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[deliverable/binutils-gdb.git] / ld / 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 "${hosts}" = "help" ] ; then
152 (echo "Usage: configure HOST" ;
153 echo ;
154 echo "Options: [defaults in brackets]" ;
155 echo " +ansi configure w/ANSI library. [no ansi lib]" ;
156 echo " +destdir=MYDIR configure for installation into MYDIR. [/usr/local]" ;
157 echo " +subdirs configure in subdirectories. [in source directories]" ;
158 echo " +lang=LANG configure to build LANG. [gcc]" ;
159 echo " +help print this message. [normal config]" ;
160 echo " +gas configure the compilers for use with gas. [native as]" ;
161 echo " +nfp configure the compilers default to soft floating point. [hard float]" ;
162 echo " +norecursion configure this directory only. [recurse]" ;
163 echo " +rm remove this configuration. [build a configuration]" ;
164 echo " +target=TARGET configure for TARGET. [TARGET = HOST]" ;
165 echo " +template=TEM rebuild configure using TEM. [normal config]" ;
166 echo ;
167 echo "Where HOST and TARGET are something like \"vax\", \"sun3\", \"encore\", etc." ;
168 echo "Asking for more than one \"+target\" implies \"+subdirs\". Any other" ;
169 echo "options given will apply to all targets.") 1>&2
170
171 if [ -r config.status ] ; then
172 cat config.status
173 fi
174
175 exit 1
176 fi
177
178 #### configure.in common parts come in here.
179 # This file is a shell script fragment that supplies the information
180 # necessary to tailor a template configure script into the configure
181 # script appropriate for this directory. For more information, check
182 # any existing configure script.
183
184 srctrigger=ldmain.c
185 srcname="linker"
186
187 ## end of common part.
188
189 # are we rebuilding config itself?
190 if [ -n "${template}" ] ; then
191 if [ ! -r ${template} ] ; then
192 echo '***' "Can't find template ${template}." 1>&2
193 exit 1
194 fi
195
196 # prep the template
197 sed -e '/^#### configure.in common parts come in here.$/,/^## end of common part.$/c\
198 #### configure.in common parts come in here.\
199 ## end of common part.' \
200 -e '/^#### configure.in per-host parts come in here.$/,/^## end of per-host part.$/c\
201 #### configure.in per-host parts come in here.\
202 ## end of per-host part.' \
203 -e '/^#### configure.in per-target parts come in here.$/,/^## end of per-target part.$/c\
204 #### configure.in per-target parts come in here.\
205 ## end of per-target part.' \
206 -e '/^#### configure.in post-target parts come in here.$/,/^## end of post-target part.$/c\
207 #### configure.in post-target parts come in here.\
208 ## end of post-target part.' \
209 < ${template} > template.new
210
211 if [ -r configure.in ] ; then
212 if [ -z "`grep '^# per\-host:' configure.in`" ] ; then
213 echo '***' `pwd`/configure.in has no "per-host:" line. 1>&2
214 exit 1
215 fi
216
217 if [ -z "`grep '^# per\-target:' configure.in`" ] ; then
218 echo '***' `pwd`/configure.in has no "per-target:" line. 1>&2
219 exit 1
220 fi
221
222 # split configure.in into common, per-host, per-target,
223 # and post-target parts. Post-target is optional.
224 sed -e '/^# per\-host:/,$d' configure.in > configure.com
225 sed -e '1,/^# per\-host:/d' -e '/^# per\-target:/,$d' configure.in > configure.hst
226 if grep -s '^# post-target:' configure.in ; then
227 sed -e '1,/^# per\-target:/d' -e '/^# post\-target:/,$d' configure.in > configure.tgt
228 sed -e '1,/^# post\-target:/d' configure.in > configure.pos
229 else
230 sed -e '1,/^# per\-target:/d' configure.in > configure.tgt
231 echo >configure.pos
232 fi
233
234 # and insert them
235 sed -e '/^#### configure.in common parts come in here.$/ r configure.com' \
236 -e '/^#### configure.in per\-host parts come in here.$/ r configure.hst' \
237 -e '/^#### configure.in per\-target parts come in here.$/ r configure.tgt' \
238 -e '/^#### configure.in post\-target parts come in here.$/ r configure.pos' \
239 template.new > configure.new
240
241 rm -f configure.com configure.tgt configure.hst configure.pos
242 else
243 echo Warning: no configure.in in `pwd`
244 cat ${template} >> configure
245 fi
246
247 chmod a+x configure.new
248 rm template.new
249 # mv configure configure.old
250 mv configure.new configure
251
252 if [ -n "${verbose}" ] ; then
253 echo Rebuilt configure in `pwd`
254 fi
255
256 # Now update config.sub from the template directory.
257 if echo "$template" | grep -s 'configure$' ; then
258 cp `echo "$template" | sed s/configure$/config.sub/` ./config.sub.new
259 # mv config.sub config.sub.old
260 mv config.sub.new config.sub
261
262 if [ -n "${verbose}" ] ; then
263 echo Rebuilt config.sub in `pwd`
264 fi
265 fi
266
267 if [ -z "${norecursion}" ] ; then
268 # If template is relative path, make it absolute for recurring.
269 if echo "${template}" | grep -s '^/' ; then
270 true
271 else
272 template=`pwd`/${template}
273 fi
274
275 while [ -n "${configdirs}" ] ; do
276 # set configdir to car of configdirs, configdirs to cdr of configdirs
277 set ${configdirs}; configdir=$1; shift; configdirs=$*
278
279 if [ "`echo ${configdir}.*`" != "${configdir}.*" ] ; then
280 targetspecificdirs=${configdir}.*
281 else
282 targetspecificdirs=
283 fi
284
285 for i in ${configdir} ${targetspecificdirs} ; do
286 if [ -d $i ] ; then
287 if [ -r $i/configure ] ; then
288 (cd $i ;
289 ./configure +template=${template} ${verbose})
290 else
291 echo Warning: No configure script in `pwd`/$i
292 fi
293 else
294 if [ -n "${verbose}" ] ; then
295 echo Warning: directory $i is missing.
296 fi
297 fi
298 done
299 done
300 fi
301
302 exit 0
303 fi
304
305 # some sanity checks on configure.in
306 if [ -z "${srctrigger}" ] ; then
307 echo Warning: srctrigger not set in configure.in. `pwd` not configured.
308 exit 1
309 fi
310
311 for host in ${hosts} ; do
312 # Default other arg
313 if [ -z "${targets}" -o -n "${defaulttargets}" ] ; then
314 targets=${host}
315 defaulttargets=true
316 fi
317
318 host_alias=${host}
319
320 result=`/bin/sh ./config.sub ${host}`
321 host_cpu=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\1/'`
322 host_vendor=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\2/'`
323 host_os=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\3/'`
324 host=${host_cpu}-${host_vendor}-${host_os}
325 host_makefile_frag=config/hmake-${host}
326
327 #### configure.in per-host parts come in here.
328
329 if [ "${host_os}" = "posix" ] ; then
330 my_host=posix
331 else
332 case "${host_cpu}" in
333 rs6000) my_host=aix ;;
334 mips)
335 case "${host_vendor}" in
336 dec) my_host=dec3100 ;;
337 esac
338 ;;
339 m88k)
340 case "${host_vendor}" in
341 *)
342 case "${host_os}" in
343 dgux) my_host=dgux ;;
344 esac
345 ;;
346 esac
347 ;;
348
349 m68k)
350 case "${host_vendor}" in
351 hp) my_host=hp9000 ;;
352 sony) my_host=news ;;
353 sun) my_host=sun3 ;;
354 esac
355 ;;
356
357 i386)
358 case "${host_vendor}" in
359 *)
360 case "${host_os}" in
361 sysv) my_host=i386v ;;
362 esac
363 ;;
364 esac
365 ;;
366
367 sparc)
368 case "${host_vendor}" in
369 sun) my_host=sun4 ;;
370 esac
371 ;;
372
373 rtpc) my_host=rtbsd ;;
374 tahoe | vax) my_host=${host_cpu} ;;
375 esac
376 fi
377
378 if [ ! -f config/h-${my_host} ] ; then
379 echo '***' The linker do not support host ${host}
380 exit 1
381 fi
382
383 host_makefile_frag=config/h-${my_host}
384
385 ## end of per-host part.
386
387 for target in ${targets} ; do
388
389 target_alias=${target}
390 result=`/bin/sh ./config.sub ${target}`
391 target_cpu=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\1/'`
392 target_vendor=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\2/'`
393 target_os=`echo $result | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\3/'`
394 target=${target_cpu}-${target_vendor}-${target_os}
395 target_makefile_frag=config/tmake-${target}
396
397 #### configure.in per-target parts come in here.
398
399 case ${target_cpu} in
400 sparc)
401 case ${target_vendor} in
402 sun) my_target=sun4 ;;
403 esac
404 ;;
405 m88k) my_target=m88k-bcs ;;
406 a29k) my_target=coff-a29k ;;
407 m68k)
408 case ${target_vendor} in
409 sun) my_target=sun3 ;;
410 sony) my_target=news;;
411 *) echo "Unknown 68k target vendor:" ${target_vendor} ;;
412 esac
413 esac
414
415 target_makefile_frag=config/t-${my_target}
416
417 files=
418 links=
419 ## end of per-target part.
420
421 # Temporarily, we support only direct subdir builds.
422 hostsubdir=H-${host_alias}
423 targetsubdir=T-${target_alias}
424
425 if [ -n "${removing}" ] ; then
426 if [ -n "${subdirs}" ] ; then
427 if [ -d "${hostsubdir}" ] ; then
428 rm -rf ${hostsubdir}/${targetsubdir}
429
430 if [ -z "`(ls ${hostsubdir}) 2>&1 | grep Target- | grep -v Target-independent`" ] ; then
431 rm -rf ${hostsubdir}
432 fi
433 else
434 echo Warning: no `pwd`/${hostsubdir} to remove.
435 fi
436 else
437 rm -f ${Makefile} config.status ${links}
438 fi
439 else
440 if [ -n "${subdirs}" ] ; then
441 # check for existing status before allowing forced subdirs.
442 if [ -f ${Makefile} ] ; then
443 echo '***' "${Makefile} already exists in source directory. `pwd` not configured." 1>&2
444 exit 1
445 fi
446
447 if [ ! -d ${hostsubdir} ] ; then mkdir ${hostsubdir} ; fi
448 cd ${hostsubdir}
449
450 if [ ! -d ${targetsubdir} ] ; then
451 if [ -z "${commontargets}" ] ; then
452 mkdir ${targetsubdir}
453 else
454 if [ ! -d Target-independent ] ; then
455 mkdir Target-independent
456 fi
457
458 ${symbolic_link} Target-independent ${targetsubdir}
459 fi # if target independent
460 fi # if no target dir yet
461
462 cd ${targetsubdir}
463
464 srcdir=../..
465 else
466 # if not subdir builds, then make sure none exist.
467 if [ -n "`(ls .) 2>&1 | grep Host-`" ] ; then
468 echo '***' "Configured subdirs exist. `pwd` not configured." 1>&2
469 exit 1
470 fi
471 fi
472
473 # Find the source files, if location was not specified.
474 if [ -z "${srcdir}" ] ; then
475 srcdirdefaulted=1
476 srcdir=.
477 if [ -n "${srctrigger}" -a ! -r ${srctrigger} ] ; then
478 srcdir=..
479 fi
480 fi
481
482 if [ -n "${srctrigger}" -a ! -r ${srcdir}/${srctrigger} ] ; then
483 if [ -z "${srcdirdefaulted}" ] ; then
484 echo '***' "${progname}: Can't find ${srcname} sources in `pwd`/${srcdir}" 1>&2
485 else
486 echo '***' "${progname}: Can't find ${srcname} sources in `pwd`/. or `pwd`/.." 1>&2
487 fi
488
489 echo '***' \(At least ${srctrigger} is missing.\) 1>&2
490 exit 1
491 fi
492
493 # Set up the list of links to be made.
494 # ${links} is the list of link names, and ${files} is the list of names to link to.
495
496 # Make the links.
497 while [ -n "${files}" ] ; do
498 # set file to car of files, files to cdr of files
499 set ${files}; file=$1; shift; files=$*
500 set ${links}; link=$1; shift; links=$*
501
502 if [ ! -r ${srcdir}/${file} ] ; then
503 echo '***' "${progname}: cannot create a link \"${link}\"," 1>&2
504 echo '***' "since the file \"${file}\" does not exist." 1>&2
505 exit 1
506 fi
507
508 ${remove} -f ${link}
509 rm -f config.status
510 # Make a symlink if possible, otherwise try a hard link
511 ${symbolic_link} ${srcdir}/${file} ${link} 2>/dev/null || ${hard_link} ${srcdir}/${file} ${link}
512
513 if [ ! -r ${link} ] ; then
514 echo '***' "${progname}: unable to link \"${link}\" to \"${srcdir}/${file}\"." 1>&2
515 exit 1
516 fi
517
518 if [ -n "${verbose}" ] ; then
519 echo "Linked \"${link}\" to \"${srcdir}/${file}\"."
520 fi
521 done
522
523 # Create a .gdbinit file which runs the one in srcdir
524 # and tells GDB to look there for source files.
525
526 case ${srcdir} in
527 .)
528 ;;
529 *)
530 echo "dir ." > .gdbinit
531 echo "dir ${srcdir}" >> .gdbinit
532 echo "source ${srcdir}/.gdbinit" >> .gdbinit
533 ;;
534 esac
535
536 # Install a makefile, and make it set VPATH
537 # if necessary so that the sources are found.
538 # Also change its value of srcdir.
539
540 # FIXME-someday: This business of always writing to .tem and mv back
541 # is so that I don't screw things up while developing. Once this
542 # template is stable, these should be optimized. xoxorich.
543
544 # Define macro CROSS_COMPILE in compilation if this is a cross-compiler.
545 if [ "${host}" != "${target}" ] ; then
546 echo "CROSS=-DCROSS_COMPILE" > ${Makefile}
547 echo "ALL=start.encap" >> ${Makefile}
548 else
549 echo "ALL=all.internal" > ${Makefile}
550 fi
551
552 # set target, host, VPATH
553 echo "host_alias = ${host_alias}" >> ${Makefile}
554 echo "host_cpu = ${host_cpu}" >> ${Makefile}
555 echo "host_vendor = ${host_vendor}" >> ${Makefile}
556 echo "host_os = ${host_os}" >> ${Makefile}
557
558 echo "target_alias = ${target_alias}" >> ${Makefile}
559 echo "target_cpu = ${target_cpu}" >> ${Makefile}
560 echo "target_vendor = ${target_vendor}" >> ${Makefile}
561 echo "target_os = ${target_os}" >> ${Makefile}
562
563 if [ -n "${subdirs}" ] ; then
564 echo "subdir = /${hostsubdir}/${targetsubdir}" >> ${Makefile}
565 else
566 echo "subdir =" >> ${Makefile}
567 fi
568
569 # echo "workdir = `pwd`" >> ${Makefile}
570 echo "VPATH = ${srcdir}" >> ${Makefile}
571
572 # add "Makefile.in" (or whatever it's called)
573 cat ${srcdir}/${Makefile_in} >> ${Makefile}
574
575 # Conditionalize the makefile for this host.
576 if [ -f ${srcdir}/${host_makefile_frag} ] ; then
577 (echo "host_makefile_frag = ${srcdir}/${host_makefile_frag}" ;
578 sed -e "/^####/ r ${srcdir}/${host_makefile_frag}" ${Makefile}) > Makefile.tem
579 mv Makefile.tem ${Makefile}
580 fi
581
582 # Conditionalize the makefile for this target.
583 if [ -f ${srcdir}/${target_makefile_frag} ] ; then
584 (echo "target_makefile_frag = ${srcdir}/${target_makefile_frag}" ;
585 sed -e "/^####/ r ${srcdir}/${target_makefile_frag}" ${Makefile}) > Makefile.tem
586 mv Makefile.tem ${Makefile}
587 fi
588
589 # set srcdir
590 sed "s@^srcdir = \.@srcdir = ${srcdir}@" ${Makefile} > Makefile.tem
591 mv Makefile.tem ${Makefile}
592
593 # set destdir
594 if [ -n "${destdir}" ] ; then
595 sed "s:^destdir =.*$:destdir = ${destdir}:" ${Makefile} > Makefile.tem
596 mv Makefile.tem ${Makefile}
597 fi
598
599 # reset SUBDIRS
600 sed "s:^SUBDIRS =.*$:SUBDIRS = ${configdirs}:" ${Makefile} > Makefile.tem
601 mv Makefile.tem ${Makefile}
602
603 # reset NONSUBDIRS
604 sed "s:^NONSUBDIRS =.*$:NONSUBDIRS = ${noconfigdirs}:" ${Makefile} > Makefile.tem
605 mv Makefile.tem ${Makefile}
606
607 using=
608 if [ -f ${srcdir}/${host_makefile_frag} ] ; then
609 using=" using \"${host_makefile_frag}\""
610 fi
611
612 # remove any form feeds.
613 sed -e "s/\f//" ${Makefile} > Makefile.tem
614 mv Makefile.tem ${Makefile}
615
616 if [ -f ${srcdir}/${target_makefile_frag} ] ; then
617 if [ -z "${using}" ] ; then
618 andusing=" using \"${target_makefile_frag}\""
619 else
620 andusing="${using} and \"${target_makefile_frag}\""
621 fi
622 else
623 andusing=${using}
624 fi
625
626 if [ -n "${verbose}" -o -z "${recurring}" ] ; then
627 echo "Created \"${Makefile}\"" in `pwd`${andusing}.
628 fi
629
630 #### configure.in post-target parts come in here.
631
632 ## end of post-target part.
633
634 # describe the chosen configuration in config.status.
635 # Make that file a shellscript which will reestablish
636 # the same configuration. Used in Makefiles to rebuild
637 # Makefiles.
638
639 echo "#!/bin/sh
640 # ${srcname} was configured as follows:
641 ${srcdir}/configure" ${arguments} `if [ -z "${norecursion}" ] ; then echo +norecursion ; else true ; fi` > config.status
642 chmod a+x config.status
643
644 originaldir=`pwd`
645 cd ${srcdir}
646 fi
647
648 # If there are subdirectories, then recurse.
649 if [ -z "${norecursion}" -a -n "${configdirs}" ] ; then
650 for configdir in ${configdirs} ; do
651 if [ -n "${verbose}" ] ; then
652 echo Configuring ${configdir}...
653 fi
654
655 if [ -d ${configdir} ] ; then
656 (cd ${configdir} ;
657 ./configure +recurring ${host_alias} +target=${target_alias} \
658 ${verbose} ${subdirs} ${removing} +destdir=${destdir}) \
659 | sed 's/^/ /'
660 else
661 if [ -n "${verbose}" ] ; then
662 echo Warning: directory \"${configdir}\" is missing.
663 fi
664 fi
665 done
666 fi
667 done # for each target
668
669 # Now build a Makefile for this host.
670 if [ -n "${subdirs}" -a ! -n "${removing}" ] ; then
671 cd ${hostsubdir}
672 cat > GNUmakefile << E!O!F
673 # Makefile generated by configure for host ${host_alias}.
674
675 ALL := $(shell ls -d Target-*)
676
677 %:
678 $(foreach subdir,$(ALL),$(MAKE) -C $(subdir) \$@ &&) true
679
680 all:
681 E!O!F
682 cd ..
683 fi
684 done # for each host
685
686 exit 0
687
688 #
689 # Local Variables:
690 # fill-column: 131
691 # End:
692 #
693
694 # end of configure
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