source: rtems/config-ml.in @ 05f5bf2

4.104.114.84.9
Last change on this file since 05f5bf2 was 05f5bf2, checked in by Ralf Corsepius <ralf.corsepius@…>, on Jul 6, 2002 at 7:04:01 AM

Initial revision

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File size: 23.4 KB
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1# Configure fragment invoked in the post-target section for subdirs
2# wanting multilib support.
3#
4# It is advisable to support a few --enable/--disable options to let the
5# user select which libraries s/he really wants.
6#
7# Subdirectories wishing to use multilib should put the following lines
8# in the "post-target" section of configure.in.
9#
10# if [ "${srcdir}" = "." ] ; then
11#   if [ "${with_target_subdir}" != "." ] ; then
12#     . ${with_multisrctop}../../config-ml.in
13#   else
14#     . ${with_multisrctop}../config-ml.in
15#   fi
16# else
17#   . ${srcdir}/../config-ml.in
18# fi
19#
20#
21# Things are complicated because 6 separate cases must be handled:
22# 2 (native, cross) x 3 (absolute-path, relative-not-dot, dot) = 6.
23#
24# srcdir=. is special.  It must handle make programs that don't handle VPATH.
25# To implement this, a symlink tree is built for each library and for each
26# multilib subdir.
27#
28# The build tree is layed out as
29#
30# ./
31#   newlib
32#   m68020/
33#          newlib
34#          m68881/
35#                 newlib
36#
37# The nice feature about this arrangement is that inter-library references
38# in the build tree work without having to care where you are.  Note that
39# inter-library references also work in the source tree because symlink trees
40# are built when srcdir=.
41#
42# Unfortunately, trying to access the libraries in the build tree requires
43# the user to manually choose which library to use as GCC won't be able to
44# find the right one.  This is viewed as the lesser of two evils.
45#
46# Configure variables:
47# ${with_target_subdir} = "." for native, or ${target_alias} for cross.
48# Set by top level Makefile.
49# ${with_multisrctop} = how many levels of multilibs there are in the source
50# tree.  It exists to handle the case of configuring in the source tree:
51# ${srcdir} is not constant.
52# ${with_multisubdir} = name of multilib subdirectory (eg: m68020/m68881).
53#
54# Makefile variables:
55# MULTISRCTOP = number of multilib levels in source tree (+1 if cross)
56# (FIXME: note that this is different than ${with_multisrctop}.  Check out.).
57# MULTIBUILDTOP = number of multilib levels in build tree
58# MULTIDIRS = list of multilib subdirs (eg: m68000 m68020 ...)
59# (only defined in each library's main Makefile).
60# MULTISUBDIR = installed subdirectory name with leading '/' (eg: /m68000)
61# (only defined in each multilib subdir).
62
63# FIXME: Multilib is currently disabled by default for everything other than
64# newlib.  It is up to each target to turn on multilib support for the other
65# libraries as desired.
66
67# We have to handle being invoked by both Cygnus configure and Autoconf.
68#
69# Cygnus configure incoming variables:
70# srcdir, subdir, host, arguments
71#
72# Autoconf incoming variables:
73# srcdir, host, ac_configure_args
74#
75# We *could* figure srcdir and host out, but we'd have to do work that
76# our caller has already done to figure them out and requiring these two
77# seems reasonable.
78# Note that `host' in this case is GCC's `target'.  Target libraries are
79# configured for a particular host.
80
81if [ -n "${ac_configure_args}" ]; then
82  Makefile=${ac_file-Makefile}
83  ml_config_shell=${CONFIG_SHELL-/bin/sh}
84  ml_arguments="${ac_configure_args}"
85  ml_realsrcdir=${srcdir}
86else
87  Makefile=${Makefile-Makefile}
88  ml_config_shell=${config_shell-/bin/sh}
89  ml_arguments="${arguments}"
90  if [ -n "${subdir}" -a "${subdir}" != "." ] ; then
91    ml_realsrcdir=${srcdir}/${subdir}
92  else
93    ml_realsrcdir=${srcdir}
94  fi
95fi
96
97# Scan all the arguments and set all the ones we need.
98
99ml_verbose=--verbose
100for option in ${ml_arguments}
101do
102  case $option in
103  --*) ;;
104  -*) option=-$option ;;
105  esac
106
107  case $option in
108  --*=*)
109        optarg=`echo $option | sed -e 's/^[^=]*=//'`
110        ;;
111  esac
112
113  case $option in
114  --disable-*)
115        enableopt=`echo ${option} | sed 's:^--disable-:enable_:;s:-:_:g'`
116        eval $enableopt=no
117        ;;
118  --enable-*)
119        case "$option" in
120        *=*)    ;;
121        *)      optarg=yes ;;
122        esac
123        enableopt=`echo ${option} | sed 's:^--::;s:=.*$::;s:-:_:g'`
124        eval $enableopt="$optarg"
125        ;;
126  --norecursion | --no*)
127        ml_norecursion=yes
128        ;;
129  --silent | --sil* | --quiet | --q*)
130        ml_verbose=--silent
131        ;;
132  --verbose | --v | --verb*)
133        ml_verbose=--verbose
134        ;;
135  --with-*)
136        case "$option" in
137        *=*)    ;;
138        *)      optarg=yes ;;
139        esac
140        withopt=`echo ${option} | sed 's:^--::;s:=.*$::;s:-:_:g'`
141        eval $withopt="$optarg"
142        ;;
143  --without-*)
144        withopt=`echo ${option} | sed 's:^--::;s:out::;s:-:_:g'`
145        eval $withopt=no
146        ;;
147  esac
148done
149
150# Only do this if --enable-multilib.
151if [ "${enable_multilib}" = yes ]; then
152
153# Compute whether this is the library's top level directory
154# (ie: not a multilib subdirectory, and not a subdirectory like newlib/src).
155# ${with_multisubdir} tells us we're in the right branch, but we could be
156# in a subdir of that.
157# ??? The previous version could void this test by separating the process into
158# two files: one that only the library's toplevel configure.in ran (to
159# configure the multilib subdirs), and another that all configure.in's ran to
160# update the Makefile.  It seemed reasonable to collapse all multilib support
161# into one file, but it does leave us with having to perform this test.
162ml_toplevel_p=no
163if [ -z "${with_multisubdir}" ]; then
164  if [ "${srcdir}" = "." ]; then
165    # Use ${ml_realsrcdir} instead of ${srcdir} here to account for ${subdir}.
166    # ${with_target_subdir} = "." for native, otherwise target alias.
167    if [ "${with_target_subdir}" = "." ]; then
168      if [ -f ${ml_realsrcdir}/../config-ml.in ]; then
169        ml_toplevel_p=yes
170      fi
171    else
172      if [ -f ${ml_realsrcdir}/../../config-ml.in ]; then
173        ml_toplevel_p=yes
174      fi
175    fi
176  else
177    # Use ${ml_realsrcdir} instead of ${srcdir} here to account for ${subdir}.
178    if [ -f ${ml_realsrcdir}/../config-ml.in ]; then
179      ml_toplevel_p=yes
180    fi
181  fi
182fi
183
184# If this is the library's top level directory, set multidirs to the
185# multilib subdirs to support.  This lives at the top because we need
186# `multidirs' set right away.
187
188if [ "${ml_toplevel_p}" = yes ]; then
189
190multidirs=
191for i in `${CC-gcc} --print-multi-lib 2>/dev/null`; do
192  dir=`echo $i | sed -e 's/;.*$//'`
193  if [ "${dir}" = "." ]; then
194    true
195  else
196    if [ -z "${multidirs}" ]; then
197      multidirs="${dir}"
198    else
199      multidirs="${multidirs} ${dir}"
200    fi
201  fi
202done
203
204# Target libraries are configured for the host they run on, so we check
205# $host here, not $target.
206
207case "${host}" in
208arc-*-elf*)
209        if [ x$enable_biendian != xyes ]
210        then
211          old_multidirs=${multidirs}
212          multidirs=""
213          for x in ${old_multidirs}; do
214            case "${x}" in
215              *be*) : ;;
216              *) multidirs="${multidirs} ${x}" ;;
217            esac
218          done
219        fi
220        ;;
221arm-*-*)
222        if [ x"$enable_fpu" = xno ]
223        then
224          old_multidirs=${multidirs}
225          multidirs=""
226          for x in ${old_multidirs}; do
227            case "${x}" in
228              *fpu*) : ;;
229              *) multidirs="${multidirs} ${x}" ;;
230            esac
231          done
232        fi
233        if [ x"$enable_26bit" = xno ]
234        then
235          old_multidirs=${multidirs}
236          multidirs=""
237          for x in ${old_multidirs}; do
238            case "${x}" in
239              *26bit*) : ;;
240              *) multidirs="${multidirs} ${x}" ;;
241            esac
242          done
243        fi
244        if [ x"$enable_underscore" = xno ]
245        then
246          old_multidirs=${multidirs}
247          multidirs=""
248          for x in ${old_multidirs}; do
249            case "${x}" in
250              *under*) : ;;
251              *) multidirs="${multidirs} ${x}" ;;
252            esac
253          done
254        fi
255        if [ x"$enable_interwork" = xno ]
256        then
257          old_multidirs=${multidirs}
258          multidirs=""
259          for x in ${old_multidirs}; do
260            case "${x}" in
261              *interwork*) : ;;
262              *) multidirs="${multidirs} ${x}" ;;
263            esac
264          done
265        fi
266        if [ x$enable_biendian = xno ]
267        then
268          old_multidirs="${multidirs}"
269          multidirs=""
270          for x in ${old_multidirs}; do
271            case "$x" in
272              *le* ) : ;;
273              *be* ) : ;;
274              *) multidirs="${multidirs} ${x}" ;;
275            esac
276          done
277        fi
278        if [ x"$enable_nofmult" = xno ]
279        then
280          old_multidirs="${multidirs}"
281          multidirs=""
282          for x in ${old_multidirs}; do
283            case "$x" in
284              *nofmult* ) : ;;
285              *) multidirs="${multidirs} ${x}" ;;
286            esac
287          done
288        fi
289        ;;
290m68*-*-*)
291        if [ x$enable_softfloat = xno ]
292        then
293          old_multidirs="${multidirs}"
294          multidirs=""
295          for x in ${old_multidirs}; do
296            case "$x" in
297              *soft-float* ) : ;;
298              *) multidirs="${multidirs} ${x}" ;;
299            esac
300          done
301        fi
302        if [ x$enable_m68881 = xno ]
303        then
304          old_multidirs="${multidirs}"
305          multidirs=""
306          for x in ${old_multidirs}; do
307            case "$x" in
308              *m68881* ) : ;;
309              *) multidirs="${multidirs} ${x}" ;;
310            esac
311          done
312        fi
313        if [ x$enable_m68000 = xno ]
314        then
315          old_multidirs="${multidirs}"
316          multidirs=""
317          for x in ${old_multidirs}; do
318            case "$x" in
319              *m68000* ) : ;;
320              *) multidirs="${multidirs} ${x}" ;;
321            esac
322          done
323        fi
324        if [ x$enable_m68020 = xno ]
325        then
326          old_multidirs="${multidirs}"
327          multidirs=""
328          for x in ${old_multidirs}; do
329            case "$x" in
330              *m68020* ) : ;;
331              *) multidirs="${multidirs} ${x}" ;;
332            esac
333          done
334        fi
335        ;;
336mips*-*-*)
337        if [ x$enable_single_float = xno ]
338        then
339          old_multidirs="${multidirs}"
340          multidirs=""
341          for x in ${old_multidirs}; do
342            case "$x" in
343              *single* ) : ;;
344              *) multidirs="${multidirs} ${x}" ;;
345            esac
346          done
347        fi
348        if [ x$enable_biendian = xno ]
349        then
350          old_multidirs="${multidirs}"
351          multidirs=""
352          for x in ${old_multidirs}; do
353            case "$x" in
354              *el* ) : ;;
355              *eb* ) : ;;
356              *) multidirs="${multidirs} ${x}" ;;
357            esac
358          done
359        fi
360        if [ x$enable_softfloat = xno ]
361        then
362          old_multidirs="${multidirs}"
363          multidirs=""
364          for x in ${old_multidirs}; do
365            case "$x" in
366              *soft-float* ) : ;;
367              *) multidirs="${multidirs} ${x}" ;;
368            esac
369          done
370        fi
371        case " $multidirs " in
372        *" mabi=64 "*)
373          # We will not be able to create libraries with -mabi=64 if
374          # we cannot even link a trivial program.  It usually
375          # indicates the 64bit libraries are missing.
376          if echo 'main() {}' > conftest.c &&
377             ${CC-gcc} -mabi=64 conftest.c -o conftest; then
378            :
379          else
380            echo Could not link program with -mabi=64, disabling it.
381            old_multidirs="${multidirs}"
382            multidirs=""
383            for x in ${old_multidirs}; do
384              case "$x" in
385              *mabi=64* ) : ;;
386              *) multidirs="${multidirs} ${x}" ;;
387              esac
388            done
389          fi
390          rm -f conftest.c conftest
391          ;;
392        esac
393        ;;
394powerpc*-*-* | rs6000*-*-*)
395        if [ x$enable_aix64 = xno ]
396        then
397          old_multidirs="${multidirs}"
398          multidirs=""
399          for x in ${old_multidirs}; do
400            case "$x" in
401              *ppc64* ) : ;;
402              *) multidirs="${multidirs} ${x}" ;;
403            esac
404          done
405        fi
406        if [ x$enable_pthread = xno ]
407        then
408          old_multidirs="${multidirs}"
409          multidirs=""
410          for x in ${old_multidirs}; do
411            case "$x" in
412              *pthread* ) : ;;
413              *) multidirs="${multidirs} ${x}" ;;
414            esac
415          done
416        fi
417        if [ x$enable_softfloat = xno ]
418        then
419          old_multidirs="${multidirs}"
420          multidirs=""
421          for x in ${old_multidirs}; do
422            case "$x" in
423              *soft-float* ) : ;;
424              *) multidirs="${multidirs} ${x}" ;;
425            esac
426          done
427        fi
428        if [ x$enable_powercpu = xno ]
429        then
430          old_multidirs="${multidirs}"
431          multidirs=""
432          for x in ${old_multidirs}; do
433            case "$x" in
434              power | */power | */power/* ) : ;;
435              *) multidirs="${multidirs} ${x}" ;;
436            esac
437          done
438        fi
439        if [ x$enable_powerpccpu = xno ]
440        then
441          old_multidirs="${multidirs}"
442          multidirs=""
443          for x in ${old_multidirs}; do
444            case "$x" in
445              *powerpc* ) : ;;
446              *) multidirs="${multidirs} ${x}" ;;
447            esac
448          done
449        fi
450        if [ x$enable_powerpcos = xno ]
451        then
452          old_multidirs="${multidirs}"
453          multidirs=""
454          for x in ${old_multidirs}; do
455            case "$x" in
456              *mcall-linux* | *mcall-solaris* ) : ;;
457              *) multidirs="${multidirs} ${x}" ;;
458            esac
459          done
460        fi
461        if [ x$enable_biendian = xno ]
462        then
463          old_multidirs="${multidirs}"
464          multidirs=""
465          for x in ${old_multidirs}; do
466            case "$x" in
467              *mlittle* | *mbig* ) : ;;
468              *) multidirs="${multidirs} ${x}" ;;
469            esac
470          done
471        fi
472        if [ x$enable_sysv = xno ]
473        then
474          old_multidirs="${multidirs}"
475          multidirs=""
476          for x in ${old_multidirs}; do
477            case "$x" in
478              *mcall-sysv* ) : ;;
479              *) multidirs="${multidirs} ${x}" ;;
480            esac
481          done
482        fi
483        if [ x$enable_aix = xno ]
484        then
485          old_multidirs="${multidirs}"
486          multidirs=""
487          for x in ${old_multidirs}; do
488            case "$x" in
489              *mcall-aix* ) : ;;
490              *) multidirs="${multidirs} ${x}" ;;
491            esac
492          done
493        fi
494        ;;
495sparc*-*-*)
496        case " $multidirs " in
497        *" m64 "*)
498          # We will not be able to create libraries with -m64 if
499          # we cannot even link a trivial program.  It usually
500          # indicates the 64bit libraries are missing.
501          if echo 'main() {}' > conftest.c &&
502             ${CC-gcc} -m64 conftest.c -o conftest; then
503            :
504          else
505            echo Could not link program with -m64, disabling it.
506            old_multidirs="${multidirs}"
507            multidirs=""
508            for x in ${old_multidirs}; do
509              case "$x" in
510              *m64* ) : ;;
511              *) multidirs="${multidirs} ${x}" ;;
512              esac
513            done
514          fi
515          rm -f conftest.c conftest
516          ;;
517        esac
518        ;;
519esac
520
521# Remove extraneous blanks from multidirs.
522# Tests like `if [ -n "$multidirs" ]' require it.
523multidirs=`echo "$multidirs" | sed -e 's/^[ ][ ]*//' -e 's/[ ][ ]*$//' -e 's/[ ][ ]*/ /g'`
524
525# Add code to library's top level makefile to handle building the multilib
526# subdirs.
527
528cat > Multi.tem <<\EOF
529
530# FIXME: There should be an @-sign in front of the `if'.
531# Leave out until this is tested a bit more.
532multi-do:
533        if [ -z "$(MULTIDIRS)" ]; then \
534          true; \
535        else \
536          rootpre=`pwd`/; export rootpre; \
537          srcrootpre=`cd $(srcdir); pwd`/; export srcrootpre; \
538          lib=`echo $${rootpre} | sed -e 's,^.*/\([^/][^/]*\)/$$,\1,'`; \
539          compiler="$(CC)"; \
540          for i in `$${compiler} --print-multi-lib 2>/dev/null`; do \
541            dir=`echo $$i | sed -e 's/;.*$$//'`; \
542            if [ "$${dir}" = "." ]; then \
543              true; \
544            else \
545              if [ -d ../$${dir}/$${lib} ]; then \
546                flags=`echo $$i | sed -e 's/^[^;]*;//' -e 's/@/ -/g'`; \
547                if (cd ../$${dir}/$${lib}; $(MAKE) $(FLAGS_TO_PASS) \
548                                CFLAGS="$(CFLAGS) $${flags}" \
549                                prefix="$(prefix)" \
550                                exec_prefix="$(exec_prefix)" \
551                                GCJFLAGS="$(GCJFLAGS) $${flags}" \
552                                CXXFLAGS="$(CXXFLAGS) $${flags}" \
553                                LIBCFLAGS="$(LIBCFLAGS) $${flags}" \
554                                LIBCXXFLAGS="$(LIBCXXFLAGS) $${flags}" \
555                                LDFLAGS="$(LDFLAGS) $${flags}" \
556                                $(DO)); then \
557                  true; \
558                else \
559                  exit 1; \
560                fi; \
561              else true; \
562              fi; \
563            fi; \
564          done; \
565        fi
566
567# FIXME: There should be an @-sign in front of the `if'.
568# Leave out until this is tested a bit more.
569multi-clean:
570        if [ -z "$(MULTIDIRS)" ]; then \
571          true; \
572        else \
573          lib=`pwd | sed -e 's,^.*/\([^/][^/]*\)$$,\1,'`; \
574          for dir in Makefile $(MULTIDIRS); do \
575            if [ -f ../$${dir}/$${lib}/Makefile ]; then \
576              if (cd ../$${dir}/$${lib}; $(MAKE) $(FLAGS_TO_PASS) $(DO)); \
577              then true; \
578              else exit 1; \
579              fi; \
580            else true; \
581            fi; \
582          done; \
583        fi
584EOF
585
586cat ${Makefile} Multi.tem > Makefile.tem
587rm -f ${Makefile} Multi.tem
588mv Makefile.tem ${Makefile}
589
590fi # ${ml_toplevel_p} = yes
591
592if [ "${ml_verbose}" = --verbose ]; then
593  echo "Adding multilib support to Makefile in ${ml_realsrcdir}"
594  if [ "${ml_toplevel_p}" = yes ]; then
595    echo "multidirs=${multidirs}"
596  fi
597  echo "with_multisubdir=${with_multisubdir}"
598fi
599
600if [ "${srcdir}" = "." ]; then
601  if [ "${with_target_subdir}" != "." ]; then
602    ml_srcdotdot="../"
603  else
604    ml_srcdotdot=""
605  fi
606else
607  ml_srcdotdot=""
608fi
609
610if [ -z "${with_multisubdir}" ]; then
611  ml_subdir=
612  ml_builddotdot=
613  : # ml_srcdotdot= # already set
614else
615  ml_subdir="/${with_multisubdir}"
616  # The '[^/][^/]*' appears that way to work around a SunOS sed bug.
617  ml_builddotdot=`echo ${with_multisubdir} | sed -e 's:[^/][^/]*:..:g'`/
618  if [ "$srcdir" = "." ]; then
619    ml_srcdotdot=${ml_srcdotdot}${ml_builddotdot}
620  else
621    : # ml_srcdotdot= # already set
622  fi
623fi
624
625if [ "${ml_toplevel_p}" = yes ]; then
626  ml_do='$(MAKE)'
627  ml_clean='$(MAKE)'
628else
629  ml_do=true
630  ml_clean=true
631fi
632
633# TOP is used by newlib and should not be used elsewhere for this purpose.
634# MULTI{SRC,BUILD}TOP are the proper ones to use.  MULTISRCTOP is empty
635# when srcdir != builddir.  MULTIBUILDTOP is always some number of ../'s.
636# FIXME: newlib needs to be updated to use MULTI{SRC,BUILD}TOP so we can
637# delete TOP.  Newlib may wish to continue to use TOP for its own purposes
638# of course.
639# MULTIDIRS is non-empty for the cpu top level Makefile (eg: newlib/Makefile)
640# and lists the subdirectories to recurse into.
641# MULTISUBDIR is non-empty in each cpu subdirectory's Makefile
642# (eg: newlib/h8300h/Makefile) and is the installed subdirectory name with
643# a leading '/'.
644# MULTIDO is used for targets like all, install, and check where
645# $(FLAGS_TO_PASS) augmented with the subdir's compiler option is needed.
646# MULTICLEAN is used for the *clean targets.
647#
648# ??? It is possible to merge MULTIDO and MULTICLEAN into one.  They are
649# currently kept separate because we don't want the *clean targets to require
650# the existence of the compiler (which MULTIDO currently requires) and
651# therefore we'd have to record the directory options as well as names
652# (currently we just record the names and use --print-multi-lib to get the
653# options).
654
655sed -e "s:^TOP[         ]*=[    ]*\([./]*\)[    ]*$:TOP = ${ml_builddotdot}\1:" \
656    -e "s:^MULTISRCTOP[         ]*=.*$:MULTISRCTOP = ${ml_srcdotdot}:" \
657    -e "s:^MULTIBUILDTOP[       ]*=.*$:MULTIBUILDTOP = ${ml_builddotdot}:" \
658    -e "s:^MULTIDIRS[   ]*=.*$:MULTIDIRS = ${multidirs}:" \
659    -e "s:^MULTISUBDIR[         ]*=.*$:MULTISUBDIR = ${ml_subdir}:" \
660    -e "s:^MULTIDO[     ]*=.*$:MULTIDO = $ml_do:" \
661    -e "s:^MULTICLEAN[  ]*=.*$:MULTICLEAN = $ml_clean:" \
662        ${Makefile} > Makefile.tem
663rm -f ${Makefile}
664mv Makefile.tem ${Makefile}
665
666# If this is the library's top level, configure each multilib subdir.
667# This is done at the end because this is the loop that runs configure
668# in each multilib subdir and it seemed reasonable to finish updating the
669# Makefile before going on to configure the subdirs.
670
671if [ "${ml_toplevel_p}" = yes ]; then
672
673# We must freshly configure each subdirectory.  This bit of code is
674# actually partially stolen from the main configure script.  FIXME.
675
676if [ -n "${multidirs}" ] && [ -z "${ml_norecursion}" ]; then
677
678  if [ "${ml_verbose}" = --verbose ]; then
679    echo "Running configure in multilib subdirs ${multidirs}"
680    echo "pwd: `pwd`"
681  fi
682
683  ml_origdir=`pwd`
684  ml_libdir=`echo $ml_origdir | sed -e 's,^.*/,,'`
685  # cd to top-level-build-dir/${with_target_subdir}
686  cd ..
687
688  for ml_dir in ${multidirs}; do
689
690    if [ "${ml_verbose}" = --verbose ]; then
691      echo "Running configure in multilib subdir ${ml_dir}"
692      echo "pwd: `pwd`"
693    fi
694
695    if [ -d ${ml_dir} ]; then true; else
696      # ``mkdir -p ${ml_dir}'' See also mkinstalldirs.
697      pathcomp=""
698      for d in `echo ":${ml_dir}" | sed -ne 's/^:\//#/;s/^://;s/\// /g;s/^#/\//;p'`; do
699        pathcomp="$pathcomp$d"
700        case "$pathcomp" in
701          -* ) pathcomp=./$pathcomp ;;
702        esac
703        if test ! -d "$pathcomp"; then
704           echo "mkdir $pathcomp" 1>&2
705           mkdir "$pathcomp" > /dev/null 2>&1 || lasterr=$?
706        fi
707        if test ! -d "$pathcomp"; then
708           exit $lasterr
709        fi
710        pathcomp="$pathcomp/"
711      done
712    fi
713    if [ -d ${ml_dir}/${ml_libdir} ]; then true; else mkdir ${ml_dir}/${ml_libdir}; fi
714
715    # Eg: if ${ml_dir} = m68000/m68881, dotdot = ../../
716    dotdot=../`echo ${ml_dir} | sed -e 's|[^/]||g' -e 's|/|../|g'`
717
718    case ${srcdir} in
719    ".")
720      echo Building symlink tree in `pwd`/${ml_dir}/${ml_libdir}
721      if [ "${with_target_subdir}" != "." ]; then
722        ml_unsubdir="../"
723      else
724        ml_unsubdir=""
725      fi
726      (cd ${ml_dir}/${ml_libdir};
727       ../${dotdot}${ml_unsubdir}symlink-tree ../${dotdot}${ml_unsubdir}${ml_libdir} "")
728      if [ -f ${ml_dir}/${ml_libdir}/Makefile ]; then
729        if [ x"${MAKE}" = x ]; then
730          (cd ${ml_dir}/${ml_libdir}; make distclean)
731        else
732          (cd ${ml_dir}/${ml_libdir}; ${MAKE} distclean)
733        fi
734      fi
735      ml_newsrcdir="."
736      ml_srcdiroption=
737      multisrctop=${dotdot}
738      ;;
739    *)
740      case "${srcdir}" in
741      /* | [A-Za-z]:[\\/]* ) # absolute path
742        ml_newsrcdir=${srcdir}
743        ;;
744      *) # otherwise relative
745        ml_newsrcdir=${dotdot}${srcdir}
746        ;;
747      esac
748      ml_srcdiroption="-srcdir=${ml_newsrcdir}"
749      multisrctop=
750      ;;
751    esac
752
753    case "${progname}" in
754    /* | [A-Za-z]:[\\/]* )     ml_recprog=${progname} ;;
755    *)      ml_recprog=${dotdot}${progname} ;;
756    esac
757
758    # FIXME: POPDIR=${PWD=`pwd`} doesn't work here.
759    ML_POPDIR=`pwd`
760    cd ${ml_dir}/${ml_libdir}
761
762    if [ -f ${ml_newsrcdir}/configure ]; then
763      ml_recprog="${ml_newsrcdir}/configure --cache-file=../config.cache"
764    fi
765
766    # find compiler flag corresponding to ${ml_dir}
767    for i in `${CC-gcc} --print-multi-lib 2>/dev/null`; do
768      dir=`echo $i | sed -e 's/;.*$//'`
769      if [ "${dir}" = "${ml_dir}" ]; then
770        flags=`echo $i | sed -e 's/^[^;]*;//' -e 's/@/ -/g'`
771        break
772      fi
773    done
774    ml_config_env='CC="${CC_}$flags" CXX="${CXX_}$flags" GCJ="${GCJ_}$flags"'
775
776    if [ "${with_target_subdir}" = "." ]; then
777        CC_=$CC' '
778        CXX_=$CXX' '
779        GCJ_=$GCJ' '
780    else
781        # Create a regular expression that matches any string as long
782        # as ML_POPDIR.
783        popdir_rx=`echo ${ML_POPDIR} | sed 's,.,.,g'`
784        CC_=
785        for arg in ${CC}; do
786          case $arg in
787          -[BIL]"${ML_POPDIR}"/*)
788            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"`' ' ;;
789          "${ML_POPDIR}"/*)
790            CC_="${CC_}"`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
791          *)
792            CC_="${CC_}${arg} " ;;
793          esac
794        done
795
796        CXX_=
797        for arg in ${CXX}; do
798          case $arg in
799          -[BIL]"${ML_POPDIR}"/*)
800            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"`' ' ;;
801          "${ML_POPDIR}"/*)
802            CXX_="${CXX_}"`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
803          *)
804            CXX_="${CXX_}${arg} " ;;
805          esac
806        done
807
808        GCJ_=
809        for arg in ${GCJ}; do
810          case $arg in
811          -[BIL]"${ML_POPDIR}"/*)
812            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"`' ' ;;
813          "${ML_POPDIR}"/*)
814            GCJ_="${GCJ_}"`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
815          *)
816            GCJ_="${GCJ_}${arg} " ;;
817          esac
818        done
819
820        if test "x${LD_LIBRARY_PATH+set}" = xset; then
821          LD_LIBRARY_PATH_=
822          for arg in `echo "$LD_LIBRARY_PATH" | tr ':' ' '`; do
823            case "$arg" in
824            "${ML_POPDIR}"/*)
825              arg=`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`
826              ;;
827            esac
828            if test "x$LD_LIBRARY_PATH_" != x; then
829              LD_LIBRARY_PATH_=$LD_LIBRARY_PATH_:$arg
830            else
831              LD_LIBRARY_PATH_=$arg
832            fi
833          done
834          ml_config_env="$ml_config_env LD_LIBRARY_PATH=$LD_LIBRARY_PATH_"
835        fi
836
837        if test "x${SHLIB_PATH+set}" = xset; then
838          SHLIB_PATH_=
839          for arg in `echo "$SHLIB_PATH" | tr ':' ' '`; do
840            case "$arg" in
841            "${ML_POPDIR}"/*)
842              arg=`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`
843              ;;
844            esac
845            if test "x$SHLIB_PATH_" != x; then
846              SHLIB_PATH_=$SHLIB_PATH_:$arg
847            else
848              SHLIB_PATH_=$arg
849            fi
850          done
851          ml_config_env="$ml_config_env SHLIB_PATH=$SHLIB_PATH_"
852        fi
853    fi
854
855    if eval ${ml_config_env} ${ml_config_shell} ${ml_recprog} \
856        --with-multisubdir=${ml_dir} --with-multisrctop=${multisrctop} \
857        ${ml_arguments} ${ml_srcdiroption} ; then
858      true
859    else
860      exit 1
861    fi
862
863    cd ${ML_POPDIR}
864
865  done
866
867  cd ${ml_origdir}
868fi
869
870fi # ${ml_toplevel_p} = yes
871fi # ${enable_multilib} = yes
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