1# Configure fragment invoked in the post-target section for subdirs
2# wanting multilib support.
3#
4# Copyright (C) 1995, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
5#   Free Software Foundation, Inc.
6#
7# This file is free software; you can redistribute it and/or modify
8# it under the terms of the GNU General Public License as published by
9# the Free Software Foundation; either version 2 of the License, or
10# (at your option) any later version.
11#
12# This program is distributed in the hope that it will be useful,
13# but WITHOUT ANY WARRANTY; without even the implied warranty of
14# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15# GNU General Public License for more details.
16#
17# You should have received a copy of the GNU General Public License
18# along with this program; if not, write to the Free Software
19# Foundation, Inc., 51 Franklin Street, Fifth Floor,
20# Boston, MA 02110-1301, USA.
21#
22# As a special exception to the GNU General Public License, if you
23# distribute this file as part of a program that contains a
24# configuration script generated by Autoconf, you may include it under
25# the same distribution terms that you use for the rest of that program.
26#
27# Please report bugs to <gcc-bugs@gnu.org>
28# and send patches to <gcc-patches@gnu.org>.
29
30# It is advisable to support a few --enable/--disable options to let the
31# user select which libraries s/he really wants.
32#
33# Subdirectories wishing to use multilib should put the following lines
34# in the "post-target" section of configure.in.
35#
36# if [ "${srcdir}" = "." ] ; then
37#   if [ "${with_target_subdir}" != "." ] ; then
38#     . ${with_multisrctop}../../config-ml.in
39#   else
40#     . ${with_multisrctop}../config-ml.in
41#   fi
42# else
43#   . ${srcdir}/../config-ml.in
44# fi
45#
46#
47# Things are complicated because 6 separate cases must be handled:
48# 2 (native, cross) x 3 (absolute-path, relative-not-dot, dot) = 6.
49#
50# srcdir=. is special.  It must handle make programs that don't handle VPATH.
51# To implement this, a symlink tree is built for each library and for each
52# multilib subdir.
53#
54# The build tree is layed out as
55#
56# ./
57#   newlib
58#   m68020/
59#          newlib
60#          m68881/
61#                 newlib
62#
63# The nice feature about this arrangement is that inter-library references
64# in the build tree work without having to care where you are.  Note that
65# inter-library references also work in the source tree because symlink trees
66# are built when srcdir=.
67#
68# Unfortunately, trying to access the libraries in the build tree requires
69# the user to manually choose which library to use as GCC won't be able to
70# find the right one.  This is viewed as the lesser of two evils.
71#
72# Configure variables:
73# ${with_target_subdir} = "." for native, or ${target_alias} for cross.
74# Set by top level Makefile.
75# ${with_multisrctop} = how many levels of multilibs there are in the source
76# tree.  It exists to handle the case of configuring in the source tree:
77# ${srcdir} is not constant.
78# ${with_multisubdir} = name of multilib subdirectory (eg: m68020/m68881).
79#
80# Makefile variables:
81# MULTISRCTOP = number of multilib levels in source tree (+1 if cross)
82# (FIXME: note that this is different than ${with_multisrctop}.  Check out.).
83# MULTIBUILDTOP = number of multilib levels in build tree
84# MULTIDIRS = list of multilib subdirs (eg: m68000 m68020 ...)
85# (only defined in each library's main Makefile).
86# MULTISUBDIR = installed subdirectory name with leading '/' (eg: /m68000)
87# (only defined in each multilib subdir).
88
89# FIXME: Multilib is currently disabled by default for everything other than
90# newlib.  It is up to each target to turn on multilib support for the other
91# libraries as desired.
92
93# Autoconf incoming variables:
94# srcdir, host, ac_configure_args
95#
96# We *could* figure srcdir and host out, but we'd have to do work that
97# our caller has already done to figure them out and requiring these two
98# seems reasonable.
99# Note that `host' in this case is GCC's `target'.  Target libraries are
100# configured for a particular host.
101
102Makefile=${ac_file-Makefile}
103ml_config_shell=${CONFIG_SHELL-/bin/sh}
104ml_realsrcdir=${srcdir}
105
106# Scan all the arguments and set all the ones we need.
107
108ml_verbose=--verbose
109for option in ${ac_configure_args}
110do
111  # strip single quotes surrounding individual options
112  case $option in
113  \'*\') eval option=$option ;;
114  esac
115
116  case $option in
117  --*) ;;
118  -*) option=-$option ;;
119  esac
120
121  case $option in
122  --*=*)
123	optarg=`echo $option | sed -e 's/^[^=]*=//'`
124	;;
125  esac
126
127  case $option in
128  --disable-*)
129	enableopt=`echo ${option} | sed 's:^--disable-:enable_:;s:-:_:g'`
130	eval $enableopt=no
131	;;
132  --enable-*)
133	case "$option" in
134	*=*)	;;
135	*)	optarg=yes ;;
136	esac
137	enableopt=`echo ${option} | sed 's:^--::;s:=.*$::;s:-:_:g'`
138	eval $enableopt="$optarg"
139	;;
140  --norecursion | --no-recursion)
141	ml_norecursion=yes
142	;;
143  --silent | --sil* | --quiet | --q*)
144	ml_verbose=--silent
145	;;
146  --verbose | --v | --verb*)
147	ml_verbose=--verbose
148	;;
149  --with-*)
150	case "$option" in
151	*=*)	;;
152	*)	optarg=yes ;;
153	esac
154	withopt=`echo ${option} | sed 's:^--::;s:=.*$::;s:-:_:g'`
155	eval $withopt="$optarg"
156	;;
157  --without-*)
158	withopt=`echo ${option} | sed 's:^--::;s:out::;s:-:_:g'`
159	eval $withopt=no
160	;;
161  esac
162done
163
164# Only do this if --enable-multilib.
165if [ "${enable_multilib}" = yes ]; then
166
167# Compute whether this is the library's top level directory
168# (ie: not a multilib subdirectory, and not a subdirectory like newlib/src).
169# ${with_multisubdir} tells us we're in the right branch, but we could be
170# in a subdir of that.
171# ??? The previous version could void this test by separating the process into
172# two files: one that only the library's toplevel configure.in ran (to
173# configure the multilib subdirs), and another that all configure.in's ran to
174# update the Makefile.  It seemed reasonable to collapse all multilib support
175# into one file, but it does leave us with having to perform this test.
176ml_toplevel_p=no
177if [ -z "${with_multisubdir}" ]; then
178  if [ "${srcdir}" = "." ]; then
179    # Use ${ml_realsrcdir} instead of ${srcdir} here to account for ${subdir}.
180    # ${with_target_subdir} = "." for native, otherwise target alias.
181    if [ "${with_target_subdir}" = "." ]; then
182      if [ -f ${ml_realsrcdir}/../config-ml.in ]; then
183	ml_toplevel_p=yes
184      fi
185    else
186      if [ -f ${ml_realsrcdir}/../../config-ml.in ]; then
187	ml_toplevel_p=yes
188      fi
189    fi
190  else
191    # Use ${ml_realsrcdir} instead of ${srcdir} here to account for ${subdir}.
192    if [ -f ${ml_realsrcdir}/../config-ml.in ]; then
193      ml_toplevel_p=yes
194    fi
195  fi
196fi
197
198# If this is the library's top level directory, set multidirs to the
199# multilib subdirs to support.  This lives at the top because we need
200# `multidirs' set right away.
201
202if [ "${ml_toplevel_p}" = yes ]; then
203
204multidirs=
205for i in `${CC-gcc} --print-multi-lib 2>/dev/null`; do
206  dir=`echo $i | sed -e 's/;.*$//'`
207  if [ "${dir}" = "." ]; then
208    true
209  else
210    if [ -z "${multidirs}" ]; then
211      multidirs="${dir}"
212    else
213      multidirs="${multidirs} ${dir}"
214    fi
215  fi
216done
217
218# Target libraries are configured for the host they run on, so we check
219# $host here, not $target.
220
221case "${host}" in
222arc-*-elf*)
223	if [ x$enable_biendian != xyes ]
224	then
225	  old_multidirs=${multidirs}
226	  multidirs=""
227	  for x in ${old_multidirs}; do
228	    case "${x}" in
229	      *be*) : ;;
230	      *) multidirs="${multidirs} ${x}" ;;
231	    esac
232	  done
233	fi
234	;;
235arm-*-*)
236	if [ x"$enable_fpu" = xno ]
237	then
238	  old_multidirs=${multidirs}
239	  multidirs=""
240	  for x in ${old_multidirs}; do
241	    case "${x}" in
242	      *fpu*) : ;;
243	      *) multidirs="${multidirs} ${x}" ;;
244	    esac
245	  done
246	fi
247	if [ x"$enable_26bit" = xno ]
248	then
249	  old_multidirs=${multidirs}
250	  multidirs=""
251	  for x in ${old_multidirs}; do
252	    case "${x}" in
253	      *26bit*) : ;;
254	      *) multidirs="${multidirs} ${x}" ;;
255	    esac
256	  done
257	fi
258	if [ x"$enable_underscore" = xno ]
259	then
260	  old_multidirs=${multidirs}
261	  multidirs=""
262	  for x in ${old_multidirs}; do
263	    case "${x}" in
264	      *under*) : ;;
265	      *) multidirs="${multidirs} ${x}" ;;
266	    esac
267	  done
268	fi
269	if [ x"$enable_interwork" = xno ]
270	then
271	  old_multidirs=${multidirs}
272	  multidirs=""
273	  for x in ${old_multidirs}; do
274	    case "${x}" in
275	      *interwork*) : ;;
276	      *) multidirs="${multidirs} ${x}" ;;
277	    esac
278	  done
279	fi
280	if [ x$enable_biendian = xno ]
281	then
282	  old_multidirs="${multidirs}"
283	  multidirs=""
284	  for x in ${old_multidirs}; do
285	    case "$x" in
286	      *le* ) : ;;
287	      *be* ) : ;;
288	      *) multidirs="${multidirs} ${x}" ;;
289	    esac
290	  done
291	fi
292	if [ x"$enable_nofmult" = xno ]
293	then
294	  old_multidirs="${multidirs}"
295	  multidirs=""
296	  for x in ${old_multidirs}; do
297	    case "$x" in
298	      *nofmult* ) : ;;
299	      *) multidirs="${multidirs} ${x}" ;;
300	    esac
301	  done
302	fi
303	;;
304m68*-*-*)
305	if [ x$enable_softfloat = xno ]
306	then
307	  old_multidirs="${multidirs}"
308	  multidirs=""
309	  for x in ${old_multidirs}; do
310	    case "$x" in
311	      *soft-float* ) : ;;
312	      *) multidirs="${multidirs} ${x}" ;;
313	    esac
314	  done
315	fi
316	if [ x$enable_m68881 = xno ]
317	then
318	  old_multidirs="${multidirs}"
319	  multidirs=""
320	  for x in ${old_multidirs}; do
321	    case "$x" in
322	      *m68881* ) : ;;
323	      *) multidirs="${multidirs} ${x}" ;;
324	    esac
325	  done
326	fi
327	if [ x$enable_m68000 = xno ]
328	then
329	  old_multidirs="${multidirs}"
330	  multidirs=""
331	  for x in ${old_multidirs}; do
332	    case "$x" in
333	      *m68000* ) : ;;
334	      *) multidirs="${multidirs} ${x}" ;;
335	    esac
336	  done
337	fi
338	if [ x$enable_m68020 = xno ]
339	then
340	  old_multidirs="${multidirs}"
341	  multidirs=""
342	  for x in ${old_multidirs}; do
343	    case "$x" in
344	      *m68020* ) : ;;
345	      *) multidirs="${multidirs} ${x}" ;;
346	    esac
347	  done
348	fi
349	;;
350mips*-*-*)
351	if [ x$enable_single_float = xno ]
352	then
353	  old_multidirs="${multidirs}"
354	  multidirs=""
355	  for x in ${old_multidirs}; do
356	    case "$x" in
357	      *single* ) : ;;
358	      *) multidirs="${multidirs} ${x}" ;;
359	    esac
360	  done
361	fi
362	if [ x$enable_biendian = xno ]
363	then
364	  old_multidirs="${multidirs}"
365	  multidirs=""
366	  for x in ${old_multidirs}; do
367	    case "$x" in
368	      *el* ) : ;;
369	      *eb* ) : ;;
370	      *) multidirs="${multidirs} ${x}" ;;
371	    esac
372	  done
373	fi
374	if [ x$enable_softfloat = xno ]
375	then
376	  old_multidirs="${multidirs}"
377	  multidirs=""
378	  for x in ${old_multidirs}; do
379	    case "$x" in
380	      *soft-float* ) : ;;
381	      *) multidirs="${multidirs} ${x}" ;;
382	    esac
383	  done
384	fi
385	case " $multidirs " in
386	*" mabi=64 "*)
387	  # We will not be able to create libraries with -mabi=64 if
388	  # we cannot even link a trivial program.  It usually
389	  # indicates the 64bit libraries are missing.
390	  if echo 'main() {}' > conftest.c &&
391	     ${CC-gcc} -mabi=64 conftest.c -o conftest; then
392	    :
393	  else
394	    echo Could not link program with -mabi=64, disabling it.
395	    old_multidirs="${multidirs}"
396	    multidirs=""
397	    for x in ${old_multidirs}; do
398	      case "$x" in
399	      *mabi=64* ) : ;;
400	      *) multidirs="${multidirs} ${x}" ;;
401	      esac
402	    done
403	  fi
404	  rm -f conftest.c conftest
405	  ;;
406	esac
407	;;
408powerpc*-*-* | rs6000*-*-*)
409	if [ x$enable_aix64 = xno ]
410	then
411	  old_multidirs="${multidirs}"
412	  multidirs=""
413	  for x in ${old_multidirs}; do
414	    case "$x" in
415	      *ppc64* ) : ;;
416	      *) multidirs="${multidirs} ${x}" ;;
417	    esac
418	  done
419	fi
420	if [ x$enable_pthread = xno ]
421	then
422	  old_multidirs="${multidirs}"
423	  multidirs=""
424	  for x in ${old_multidirs}; do
425	    case "$x" in
426	      *pthread* ) : ;;
427	      *) multidirs="${multidirs} ${x}" ;;
428	    esac
429	  done
430	fi
431	if [ x$enable_softfloat = xno ]
432	then
433	  old_multidirs="${multidirs}"
434	  multidirs=""
435	  for x in ${old_multidirs}; do
436	    case "$x" in
437	      *soft-float* ) : ;;
438	      *) multidirs="${multidirs} ${x}" ;;
439	    esac
440	  done
441	fi
442	if [ x$enable_powercpu = xno ]
443	then
444	  old_multidirs="${multidirs}"
445	  multidirs=""
446	  for x in ${old_multidirs}; do
447	    case "$x" in
448	      power | */power | */power/* ) : ;;
449	      *) multidirs="${multidirs} ${x}" ;;
450	    esac
451	  done
452	fi
453	if [ x$enable_powerpccpu = xno ]
454	then
455	  old_multidirs="${multidirs}"
456	  multidirs=""
457	  for x in ${old_multidirs}; do
458	    case "$x" in
459	      *powerpc* ) : ;;
460	      *) multidirs="${multidirs} ${x}" ;;
461	    esac
462	  done
463	fi
464	if [ x$enable_powerpcos = xno ]
465	then
466	  old_multidirs="${multidirs}"
467	  multidirs=""
468	  for x in ${old_multidirs}; do
469	    case "$x" in
470	      *mcall-linux* | *mcall-solaris* ) : ;;
471	      *) multidirs="${multidirs} ${x}" ;;
472	    esac
473	  done
474	fi
475	if [ x$enable_biendian = xno ]
476	then
477	  old_multidirs="${multidirs}"
478	  multidirs=""
479	  for x in ${old_multidirs}; do
480	    case "$x" in
481	      *mlittle* | *mbig* ) : ;;
482	      *) multidirs="${multidirs} ${x}" ;;
483	    esac
484	  done
485	fi
486	if [ x$enable_sysv = xno ]
487	then
488	  old_multidirs="${multidirs}"
489	  multidirs=""
490	  for x in ${old_multidirs}; do
491	    case "$x" in
492	      *mcall-sysv* ) : ;;
493	      *) multidirs="${multidirs} ${x}" ;;
494	    esac
495	  done
496	fi
497	;;
498sparc*-*-*)
499	case " $multidirs " in
500	*" m64 "*)
501	  # We will not be able to create libraries with -m64 if
502	  # we cannot even link a trivial program.  It usually
503	  # indicates the 64bit libraries are missing.
504	  if echo 'main() {}' > conftest.c &&
505	     ${CC-gcc} -m64 conftest.c -o conftest; then
506	    :
507	  else
508	    echo Could not link program with -m64, disabling it.
509	    old_multidirs="${multidirs}"
510	    multidirs=""
511	    for x in ${old_multidirs}; do
512	      case "$x" in
513	      *m64* ) : ;;
514	      *) multidirs="${multidirs} ${x}" ;;
515	      esac
516	    done
517	  fi
518	  rm -f conftest.c conftest
519	  ;;
520	esac
521	;;
522esac
523
524# Remove extraneous blanks from multidirs.
525# Tests like `if [ -n "$multidirs" ]' require it.
526multidirs=`echo "$multidirs" | sed -e 's/^[ ][ ]*//' -e 's/[ ][ ]*$//' -e 's/[ ][ ]*/ /g'`
527
528# Add code to library's top level makefile to handle building the multilib
529# subdirs.
530
531cat > Multi.tem <<\EOF
532
533PWD_COMMAND=$${PWDCMD-pwd}
534
535# FIXME: There should be an @-sign in front of the `if'.
536# Leave out until this is tested a bit more.
537multi-do:
538	if [ -z "$(MULTIDIRS)" ]; then \
539	  true; \
540	else \
541	  rootpre=`${PWD_COMMAND}`/; export rootpre; \
542	  srcrootpre=`cd $(srcdir); ${PWD_COMMAND}`/; export srcrootpre; \
543	  lib=`echo $${rootpre} | sed -e 's,^.*/\([^/][^/]*\)/$$,\1,'`; \
544	  compiler="$(CC)"; \
545	  for i in `$${compiler} --print-multi-lib 2>/dev/null`; do \
546	    dir=`echo $$i | sed -e 's/;.*$$//'`; \
547	    if [ "$${dir}" = "." ]; then \
548	      true; \
549	    else \
550	      if [ -d ../$${dir}/$${lib} ]; then \
551		flags=`echo $$i | sed -e 's/^[^;]*;//' -e 's/@/ -/g'`; \
552		if (cd ../$${dir}/$${lib}; $(MAKE) $(FLAGS_TO_PASS) \
553				CFLAGS="$(CFLAGS) $${flags}" \
554				CCASFLAGS="$(CCASFLAGS) $${flags}" \
555				FCFLAGS="$(FCFLAGS) $${flags}" \
556				FFLAGS="$(FFLAGS) $${flags}" \
557				ADAFLAGS="$(ADAFLAGS) $${flags}" \
558				prefix="$(prefix)" \
559				exec_prefix="$(exec_prefix)" \
560				GCJFLAGS="$(GCJFLAGS) $${flags}" \
561				CXXFLAGS="$(CXXFLAGS) $${flags}" \
562				LIBCFLAGS="$(LIBCFLAGS) $${flags}" \
563				LIBCXXFLAGS="$(LIBCXXFLAGS) $${flags}" \
564				LDFLAGS="$(LDFLAGS) $${flags}" \
565				MULTIFLAGS="$${flags}" \
566				DESTDIR="$(DESTDIR)" \
567				INSTALL="$(INSTALL)" \
568				INSTALL_DATA="$(INSTALL_DATA)" \
569				INSTALL_PROGRAM="$(INSTALL_PROGRAM)" \
570				INSTALL_SCRIPT="$(INSTALL_SCRIPT)" \
571				$(DO)); then \
572		  true; \
573		else \
574		  exit 1; \
575		fi; \
576	      else true; \
577	      fi; \
578	    fi; \
579	  done; \
580	fi
581
582# FIXME: There should be an @-sign in front of the `if'.
583# Leave out until this is tested a bit more.
584multi-clean:
585	if [ -z "$(MULTIDIRS)" ]; then \
586	  true; \
587	else \
588	  lib=`${PWD_COMMAND} | sed -e 's,^.*/\([^/][^/]*\)$$,\1,'`; \
589	  for dir in Makefile $(MULTIDIRS); do \
590	    if [ -f ../$${dir}/$${lib}/Makefile ]; then \
591	      if (cd ../$${dir}/$${lib}; $(MAKE) $(FLAGS_TO_PASS) $(DO)); \
592	      then true; \
593	      else exit 1; \
594	      fi; \
595	    else true; \
596	    fi; \
597	  done; \
598	fi
599EOF
600
601cat ${Makefile} Multi.tem > Makefile.tem
602rm -f ${Makefile} Multi.tem
603mv Makefile.tem ${Makefile}
604
605fi # ${ml_toplevel_p} = yes
606
607if [ "${ml_verbose}" = --verbose ]; then
608  echo "Adding multilib support to Makefile in ${ml_realsrcdir}"
609  if [ "${ml_toplevel_p}" = yes ]; then
610    echo "multidirs=${multidirs}"
611  fi
612  echo "with_multisubdir=${with_multisubdir}"
613fi
614
615if [ "${srcdir}" = "." ]; then
616  if [ "${with_target_subdir}" != "." ]; then
617    ml_srcdotdot="../"
618  else
619    ml_srcdotdot=""
620  fi
621else
622  ml_srcdotdot=""
623fi
624
625if [ -z "${with_multisubdir}" ]; then
626  ml_subdir=
627  ml_builddotdot=
628  : # ml_srcdotdot= # already set
629else
630  ml_subdir="/${with_multisubdir}"
631  # The '[^/][^/]*' appears that way to work around a SunOS sed bug.
632  ml_builddotdot=`echo ${with_multisubdir} | sed -e 's:[^/][^/]*:..:g'`/
633  if [ "$srcdir" = "." ]; then
634    ml_srcdotdot=${ml_srcdotdot}${ml_builddotdot}
635  else
636    : # ml_srcdotdot= # already set
637  fi
638fi
639
640if [ "${ml_toplevel_p}" = yes ]; then
641  ml_do='$(MAKE)'
642  ml_clean='$(MAKE)'
643else
644  ml_do=true
645  ml_clean=true
646fi
647
648# TOP is used by newlib and should not be used elsewhere for this purpose.
649# MULTI{SRC,BUILD}TOP are the proper ones to use.  MULTISRCTOP is empty
650# when srcdir != builddir.  MULTIBUILDTOP is always some number of ../'s.
651# FIXME: newlib needs to be updated to use MULTI{SRC,BUILD}TOP so we can
652# delete TOP.  Newlib may wish to continue to use TOP for its own purposes
653# of course.
654# MULTIDIRS is non-empty for the cpu top level Makefile (eg: newlib/Makefile)
655# and lists the subdirectories to recurse into.
656# MULTISUBDIR is non-empty in each cpu subdirectory's Makefile
657# (eg: newlib/h8300h/Makefile) and is the installed subdirectory name with
658# a leading '/'.
659# MULTIDO is used for targets like all, install, and check where
660# $(FLAGS_TO_PASS) augmented with the subdir's compiler option is needed.
661# MULTICLEAN is used for the *clean targets.
662#
663# ??? It is possible to merge MULTIDO and MULTICLEAN into one.  They are
664# currently kept separate because we don't want the *clean targets to require
665# the existence of the compiler (which MULTIDO currently requires) and
666# therefore we'd have to record the directory options as well as names
667# (currently we just record the names and use --print-multi-lib to get the
668# options).
669
670sed -e "s:^TOP[ 	]*=[ 	]*\([./]*\)[ 	]*$:TOP = ${ml_builddotdot}\1:" \
671    -e "s:^MULTISRCTOP[ 	]*=.*$:MULTISRCTOP = ${ml_srcdotdot}:" \
672    -e "s:^MULTIBUILDTOP[ 	]*=.*$:MULTIBUILDTOP = ${ml_builddotdot}:" \
673    -e "s:^MULTIDIRS[ 	]*=.*$:MULTIDIRS = ${multidirs}:" \
674    -e "s:^MULTISUBDIR[ 	]*=.*$:MULTISUBDIR = ${ml_subdir}:" \
675    -e "s:^MULTIDO[ 	]*=.*$:MULTIDO = $ml_do:" \
676    -e "s:^MULTICLEAN[ 	]*=.*$:MULTICLEAN = $ml_clean:" \
677	${Makefile} > Makefile.tem
678rm -f ${Makefile}
679mv Makefile.tem ${Makefile}
680
681# If this is the library's top level, configure each multilib subdir.
682# This is done at the end because this is the loop that runs configure
683# in each multilib subdir and it seemed reasonable to finish updating the
684# Makefile before going on to configure the subdirs.
685
686if [ "${ml_toplevel_p}" = yes ]; then
687
688# We must freshly configure each subdirectory.  This bit of code is
689# actually partially stolen from the main configure script.  FIXME.
690
691if [ -n "${multidirs}" ] && [ -z "${ml_norecursion}" ]; then
692
693  if [ "${ml_verbose}" = --verbose ]; then
694    echo "Running configure in multilib subdirs ${multidirs}"
695    echo "pwd: `${PWDCMD-pwd}`"
696  fi
697
698  ml_origdir=`${PWDCMD-pwd}`
699  ml_libdir=`echo $ml_origdir | sed -e 's,^.*/,,'`
700  # cd to top-level-build-dir/${with_target_subdir}
701  cd ..
702
703  for ml_dir in ${multidirs}; do
704
705    if [ "${ml_verbose}" = --verbose ]; then
706      echo "Running configure in multilib subdir ${ml_dir}"
707      echo "pwd: `${PWDCMD-pwd}`"
708    fi
709
710    if [ -d ${ml_dir} ]; then true; else
711      # ``mkdir -p ${ml_dir}'' See also mkinstalldirs.
712      pathcomp=""
713      for d in `echo ":${ml_dir}" | sed -ne 's/^:\//#/;s/^://;s/\// /g;s/^#/\//;p'`; do
714        pathcomp="$pathcomp$d"
715        case "$pathcomp" in
716          -* ) pathcomp=./$pathcomp ;;
717        esac
718        if test ! -d "$pathcomp"; then
719           echo "mkdir $pathcomp" 1>&2
720           mkdir "$pathcomp" > /dev/null 2>&1 || lasterr=$?
721        fi
722        if test ! -d "$pathcomp"; then
723	   exit $lasterr
724        fi
725        pathcomp="$pathcomp/"
726      done
727    fi
728    if [ -d ${ml_dir}/${ml_libdir} ]; then true; else mkdir ${ml_dir}/${ml_libdir}; fi
729
730    # Eg: if ${ml_dir} = m68000/m68881, dotdot = ../../
731    dotdot=../`echo ${ml_dir} | sed -e 's|[^/]||g' -e 's|/|../|g'`
732
733    case ${srcdir} in
734    ".")
735      echo Building symlink tree in `${PWDCMD-pwd}`/${ml_dir}/${ml_libdir}
736      if [ "${with_target_subdir}" != "." ]; then
737	ml_unsubdir="../"
738      else
739	ml_unsubdir=""
740      fi
741      (cd ${ml_dir}/${ml_libdir};
742       ../${dotdot}${ml_unsubdir}symlink-tree ../${dotdot}${ml_unsubdir}${ml_libdir} "")
743      if [ -f ${ml_dir}/${ml_libdir}/Makefile ]; then
744	if [ x"${MAKE}" = x ]; then
745	  (cd ${ml_dir}/${ml_libdir}; make distclean)
746	else
747	  (cd ${ml_dir}/${ml_libdir}; ${MAKE} distclean)
748	fi
749      fi
750      ml_newsrcdir="."
751      ml_srcdiroption=
752      multisrctop=${dotdot}
753      ;;
754    *)
755      case "${srcdir}" in
756      /* | [A-Za-z]:[\\/]* ) # absolute path
757        ml_newsrcdir=${srcdir}
758        ;;
759      *) # otherwise relative
760        ml_newsrcdir=${dotdot}${srcdir}
761        ;;
762      esac
763      ml_srcdiroption="-srcdir=${ml_newsrcdir}"
764      multisrctop=
765      ;;
766    esac
767
768    case "${progname}" in
769    /* | [A-Za-z]:[\\/]* )     ml_recprog=${progname} ;;
770    *)      ml_recprog=${dotdot}${progname} ;;
771    esac
772
773    # FIXME: POPDIR=${PWD=`pwd`} doesn't work here.
774    ML_POPDIR=`${PWDCMD-pwd}`
775    cd ${ml_dir}/${ml_libdir}
776
777    if [ -f ${ml_newsrcdir}/configure ]; then
778      ml_recprog="${ml_newsrcdir}/configure"
779    fi
780
781    # find compiler flag corresponding to ${ml_dir}
782    for i in `${CC-gcc} --print-multi-lib 2>/dev/null`; do
783      dir=`echo $i | sed -e 's/;.*$//'`
784      if [ "${dir}" = "${ml_dir}" ]; then
785        flags=`echo $i | sed -e 's/^[^;]*;//' -e 's/@/ -/g'`
786        break
787      fi
788    done
789    ml_config_env='CC="${CC_}$flags" CXX="${CXX_}$flags" F77="${F77_}$flags" GCJ="${GCJ_}$flags" GFORTRAN="${GFORTRAN_}$flags"'
790
791    if [ "${with_target_subdir}" = "." ]; then
792	CC_=$CC' '
793	CXX_=$CXX' '
794	F77_=$F77' '
795	GCJ_=$GCJ' '
796	GFORTRAN_=$GFORTRAN' '
797    else
798	# Create a regular expression that matches any string as long
799	# as ML_POPDIR.
800	popdir_rx=`echo ${ML_POPDIR} | sed 's,.,.,g'`
801	CC_=
802	for arg in ${CC}; do
803	  case $arg in
804	  -[BIL]"${ML_POPDIR}"/*)
805	    CC_="${CC_}"`echo "X${arg}" | sed -n "s/X\\(-[BIL]${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X-[BIL]${popdir_rx}\\(.*\\)/\1/p"`' ' ;;
806	  "${ML_POPDIR}"/*)
807	    CC_="${CC_}"`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
808	  *)
809	    CC_="${CC_}${arg} " ;;
810	  esac
811	done
812
813	CXX_=
814	for arg in ${CXX}; do
815	  case $arg in
816	  -[BIL]"${ML_POPDIR}"/*)
817	    CXX_="${CXX_}"`echo "X${arg}" | sed -n "s/X\\(-[BIL]${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X-[BIL]${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
818	  "${ML_POPDIR}"/*)
819	    CXX_="${CXX_}"`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
820	  *)
821	    CXX_="${CXX_}${arg} " ;;
822	  esac
823	done
824
825	F77_=
826	for arg in ${F77}; do
827	  case $arg in
828	  -[BIL]"${ML_POPDIR}"/*)
829	    F77_="${F77_}"`echo "X${arg}" | sed -n "s/X\\(-[BIL]${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X-[BIL]${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
830	  "${ML_POPDIR}"/*)
831	    F77_="${F77_}"`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
832	  *)
833	    F77_="${F77_}${arg} " ;;
834	  esac
835	done
836
837	GCJ_=
838	for arg in ${GCJ}; do
839	  case $arg in
840	  -[BIL]"${ML_POPDIR}"/*)
841	    GCJ_="${GCJ_}"`echo "X${arg}" | sed -n "s/X\\(-[BIL]${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X-[BIL]${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
842	  "${ML_POPDIR}"/*)
843	    GCJ_="${GCJ_}"`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
844	  *)
845	    GCJ_="${GCJ_}${arg} " ;;
846	  esac
847	done
848
849	GFORTRAN_=
850	for arg in ${GFORTRAN}; do
851	  case $arg in
852	  -[BIL]"${ML_POPDIR}"/*)
853	    GFORTRAN_="${GFORTRAN_}"`echo "X${arg}" | sed -n "s/X\\(-[BIL]${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X-[BIL]${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
854	  "${ML_POPDIR}"/*)
855	    GFORTRAN_="${GFORTRAN_}"`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
856	  *)
857	    GFORTRAN_="${GFORTRAN_}${arg} " ;;
858	  esac
859	done
860
861	if test "x${LD_LIBRARY_PATH+set}" = xset; then
862	  LD_LIBRARY_PATH_=
863	  for arg in `echo "$LD_LIBRARY_PATH" | tr ':' ' '`; do
864	    case "$arg" in
865	    "${ML_POPDIR}"/*)
866	      arg=`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`
867	      ;;
868	    esac
869	    if test "x$LD_LIBRARY_PATH_" != x; then
870	      LD_LIBRARY_PATH_=$LD_LIBRARY_PATH_:$arg
871	    else
872	      LD_LIBRARY_PATH_=$arg
873	    fi
874          done
875	  ml_config_env="$ml_config_env LD_LIBRARY_PATH=$LD_LIBRARY_PATH_"
876	fi
877
878	if test "x${SHLIB_PATH+set}" = xset; then
879	  SHLIB_PATH_=
880	  for arg in `echo "$SHLIB_PATH" | tr ':' ' '`; do
881	    case "$arg" in
882	    "${ML_POPDIR}"/*)
883	      arg=`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`
884	      ;;
885	    esac
886	    if test "x$SHLIB_PATH_" != x; then
887	      SHLIB_PATH_=$SHLIB_PATH_:$arg
888	    else
889	      SHLIB_PATH_=$arg
890	    fi
891          done
892	  ml_config_env="$ml_config_env SHLIB_PATH=$SHLIB_PATH_"
893	fi
894    fi
895
896    if eval ${ml_config_env} ${ml_config_shell} ${ml_recprog} \
897	--with-multisubdir=${ml_dir} --with-multisrctop=${multisrctop} \
898	${ac_configure_args} ${ml_config_env} ${ml_srcdiroption} ; then
899      true
900    else
901      exit 1
902    fi
903
904    cd ${ML_POPDIR}
905
906  done
907
908  cd ${ml_origdir}
909fi
910
911fi # ${ml_toplevel_p} = yes
912fi # ${enable_multilib} = yes
913