 ;;
259         --without-*)
260                 withopt=`echo ${option} | sed 's:^--::;s:out::;s:-:_:g'`                
261                 eval $withopt=no
262                 withoutoptions="$withoutoptions $option"
263                 ;;
264         --x)    with_x=yes
265                 withoptions="$withoptions --with-x"
266                 ;;
267         --*)
268                 echo "Warning: Unrecognized option: \"$orig_option\"". >&2
269                 # Pass the option to any configure scripts in subdirectories
270                 # in case they recognize it.
271                 other_options="$other_options $orig_option"
272                 ;;
273         *)
274                 case $undefs in
275                 NOUNDEFS) undefs=$option ;;
276                 *) echo '***' Can only configure for one host and one target at a time.  1>&2
277                    fatal=yes
278                    ;;
279                 esac
280                 ;;
281         esac
282 done
283
284 # process host and target
285
286 # Do some error checking and defaulting for the host and target type.
287 # The inputs are:
288 #    configure --host=HOST --target=TARGET UNDEFS
289 #
290 # The rules are:
291 # 1. You aren't allowed to specify --host, --target, and undefs at the
292 #    same time.
293 # 2. Host defaults to undefs.
294 # 3. If undefs is not specified, then host defaults to the current host,
295 #    as determined by config.guess.
296 # 4. Target defaults to undefs.
297 # 5. If undefs is not specified, then target defaults to host.
298
299 case "${fatal}" in
300 "")
301         # Make sure that host, target & undefs aren't all specified at the
302         # same time.
303         case $host_alias---$target_alias---$undefs in
304         NOHOST---*---* | *---NOTARGET---* | *---*---NOUNDEFS)
305                 ;;
306         *) echo '***' Can only configure for one host and one target at a time.  1>&2
307            fatal=yes
308            break 2
309                 ;;
310         esac
311
312         # Now, do defaulting for host.
313         case $host_alias in
314         NOHOST)
315                 case $undefs in
316                 NOUNDEFS)
317                         # Neither --host option nor undefs were present.
318                         # Call config.guess.
319                         guesssys=`echo ${progname} | sed 's/configure$/config.guess/'`
320                         if host_alias=`${guesssys}`
321                         then
322                                 echo "Configuring for a ${host_alias} host." 1>&2
323                                 arguments="--host=$host_alias $arguments"
324                         else
325                                 echo 'Config.guess failed to determine the host type.  You need to specify one.' 1>&2
326                                 fatal=yes
327                         fi
328                         ;;
329                 *)
330                         host_alias=$undefs
331                         ;;
332                 esac
333         esac
334
335         # Do defaulting for target.  If --target option isn't present, default
336         # to undefs.  If undefs isn't present, default to host.
337         case $target_alias in
338         NOTARGET)
339                 case $undefs in
340                 NOUNDEFS)
341                         target_alias=$host_alias
342                         ;;
343                 *)
344                         target_alias=$undefs
345                         ;;
346                 esac
347         esac
348         ;;
349 *) ;;
350 esac
351
352 if [ -n "${fatal}" -o "${host_alias}" = "help" ] ; then
353         exec 1>&2
354         echo Usage: configure HOST
355         echo
356         echo Options: [defaults in brackets]
357         echo ' --prefix=MYDIR            configure for installation of host independent files into MYDIR. ["/usr/local"]'
358         echo ' --exec-prefix=MYDIR       configure for installation of host dependent files into MYDIR. ["/usr/local"]'
359         echo ' --help                    print this message. [normal config]'
360         echo ' --build=BUILD             configure for building on BUILD.  [BUILD=HOST]'
361         echo ' --host=HOST               configure for HOST.  [determined via config.guess]'
362         echo ' --norecursion             configure this directory only. [recurse]'
363         echo ' --program-prefix=FOO      install programs with FOO prepended to their names. [ "" ]'
364         echo ' --program-suffix=FOO      install programs with FOO appended to their names. [ "" ]'
365         echo ' --program-transform-name=FOO install programs with names transformed by sed pattern FOO. [ "" ]'
366         echo ' --site=SITE               configure with site specific makefile for SITE'
367         echo ' --srcdir=DIR              find the sources in DIR. ["." or ".."]'
368         echo ' --target=TARGET   configure for TARGET.  [TARGET = HOST]'
369         echo ' --tmpdir=TMPDIR   create temporary files in TMPDIR.  [ TMPDIR = "/tmp" ]'
370         echo ' --nfp                     configure the compilers default to soft floating point. [hard float]'
371         echo ' --with-FOO, --with-FOO=BAR package FOO is available (parameter BAR)'
372         echo ' --without-FOO             package FOO is NOT available'
373         echo ' --enable-FOO, --enable-FOO=BAR include feature FOO (parameter BAR)'
374         echo
375         echo 'Where HOST and TARGET are something like "vax", "sun3", "encore", etc.'
376         echo
377         if [ -r config.status ] ; then
378                 cat config.status
379         fi
380
381         exit 1
382 fi
383
384 configsub=`echo ${progname} | sed 's/configure$/config.sub/'`
385 moveifchange=`echo ${progname} | sed 's/configure$/move-if-change/'`
386
387 # this is a hack.  sun4 must always be a valid host alias or this will fail.
388 if ${configsub} sun4 >/dev/null 2>&1 ; then
389         true
390 else
391         echo '***' cannot find config.sub.  1>&2
392         exit 1
393 fi
394
395 touch config.junk
396 if ${moveifchange} config.junk config.trash ; then
397         true
398 else
399         echo '***' cannot find move-if-change.  1>&2
400         exit 1
401 fi
402 rm -f config.junk config.trash
403
404 case "${srcdir}" in
405 "")
406         if [ -r configure.in ] ; then
407                 srcdir=.
408         else
409                 if [ -r ${progname}.in ] ; then
410                         srcdir=`echo ${progname} | sed 's:/configure$::'`
411                 else
412                         echo '***' "Can't find configure.in.  Try using --srcdir=some_dir"  1>&2
413                         exit 1
414                 fi
415         fi
416         ;;
417 *) ;;
418 esac
419
420 ### warn about some conflicting configurations.
421
422 case "${srcdir}" in
423 ".") ;;
424 *)
425         if [ -f ${srcdir}/config.status ] ; then
426                 echo '***' Cannot configure here in \"${PWD=`pwd`}\" when \"${srcdir}\" is currently configured. 1>&2
427                 exit 1
428         fi
429 esac
430
431 # default exec_prefix
432 case "${exec_prefix}" in
433 "") exec_prefix="\$(prefix)" ;;
434 *) ;;
435 esac
436
437 ### break up ${srcdir}/configure.in.
438 case "`grep '^# per\-host:' ${srcdir}/configure.in`" in
439 "")
440         echo '***' ${srcdir}/configure.in has no \"per-host:\" line. 1>&2
441         exit 1
442         ;;
443 *) ;;
444 esac
445
446 case "`grep '^# per\-target:' ${srcdir}/configure.in`" in
447 "")
448         echo '***' ${srcdir}/configure.in has no \"per-target:\" line. 1>&2
449         exit 1
450         ;;
451 *) ;;
452 esac
453
454 case "${TMPDIR}" in
455 "") TMPDIR=/tmp ; export TMPDIR ;;
456 *) ;;
457 esac
458
459 # keep this filename short for &%*%$*# 14 char file names
460 tmpfile=${TMPDIR}/cONf$$
461 trap "rm -f ${tmpfile}.com ${tmpfile}.tgt ${tmpfile}.hst ${tmpfile}.pos" 0
462
463 # split ${srcdir}/configure.in into common, per-host, per-target,
464 # and post-target parts.  Post-target is optional.
465 sed -e '/^# per\-host:/,$d' ${srcdir}/configure.in > ${tmpfile}.com
466 sed -e '1,/^# per\-host:/d' -e '/^# per\-target:/,$d' ${srcdir}/configure.in > ${tmpfile}.hst
467 if grep '^# post-target:' ${srcdir}/configure.in >/dev/null ; then
468   sed -e '1,/^# per\-target:/d' -e '/^# post\-target:/,$d' ${srcdir}/configure.in > ${tmpfile}.tgt
469   sed -e '1,/^# post\-target:/d' ${srcdir}/configure.in > ${tmpfile}.pos
470 else
471   sed -e '1,/^# per\-target:/d' ${srcdir}/configure.in > ${tmpfile}.tgt
472   echo >${tmpfile}.pos
473 fi
474
475 ### do common part of configure.in
476
477 . ${tmpfile}.com
478
479 # some sanity checks on configure.in
480 case "${srctrigger}" in
481 "")
482         echo '***' srctrigger not set in ${PWD=`pwd`}/configure.in.  1>&2
483         exit 1
484         ;;
485 *) ;;
486 esac
487
488 case "${build_alias}" in
489 "")     ;;
490 *)
491         result=`${configsub} ${build_alias}`
492         buildopt="--build=${build_alias}"
493         build_cpu=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\1/'`
494         build_vendor=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\2/'`
495         build_os=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\3/'`
496         build=${build_cpu}-${build_vendor}-${build_os}
497         ;;
498 esac
499
500 result=`${configsub} ${host_alias}`
501 host_cpu=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\1/'`
502 host_vendor=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\2/'`
503 host_os=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\3/'`
504 host=${host_cpu}-${host_vendor}-${host_os}
505
506 . ${tmpfile}.hst
507
508 result=`${configsub} ${target_alias}`
509 target_cpu=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\1/'`
510 target_vendor=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\2/'`
511 target_os=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\3/'`
512 target=${target_cpu}-${target_vendor}-${target_os}
513
514 . ${tmpfile}.tgt
515
516 # Find the source files, if location was not specified.
517 case "${srcdir}" in
518 "")
519         srcdirdefaulted=1
520         srcdir=.
521         if [ ! -r ${srctrigger} ] ; then
522                 srcdir=..
523         fi
524         ;;
525 *) ;;
526 esac
527
528 if [ ! -r ${srcdir}/${srctrigger} ] ; then
529         case "${srcdirdefaulted}" in
530         "") echo '***' "${progname}: Can't find ${srcname} sources in ${PWD=`pwd`}/${srcdir}" 1>&2 ;;
531         *)  echo '***' "${progname}: Can't find ${srcname} sources in ${PWD=`pwd`}/. or ${PWD=`pwd`}/.." 1>&2 ;;
532         esac
533
534         echo '***' \(At least ${srctrigger} is missing.\) 1>&2
535         exit 1
536 fi
537
538 # Some systems (e.g., one of the i386-aix systems the gas testers are
539 # using) don't handle "\$" correctly, so don't use it here.
540 tooldir='$(exec_prefix)'/${target_alias}
541
542 if [ "${host_alias}" != "${target_alias}" ] ; then
543     if [ "${program_prefixoption}" = "" ] ; then
544         if [ "${program_suffixoption}" = "" ] ; then 
545             if [ "${program_transform_nameoption}" = "" ] ; then
546                 program_prefix=${target_alias}- ;
547             fi
548         fi
549     fi
550 fi
551
552 # Merge program_prefix and program_suffix onto program_transform_name
553 # Use a double $ so that make ignores it
554 if [ "${program_suffix}" != "" ] ; then
555     program_transform_name="-e s,\$\$,${program_suffix}, ${program_transform_name}"
556 fi
557
558 if [ "${program_prefix}" != "" ] ; then
559     program_transform_name="-e s,^,${program_prefix}, ${program_transform_name}"
560 fi
561
562 for subdir in . ${subdirs} ; do
563
564     # ${subdir} is relative path from . to the directory we're currently
565     # configuring.
566     # ${invsubdir} is inverse of ${subdir), *with* trailing /, if needed.
567     invsubdir=`echo ${subdir}/ | sed -e 's|\./||g' -e 's|[^/]*/|../|g'`
568
569     ### figure out what to do with srcdir
570     case "${srcdir}" in
571         ".")  # no -srcdir option.  We're building in place.
572                 makesrcdir=. ;;
573         /*) # absolute path
574                 makesrcdir=`echo ${srcdir}/${subdir} | sed -e 's|/\.$||'`
575                 ;;
576         *) # otherwise relative
577                 case "${subdir}" in
578                 .) makesrcdir=${srcdir} ;;
579                 *) makesrcdir=${invsubdir}${srcdir}/${subdir} ;;
580                 esac
581                 ;;
582     esac
583
584     if [ "${subdir}/" != "./" ] ; then
585         Makefile=${subdir}/Makefile
586     fi
587
588     if [ ! -d ${subdir} ] ; then
589         if mkdir ${subdir} ; then
590                 true
591         else
592                 echo '***' "${progname}: could not make ${PWD=`pwd`}/${subdir}" 1>&2
593                 exit 1
594         fi
595     fi
596
597     case "${removing}" in
598     "")
599         case "${subdir}" in
600         .) ;;
601         *) eval echo Building in ${subdir} ${redirect} ;;
602         esac
603
604         # FIXME Should this be done recursively ??? (Useful for e.g. gdbtest)
605         # Set up the list of links to be made.
606         # ${links} is the list of link names, and ${files} is the list of names to link to.
607
608         # Make the links.
609         configlinks="${links}"
610         if [ -r ${subdir}/config.status ] ; then
611                 mv -f ${subdir}/config.status ${subdir}/config.back
612         fi
613         while [ -n "${files}" ] ; do
614                 # set file to car of files, files to cdr of files
615                 set ${files}; file=$1; shift; files=$*
616                 set ${links}; link=$1; shift; links=$*
617
618                 if [ ! -r ${srcdir}/${file} ] ; then
619                         echo '***' "${progname}: cannot create a link \"${link}\"," 1>&2
620                         echo '***' "since the file \"${srcdir}/${file}\" does not exist." 1>&2
621                         exit 1
622                 fi
623
624                 ${remove} -f ${link}
625                 # Make a symlink if possible, otherwise try a hard link
626                 ${symbolic_link} ${srcdir}/${file} ${link} 2>/dev/null || ${hard_link} ${srcdir}/${file} ${link}
627
628                 if [ ! -r ${link} ] ; then
629                         echo '***' "${progname}: unable to link \"${link}\" to \"${srcdir}/${file}\"." 1>&2
630                         exit 1
631                 fi
632
633                 echo "Linked \"${link}\" to \"${srcdir}/${file}\"."
634         done
635
636         # Create a .gdbinit file which runs the one in srcdir
637         # and tells GDB to look there for source files.
638
639         if [ -r ${srcdir}/${subdir}/.gdbinit ] ; then
640                 case ${srcdir} in
641                 .) ;;
642                 *) cat > ${subdir}/.gdbinit <<EOF
643 # ${NO_EDIT}
644 dir .
645 dir ${makesrcdir}
646 source ${makesrcdir}/.gdbinit
647 EOF
648                         ;;
649                 esac
650         fi
651
652         # Install a makefile, and make it set VPATH
653         # if necessary so that the sources are found.
654         # Also change its value of srcdir.
655         # NOTE: Makefile generation constitutes the majority of the time in configure.  Hence, this section has
656         # been somewhat optimized and is perhaps a bit twisty.
657
658         # code is order so as to try to sed the smallest input files we know.
659
660         # the four makefile fragments MUST end up in the resulting Makefile in this order: 
661         # package, target, host, and site.  so do these separately because I don't trust the
662         #  order of sed -e expressions.
663
664         if [ -f ${srcdir}/${subdir}/${Makefile_in} ] ; then
665
666             # Conditionalize for this site from "Makefile.in" (or whatever it's called) into Makefile.tem
667             rm -f ${subdir}/Makefile.tem
668               case "${site}" in
669               "") cp ${srcdir}/${subdir}/${Makefile_in} ${subdir}/Makefile.tem ;;
670               *)
671                       site_makefile_frag=${srcdir}/config/ms-${site}
672
673                       if [ -f ${site_makefile_frag} ] ; then
674                               sed -e "/^####/  r ${site_makefile_frag}" ${srcdir}/${subdir}/${Makefile_in} \
675                                       > ${subdir}/Makefile.tem
676                       else
677                               cp ${srcdir}/${subdir}/${Makefile_in} ${subdir}/Makefile.tem
678                               site_makefile_frag=
679                       fi
680                       ;;
681             esac
682             # working copy now in ${subdir}/Makefile.tem
683
684             # Conditionalize the makefile for this host.
685             rm -f ${Makefile}
686             case "${host_makefile_frag}" in
687               "") mv ${subdir}/Makefile.tem ${Makefile} ;;
688               *)
689                       if [ ! -f ${host_makefile_frag} ] ; then
690                               host_makefile_frag=${srcdir}/${host_makefile_frag}
691                       fi
692                       if [ -f ${host_makefile_frag} ] ; then
693                               sed -e "/^####/  r ${host_makefile_frag}" ${subdir}/Makefile.tem > ${Makefile}
694                       else
695                               echo '***' Expected host makefile fragment \"${host_makefile_frag}\" 1>&2
696                               echo '***' is missing in ${PWD=`pwd`}. 1>&2
697                               mv ${subdir}/Makefile.tem ${Makefile}
698                       fi
699             esac
700             # working copy now in ${Makefile}
701
702             # Conditionalize the makefile for this target.
703             rm -f ${subdir}/Makefile.tem
704             case "${target_makefile_frag}" in
705               "") mv ${Makefile} ${subdir}/Makefile.tem ;;
706               *)
707                       if [ ! -f ${target_makefile_frag} ] ; then
708                               target_makefile_frag=${srcdir}/${target_makefile_frag}
709                       fi
710                       if [ -f ${target_makefile_frag} ] ; then
711                               sed -e "/^####/  r ${target_makefile_frag}" ${Makefile} > ${subdir}/Makefile.tem
712                       else
713                               mv ${Makefile} ${subdir}/Makefile.tem
714                               target_makefile_frag=
715                       fi
716                       ;;
717             esac
718             # real copy now in ${subdir}/Makefile.tem
719
720             # Conditionalize the makefile for this package.
721             rm -f ${Makefile}
722             case "${package_makefile_frag}" in
723               "") mv ${subdir}/Makefile.tem ${Makefile} ;;
724               *)
725                       if [ ! -f ${package_makefile_frag} ] ; then
726                               package_makefile_frag=${srcdir}/${package_makefile_frag}
727                       fi
728                       if [ -f ${package_makefile_frag} ] ; then
729                               sed -e "/^####/  r ${package_makefile_frag}" ${subdir}/Makefile.tem > ${Makefile}
730                       else
731                               echo '***' Expected package makefile fragment \"${package_makefile_frag}\" 1>&2
732                               echo '***' is missing in ${PWD=`pwd`}. 1>&2
733                               mv ${subdir}/Makefile.tem ${Makefile}
734                       fi
735             esac
736             # working copy now in ${Makefile}
737
738             mv ${Makefile} ${subdir}/Makefile.tem
739
740             # real copy now in ${subdir}/Makefile.tem
741
742             # prepend warning about editting, and a bunch of variables.
743             rm -f ${Makefile}
744             cat > ${Makefile} <<EOF
745 # ${NO_EDIT}
746 VPATH = ${makesrcdir}
747 links = ${configlinks}
748 host_alias = ${host_alias}
749 host_cpu = ${host_cpu}
750 host_vendor = ${host_vendor}
751 host_os = ${host_os}
752 host_canonical = ${host_cpu}-${host_vendor}-${host_os}
753 target_alias = ${target_alias}
754 target_cpu = ${target_cpu}
755 target_vendor = ${target_vendor}
756 target_os = ${target_os}
757 target_canonical = ${target_cpu}-${target_vendor}-${target_os}
758 EOF
759             case "${build}" in
760               "") ;;
761               *)  cat >> ${Makefile} << EOF
762 build_alias = ${build_alias}
763 build_cpu = ${build_cpu}
764 build_vendor = ${build_vendor}
765 build_os = ${build_os}
766 build_canonical = ${build_cpu}-${build_vendor}-${build_os}
767 EOF
768             esac
769
770             case "${package_makefile_frag}" in
771               "") ;;
772               /*) echo package_makefile_frag = ${package_makefile_frag} >>${Makefile} ;;
773               *)  echo package_makefile_frag = ${invsubdir}${package_makefile_frag} >>${Makefile} ;;
774             esac
775
776             case "${target_makefile_frag}" in
777               "") ;;
778               /*) echo target_makefile_frag = ${target_makefile_frag} >>${Makefile} ;;
779               *)  echo target_makefile_frag = ${invsubdir}${target_makefile_frag} >>${Makefile} ;;
780             esac
781
782             case "${host_makefile_frag}" in
783               "") ;;
784               /*) echo host_makefile_frag = ${host_makefile_frag} >>${Makefile} ;;
785               *)  echo host_makefile_frag = ${invsubdir}${host_makefile_frag} >>${Makefile} ;;
786             esac
787
788             if [ "${site_makefile_frag}" != "" ] ; then
789                 echo site_makefile_frag = ${invsubdir}${site_makefile_frag} >>${Makefile}
790             fi 
791
792             # make sure that some sort of reasonable default exists for these 
793             # two variables
794             CXX=${CXX-"g++ -O"}
795             CC=${CC-cc}
796
797             # reset prefix, exec_prefix, srcdir, SUBDIRS, NONSUBDIRS,
798             # remove any form feeds.
799             if [ -z "${subdirs}" ]; then
800                 rm -f ${subdir}/Makefile.tem2
801                 sed -e "s:^SUBDIRS[     ]*=.*$:SUBDIRS = ${configdirs}:" \
802                     -e "s:^NONSUBDIRS[  ]*=.*$:NONSUBDIRS = ${noconfigdirs}:" \
803                     ${subdir}/Makefile.tem > ${subdir}/Makefile.tem2
804                 rm -f ${subdir}/Makefile.tem
805                 mv ${subdir}/Makefile.tem2 ${subdir}/Makefile.tem
806             fi
807             sed -e "s:^prefix[  ]*=.*$:prefix = ${prefix}:" \
808                     -e "s:^exec_prefix[         ]*=.*$:exec_prefix = ${exec_prefix}:" \
809                     -e "s:^SHELL[        ]*=.*$:SHELL = ${config_shell}:" \
810                     -e "s:^srcdir[      ]*=.*$:srcdir = ${makesrcdir}:" \
811                     -e "s/\f//" \
812                     -e "s:^program_prefix[      ]*=.*$:program_prefix = ${program_prefix}:" \
813                     -e "s:^program_suffix[      ]*=.*$:program_suffix = ${program_suffix}:" \
814                     -e "s:^program_transform_name[      ]*=.*$:program_transform_name = ${program_transform_name}:" \
815                     -e "s:^tooldir[     ]*=.*$:tooldir = ${tooldir}:" \
816                     ${subdir}/Makefile.tem >> ${Makefile}
817             # final copy now in ${Makefile}
818
819         else
820            echo "No Makefile.in found in ${srcdir}/${subdir}, unable to configure" 1>&2
821         fi
822
823         rm -f ${subdir}/Makefile.tem
824
825         case "${host_makefile_frag}" in
826         "") using= ;;
827         *) using="and \"${host_makefile_frag}\"" ;;
828         esac
829
830         case "${target_makefile_frag}" in
831         "") ;;
832         *) using="${using} and \"${target_makefile_frag}\"" ;;
833         esac
834
835         case "${site_makefile_frag}" in
836         "") ;;
837         *) using="${using} and \"${site_makefile_frag}\"" ;;
838         esac
839
840         newusing=`echo "${using}" | sed 's/and/using/'`
841         using=${newusing}
842         echo "Created \"${Makefile}\" in" ${PWD=`pwd`} ${using}
843
844         . ${tmpfile}.pos
845
846         # describe the chosen configuration in config.status.
847         # Make that file a shellscript which will reestablish
848         # the same configuration.  Used in Makefiles to rebuild
849         # Makefiles.
850
851         case "${norecursion}" in
852         "") arguments="${arguments} --norecursion" ;;
853         *) ;;
854         esac
855
856         if [ ${subdir} = . ] ; then
857             echo "#!/bin/sh
858 # ${NO_EDIT}
859 # This directory was configured as follows:
860 ${progname}" ${arguments}  "
861 # ${using}" > ${subdir}/config.new
862         else
863             echo "#!/bin/sh
864 # ${NO_EDIT}
865 # This directory was configured as follows:
866 cd ${invsubdir}
867 ${progname}" ${arguments}  "
868 # ${using}" > ${subdir}/config.new
869         fi
870         chmod a+x ${subdir}/config.new
871         if [ -r ${subdir}/config.back ] ; then
872                 mv -f ${subdir}/config.back ${subdir}/config.status
873         fi
874         ${moveifchange} ${subdir}/config.new ${subdir}/config.status
875         ;;
876
877     *)  rm -f ${Makefile} ${subdir}/config.status ${links} ;;
878     esac
879 done
880
881 # If there are subdirectories, then recur. 
882 if [ -z "${norecursion}" -a -n "${configdirs}" ] ; then 
883         for configdir in ${configdirs} ; do
884
885                 if [ -d ${srcdir}/${configdir} ] ; then
886                         eval echo Configuring ${configdir}... ${redirect}
887                         case "${srcdir}" in
888                         ".") ;;
889                         *)
890                                 if [ ! -d ./${configdir} ] ; then
891                                         if mkdir ./${configdir} ; then
892                                                 true
893                                         else
894                                                 echo '***' "${progname}: could not make ${PWD=`pwd`}/${configdir}" 1>&2
895                                                 exit 1
896                                         fi
897                                 fi
898                                 ;;
899                         esac
900
901                         POPDIR=${PWD=`pwd`}
902                         cd ${configdir} 
903
904 ### figure out what to do with srcdir
905                         case "${srcdir}" in
906                         ".") newsrcdir=${srcdir} ;; # no -srcdir option.  We're building in place.
907                         /*) # absolute path
908                                 newsrcdir=${srcdir}/${configdir}
909                                 srcdiroption="--srcdir=${newsrcdir}"
910                                 ;;
911                         *) # otherwise relative
912                                 newsrcdir=../${srcdir}/${configdir}
913                                 srcdiroption="--srcdir=${newsrcdir}"
914                                 ;;
915                         esac
916
917 ### check for guested configure, otherwise fix possibly relative progname
918                         if [ -f ${newsrcdir}/configure ] ; then
919                                 recprog=${newsrcdir}/configure
920                         elif [ -f ${newsrcdir}/configure.in ] ; then
921                                 case "${progname}" in
922                                 /*)     recprog=${progname} ;;
923                                 *)      recprog=../${progname} ;;
924                                 esac
925                         else
926                                 eval echo No configuration information in ${configdir} ${redirect}
927                                 recprog=
928                         fi
929
930 ### The recursion line is here.
931                         if [ ! -z "${recprog}" ] ; then
932                                 if eval ${config_shell} ${recprog} ${verbose} ${buildopt} --host=${host_alias} --target=${target_alias} \
933                                         ${prefixoption} ${tmpdiroption} ${exec_prefixoption} \
934                                         ${srcdiroption} ${program_prefixoption} ${program_suffixoption} ${program_transform_nameoption} ${site_option} ${withoptions} ${withoutoptions} ${enableoptions} ${removing} ${other_options} ${redirect} ; then
935                                         true
936                                 else
937                                         echo Configure in `pwd` failed, exiting. 1>&2
938                                         exit 1
939                                 fi
940                         fi
941
942                         cd ${POPDIR}
943                 fi
944         done
945 fi
946
947 exit 0
948
949 #
950 # Local Variables:
951 # fill-column: 131
952 # End:
953 #
954
955 # end of configure