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3 paul 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 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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.
34
ac_ext=cc
35
 
36
# Object file extension for compiled C++ test sources.
37
objext=o
38
 
39
# Code to be used in simple compile tests
40
lt_simple_compile_test_code="int some_variable = 0;"
41
 
42
# Code to be used in simple link tests
43
lt_simple_link_test_code='int main(int, char *[]) { return (0); }'
44
 
45
# C++ compiler
46
CXX=${CXX-c++}
47
 
48
# ltmain only uses $CC for tagged configurations so make sure $CC is set.
49
CC=${CC-"$CXX"}
50
CFLAGS=${CFLAGS-"$CXXFLAGS"}
51
 
52
# Allow CC (or CXX) to be a program name with arguments.
53
set dummy $CC
54
compiler=$2
55
cc_basename=`$echo X"$compiler" | $Xsed -e 's%^.*/%%'`
56
 
57
# we are optimistic. (Too optimistic if you ask me, down there we switch it
58
# off again for most platforms ;) (MM)
59
ld_shlibs=yes
60
 
61
# Check if we are using GNU gcc  (taken/adapted from configure script)
62
# We need to check here since "--with-gcc" is set at configure time,
63
# not ltconfig time!
64
cat > conftest.$ac_ext <<EOF
65
#ifdef __GNUC__
66
  yes;
67
#endif
68
EOF
69
if { ac_try='${CC-c++} -E conftest.$ac_ext'; { (eval echo \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
70
  with_gcc=yes
71
 
72
  # Set up default GNU C++ configuration
73
 
74
  # Check if GNU C++ uses GNU ld as the underlying linker, since the
75
  # archiving commands below assume that GNU ld is being used.
76
  if eval "`$CC -print-prog-name=ld` --version 2>&1" | \
77
      egrep 'GNU ld' > /dev/null; then
78
    with_gnu_ld=yes
79
 
80
    archive_cmds='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
81
    archive_expsym_cmds='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
82
 
83
    runpath_var=LD_RUN_PATH
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
    with_gnu_ld=no
101
    wlarc=
102
 
103
    # A generic and very simple default shared library creation
104
    # command for GNU C++ for the case where it uses the native
105
    # linker, instead of GNU ld.  If possible, this setting should
106
    # overridden to take advantage of the native linker features on
107
    # the platform it is being used on.
108
    archive_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib'
109
  fi
110
 
111
  # Commands to make compiler produce verbose output that lists
112
  # what "hidden" libraries, object files and flags are used when
113
  # linking a shared library.
114
  output_verbose_link_cmds='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | egrep "\-L"'
115
 
116
else
117
  with_gcc=no
118
  with_gnu_ld=no
119
  wlarc=
120
fi
121
 
122
echo "ltcf-cxx: with_gcc=$with_gcc ; with_gnu_ld=$with_gnu_ld"
123
 
124
# PORTME: fill in a description of your system's C++ link characteristics
125
case $host_os in
126
  aix3*)
127
    # FIXME: insert proper C++ library support
128
    ld_shlibs=no
129
    ;;
130
  aix4* | aix5*)
131
    archive_cmds=''
132
    hardcode_direct=yes
133
    hardcode_libdir_separator=':'
134
    link_all_deplibs=yes
135
    # When large executables or shared objects are built, AIX ld can
136
    # have problems creating the table of contents.  If linking a library
137
    # or program results in "error TOC overflow" add -mminimal-toc to
138
    # CXXFLAGS/CFLAGS for g++/gcc.  In the cases where that is not
139
    # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
140
    if test "$with_gcc" = yes; then
141
      case $host_os in aix4.[012]|aix4.[012].*)
142
      # We only want to do this on AIX 4.2 and lower, the check
143
      # below for broken collect2 doesn't work under 4.3+
144
        collect2name=`${CC} -print-prog-name=collect2`
145
        if test -f "$collect2name" && \
146
           strings "$collect2name" | grep resolve_lib_name >/dev/null
147
        then
148
          # We have reworked collect2
149
          hardcode_direct=yes
150
        else
151
          # We have old collect2
152
          hardcode_direct=unsupported
153
          # It fails to find uninstalled libraries when the uninstalled
154
          # path is not listed in the libpath.  Setting hardcode_minus_L
155
          # to unsupported forces relinking
156
          hardcode_minus_L=yes
157
          hardcode_libdir_flag_spec='-L$libdir'
158
          hardcode_libdir_separator=
159
        fi
160
      esac
161
      shared_flag='-shared'
162
    else
163
      # not using gcc
164
      if test "$host_cpu" = ia64; then
165
        shared_flag='${wl}-G'
166
      else
167
        shared_flag='-qmkshrobj'
168
      fi
169
    fi
170
 
171
    if test "$host_cpu" = ia64; then
172
      # On IA64, the linker does run time linking by default, so we don't
173
      # have to do anything special.
174
      aix_use_runtimelinking=no
175
      exp_sym_flag='-Bexport'
176
      no_entry_flag=""
177
    else
178
      # KDE requires run time linking.  Make it the default.
179
      aix_use_runtimelinking=yes
180
      exp_sym_flag='-bexport'
181
      no_entry_flag='-bnoentry'
182
    fi
183
    # Let the compiler handle the export list.
184
    always_export_symbols=no
185
    if test "$aix_use_runtimelinking" = yes; then
186
      allow_undefined_flag=' ${wl}-berok'
187
      # The following three lines along with hardcode_into_libs=yes put the correct path into libraries.
188
      hardcode_libdir_flag_spec='${wl}-blibpath:$libdir${libdir:+:}/usr/lib:/lib'
189
      archive_cmds='$CC '"$shared_flag"' $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-G '"$hardcode_libdir_flag_spec"' -o $lib'
190
      archive_expsym_cmds='$CC '"$shared_flag"' $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-G '"$hardcode_libdir_flag_spec"' ${wl}'"$exp_sym_flag"':$export_symbols -o $lib'
191
     else
192
      if test "$host_cpu" = ia64; then
193
        hardcode_libdir_flag_spec='${wl}-R $libdir${libdir:+:}/usr/lib:/lib'
194
        allow_undefined_flag="-z nodefs"
195
        archive_cmds='$CC '"$shared_flag"' $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags '"$hardcode_libdir_flag_spec"' -o $lib'
196
        archive_expsym_cmds='$CC '"$shared_flag"' $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags '"$hardcode_libdir_flag_spec"' ${wl}'"$exp_sym_flag"':$export_symbols -o $lib'
197
      else
198
        hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:/usr/lib:/lib'
199
        # Warning - without using the other run time loading flags, -berok will
200
        #           link without error, but may produce a broken library.
201
        no_undefined_flag='${wl}-bnoerok'
202
        allow_undefined_flag='${wl}-berok"
203
        # -bexpall does not export symbols beginning with underscore (_)
204
        always_export_symbols=yes
205
        # Exported symbols can be pulled into shared objects from archives
206
        whole_archive_flag_spec=' '
207
        build_libtool_need_lc=yes
208
        # This is similar to how AIX traditionally builds it's shared libraries.
209
        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'
210
      fi
211
    fi
212
    ;;
213
  chorus*)
214
    case $cc_basename in
215
      *)
216
        # FIXME: insert proper C++ library support
217
        ld_shlibs=no
218
        ;;
219
    esac
220
    ;;
221
  dgux*)
222
    case $cc_basename in
223
      ec++)
224
        # FIXME: insert proper C++ library support
225
        ld_shlibs=no
226
        ;;
227
      ghcx)
228
        # Green Hills C++ Compiler
229
        # FIXME: insert proper C++ library support
230
        ld_shlibs=no
231
        ;;
232
      *)
233
        # FIXME: insert proper C++ library support
234
        ld_shlibs=no
235
        ;;
236
    esac
237
    ;;
238
  freebsd*)
239
    # FreeBSD uses GNU C++ and GNU ld
240
    skip_need_lc_check=yes
241
    remove_lgcc=yes
242
    ;;
243
  hpux*)
244
    hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
245
    hardcode_libdir_separator=:
246
    hardcode_direct=yes
247
    hardcode_minus_L=yes # Not in the search PATH, but as the default
248
                         # location of the library.
249
    export_dynamic_flag_spec='${wl}-E'
250
 
251
    case $cc_basename in
252
      CC)
253
        # FIXME: insert proper C++ library support
254
        ld_shlibs=no
255
        ;;
256
      aCC)
257
        case $host_os in
258
        hpux9*) archive_cmds='$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 $lib' ;;
259
        *) archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' ;;
260
        esac
261
        # Commands to make compiler produce verbose output that lists
262
        # what "hidden" libraries, object files and flags are used when
263
        # linking a shared library.
264
        #
265
        # There doesn't appear to be a way to prevent this compiler from
266
        # explicitly linking system object files so we need to strip them
267
        # from the output so that they don't get included in the library
268
        # dependencies.
269
        output_verbose_link_cmds='templist=`($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 $list'
270
        ;;
271
      *)
272
        if test "$with_gcc" = yes && test "$with_gnu_ld" = no ; then
273
          # MM: for HP-UX and g++ -fPIC is needed to link pic objects together
274
          case $host_os in
275
          hpux9*) archive_cmds='$rm $output_objdir/$soname~$CC -shared -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 $lib' ;;
276
          *) archive_cmds='$CC -shared -fPIC ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' ;;
277
          esac
278
          output_verbose_link_cmds='$CC -shared -fPIC $CFLAGS -v conftest.$objext 2>&1 | egrep "\-L"'
279
          remove_lgcc=yes
280
        fi
281
        if test "$with_gcc" = no ; then
282
          # FIXME: insert proper C++ library support
283
          ld_shlibs=no
284
        fi
285
        ;;
286
    esac
287
    ;;
288
  irix5* | irix6*)
289
    case $cc_basename in
290
      CC)
291
        # SGI C++
292
        archive_cmds='$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'
293
 
294
        # Archives containing C++ object files must be created using
295
        # "CC -ar", where "CC" is the IRIX C++ compiler.  This is
296
        # necessary to make sure instantiated templates are included
297
        # in the archive.
298
        old_archive_cmds='$CC -ar -WR,-u -o $oldlib $oldobjs'
299
        ;;
300
      *)
301
        if test "$with_gcc" = yes; then
302
          if test "$with_gnu_ld" = no; then
303
            archive_cmds='$CC -D_LANGUAGE_C_CPLUS_PLUS -shared $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 $lib'
304
          else
305
            archive_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -soname $soname `test -n "$verstring" && echo -set_version $verstring` -o $lib'
306
          fi
307
        fi
308
        ;;
309
    esac
310
    hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
311
    hardcode_libdir_separator=:
312
    link_all_deplibs=yes
313
    ;;
314
  linux*)
315
    case $cc_basename in
316
      KCC)
317
        # Kuck and Associates, Inc. (KAI) C++ Compiler
318
 
319
        # KCC will only create a shared library if the output file
320
        # ends with ".so" (or ".sl" for HP-UX), so rename the library
321
        # to its proper name (with version) after linking.
322
        archive_cmds='templib=`echo $lib | sed -e "s/\.so\..*/\.so/"`; $CC $libobjs $deplibs $compiler_flags --soname $soname -o \$templib; test \$templib = $lib || mv \$templib $lib'
323
        archive_expsym_cmds='templib=`echo $lib | sed -e "s/\.so\..*/\.so/"`; $CC $libobjs $deplibs $compiler_flags --soname $soname -o \$templib ${wl}-retain-symbols-file,$export_symbols; test \$templib = $lib || mv \$templib $lib'
324
 
325
        # Commands to make compiler produce verbose output that lists
326
        # what "hidden" libraries, object files and flags are used when
327
        # linking a shared library.
328
        #
329
        # There doesn't appear to be a way to prevent this compiler from
330
        # explicitly linking system object files so we need to strip them
331
        # from the output so that they don't get included in the library
332
        # dependencies.
333
        output_verbose_link_cmds='echo "go to hell"'
334
        skip_need_lc_check=yes
335
 
336
        hardcode_libdir_flag_spec='${wl}--rpath,$libdir'
337
        export_dynamic_flag_spec='${wl}--export-dynamic'
338
 
339
        # Archives containing C++ object files must be created using
340
        # "CC -Bstatic", where "CC" is the KAI C++ compiler.
341
        # We add also $compiler_flags, to evetually add any --thread_safe or
342
        # --exceptions flags (which is also tested when building an .a
343
        # archive.
344
        old_archive_cmds='$CC -Bstatic $compiler_flags -o $oldlib $oldobjs'
345
        ;;
346
      cxx)
347
        # Compaq C++
348
        archive_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
349
        archive_expsym_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname  -o $lib ${wl}-retain-symbols-file $wl$export_symbols'
350
 
351
        runpath_var=LD_RUN_PATH
352
        hardcode_libdir_flag_spec='-rpath $libdir'
353
        hardcode_libdir_separator=:
354
 
355
        # Commands to make compiler produce verbose output that lists
356
        # what "hidden" libraries, object files and flags are used when
357
        # linking a shared library.
358
        #
359
        # There doesn't appear to be a way to prevent this compiler from
360
        # explicitly linking system object files so we need to strip them
361
        # from the output so that they don't get included in the library
362
        # dependencies.
363
        output_verbose_link_cmds='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 $list'
364
        ;;
365
      insure)
366
        if test "$with_gcc" = yes; then
367
          # Insure++ together with gcc probably means also GNU ld
368
          # only -whole-archive isn't supported
369
          whole_archive_flag_spec=""
370
          # and we can't use -nostdlib, because bloody insure has no way to
371
          # output the linkline (-Zvm isn't working as documented), so we don't
372
          # know the depending libs. So we hope, insure gets it right anyway.
373
          archive_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
374
          runpath_var=LD_RUN_PATH
375
          hardcode_libdir_flag_spec='${wl}--rpath ${wl}$libdir'
376
          export_dynamic_flag_spec='${wl}--export-dynamic'
377
          output_verbose_link_cmds=""
378
        fi
379
    esac
380
    ;;
381
  lynxos*)
382
    # FIXME: insert proper C++ library support
383
    ld_shlibs=no
384
    ;;
385
  m88k*)
386
    # FIXME: insert proper C++ library support
387
    ld_shlibs=no
388
    ;;
389
  mvs*)
390
    case $cc_basename in
391
      cxx)
392
        # FIXME: insert proper C++ library support
393
        ld_shlibs=no
394
        ;;
395
      *)
396
        # FIXME: insert proper C++ library support
397
        ld_shlibs=no
398
        ;;
399
    esac
400
    ;;
401
  netbsd*)
402
    if test "$with_gcc" = no || test "$with_gnu_ld" = no; then
403
      # This should only be triggered for NetBSD/a.out
404
      # Add in C++ constructor/destructor support
405
      if test -f /usr/pkg/lib/c++rt0/c++rt0.o.PIC; then
406
        cppopts="/usr/pkg/lib/c++rt0/c++rt0.o.PIC"
407
      elif test -f /usr/lib/c++rt0.o; then
408
        cppopts="/usr/lib/c++rt0.o"
409
      fi
410
      archive_cmds='ld -Bshareable -o $lib '"$cppopts"' $libobjs $deplibs $linkopts'
411
    fi
412
    ;;
413
  openbsd*)
414
    if test "$with_gcc" = yes && test "$with_gnu_ld" = no; then
415
      # MM: OpenBSD 2.7 uses G++, but not GNU ld
416
      archive_cmds='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib'
417
      archive_expsym_cmds='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib'
418
      old_archive_cmds="$old_archive_cmds~"'$RANLIB $oldlib'
419
      hardcode_libdir_flag_spec='${wl}-R$libdir'
420
      hardcode_direct=yes
421
      hardcode_shlibpath_var=no
422
      whole_archive_flag_spec='${wl}-Bforcearchive'
423
      remove_lgcc=yes
424
    fi
425
    ;;
426
  osf3*)
427
    if test "$with_gcc" = yes && test "$with_gnu_ld" = no; then
428
      allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
429
      archive_cmds='$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'
430
 
431
      hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
432
      hardcode_libdir_separator=:
433
 
434
      # Commands to make compiler produce verbose output that lists
435
      # what "hidden" libraries, object files and flags are used when
436
      # linking a shared library.
437
      output_verbose_link_cmds='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | egrep "\-L"'
438
    else
439
      case $cc_basename in
440
        KCC)
441
          # Kuck and Associates, Inc. (KAI) C++ Compiler
442
 
443
          # KCC will only create a shared library if the output file
444
          # ends with ".so" (or ".sl" for HP-UX), so rename the library
445
          # to its proper name (with version) after linking.
446
          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'
447
 
448
          hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
449
          hardcode_libdir_separator=:
450
 
451
          # Archives containing C++ object files must be created using
452
          # "CC -Bstatic", where "CC" is the KAI C++ compiler.
453
          old_archive_cmds='$CC -Bstatic -o $oldlib $oldobjs'
454
 
455
          ;;
456
        RCC)
457
          # Rational C++ 2.4.1
458
          # FIXME: insert proper C++ library support
459
          ld_shlibs=no
460
          ;;
461
        cxx)
462
          allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
463
          archive_cmds='$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'
464
 
465
          hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
466
          hardcode_libdir_separator=:
467
 
468
          # Commands to make compiler produce verbose output that lists
469
          # what "hidden" libraries, object files and flags are used when
470
          # linking a shared library.
471
          #
472
          # There doesn't appear to be a way to prevent this compiler from
473
          # explicitly linking system object files so we need to strip them
474
          # from the output so that they don't get included in the library
475
          # dependencies.
476
          output_verbose_link_cmds='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 $list'
477
          ;;
478
        *)
479
          # FIXME: insert proper C++ library support
480
          ld_shlibs=no
481
          ;;
482
      esac
483
    fi
484
    ;;
485
  osf4* | osf5*)
486
    if test "$with_gcc" = yes && test "$with_gnu_ld" = no; then
487
      allow_undefined_flag=' -Wl,-expect_unresolved -Wl,\*'
488
      no_undefined_flag=' -Wl,-expect_unresolved -Wl,\*'
489
      archive_cmds='$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'
490
 
491
      hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
492
      hardcode_libdir_separator=:
493
 
494
      # Commands to make compiler produce verbose output that lists
495
      # what "hidden" libraries, object files and flags are used when
496
      # linking a shared library.
497
      output_verbose_link_cmds='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | egrep "\-L"'
498
    else
499
      case $cc_basename in
500
        KCC)
501
          # Kuck and Associates, Inc. (KAI) C++ Compiler
502
 
503
          # KCC will only create a shared library if the output file
504
          # ends with ".so" (or ".sl" for HP-UX), so rename the library
505
          # to its proper name (with version) after linking.
506
          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'
507
 
508
          hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
509
          hardcode_libdir_separator=:
510
 
511
          # Archives containing C++ object files must be created using
512
          # the KAI C++ compiler.
513
          old_archive_cmds='$CC -o $oldlib $oldobjs'
514
          ;;
515
        RCC)
516
          # Rational C++ 2.4.1
517
          # FIXME: insert proper C++ library support
518
          ld_shlibs=no
519
          ;;
520
        cxx)
521
          allow_undefined_flag=' -Wl,-expect_unresolved -Wl,\*'
522
          no_undefined_flag=' -Wl,-expect_unresolved -Wl,\*'
523
          archive_cmds='$CC -shared${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` -update_registry ${objdir}/so_locations -o $lib'
524
 
525
          hardcode_libdir_flag_spec='-rpath $libdir'
526
          hardcode_libdir_separator=:
527
 
528
          # Commands to make compiler produce verbose output that lists
529
          # what "hidden" libraries, object files and flags are used when
530
          # linking a shared library.
531
          #
532
          # There doesn't appear to be a way to prevent this compiler from
533
          # explicitly linking system object files so we need to strip them
534
          # from the output so that they don't get included in the library
535
          # dependencies.
536
          output_verbose_link_cmds='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'
537
          ;;
538
        *)
539
          # FIXME: insert proper C++ library support
540
          ld_shlibs=no
541
          ;;
542
      esac
543
    fi
544
    ;;
545
  psos*)
546
    # FIXME: insert proper C++ library support
547
    ld_shlibs=no
548
    ;;
549
  sco*)
550
    case $cc_basename in
551
      CC)
552
        # FIXME: insert proper C++ library support
553
        ld_shlibs=no
554
        ;;
555
      *)
556
        # FIXME: insert proper C++ library support
557
        ld_shlibs=no
558
        ;;
559
    esac
560
    ;;
561
  sunos4*)
562
    case $cc_basename in
563
      CC)
564
        # Sun C++ 4.x
565
        # FIXME: insert proper C++ library support
566
        ld_shlibs=no
567
        ;;
568
      lcc)
569
        # Lucid
570
        # FIXME: insert proper C++ library support
571
        ld_shlibs=no
572
        ;;
573
      *)
574
        # FIXME: insert proper C++ library support
575
        ld_shlibs=no
576
        ;;
577
    esac
578
    ;;
579
  solaris*)
580
    case $cc_basename in
581
      CC)
582
        # Sun C++ 4.2, 5.x and Centerline C++
583
        no_undefined_flag=' -ztext'
584
        archive_cmds='$CC -G${allow_undefined_flag} -nolib -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
585
        archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
586
        $CC -G${allow_undefined_flag} -nolib ${wl}-M ${wl}$lib.exp -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$rm $lib.exp'
587
 
588
        hardcode_libdir_flag_spec='-R$libdir'
589
        hardcode_shlibpath_var=no
590
        case $host_os in
591
          solaris2.[0-5] | solaris2.[0-5].*) ;;
592
          *)
593
            # The C++ compiler is used as linker so we must use $wl
594
            # flag to pass the commands to the underlying system
595
            # linker.
596
            # Supported since Solaris 2.6 (maybe 2.5.1?)
597
            whole_archive_flag_spec='${wl}-z ${wl}allextract$convenience ${wl}-z ${wl}defaultextract'
598
            ;;
599
        esac
600
        link_all_deplibs=yes
601
 
602
        # Commands to make compiler produce verbose output that lists
603
        # what "hidden" libraries, object files and flags are used when
604
        # linking a shared library.
605
        #
606
        # There doesn't appear to be a way to prevent this compiler from
607
        # explicitly linking system object files so we need to strip them
608
        # from the output so that they don't get included in the library
609
        # dependencies.
610
        output_verbose_link_cmds='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'
611
 
612
        # Archives containing C++ object files must be created using
613
        # "CC -xar", where "CC" is the Sun C++ compiler.  This is
614
        # necessary to make sure instantiated templates are included
615
        # in the archive.
616
        old_archive_cmds='$CC -xar -o $oldlib $oldobjs'
617
        ;;
618
      gcx)
619
        # Green Hills C++ Compiler
620
        archive_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'
621
 
622
        # The C++ compiler must be used to create the archive.
623
        old_archive_cmds='$CC $LDFLAGS -archive -o $oldlib $oldobjs'
624
        ;;
625
      *)
626
        # GNU C++ compiler with Solaris linker
627
        if test "$with_gcc" = yes && test "$with_gnu_ld" = no; then
628
          if $CC --version | egrep -v '^2\.7' > /dev/null; then
629
            archive_cmds='$CC -shared -nostdlib $LDFLAGS $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'
630
            archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
631
                $CC -shared -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$rm $lib.exp'
632
 
633
            # Commands to make compiler produce verbose output that lists
634
            # what "hidden" libraries, object files and flags are used when
635
            # linking a shared library.
636
            output_verbose_link_cmds="$CC -shared $CFLAGS -v conftest.$objext 2>&1 | egrep \"\-L\""
637
          else
638
            # g++ 2.7 appears to require `-G' NOT `-shared' on this
639
            # platform.
640
            archive_cmds='$CC -G -nostdlib $LDFLAGS $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'
641
            archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
642
                $CC -G -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$rm $lib.exp'
643
 
644
            # Commands to make compiler produce verbose output that lists
645
            # what "hidden" libraries, object files and flags are used when
646
            # linking a shared library.
647
            output_verbose_link_cmds="$CC -G $CFLAGS -v conftest.$objext 2>&1 | egrep \"\-L\""
648
          fi
649
 
650
          hardcode_libdir_flag_spec='${wl}-R $wl$libdir'
651
        fi
652
        ;;
653
    esac
654
    ;;
655
  tandem*)
656
    case $cc_basename in
657
      NCC)
658
        # NonStop-UX NCC 3.20
659
        # FIXME: insert proper C++ library support
660
        ld_shlibs=no
661
        ;;
662
      *)
663
        # FIXME: insert proper C++ library support
664
        ld_shlibs=no
665
        ;;
666
    esac
667
    ;;
668
  unixware*)
669
    # FIXME: insert proper C++ library support
670
    ld_shlibs=no
671
    ;;
672
  vxworks*)
673
    # FIXME: insert proper C++ library support
674
    ld_shlibs=no
675
    ;;
676
  *)
677
    # FIXME: insert proper C++ library support
678
    ld_shlibs=no
679
    ;;
680
esac
681
 
682
 
683
## Compiler Characteristics: PIC flags, static flags, etc
684
 
685
# We don't use cached values here since only the C compiler
686
# characteristics should be cached.
687
ac_cv_prog_cc_pic=
688
ac_cv_prog_cc_shlib=
689
ac_cv_prog_cc_wl=
690
ac_cv_prog_cc_static=
691
ac_cv_prog_cc_no_builtin=
692
ac_cv_prog_cc_can_build_shared=$can_build_shared
693
 
694
ac_cv_prog_cc_pic_works=
695
ac_cv_prog_cc_static_works=
696
 
697
if test "$with_gcc" = yes; then
698
  ac_cv_prog_cc_wl='-Wl,'
699
  ac_cv_prog_cc_static='-static'
700
 
701
  case $host_os in
702
  aix*)
703
    # All AIX code is PIC.
704
    if test "$host_cpu" = ia64; then
705
      # AIX 5 now supports IA64 processor
706
      lt_cv_prog_cc_static='-Bstatic'
707
    else
708
      lt_cv_prog_cc_static='-bnso -bI:/lib/syscalls.exp'
709
    fi
710
    ;;
711
  amigaos*)
712
    # FIXME: we need at least 68020 code to build shared libraries, but
713
    # adding the `-m68020' flag to GCC prevents building anything better,
714
    # like `-m68040'.
715
    ac_cv_prog_cc_pic='-m68020 -resident32 -malways-restore-a4'
716
    ;;
717
  beos* | irix5* | irix6* | osf3* | osf4* | osf5*)
718
    # PIC is the default for these OSes.
719
    ;;
720
  cygwin* | mingw* | os2*)
721
    # This hack is so that the source file can tell whether it is being
722
    # built for inclusion in a dll (and should export symbols for example).
723
    ac_cv_prog_cc_pic='-DDLL_EXPORT'
724
    ;;
725
  darwin* | rhapsody*)
726
    # PIC is the default on this platform
727
    # Common symbols not allowed in MH_DYLIB files
728
    lt_cv_prog_cc_pic='-fno-common'
729
    ;;
730
  *djgpp*)
731
    # DJGPP does not support shared libraries at all
732
    ac_cv_prog_cc_pic=
733
    ;;
734
  sysv4*MP*)
735
    if test -d /usr/nec; then
736
      ac_cv_prog_cc_pic=-Kconform_pic
737
    fi
738
    ;;
739
  *)
740
    ac_cv_prog_cc_pic='-fPIC'
741
    ;;
742
  esac
743
else
744
  case $host_os in
745
    aix4* | aix5*)
746
      # All AIX code is PIC.
747
      if test "$host_cpu" = ia64; then
748
        # AIX 5 now supports IA64 processor
749
        lt_cv_prog_cc_static='-Bstatic'
750
      else
751
        lt_cv_prog_cc_static='-bnso -bI:/lib/syscalls.exp'
752
      fi
753
      ;;
754
    chorus*)
755
      case $cc_basename in
756
      cxch68)
757
        # Green Hills C++ Compiler
758
        # 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"
759
        ;;
760
      esac
761
      ;;
762
    dgux*)
763
      case $cc_basename in
764
        ec++)
765
          ac_cv_prog_cc_pic='-KPIC'
766
          ;;
767
        ghcx)
768
          # Green Hills C++ Compiler
769
          ac_cv_prog_cc_pic='-pic'
770
          ;;
771
        *)
772
          ;;
773
      esac
774
      ;;
775
    freebsd*)
776
      # FreeBSD uses GNU C++
777
      ;;
778
    hpux9* | hpux10* | hpux11*)
779
      case $cc_basename in
780
        CC)
781
          ac_cv_prog_cc_wl='-Wl,'
782
          ac_cv_prog_cc_static="${ac_cv_prog_cc_wl}-a ${ac_cv_prog_cc_wl}archive"
783
          ac_cv_prog_cc_pic='+Z'
784
          ;;
785
        aCC)
786
          ac_cv_prog_cc_wl='-Wl,'
787
          ac_cv_prog_cc_static="${ac_cv_prog_cc_wl}-a ${ac_cv_prog_cc_wl}archive"
788
          ac_cv_prog_cc_pic='+Z'
789
          ;;
790
        *)
791
          ;;
792
      esac
793
      ;;
794
    irix5* | irix6*)
795
      case $cc_basename in
796
        CC)
797
          ac_cv_prog_cc_wl='-Wl,'
798
          ac_cv_prog_cc_static='-non_shared'
799
          ac_cv_prog_cc_pic='-KPIC'
800
          ;;
801
        *)
802
          ;;
803
      esac
804
      ;;
805
    linux*)
806
      case $cc_basename in
807
        KCC)
808
          # KAI C++ Compiler
809
          ac_cv_prog_cc_wl='--backend -Wl,'
810
          ac_cv_prog_cc_pic='-fPIC'
811
          ac_cv_prog_cc_static='-Bstatic'
812
          ;;
813
        cxx)
814
          # Compaq C++
815
          # Make sure the PIC flag is empty.  It appears that all Alpha
816
          # Linux and Compaq Tru64 Unix objects are PIC.
817
          ac_cv_prog_cc_pic=
818
          ac_cv_prog_cc_static='-non_shared'
819
          ;;
820
        *)
821
          ;;
822
      esac
823
      ;;
824
    lynxos*)
825
      ;;
826
    m88k*)
827
      ;;
828
    mvs*)
829
      case $cc_basename in
830
        cxx)
831
          ac_cv_prog_cc_pic='-W c,exportall'
832
          ;;
833
        *)
834
          ;;
835
      esac
836
      ;;
837
    netbsd*)
838
      ;;
839
    osf3* | osf4* | osf5*)
840
      case $cc_basename in
841
        KCC)
842
          ac_cv_prog_cc_wl='--backend -Wl,'
843
          ;;
844
        RCC)
845
          # Rational C++ 2.4.1
846
          ac_cv_prog_cc_pic='-pic'
847
          ;;
848
        cxx)
849
          # Digital/Compaq C++
850
          ac_cv_prog_cc_wl='-Wl,'
851
          # Make sure the PIC flag is empty.  It appears that all Alpha
852
          # Linux and Compaq Tru64 Unix objects are PIC.
853
          ac_cv_prog_cc_pic=
854
          ac_cv_prog_cc_static='-non_shared'
855
          ;;
856
        *)
857
          ;;
858
      esac
859
      ;;
860
    psos*)
861
      ;;
862
    sco*)
863
      case $cc_basename in
864
        CC)
865
          ac_cv_prog_cc_pic='-fPIC'
866
          ;;
867
        *)
868
          ;;
869
      esac
870
      ;;
871
    solaris*)
872
      case $cc_basename in
873
        CC)
874
          # Sun C++ 4.2, 5.x and Centerline C++
875
          ac_cv_prog_cc_pic='-KPIC'
876
          ac_cv_prog_cc_static='-Bstatic'
877
          ac_cv_prog_cc_wl='-Qoption ld '
878
          ;;
879
        gcx)
880
          # Green Hills C++ Compiler
881
          ac_cv_prog_cc_pic='-PIC'
882
          ;;
883
        *)
884
          ;;
885
      esac
886
      ;;
887
    sunos4*)
888
      case $cc_basename in
889
        CC)
890
          # Sun C++ 4.x
891
          ac_cv_prog_cc_pic='-pic'
892
          ac_cv_prog_cc_static='-Bstatic'
893
          ;;
894
        lcc)
895
          # Lucid
896
          ac_cv_prog_cc_pic='-pic'
897
          ;;
898
        *)
899
          ;;
900
      esac
901
      ;;
902
    tandem*)
903
      case $cc_basename in
904
        NCC)
905
          # NonStop-UX NCC 3.20
906
          ac_cv_prog_cc_pic='-KPIC'
907
          ;;
908
        *)
909
          ;;
910
      esac
911
      ;;
912
    unixware*)
913
      ;;
914
    vxworks*)
915
      ;;
916
    *)
917
      ac_cv_prog_cc_can_build_shared=no
918
      ;;
919
  esac
920
fi
921
 
922
case "$host_os" in
923
    # Platforms which do not suport PIC and -DPIC is meaningless
924
    # on them:
925
    *djgpp*)
926
      ac_cv_prog_cc_pic=
927
      ;;
928
    *)
929
      ac_cv_prog_cc_pic="$ac_cv_prog_cc_pic -DPIC"
930
      ;;
931
esac
932
 
933
 
934
# Figure out "hidden" C++ library dependencies from verbose
935
# compiler output whening linking a shared library.
936
cat > conftest.$ac_ext <<EOF
937
class Foo
938
{
939
public:
940
  Foo (void) { a = 0; }
941
private:
942
  int a;
943
};
944
EOF
945
 
946
 
947
if (eval $ac_compile) 2>&5; then
948
  # Parse the compiler output and extract the necessary
949
  # objects, libraries and library flags.
950
 
951
  # Sentinel used to keep track of whether or not we are before
952
  # the conftest object file.
953
  pre_test_object_deps_done=no
954
 
955
  for p in `eval $output_verbose_link_cmds`; do
956
 
957
    case $p in
958
 
959
    -L* | -R* | -l*)
960
       # Some compilers place space between "-{L,R}" and the path.
961
       # Remove the space.
962
       if test $p = "-L" \
963
          || test $p = "-R"; then
964
         prev=$p
965
         continue
966
       else
967
         prev=
968
       fi
969
 
970
       if test "$pre_test_object_deps_done" = no; then
971
         case $p in
972
         -L* | -R*)
973
           # Internal compiler library paths should come after those
974
           # provided the user.  The postdeps already come after the
975
           # user supplied libs so there is no need to process them.
976
           if test -z "$compiler_lib_search_path"; then
977
             compiler_lib_search_path="${prev}${p}"
978
           else
979
             compiler_lib_search_path="${compiler_lib_search_path} ${prev}${p}"
980
           fi
981
           ;;
982
         # The "-l" case would never come before the object being
983
         # linked, so don't bother handling this case.
984
         esac
985
       else
986
         add="${prev}${p}"
987
         if test "x$remove_lgcc" = "xyes" ; then
988
           case "$add" in
989
             -lgcc ) add="" ;;
990
           esac
991
         fi
992
         if test -n "$add" ; then
993
           if test -z "$postdeps"; then
994
             postdeps="$add"
995
           else
996
             postdeps="${postdeps} ${add}"
997
           fi
998
         fi
999
       fi
1000
       ;;
1001
 
1002
    *.$objext)
1003
       # This assumes that the test object file only shows up
1004
       # once in the compiler output.
1005
       if test "$p" = "conftest.$objext"; then
1006
         pre_test_object_deps_done=yes
1007
         continue
1008
       fi
1009
 
1010
       if test "$pre_test_object_deps_done" = no; then
1011
         if test -z "$predep_objects"; then
1012
           predep_objects="$p"
1013
         else
1014
           predep_objects="$predep_objects $p"
1015
         fi
1016
       else
1017
         if test -z "$postdep_objects"; then
1018
           postdep_objects="$p"
1019
         else
1020
           postdep_objects="$postdep_objects $p"
1021
         fi
1022
       fi
1023
       ;;
1024
 
1025
    *) ;; # Ignore the rest.
1026
 
1027
    esac
1028
  done
1029
 
1030
  # Clean up.
1031
  rm -f a.out
1032
else
1033
  echo "ltcf-cxx.sh: error: problem compiling test program"
1034
fi
1035
 
1036
$rm -f confest.$objext
1037
 
1038
if test "x$skip_need_lc_check" = "xyes" ; then
1039
  need_lc=no
1040
else
1041
  case " $postdeps " in
1042
  *" -lc "*) need_lc=no ;;
1043
  *) need_lc=yes ;;
1044
  esac
1045
fi