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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