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     # NetBSD uses g++ - do we need to do anything?
 302     ;;
 303   osf3*)
 304     if test "$with_gcc" = yes && test "$with_gnu_ld" = no; then
 305       allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
 306       archive_cmds='$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 $lib'
 307
 308       hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 309       hardcode_libdir_separator=:
 310
 311       # Commands to make compiler produce verbose output that lists
 312       # what "hidden" libraries, object files and flags are used when
 313       # linking a shared library.
 314       output_verbose_link_cmds='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | egrep "\-L"'
 315     fi
 316
 317     case "$cc_basename" in
 318       KCC)
 319         # Kuck and Associates, Inc. (KAI) C++ Compiler
 320
 321         # KCC will only create a shared library if the output file
 322         # ends with ".so" (or ".sl" for HP-UX), so rename the library
 323         # to its proper name (with version) after linking.
 324         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 $lib'
 325
 326         hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
 327         hardcode_libdir_separator=:
 328
 329         # Archives containing C++ object files must be created using
 330         # "CC -Bstatic", where "CC" is the KAI C++ compiler.
 331         old_archive_cmds='$CC -Bstatic -o $oldlib $oldobjs'
 332
 333         ;;
 334       RCC)
 335         # Rational C++ 2.4.1
 336         # FIXME: insert proper C++ library support
 337         ld_shlibs=no
 338         ;;
 339       cxx)
 340         allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
 341         archive_cmds='$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 $lib'
 342
 343         hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 344         hardcode_libdir_separator=:
 345
 346         # Commands to make compiler produce verbose output that lists
 347         # what "hidden" libraries, object files and flags are used when
 348         # linking a shared library.
 349         #
 350         # There doesn't appear to be a way to prevent this compiler from
 351         # explicitly linking system object files so we need to strip them
 352         # from the output so that they don't get included in the library
 353         # dependencies.
 354         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 $list'
 355         ;;
 356       *)
 357         # FIXME: insert proper C++ library support
 358         ld_shlibs=no
 359         ;;
 360     esac
 361     ;;
 362   osf4* | osf5*)
 363     if test "$with_gcc" = yes && test "$with_gnu_ld" = no; then
 364       allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
 365       archive_cmds='$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 $lib'
 366
 367       hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 368       hardcode_libdir_separator=:
 369
 370       # Commands to make compiler produce verbose output that lists
 371       # what "hidden" libraries, object files and flags are used when
 372       # linking a shared library.
 373       output_verbose_link_cmds='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | egrep "\-L"'
 374     fi
 375
 376     case "$cc_basename" in
 377       KCC)
 378         # Kuck and Associates, Inc. (KAI) C++ Compiler
 379
 380         # KCC will only create a shared library if the output file
 381         # ends with ".so" (or ".sl" for HP-UX), so rename the library
 382         # to its proper name (with version) after linking.
 383         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 $lib'
 384
 385         hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
 386         hardcode_libdir_separator=:
 387
 388         # Archives containing C++ object files must be created using
 389         # the KAI C++ compiler.
 390         old_archive_cmds='$CC -o $oldlib $oldobjs'
 391         ;;
 392       RCC)
 393         # Rational C++ 2.4.1
 394         # FIXME: insert proper C++ library support
 395         ld_shlibs=no
 396         ;;
 397       cxx)
 398         allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
 399         archive_cmds='$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 $lib'
 400
 401         hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 402         hardcode_libdir_separator=:
 403
 404         # Commands to make compiler produce verbose output that lists
 405         # what "hidden" libraries, object files and flags are used when
 406         # linking a shared library.
 407         #
 408         # There doesn't appear to be a way to prevent this compiler from
 409         # explicitly linking system object files so we need to strip them
 410         # from the output so that they don't get included in the library
 411         # dependencies.
 412         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 $list'
 413         ;;
 414       *)
 415         # FIXME: insert proper C++ library support
 416         ld_shlibs=no
 417         ;;
 418     esac
 419     ;;
 420   psos*)
 421     # FIXME: insert proper C++ library support
 422     ld_shlibs=no
 423     ;;
 424   sco*)
 425     case "$cc_basename" in
 426       CC)
 427         # FIXME: insert proper C++ library support
 428         ld_shlibs=no
 429         ;;
 430       *)
 431         # FIXME: insert proper C++ library support
 432         ld_shlibs=no
 433         ;;
 434     esac
 435     ;;
 436   sunos4*)
 437     case "$cc_basename" in
 438       CC)
 439         # Sun C++ 4.x
 440         # FIXME: insert proper C++ library support
 441         ld_shlibs=no
 442         ;;
 443       lcc)
 444         # Lucid
 445         # FIXME: insert proper C++ library support
 446         ld_shlibs=no
 447         ;;
 448       *)
 449         # FIXME: insert proper C++ library support
 450         ld_shlibs=no
 451         ;;
 452     esac
 453     ;;
 454   solaris*)
 455     case "$cc_basename" in
 456       CC)
 457         # Sun C++ 4.2, 5.x and Centerline C++
 458         no_undefined_flag=' -ztext'
 459         archive_cmds='$CC -G${allow_undefined_flag} -nolib -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
 460         archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
 461         $CC -G${allow_undefined_flag} -nolib ${wl}-M ${wl}$lib.exp -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$rm $lib.exp'
 462
 463         hardcode_libdir_flag_spec='-R$libdir'
 464         hardcode_shlibpath_var=no
 465         case "$host_os" in
 466           solaris2.[0-5] | solaris2.[0-5].*) ;;
 467           *)
 468             # The C++ compiler is used as linker so we must use $wl
 469             # flag to pass the commands to the underlying system
 470             # linker.
 471             # Supported since Solaris 2.6 (maybe 2.5.1?)
 472             whole_archive_flag_spec='${wl}-z ${wl}allextract$convenience ${wl}-z ${wl}defaultextract'
 473             ;;
 474         esac
 475         link_all_deplibs=yes
 476
 477         # Commands to make compiler produce verbose output that lists
 478         # what "hidden" libraries, object files and flags are used when
 479         # linking a shared library.
 480         #
 481         # There doesn't appear to be a way to prevent this compiler from
 482         # explicitly linking system object files so we need to strip them
 483         # from the output so that they don't get included in the library
 484         # dependencies.
 485         output_verbose_link_cmds='templist=`$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 $list'
 486
 487         # Archives containing C++ object files must be created using
 488         # "CC -xar", where "CC" is the Sun C++ compiler.  This is
 489         # necessary to make sure instantiated templates are included
 490         # in the archive.
 491         old_archive_cmds='$CC -xar -o $oldlib $oldobjs'
 492         ;;
 493       gcx)
 494         # Green Hills C++ Compiler
 495         archive_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'
 496
 497         # The C++ compiler must be used to create the archive.
 498         old_archive_cmds='$CC $LDFLAGS -archive -o $oldlib $oldobjs'
 499         ;;
 500       *)
 501         # GNU C++ compiler with Solaris linker
 502         if test "$with_gcc" = yes && test "$with_gnu_ld" = no; then
 503           if $CC --version | egrep -v '^2\.7' > /dev/null; then
 504             archive_cmds='$LD -shared -nostdlib $LDFLAGS $predep_objects $libobjs $deplibs $postdep_objects $linker_flags ${wl}-h $wl$soname -o $lib'
 505             archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
 506                 $LD -shared -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags~$rm $lib.exp'
 507
 508             # Commands to make compiler produce verbose output that lists
 509             # what "hidden" libraries, object files and flags are used when
 510             # linking a shared library.
 511             output_verbose_link_cmds="$CC -shared $CFLAGS -v conftest.$objext 2>&1 | egrep \"\-L\""
 512           else
 513             # g++ 2.7 appears to require `-G' NOT `-shared' on this
 514             # platform.
 515             archive_cmds='$LD -G -nostdlib $LDFLAGS $predep_objects $libobjs $deplibs $postdep_objects $linker_flags ${wl}-h $wl$soname -o $lib'
 516             archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
 517                 $LD -G -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags~$rm $lib.exp'
 518
 519             # Commands to make compiler produce verbose output that lists
 520             # what "hidden" libraries, object files and flags are used when
 521             # linking a shared library.
 522             output_verbose_link_cmds="$CC -G $CFLAGS -v conftest.$objext 2>&1 | egrep \"\-L\""
 523           fi
 524
 525           hardcode_libdir_flag_spec='${wl}-R $wl$libdir'
 526         fi
 527         ;;
 528     esac
 529     ;;
 530   tandem*)
 531     case "$cc_basename" in
 532       NCC)
 533         # NonStop-UX NCC 3.20
 534         # FIXME: insert proper C++ library support
 535         ld_shlibs=no
 536         ;;
 537       *)
 538         # FIXME: insert proper C++ library support
 539         ld_shlibs=no
 540         ;;
 541     esac
 542     ;;
 543   unixware*)
 544     # FIXME: insert proper C++ library support
 545     ld_shlibs=no
 546     ;;
 547   vxworks*)
 548     # FIXME: insert proper C++ library support
 549     ld_shlibs=no
 550     ;;
 551   *)
 552     # FIXME: insert proper C++ library support
 553     ld_shlibs=no
 554     ;;
 555 esac
 556
 557
 558 ## Compiler Characteristics: PIC flags, static flags, etc
 559
 560 # We don't use cached values here since only the C compiler
 561 # characteristics should be cached.
 562 ac_cv_prog_cc_pic=
 563 ac_cv_prog_cc_shlib=
 564 ac_cv_prog_cc_wl=
 565 ac_cv_prog_cc_static=
 566 ac_cv_prog_cc_no_builtin=
 567 ac_cv_prog_cc_can_build_shared=$can_build_shared
 568
 569 # It is not enough to reset these cached values, they must be unset.
 570 unset ac_cv_prog_cc_pic_works
 571 unset ac_cv_prog_cc_static_works
 572
 573 if test "$with_gcc" = yes; then
 574   ac_cv_prog_cc_wl='-Wl,'
 575   ac_cv_prog_cc_static='-static'
 576
 577   case "$host_os" in
 578   beos* | irix5* | irix6* | osf3* | osf4* | osf5*)
 579     # PIC is the default for these OSes.
 580     ;;
 581   aix*)
 582     # Below there is a dirty hack to force normal static linking with -ldl
 583     # The problem is because libdl dynamically linked with both libc and
 584     # libC (AIX C++ library), which obviously doesn't included in libraries
 585     # list by gcc. This cause undefined symbols with -static flags.
 586     # This hack allows C programs to be linked with "-static -ldl", but
 587     # we not sure about C++ programs.
 588     ac_cv_prog_cc_static="$ac_cv_prog_cc_static ${ac_cv_prog_cc_wl}-lC"
 589     ;;
 590   cygwin* | mingw* | os2*)
 591     # This hack is so that the source file can tell whether it is being
 592     # built for inclusion in a dll (and should export symbols for example).
 593     ac_cv_prog_cc_pic='-DDLL_EXPORT'
 594     ;;
 595   amigaos*)
 596     # FIXME: we need at least 68020 code to build shared libraries, but
 597     # adding the `-m68020' flag to GCC prevents building anything better,
 598     # like `-m68040'.
 599     ac_cv_prog_cc_pic='-m68020 -resident32 -malways-restore-a4'
 600     ;;
 601   sysv4*MP*)
 602     if test -d /usr/nec; then
 603       ac_cv_prog_cc_pic=-Kconform_pic
 604     fi
 605     ;;
 606   *)
 607     ac_cv_prog_cc_pic='-fPIC'
 608     ;;
 609   esac
 610 else
 611   case "$host_os" in
 612     aix4*)
 613       # All AIX code is PIC.
 614       ;;
 615     chorus*)
 616       case "$cc_basename" in
 617       cxch68)
 618         # Green Hills C++ Compiler
 619         # 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 $MVME_DIR/lib/classix/libcx.s.a"
 620         ;;
 621       esac
 622       ;;
 623     dgux*)
 624       case "$cc_basename" in
 625         ec++)
 626           ac_cv_prog_cc_pic='-KPIC'
 627           ;;
 628         ghcx)
 629           # Green Hills C++ Compiler
 630           ac_cv_prog_cc_pic='-pic'
 631           ;;
 632         *)
 633           ;;
 634       esac
 635       ;;
 636     freebsd*)
 637       # FreeBSD uses GNU C++
 638       ;;
 639     hpux9* | hpux10* | hpux11*)
 640       case "$cc_basename" in
 641         CC)
 642           ac_cv_prog_cc_wl='-Wl,'
 643           ac_cv_prog_cc_static="${ac_cv_prog_cc_wl}-a ${ac_cv_prog_cc_wl}archive"
 644           ac_cv_prog_cc_pic='+Z'
 645           ;;
 646         aCC)
 647           ac_cv_prog_cc_wl='-Wl,'
 648           ac_cv_prog_cc_static="${ac_cv_prog_cc_wl}-a ${ac_cv_prog_cc_wl}archive"
 649           ac_cv_prog_cc_pic='+Z'
 650           ;;
 651         *)
 652           ;;
 653       esac
 654       ;;
 655     irix5* | irix6*)
 656       case "$cc_basename" in
 657         CC)
 658           ac_cv_prog_cc_wl='-Wl,'
 659           ac_cv_prog_cc_static='-non_shared'
 660           ac_cv_prog_cc_pic='-KPIC'
 661           ;;
 662         *)
 663           ;;
 664       esac
 665       ;;
 666     linux*)
 667       case "$cc_basename" in
 668         KCC)
 669           # KAI C++ Compiler
 670           ac_cv_prog_cc_wl='--backend -Wl,'
 671           ac_cv_prog_cc_pic='-fPIC'
 672           ;;
 673         cxx)
 674           # Compaq C++
 675           # Make sure the PIC flag is empty.  It appears that all Alpha
 676           # Linux and Compaq Tru64 Unix objects are PIC.
 677           ac_cv_prog_cc_pic=
 678           ac_cv_prog_cc_static='-non_shared'
 679           ;;
 680         *)
 681           ;;
 682       esac
 683       ;;
 684     lynxos*)
 685       ;;
 686     m88k*)
 687       ;;
 688     mvs*)
 689       case "$cc_basename" in
 690         cxx)
 691           ac_cv_prog_cc_pic='-W c,exportall'
 692           ;;
 693         *)
 694           ;;
 695       esac
 696       ;;
 697     netbsd*)
 698       ;;
 699     osf3* | osf4* | osf5*)
 700       case "$cc_basename" in
 701         KCC)
 702           ac_cv_prog_cc_wl='--backend -Wl,'
 703           ;;
 704         RCC)
 705           # Rational C++ 2.4.1
 706           ac_cv_prog_cc_pic='-pic'
 707           ;;
 708         cxx)
 709           # Digital/Compaq C++
 710           ac_cv_prog_cc_wl='-Wl,'
 711           # Make sure the PIC flag is empty.  It appears that all Alpha
 712           # Linux and Compaq Tru64 Unix objects are PIC.
 713           ac_cv_prog_cc_pic=
 714           ac_cv_prog_cc_static='-non_shared'
 715           ;;
 716         *)
 717           ;;
 718       esac
 719       ;;
 720     psos*)
 721       ;;
 722     sco*)
 723       case "$cc_basename" in
 724         CC)
 725           ac_cv_prog_cc_pic='-fPIC'
 726           ;;
 727         *)
 728           ;;
 729       esac
 730       ;;
 731     solaris*)
 732       case "$cc_basename" in
 733         CC)
 734           # Sun C++ 4.2, 5.x and Centerline C++
 735           ac_cv_prog_cc_pic='-KPIC'
 736           ac_cv_prog_cc_static='-Bstatic'
 737           ac_cv_prog_cc_wl='-Qoption ld '
 738           ;;
 739         gcx)
 740           # Green Hills C++ Compiler
 741           ac_cv_prog_cc_pic='-PIC'
 742           ;;
 743         *)
 744           ;;
 745       esac
 746       ;;
 747     sunos4*)
 748       case "$cc_basename" in
 749         CC)
 750           # Sun C++ 4.x
 751           ac_cv_prog_cc_pic='-pic'
 752           ac_cv_prog_cc_static='-Bstatic'
 753           ;;
 754         lcc)
 755           # Lucid
 756           ac_cv_prog_cc_pic='-pic'
 757           ;;
 758         *)
 759           ;;
 760       esac
 761       ;;
 762     tandem*)
 763       case "$cc_basename" in
 764         NCC)
 765           # NonStop-UX NCC 3.20
 766           ac_cv_prog_cc_pic='-KPIC'
 767           ;;
 768         *)
 769           ;;
 770       esac
 771       ;;
 772     unixware*)
 773       ;;
 774     vxworks*)
 775       ;;
 776     *)
 777       ac_cv_prog_cc_can_build_shared=no
 778       ;;
 779   esac
 780 fi
 781 ac_cv_prog_cc_pic="$ac_cv_prog_cc_pic -DPIC"
 782
 783
 784 # Figure out "hidden" C++ library dependencies from verbose
 785 # compiler output whening linking a shared library.
 786 cat > conftest.$ac_ext <<EOF
 787 class Foo
 788 {
 789 public:
 790   Foo (void) { a = 0; }
 791 private:
 792   int a;
 793 };
 794 EOF
 795
 796
 797 if eval $ac_compile 2>&5; then
 798   # Parse the compiler output and extract the necessary
 799   # objects, libraries and library flags.
 800
 801   # Sentinel used to keep track of whether or not we are before
 802   # the conftest object file.
 803   pre_test_object_deps_done=no
 804
 805   for p in `eval $output_verbose_link_cmds`; do
 806
 807     case $p in
 808
 809     -L* | -R* | -l*)
 810        # Some compilers place space between "-{L,R}" and the path.
 811        # Remove the space.
 812        if test $p = "-L" \
 813           || test $p = "-R"; then
 814          prev=$p
 815          continue
 816        else
 817          prev=
 818        fi
 819
 820        if test "$pre_test_object_deps_done" = no; then
 821          case $p in
 822          -L* | -R*)
 823            # Internal compiler library paths should come after those
 824            # provided the user.  The postdeps already come after the
 825            # user supplied libs so there is no need to process them.
 826            if test -z "$compiler_lib_search_path"; then
 827              compiler_lib_search_path="${prev}${p}"
 828            else
 829              compiler_lib_search_path="${compiler_lib_search_path} ${prev}${p}"
 830            fi
 831            ;;
 832          # The "-l" case would never come before the object being
 833          # linked, so don't bother handling this case.
 834          esac
 835        else
 836          if test -z "$postdeps"; then
 837            postdeps="${prev}${p}"
 838          else
 839            postdeps="${postdeps} ${prev}${p}"
 840          fi
 841        fi
 842        ;;
 843
 844     *.$objext)
 845        # This assumes that the test object file only shows up
 846        # once in the compiler output.
 847        if test "$p" = "conftest.$objext"; then
 848          pre_test_object_deps_done=yes
 849          continue
 850        fi
 851
 852        if test "$pre_test_object_deps_done" = no; then
 853          if test -z "$predep_objects"; then
 854            predep_objects="$p"
 855          else
 856            predep_objects="$predep_objects $p"
 857          fi
 858        else
 859          if test -z "$postdep_objects"; then
 860            postdep_objects="$p"
 861          else
 862            postdep_objects="$postdep_objects $p"
 863          fi
 864        fi
 865        ;;
 866
 867     *) ;; # Ignore the rest.
 868
 869     esac
 870   done
 871
 872   # Clean up.
 873   rm -f a.out
 874 else
 875   echo "ltcf-cxx.sh: error: problem compiling test program"
 876 fi
 877
 878 $rm -f confest.$objext
 879
 880 case " $postdeps " in
 881 *" -lc "*) need_lc=no ;;
 882 *) need_lc=yes ;;
 883 esac