ltcf-cxx.sh

   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 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 to be a program name with arguments.
  53 set dummy $CC
  54 compiler=$2
  55 cc_basename=`$echo X"$compiler" | $Xsed -e 's%^.*/%%'`
  56
  57 # Check if we are using GNU gcc  (taken/adapted from configure script)
  58 # We need to check here since "--with-gcc" is set at configure time,
  59 # not ltconfig time!
  60 cat > conftest.$ac_ext <<EOF
  61 #ifdef __GNUC__
  62   yes;
  63 #endif
  64 EOF
  65 if { ac_try='${CC-c++} -E conftest.$ac_ext'; { (eval echo \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
  66   with_gcc=yes
  67
  68   # Set up default GNU C++ configuration
  69
  70   # Check if GNU C++ uses GNU ld as the underlying linker, since the
  71   # archiving commands below assume that GNU ld is being used.
  72   if eval "`$CC -print-prog-name=ld` --version 2>&1" | \
  73       egrep 'GNU ld' > /dev/null; then
  74     with_gnu_ld=yes
  75
  76     archive_cmds='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
  77     archive_expsym_cmds='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
  78
  79     hardcode_libdir_flag_spec='${wl}--rpath ${wl}$libdir'
  80     export_dynamic_flag_spec='${wl}--export-dynamic'
  81
  82     # If archive_cmds runs LD, not CC, wlarc should be empty
  83     # XXX I think wlarc can be eliminated in ltcf-cxx, but I need to
  84     #     investigate it a little bit more. (MM)
  85     wlarc='${wl}'
  86
  87     # ancient GNU ld didn't support --whole-archive et. al.
  88     if eval "`$CC -print-prog-name=ld` --help 2>&1" | \
  89         egrep 'no-whole-archive' > /dev/null; then
  90       whole_archive_flag_spec="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
  91     else
  92       whole_archive_flag_spec=
  93     fi
  94   else
  95     with_gnu_ld=no
  96     wlarc=
  97
  98     # A generic and very simple default shared library creation
  99     # command for GNU C++ for the case where it uses the native
 100     # linker, instead of GNU ld.  If possible, this setting should
 101     # overridden to take advantage of the native linker features on
 102     # the platform it is being used on.
 103     archive_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib'
 104   fi
 105
 106   # Commands to make compiler produce verbose output that lists
 107   # what "hidden" libraries, object files and flags are used when
 108   # linking a shared library.
 109   output_verbose_link_cmds='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | egrep "\-L"'
 110
 111 else
 112   with_gcc=no
 113   with_gnu_ld=no
 114   wlarc=
 115 fi
 116
 117 # In general, the C++ compiler should always link C++ objects.
 118 case $target in
 119 *aix3* | *aix4*)
 120   # AIX just has to be different, doesn't it? :-\
 121   LD=makeC++SharedLib_r
 122   LDFLAGS="$LDFLAGS -p 0"
 123   ;;
 124 *)
 125   LD="$CC"
 126   LDFLAGS="$LDFLAGS"
 127   ;;
 128 esac
 129
 130
 131 # PORTME: fill in a description of your system's C++ link characteristics
 132 case "$host_os" in
 133   aix3*)
 134     # FIXME: insert proper C++ library support
 135     ld_shlibs=no
 136     ;;
 137   aix4*)
 138     # FIXME: insert proper C++ library support
 139     ld_shlibs=no
 140     ;;
 141   chorus*)
 142     case "$cc_basename" in
 143       *)
 144         # FIXME: insert proper C++ library support
 145         ld_shlibs=no
 146         ;;
 147     esac
 148     ;;
 149   dgux*)
 150     case "$cc_basename" in
 151       ec++)
 152         # FIXME: insert proper C++ library support
 153         ld_shlibs=no
 154         ;;
 155       ghcx)
 156         # Green Hills C++ Compiler
 157         # FIXME: insert proper C++ library support
 158         ld_shlibs=no
 159         ;;
 160       *)
 161         # FIXME: insert proper C++ library support
 162         ld_shlibs=no
 163         ;;
 164     esac
 165     ;;
 166   freebsd*)
 167     # FreeBSD uses GNU C++ and GNU ld
 168     # FIXME: insert proper C++ library support
 169     ld_shlibs=no
 170     ;;
 171   hpux*)
 172     case "$cc_basename" in
 173       CC)
 174         # FIXME: insert proper C++ library support
 175         ld_shlibs=no
 176         ;;
 177       aCC)
 178         case "$host_os" in
 179         hpux9*) archive_cmds='$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 $lib' ;;
 180         *) archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' ;;
 181         esac
 182         hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
 183         hardcode_libdir_separator=:
 184         hardcode_direct=yes
 185         hardcode_minus_L=yes # Not in the search PATH, but as the default
 186                              # location of the library.
 187         export_dynamic_flag_spec='${wl}-E'
 188
 189         # Commands to make compiler produce verbose output that lists
 190         # what "hidden" libraries, object files and flags are used when
 191         # linking a shared library.
 192         #
 193         # There doesn't appear to be a way to prevent this compiler from
 194         # explicitly linking system object files so we need to strip them
 195         # from the output so that they don't get included in the library
 196         # dependencies.
 197         output_verbose_link_cmds='templist=`($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 $list'
 198         ;;
 199       *)
 200         # FIXME: insert proper C++ library support
 201         ld_shlibs=no
 202         ;;
 203     esac
 204     ;;
 205   irix5* | irix6*)
 206     case "$cc_basename" in
 207       CC)
 208         # SGI C++
 209         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 $lib'
 210
 211         # Archives containing C++ object files must be created using
 212         # "CC -ar", where "CC" is the IRIX C++ compiler.  This is
 213         # necessary to make sure instantiated templates are included
 214         # in the archive.
 215         old_archive_cmds='$CC -ar -WR,-u -o $oldlib $oldobjs'
 216         ;;
 217       *)
 218         if test "$with_gcc" = yes; then
 219           if test "$with_gnu_ld" = no; then
 220             archive_cmds='$CC -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 $lib'
 221           else
 222             archive_cmds='$LD -shared $predep_objects $libobjs $deplibs $postdep_objects $linker_flags -soname $soname `test -n "$verstring" && echo -set_version $verstring` -o $lib'
 223           fi
 224         fi
 225         hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 226         hardcode_libdir_separator=:
 227         link_all_deplibs=yes
 228         ;;
 229     esac
 230     ;;
 231   linux*)
 232     case "$cc_basename" in
 233       KCC)
 234         # Kuck and Associates, Inc. (KAI) C++ Compiler
 235
 236         # KCC will only create a shared library if the output file
 237         # ends with ".so" (or ".sl" for HP-UX), so rename the library
 238         # to its proper name (with version) after linking.
 239         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'
 240         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 $lib'
 241
 242         # Commands to make compiler produce verbose output that lists
 243         # what "hidden" libraries, object files and flags are used when
 244         # linking a shared library.
 245         #
 246         # There doesn't appear to be a way to prevent this compiler from
 247         # explicitly linking system object files so we need to strip them
 248         # from the output so that they don't get included in the library
 249         # dependencies.
 250         output_verbose_link_cmds='templist=`$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 $list'
 251
 252         hardcode_libdir_flag_spec='${wl}--rpath,$libdir'
 253         export_dynamic_flag_spec='${wl}--export-dynamic'
 254
 255         # Archives containing C++ object files must be created using
 256         # "CC -Bstatic", where "CC" is the KAI C++ compiler.
 257         old_archive_cmds='$CC -Bstatic -o $oldlib $oldobjs'
 258         ;;
 259       cxx)
 260         # Compaq C++
 261         archive_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
 262         archive_expsym_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname  -o $lib ${wl}-retain-symbols-file $wl$export_symbols'
 263
 264         runpath_var=LD_RUN_PATH
 265         hardcode_libdir_flag_spec='-rpath $libdir'
 266         hardcode_libdir_separator=:
 267
 268         # Commands to make compiler produce verbose output that lists
 269         # what "hidden" libraries, object files and flags are used when
 270         # linking a shared library.
 271         #
 272         # There doesn't appear to be a way to prevent this compiler from
 273         # explicitly linking system object files so we need to strip them
 274         # from the output so that they don't get included in the library
 275         # dependencies.
 276         output_verbose_link_cmds='templist=`$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 $list'
 277         ;;
 278     esac
 279     ;;
 280   lynxos*)
 281     # FIXME: insert proper C++ library support
 282     ld_shlibs=no
 283     ;;
 284   m88k*)
 285     # FIXME: insert proper C++ library support
 286     ld_shlibs=no
 287     ;;
 288   mvs*)
 289     case "$cc_basename" in
 290       cxx)
 291         # FIXME: insert proper C++ library support
 292         ld_shlibs=no
 293         ;;
 294       *)
 295         # FIXME: insert proper C++ library support
 296         ld_shlibs=no
 297         ;;
 298     esac
 299     ;;
 300   netbsd*)
 301     # FIXME: insert proper C++ library support
 302     ld_shlibs=no
 303     ;;
 304   osf3*)
 305     if test "$with_gcc" = yes && test "$with_gnu_ld" = no; then
 306       allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
 307       archive_cmds='$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 $lib'
 308
 309       hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 310       hardcode_libdir_separator=:
 311
 312       # Commands to make compiler produce verbose output that lists
 313       # what "hidden" libraries, object files and flags are used when
 314       # linking a shared library.
 315       output_verbose_link_cmds='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | egrep "\-L"'
 316     fi
 317
 318     case "$cc_basename" in
 319       KCC)
 320         # Kuck and Associates, Inc. (KAI) C++ Compiler
 321
 322         # KCC will only create a shared library if the output file
 323         # ends with ".so" (or ".sl" for HP-UX), so rename the library
 324         # to its proper name (with version) after linking.
 325         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 $lib'
 326
 327         hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
 328         hardcode_libdir_separator=:
 329
 330         # Archives containing C++ object files must be created using
 331         # "CC -Bstatic", where "CC" is the KAI C++ compiler.
 332         old_archive_cmds='$CC -Bstatic -o $oldlib $oldobjs'
 333
 334         ;;
 335       RCC)
 336         # Rational C++ 2.4.1
 337         # FIXME: insert proper C++ library support
 338         ld_shlibs=no
 339         ;;
 340       cxx)
 341         allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
 342         archive_cmds='$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 $lib'
 343
 344         hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 345         hardcode_libdir_separator=:
 346
 347         # Commands to make compiler produce verbose output that lists
 348         # what "hidden" libraries, object files and flags are used when
 349         # linking a shared library.
 350         #
 351         # There doesn't appear to be a way to prevent this compiler from
 352         # explicitly linking system object files so we need to strip them
 353         # from the output so that they don't get included in the library
 354         # dependencies.
 355         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 $list'
 356         ;;
 357       *)
 358         # FIXME: insert proper C++ library support
 359         ld_shlibs=no
 360         ;;
 361     esac
 362     ;;
 363   osf4* | osf5*)
 364     if test "$with_gcc" = yes && test "$with_gnu_ld" = no; then
 365       allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
 366       archive_cmds='$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 $lib'
 367
 368       hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 369       hardcode_libdir_separator=:
 370
 371       # Commands to make compiler produce verbose output that lists
 372       # what "hidden" libraries, object files and flags are used when
 373       # linking a shared library.
 374       output_verbose_link_cmds='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | egrep "\-L"'
 375     fi
 376
 377     case "$cc_basename" in
 378       KCC)
 379         # Kuck and Associates, Inc. (KAI) C++ Compiler
 380
 381         # KCC will only create a shared library if the output file
 382         # ends with ".so" (or ".sl" for HP-UX), so rename the library
 383         # to its proper name (with version) after linking.
 384         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 $lib'
 385
 386         hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
 387         hardcode_libdir_separator=:
 388
 389         # Archives containing C++ object files must be created using
 390         # the KAI C++ compiler.
 391         old_archive_cmds='$CC -o $oldlib $oldobjs'
 392         ;;
 393       RCC)
 394         # Rational C++ 2.4.1
 395         # FIXME: insert proper C++ library support
 396         ld_shlibs=no
 397         ;;
 398       cxx)
 399         allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
 400         archive_cmds='$CC -shared${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-msym ${wl}-soname $soname `test -n "$verstring" && echo ${wl}-set_version $verstring` -update_registry ${objdir}/so_locations -o $lib'
 401
 402         hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 403         hardcode_libdir_separator=:
 404
 405         # Commands to make compiler produce verbose output that lists
 406         # what "hidden" libraries, object files and flags are used when
 407         # linking a shared library.
 408         #
 409         # There doesn't appear to be a way to prevent this compiler from
 410         # explicitly linking system object files so we need to strip them
 411         # from the output so that they don't get included in the library
 412         # dependencies.
 413         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 $list'
 414         ;;
 415       *)
 416         # FIXME: insert proper C++ library support
 417         ld_shlibs=no
 418         ;;
 419     esac
 420     ;;
 421   psos*)
 422     # FIXME: insert proper C++ library support
 423     ld_shlibs=no
 424     ;;
 425   sco*)
 426     case "$cc_basename" in
 427       CC)
 428         # FIXME: insert proper C++ library support
 429         ld_shlibs=no
 430         ;;
 431       *)
 432         # FIXME: insert proper C++ library support
 433         ld_shlibs=no
 434         ;;
 435     esac
 436     ;;
 437   sunos4*)
 438     case "$cc_basename" in
 439       CC)
 440         # Sun C++ 4.x
 441         # FIXME: insert proper C++ library support
 442         ld_shlibs=no
 443         ;;
 444       lcc)
 445         # Lucid
 446         # FIXME: insert proper C++ library support
 447         ld_shlibs=no
 448         ;;
 449       *)
 450         # FIXME: insert proper C++ library support
 451         ld_shlibs=no
 452         ;;
 453     esac
 454     ;;
 455   solaris*)
 456     case "$cc_basename" in
 457       CC)
 458         # Sun C++ 4.2, 5.x and Centerline C++
 459         no_undefined_flag=' -ztext'
 460         archive_cmds='$CC -G${allow_undefined_flag} -nolib -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
 461         archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
 462         $CC -G${allow_undefined_flag} -nolib ${wl}-M ${wl}$lib.exp -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$rm $lib.exp'
 463
 464         hardcode_libdir_flag_spec='-R$libdir'
 465         hardcode_shlibpath_var=no
 466         case "$host_os" in
 467           solaris2.[0-5] | solaris2.[0-5].*) ;;
 468           *)
 469             # The C++ compiler is used as linker so we must use $wl
 470             # flag to pass the commands to the underlying system
 471             # linker.
 472             # Supported since Solaris 2.6 (maybe 2.5.1?)
 473             whole_archive_flag_spec='${wl}-z ${wl}allextract$convenience ${wl}-z ${wl}defaultextract'
 474             ;;
 475         esac
 476         link_all_deplibs=yes
 477
 478         # Commands to make compiler produce verbose output that lists
 479         # what "hidden" libraries, object files and flags are used when
 480         # linking a shared library.
 481         #
 482         # There doesn't appear to be a way to prevent this compiler from
 483         # explicitly linking system object files so we need to strip them
 484         # from the output so that they don't get included in the library
 485         # dependencies.
 486         output_verbose_link_cmds='templist=`$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 $list'
 487
 488         # Archives containing C++ object files must be created using
 489         # "CC -xar", where "CC" is the Sun C++ compiler.  This is
 490         # necessary to make sure instantiated templates are included
 491         # in the archive.
 492         old_archive_cmds='$CC -xar -o $oldlib $oldobjs'
 493         ;;
 494       gcx)
 495         # Green Hills C++ Compiler
 496         archive_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'
 497
 498         # The C++ compiler must be used to create the archive.
 499         old_archive_cmds='$CC $LDFLAGS -archive -o $oldlib $oldobjs'
 500         ;;
 501       *)
 502         # GNU C++ compiler with Solaris linker
 503         if test "$with_gcc" = yes && test "$with_gnu_ld" = no; then
 504           if $CC --version | egrep -v '^2\.7' > /dev/null; then
 505             archive_cmds='$LD -shared -nostdlib $LDFLAGS $predep_objects $libobjs $deplibs $postdep_objects $linker_flags ${wl}-h $wl$soname -o $lib'
 506             archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
 507                 $LD -shared -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags~$rm $lib.exp'
 508
 509             # Commands to make compiler produce verbose output that lists
 510             # what "hidden" libraries, object files and flags are used when
 511             # linking a shared library.
 512             output_verbose_link_cmds="$CC -shared $CFLAGS -v conftest.$objext 2>&1 | egrep \"\-L\""
 513           else
 514             # g++ 2.7 appears to require `-G' NOT `-shared' on this
 515             # platform.
 516             archive_cmds='$LD -G -nostdlib $LDFLAGS $predep_objects $libobjs $deplibs $postdep_objects $linker_flags ${wl}-h $wl$soname -o $lib'
 517             archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
 518                 $LD -G -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags~$rm $lib.exp'
 519
 520             # Commands to make compiler produce verbose output that lists
 521             # what "hidden" libraries, object files and flags are used when
 522             # linking a shared library.
 523             output_verbose_link_cmds="$CC -G $CFLAGS -v conftest.$objext 2>&1 | egrep \"\-L\""
 524           fi
 525
 526           hardcode_libdir_flag_spec='${wl}-R $wl$libdir'
 527         fi
 528         ;;
 529     esac
 530     ;;
 531   tandem*)
 532     case "$cc_basename" in
 533       NCC)
 534         # NonStop-UX NCC 3.20
 535         # FIXME: insert proper C++ library support
 536         ld_shlibs=no
 537         ;;
 538       *)
 539         # FIXME: insert proper C++ library support
 540         ld_shlibs=no
 541         ;;
 542     esac
 543     ;;
 544   unixware*)
 545     # FIXME: insert proper C++ library support
 546     ld_shlibs=no
 547     ;;
 548   vxworks*)
 549     # FIXME: insert proper C++ library support
 550     ld_shlibs=no
 551     ;;
 552   *)
 553     # FIXME: insert proper C++ library support
 554     ld_shlibs=no
 555     ;;
 556 esac
 557
 558
 559 ## Compiler Characteristics: PIC flags, static flags, etc
 560
 561 # We don't use cached values here since only the C compiler
 562 # characteristics should be cached.
 563 ac_cv_prog_cc_pic=
 564 ac_cv_prog_cc_shlib=
 565 ac_cv_prog_cc_wl=
 566 ac_cv_prog_cc_static=
 567 ac_cv_prog_cc_no_builtin=
 568 ac_cv_prog_cc_can_build_shared=$can_build_shared
 569
 570 # It is not enough to reset these cached values, they must be unset.
 571 unset ac_cv_prog_cc_pic_works
 572 unset ac_cv_prog_cc_static_works
 573
 574 if test "$with_gcc" = yes; then
 575   ac_cv_prog_cc_wl='-Wl,'
 576   ac_cv_prog_cc_static='-static'
 577
 578   case "$host_os" in
 579   beos* | irix5* | irix6* | osf3* | osf4* | osf5*)
 580     # PIC is the default for these OSes.
 581     ;;
 582   aix*)
 583     # Below there is a dirty hack to force normal static linking with -ldl
 584     # The problem is because libdl dynamically linked with both libc and
 585     # libC (AIX C++ library), which obviously doesn't included in libraries
 586     # list by gcc. This cause undefined symbols with -static flags.
 587     # This hack allows C programs to be linked with "-static -ldl", but
 588     # we not sure about C++ programs.
 589     ac_cv_prog_cc_static="$ac_cv_prog_cc_static ${ac_cv_prog_cc_wl}-lC"
 590     ;;
 591   cygwin* | mingw* | os2*)
 592     # This hack is so that the source file can tell whether it is being
 593     # built for inclusion in a dll (and should export symbols for example).
 594     ac_cv_prog_cc_pic='-DDLL_EXPORT'
 595     ;;
 596   amigaos*)
 597     # FIXME: we need at least 68020 code to build shared libraries, but
 598     # adding the `-m68020' flag to GCC prevents building anything better,
 599     # like `-m68040'.
 600     ac_cv_prog_cc_pic='-m68020 -resident32 -malways-restore-a4'
 601     ;;
 602   sysv4*MP*)
 603     if test -d /usr/nec; then
 604       ac_cv_prog_cc_pic=-Kconform_pic
 605     fi
 606     ;;
 607   *)
 608     ac_cv_prog_cc_pic='-fPIC'
 609     ;;
 610   esac
 611 else
 612   case "$host_os" in
 613     aix4*)
 614       # All AIX code is PIC.
 615       ;;
 616     chorus*)
 617       case "$cc_basename" in
 618       cxch68)
 619         # Green Hills C++ Compiler
 620         # 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 $MVME_DIR/lib/classix/libcx.s.a"
 621         ;;
 622       esac
 623       ;;
 624     dgux*)
 625       case "$cc_basename" in
 626         ec++)
 627           ac_cv_prog_cc_pic='-KPIC'
 628           ;;
 629         ghcx)
 630           # Green Hills C++ Compiler
 631           ac_cv_prog_cc_pic='-pic'
 632           ;;
 633         *)
 634           ;;
 635       esac
 636       ;;
 637     freebsd*)
 638       # FreeBSD uses GNU C++
 639       ;;
 640     hpux9* | hpux10* | hpux11*)
 641       case "$cc_basename" in
 642         CC)
 643           ac_cv_prog_cc_wl='-Wl,'
 644           ac_cv_prog_cc_static="${ac_cv_prog_cc_wl}-a ${ac_cv_prog_cc_wl}archive"
 645           ac_cv_prog_cc_pic='+Z'
 646           ;;
 647         aCC)
 648           ac_cv_prog_cc_wl='-Wl,'
 649           ac_cv_prog_cc_static="${ac_cv_prog_cc_wl}-a ${ac_cv_prog_cc_wl}archive"
 650           ac_cv_prog_cc_pic='+Z'
 651           ;;
 652         *)
 653           ;;
 654       esac
 655       ;;
 656     irix5* | irix6*)
 657       case "$cc_basename" in
 658         CC)
 659           ac_cv_prog_cc_wl='-Wl,'
 660           ac_cv_prog_cc_static='-non_shared'
 661           ac_cv_prog_cc_pic='-KPIC'
 662           ;;
 663         *)
 664           ;;
 665       esac
 666       ;;
 667     linux*)
 668       case "$cc_basename" in
 669         KCC)
 670           # KAI C++ Compiler
 671           ac_cv_prog_cc_wl='--backend -Wl,'
 672           ac_cv_prog_cc_pic='-fPIC'
 673           ;;
 674         cxx)
 675           # Compaq C++
 676           # Make sure the PIC flag is empty.  It appears that all Alpha
 677           # Linux and Compaq Tru64 Unix objects are PIC.
 678           ac_cv_prog_cc_pic=
 679           ac_cv_prog_cc_static='-non_shared'
 680           ;;
 681         *)
 682           ;;
 683       esac
 684       ;;
 685     lynxos*)
 686       ;;
 687     m88k*)
 688       ;;
 689     mvs*)
 690       case "$cc_basename" in
 691         cxx)
 692           ac_cv_prog_cc_pic='-W c,exportall'
 693           ;;
 694         *)
 695           ;;
 696       esac
 697       ;;
 698     netbsd*)
 699       ;;
 700     osf3* | osf4* | osf5*)
 701       case "$cc_basename" in
 702         KCC)
 703           ac_cv_prog_cc_wl='--backend -Wl,'
 704           ;;
 705         RCC)
 706           # Rational C++ 2.4.1
 707           ac_cv_prog_cc_pic='-pic'
 708           ;;
 709         cxx)
 710           # Digital/Compaq C++
 711           ac_cv_prog_cc_wl='-Wl,'
 712           # Make sure the PIC flag is empty.  It appears that all Alpha
 713           # Linux and Compaq Tru64 Unix objects are PIC.
 714           ac_cv_prog_cc_pic=
 715           ac_cv_prog_cc_static='-non_shared'
 716           ;;
 717         *)
 718           ;;
 719       esac
 720       ;;
 721     psos*)
 722       ;;
 723     sco*)
 724       case "$cc_basename" in
 725         CC)
 726           ac_cv_prog_cc_pic='-fPIC'
 727           ;;
 728         *)
 729           ;;
 730       esac
 731       ;;
 732     solaris*)
 733       case "$cc_basename" in
 734         CC)
 735           # Sun C++ 4.2, 5.x and Centerline C++
 736           ac_cv_prog_cc_pic='-KPIC'
 737           ac_cv_prog_cc_static='-Bstatic'
 738           ac_cv_prog_cc_wl='-Qoption ld '
 739           ;;
 740         gcx)
 741           # Green Hills C++ Compiler
 742           ac_cv_prog_cc_pic='-PIC'
 743           ;;
 744         *)
 745           ;;
 746       esac
 747       ;;
 748     sunos4*)
 749       case "$cc_basename" in
 750         CC)
 751           # Sun C++ 4.x
 752           ac_cv_prog_cc_pic='-pic'
 753           ac_cv_prog_cc_static='-Bstatic'
 754           ;;
 755         lcc)
 756           # Lucid
 757           ac_cv_prog_cc_pic='-pic'
 758           ;;
 759         *)
 760           ;;
 761       esac
 762       ;;
 763     tandem*)
 764       case "$cc_basename" in
 765         NCC)
 766           # NonStop-UX NCC 3.20
 767           ac_cv_prog_cc_pic='-KPIC'
 768           ;;
 769         *)
 770           ;;
 771       esac
 772       ;;
 773     unixware*)
 774       ;;
 775     vxworks*)
 776       ;;
 777     *)
 778       ac_cv_prog_cc_can_build_shared=no
 779       ;;
 780   esac
 781 fi
 782 ac_cv_prog_cc_pic="$ac_cv_prog_cc_pic -DPIC"
 783
 784
 785 # Figure out "hidden" C++ library dependencies from verbose
 786 # compiler output whening linking a shared library.
 787 cat > conftest.$ac_ext <<EOF
 788 class Foo
 789 {
 790 public:
 791   Foo (void) { a = 0; }
 792 private:
 793   int a;
 794 };
 795 EOF
 796
 797
 798 if eval $ac_compile 2>&5; then
 799   # Parse the compiler output and extract the necessary
 800   # objects, libraries and library flags.
 801
 802   # Sentinel used to keep track of whether or not we are before
 803   # the conftest object file.
 804   pre_test_object_deps_done=no
 805
 806   for p in `eval $output_verbose_link_cmds`; do
 807
 808     case $p in
 809
 810     -L* | -R* | -l*)
 811        # Some compilers place space between "-{L,R}" and the path.
 812        # Remove the space.
 813        if test $p = "-L" \
 814           || test $p = "-R"; then
 815          prev=$p
 816          continue
 817        else
 818          prev=
 819        fi
 820
 821        if test "$pre_test_object_deps_done" = no; then
 822          case $p in
 823          -L* | -R*)
 824            # Internal compiler library paths should come after those
 825            # provided the user.  The postdeps already come after the
 826            # user supplied libs so there is no need to process them.
 827            if test -z "$compiler_lib_search_path"; then
 828              compiler_lib_search_path="${prev}${p}"
 829            else
 830              compiler_lib_search_path="${compiler_lib_search_path} ${prev}${p}"
 831            fi
 832            ;;
 833          # The "-l" case would never come before the object being
 834          # linked, so don't bother handling this case.
 835          esac
 836        else
 837          if test -z "$postdeps"; then
 838            postdeps="${prev}${p}"
 839          else
 840            postdeps="${postdeps} ${prev}${p}"
 841          fi
 842        fi
 843        ;;
 844
 845     *.$objext)
 846        # This assumes that the test object file only shows up
 847        # once in the compiler output.
 848        if test "$p" = "conftest.$objext"; then
 849          pre_test_object_deps_done=yes
 850          continue
 851        fi
 852
 853        if test "$pre_test_object_deps_done" = no; then
 854          if test -z "$predep_objects"; then
 855            predep_objects="$p"
 856          else
 857            predep_objects="$predep_objects $p"
 858          fi
 859        else
 860          if test -z "$postdep_objects"; then
 861            postdep_objects="$p"
 862          else
 863            postdep_objects="$postdep_objects $p"
 864          fi
 865        fi
 866        ;;
 867
 868     *) ;; # Ignore the rest.
 869
 870     esac
 871   done
 872
 873   # Clean up.
 874   rm -f a.out
 875 else
 876   echo "ltcf-cxx.sh: error: problem compiling test program"
 877 fi
 878
 879 $rm -f confest.$objext
 880
 881 case " $postdeps " in
 882 *" -lc "*) need_lc=no ;;
 883 *) need_lc=yes ;;
 884 esac