ltcf-cxx.sh

   1 #### This script is meant to be sourced by ltconfig.
   2
   3 # $Id: ltcf-cxx.sh,v 1.1 2000/07/28 18:04:21 bkoz Exp $
   4
   5 # ltcf-cxx.sh - Create a C++ compiler specific configuration
   6 #
   7 # Copyright (C) 1996-1999,2000 Free Software Foundation, Inc.
   8 # Originally by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996
   9 #
  10 # Original C++ support by:
  11 #    Alexandre Oliva <oliva@lsd.ic.unicamp.br>
  12 #    Ossama Othman <ossama@debian.org>
  13 #    Thomas Thanner <tanner@gmx.de>
  14 #
  15 # This file is free software; you can redistribute it and/or modify it
  16 # under the terms of the GNU General Public License as published by
  17 # the Free Software Foundation; either version 2 of the License, or
  18 # (at your option) any later version.
  19 #
  20 # This program is distributed in the hope that it will be useful, but
  21 # WITHOUT ANY WARRANTY; without even the implied warranty of
  22 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  23 # General Public License for more details.
  24 #
  25 # You should have received a copy of the GNU General Public License
  26 # along with this program; if not, write to the Free Software
  27 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  28 #
  29 # As a special exception to the GNU General Public License, if you
  30 # distribute this file as part of a program that contains a
  31 # configuration script generated by Autoconf, you may include it under
  32 # the same distribution terms that you use for the rest of that program.
  33
  34
  35 # Source file extension for C++ test sources.
  36 ac_ext=cc
  37
  38 # Object file extension for compiled C++ test sources.
  39 objext=o
  40
  41 # Code to be used in simple compile tests
  42 lt_simple_compile_test_code="int some_variable = 0;"
  43
  44 # Code to be used in simple link tests
  45 lt_simple_link_test_code='int main(int, char *[]) { return (0); }'
  46
  47 # C++ compiler
  48 CXX=${CXX-c++}
  49
  50 # ltmain only uses $CC for tagged configurations so make sure $CC is set.
  51 CC=${CC-"$CXX"}
  52 CFLAGS=${CFLAGS-"$CXXFLAGS"}
  53
  54 # Allow CC to be a program name with arguments.
  55 set dummy $CC
  56 compiler=$2
  57 cc_basename=`$echo X"$compiler" | $Xsed -e 's%^.*/%%'`
  58
  59 # Check if we are using GNU gcc  (taken/adapted from configure script)
  60 # We need to check here since "--with-gcc" is set at configure time,
  61 # not ltconfig time!
  62 cat > conftest.$ac_ext <<EOF
  63 #ifdef __GNUC__
  64   yes;
  65 #endif
  66 EOF
  67 if { ac_try='${CC-c++} -E conftest.$ac_ext'; { (eval echo \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
  68   with_gcc=yes
  69
  70   # Set up default GNU C++ configuration
  71
  72   # Check if GNU C++ uses GNU ld as the underlying linker, since the
  73   # archiving commands below assume that GNU ld is being used.
  74   if eval "`$CC -print-prog-name=ld` --version 2>&1" | \
  75       egrep 'GNU ld' > /dev/null; then
  76     with_gnu_ld=yes
  77
  78     archive_cmds='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
  79     archive_expsym_cmds='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
  80
  81     hardcode_libdir_flag_spec='${wl}--rpath ${wl}$libdir'
  82     export_dynamic_flag_spec='${wl}--export-dynamic'
  83
  84     # If archive_cmds runs LD, not CC, wlarc should be empty
  85     # XXX I think wlarc can be eliminated in ltcf-cxx, but I need to
  86     #     investigate it a little bit more. (MM)
  87     wlarc='${wl}'
  88
  89     # ancient GNU ld didn't support --whole-archive et. al.
  90     if eval "`$CC -print-prog-name=ld` --help 2>&1" | \
  91         egrep 'no-whole-archive' > /dev/null; then
  92       whole_archive_flag_spec="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
  93     else
  94       whole_archive_flag_spec=
  95     fi
  96   else
  97     with_gnu_ld=no
  98     wlarc=
  99
 100     # A generic and very simple default shared library creation
 101     # command for GNU C++ for the case where it uses the native
 102     # linker, instead of GNU ld.  If possible, this setting should
 103     # overridden to take advantage of the native linker features on
 104     # the platform it is being used on.
 105     archive_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib'
 106   fi
 107
 108   # Commands to make compiler produce verbose output that lists
 109   # what "hidden" libraries, object files and flags are used when
 110   # linking a shared library.
 111   output_verbose_link_cmds='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | egrep "\-L"'
 112
 113 else
 114   with_gcc=no
 115   with_gnu_ld=no
 116   wlarc=
 117 fi
 118
 119 # In general, the C++ compiler should always link C++ objects.
 120 case $target in
 121 *aix3* | *aix4*)
 122   # AIX just has to be different, doesn't it? :-\
 123   LD=makeC++SharedLib_r
 124   LDFLAGS="$LDFLAGS -p 0"
 125   ;;
 126 *)
 127   LD="$CC"
 128   LDFLAGS="$LDFLAGS"
 129   ;;
 130 esac
 131
 132
 133 # PORTME: fill in a description of your system's C++ link characteristics
 134 case "$host_os" in
 135   aix3*)
 136     # FIXME: insert proper C++ library support
 137     ld_shlibs=no
 138     ;;
 139   aix4*)
 140     # FIXME: insert proper C++ library support
 141     ld_shlibs=no
 142     ;;
 143   chorus*)
 144     case "$cc_basename" in
 145       *)
 146         # FIXME: insert proper C++ library support
 147         ld_shlibs=no
 148         ;;
 149     esac
 150     ;;
 151   dgux*)
 152     case "$cc_basename" in
 153       ec++)
 154         # FIXME: insert proper C++ library support
 155         ld_shlibs=no
 156         ;;
 157       ghcx)
 158         # Green Hills C++ Compiler
 159         # FIXME: insert proper C++ library support
 160         ld_shlibs=no
 161         ;;
 162       *)
 163         # FIXME: insert proper C++ library support
 164         ld_shlibs=no
 165         ;;
 166     esac
 167     ;;
 168   freebsd*)
 169     # FreeBSD uses GNU C++ and GNU ld
 170     # FIXME: insert proper C++ library support
 171     ld_shlibs=no
 172     ;;
 173   hpux*)
 174     case "$cc_basename" in
 175       CC)
 176         # FIXME: insert proper C++ library support
 177         ld_shlibs=no
 178         ;;
 179       aCC)
 180         case "$host_os" in
 181         hpux9*) archive_cmds='$rm $output_objdir/$soname~$CC -b ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $linker_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib' ;;
 182         *) archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags' ;;
 183         esac
 184         hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
 185         hardcode_libdir_separator=:
 186         hardcode_direct=yes
 187         hardcode_minus_L=yes # Not in the search PATH, but as the default
 188                              # location of the library.
 189         export_dynamic_flag_spec='${wl}-E'
 190
 191         # Commands to make compiler produce verbose output that lists
 192         # what "hidden" libraries, object files and flags are used when
 193         # linking a shared library.
 194         #
 195         # There doesn't appear to be a way to prevent this compiler from
 196         # explicitly linking system object files so we need to strip them
 197         # from the output so that they don't get included in the library
 198         # dependencies.
 199         output_verbose_link_cmds='templist=`($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 $list'
 200         ;;
 201       *)
 202         # FIXME: insert proper C++ library support
 203         ld_shlibs=no
 204         ;;
 205     esac
 206     ;;
 207   irix5* | irix6*)
 208     case "$cc_basename" in
 209       CC)
 210         # SGI C++
 211         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 $lib'
 212         ;;
 213       *)
 214         if test "$with_gcc" = yes; then
 215           if test "$with_gnu_ld" = no; then
 216             archive_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $linker_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && echo ${wl}-set_version ${wl}$verstring` ${wl}-update_registry ${wl}${objdir}/so_locations -o $lib'
 217           else
 218             archive_cmds='$LD -shared $predep_objects $libobjs $deplibs $postdep_objects $linker_flags -soname $soname `test -n "$verstring" && echo -set_version $verstring` -o $lib'
 219           fi
 220         fi
 221         hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 222         hardcode_libdir_separator=:
 223         link_all_deplibs=yes
 224         ;;
 225     esac
 226     ;;
 227   linux*)
 228     case "$cc_basename" in
 229       KCC)
 230         # Kuck and Associates, Inc. (KAI) C++ Compiler
 231
 232         # KCC will only create a shared library if the output file
 233         # ends with ".so" (or ".sl" for HP-UX), so rename the library
 234         # to its proper name (with version) after linking.
 235         archive_cmds='templib=`echo $lib | sed -e "s/\.so\..*/\.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $linker_flags --soname $soname -o \$templib; mv \$templib $lib'
 236         archive_expsym_cmds='templib=`echo $lib | sed -e "s/\.so\..*/\.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $linker_flags --soname $soname -o \$templib ${wl}-retain-symbols-file,$export_symbols; mv \$templib $lib'
 237
 238         # Commands to make compiler produce verbose output that lists
 239         # what "hidden" libraries, object files and flags are used when
 240         # linking a shared library.
 241         #
 242         # There doesn't appear to be a way to prevent this compiler from
 243         # explicitly linking system object files so we need to strip them
 244         # from the output so that they don't get included in the library
 245         # dependencies.
 246         output_verbose_link_cmds='templist=`$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 $list'
 247
 248         hardcode_libdir_flag_spec='${wl}--rpath,$libdir'
 249         export_dynamic_flag_spec='${wl}--export-dynamic'
 250
 251         # Archives containing C++ object files must be created using
 252         # "CC -Bstatic", where "CC" is the KAI C++ compiler.
 253         old_archive_cmds='$CC -Bstatic -o $oldlib $oldobjs'
 254         ;;
 255       cxx)
 256         # Compaq C++
 257         archive_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $linker_flags ${wl}-soname $wl$soname -o $lib'
 258         archive_expsym_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $linker_flags ${wl}-soname $wl$soname  -o $lib ${wl}-retain-symbols-file $wl$export_symbols'
 259
 260         runpath_var=LD_RUN_PATH
 261         hardcode_libdir_flag_spec='-rpath $libdir'
 262         hardcode_libdir_separator=:
 263
 264         # Commands to make compiler produce verbose output that lists
 265         # what "hidden" libraries, object files and flags are used when
 266         # linking a shared library.
 267         #
 268         # There doesn't appear to be a way to prevent this compiler from
 269         # explicitly linking system object files so we need to strip them
 270         # from the output so that they don't get included in the library
 271         # dependencies.
 272         output_verbose_link_cmds='templist=`$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 $list'
 273         ;;
 274     esac
 275     ;;
 276   lynxos*)
 277     # FIXME: insert proper C++ library support
 278     ld_shlibs=no
 279     ;;
 280   m88k*)
 281     # FIXME: insert proper C++ library support
 282     ld_shlibs=no
 283     ;;
 284   mvs*)
 285     case "$cc_basename" in
 286       cxx)
 287         # FIXME: insert proper C++ library support
 288         ld_shlibs=no
 289         ;;
 290       *)
 291         # FIXME: insert proper C++ library support
 292         ld_shlibs=no
 293         ;;
 294     esac
 295     ;;
 296   netbsd*)
 297     # FIXME: insert proper C++ library support
 298     ld_shlibs=no
 299     ;;
 300   osf3*)
 301     if test "$with_gcc" = yes && test "$with_gnu_ld" = no; then
 302       allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
 303       archive_cmds='$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 $lib'
 304
 305       hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 306       hardcode_libdir_separator=:
 307
 308       # Commands to make compiler produce verbose output that lists
 309       # what "hidden" libraries, object files and flags are used when
 310       # linking a shared library.
 311       output_verbose_link_cmds='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | egrep "\-L"'
 312     fi
 313
 314     case "$cc_basename" in
 315       KCC)
 316         # Kuck and Associates, Inc. (KAI) C++ Compiler
 317
 318         # KCC will only create a shared library if the output file
 319         # ends with ".so" (or ".sl" for HP-UX), so rename the library
 320         # to its proper name (with version) after linking.
 321         archive_cmds='templib=`echo $lib | sed -e "s/\.so\..*/\.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $linker_flags --soname $soname -o \$templib; mv \$templib $lib'
 322
 323         hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
 324         hardcode_libdir_separator=:
 325
 326         # Archives containing C++ object files must be created using
 327         # "CC -Bstatic", where "CC" is the KAI C++ compiler.
 328         old_archive_cmds='$CC -Bstatic -o $oldlib $oldobjs'
 329
 330         ;;
 331       RCC)
 332         # Rational C++ 2.4.1
 333         # FIXME: insert proper C++ library support
 334         ld_shlibs=no
 335         ;;
 336       cxx)
 337         allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
 338         archive_cmds='$CC -shared${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $linker_flags ${wl}-soname $soname `test -n "$verstring" && echo ${wl}-set_version $verstring` -update_registry ${objdir}/so_locations -o $lib'
 339
 340         hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 341         hardcode_libdir_separator=:
 342
 343         # Commands to make compiler produce verbose output that lists
 344         # what "hidden" libraries, object files and flags are used when
 345         # linking a shared library.
 346         #
 347         # There doesn't appear to be a way to prevent this compiler from
 348         # explicitly linking system object files so we need to strip them
 349         # from the output so that they don't get included in the library
 350         # dependencies.
 351         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 $list'
 352         ;;
 353       *)
 354         # FIXME: insert proper C++ library support
 355         ld_shlibs=no
 356         ;;
 357     esac
 358     ;;
 359   osf4* | osf5*)
 360     if test "$with_gcc" = yes && test "$with_gnu_ld" = no; then
 361       allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
 362       archive_cmds='$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 $lib'
 363
 364       hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 365       hardcode_libdir_separator=:
 366
 367       # Commands to make compiler produce verbose output that lists
 368       # what "hidden" libraries, object files and flags are used when
 369       # linking a shared library.
 370       output_verbose_link_cmds='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | egrep "\-L"'
 371     fi
 372
 373     case "$cc_basename" in
 374       KCC)
 375         # Kuck and Associates, Inc. (KAI) C++ Compiler
 376
 377         # KCC will only create a shared library if the output file
 378         # ends with ".so" (or ".sl" for HP-UX), so rename the library
 379         # to its proper name (with version) after linking.
 380         archive_cmds='templib=`echo $lib | sed -e "s/\.so\..*/\.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $linker_flags --soname $soname -o \$templib; mv \$templib $lib'
 381
 382         hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
 383         hardcode_libdir_separator=:
 384
 385         # Archives containing C++ object files must be created using
 386         # the KAI C++ compiler.
 387         old_archive_cmds='$CC -o $oldlib $oldobjs'
 388         ;;
 389       RCC)
 390         # Rational C++ 2.4.1
 391         # FIXME: insert proper C++ library support
 392         ld_shlibs=no
 393         ;;
 394       cxx)
 395         allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
 396         archive_cmds='$CC -shared${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $linker_flags ${wl}-msym ${wl}-soname $soname `test -n "$verstring" && echo ${wl}-set_version $verstring` -update_registry ${objdir}/so_locations -o $lib'
 397
 398         hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 399         hardcode_libdir_separator=:
 400
 401         # Commands to make compiler produce verbose output that lists
 402         # what "hidden" libraries, object files and flags are used when
 403         # linking a shared library.
 404         #
 405         # There doesn't appear to be a way to prevent this compiler from
 406         # explicitly linking system object files so we need to strip them
 407         # from the output so that they don't get included in the library
 408         # dependencies.
 409         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 $list'
 410         ;;
 411       *)
 412         # FIXME: insert proper C++ library support
 413         ld_shlibs=no
 414         ;;
 415     esac
 416     ;;
 417   psos*)
 418     # FIXME: insert proper C++ library support
 419     ld_shlibs=no
 420     ;;
 421   sco*)
 422     case "$cc_basename" in
 423       CC)
 424         # FIXME: insert proper C++ library support
 425         ld_shlibs=no
 426         ;;
 427       *)
 428         # FIXME: insert proper C++ library support
 429         ld_shlibs=no
 430         ;;
 431     esac
 432     ;;
 433   sunos4*)
 434     case "$cc_basename" in
 435       CC)
 436         # Sun C++ 4.x
 437         # FIXME: insert proper C++ library support
 438         ld_shlibs=no
 439         ;;
 440       lcc)
 441         # Lucid
 442         # FIXME: insert proper C++ library support
 443         ld_shlibs=no
 444         ;;
 445       *)
 446         # FIXME: insert proper C++ library support
 447         ld_shlibs=no
 448         ;;
 449     esac
 450     ;;
 451   solaris*)
 452     case "$cc_basename" in
 453       CC)
 454         # Sun C++ 4.2, 5.x and Centerline C++
 455         no_undefined_flag=' -ztext'
 456         archive_cmds='$CC -G${allow_undefined_flag} -nolib -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags'
 457         archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
 458         $CC -G${allow_undefined_flag} -nolib ${wl}-M ${wl}$lib.exp -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags~$rm $lib.exp'
 459
 460         hardcode_libdir_flag_spec='-R$libdir'
 461         hardcode_shlibpath_var=no
 462         case "$host_os" in
 463           solaris2.[0-5] | solaris2.[0-5].*) ;;
 464           *)
 465             # The C++ compiler is used as linker so we must use $wl
 466             # flag to pass the commands to the underlying system
 467             # linker.
 468             # Supported since Solaris 2.6 (maybe 2.5.1?)
 469             whole_archive_flag_spec='${wl}-z ${wl}allextract$convenience ${wl}-z ${wl}defaultextract'
 470             ;;
 471         esac
 472         link_all_deplibs=yes
 473
 474         # Commands to make compiler produce verbose output that lists
 475         # what "hidden" libraries, object files and flags are used when
 476         # linking a shared library.
 477         #
 478         # There doesn't appear to be a way to prevent this compiler from
 479         # explicitly linking system object files so we need to strip them
 480         # from the output so that they don't get included in the library
 481         # dependencies.
 482         output_verbose_link_cmds='templist=`$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 $list'
 483
 484         # Archives containing C++ object files must be created using
 485         # "CC -xar", where "CC" is the Sun C++ compiler.  This is
 486         # necessary to make sure instantiated templates are included
 487         # in the archive.
 488         old_archive_cmds='$CC -xar -o $oldlib $oldobjs'
 489         ;;
 490       gcx)
 491         # Green Hills C++ Compiler
 492         archive_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $linker_flags ${wl}-h $wl$soname -o $lib'
 493
 494         # The C++ compiler must be used to create the archive.
 495         old_archive_cmds='$CC $LDFLAGS -archive -o $oldlib $oldobjs'
 496         ;;
 497       *)
 498         # GNU C++ compiler with Solaris linker
 499         if test "$with_gcc" = yes && test "$with_gnu_ld" = no; then
 500           if $CC --version | egrep -v '^2\.7' > /dev/null; then
 501             archive_cmds='$LD -shared -nostdlib $LDFLAGS $predep_objects $libobjs $deplibs $postdep_objects $linker_flags ${wl}-h $wl$soname -o $lib'
 502             archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
 503                 $LD -shared -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags~$rm $lib.exp'
 504
 505             # Commands to make compiler produce verbose output that lists
 506             # what "hidden" libraries, object files and flags are used when
 507             # linking a shared library.
 508             output_verbose_link_cmds="$CC -shared $CFLAGS -v conftest.$objext 2>&1 | egrep \"\-L\""
 509           else
 510             # g++ 2.7 appears to require `-G' NOT `-shared' on this
 511             # platform.
 512             archive_cmds='$LD -G -nostdlib $LDFLAGS $predep_objects $libobjs $deplibs $postdep_objects $linker_flags ${wl}-h $wl$soname -o $lib'
 513             archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
 514                 $LD -G -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags~$rm $lib.exp'
 515
 516             # Commands to make compiler produce verbose output that lists
 517             # what "hidden" libraries, object files and flags are used when
 518             # linking a shared library.
 519             output_verbose_link_cmds="$CC -G $CFLAGS -v conftest.$objext 2>&1 | egrep \"\-L\""
 520           fi
 521
 522           hardcode_libdir_flag_spec='${wl}-R $wl$libdir'
 523         fi
 524         ;;
 525     esac
 526     ;;
 527   tandem*)
 528     case "$cc_basename" in
 529       NCC)
 530         # NonStop-UX NCC 3.20
 531         # FIXME: insert proper C++ library support
 532         ld_shlibs=no
 533         ;;
 534       *)
 535         # FIXME: insert proper C++ library support
 536         ld_shlibs=no
 537         ;;
 538     esac
 539     ;;
 540   unixware*)
 541     # FIXME: insert proper C++ library support
 542     ld_shlibs=no
 543     ;;
 544   vxworks*)
 545     # FIXME: insert proper C++ library support
 546     ld_shlibs=no
 547     ;;
 548   *)
 549     # FIXME: insert proper C++ library support
 550     ld_shlibs=no
 551     ;;
 552 esac
 553
 554
 555 ## Compiler Characteristics: PIC flags, static flags, etc
 556
 557 # We don't use cached values here since only the C compiler
 558 # characteristics should be cached.
 559 ac_cv_prog_cc_pic=
 560 ac_cv_prog_cc_shlib=
 561 ac_cv_prog_cc_wl=
 562 ac_cv_prog_cc_static=
 563 ac_cv_prog_cc_no_builtin=
 564 ac_cv_prog_cc_can_build_shared=$can_build_shared
 565
 566 # It is not enough to reset these cached values, they must be unset.
 567 unset ac_cv_prog_cc_pic_works
 568 unset ac_cv_prog_cc_static_works
 569
 570 if test "$with_gcc" = yes; then
 571   ac_cv_prog_cc_wl='-Wl,'
 572   ac_cv_prog_cc_static='-static'
 573
 574   case "$host_os" in
 575   beos* | irix5* | irix6* | osf3* | osf4* | osf5*)
 576     # PIC is the default for these OSes.
 577     ;;
 578   aix*)
 579     # Below there is a dirty hack to force normal static linking with -ldl
 580     # The problem is because libdl dynamically linked with both libc and
 581     # libC (AIX C++ library), which obviously doesn't included in libraries
 582     # list by gcc. This cause undefined symbols with -static flags.
 583     # This hack allows C programs to be linked with "-static -ldl", but
 584     # we not sure about C++ programs.
 585     ac_cv_prog_cc_static="$ac_cv_prog_cc_static ${ac_cv_prog_cc_wl}-lC"
 586     ;;
 587   cygwin* | mingw* | os2*)
 588     # This hack is so that the source file can tell whether it is being
 589     # built for inclusion in a dll (and should export symbols for example).
 590     ac_cv_prog_cc_pic='-DDLL_EXPORT'
 591     ;;
 592   amigaos*)
 593     # FIXME: we need at least 68020 code to build shared libraries, but
 594     # adding the `-m68020' flag to GCC prevents building anything better,
 595     # like `-m68040'.
 596     ac_cv_prog_cc_pic='-m68020 -resident32 -malways-restore-a4'
 597     ;;
 598   sysv4*MP*)
 599     if test -d /usr/nec; then
 600       ac_cv_prog_cc_pic=-Kconform_pic
 601     fi
 602     ;;
 603   *)
 604     ac_cv_prog_cc_pic='-fPIC'
 605     ;;
 606   esac
 607 else
 608   case "$host_os" in
 609     aix4*)
 610       # All AIX code is PIC.
 611       ;;
 612     chorus*)
 613       case "$cc_basename" in
 614       cxch68)
 615         # Green Hills C++ Compiler
 616         # 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 $MVME_DIR/lib/classix/libcx.s.a"
 617         ;;
 618       esac
 619       ;;
 620     dgux*)
 621       case "$cc_basename" in
 622         ec++)
 623           ac_cv_prog_cc_pic='-KPIC'
 624           ;;
 625         ghcx)
 626           # Green Hills C++ Compiler
 627           ac_cv_prog_cc_pic='-pic'
 628           ;;
 629         *)
 630           ;;
 631       esac
 632       ;;
 633     freebsd*)
 634       # FreeBSD uses GNU C++
 635       ;;
 636     hpux9* | hpux10* | hpux11*)
 637       case "$cc_basename" in
 638         CC)
 639           ac_cv_prog_cc_wl='-Wl,'
 640           ac_cv_prog_cc_static="${ac_cv_prog_cc_wl}-a ${ac_cv_prog_cc_wl}archive"
 641           ac_cv_prog_cc_pic='+Z'
 642           ;;
 643         aCC)
 644           ac_cv_prog_cc_wl='-Wl,'
 645           ac_cv_prog_cc_static="${ac_cv_prog_cc_wl}-a ${ac_cv_prog_cc_wl}archive"
 646           ac_cv_prog_cc_pic='+Z'
 647           ;;
 648         *)
 649           ;;
 650       esac
 651       ;;
 652     irix5* | irix6*)
 653       case "$cc_basename" in
 654         CC)
 655           ac_cv_prog_cc_wl='-Wl,'
 656           ac_cv_prog_cc_static='-non_shared'
 657           ac_cv_prog_cc_pic='-KPIC'
 658           ;;
 659         *)
 660           ;;
 661       esac
 662       ;;
 663     linux*)
 664       case "$cc_basename" in
 665         KCC)
 666           # KAI C++ Compiler
 667           ac_cv_prog_cc_wl='--backend -Wl,'
 668           ac_cv_prog_cc_pic='-fPIC'
 669           ;;
 670         cxx)
 671           # Compaq C++
 672           # Make sure the PIC flag is empty.  It appears that all Alpha
 673           # Linux and Compaq Tru64 Unix objects are PIC.
 674           ac_cv_prog_cc_pic=
 675           ac_cv_prog_cc_static='-non_shared'
 676           ;;
 677         *)
 678           ;;
 679       esac
 680       ;;
 681     lynxos*)
 682       ;;
 683     m88k*)
 684       ;;
 685     mvs*)
 686       case "$cc_basename" in
 687         cxx)
 688           ac_cv_prog_cc_pic='-W c,exportall'
 689           ;;
 690         *)
 691           ;;
 692       esac
 693       ;;
 694     netbsd*)
 695       ;;
 696     osf3* | osf4* | osf5*)
 697       case "$cc_basename" in
 698         KCC)
 699           ac_cv_prog_cc_wl='--backend -Wl,'
 700           ;;
 701         RCC)
 702           # Rational C++ 2.4.1
 703           ac_cv_prog_cc_pic='-pic'
 704           ;;
 705         cxx)
 706           # Digital/Compaq C++
 707           ac_cv_prog_cc_wl='-Wl,'
 708           # Make sure the PIC flag is empty.  It appears that all Alpha
 709           # Linux and Compaq Tru64 Unix objects are PIC.
 710           ac_cv_prog_cc_pic=
 711           ac_cv_prog_cc_static='-non_shared'
 712           ;;
 713         *)
 714           ;;
 715       esac
 716       ;;
 717     psos*)
 718       ;;
 719     sco*)
 720       case "$cc_basename" in
 721         CC)
 722           ac_cv_prog_cc_pic='-fPIC'
 723           ;;
 724         *)
 725           ;;
 726       esac
 727       ;;
 728     solaris*)
 729       case "$cc_basename" in
 730         CC)
 731           # Sun C++ 4.2, 5.x and Centerline C++
 732           ac_cv_prog_cc_pic='-KPIC'
 733           ac_cv_prog_cc_static='-Bstatic'
 734           ac_cv_prog_cc_wl='-Qoption ld '
 735           ;;
 736         gcx)
 737           # Green Hills C++ Compiler
 738           ac_cv_prog_cc_pic='-PIC'
 739           ;;
 740         *)
 741           ;;
 742       esac
 743       ;;
 744     sunos4*)
 745       case "$cc_basename" in
 746         CC)
 747           # Sun C++ 4.x
 748           ac_cv_prog_cc_pic='-pic'
 749           ac_cv_prog_cc_static='-Bstatic'
 750           ;;
 751         lcc)
 752           # Lucid
 753           ac_cv_prog_cc_pic='-pic'
 754           ;;
 755         *)
 756           ;;
 757       esac
 758       ;;
 759     tandem*)
 760       case "$cc_basename" in
 761         NCC)
 762           # NonStop-UX NCC 3.20
 763           ac_cv_prog_cc_pic='-KPIC'
 764           ;;
 765         *)
 766           ;;
 767       esac
 768       ;;
 769     unixware*)
 770       ;;
 771     vxworks*)
 772       ;;
 773     *)
 774       ac_cv_prog_cc_can_build_shared=no
 775       ;;
 776   esac
 777 fi
 778 ac_cv_prog_cc_pic="$ac_cv_prog_cc_pic -DPIC"
 779
 780
 781 # Figure out "hidden" C++ library dependencies from verbose
 782 # compiler output whening linking a shared library.
 783 cat > conftest.$ac_ext <<EOF
 784 class Foo
 785 {
 786 public:
 787   Foo (void) { a = 0; }
 788 private:
 789   int a;
 790 };
 791 EOF
 792
 793
 794 if eval $ac_compile 2>&5; then
 795   # Parse the compiler output and extract the necessary
 796   # objects, libraries and library flags.
 797
 798   # Sentinel used to keep track of whether or not we are before
 799   # the conftest object file.
 800   pre_test_object_deps_done=no
 801
 802   for p in `eval $output_verbose_link_cmds`; do
 803
 804     case $p in
 805
 806     -L* | -R* | -l*)
 807        # Some compilers place space between "-{L,R}" and the path.
 808        # Remove the space.
 809        if test $p = "-L" \
 810           || test $p = "-R"; then
 811          prev=$p
 812          continue
 813        else
 814          prev=
 815        fi
 816
 817        if test "$pre_test_object_deps_done" = no; then
 818          case $p in
 819          -L* | -R*)
 820            # Internal compiler library paths should come after those
 821            # provided the user.  The postdeps already come after the
 822            # user supplied libs so there is no need to process them.
 823            if test -z "$compiler_lib_search_path"; then
 824              compiler_lib_search_path="${prev}${p}"
 825            else
 826              compiler_lib_search_path="${compiler_lib_search_path} ${prev}${p}"
 827            fi
 828            ;;
 829          # The "-l" case would never come before the object being
 830          # linked, so don't bother handling this case.
 831          esac
 832        else
 833          if test -z "$postdeps"; then
 834            postdeps="${prev}${p}"
 835          else
 836            postdeps="${postdeps} ${prev}${p}"
 837          fi
 838        fi
 839        ;;
 840
 841     *.$objext)
 842        # This assumes that the test object file only shows up
 843        # once in the compiler output.
 844        if test "$p" = "conftest.$objext"; then
 845          pre_test_object_deps_done=yes
 846          continue
 847        fi
 848
 849        if test "$pre_test_object_deps_done" = no; then
 850          if test -z "$predep_objects"; then
 851            predep_objects="$p"
 852          else
 853            predep_objects="$predep_objects $p"
 854          fi
 855        else
 856          if test -z "$postdep_objects"; then
 857            postdep_objects="$p"
 858          else
 859            postdep_objects="$postdep_objects $p"
 860          fi
 861        fi
 862        ;;
 863
 864     *) ;; # Ignore the rest.
 865
 866     esac
 867   done
 868
 869   # Clean up.
 870   rm -f a.out
 871 else
 872   echo "ltcf-cxx.sh: error: problem compiling test program"
 873 fi
 874
 875 $rm -f confest.$objext
 876
 877 case " $postdeps " in
 878 *" -lc "*) need_lc=no ;;
 879 *) need_lc=yes ;;
 880 esac