source: trunk/libs/newlib/src/config-ml.in @ 612

Last change on this file since 612 was 444, checked in by satin@…, 6 years ago

add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc
File size: 25.1 KB
RevLine 
[444]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# 2005, 2006, 2007, 2008, 2010, 2011, 2014 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.ac.
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
108scan_arguments ()
109{
110  ml_verbose=--verbose
111  for option
112  do
113    # Strip single quotes surrounding individual options, that is, remove one
114    # level of shell quoting for these.
115    case $option in
116      \'*\') eval option=$option ;;
117    esac
118
119    case $option in
120      --*) ;;
121      -*) option=-$option ;;
122    esac
123
124    case $option in
125      --*=*)
126        optarg=`echo $option | sed -e 's/^[^=]*=//'`
127        ;;
128    esac
129
130    case $option in
131      --disable-*)
132        enableopt=`echo ${option} | sed 's:^--disable-:enable_:;s:-:_:g'`
133        eval $enableopt=no
134        ;;
135      --enable-*)
136        case "$option" in
137        *=*)    ;;
138        *)      optarg=yes ;;
139        esac
140        enableopt=`echo ${option} | sed 's:^--::;s:=.*$::;s:-:_:g'`
141        # enable_shared and enable_static are handled by configure.
142        # Don't undo its work.
143        case $enableopt in
144        enable_shared | enable_static) ;;
145        *) eval $enableopt='$optarg' ;;
146        esac
147        ;;
148      --norecursion | --no-recursion)
149        ml_norecursion=yes
150        ;;
151      --silent | --sil* | --quiet | --q*)
152        ml_verbose=--silent
153        ;;
154      --verbose | --v | --verb*)
155        ml_verbose=--verbose
156        ;;
157      --with-*)
158        case "$option" in
159        *=*)    ;;
160        *)      optarg=yes ;;
161        esac
162        withopt=`echo ${option} | sed 's:^--::;s:=.*$::;s:-:_:g'`
163        eval $withopt='$optarg'
164        ;;
165      --without-*)
166        withopt=`echo ${option} | sed 's:^--::;s:out::;s:-:_:g'`
167        eval $withopt=no
168        ;;
169    esac
170  done
171}
172# Use eval to properly handle configure arguments such as
173# --enable-foo='--enable-a=1 --enable-b=2 --enable-c=3'.
174eval scan_arguments "${ac_configure_args}"
175unset scan_arguments
176
177# Only do this if --enable-multilib.
178if [ "${enable_multilib}" = yes ]; then
179
180# Compute whether this is the library's top level directory
181# (ie: not a multilib subdirectory, and not a subdirectory like newlib/src).
182# ${with_multisubdir} tells us we're in the right branch, but we could be
183# in a subdir of that.
184# ??? The previous version could void this test by separating the process into
185# two files: one that only the library's toplevel configure.ac ran (to
186# configure the multilib subdirs), and another that all configure.ac's ran to
187# update the Makefile.  It seemed reasonable to collapse all multilib support
188# into one file, but it does leave us with having to perform this test.
189ml_toplevel_p=no
190if [ -z "${with_multisubdir}" ]; then
191  if [ "${srcdir}" = "." ]; then
192    # Use ${ml_realsrcdir} instead of ${srcdir} here to account for ${subdir}.
193    # ${with_target_subdir} = "." for native, otherwise target alias.
194    if [ "${with_target_subdir}" = "." ]; then
195      if [ -f ${ml_realsrcdir}/../config-ml.in ]; then
196        ml_toplevel_p=yes
197      fi
198    else
199      if [ -f ${ml_realsrcdir}/../../config-ml.in ]; then
200        ml_toplevel_p=yes
201      fi
202    fi
203  else
204    # Use ${ml_realsrcdir} instead of ${srcdir} here to account for ${subdir}.
205    if [ -f ${ml_realsrcdir}/../config-ml.in ]; then
206      ml_toplevel_p=yes
207    fi
208  fi
209fi
210
211# If this is the library's top level directory, set multidirs to the
212# multilib subdirs to support.  This lives at the top because we need
213# `multidirs' set right away.
214
215if [ "${ml_toplevel_p}" = yes ]; then
216
217multidirs=
218for i in `${CC-gcc} --print-multi-lib 2>/dev/null`; do
219  dir=`echo $i | sed -e 's/;.*$//'`
220  if [ "${dir}" = "." ]; then
221    true
222  else
223    if [ -z "${multidirs}" ]; then
224      multidirs="${dir}"
225    else
226      multidirs="${multidirs} ${dir}"
227    fi
228  fi
229done
230
231# Target libraries are configured for the host they run on, so we check
232# $host here, not $target.
233
234case "${host}" in
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} ${x}" ;;
382            esac
383          done
384        fi
385        ;;
386powerpc*-*-* | rs6000*-*-*)
387        if [ x$enable_aix64 = xno ]
388        then
389          old_multidirs="${multidirs}"
390          multidirs=""
391          for x in ${old_multidirs}; do
392            case "$x" in
393              *ppc64* ) : ;;
394              *) multidirs="${multidirs} ${x}" ;;
395            esac
396          done
397        fi
398        if [ x$enable_pthread = xno ]
399        then
400          old_multidirs="${multidirs}"
401          multidirs=""
402          for x in ${old_multidirs}; do
403            case "$x" in
404              *pthread* ) : ;;
405              *) multidirs="${multidirs} ${x}" ;;
406            esac
407          done
408        fi
409        if [ x$enable_softfloat = xno ]
410        then
411          old_multidirs="${multidirs}"
412          multidirs=""
413          for x in ${old_multidirs}; do
414            case "$x" in
415              *soft-float* ) : ;;
416              *) multidirs="${multidirs} ${x}" ;;
417            esac
418          done
419        fi
420        if [ x$enable_powercpu = xno ]
421        then
422          old_multidirs="${multidirs}"
423          multidirs=""
424          for x in ${old_multidirs}; do
425            case "$x" in
426              power | */power | */power/* ) : ;;
427              *) multidirs="${multidirs} ${x}" ;;
428            esac
429          done
430        fi
431        if [ x$enable_powerpccpu = xno ]
432        then
433          old_multidirs="${multidirs}"
434          multidirs=""
435          for x in ${old_multidirs}; do
436            case "$x" in
437              *powerpc* ) : ;;
438              *) multidirs="${multidirs} ${x}" ;;
439            esac
440          done
441        fi
442        if [ x$enable_powerpcos = xno ]
443        then
444          old_multidirs="${multidirs}"
445          multidirs=""
446          for x in ${old_multidirs}; do
447            case "$x" in
448              *mcall-linux* | *mcall-solaris* ) : ;;
449              *) multidirs="${multidirs} ${x}" ;;
450            esac
451          done
452        fi
453        if [ x$enable_biendian = xno ]
454        then
455          old_multidirs="${multidirs}"
456          multidirs=""
457          for x in ${old_multidirs}; do
458            case "$x" in
459              *mlittle* | *mbig* ) : ;;
460              *) multidirs="${multidirs} ${x}" ;;
461            esac
462          done
463        fi
464        if [ x$enable_sysv = xno ]
465        then
466          old_multidirs="${multidirs}"
467          multidirs=""
468          for x in ${old_multidirs}; do
469            case "$x" in
470              *mcall-sysv* ) : ;;
471              *) multidirs="${multidirs} ${x}" ;;
472            esac
473          done
474        fi
475        ;;
476esac
477
478# Remove extraneous blanks from multidirs.
479# Tests like `if [ -n "$multidirs" ]' require it.
480multidirs=`echo "$multidirs" | sed -e 's/^[ ][ ]*//' -e 's/[ ][ ]*$//' -e 's/[ ][ ]*/ /g'`
481
482# Add code to library's top level makefile to handle building the multilib
483# subdirs.
484
485cat > Multi.tem <<\EOF
486
487PWD_COMMAND=$${PWDCMD-pwd}
488
489# FIXME: There should be an @-sign in front of the `if'.
490# Leave out until this is tested a bit more.
491multi-do:
492        if [ -z "$(MULTIDIRS)" ]; then \
493          true; \
494        else \
495          rootpre=`${PWD_COMMAND}`/; export rootpre; \
496          srcrootpre=`cd $(srcdir); ${PWD_COMMAND}`/; export srcrootpre; \
497          lib=`echo "$${rootpre}" | sed -e 's,^.*/\([^/][^/]*\)/$$,\1,'`; \
498          compiler="$(CC)"; \
499          for i in `$${compiler} --print-multi-lib 2>/dev/null`; do \
500            dir=`echo $$i | sed -e 's/;.*$$//'`; \
501            if [ "$${dir}" = "." ]; then \
502              true; \
503            else \
504              if [ -d ../$${dir}/$${lib} ]; then \
505                flags=`echo $$i | sed -e 's/^[^;]*;//' -e 's/@/ -/g'`; \
506                if (cd ../$${dir}/$${lib}; $(MAKE) $(FLAGS_TO_PASS) \
507                                CFLAGS="$(CFLAGS) $${flags}" \
508                                CCASFLAGS="$(CCASFLAGS) $${flags}" \
509                                FCFLAGS="$(FCFLAGS) $${flags}" \
510                                FFLAGS="$(FFLAGS) $${flags}" \
511                                ADAFLAGS="$(ADAFLAGS) $${flags}" \
512                                prefix="$(prefix)" \
513                                exec_prefix="$(exec_prefix)" \
514                                GCJFLAGS="$(GCJFLAGS) $${flags}" \
515                                GOCFLAGS="$(GOCFLAGS) $${flags}" \
516                                CXXFLAGS="$(CXXFLAGS) $${flags}" \
517                                LIBCFLAGS="$(LIBCFLAGS) $${flags}" \
518                                LIBCXXFLAGS="$(LIBCXXFLAGS) $${flags}" \
519                                LDFLAGS="$(LDFLAGS) $${flags}" \
520                                MULTIFLAGS="$${flags}" \
521                                DESTDIR="$(DESTDIR)" \
522                                INSTALL="$(INSTALL)" \
523                                INSTALL_DATA="$(INSTALL_DATA)" \
524                                INSTALL_PROGRAM="$(INSTALL_PROGRAM)" \
525                                INSTALL_SCRIPT="$(INSTALL_SCRIPT)" \
526                                $(DO)); then \
527                  true; \
528                else \
529                  exit 1; \
530                fi; \
531              else true; \
532              fi; \
533            fi; \
534          done; \
535        fi
536
537# FIXME: There should be an @-sign in front of the `if'.
538# Leave out until this is tested a bit more.
539multi-clean:
540        if [ -z "$(MULTIDIRS)" ]; then \
541          true; \
542        else \
543          lib=`${PWD_COMMAND} | sed -e 's,^.*/\([^/][^/]*\)$$,\1,'`; \
544          for dir in : $(MULTIDIRS); do \
545            test $$dir != : || continue; \
546EOF
547cat >>Multi.tem <<EOF
548            if [ -f ../\$\${dir}/\$\${lib}/${Makefile} ]; then \\
549EOF
550cat >>Multi.tem <<\EOF
551              if (cd ../$${dir}/$${lib}; $(MAKE) $(FLAGS_TO_PASS) $(DO)); \
552              then true; \
553              else exit 1; \
554              fi; \
555            else true; \
556            fi; \
557          done; \
558        fi
559EOF
560
561cat ${Makefile} Multi.tem > Makefile.tem
562rm -f ${Makefile} Multi.tem
563mv Makefile.tem ${Makefile}
564
565fi # ${ml_toplevel_p} = yes
566
567if [ "${ml_verbose}" = --verbose ]; then
568  echo "Adding multilib support to ${Makefile} in ${ml_realsrcdir}"
569  if [ "${ml_toplevel_p}" = yes ]; then
570    echo "multidirs=${multidirs}"
571  fi
572  echo "with_multisubdir=${with_multisubdir}"
573fi
574
575if [ "${srcdir}" = "." ]; then
576  if [ "${with_target_subdir}" != "." ]; then
577    ml_srcdotdot="../"
578  else
579    ml_srcdotdot=""
580  fi
581else
582  ml_srcdotdot=""
583fi
584
585if [ -z "${with_multisubdir}" ]; then
586  ml_subdir=
587  ml_builddotdot=
588  : # ml_srcdotdot= # already set
589else
590  ml_subdir="/${with_multisubdir}"
591  # The '[^/][^/]*' appears that way to work around a SunOS sed bug.
592  ml_builddotdot=`echo ${with_multisubdir} | sed -e 's:[^/][^/]*:..:g'`/
593  if [ "$srcdir" = "." ]; then
594    ml_srcdotdot=${ml_srcdotdot}${ml_builddotdot}
595  else
596    : # ml_srcdotdot= # already set
597  fi
598fi
599
600if [ "${ml_toplevel_p}" = yes ]; then
601  ml_do='$(MAKE)'
602  ml_clean='$(MAKE)'
603else
604  ml_do=true
605  ml_clean=true
606fi
607
608# TOP is used by newlib and should not be used elsewhere for this purpose.
609# MULTI{SRC,BUILD}TOP are the proper ones to use.  MULTISRCTOP is empty
610# when srcdir != builddir.  MULTIBUILDTOP is always some number of ../'s.
611# FIXME: newlib needs to be updated to use MULTI{SRC,BUILD}TOP so we can
612# delete TOP.  Newlib may wish to continue to use TOP for its own purposes
613# of course.
614# MULTIDIRS is non-empty for the cpu top level Makefile (eg: newlib/Makefile)
615# and lists the subdirectories to recurse into.
616# MULTISUBDIR is non-empty in each cpu subdirectory's Makefile
617# (eg: newlib/h8300h/Makefile) and is the installed subdirectory name with
618# a leading '/'.
619# MULTIDO is used for targets like all, install, and check where
620# $(FLAGS_TO_PASS) augmented with the subdir's compiler option is needed.
621# MULTICLEAN is used for the *clean targets.
622#
623# ??? It is possible to merge MULTIDO and MULTICLEAN into one.  They are
624# currently kept separate because we don't want the *clean targets to require
625# the existence of the compiler (which MULTIDO currently requires) and
626# therefore we'd have to record the directory options as well as names
627# (currently we just record the names and use --print-multi-lib to get the
628# options).
629
630sed -e "s:^TOP[         ]*=[    ]*\([./]*\)[    ]*$:TOP = ${ml_builddotdot}\1:" \
631    -e "s:^MULTISRCTOP[         ]*=.*$:MULTISRCTOP = ${ml_srcdotdot}:" \
632    -e "s:^MULTIBUILDTOP[       ]*=.*$:MULTIBUILDTOP = ${ml_builddotdot}:" \
633    -e "s:^MULTIDIRS[   ]*=.*$:MULTIDIRS = ${multidirs}:" \
634    -e "s:^MULTISUBDIR[         ]*=.*$:MULTISUBDIR = ${ml_subdir}:" \
635    -e "s:^MULTIDO[     ]*=.*$:MULTIDO = $ml_do:" \
636    -e "s:^MULTICLEAN[  ]*=.*$:MULTICLEAN = $ml_clean:" \
637        ${Makefile} > Makefile.tem
638rm -f ${Makefile}
639mv Makefile.tem ${Makefile}
640
641# If this is the library's top level, configure each multilib subdir.
642# This is done at the end because this is the loop that runs configure
643# in each multilib subdir and it seemed reasonable to finish updating the
644# Makefile before going on to configure the subdirs.
645
646if [ "${ml_toplevel_p}" = yes ]; then
647
648# We must freshly configure each subdirectory.  This bit of code is
649# actually partially stolen from the main configure script.  FIXME.
650
651if [ -n "${multidirs}" ] && [ -z "${ml_norecursion}" ]; then
652
653  if [ "${ml_verbose}" = --verbose ]; then
654    echo "Running configure in multilib subdirs ${multidirs}"
655    echo "pwd: `${PWDCMD-pwd}`"
656  fi
657
658  ml_origdir=`${PWDCMD-pwd}`
659  ml_libdir=`echo "$ml_origdir" | sed -e 's,^.*/,,'`
660  # cd to top-level-build-dir/${with_target_subdir}
661  cd ..
662
663  for ml_dir in ${multidirs}; do
664
665    if [ "${ml_verbose}" = --verbose ]; then
666      echo "Running configure in multilib subdir ${ml_dir}"
667      echo "pwd: `${PWDCMD-pwd}`"
668    fi
669
670    if [ -d ${ml_dir} ]; then true; else
671      # ``mkdir -p ${ml_dir}'' See also mkinstalldirs.
672      pathcomp=""
673      for d in `echo ":${ml_dir}" | sed -ne 's/^:\//#/;s/^://;s/\// /g;s/^#/\//;p'`; do
674        pathcomp="$pathcomp$d"
675        case "$pathcomp" in
676          -* ) pathcomp=./$pathcomp ;;
677        esac
678        if test ! -d "$pathcomp"; then
679           echo "mkdir $pathcomp" 1>&2
680           mkdir "$pathcomp" > /dev/null 2>&1 || lasterr=$?
681        fi
682        if test ! -d "$pathcomp"; then
683           exit $lasterr
684        fi
685        pathcomp="$pathcomp/"
686      done
687    fi
688    if [ -d ${ml_dir}/${ml_libdir} ]; then true; else mkdir ${ml_dir}/${ml_libdir}; fi
689
690    # Eg: if ${ml_dir} = m68000/m68881, dotdot = ../../
691    dotdot=../`echo ${ml_dir} | sed -e 's|[^/]||g' -e 's|/|../|g'`
692
693    case ${srcdir} in
694    ".")
695      echo "Building symlink tree in `${PWDCMD-pwd}`/${ml_dir}/${ml_libdir}"
696      if [ "${with_target_subdir}" != "." ]; then
697        ml_unsubdir="../"
698      else
699        ml_unsubdir=""
700      fi
701      (cd ${ml_dir}/${ml_libdir};
702       ../${dotdot}${ml_unsubdir}symlink-tree ../${dotdot}${ml_unsubdir}${ml_libdir} "")
703      if [ -f ${ml_dir}/${ml_libdir}/${Makefile} ]; then
704        if [ x"${MAKE}" = x ]; then
705          (cd ${ml_dir}/${ml_libdir}; make distclean)
706        else
707          (cd ${ml_dir}/${ml_libdir}; ${MAKE} distclean)
708        fi
709      fi
710      ml_newsrcdir="."
711      ml_srcdiroption=
712      multisrctop=${dotdot}
713      ;;
714    *)
715      case "${srcdir}" in
716      /* | [A-Za-z]:[\\/]* ) # absolute path
717        ml_newsrcdir=${srcdir}
718        ;;
719      *) # otherwise relative
720        ml_newsrcdir=${dotdot}${srcdir}
721        ;;
722      esac
723      ml_srcdiroption="-srcdir=${ml_newsrcdir}"
724      multisrctop=
725      ;;
726    esac
727
728    case "${progname}" in
729    /* | [A-Za-z]:[\\/]* )     ml_recprog=${progname} ;;
730    *)      ml_recprog=${dotdot}${progname} ;;
731    esac
732
733    # FIXME: POPDIR=${PWD=`pwd`} doesn't work here.
734    ML_POPDIR=`${PWDCMD-pwd}`
735    cd ${ml_dir}/${ml_libdir}
736
737    if [ -f ${ml_newsrcdir}/configure ]; then
738      ml_recprog="${ml_newsrcdir}/configure"
739    fi
740
741    # find compiler flag corresponding to ${ml_dir}
742    for i in `${CC-gcc} --print-multi-lib 2>/dev/null`; do
743      dir=`echo $i | sed -e 's/;.*$//'`
744      if [ "${dir}" = "${ml_dir}" ]; then
745        flags=`echo $i | sed -e 's/^[^;]*;//' -e 's/@/ -/g'`
746        break
747      fi
748    done
749    ml_config_env='CC="${CC_}$flags" CXX="${CXX_}$flags" F77="${F77_}$flags" GCJ="${GCJ_}$flags" GFORTRAN="${GFORTRAN_}$flags" GOC="${GOC_}$flags"'
750
751    if [ "${with_target_subdir}" = "." ]; then
752        CC_=$CC' '
753        CXX_=$CXX' '
754        F77_=$F77' '
755        GCJ_=$GCJ' '
756        GFORTRAN_=$GFORTRAN' '
757        GOC_=$GOC' '
758    else
759        # Create a regular expression that matches any string as long
760        # as ML_POPDIR.
761        popdir_rx=`echo "${ML_POPDIR}" | sed 's,.,.,g'`
762        CC_=
763        for arg in ${CC}; do
764          case $arg in
765          -[BIL]"${ML_POPDIR}"/*)
766            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"`' ' ;;
767          "${ML_POPDIR}"/*)
768            CC_="${CC_}"`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
769          *)
770            CC_="${CC_}${arg} " ;;
771          esac
772        done
773
774        CXX_=
775        for arg in ${CXX}; do
776          case $arg in
777          -[BIL]"${ML_POPDIR}"/*)
778            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"`' ' ;;
779          "${ML_POPDIR}"/*)
780            CXX_="${CXX_}"`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
781          *)
782            CXX_="${CXX_}${arg} " ;;
783          esac
784        done
785
786        F77_=
787        for arg in ${F77}; do
788          case $arg in
789          -[BIL]"${ML_POPDIR}"/*)
790            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"`' ' ;;
791          "${ML_POPDIR}"/*)
792            F77_="${F77_}"`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
793          *)
794            F77_="${F77_}${arg} " ;;
795          esac
796        done
797
798        GCJ_=
799        for arg in ${GCJ}; do
800          case $arg in
801          -[BIL]"${ML_POPDIR}"/*)
802            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"`' ' ;;
803          "${ML_POPDIR}"/*)
804            GCJ_="${GCJ_}"`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
805          *)
806            GCJ_="${GCJ_}${arg} " ;;
807          esac
808        done
809
810        GFORTRAN_=
811        for arg in ${GFORTRAN}; do
812          case $arg in
813          -[BIL]"${ML_POPDIR}"/*)
814            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"`' ' ;;
815          "${ML_POPDIR}"/*)
816            GFORTRAN_="${GFORTRAN_}"`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
817          *)
818            GFORTRAN_="${GFORTRAN_}${arg} " ;;
819          esac
820        done
821
822        GOC_=
823        for arg in ${GOC}; do
824          case $arg in
825          -[BIL]"${ML_POPDIR}"/*)
826            GOC_="${GOC_}"`echo "X${arg}" | sed -n "s/X\\(-[BIL]${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X-[BIL]${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
827          "${ML_POPDIR}"/*)
828            GOC_="${GOC_}"`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
829          *)
830            GOC_="${GOC_}${arg} " ;;
831          esac
832        done
833
834        if test "x${LD_LIBRARY_PATH+set}" = xset; then
835          LD_LIBRARY_PATH_=
836          for arg in `echo "$LD_LIBRARY_PATH" | tr ':' ' '`; do
837            case "$arg" in
838            "${ML_POPDIR}"/*)
839              arg=`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`
840              ;;
841            esac
842            if test "x$LD_LIBRARY_PATH_" != x; then
843              LD_LIBRARY_PATH_=$LD_LIBRARY_PATH_:$arg
844            else
845              LD_LIBRARY_PATH_=$arg
846            fi
847          done
848          ml_config_env="$ml_config_env LD_LIBRARY_PATH=$LD_LIBRARY_PATH_"
849        fi
850
851        if test "x${SHLIB_PATH+set}" = xset; then
852          SHLIB_PATH_=
853          for arg in `echo "$SHLIB_PATH" | tr ':' ' '`; do
854            case "$arg" in
855            "${ML_POPDIR}"/*)
856              arg=`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`
857              ;;
858            esac
859            if test "x$SHLIB_PATH_" != x; then
860              SHLIB_PATH_=$SHLIB_PATH_:$arg
861            else
862              SHLIB_PATH_=$arg
863            fi
864          done
865          ml_config_env="$ml_config_env SHLIB_PATH=$SHLIB_PATH_"
866        fi
867    fi
868
869    if eval ${ml_config_env} ${ml_config_shell} ${ml_recprog} \
870        --with-multisubdir=${ml_dir} --with-multisrctop=${multisrctop} \
871        "${ac_configure_args}" ${ml_config_env} ${ml_srcdiroption} ; then
872      true
873    else
874      exit 1
875    fi
876
877    cd "${ML_POPDIR}"
878
879  done
880
881  cd "${ml_origdir}"
882fi
883
884fi # ${ml_toplevel_p} = yes
885fi # ${enable_multilib} = yes
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