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, 2001 Free Software Foundation, Inc.
   6 # Originally by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996
   7 #
   8 # Original C++ support by:Gary V. Vaughan <gvv@techie.com>
   9 #    Alexandre Oliva <oliva@lsd.ic.unicamp.br>
  10 #    Ossama Othman <ossama@debian.org>
  11 #    Thomas Thanner <tanner@gmx.de>
  12 #
  13 # This file is free software; you can redistribute it and/or modify it
  14 # under the terms of the GNU General Public License as published by
  15 # the Free Software Foundation; either version 2 of the License, or
  16 # (at your option) any later version.
  17 #
  18 # This program is distributed in the hope that it will be useful, but
  19 # WITHOUT ANY WARRANTY; without even the implied warranty of
  20 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  21 # General Public License for more details.
  22 #
  23 # You should have received a copy of the GNU General Public License
  24 # along with this program; if not, write to the Free Software
  25 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  26 #
  27 # As a special exception to the GNU General Public License, if you
  28 # distribute this file as part of a program that contains a
  29 # configuration script generated by Autoconf, you may include it under
  30 # the same distribution terms that you use for the rest of that program.
  31
  32
  33 # Source file extension for C++ test sources.
  34 ac_ext=cc
  35
  36 # Object file extension for compiled C++ test sources.
  37 objext=o
  38
  39 # Code to be used in simple compile tests
  40 lt_simple_compile_test_code="int some_variable = 0;"
  41
  42 # Code to be used in simple link tests
  43 lt_simple_link_test_code='int main(int, char *[]) { return (0); }'
  44
  45 # C++ compiler
  46 CXX=${CXX-c++}
  47
  48 # ltmain only uses $CC for tagged configurations so make sure $CC is set.
  49 CC=${CC-"$CXX"}
  50 CFLAGS=${CFLAGS-"$CXXFLAGS"}
  51
  52 # Allow CC 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 # PORTME: fill in a description of your system's C++ link characteristics
 118 case $host_os in
 119   aix3*)
 120     # FIXME: insert proper C++ library support
 121     ld_shlibs=no
 122     ;;
 123   aix4* | aix5*)
 124     archive_cmds=''
 125     hardcode_direct=yes
 126     hardcode_libdir_separator=':'
 127     link_all_deplibs=yes
 128     # When large executables or shared objects are built, AIX ld can
 129     # have problems creating the table of contents.  If linking a library
 130     # or program results in "error TOC overflow" add -mminimal-toc to
 131     # CXXFLAGS/CFLAGS for g++/gcc.  In the cases where that is not
 132     # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
 133     if test "$with_gcc" = yes; then
 134       case $host_os in aix4.[012]|aix4.[012].*)
 135       # We only want to do this on AIX 4.2 and lower, the check
 136       # below for broken collect2 doesn't work under 4.3+
 137         collect2name=`${CC} -print-prog-name=collect2`
 138         if test -f "$collect2name" && \
 139            strings "$collect2name" | grep resolve_lib_name >/dev/null
 140         then
 141           # We have reworked collect2
 142           hardcode_direct=yes
 143         else
 144           # We have old collect2
 145           hardcode_direct=unsupported
 146           # It fails to find uninstalled libraries when the uninstalled
 147           # path is not listed in the libpath.  Setting hardcode_minus_L
 148           # to unsupported forces relinking
 149           hardcode_minus_L=yes
 150           hardcode_libdir_flag_spec='-L$libdir'
 151           hardcode_libdir_separator=
 152         fi
 153       esac
 154       shared_flag='-shared'
 155     else
 156       # not using gcc
 157       if test "$host_cpu" = ia64; then
 158         shared_flag='${wl}-G'
 159       else
 160         shared_flag='${wl}-bM:SRE'
 161       fi
 162     fi
 163
 164     if test "$host_cpu" = ia64; then
 165       # On IA64, the linker does run time linking by default, so we don't
 166       # have to do anything special.
 167       aix_use_runtimelinking=no
 168       exp_sym_flag='-Bexport'
 169       no_entry_flag=""
 170     else
 171       # Test if we are trying to use run time linking, or normal AIX style linking.
 172       # If -brtl is somewhere in LDFLAGS, we need to do run time linking.
 173       aix_use_runtimelinking=no
 174       for ld_flag in $LDFLAGS; do
 175         if (test $ld_flag = "-brtl" || test $ld_flag = "-Wl,-brtl" ); then
 176           aix_use_runtimelinking=yes
 177           break
 178         fi
 179       done
 180       exp_sym_flag='-bexport'
 181       no_entry_flag='-bnoentry'
 182     fi
 183     # It seems that -bexpall does not export symbols beginning with
 184     # underscore (_), so it is better to generate a list of symbols to export.
 185     always_export_symbols=yes
 186     if test "$aix_use_runtimelinking" = yes; then
 187       hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:/usr/lib:/lib'
 188       allow_undefined_flag=' -Wl,-G'
 189       archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${allow_undefined_flag} '"\${wl}$no_entry_flag \${wl}-brtl \${wl}$exp_sym_flag:\$export_symbols"
 190      else
 191       if test "$host_cpu" = ia64; then
 192         hardcode_libdir_flag_spec='${wl}-R $libdir:/usr/lib:/lib'
 193         allow_undefined_flag="-z nodefs"
 194         archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${wl}${allow_undefined_flag} '"\${wl}$no_entry_flag \${wl}$exp_sym_flag:\$export_symbols"
 195       else
 196         hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:/usr/lib:/lib'
 197         # Warning - without using the other run time loading flags, -berok will
 198         #           link without error, but may produce a broken library.
 199         no_undefined_flag='${wl}-bnoerok'
 200         allow_undefined_flag='${wl}-berok"
 201         # -bexpall does not export symbols beginning with underscore (_)
 202         always_export_symbols=yes
 203         # Exported symbols can be pulled into shared objects from archives
 204         whole_archive_flag_spec=' '
 205         build_libtool_need_lc=yes
 206         # This is similar to how AIX traditionally builds it's shared libraries.
 207         archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${wl}-bE:$export_symbols ${wl}-bnoentry${allow_undefined_flag}~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$soname'
 208       fi
 209     fi
 210     ;;
 211   chorus*)
 212     case $cc_basename in
 213       *)
 214         # FIXME: insert proper C++ library support
 215         ld_shlibs=no
 216         ;;
 217     esac
 218     ;;
 219   dgux*)
 220     case $cc_basename in
 221       ec++)
 222         # FIXME: insert proper C++ library support
 223         ld_shlibs=no
 224         ;;
 225       ghcx)
 226         # Green Hills C++ Compiler
 227         # FIXME: insert proper C++ library support
 228         ld_shlibs=no
 229         ;;
 230       *)
 231         # FIXME: insert proper C++ library support
 232         ld_shlibs=no
 233         ;;
 234     esac
 235     ;;
 236   freebsd*)
 237     # FreeBSD uses GNU C++ and GNU ld
 238     # FIXME: insert proper C++ library support
 239     ld_shlibs=no
 240     ;;
 241   hpux*)
 242     hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
 243     hardcode_libdir_separator=:
 244     hardcode_direct=yes
 245     hardcode_minus_L=yes # Not in the search PATH, but as the default
 246                          # location of the library.
 247     export_dynamic_flag_spec='${wl}-E'
 248
 249     case $cc_basename in
 250       CC)
 251         # FIXME: insert proper C++ library support
 252         ld_shlibs=no
 253         ;;
 254       aCC)
 255         case $host_os in
 256         hpux9*) archive_cmds='$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 $lib' ;;
 257         *) archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' ;;
 258         esac
 259         # Commands to make compiler produce verbose output that lists
 260         # what "hidden" libraries, object files and flags are used when
 261         # linking a shared library.
 262         #
 263         # There doesn't appear to be a way to prevent this compiler from
 264         # explicitly linking system object files so we need to strip them
 265         # from the output so that they don't get included in the library
 266         # dependencies.
 267         output_verbose_link_cmds='templist=`($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'
 268         ;;
 269       *)
 270         if test $with_gcc = yes; then
 271           case "$host_os" in
 272           hpux9*) archive_cmds='$rm $output_objdir/$soname~$CC -shared -fPIC ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib' ;;
 273           *) archive_cmds='$CC -shared -fPIC ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' ;;
 274           esac
 275         else
 276           # FIXME: insert proper C++ library support
 277           ld_shlibs=no
 278         fi
 279         ;;
 280     esac
 281     ;;
 282   irix5* | irix6*)
 283     case $cc_basename in
 284       CC)
 285         # SGI C++
 286         archive_cmds='$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 $lib'
 287
 288         # Archives containing C++ object files must be created using
 289         # "CC -ar", where "CC" is the IRIX C++ compiler.  This is
 290         # necessary to make sure instantiated templates are included
 291         # in the archive.
 292         old_archive_cmds='$CC -ar -WR,-u -o $oldlib $oldobjs'
 293         ;;
 294       *)
 295         if test "$with_gcc" = yes; then
 296           if test "$with_gnu_ld" = no; then
 297             archive_cmds='$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 $lib'
 298           else
 299             archive_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $linker_flags -soname $soname `test -n "$verstring" && echo -set_version $verstring` -o $lib'
 300           fi
 301         fi
 302         hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 303         hardcode_libdir_separator=:
 304         link_all_deplibs=yes
 305         ;;
 306     esac
 307     ;;
 308   linux*)
 309     case $cc_basename in
 310       KCC)
 311         # Kuck and Associates, Inc. (KAI) C++ Compiler
 312
 313         # KCC will only create a shared library if the output file
 314         # ends with ".so" (or ".sl" for HP-UX), so rename the library
 315         # to its proper name (with version) after linking.
 316         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'
 317         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 $lib'
 318
 319         # Commands to make compiler produce verbose output that lists
 320         # what "hidden" libraries, object files and flags are used when
 321         # linking a shared library.
 322         #
 323         # There doesn't appear to be a way to prevent this compiler from
 324         # explicitly linking system object files so we need to strip them
 325         # from the output so that they don't get included in the library
 326         # dependencies.
 327         output_verbose_link_cmds='templist=`$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 $list'
 328
 329         hardcode_libdir_flag_spec='${wl}--rpath,$libdir'
 330         export_dynamic_flag_spec='${wl}--export-dynamic'
 331
 332         # Archives containing C++ object files must be created using
 333         # "CC -Bstatic", where "CC" is the KAI C++ compiler.
 334         old_archive_cmds='$CC -Bstatic -o $oldlib $oldobjs'
 335         ;;
 336       cxx)
 337         # Compaq C++
 338         archive_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
 339         archive_expsym_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname  -o $lib ${wl}-retain-symbols-file $wl$export_symbols'
 340
 341         runpath_var=LD_RUN_PATH
 342         hardcode_libdir_flag_spec='-rpath $libdir'
 343         hardcode_libdir_separator=:
 344
 345         # Commands to make compiler produce verbose output that lists
 346         # what "hidden" libraries, object files and flags are used when
 347         # linking a shared library.
 348         #
 349         # There doesn't appear to be a way to prevent this compiler from
 350         # explicitly linking system object files so we need to strip them
 351         # from the output so that they don't get included in the library
 352         # dependencies.
 353         output_verbose_link_cmds='templist=`$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'
 354         ;;
 355     esac
 356     ;;
 357   lynxos*)
 358     # FIXME: insert proper C++ library support
 359     ld_shlibs=no
 360     ;;
 361   m88k*)
 362     # FIXME: insert proper C++ library support
 363     ld_shlibs=no
 364     ;;
 365   mvs*)
 366     case $cc_basename in
 367       cxx)
 368         # FIXME: insert proper C++ library support
 369         ld_shlibs=no
 370         ;;
 371       *)
 372         # FIXME: insert proper C++ library support
 373         ld_shlibs=no
 374         ;;
 375     esac
 376     ;;
 377   netbsd*)
 378     # NetBSD uses g++ - do we need to do anything?
 379     ;;
 380   osf3*)
 381     if test "$with_gcc" = yes && test "$with_gnu_ld" = no; then
 382       allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
 383       archive_cmds='$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 $lib'
 384
 385       hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 386       hardcode_libdir_separator=:
 387
 388       # Commands to make compiler produce verbose output that lists
 389       # what "hidden" libraries, object files and flags are used when
 390       # linking a shared library.
 391       output_verbose_link_cmds='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | egrep "\-L"'
 392     fi
 393
 394     case $cc_basename in
 395       KCC)
 396         # Kuck and Associates, Inc. (KAI) C++ Compiler
 397
 398         # KCC will only create a shared library if the output file
 399         # ends with ".so" (or ".sl" for HP-UX), so rename the library
 400         # to its proper name (with version) after linking.
 401         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 $lib'
 402
 403         hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
 404         hardcode_libdir_separator=:
 405
 406         # Archives containing C++ object files must be created using
 407         # "CC -Bstatic", where "CC" is the KAI C++ compiler.
 408         old_archive_cmds='$CC -Bstatic -o $oldlib $oldobjs'
 409
 410         ;;
 411       RCC)
 412         # Rational C++ 2.4.1
 413         # FIXME: insert proper C++ library support
 414         ld_shlibs=no
 415         ;;
 416       cxx)
 417         allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
 418         archive_cmds='$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 $lib'
 419
 420         hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 421         hardcode_libdir_separator=:
 422
 423         # Commands to make compiler produce verbose output that lists
 424         # what "hidden" libraries, object files and flags are used when
 425         # linking a shared library.
 426         #
 427         # There doesn't appear to be a way to prevent this compiler from
 428         # explicitly linking system object files so we need to strip them
 429         # from the output so that they don't get included in the library
 430         # dependencies.
 431         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 $list'
 432         ;;
 433       *)
 434         # FIXME: insert proper C++ library support
 435         ld_shlibs=no
 436         ;;
 437     esac
 438     ;;
 439   osf4* | osf5*)
 440     if test "$with_gcc" = yes && test "$with_gnu_ld" = no; then
 441       allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
 442       archive_cmds='$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 $lib'
 443
 444       hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 445       hardcode_libdir_separator=:
 446
 447       # Commands to make compiler produce verbose output that lists
 448       # what "hidden" libraries, object files and flags are used when
 449       # linking a shared library.
 450       output_verbose_link_cmds='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | egrep "\-L"'
 451     fi
 452
 453     case $cc_basename in
 454       KCC)
 455         # Kuck and Associates, Inc. (KAI) C++ Compiler
 456
 457         # KCC will only create a shared library if the output file
 458         # ends with ".so" (or ".sl" for HP-UX), so rename the library
 459         # to its proper name (with version) after linking.
 460         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 $lib'
 461
 462         hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
 463         hardcode_libdir_separator=:
 464
 465         # Archives containing C++ object files must be created using
 466         # the KAI C++ compiler.
 467         old_archive_cmds='$CC -o $oldlib $oldobjs'
 468         ;;
 469       RCC)
 470         # Rational C++ 2.4.1
 471         # FIXME: insert proper C++ library support
 472         ld_shlibs=no
 473         ;;
 474       cxx)
 475         allow_undefined_flag=' -expect_unresolved \*'
 476         archive_cmds='$CC -shared${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${objdir}/so_locations -o $lib'
 477
 478         hardcode_libdir_flag_spec='-rpath $libdir'
 479         hardcode_libdir_separator=:
 480
 481         # Commands to make compiler produce verbose output that lists
 482         # what "hidden" libraries, object files and flags are used when
 483         # linking a shared library.
 484         #
 485         # There doesn't appear to be a way to prevent this compiler from
 486         # explicitly linking system object files so we need to strip them
 487         # from the output so that they don't get included in the library
 488         # dependencies.
 489         output_verbose_link_cmds='templist=`$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'
 490         ;;
 491       *)
 492         # FIXME: insert proper C++ library support
 493         ld_shlibs=no
 494         ;;
 495     esac
 496     ;;
 497   psos*)
 498     # FIXME: insert proper C++ library support
 499     ld_shlibs=no
 500     ;;
 501   sco*)
 502     case $cc_basename in
 503       CC)
 504         # FIXME: insert proper C++ library support
 505         ld_shlibs=no
 506         ;;
 507       *)
 508         # FIXME: insert proper C++ library support
 509         ld_shlibs=no
 510         ;;
 511     esac
 512     ;;
 513   sunos4*)
 514     case $cc_basename in
 515       CC)
 516         # Sun C++ 4.x
 517         # FIXME: insert proper C++ library support
 518         ld_shlibs=no
 519         ;;
 520       lcc)
 521         # Lucid
 522         # FIXME: insert proper C++ library support
 523         ld_shlibs=no
 524         ;;
 525       *)
 526         # FIXME: insert proper C++ library support
 527         ld_shlibs=no
 528         ;;
 529     esac
 530     ;;
 531   solaris*)
 532     case $cc_basename in
 533       CC)
 534         # Sun C++ 4.2, 5.x and Centerline C++
 535         no_undefined_flag=' -ztext'
 536         archive_cmds='$CC -G${allow_undefined_flag} -nolib -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
 537         archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
 538         $CC -G${allow_undefined_flag} -nolib ${wl}-M ${wl}$lib.exp -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$rm $lib.exp'
 539
 540         hardcode_libdir_flag_spec='-R$libdir'
 541         hardcode_shlibpath_var=no
 542         case $host_os in
 543           solaris2.[0-5] | solaris2.[0-5].*) ;;
 544           *)
 545             # The C++ compiler is used as linker so we must use $wl
 546             # flag to pass the commands to the underlying system
 547             # linker.
 548             # Supported since Solaris 2.6 (maybe 2.5.1?)
 549             whole_archive_flag_spec='${wl}-z ${wl}allextract$convenience ${wl}-z ${wl}defaultextract'
 550             ;;
 551         esac
 552         link_all_deplibs=yes
 553
 554         # Commands to make compiler produce verbose output that lists
 555         # what "hidden" libraries, object files and flags are used when
 556         # linking a shared library.
 557         #
 558         # There doesn't appear to be a way to prevent this compiler from
 559         # explicitly linking system object files so we need to strip them
 560         # from the output so that they don't get included in the library
 561         # dependencies.
 562         output_verbose_link_cmds='templist=`$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 $list'
 563
 564         # Archives containing C++ object files must be created using
 565         # "CC -xar", where "CC" is the Sun C++ compiler.  This is
 566         # necessary to make sure instantiated templates are included
 567         # in the archive.
 568         old_archive_cmds='$CC -xar -o $oldlib $oldobjs'
 569         ;;
 570       gcx)
 571         # Green Hills C++ Compiler
 572         archive_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'
 573
 574         # The C++ compiler must be used to create the archive.
 575         old_archive_cmds='$CC $LDFLAGS -archive -o $oldlib $oldobjs'
 576         ;;
 577       *)
 578         # GNU C++ compiler with Solaris linker
 579         if test "$with_gcc" = yes && test "$with_gnu_ld" = no; then
 580           if $CC --version | egrep -v '^2\.7' > /dev/null; then
 581             archive_cmds='$CC -shared -nostdlib $LDFLAGS $predep_objects $libobjs $deplibs $postdep_objects $linker_flags ${wl}-h $wl$soname -o $lib'
 582             archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
 583                 $CC -shared -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags~$rm $lib.exp'
 584
 585             # Commands to make compiler produce verbose output that lists
 586             # what "hidden" libraries, object files and flags are used when
 587             # linking a shared library.
 588             output_verbose_link_cmds="$CC -shared $CFLAGS -v conftest.$objext 2>&1 | egrep \"\-L\""
 589           else
 590             # g++ 2.7 appears to require `-G' NOT `-shared' on this
 591             # platform.
 592             archive_cmds='$CC -G -nostdlib $LDFLAGS $predep_objects $libobjs $deplibs $postdep_objects $linker_flags ${wl}-h $wl$soname -o $lib'
 593             archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
 594                 $CC -G -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags~$rm $lib.exp'
 595
 596             # Commands to make compiler produce verbose output that lists
 597             # what "hidden" libraries, object files and flags are used when
 598             # linking a shared library.
 599             output_verbose_link_cmds="$CC -G $CFLAGS -v conftest.$objext 2>&1 | egrep \"\-L\""
 600           fi
 601
 602           hardcode_libdir_flag_spec='${wl}-R $wl$libdir'
 603         fi
 604         ;;
 605     esac
 606     ;;
 607   tandem*)
 608     case $cc_basename in
 609       NCC)
 610         # NonStop-UX NCC 3.20
 611         # FIXME: insert proper C++ library support
 612         ld_shlibs=no
 613         ;;
 614       *)
 615         # FIXME: insert proper C++ library support
 616         ld_shlibs=no
 617         ;;
 618     esac
 619     ;;
 620   unixware*)
 621     # FIXME: insert proper C++ library support
 622     ld_shlibs=no
 623     ;;
 624   vxworks*)
 625     # FIXME: insert proper C++ library support
 626     ld_shlibs=no
 627     ;;
 628   *)
 629     # FIXME: insert proper C++ library support
 630     ld_shlibs=no
 631     ;;
 632 esac
 633
 634
 635 ## Compiler Characteristics: PIC flags, static flags, etc
 636
 637 # We don't use cached values here since only the C compiler
 638 # characteristics should be cached.
 639 ac_cv_prog_cc_pic=
 640 ac_cv_prog_cc_shlib=
 641 ac_cv_prog_cc_wl=
 642 ac_cv_prog_cc_static=
 643 ac_cv_prog_cc_no_builtin=
 644 ac_cv_prog_cc_can_build_shared=$can_build_shared
 645
 646 ac_cv_prog_cc_pic_works=
 647 ac_cv_prog_cc_static_works=
 648
 649 if test "$with_gcc" = yes; then
 650   ac_cv_prog_cc_wl='-Wl,'
 651   ac_cv_prog_cc_static='-static'
 652
 653   case $host_os in
 654   beos* | irix5* | irix6* | osf3* | osf4* | osf5*)
 655     # PIC is the default for these OSes.
 656     ;;
 657   aix*)
 658     # All AIX code is PIC.
 659     if test "$host_cpu" = ia64; then
 660       # AIX 5 now supports IA64 processor
 661       lt_cv_prog_cc_static='-Bstatic'
 662     else
 663       lt_cv_prog_cc_static='-bnso -bI:/lib/syscalls.exp'
 664     fi
 665     ;;
 666   *djgpp*)
 667     # DJGPP does not support shared libraries at all
 668     ac_cv_prog_cc_pic=
 669     ;;
 670   cygwin* | mingw* | os2*)
 671     # This hack is so that the source file can tell whether it is being
 672     # built for inclusion in a dll (and should export symbols for example).
 673     ac_cv_prog_cc_pic='-DDLL_EXPORT'
 674     ;;
 675   amigaos*)
 676     # FIXME: we need at least 68020 code to build shared libraries, but
 677     # adding the `-m68020' flag to GCC prevents building anything better,
 678     # like `-m68040'.
 679     ac_cv_prog_cc_pic='-m68020 -resident32 -malways-restore-a4'
 680     ;;
 681   sysv4*MP*)
 682     if test -d /usr/nec; then
 683       ac_cv_prog_cc_pic=-Kconform_pic
 684     fi
 685     ;;
 686   *)
 687     ac_cv_prog_cc_pic='-fPIC'
 688     ;;
 689   esac
 690 else
 691   case $host_os in
 692     aix4* | aix5*)
 693       # All AIX code is PIC.
 694       if test "$host_cpu" = ia64; then
 695         # AIX 5 now supports IA64 processor
 696         lt_cv_prog_cc_static='-Bstatic'
 697       else
 698         lt_cv_prog_cc_static='-bnso -bI:/lib/syscalls.exp'
 699       fi
 700       ;;
 701     chorus*)
 702       case $cc_basename in
 703       cxch68)
 704         # Green Hills C++ Compiler
 705         # 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"
 706         ;;
 707       esac
 708       ;;
 709     dgux*)
 710       case $cc_basename in
 711         ec++)
 712           ac_cv_prog_cc_pic='-KPIC'
 713           ;;
 714         ghcx)
 715           # Green Hills C++ Compiler
 716           ac_cv_prog_cc_pic='-pic'
 717           ;;
 718         *)
 719           ;;
 720       esac
 721       ;;
 722     freebsd*)
 723       # FreeBSD uses GNU C++
 724       ;;
 725     hpux9* | hpux10* | hpux11*)
 726       case $cc_basename in
 727         CC)
 728           ac_cv_prog_cc_wl='-Wl,'
 729           ac_cv_prog_cc_static="${ac_cv_prog_cc_wl}-a ${ac_cv_prog_cc_wl}archive"
 730           ac_cv_prog_cc_pic='+Z'
 731           ;;
 732         aCC)
 733           ac_cv_prog_cc_wl='-Wl,'
 734           ac_cv_prog_cc_static="${ac_cv_prog_cc_wl}-a ${ac_cv_prog_cc_wl}archive"
 735           ac_cv_prog_cc_pic='+Z'
 736           ;;
 737         *)
 738           ;;
 739       esac
 740       ;;
 741     irix5* | irix6*)
 742       case $cc_basename in
 743         CC)
 744           ac_cv_prog_cc_wl='-Wl,'
 745           ac_cv_prog_cc_static='-non_shared'
 746           ac_cv_prog_cc_pic='-KPIC'
 747           ;;
 748         *)
 749           ;;
 750       esac
 751       ;;
 752     linux*)
 753       case $cc_basename in
 754         KCC)
 755           # KAI C++ Compiler
 756           ac_cv_prog_cc_wl='--backend -Wl,'
 757           ac_cv_prog_cc_pic='-fPIC'
 758           ;;
 759         cxx)
 760           # Compaq C++
 761           # Make sure the PIC flag is empty.  It appears that all Alpha
 762           # Linux and Compaq Tru64 Unix objects are PIC.
 763           ac_cv_prog_cc_pic=
 764           ac_cv_prog_cc_static='-non_shared'
 765           ;;
 766         *)
 767           ;;
 768       esac
 769       ;;
 770     lynxos*)
 771       ;;
 772     m88k*)
 773       ;;
 774     mvs*)
 775       case $cc_basename in
 776         cxx)
 777           ac_cv_prog_cc_pic='-W c,exportall'
 778           ;;
 779         *)
 780           ;;
 781       esac
 782       ;;
 783     netbsd*)
 784       ;;
 785     osf3* | osf4* | osf5*)
 786       case $cc_basename in
 787         KCC)
 788           ac_cv_prog_cc_wl='--backend -Wl,'
 789           ;;
 790         RCC)
 791           # Rational C++ 2.4.1
 792           ac_cv_prog_cc_pic='-pic'
 793           ;;
 794         cxx)
 795           # Digital/Compaq C++
 796           ac_cv_prog_cc_wl='-Wl,'
 797           # Make sure the PIC flag is empty.  It appears that all Alpha
 798           # Linux and Compaq Tru64 Unix objects are PIC.
 799           ac_cv_prog_cc_pic=
 800           ac_cv_prog_cc_static='-non_shared'
 801           ;;
 802         *)
 803           ;;
 804       esac
 805       ;;
 806     psos*)
 807       ;;
 808     sco*)
 809       case $cc_basename in
 810         CC)
 811           ac_cv_prog_cc_pic='-fPIC'
 812           ;;
 813         *)
 814           ;;
 815       esac
 816       ;;
 817     solaris*)
 818       case $cc_basename in
 819         CC)
 820           # Sun C++ 4.2, 5.x and Centerline C++
 821           ac_cv_prog_cc_pic='-KPIC'
 822           ac_cv_prog_cc_static='-Bstatic'
 823           ac_cv_prog_cc_wl='-Qoption ld '
 824           ;;
 825         gcx)
 826           # Green Hills C++ Compiler
 827           ac_cv_prog_cc_pic='-PIC'
 828           ;;
 829         *)
 830           ;;
 831       esac
 832       ;;
 833     sunos4*)
 834       case $cc_basename in
 835         CC)
 836           # Sun C++ 4.x
 837           ac_cv_prog_cc_pic='-pic'
 838           ac_cv_prog_cc_static='-Bstatic'
 839           ;;
 840         lcc)
 841           # Lucid
 842           ac_cv_prog_cc_pic='-pic'
 843           ;;
 844         *)
 845           ;;
 846       esac
 847       ;;
 848     tandem*)
 849       case $cc_basename in
 850         NCC)
 851           # NonStop-UX NCC 3.20
 852           ac_cv_prog_cc_pic='-KPIC'
 853           ;;
 854         *)
 855           ;;
 856       esac
 857       ;;
 858     unixware*)
 859       ;;
 860     vxworks*)
 861       ;;
 862     *)
 863       ac_cv_prog_cc_can_build_shared=no
 864       ;;
 865   esac
 866 fi
 867
 868 case "$host_os" in
 869     # Platforms which do not suport PIC and -DPIC is meaningless
 870     # on them:
 871     *djgpp*)
 872       ac_cv_prog_cc_pic=
 873       ;;
 874     *)
 875       ac_cv_prog_cc_pic="$ac_cv_prog_cc_pic -DPIC"
 876       ;;
 877 esac
 878
 879
 880 # Figure out "hidden" C++ library dependencies from verbose
 881 # compiler output whening linking a shared library.
 882 cat > conftest.$ac_ext <<EOF
 883 class Foo
 884 {
 885 public:
 886   Foo (void) { a = 0; }
 887 private:
 888   int a;
 889 };
 890 EOF
 891
 892
 893 if (eval $ac_compile) 2>&5; then
 894   # Parse the compiler output and extract the necessary
 895   # objects, libraries and library flags.
 896
 897   # Sentinel used to keep track of whether or not we are before
 898   # the conftest object file.
 899   pre_test_object_deps_done=no
 900
 901   for p in `eval $output_verbose_link_cmds`; do
 902
 903     case $p in
 904
 905     -L* | -R* | -l*)
 906        # Some compilers place space between "-{L,R}" and the path.
 907        # Remove the space.
 908        if test $p = "-L" \
 909           || test $p = "-R"; then
 910          prev=$p
 911          continue
 912        else
 913          prev=
 914        fi
 915
 916        if test "$pre_test_object_deps_done" = no; then
 917          case $p in
 918          -L* | -R*)
 919            # Internal compiler library paths should come after those
 920            # provided the user.  The postdeps already come after the
 921            # user supplied libs so there is no need to process them.
 922            if test -z "$compiler_lib_search_path"; then
 923              compiler_lib_search_path="${prev}${p}"
 924            else
 925              compiler_lib_search_path="${compiler_lib_search_path} ${prev}${p}"
 926            fi
 927            ;;
 928          # The "-l" case would never come before the object being
 929          # linked, so don't bother handling this case.
 930          esac
 931        else
 932          if test -z "$postdeps"; then
 933            postdeps="${prev}${p}"
 934          else
 935            postdeps="${postdeps} ${prev}${p}"
 936          fi
 937        fi
 938        ;;
 939
 940     *.$objext)
 941        # This assumes that the test object file only shows up
 942        # once in the compiler output.
 943        if test "$p" = "conftest.$objext"; then
 944          pre_test_object_deps_done=yes
 945          continue
 946        fi
 947
 948        if test "$pre_test_object_deps_done" = no; then
 949          if test -z "$predep_objects"; then
 950            predep_objects="$p"
 951          else
 952            predep_objects="$predep_objects $p"
 953          fi
 954        else
 955          if test -z "$postdep_objects"; then
 956            postdep_objects="$p"
 957          else
 958            postdep_objects="$postdep_objects $p"
 959          fi
 960        fi
 961        ;;
 962
 963     *) ;; # Ignore the rest.
 964
 965     esac
 966   done
 967
 968   # Clean up.
 969   rm -f a.out
 970 else
 971   echo "ltcf-cxx.sh: error: problem compiling test program"
 972 fi
 973
 974 $rm -f confest.$objext
 975
 976 case " $postdeps " in
 977 *" -lc "*) need_lc=no ;;
 978 *) need_lc=yes ;;
 979 esac