resync
[external/binutils.git] / readline / configure
1 #!/bin/sh
2
3 # Configuration script
4 #   Copyright (C) 1988, 1990, 1991 Free Software Foundation, Inc.
5
6 #This file is part of GNU.
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 # $Id$
23
24 #
25 # Shell script to create proper links to machine-dependent files in
26 # preparation for compilation.
27 #
28 # If configure succeeds, it leaves its status in config.status.
29 # If configure fails after disturbing the status quo, 
30 #       config.status is removed.
31 #
32
33 remove=rm
34 hard_link=ln
35 symbolic_link='ln -s'
36
37 #for Test
38 #remove="echo rm"
39 #hard_link="echo ln"
40 #symbolic_link="echo ln -s"
41
42 progname=$0
43
44 # clear some things potentially inherited from environment.
45 ansi=
46 arguments=$*
47 defaulttargets=
48 destdir=
49 fatal=
50 hostsubdir=
51 Makefile=Makefile
52 Makefile_in=Makefile.in
53 norecursion=
54 recurring=
55 removing=
56 srcdir=
57 srctrigger=
58 target=
59 targets=
60 commontargets=
61 configdirs=
62 targetsubdir=
63 template=
64 verbose=
65
66 for arg in $*;
67 do
68         case ${arg} in
69         -ansi | +a*)
70                 ansi=true
71                 clib=clib
72                 ;;
73         -destdir=* | +destdir=* | +destdi=* | +destd=* | +dest=* | +des=* | +de=* | +d=*)
74                 destdir=`echo ${arg} | sed 's/[+-]d[a-z]*=//'`
75                 ;;
76         -languages=* | +languages=* | +language=* | +languag=* \
77                 | +langua=* | +langu=* | +lang=* | +lan=* | +la=* \
78                 | +l=*)
79                 languages="${languages} `echo ${arg} | sed 's/[+-]l[a-z]*=//'`"
80                 ;;
81         -gas | +g*)
82                 gas=yes
83                 ;;
84         -help | +h*)
85                 fatal=true
86                 ;;
87         -nfp | +nf*)
88                 nfp=yes
89                 ;;
90         -norecursion | +no*)
91                 norecursion=true
92                 ;;
93         -recurring | +recurring | +recurrin | +recurri | +recurr | +recur | +recu | +rec | +re)
94                 recurring=true
95                 ;;
96         -rm | +rm)
97                 removing=${arg}
98                 ;;
99 #       -srcdir=* | +srcdir=* | +srcdi=* | +srcd=* | +src=* | +sr=* | +s=*)
100 #               srcdir=`echo ${arg} | sed 's/[+-]s[a-z]*=//'`
101 #               ;;
102         -subdirs | +f* | +su*)
103                 subdirs=${arg}
104                 ;;
105         -target=* | +target=* | +targe=* | +targ=* | +tar=* | +ta=*)
106                 if [ -n "${targets}" ] ; then
107                         subdirs="+subdirs"
108                 fi
109
110                 newtargets="${targets} `echo ${arg} | sed 's/[+-]t[a-z]*=//'`"
111                 targets="${newtargets}"
112                 ;;
113         -template=* | +template=* | +templat=* | +templa=* | +templ=* | +temp=* | +tem=* | +te=*)
114                 template=`echo ${arg} | sed 's/[+-]template=//'`
115                 ;;
116         -v | -verbose | +v*)
117                 verbose=${arg}
118                 ;;
119         -* | +*)
120                 (echo ;
121                 echo "Unrecognized option: \"${arg}\"". ;
122                 echo) 1>&2
123                 fatal=true
124                 ;;
125         *)
126                 if [ -n "${hosts}" ] ; then
127                         subdirs="+subdirs"
128                 fi
129
130                 newhosts="${hosts} ${arg}"
131                 hosts=${newhosts}
132                 ;;
133         esac
134 done
135
136 if [ -n "${verbose}" ] ; then
137         echo `pwd`/configure $*
138 fi
139
140 # process host and target only if not rebuilding configure itself or removing.
141 if [ -z "${template}" -a -z "${removing}" -a -z "${fatal}" ] ; then
142         # Complain if an arg is missing
143         if [ -z "${hosts}" ] ; then
144                 (echo ;
145                 echo "configure: No HOST specified." ;
146                 echo) 1>&2
147                 fatal=true
148         fi
149 fi
150
151 if [ -n "${fatal}" -o "${hosts}" = "help" ] ; then
152         (echo "Usage: configure HOST" ;
153         echo ;
154         echo "Options: [defaults in brackets]" ;
155         echo " +ansi            configure w/ANSI library. [no ansi lib]" ;
156         echo " +destdir=MYDIR   configure for installation into MYDIR. [/usr/local]" ;
157         echo " +subdirs         configure in subdirectories.  [in source directories]" ;
158         echo " +lang=LANG       configure to build LANG. [gcc]" ;
159         echo " +help            print this message. [normal config]" ;
160         echo " +gas             configure the compilers for use with gas. [native as]" ;
161         echo " +nfp             configure the compilers default to soft floating point. [hard float]" ;
162         echo " +norecursion     configure this directory only. [recurse]" ;
163         echo " +rm              remove this configuration. [build a configuration]" ;
164         echo " +target=TARGET   configure for TARGET.  [TARGET = HOST]" ;
165         echo " +template=TEM    rebuild configure using TEM. [normal config]" ;
166         echo ;
167         echo "Where HOST and TARGET are something like \"vax\", \"sun3\", \"encore\", etc." ;
168         echo "Asking for more than one \"+target\" implies \"+subdirs\".  Any other" ;
169         echo "options given will apply to all targets.") 1>&2
170
171         if [ -r config.status ] ; then
172                 cat config.status
173         fi
174
175         exit 1
176 fi
177
178 #### configure.in common parts come in here.
179 # This file is a shell script fragment that supplies the information
180 # necessary to tailor a template configure script into the configure
181 # script appropriate for this directory.  For more information, check
182 # any existing configure script.
183
184 configdirs=
185 srctrigger=readline.c
186 srcname="the readline library"
187
188 ## end of common part.
189
190 # are we rebuilding config itself?
191 if [ -n "${template}" ] ; then
192         if [ ! -r ${template} ] ; then
193                 echo '***' "Can't find template ${template}." 1>&2
194                 exit 1
195         fi
196
197 # prep the template
198         sed -e '/^#### configure.in common parts come in here.$/,/^## end of common part.$/c\
199 #### configure.in common parts come in here.\
200 ## end of common part.' \
201         -e '/^#### configure.in per-host parts come in here.$/,/^## end of per-host part.$/c\
202 #### configure.in per-host parts come in here.\
203 ## end of per-host part.' \
204         -e '/^#### configure.in per-target parts come in here.$/,/^## end of per-target part.$/c\
205 #### configure.in per-target parts come in here.\
206 ## end of per-target part.' \
207         -e '/^#### configure.in post-target parts come in here.$/,/^## end of post-target part.$/c\
208 #### configure.in post-target parts come in here.\
209 ## end of post-target part.' \
210         < ${template} > template.new
211
212         if [ -r configure.in ] ; then
213                 if [ -z "`grep '^# per\-host:' configure.in`" ] ; then
214                         echo '***' `pwd`/configure.in has no "per-host:" line. 1>&2
215                         exit 1
216                 fi
217
218                 if [ -z "`grep '^# per\-target:' configure.in`" ] ; then
219                         echo '***' `pwd`/configure.in has no "per-target:" line. 1>&2
220                         exit 1
221                 fi
222
223                 # split configure.in into common, per-host, per-target,
224                 # and post-target parts.  Post-target is optional.
225                 sed -e '/^# per\-host:/,$d' configure.in > configure.com
226                 sed -e '1,/^# per\-host:/d' -e '/^# per\-target:/,$d' configure.in > configure.hst
227                 if grep -s '^# post-target:' configure.in ; then
228                   sed -e '1,/^# per\-target:/d' -e '/^# post\-target:/,$d' configure.in > configure.tgt
229                   sed -e '1,/^# post\-target:/d' configure.in > configure.pos
230                 else
231                   sed -e '1,/^# per\-target:/d' configure.in > configure.tgt
232                   echo >configure.pos
233                 fi
234
235                 # and insert them
236                 sed -e '/^#### configure.in common parts come in here.$/  r configure.com' \
237                         -e '/^#### configure.in per\-host parts come in here.$/  r configure.hst' \
238                         -e '/^#### configure.in per\-target parts come in here.$/  r configure.tgt' \
239                         -e '/^#### configure.in post\-target parts come in here.$/  r configure.pos' \
240                         template.new > configure.new
241
242                 rm -f configure.com configure.tgt configure.hst configure.pos
243         else
244                 echo Warning: no configure.in in `pwd`
245                 cat ${template} >> configure
246         fi
247
248         chmod a+x configure.new
249         rm template.new
250 #       mv configure configure.old
251         mv configure.new configure
252
253         if [ -n "${verbose}" ] ; then
254                 echo Rebuilt configure in `pwd`
255         fi
256
257         # Now update config.sub from the template directory.
258         if echo "$template" | grep -s 'configure$' ; then
259                 cp `echo "$template" | sed s/configure$/config.sub/` ./config.sub.new
260         #       mv config.sub config.sub.old
261                 mv config.sub.new config.sub
262
263                 if [ -n "${verbose}" ] ; then
264                         echo Rebuilt config.sub in `pwd`
265                 fi
266         fi
267
268         if [ -z "${norecursion}" ] ; then
269                 # If template is relative path, make it absolute for recurring.
270                 if echo "${template}" | grep -s '^/' ; then
271                    true
272                 else
273                    template=`pwd`/${template}
274                 fi
275
276                 while [ -n "${configdirs}" ] ; do
277                         # set configdir to car of configdirs, configdirs to cdr of configdirs
278                         set ${configdirs}; configdir=$1; shift; configdirs=$*
279
280                         if [ "`echo ${configdir}.*`" != "${configdir}.*" ] ; then
281                                 targetspecificdirs=${configdir}.*
282                         else
283                                 targetspecificdirs=
284                         fi
285
286                         for i in ${configdir} ${targetspecificdirs} ; do
287                                 if [ -d $i ] ; then
288                                         if [ -r $i/configure ] ; then
289                                                 (cd $i ;
290                                                         ./configure +template=${template} ${verbose})
291                                         else
292                                                 echo Warning: No configure script in `pwd`/$i
293                                         fi
294                                 else
295                                         if [ -n "${verbose}" ] ; then
296                                           echo Warning: directory $i is missing.
297                                         fi
298                                 fi
299                         done
300                 done
301         fi
302
303         exit 0
304 fi
305
306 # some sanity checks on configure.in
307 if [ -z "${srctrigger}" ] ; then
308         echo Warning: srctrigger not set in configure.in. `pwd` not configured.
309         exit 1
310 fi
311
312 for host in ${hosts} ; do
313         # Default other arg
314         if [ -z "${targets}" -o -n "${defaulttargets}" ] ; then
315                 targets=${host}
316                 defaulttargets=true
317         fi
318
319         host_alias=${host}
320
321         result=`/bin/sh ./config.sub ${host}`
322         host_cpu=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\1/'`
323         host_vendor=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\2/'`
324         host_os=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\3/'`
325         host=${host_cpu}-${host_vendor}-${host_os}
326         host_makefile_frag=config/hmake-${host}
327
328 #### configure.in per-host parts come in here.
329
330 case "${host_os}" in
331 sysv* | irix*) host_makefile_frag=config/hmake-sysv ;;
332 esac
333
334 ## end of per-host part.
335
336         for target in ${targets} ; do
337
338                 target_alias=${target}
339                 result=`/bin/sh ./config.sub ${target}`
340                 target_cpu=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\1/'`
341                 target_vendor=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\2/'`
342                 target_os=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\3/'`
343                 target=${target_cpu}-${target_vendor}-${target_os}
344                 target_makefile_frag=config/tmake-${target}
345
346 #### configure.in per-target parts come in here.
347
348 ## end of per-target part.
349
350                 # Temporarily, we support only direct subdir builds.
351                 hostsubdir=H-${host_alias}
352                 targetsubdir=T-${target_alias}
353
354                 if [ -n "${removing}" ] ; then
355                         if [ -n "${subdirs}" ] ; then
356                                 if [ -d "${hostsubdir}" ] ; then
357                                         rm -rf ${hostsubdir}/${targetsubdir}
358
359                                         if [ -z "`(ls ${hostsubdir}) 2>&1 | grep Target- | grep -v Target-independent`" ] ; then
360                                                 rm -rf ${hostsubdir}
361                                         fi
362                                 else
363                                         echo Warning: no `pwd`/${hostsubdir} to remove.
364                                 fi
365                         else
366                                 rm -f ${Makefile} config.status ${links}
367                         fi
368                 else
369                         if [ -n "${subdirs}" ] ; then
370                                 # check for existing status before allowing forced subdirs.
371                                 if [ -f ${Makefile} ] ; then
372                                         echo '***' "${Makefile} already exists in source directory.  `pwd` not configured." 1>&2
373                                         exit 1
374                                 fi
375
376                                 if [ ! -d ${hostsubdir} ] ; then mkdir ${hostsubdir} ; fi
377                                 cd ${hostsubdir}
378
379                                 if [ ! -d ${targetsubdir} ] ; then
380                                         if [ -z "${commontargets}" ] ; then
381                                                 mkdir ${targetsubdir}
382                                         else
383                                                 if [ ! -d Target-independent ] ; then
384                                                         mkdir Target-independent
385                                                 fi
386
387                                                 ${symbolic_link} Target-independent ${targetsubdir}
388                                         fi # if target independent
389                                 fi # if no target dir yet
390
391                                 cd ${targetsubdir}
392
393                                 srcdir=../..
394                         else
395                                 # if not subdir builds, then make sure none exist.
396                                 if [ -n "`(ls .) 2>&1 | grep Host-`" ] ; then
397                                         echo '***' "Configured subdirs exist.  `pwd` not configured." 1>&2
398                                         exit 1
399                                 fi
400                         fi
401
402                         # Find the source files, if location was not specified.
403                         if [ -z "${srcdir}" ] ; then
404                                 srcdirdefaulted=1
405                                 srcdir=.
406                                 if [ -n "${srctrigger}" -a ! -r ${srctrigger} ] ; then
407                                         srcdir=..
408                                 fi
409                         fi
410
411                         if [ -n "${srctrigger}" -a ! -r ${srcdir}/${srctrigger} ] ; then
412                                 if [ -z "${srcdirdefaulted}" ] ; then
413                                         echo '***' "${progname}: Can't find ${srcname} sources in `pwd`/${srcdir}" 1>&2
414                                 else
415                                         echo '***' "${progname}: Can't find ${srcname} sources in `pwd`/. or `pwd`/.." 1>&2
416                                 fi
417
418                                 echo '***' \(At least ${srctrigger} is missing.\) 1>&2
419                                 exit 1
420                         fi
421
422                         # Set up the list of links to be made.
423                         # ${links} is the list of link names, and ${files} is the list of names to link to.
424
425                         # Make the links.
426                         while [ -n "${files}" ] ; do
427                                 # set file to car of files, files to cdr of files
428                                 set ${files}; file=$1; shift; files=$*
429                                 set ${links}; link=$1; shift; links=$*
430
431                                 if [ ! -r ${srcdir}/${file} ] ; then
432                                         echo '***' "${progname}: cannot create a link \"${link}\"," 1>&2
433                                         echo '***' "since the file \"${file}\" does not exist." 1>&2
434                                         exit 1
435                                 fi
436
437                                 ${remove} -f ${link}
438                                 rm -f config.status
439                                 # Make a symlink if possible, otherwise try a hard link
440                                 ${symbolic_link} ${srcdir}/${file} ${link} 2>/dev/null || ${hard_link} ${srcdir}/${file} ${link}
441
442                                 if [ ! -r ${link} ] ; then
443                                         echo '***' "${progname}: unable to link \"${link}\" to \"${srcdir}/${file}\"." 1>&2
444                                         exit 1
445                                 fi
446
447                                 if [ -n "${verbose}" ] ; then
448                                         echo "Linked \"${link}\" to \"${srcdir}/${file}\"."
449                                 fi
450                         done
451
452                         # Create a .gdbinit file which runs the one in srcdir
453                         # and tells GDB to look there for source files.
454
455                         case ${srcdir} in
456                         .)
457                                 ;;
458                         *)
459                                 echo "dir ." > .gdbinit
460                                 echo "dir ${srcdir}" >> .gdbinit
461                                 echo "source ${srcdir}/.gdbinit" >> .gdbinit
462                                 ;;
463                         esac
464
465                         # Install a makefile, and make it set VPATH
466                         # if necessary so that the sources are found.
467                         # Also change its value of srcdir.
468
469                 # FIXME-someday: This business of always writing to .tem and mv back
470                 # is so that I don't screw things up while developing.  Once this
471                 # template is stable, these should be optimized. xoxorich.
472
473                         # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
474                         if [ "${host}" != "${target}" ] ; then
475                                 echo "CROSS=-DCROSS_COMPILE" > ${Makefile}
476                                 echo "ALL=start.encap" >> ${Makefile}
477                         else
478                                 echo "ALL=all.internal" > ${Makefile}
479                         fi
480
481                         # set target, host, VPATH
482                         echo "host_alias = ${host_alias}" >> ${Makefile}
483                         echo "host_cpu = ${host_cpu}" >> ${Makefile}
484                         echo "host_vendor = ${host_vendor}" >> ${Makefile}
485                         echo "host_os = ${host_os}" >> ${Makefile}
486
487                         echo "target_alias = ${target_alias}" >> ${Makefile}
488                         echo "target_cpu = ${target_cpu}" >> ${Makefile}
489                         echo "target_vendor = ${target_vendor}" >> ${Makefile}
490                         echo "target_os = ${target_os}" >> ${Makefile}
491
492                         if [ -n "${subdirs}" ] ; then
493                                 echo "subdir = /${hostsubdir}/${targetsubdir}" >> ${Makefile}
494                         else
495                                 echo "subdir =" >> ${Makefile}
496                         fi
497
498                 #       echo "workdir = `pwd`" >> ${Makefile}
499                         echo "VPATH = ${srcdir}" >> ${Makefile}
500
501                         # add "Makefile.in" (or whatever it's called)
502                         cat ${srcdir}/${Makefile_in} >> ${Makefile}
503
504                         # Conditionalize the makefile for this host.
505                         if [ -f ${srcdir}/${host_makefile_frag} ] ; then
506                                 (echo "host_makefile_frag = ${srcdir}/${host_makefile_frag}" ; 
507                                         sed -e "/^####/  r ${srcdir}/${host_makefile_frag}" ${Makefile}) > Makefile.tem
508                                 mv Makefile.tem ${Makefile}
509                         fi
510
511                         # Conditionalize the makefile for this target.
512                         if [ -f ${srcdir}/${target_makefile_frag} ] ; then
513                                 (echo "target_makefile_frag = ${srcdir}/${target_makefile_frag}" ; 
514                                         sed -e "/^####/  r ${srcdir}/${target_makefile_frag}" ${Makefile}) > Makefile.tem
515                                 mv Makefile.tem ${Makefile}
516                         fi
517
518                         # set srcdir
519                         sed "s@^srcdir = \.@srcdir = ${srcdir}@" ${Makefile} > Makefile.tem
520                         mv Makefile.tem ${Makefile}
521
522                         # set destdir
523                         if [ -n "${destdir}" ] ; then
524                                 sed "s:^destdir =.*$:destdir = ${destdir}:" ${Makefile} > Makefile.tem
525                                 mv Makefile.tem ${Makefile}
526                         fi
527
528                         # reset SUBDIRS
529                         sed "s:^SUBDIRS =.*$:SUBDIRS = ${configdirs}:" ${Makefile} > Makefile.tem
530                         mv Makefile.tem ${Makefile}
531
532                         # reset NONSUBDIRS
533                         sed "s:^NONSUBDIRS =.*$:NONSUBDIRS = ${noconfigdirs}:" ${Makefile} > Makefile.tem
534                         mv Makefile.tem ${Makefile}
535
536                         using=
537                         if [ -f ${srcdir}/${host_makefile_frag} ] ; then
538                                 using=" using \"${host_makefile_frag}\""
539                         fi
540
541                         # remove any form feeds.
542                         sed -e "s/\f//" ${Makefile} > Makefile.tem
543                         mv Makefile.tem ${Makefile}
544
545                         if [ -f ${srcdir}/${target_makefile_frag} ] ; then
546                                 if [ -z "${using}" ] ; then
547                                         andusing=" using \"${target_makefile_frag}\""
548                                 else
549                                         andusing="${using} and \"${target_makefile_frag}\""
550                                 fi
551                         else
552                                 andusing=${using}
553                         fi
554
555                         if [ -n "${verbose}" -o -z "${recurring}" ] ; then
556                                 echo "Created \"${Makefile}\"" in `pwd`${andusing}.
557                         fi
558
559 #### configure.in post-target parts come in here.
560
561 ## end of post-target part.
562
563                         # describe the chosen configuration in config.status.
564                         # Make that file a shellscript which will reestablish
565                         # the same configuration.  Used in Makefiles to rebuild
566                         # Makefiles.
567
568                         echo "#!/bin/sh
569 # ${srcname} was configured as follows:
570 ${srcdir}/configure" ${arguments} `if [ -z "${norecursion}" ] ; then echo +norecursion ; else true ; fi` > config.status
571                         chmod a+x config.status
572
573                         originaldir=`pwd`
574                         cd ${srcdir}
575                 fi
576
577                 # If there are subdirectories, then recurse. 
578                 if [ -z "${norecursion}" -a -n "${configdirs}" ] ; then 
579                         for configdir in ${configdirs} ; do
580                                 if [ -n "${verbose}" ] ; then
581                                         echo Configuring ${configdir}...
582                                 fi
583
584                                 if [ -d ${configdir} ] ; then
585                                         (cd ${configdir} ;
586                                                 ./configure +recurring ${host_alias} +target=${target_alias} \
587                                                         ${verbose} ${subdirs} ${removing} +destdir=${destdir}) \
588                                                 | sed 's/^/     /'
589                                 else
590                                         if [ -n "${verbose}" ] ; then
591                                                 echo Warning: directory \"${configdir}\" is missing.
592                                         fi
593                                 fi
594                         done
595                 fi
596         done # for each target
597
598         # Now build a Makefile for this host.
599         if [ -n "${subdirs}" -a ! -n "${removing}" ] ; then
600                 cd ${hostsubdir}
601                 cat > GNUmakefile << E!O!F
602 # Makefile generated by configure for host ${host_alias}.
603
604 ALL := $(shell ls -d Target-*)
605
606 %:
607         $(foreach subdir,$(ALL),$(MAKE) -C $(subdir) \$@ &&) true
608
609 all:
610 E!O!F
611                 cd ..
612         fi
613 done # for each host
614
615 exit 0
616
617 #
618 # Local Variables:
619 # fill-column: 131
620 # End:
621 #
622
623 # end of configure