1#### This script is meant to be sourced by ltconfig.
2
3# ltcf-cxx.sh - Create a C++ compiler specific configuration
4#
5# Copyright (C) 1996-1999, 2000, 2001, 2003 Free Software Foundation, Inc.
6# Originally by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996
7#
8# Original C++ support by:Gary V. Vaughan <gvv@techie.com>
9#    Alexandre Oliva <oliva@lsd.ic.unicamp.br>
10#    Ossama Othman <ossama@debian.org>
11#    Thomas Thanner <tanner@gmx.de>
12#
13# This file is free software; you can redistribute it and/or modify it
14# under the terms of the GNU General Public License as published by
15# the Free Software Foundation; either version 2 of the License, or
16# (at your option) any later version.
17#
18# This program is distributed in the hope that it will be useful, but
19# WITHOUT ANY WARRANTY; without even the implied warranty of
20# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
21# General Public License for more details.
22#
23# You should have received a copy of the GNU General Public License
24# along with this program; if not, write to the Free Software
25# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
26#
27# As a special exception to the GNU General Public License, if you
28# distribute this file as part of a program that contains a
29# configuration script generated by Autoconf, you may include it under
30# the same distribution terms that you use for the rest of that program.
31
32
33# Source file extension for C++ test sources.
34ac_ext=cc
35
36# Object file extension for compiled C++ test sources.
37objext=o
38
39# Code to be used in simple compile tests
40lt_simple_compile_test_code="int some_variable = 0;"
41
42# Code to be used in simple link tests
43lt_simple_link_test_code='int main(int, char *[]) { return (0); }'
44
45# C++ compiler
46CXX=${CXX-c++}
47
48# ltmain only uses $CC for tagged configurations so make sure $CC is set.
49CC=${CC-"$CXX"}
50CFLAGS=${CFLAGS-"$CXXFLAGS"}
51
52# Allow CC to be a program name with arguments.
53set dummy $CC
54compiler=$2
55cc_basename=`$echo X"$compiler" | $Xsed -e 's%^.*/%%'`
56
57# Check if we are using GNU gcc  (taken/adapted from configure script)
58# We need to check here since "--with-gcc" is set at configure time,
59# not ltconfig time!
60cat > conftest.$ac_ext <<EOF
61#ifdef __GNUC__
62  yes;
63#endif
64EOF
65if { ac_try='${CC-c++} -E conftest.$ac_ext'; { (eval echo \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
66  with_gcc=yes
67
68  # Set up default GNU C++ configuration
69
70  # Check if GNU C++ uses GNU ld as the underlying linker, since the
71  # archiving commands below assume that GNU ld is being used.  The
72  # assumption here is that the linker is going to be the same as that
73  # used by the C compiler.  For the purposes of GCC, this is ok, but
74  # if someone uses g++ along with a non-GNU C compiler that doesn't
75  # use GNU ld, we may lose.  This is ok for the toolchain tree, since
76  # the only users of ltcf-cxx.sh are libstdc++-v3 and libjava,
77  # anyway, and those use both gcc and g++, so the settings are bound
78  # to be the same.
79
80  if test "$with_gnu_ld" = yes; then
81    archive_cmds='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
82    archive_expsym_cmds='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
83
84    hardcode_libdir_flag_spec='${wl}--rpath ${wl}$libdir'
85    export_dynamic_flag_spec='${wl}--export-dynamic'
86
87    # If archive_cmds runs LD, not CC, wlarc should be empty
88    # XXX I think wlarc can be eliminated in ltcf-cxx, but I need to
89    #     investigate it a little bit more. (MM)
90    wlarc='${wl}'
91
92    # ancient GNU ld didn't support --whole-archive et. al.
93    if eval "`$CC -print-prog-name=ld` --help 2>&1" | \
94        egrep 'no-whole-archive' > /dev/null; then
95      whole_archive_flag_spec="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
96    else
97      whole_archive_flag_spec=
98    fi
99  else
100    wlarc=
101
102    # A generic and very simple default shared library creation
103    # command for GNU C++ for the case where it uses the native
104    # linker, instead of GNU ld.  If possible, this setting should
105    # overridden to take advantage of the native linker features on
106    # the platform it is being used on.
107    archive_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib'
108  fi
109
110  # Commands to make compiler produce verbose output that lists
111  # what "hidden" libraries, object files and flags are used when
112  # linking a shared library.
113  output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | egrep "\-L"'
114
115else
116  with_gcc=no
117  wlarc=
118fi
119
120# PORTME: fill in a description of your system's C++ link characteristics
121case $host_os in
122  aix3*)
123    # FIXME: insert proper C++ library support
124    ld_shlibs=no
125    ;;
126  aix4* | aix5*)
127    archive_cmds=''
128    hardcode_direct=yes
129    hardcode_libdir_separator=':'
130    link_all_deplibs=yes
131    file_list_spec='${wl}-f,'
132    # When large executables or shared objects are built, AIX ld can
133    # have problems creating the table of contents.  If linking a library
134    # or program results in "error TOC overflow" add -mminimal-toc to
135    # CXXFLAGS/CFLAGS for g++/gcc.  In the cases where that is not
136    # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
137    if test "$with_gcc" = yes; then
138      case $host_os in aix4.[012]|aix4.[012].*)
139      # We only want to do this on AIX 4.2 and lower, the check
140      # below for broken collect2 doesn't work under 4.3+
141        collect2name=`${CC} -print-prog-name=collect2`
142        if test -f "$collect2name" && \
143	   strings "$collect2name" | grep resolve_lib_name >/dev/null
144        then
145	  # We have reworked collect2
146	  hardcode_direct=yes
147        else
148	  # We have old collect2
149	  hardcode_direct=unsupported
150	  # It fails to find uninstalled libraries when the uninstalled
151	  # path is not listed in the libpath.  Setting hardcode_minus_L
152	  # to unsupported forces relinking
153	  hardcode_minus_L=yes
154	  hardcode_libdir_flag_spec='-L$libdir'
155	  hardcode_libdir_separator=
156        fi
157      esac
158      shared_flag='-shared'
159    else
160      # not using gcc
161      if test "$host_cpu" = ia64; then
162        shared_flag='${wl}-G'
163      else
164        shared_flag='${wl}-bM:SRE'
165      fi
166    fi
167
168    if test "$host_cpu" = ia64; then
169      # On IA64, the linker does run time linking by default, so we don't
170      # have to do anything special.
171      aix_use_runtimelinking=no
172      if test $with_gnu_ld = no; then
173        exp_sym_flag='-Bexport'
174        no_entry_flag=""
175      fi
176    else
177      # Test if we are trying to use run time linking, or normal AIX style linking.
178      # If -brtl is somewhere in LDFLAGS, we need to do run time linking.
179      aix_use_runtimelinking=no
180      for ld_flag in $LDFLAGS; do
181        if (test $ld_flag = "-brtl" || test $ld_flag = "-Wl,-brtl" ); then
182          aix_use_runtimelinking=yes
183          break
184        fi
185      done
186      exp_sym_flag='-bexport'
187      no_entry_flag='-bnoentry'
188    fi
189    # It seems that -bexpall does not export symbols beginning with
190    # underscore (_), so it is better to generate a list of symbols to export.
191    always_export_symbols=yes
192    if test "$aix_use_runtimelinking" = yes; then
193      hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:/usr/lib:/lib'
194      allow_undefined_flag=' -Wl,-G'
195      archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${allow_undefined_flag} '"\${wl}$no_entry_flag \${wl}-brtl \${wl}$exp_sym_flag:\$export_symbols"
196     else
197      if test "$host_cpu" = ia64; then
198        if test $with_gnu_ld = no; then
199          hardcode_libdir_flag_spec='${wl}-R $libdir:/usr/lib:/lib'
200          allow_undefined_flag="-z nodefs"
201          archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${wl}${allow_undefined_flag} '"\${wl}$no_entry_flag \${wl}$exp_sym_flag:\$export_symbols"
202        fi
203      else
204        hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:/usr/lib:/lib'
205        # Warning - without using the other run time loading flags, -berok will
206        #           link without error, but may produce a broken library.
207        no_undefined_flag=' ${wl}-bnoerok'
208        allow_undefined_flag=' ${wl}-berok'
209        # -bexpall does not export symbols beginning with underscore (_)
210        always_export_symbols=yes
211        # Exported symbols can be pulled into shared objects from archives
212        whole_archive_flag_spec=' '
213        build_libtool_need_lc=yes
214        # This is similar to how AIX traditionally builds it's shared libraries.
215        archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${wl}-bE:$export_symbols ${wl}-bnoentry${allow_undefined_flag}~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$soname'
216      fi
217    fi
218    ;;
219  chorus*)
220    case $cc_basename in
221      *)
222        # FIXME: insert proper C++ library support
223        ld_shlibs=no
224        ;;
225    esac
226    ;;
227
228  darwin* | rhapsody*)
229    case "$host_os" in
230	rhapsody* | darwin1.[[012]])
231	    allow_undefined_flag='-undefined suppress'
232	;;
233	*) # Darwin 1.3 on
234	    if test -z ${MACOSX_DEPLOYMENT_TARGET} ; then
235		allow_undefined_flag='-flat_namespace -undefined suppress'
236      else
237	case ${MACOSX_DEPLOYMENT_TARGET} in
238	    10.[[012]])
239		allow_undefined_flag='-flat_namespace -undefined suppress'
240	    ;;
241	    10.*)
242		allow_undefined_flag='-undefined dynamic_lookup'
243	    ;;
244	esac
245    fi
246    ;;
247    esac
248    # Disable shared library build on OS-X older than 10.3.
249    case $host_os in
250	darwin[1-6]*)
251	    can_build_shared=no
252	    ;;
253	darwin7*)
254	    can_build_shared=yes
255	    ;;
256    esac
257    output_verbose_link_cmd='echo'
258
259    archive_cmds='$CXX -dynamiclib $allow_undefined_flag -o $lib $libobjs $deplibs $compiler_flags -install_name $rpath/$soname $verstring'
260    module_cmds='$CC ${wl}-bind_at_load $allow_undefined_flag -o $lib -bundle $libobjs $deplibs$compiler_flags'
261
262    # Don't fix this by using the ld -exported_symbols_list flag,
263    # it doesn't exist in older darwin ld's
264    archive_expsym_cmds='sed -e "s,#.*,," -e "s,^[    ]*,," -e "s,^\(..*\),_&," < $export_symbols > $output_objdir/${libname}-symbols.expsym~$CC -r ${wl}-bind_at_load -keep_private_externs -nostdlib -o ${lib}-master.o $libobjs~$CC -dynamiclib $allow_undefined_flag -o $lib ${lib}-master.o $deplibs $compiler_flags -install_name $rpath/$soname $verstring~nmedit -s $output_objdir/${libname}-symbols.expsym ${lib}'
265    module_expsym_cmds='sed -e "s,#.*,," -e "s,^[    ]*,," -e "s,^\(..*\),_&," < $export_symbols > $output_objdir/${libname}-symbols.expsym~$CC $allow_undefined_flag  -o $lib -bundle $libobjs $deplibs$compiler_flags~nmedit -s $output_objdir/${libname}-symbols.expsym ${lib}'
266    hardcode_direct=no
267    hardcode_automatic=yes
268    hardcode_shlibpath_var=unsupported
269    link_all_deplibs=yes
270    ;;
271
272  dgux*)
273    case $cc_basename in
274      ec++)
275        # FIXME: insert proper C++ library support
276        ld_shlibs=no
277        ;;
278      ghcx)
279        # Green Hills C++ Compiler
280        # FIXME: insert proper C++ library support
281        ld_shlibs=no
282        ;;
283      *)
284        # FIXME: insert proper C++ library support
285        ld_shlibs=no
286        ;;
287    esac
288    ;;
289  freebsd[12]*)
290    # C++ shared libraries reported to be fairly broken before switch to ELF
291    ld_shlibs=no
292    ;;
293  freebsd* | kfreebsd*-gnu)
294    # FreeBSD 3 and later use GNU C++ and GNU ld with standard ELF
295    # conventions
296    ld_shlibs=yes
297    ;;
298  gnu*)
299    ;;
300  hpux*)
301    if test $with_gnu_ld = no; then
302      case "$host_cpu" in
303	ia64*)
304	  hardcode_libdir_flag_spec='-L$libdir'
305	  hardcode_shlibpath_var=no ;;
306	*)
307	  hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir' ;;
308      esac
309      hardcode_direct=yes
310      hardcode_libdir_separator=:
311      export_dynamic_flag_spec='${wl}-E'
312    fi
313    hardcode_minus_L=yes # Not in the search PATH, but as the default
314			 # location of the library.
315
316    case $cc_basename in
317      CC)
318        # FIXME: insert proper C++ library support
319        ld_shlibs=no
320        ;;
321      aCC)
322	case $host_os in
323	hpux9*) archive_cmds='$rm $output_objdir/$soname~$CC -b ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib' ;;
324	*) archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' ;;
325	esac
326        # Commands to make compiler produce verbose output that lists
327        # what "hidden" libraries, object files and flags are used when
328        # linking a shared library.
329        #
330        # There doesn't appear to be a way to prevent this compiler from
331        # explicitly linking system object files so we need to strip them
332        # from the output so that they don't get included in the library
333        # dependencies.
334        output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | egrep "\-L"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; echo $list'
335        ;;
336      *)
337        if test $with_gcc = yes; then
338	  if test $with_gnu_ld = no; then
339	    case "$host_os" in
340	    hpux9*) archive_cmds='$rm $output_objdir/$soname~$CC -shared -nostdlib -fPIC ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib' ;;
341	    *)
342	      case "$host_cpu" in
343		ia64*)
344		  archive_cmds='$LD -b +h $soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags' ;;
345		*)
346		  archive_cmds='$CC -shared -nostdlib -fPIC ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' ;;
347	      esac
348	      ;;
349	    esac
350	  fi
351	else
352	  # FIXME: insert proper C++ library support
353          ld_shlibs=no
354	fi
355        ;;
356    esac
357    ;;
358  irix5* | irix6*)
359    case $cc_basename in
360      CC)
361        # SGI C++
362        archive_cmds='$CC -shared -all -multigot $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${objdir}/so_locations -o $lib'
363
364	# Archives containing C++ object files must be created using
365	# "CC -ar", where "CC" is the IRIX C++ compiler.  This is
366	# necessary to make sure instantiated templates are included
367	# in the archive.
368	old_archive_cmds='$CC -ar -WR,-u -o $oldlib $oldobjs'
369	;;
370      *)
371        if test "$with_gcc" = yes; then
372          if test "$with_gnu_ld" = no; then
373            archive_cmds='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && echo ${wl}-set_version ${wl}$verstring` ${wl}-update_registry ${wl}${objdir}/so_locations -o $lib'
374          else
375            archive_cmds='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && echo -set_version $verstring` -o $lib'
376          fi
377        fi
378        hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
379        hardcode_libdir_separator=:
380        link_all_deplibs=yes
381        ;;
382    esac
383    ;;
384  linux*)
385    case $cc_basename in
386      KCC)
387        # Kuck and Associates, Inc. (KAI) C++ Compiler
388
389        # KCC will only create a shared library if the output file
390        # ends with ".so" (or ".sl" for HP-UX), so rename the library
391        # to its proper name (with version) after linking.
392        archive_cmds='templib=`echo $lib | sed -e "s/\.so\..*/\.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib'
393        archive_expsym_cmds='templib=`echo $lib | sed -e "s/\.so\..*/\.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib ${wl}-retain-symbols-file,$export_symbols; mv \$templib $lib'
394
395        # Commands to make compiler produce verbose output that lists
396        # what "hidden" libraries, object files and flags are used when
397        # linking a shared library.
398        #
399        # There doesn't appear to be a way to prevent this compiler from
400        # explicitly linking system object files so we need to strip them
401        # from the output so that they don't get included in the library
402        # dependencies.
403        output_verbose_link_cmd='templist=`$CC $CFLAGS -v conftest.$objext -o libconftest.so 2>&1 | egrep "ld"`; rm -f libconftest.so; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; echo $list'
404
405        hardcode_libdir_flag_spec='${wl}--rpath,$libdir'
406        export_dynamic_flag_spec='${wl}--export-dynamic'
407
408	# Archives containing C++ object files must be created using
409	# "CC -Bstatic", where "CC" is the KAI C++ compiler.
410        old_archive_cmds='$CC -Bstatic -o $oldlib $oldobjs'
411        ;;
412      cxx)
413        # Compaq C++
414        archive_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
415        archive_expsym_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname  -o $lib ${wl}-retain-symbols-file $wl$export_symbols'
416
417        runpath_var=LD_RUN_PATH
418        hardcode_libdir_flag_spec='-rpath $libdir'
419        hardcode_libdir_separator=:
420
421        # Commands to make compiler produce verbose output that lists
422        # what "hidden" libraries, object files and flags are used when
423        # linking a shared library.
424        #
425        # There doesn't appear to be a way to prevent this compiler from
426        # explicitly linking system object files so we need to strip them
427        # from the output so that they don't get included in the library
428        # dependencies.
429        output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | grep "ld"`; templist=`echo $templist | sed "s/\(^.*ld.*\)\( .*ld .*$\)/\1/"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; echo $list'
430        ;;
431    esac
432    ;;
433  lynxos*)
434    # FIXME: insert proper C++ library support
435    ld_shlibs=no
436    ;;
437  m88k*)
438    # FIXME: insert proper C++ library support
439    ld_shlibs=no
440    ;;
441  mvs*)
442    case $cc_basename in
443      cxx)
444        # FIXME: insert proper C++ library support
445        ld_shlibs=no
446        ;;
447      *)
448        # FIXME: insert proper C++ library support
449        ld_shlibs=no
450        ;;
451    esac
452    ;;
453  netbsd* | knetbsd*-gnu)
454    # NetBSD uses g++ - do we need to do anything?
455    ;;
456  osf3*)
457    case $cc_basename in
458      KCC)
459        # Kuck and Associates, Inc. (KAI) C++ Compiler
460
461        # KCC will only create a shared library if the output file
462        # ends with ".so" (or ".sl" for HP-UX), so rename the library
463        # to its proper name (with version) after linking.
464        archive_cmds='templib=`echo $lib | sed -e "s/\.so\..*/\.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib'
465
466        hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
467        hardcode_libdir_separator=:
468
469	# Archives containing C++ object files must be created using
470	# "CC -Bstatic", where "CC" is the KAI C++ compiler.
471        old_archive_cmds='$CC -Bstatic -o $oldlib $oldobjs'
472
473        ;;
474      RCC)
475        # Rational C++ 2.4.1
476        # FIXME: insert proper C++ library support
477        ld_shlibs=no
478        ;;
479      cxx)
480        allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
481        archive_cmds='$CC -shared${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $soname `test -n "$verstring" && echo ${wl}-set_version $verstring` -update_registry ${objdir}/so_locations -o $lib'
482
483        hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
484        hardcode_libdir_separator=:
485
486        # Commands to make compiler produce verbose output that lists
487        # what "hidden" libraries, object files and flags are used when
488        # linking a shared library.
489        #
490        # There doesn't appear to be a way to prevent this compiler from
491        # explicitly linking system object files so we need to strip them
492        # from the output so that they don't get included in the library
493        # dependencies.
494        output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | grep "ld" | grep -v "ld:"`; templist=`echo $templist | sed "s/\(^.*ld.*\)\( .*ld.*$\)/\1/"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; echo $list'
495        ;;
496      *)
497	if test "$with_gcc" = yes && test "$with_gnu_ld" = no; then
498	  allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
499	  archive_cmds='$CC -shared -nostdlib ${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && echo ${wl}-set_version ${wl}$verstring` ${wl}-update_registry ${wl}${objdir}/so_locations -o $lib'
500
501	  hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
502	  hardcode_libdir_separator=:
503
504	  # Commands to make compiler produce verbose output that lists
505	  # what "hidden" libraries, object files and flags are used when
506	  # linking a shared library.
507	  output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | egrep "\-L"'
508    else
509          # FIXME: insert proper C++ library support
510          ld_shlibs=no
511    fi
512        ;;
513    esac
514    ;;
515  osf4* | osf5*)
516    case $cc_basename in
517      KCC)
518        # Kuck and Associates, Inc. (KAI) C++ Compiler
519
520        # KCC will only create a shared library if the output file
521        # ends with ".so" (or ".sl" for HP-UX), so rename the library
522        # to its proper name (with version) after linking.
523        archive_cmds='templib=`echo $lib | sed -e "s/\.so\..*/\.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib'
524
525        hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
526        hardcode_libdir_separator=:
527
528	# Archives containing C++ object files must be created using
529	# the KAI C++ compiler.
530        old_archive_cmds='$CC -o $oldlib $oldobjs'
531        ;;
532      RCC)
533        # Rational C++ 2.4.1
534        # FIXME: insert proper C++ library support
535        ld_shlibs=no
536        ;;
537      cxx)
538        allow_undefined_flag=' -expect_unresolved \*'
539        archive_cmds='$CC -shared${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${objdir}/so_locations -o $lib'
540	archive_expsym_cmds='for i in `cat $export_symbols`; do printf "-exported_symbol " >> $lib.exp; echo "\$i" >> $lib.exp; done~
541	  echo "-hidden">> $lib.exp~
542	  $CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname -Wl,-input -Wl,$lib.exp  `test -n "$verstring" && echo -set_version	$verstring` -update_registry $objdir/so_locations -o $lib~
543	  $rm $lib.exp'
544
545        hardcode_libdir_flag_spec='-rpath $libdir'
546        hardcode_libdir_separator=:
547
548        # Commands to make compiler produce verbose output that lists
549        # what "hidden" libraries, object files and flags are used when
550        # linking a shared library.
551        #
552        # There doesn't appear to be a way to prevent this compiler from
553        # explicitly linking system object files so we need to strip them
554        # from the output so that they don't get included in the library
555        # dependencies.
556        output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | grep "ld" | grep -v "ld:"`; templist=`echo $templist | sed "s/\(^.*ld.*\)\( .*ld.*$\)/\1/"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; echo $list'
557        ;;
558      *)
559	if test "$with_gcc" = yes && test "$with_gnu_ld" = no; then
560	  allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
561	  archive_cmds='$CC -shared -nostdlib ${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-msym ${wl}-soname ${wl}$soname `test -n "$verstring" && echo ${wl}-set_version ${wl}$verstring` ${wl}-update_registry ${wl}${objdir}/so_locations -o $lib'
562
563	  hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
564	  hardcode_libdir_separator=:
565
566	  # Commands to make compiler produce verbose output that lists
567	  # what "hidden" libraries, object files and flags are used when
568	  # linking a shared library.
569	  output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | egrep "\-L"'
570    else
571	  # FIXME: insert proper C++ library support
572	  ld_shlibs=no
573    fi
574        ;;
575    esac
576    ;;
577  psos*)
578    # FIXME: insert proper C++ library support
579    ld_shlibs=no
580    ;;
581  sco*)
582    case $cc_basename in
583      CC)
584        # FIXME: insert proper C++ library support
585        ld_shlibs=no
586        ;;
587      *)
588        # FIXME: insert proper C++ library support
589        ld_shlibs=no
590        ;;
591    esac
592    ;;
593  sunos4*)
594    case $cc_basename in
595      CC)
596        # Sun C++ 4.x
597        # FIXME: insert proper C++ library support
598        ld_shlibs=no
599        ;;
600      lcc)
601        # Lucid
602        # FIXME: insert proper C++ library support
603        ld_shlibs=no
604        ;;
605      *)
606        # FIXME: insert proper C++ library support
607        ld_shlibs=no
608        ;;
609    esac
610    ;;
611  solaris*)
612    case $cc_basename in
613      CC)
614	# Sun C++ 4.2, 5.x and Centerline C++
615        no_undefined_flag=' -zdefs'
616        archive_cmds='$CC -G${allow_undefined_flag} -nolib -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
617        archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
618        $CC -G${allow_undefined_flag} -nolib ${wl}-M ${wl}$lib.exp -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$rm $lib.exp'
619
620        hardcode_libdir_flag_spec='-R$libdir'
621        hardcode_shlibpath_var=no
622        case $host_os in
623          solaris2.[0-5] | solaris2.[0-5].*) ;;
624          *)
625            # The C++ compiler is used as linker so we must use $wl
626            # flag to pass the commands to the underlying system
627            # linker.
628            # Supported since Solaris 2.6 (maybe 2.5.1?)
629            whole_archive_flag_spec='${wl}-z ${wl}allextract$convenience ${wl}-z ${wl}defaultextract'
630            ;;
631        esac
632        link_all_deplibs=yes
633
634        # Commands to make compiler produce verbose output that lists
635        # what "hidden" libraries, object files and flags are used when
636        # linking a shared library.
637        #
638        # There doesn't appear to be a way to prevent this compiler from
639        # explicitly linking system object files so we need to strip them
640        # from the output so that they don't get included in the library
641        # dependencies.
642        output_verbose_link_cmd='templist=`$CC -G $CFLAGS -v conftest.$objext 2>&1 | egrep "\-R|\-L"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; echo $list'
643
644	# Archives containing C++ object files must be created using
645	# "CC -xar", where "CC" is the Sun C++ compiler.  This is
646        # necessary to make sure instantiated templates are included
647        # in the archive.
648        old_archive_cmds='$CC -xar -o $oldlib $oldobjs'
649        ;;
650      gcx)
651        # Green Hills C++ Compiler
652        archive_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'
653
654        # The C++ compiler must be used to create the archive.
655        old_archive_cmds='$CC $LDFLAGS -archive -o $oldlib $oldobjs'
656        ;;
657      *)
658        # GNU C++ compiler with Solaris linker
659        if test "$with_gcc" = yes && test "$with_gnu_ld" = no; then
660	  no_undefined_flag=' ${wl}-z ${wl}defs'
661          if $CC --version | egrep -v '^2\.7' > /dev/null; then
662            archive_cmds='$CC -shared -nostdlib $LDFLAGS $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'
663            archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
664		$CC -shared -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$rm $lib.exp'
665
666            # Commands to make compiler produce verbose output that lists
667            # what "hidden" libraries, object files and flags are used when
668            # linking a shared library.
669            output_verbose_link_cmd="$CC -shared $CFLAGS -v conftest.$objext 2>&1 | egrep \"\-L\""
670          else
671            # g++ 2.7 appears to require `-G' NOT `-shared' on this
672            # platform.
673            archive_cmds='$CC -G -nostdlib $LDFLAGS $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'
674            archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
675		$CC -G -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$rm $lib.exp'
676
677            # Commands to make compiler produce verbose output that lists
678            # what "hidden" libraries, object files and flags are used when
679            # linking a shared library.
680            output_verbose_link_cmd="$CC -G $CFLAGS -v conftest.$objext 2>&1 | egrep \"\-L\""
681          fi
682
683          hardcode_libdir_flag_spec='${wl}-R $wl$libdir'
684        fi
685        ;;
686    esac
687    ;;
688  tandem*)
689    case $cc_basename in
690      NCC)
691        # NonStop-UX NCC 3.20
692        # FIXME: insert proper C++ library support
693        ld_shlibs=no
694        ;;
695      *)
696        # FIXME: insert proper C++ library support
697        ld_shlibs=no
698        ;;
699    esac
700    ;;
701  tpf*)
702    ld_shlibs=yes
703    ;;
704  unixware*)
705    # FIXME: insert proper C++ library support
706    ld_shlibs=no
707    ;;
708  vxworks*)
709    # FIXME: insert proper C++ library support
710    ld_shlibs=no
711    ;;
712  *)
713    # FIXME: insert proper C++ library support
714    ld_shlibs=no
715    ;;
716esac
717
718
719## Compiler Characteristics: PIC flags, static flags, etc
720
721# We don't use cached values here since only the C compiler
722# characteristics should be cached.
723ac_cv_prog_cc_pic=
724ac_cv_prog_cc_shlib=
725ac_cv_prog_cc_wl=
726ac_cv_prog_cc_static=
727ac_cv_prog_cc_no_builtin=
728ac_cv_prog_cc_can_build_shared=$can_build_shared
729
730ac_cv_prog_cc_pic_works=
731ac_cv_prog_cc_static_works=
732
733if test "$with_gcc" = yes; then
734  ac_cv_prog_cc_wl='-Wl,'
735  ac_cv_prog_cc_static='-static'
736
737  case $host_os in
738  aix*)
739    # All AIX code is PIC.
740    if test "$host_cpu" = ia64; then
741      # AIX 5 now supports IA64 processor
742      lt_cv_prog_cc_static='-Bstatic'
743    else
744      lt_cv_prog_cc_static='-bnso -bI:/lib/syscalls.exp'
745    fi
746    ;;
747  amigaos*)
748    # FIXME: we need at least 68020 code to build shared libraries, but
749    # adding the `-m68020' flag to GCC prevents building anything better,
750    # like `-m68040'.
751    ac_cv_prog_cc_pic='-m68020 -resident32 -malways-restore-a4'
752    ;;
753  beos* | irix5* | irix6* | osf3* | osf4* | osf5*)
754    # PIC is the default for these OSes.
755    ;;
756  cygwin* | mingw* | os2*)
757    # This hack is so that the source file can tell whether it is being
758    # built for inclusion in a dll (and should export symbols for example).
759    ac_cv_prog_cc_pic='-DDLL_EXPORT'
760    ;;
761  darwin* | rhapsody*)
762    # PIC is the default on this platform
763    # Common symbols not allowed in MH_DYLIB files
764    ac_cv_prog_cc_pic='-fno-common'
765    ;;
766  *djgpp*)
767    # DJGPP does not support shared libraries at all
768    ac_cv_prog_cc_pic=
769    ;;
770  sysv4*MP*)
771    if test -d /usr/nec; then
772      ac_cv_prog_cc_pic=-Kconform_pic
773    fi
774    ;;
775  *)
776    ac_cv_prog_cc_pic='-fPIC'
777    ;;
778  esac
779else
780  case $host_os in
781    aix4* | aix5*)
782      # All AIX code is PIC.
783      if test "$host_cpu" = ia64; then
784        # AIX 5 now supports IA64 processor
785        lt_cv_prog_cc_static='-Bstatic'
786      else
787        lt_cv_prog_cc_static='-bnso -bI:/lib/syscalls.exp'
788      fi
789      ;;
790    chorus*)
791      case $cc_basename in
792      cxch68)
793        # Green Hills C++ Compiler
794        # ac_cv_prog_cc_static="--no_auto_instantiation -u __main -u __premain -u _abort -r $COOL_DIR/lib/libOrb.a $MVME_DIR/lib/CC/libC.a $MVME_DIR/lib/classix/libcx.s.a"
795        ;;
796      esac
797      ;;
798    dgux*)
799      case $cc_basename in
800        ec++)
801          ac_cv_prog_cc_pic='-KPIC'
802          ;;
803        ghcx)
804          # Green Hills C++ Compiler
805          ac_cv_prog_cc_pic='-pic'
806          ;;
807        *)
808          ;;
809      esac
810      ;;
811    freebsd* | kfreebsd*-gnu)
812      # FreeBSD uses GNU C++
813      ;;
814    gnu*)
815      ;;
816    hpux9* | hpux10* | hpux11*)
817      case $cc_basename in
818        CC)
819          ac_cv_prog_cc_wl='-Wl,'
820          ac_cv_prog_cc_static="${ac_cv_prog_cc_wl}-a ${ac_cv_prog_cc_wl}archive"
821          ac_cv_prog_cc_pic='+Z'
822          ;;
823        aCC)
824          ac_cv_prog_cc_wl='-Wl,'
825          ac_cv_prog_cc_static="${ac_cv_prog_cc_wl}-a ${ac_cv_prog_cc_wl}archive"
826          ac_cv_prog_cc_pic='+Z'
827          ;;
828        *)
829          ;;
830      esac
831      ;;
832    irix5* | irix6*)
833      case $cc_basename in
834        CC)
835          ac_cv_prog_cc_wl='-Wl,'
836          ac_cv_prog_cc_static='-non_shared'
837          ac_cv_prog_cc_pic='-KPIC'
838          ;;
839        *)
840          ;;
841      esac
842      ;;
843    linux*)
844      case $cc_basename in
845        KCC)
846          # KAI C++ Compiler
847          ac_cv_prog_cc_wl='--backend -Wl,'
848          ac_cv_prog_cc_pic='-fPIC'
849          ;;
850        cxx)
851          # Compaq C++
852          # Make sure the PIC flag is empty.  It appears that all Alpha
853          # Linux and Compaq Tru64 Unix objects are PIC.
854          ac_cv_prog_cc_pic=
855          ac_cv_prog_cc_static='-non_shared'
856          ;;
857        *)
858          ;;
859      esac
860      ;;
861    lynxos*)
862      ;;
863    m88k*)
864      ;;
865    mvs*)
866      case $cc_basename in
867        cxx)
868          ac_cv_prog_cc_pic='-W c,exportall'
869          ;;
870        *)
871          ;;
872      esac
873      ;;
874    netbsd*)
875      ;;
876    osf3* | osf4* | osf5*)
877      case $cc_basename in
878        KCC)
879          ac_cv_prog_cc_wl='--backend -Wl,'
880          ;;
881        RCC)
882          # Rational C++ 2.4.1
883          ac_cv_prog_cc_pic='-pic'
884          ;;
885        cxx)
886          # Digital/Compaq C++
887          ac_cv_prog_cc_wl='-Wl,'
888          # Make sure the PIC flag is empty.  It appears that all Alpha
889          # Linux and Compaq Tru64 Unix objects are PIC.
890          ac_cv_prog_cc_pic=
891          ac_cv_prog_cc_static='-non_shared'
892          ;;
893        *)
894          ;;
895      esac
896      ;;
897    psos*)
898      ;;
899    sco*)
900      case $cc_basename in
901        CC)
902          ac_cv_prog_cc_pic='-fPIC'
903          ;;
904        *)
905          ;;
906      esac
907      ;;
908    solaris*)
909      case $cc_basename in
910        CC)
911          # Sun C++ 4.2, 5.x and Centerline C++
912          ac_cv_prog_cc_pic='-KPIC'
913          ac_cv_prog_cc_static='-Bstatic'
914          ac_cv_prog_cc_wl='-Qoption ld '
915          ;;
916        gcx)
917          # Green Hills C++ Compiler
918          ac_cv_prog_cc_pic='-PIC'
919          ;;
920        *)
921          ;;
922      esac
923      ;;
924    sunos4*)
925      case $cc_basename in
926        CC)
927          # Sun C++ 4.x
928          ac_cv_prog_cc_pic='-pic'
929          ac_cv_prog_cc_static='-Bstatic'
930          ;;
931        lcc)
932          # Lucid
933          ac_cv_prog_cc_pic='-pic'
934          ;;
935        *)
936          ;;
937      esac
938      ;;
939    tandem*)
940      case $cc_basename in
941        NCC)
942          # NonStop-UX NCC 3.20
943          ac_cv_prog_cc_pic='-KPIC'
944          ;;
945        *)
946          ;;
947      esac
948      ;;
949    unixware*)
950      ;;
951    vxworks*)
952      ;;
953    *)
954      ac_cv_prog_cc_can_build_shared=no
955      ;;
956  esac
957fi
958
959case "$host_os" in
960    # Platforms which do not suport PIC and -DPIC is meaningless
961    # on them:
962    *djgpp*)
963      ac_cv_prog_cc_pic=
964      ;;
965    *)
966      ac_cv_prog_cc_pic="$ac_cv_prog_cc_pic -DPIC"
967      ;;
968esac
969
970
971# Figure out "hidden" C++ library dependencies from verbose
972# compiler output whening linking a shared library.
973cat > conftest.$ac_ext <<EOF
974class Foo
975{
976public:
977  Foo (void) { a = 0; }
978private:
979  int a;
980};
981EOF
982
983
984if (eval $ac_compile) 2>&5; then
985  # Parse the compiler output and extract the necessary
986  # objects, libraries and library flags.
987
988  # Sentinel used to keep track of whether or not we are before
989  # the conftest object file.
990  pre_test_object_deps_done=no
991
992  for p in `eval $output_verbose_link_cmd`; do
993
994    case $p in
995
996    -L* | -R* | -l*)
997       # Some compilers place space between "-{L,R}" and the path.
998       # Remove the space.
999       if test $p = "-L" \
1000          || test $p = "-R"; then
1001         prev=$p
1002         continue
1003       else
1004         prev=
1005       fi
1006
1007       if test "$pre_test_object_deps_done" = no; then
1008         case $p in
1009	 -L* | -R*)
1010	   # Internal compiler library paths should come after those
1011	   # provided the user.  The postdeps already come after the
1012	   # user supplied libs so there is no need to process them.
1013           if test -z "$compiler_lib_search_path"; then
1014             compiler_lib_search_path="${prev}${p}"
1015           else
1016             compiler_lib_search_path="${compiler_lib_search_path} ${prev}${p}"
1017           fi
1018           ;;
1019         # The "-l" case would never come before the object being
1020         # linked, so don't bother handling this case.
1021         esac
1022       else
1023         if test -z "$postdeps"; then
1024           postdeps="${prev}${p}"
1025         else
1026           postdeps="${postdeps} ${prev}${p}"
1027         fi
1028       fi
1029       ;;
1030
1031    *.$objext)
1032       # This assumes that the test object file only shows up
1033       # once in the compiler output.
1034       if test "$p" = "conftest.$objext"; then
1035         pre_test_object_deps_done=yes
1036         continue
1037       fi
1038
1039       if test "$pre_test_object_deps_done" = no; then
1040         if test -z "$predep_objects"; then
1041           predep_objects="$p"
1042         else
1043           predep_objects="$predep_objects $p"
1044         fi
1045       else
1046         if test -z "$postdep_objects"; then
1047           postdep_objects="$p"
1048         else
1049           postdep_objects="$postdep_objects $p"
1050         fi
1051       fi
1052       ;;
1053
1054    *) ;; # Ignore the rest.
1055
1056    esac
1057  done
1058
1059  # Clean up.
1060  rm -f a.out
1061else
1062  echo "ltcf-cxx.sh: error: problem compiling test program"
1063fi
1064
1065$rm -f confest.$objext
1066
1067case " $postdeps " in
1068*" -lc "*) need_lc=no ;;
1069*) need_lc=yes ;;
1070esac
1071