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, 2003 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 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 $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
  66   with_gcc=yes
  67
  68   # Set up default GNU C++ configuration
  69
  70   # Check if GNU C++ uses GNU ld as the underlying linker, since the
  71   # archiving commands below assume that GNU ld is being used.  The
  72   # assumption here is that the linker is going to be the same as that
  73   # used by the C compiler.  For the purposes of GCC, this is ok, but
  74   # if someone uses g++ along with a non-GNU C compiler that doesn't
  75   # use GNU ld, we may lose.  This is ok for the toolchain tree, since
  76   # the only users of ltcf-cxx.sh are libstdc++-v3 and libjava,
  77   # anyway, and those use both gcc and g++, so the settings are bound
  78   # to be the same.
  79
  80   if test "$with_gnu_ld" = yes; then
  81     archive_cmds='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
  82     archive_expsym_cmds='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
  83
  84     hardcode_libdir_flag_spec='${wl}--rpath ${wl}$libdir'
  85     export_dynamic_flag_spec='${wl}--export-dynamic'
  86
  87     # If archive_cmds runs LD, not CC, wlarc should be empty
  88     # XXX I think wlarc can be eliminated in ltcf-cxx, but I need to
  89     #     investigate it a little bit more. (MM)
  90     wlarc='${wl}'
  91
  92     # ancient GNU ld didn't support --whole-archive et. al.
  93     if eval "`$CC -print-prog-name=ld` --help 2>&1" | \
  94         egrep 'no-whole-archive' > /dev/null; then
  95       whole_archive_flag_spec="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
  96     else
  97       whole_archive_flag_spec=
  98     fi
  99   else
 100     wlarc=
 101
 102     # A generic and very simple default shared library creation
 103     # command for GNU C++ for the case where it uses the native
 104     # linker, instead of GNU ld.  If possible, this setting should
 105     # overridden to take advantage of the native linker features on
 106     # the platform it is being used on.
 107     archive_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib'
 108   fi
 109
 110   # Commands to make compiler produce verbose output that lists
 111   # what "hidden" libraries, object files and flags are used when
 112   # linking a shared library.
 113   output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | egrep "\-L"'
 114
 115 else
 116   with_gcc=no
 117   wlarc=
 118 fi
 119
 120 # PORTME: fill in a description of your system's C++ link characteristics
 121 case $host_os in
 122   aix3*)
 123     # FIXME: insert proper C++ library support
 124     ld_shlibs=no
 125     ;;
 126   aix4* | aix5*)
 127     archive_cmds=''
 128     hardcode_direct=yes
 129     hardcode_libdir_separator=':'
 130     link_all_deplibs=yes
 131     file_list_spec='${wl}-f,'
 132     # When large executables or shared objects are built, AIX ld can
 133     # have problems creating the table of contents.  If linking a library
 134     # or program results in "error TOC overflow" add -mminimal-toc to
 135     # CXXFLAGS/CFLAGS for g++/gcc.  In the cases where that is not
 136     # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
 137     if test "$with_gcc" = yes; then
 138       case $host_os in aix4.[012]|aix4.[012].*)
 139       # We only want to do this on AIX 4.2 and lower, the check
 140       # below for broken collect2 doesn't work under 4.3+
 141         collect2name=`${CC} -print-prog-name=collect2`
 142         if test -f "$collect2name" && \
 143            strings "$collect2name" | grep resolve_lib_name >/dev/null
 144         then
 145           # We have reworked collect2
 146           hardcode_direct=yes
 147         else
 148           # We have old collect2
 149           hardcode_direct=unsupported
 150           # It fails to find uninstalled libraries when the uninstalled
 151           # path is not listed in the libpath.  Setting hardcode_minus_L
 152           # to unsupported forces relinking
 153           hardcode_minus_L=yes
 154           hardcode_libdir_flag_spec='-L$libdir'
 155           hardcode_libdir_separator=
 156         fi
 157       esac
 158       shared_flag='-shared'
 159     else
 160       # not using gcc
 161       if test "$host_cpu" = ia64; then
 162         shared_flag='${wl}-G'
 163       else
 164         shared_flag='${wl}-bM:SRE'
 165       fi
 166     fi
 167
 168     if test "$host_cpu" = ia64; then
 169       # On IA64, the linker does run time linking by default, so we don't
 170       # have to do anything special.
 171       aix_use_runtimelinking=no
 172       if test $with_gnu_ld = no; then
 173         exp_sym_flag='-Bexport'
 174         no_entry_flag=""
 175       fi
 176     else
 177       # Test if we are trying to use run time linking, or normal AIX style linking.
 178       # If -brtl is somewhere in LDFLAGS, we need to do run time linking.
 179       aix_use_runtimelinking=no
 180       for ld_flag in $LDFLAGS; do
 181         if (test $ld_flag = "-brtl" || test $ld_flag = "-Wl,-brtl" ); then
 182           aix_use_runtimelinking=yes
 183           break
 184         fi
 185       done
 186       exp_sym_flag='-bexport'
 187       no_entry_flag='-bnoentry'
 188     fi
 189     # It seems that -bexpall does not export symbols beginning with
 190     # underscore (_), so it is better to generate a list of symbols to export.
 191     always_export_symbols=yes
 192     if test "$aix_use_runtimelinking" = yes; then
 193       hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:/usr/lib:/lib'
 194       allow_undefined_flag=' -Wl,-G'
 195       archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${allow_undefined_flag} '"\${wl}$no_entry_flag \${wl}-brtl \${wl}$exp_sym_flag:\$export_symbols"
 196      else
 197       if test "$host_cpu" = ia64; then
 198         if test $with_gnu_ld = no; then
 199           hardcode_libdir_flag_spec='${wl}-R $libdir:/usr/lib:/lib'
 200           allow_undefined_flag="-z nodefs"
 201           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"
 202         fi
 203       else
 204         hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:/usr/lib:/lib'
 205         # Warning - without using the other run time loading flags, -berok will
 206         #           link without error, but may produce a broken library.
 207         no_undefined_flag=' ${wl}-bnoerok'
 208         allow_undefined_flag=' ${wl}-berok'
 209         # -bexpall does not export symbols beginning with underscore (_)
 210         always_export_symbols=yes
 211         # Exported symbols can be pulled into shared objects from archives
 212         whole_archive_flag_spec=' '
 213         build_libtool_need_lc=yes
 214         # This is similar to how AIX traditionally builds it's shared libraries.
 215         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'
 216       fi
 217     fi
 218     ;;
 219   chorus*)
 220     case $cc_basename in
 221       *)
 222         # FIXME: insert proper C++ library support
 223         ld_shlibs=no
 224         ;;
 225     esac
 226     ;;
 227
 228   darwin* | rhapsody*)
 229     case "$host_os" in
 230         rhapsody* | darwin1.[[012]])
 231             allow_undefined_flag='-undefined suppress'
 232         ;;
 233         *) # Darwin 1.3 on
 234             if test -z ${MACOSX_DEPLOYMENT_TARGET} ; then
 235                 allow_undefined_flag='-flat_namespace -undefined suppress'
 236       else
 237         case ${MACOSX_DEPLOYMENT_TARGET} in
 238             10.[[012]])
 239                 allow_undefined_flag='-flat_namespace -undefined suppress'
 240             ;;
 241             10.*)
 242                 allow_undefined_flag='-undefined dynamic_lookup'
 243             ;;
 244         esac
 245     fi
 246     ;;
 247     esac
 248     # Disable shared library build on OS-X older than 10.3.
 249     case $host_os in
 250         # APPLE LOCAL darwin10
 251         darwin[3-6]*)
 252             can_build_shared=no
 253             ;;
 254         darwin7*)
 255             can_build_shared=yes
 256             ;;
 257     esac
 258     output_verbose_link_cmd='echo'
 259
 260     archive_cmds='$CXX -dynamiclib $allow_undefined_flag -o $lib $libobjs $deplibs $compiler_flags -install_name $rpath/$soname $verstring'
 261     module_cmds='$CC ${wl}-bind_at_load $allow_undefined_flag -o $lib -bundle $libobjs $deplibs$compiler_flags'
 262
 263     # Don't fix this by using the ld -exported_symbols_list flag,
 264     # it doesn't exist in older darwin ld's
 265     archive_expsym_cmds='sed -e "s,#.*,," -e "s,^[    ]*,," -e "s,^\(..*\),_&," < $export_symbols > $output_objdir/${libname}-symbols.expsym~$CC -r ${wl}-bind_at_load -keep_private_externs -nostdlib -o ${lib}-master.o $libobjs~$CC -dynamiclib $allow_undefined_flag -o $lib ${lib}-master.o $deplibs $compiler_flags -install_name $rpath/$soname $verstring~nmedit -s $output_objdir/${libname}-symbols.expsym ${lib}'
 266     module_expsym_cmds='sed -e "s,#.*,," -e "s,^[    ]*,," -e "s,^\(..*\),_&," < $export_symbols > $output_objdir/${libname}-symbols.expsym~$CC $allow_undefined_flag  -o $lib -bundle $libobjs $deplibs$compiler_flags~nmedit -s $output_objdir/${libname}-symbols.expsym ${lib}'
 267     hardcode_direct=no
 268     hardcode_automatic=yes
 269     hardcode_shlibpath_var=unsupported
 270     link_all_deplibs=yes
 271     ;;
 272
 273   dgux*)
 274     case $cc_basename in
 275       ec++)
 276         # FIXME: insert proper C++ library support
 277         ld_shlibs=no
 278         ;;
 279       ghcx)
 280         # Green Hills C++ Compiler
 281         # FIXME: insert proper C++ library support
 282         ld_shlibs=no
 283         ;;
 284       *)
 285         # FIXME: insert proper C++ library support
 286         ld_shlibs=no
 287         ;;
 288     esac
 289     ;;
 290   freebsd[12]*)
 291     # C++ shared libraries reported to be fairly broken before switch to ELF
 292     ld_shlibs=no
 293     ;;
 294   freebsd* | kfreebsd*-gnu)
 295     # FreeBSD 3 and later use GNU C++ and GNU ld with standard ELF
 296     # conventions
 297     ld_shlibs=yes
 298     ;;
 299   gnu*)
 300     ;;
 301   hpux*)
 302     if test $with_gnu_ld = no; then
 303       case "$host_cpu" in
 304         ia64*)
 305           hardcode_libdir_flag_spec='-L$libdir'
 306           hardcode_shlibpath_var=no ;;
 307         *)
 308           hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir' ;;
 309       esac
 310       hardcode_direct=yes
 311       hardcode_libdir_separator=:
 312       export_dynamic_flag_spec='${wl}-E'
 313     fi
 314     hardcode_minus_L=yes # Not in the search PATH, but as the default
 315                          # location of the library.
 316
 317     case $cc_basename in
 318       CC)
 319         # FIXME: insert proper C++ library support
 320         ld_shlibs=no
 321         ;;
 322       aCC)
 323         case $host_os in
 324         hpux9*) archive_cmds='$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 $lib' ;;
 325         *) archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' ;;
 326         esac
 327         # Commands to make compiler produce verbose output that lists
 328         # what "hidden" libraries, object files and flags are used when
 329         # linking a shared library.
 330         #
 331         # There doesn't appear to be a way to prevent this compiler from
 332         # explicitly linking system object files so we need to strip them
 333         # from the output so that they don't get included in the library
 334         # dependencies.
 335         output_verbose_link_cmd='templist=`($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'
 336         ;;
 337       *)
 338         if test $with_gcc = yes; then
 339           if test $with_gnu_ld = no; then
 340             case "$host_os" in
 341             hpux9*) archive_cmds='$rm $output_objdir/$soname~$CC -shared -nostdlib -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 $lib' ;;
 342             *)
 343               case "$host_cpu" in
 344                 ia64*)
 345                   archive_cmds='$LD -b +h $soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags' ;;
 346                 *)
 347                   archive_cmds='$CC -shared -nostdlib -fPIC ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' ;;
 348               esac
 349               ;;
 350             esac
 351           fi
 352         else
 353           # FIXME: insert proper C++ library support
 354           ld_shlibs=no
 355         fi
 356         ;;
 357     esac
 358     ;;
 359   irix5* | irix6*)
 360     case $cc_basename in
 361       CC)
 362         # SGI C++
 363         archive_cmds='$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 $lib'
 364
 365         # Archives containing C++ object files must be created using
 366         # "CC -ar", where "CC" is the IRIX C++ compiler.  This is
 367         # necessary to make sure instantiated templates are included
 368         # in the archive.
 369         old_archive_cmds='$CC -ar -WR,-u -o $oldlib $oldobjs'
 370         ;;
 371       *)
 372         if test "$with_gcc" = yes; then
 373           if test "$with_gnu_ld" = no; then
 374             archive_cmds='$CC -shared -nostdlib $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 $lib'
 375           else
 376             archive_cmds='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && echo -set_version $verstring` -o $lib'
 377           fi
 378         fi
 379         hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 380         hardcode_libdir_separator=:
 381         link_all_deplibs=yes
 382         ;;
 383     esac
 384     ;;
 385   linux*)
 386     case $cc_basename in
 387       KCC)
 388         # Kuck and Associates, Inc. (KAI) C++ Compiler
 389
 390         # KCC will only create a shared library if the output file
 391         # ends with ".so" (or ".sl" for HP-UX), so rename the library
 392         # to its proper name (with version) after linking.
 393         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'
 394         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 $lib'
 395
 396         # Commands to make compiler produce verbose output that lists
 397         # what "hidden" libraries, object files and flags are used when
 398         # linking a shared library.
 399         #
 400         # There doesn't appear to be a way to prevent this compiler from
 401         # explicitly linking system object files so we need to strip them
 402         # from the output so that they don't get included in the library
 403         # dependencies.
 404         output_verbose_link_cmd='templist=`$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 $list'
 405
 406         hardcode_libdir_flag_spec='${wl}--rpath,$libdir'
 407         export_dynamic_flag_spec='${wl}--export-dynamic'
 408
 409         # Archives containing C++ object files must be created using
 410         # "CC -Bstatic", where "CC" is the KAI C++ compiler.
 411         old_archive_cmds='$CC -Bstatic -o $oldlib $oldobjs'
 412         ;;
 413       cxx)
 414         # Compaq C++
 415         archive_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
 416         archive_expsym_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname  -o $lib ${wl}-retain-symbols-file $wl$export_symbols'
 417
 418         runpath_var=LD_RUN_PATH
 419         hardcode_libdir_flag_spec='-rpath $libdir'
 420         hardcode_libdir_separator=:
 421
 422         # Commands to make compiler produce verbose output that lists
 423         # what "hidden" libraries, object files and flags are used when
 424         # linking a shared library.
 425         #
 426         # There doesn't appear to be a way to prevent this compiler from
 427         # explicitly linking system object files so we need to strip them
 428         # from the output so that they don't get included in the library
 429         # dependencies.
 430         output_verbose_link_cmd='templist=`$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'
 431         ;;
 432     esac
 433     ;;
 434   lynxos*)
 435     # FIXME: insert proper C++ library support
 436     ld_shlibs=no
 437     ;;
 438   m88k*)
 439     # FIXME: insert proper C++ library support
 440     ld_shlibs=no
 441     ;;
 442   mvs*)
 443     case $cc_basename in
 444       cxx)
 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   netbsd* | knetbsd*-gnu)
 455     # NetBSD uses g++ - do we need to do anything?
 456     ;;
 457   osf3*)
 458     case $cc_basename in
 459       KCC)
 460         # Kuck and Associates, Inc. (KAI) C++ Compiler
 461
 462         # KCC will only create a shared library if the output file
 463         # ends with ".so" (or ".sl" for HP-UX), so rename the library
 464         # to its proper name (with version) after linking.
 465         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 $lib'
 466
 467         hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
 468         hardcode_libdir_separator=:
 469
 470         # Archives containing C++ object files must be created using
 471         # "CC -Bstatic", where "CC" is the KAI C++ compiler.
 472         old_archive_cmds='$CC -Bstatic -o $oldlib $oldobjs'
 473
 474         ;;
 475       RCC)
 476         # Rational C++ 2.4.1
 477         # FIXME: insert proper C++ library support
 478         ld_shlibs=no
 479         ;;
 480       cxx)
 481         allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
 482         archive_cmds='$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 $lib'
 483
 484         hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 485         hardcode_libdir_separator=:
 486
 487         # Commands to make compiler produce verbose output that lists
 488         # what "hidden" libraries, object files and flags are used when
 489         # linking a shared library.
 490         #
 491         # There doesn't appear to be a way to prevent this compiler from
 492         # explicitly linking system object files so we need to strip them
 493         # from the output so that they don't get included in the library
 494         # dependencies.
 495         output_verbose_link_cmd='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 $list'
 496         ;;
 497       *)
 498         if test "$with_gcc" = yes && test "$with_gnu_ld" = no; then
 499           allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
 500           archive_cmds='$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 $lib'
 501
 502           hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 503           hardcode_libdir_separator=:
 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_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | egrep "\-L"'
 509     else
 510           # FIXME: insert proper C++ library support
 511           ld_shlibs=no
 512     fi
 513         ;;
 514     esac
 515     ;;
 516   osf4* | osf5*)
 517     case $cc_basename in
 518       KCC)
 519         # Kuck and Associates, Inc. (KAI) C++ Compiler
 520
 521         # KCC will only create a shared library if the output file
 522         # ends with ".so" (or ".sl" for HP-UX), so rename the library
 523         # to its proper name (with version) after linking.
 524         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 $lib'
 525
 526         hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
 527         hardcode_libdir_separator=:
 528
 529         # Archives containing C++ object files must be created using
 530         # the KAI C++ compiler.
 531         old_archive_cmds='$CC -o $oldlib $oldobjs'
 532         ;;
 533       RCC)
 534         # Rational C++ 2.4.1
 535         # FIXME: insert proper C++ library support
 536         ld_shlibs=no
 537         ;;
 538       cxx)
 539         allow_undefined_flag=' -expect_unresolved \*'
 540         archive_cmds='$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'
 541         archive_expsym_cmds='for i in `cat $export_symbols`; do printf "-exported_symbol " >> $lib.exp; echo "\$i" >> $lib.exp; done~
 542           echo "-hidden">> $lib.exp~
 543           $CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname -Wl,-input -Wl,$lib.exp  `test -n "$verstring" && echo -set_version $verstring` -update_registry $objdir/so_locations -o $lib~
 544           $rm $lib.exp'
 545
 546         hardcode_libdir_flag_spec='-rpath $libdir'
 547         hardcode_libdir_separator=:
 548
 549         # Commands to make compiler produce verbose output that lists
 550         # what "hidden" libraries, object files and flags are used when
 551         # linking a shared library.
 552         #
 553         # There doesn't appear to be a way to prevent this compiler from
 554         # explicitly linking system object files so we need to strip them
 555         # from the output so that they don't get included in the library
 556         # dependencies.
 557         output_verbose_link_cmd='templist=`$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 $list'
 558         ;;
 559       *)
 560         if test "$with_gcc" = yes && test "$with_gnu_ld" = no; then
 561           allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
 562           archive_cmds='$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 $lib'
 563
 564           hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 565           hardcode_libdir_separator=:
 566
 567           # Commands to make compiler produce verbose output that lists
 568           # what "hidden" libraries, object files and flags are used when
 569           # linking a shared library.
 570           output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | egrep "\-L"'
 571     else
 572           # FIXME: insert proper C++ library support
 573           ld_shlibs=no
 574     fi
 575         ;;
 576     esac
 577     ;;
 578   psos*)
 579     # FIXME: insert proper C++ library support
 580     ld_shlibs=no
 581     ;;
 582   sco*)
 583     case $cc_basename in
 584       CC)
 585         # FIXME: insert proper C++ library support
 586         ld_shlibs=no
 587         ;;
 588       *)
 589         # FIXME: insert proper C++ library support
 590         ld_shlibs=no
 591         ;;
 592     esac
 593     ;;
 594   sunos4*)
 595     case $cc_basename in
 596       CC)
 597         # Sun C++ 4.x
 598         # FIXME: insert proper C++ library support
 599         ld_shlibs=no
 600         ;;
 601       lcc)
 602         # Lucid
 603         # FIXME: insert proper C++ library support
 604         ld_shlibs=no
 605         ;;
 606       *)
 607         # FIXME: insert proper C++ library support
 608         ld_shlibs=no
 609         ;;
 610     esac
 611     ;;
 612   solaris*)
 613     case $cc_basename in
 614       CC)
 615         # Sun C++ 4.2, 5.x and Centerline C++
 616         no_undefined_flag=' -zdefs'
 617         archive_cmds='$CC -G${allow_undefined_flag} -nolib -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
 618         archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
 619         $CC -G${allow_undefined_flag} -nolib ${wl}-M ${wl}$lib.exp -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$rm $lib.exp'
 620
 621         hardcode_libdir_flag_spec='-R$libdir'
 622         hardcode_shlibpath_var=no
 623         case $host_os in
 624           solaris2.[0-5] | solaris2.[0-5].*) ;;
 625           *)
 626             # The C++ compiler is used as linker so we must use $wl
 627             # flag to pass the commands to the underlying system
 628             # linker.
 629             # Supported since Solaris 2.6 (maybe 2.5.1?)
 630             whole_archive_flag_spec='${wl}-z ${wl}allextract$convenience ${wl}-z ${wl}defaultextract'
 631             ;;
 632         esac
 633         link_all_deplibs=yes
 634
 635         # Commands to make compiler produce verbose output that lists
 636         # what "hidden" libraries, object files and flags are used when
 637         # linking a shared library.
 638         #
 639         # There doesn't appear to be a way to prevent this compiler from
 640         # explicitly linking system object files so we need to strip them
 641         # from the output so that they don't get included in the library
 642         # dependencies.
 643         output_verbose_link_cmd='templist=`$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 $list'
 644
 645         # Archives containing C++ object files must be created using
 646         # "CC -xar", where "CC" is the Sun C++ compiler.  This is
 647         # necessary to make sure instantiated templates are included
 648         # in the archive.
 649         old_archive_cmds='$CC -xar -o $oldlib $oldobjs'
 650         ;;
 651       gcx)
 652         # Green Hills C++ Compiler
 653         archive_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'
 654
 655         # The C++ compiler must be used to create the archive.
 656         old_archive_cmds='$CC $LDFLAGS -archive -o $oldlib $oldobjs'
 657         ;;
 658       *)
 659         # GNU C++ compiler with Solaris linker
 660         if test "$with_gcc" = yes && test "$with_gnu_ld" = no; then
 661           no_undefined_flag=' ${wl}-z ${wl}defs'
 662           if $CC --version | egrep -v '^2\.7' > /dev/null; then
 663             archive_cmds='$CC -shared -nostdlib $LDFLAGS $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'
 664             archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
 665                 $CC -shared -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$rm $lib.exp'
 666
 667             # Commands to make compiler produce verbose output that lists
 668             # what "hidden" libraries, object files and flags are used when
 669             # linking a shared library.
 670             output_verbose_link_cmd="$CC -shared $CFLAGS -v conftest.$objext 2>&1 | egrep \"\-L\""
 671           else
 672             # g++ 2.7 appears to require `-G' NOT `-shared' on this
 673             # platform.
 674             archive_cmds='$CC -G -nostdlib $LDFLAGS $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'
 675             archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
 676                 $CC -G -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$rm $lib.exp'
 677
 678             # Commands to make compiler produce verbose output that lists
 679             # what "hidden" libraries, object files and flags are used when
 680             # linking a shared library.
 681             output_verbose_link_cmd="$CC -G $CFLAGS -v conftest.$objext 2>&1 | egrep \"\-L\""
 682           fi
 683
 684           hardcode_libdir_flag_spec='${wl}-R $wl$libdir'
 685         fi
 686         ;;
 687     esac
 688     ;;
 689   tandem*)
 690     case $cc_basename in
 691       NCC)
 692         # NonStop-UX NCC 3.20
 693         # FIXME: insert proper C++ library support
 694         ld_shlibs=no
 695         ;;
 696       *)
 697         # FIXME: insert proper C++ library support
 698         ld_shlibs=no
 699         ;;
 700     esac
 701     ;;
 702   tpf*)
 703     ld_shlibs=yes
 704     ;;
 705   unixware*)
 706     # FIXME: insert proper C++ library support
 707     ld_shlibs=no
 708     ;;
 709   vxworks*)
 710     # FIXME: insert proper C++ library support
 711     ld_shlibs=no
 712     ;;
 713   *)
 714     # FIXME: insert proper C++ library support
 715     ld_shlibs=no
 716     ;;
 717 esac
 718
 719
 720 ## Compiler Characteristics: PIC flags, static flags, etc
 721
 722 # We don't use cached values here since only the C compiler
 723 # characteristics should be cached.
 724 ac_cv_prog_cc_pic=
 725 ac_cv_prog_cc_shlib=
 726 ac_cv_prog_cc_wl=
 727 ac_cv_prog_cc_static=
 728 ac_cv_prog_cc_no_builtin=
 729 ac_cv_prog_cc_can_build_shared=$can_build_shared
 730
 731 ac_cv_prog_cc_pic_works=
 732 ac_cv_prog_cc_static_works=
 733
 734 if test "$with_gcc" = yes; then
 735   ac_cv_prog_cc_wl='-Wl,'
 736   ac_cv_prog_cc_static='-static'
 737
 738   case $host_os in
 739   aix*)
 740     # All AIX code is PIC.
 741     if test "$host_cpu" = ia64; then
 742       # AIX 5 now supports IA64 processor
 743       lt_cv_prog_cc_static='-Bstatic'
 744     else
 745       lt_cv_prog_cc_static='-bnso -bI:/lib/syscalls.exp'
 746     fi
 747     ;;
 748   amigaos*)
 749     # FIXME: we need at least 68020 code to build shared libraries, but
 750     # adding the `-m68020' flag to GCC prevents building anything better,
 751     # like `-m68040'.
 752     ac_cv_prog_cc_pic='-m68020 -resident32 -malways-restore-a4'
 753     ;;
 754   beos* | irix5* | irix6* | osf3* | osf4* | osf5*)
 755     # PIC is the default for these OSes.
 756     ;;
 757   cygwin* | mingw* | os2*)
 758     # This hack is so that the source file can tell whether it is being
 759     # built for inclusion in a dll (and should export symbols for example).
 760     ac_cv_prog_cc_pic='-DDLL_EXPORT'
 761     ;;
 762   darwin* | rhapsody*)
 763     # PIC is the default on this platform
 764     # Common symbols not allowed in MH_DYLIB files
 765     ac_cv_prog_cc_pic='-fno-common'
 766     ;;
 767   *djgpp*)
 768     # DJGPP does not support shared libraries at all
 769     ac_cv_prog_cc_pic=
 770     ;;
 771   sysv4*MP*)
 772     if test -d /usr/nec; then
 773       ac_cv_prog_cc_pic=-Kconform_pic
 774     fi
 775     ;;
 776   *)
 777     ac_cv_prog_cc_pic='-fPIC'
 778     ;;
 779   esac
 780 else
 781   case $host_os in
 782     aix4* | aix5*)
 783       # All AIX code is PIC.
 784       if test "$host_cpu" = ia64; then
 785         # AIX 5 now supports IA64 processor
 786         lt_cv_prog_cc_static='-Bstatic'
 787       else
 788         lt_cv_prog_cc_static='-bnso -bI:/lib/syscalls.exp'
 789       fi
 790       ;;
 791     chorus*)
 792       case $cc_basename in
 793       cxch68)
 794         # Green Hills C++ Compiler
 795         # 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"
 796         ;;
 797       esac
 798       ;;
 799     dgux*)
 800       case $cc_basename in
 801         ec++)
 802           ac_cv_prog_cc_pic='-KPIC'
 803           ;;
 804         ghcx)
 805           # Green Hills C++ Compiler
 806           ac_cv_prog_cc_pic='-pic'
 807           ;;
 808         *)
 809           ;;
 810       esac
 811       ;;
 812     freebsd* | kfreebsd*-gnu)
 813       # FreeBSD uses GNU C++
 814       ;;
 815     gnu*)
 816       ;;
 817     hpux9* | hpux10* | hpux11*)
 818       case $cc_basename in
 819         CC)
 820           ac_cv_prog_cc_wl='-Wl,'
 821           ac_cv_prog_cc_static="${ac_cv_prog_cc_wl}-a ${ac_cv_prog_cc_wl}archive"
 822           ac_cv_prog_cc_pic='+Z'
 823           ;;
 824         aCC)
 825           ac_cv_prog_cc_wl='-Wl,'
 826           ac_cv_prog_cc_static="${ac_cv_prog_cc_wl}-a ${ac_cv_prog_cc_wl}archive"
 827           ac_cv_prog_cc_pic='+Z'
 828           ;;
 829         *)
 830           ;;
 831       esac
 832       ;;
 833     irix5* | irix6*)
 834       case $cc_basename in
 835         CC)
 836           ac_cv_prog_cc_wl='-Wl,'
 837           ac_cv_prog_cc_static='-non_shared'
 838           ac_cv_prog_cc_pic='-KPIC'
 839           ;;
 840         *)
 841           ;;
 842       esac
 843       ;;
 844     linux*)
 845       case $cc_basename in
 846         KCC)
 847           # KAI C++ Compiler
 848           ac_cv_prog_cc_wl='--backend -Wl,'
 849           ac_cv_prog_cc_pic='-fPIC'
 850           ;;
 851         cxx)
 852           # Compaq C++
 853           # Make sure the PIC flag is empty.  It appears that all Alpha
 854           # Linux and Compaq Tru64 Unix objects are PIC.
 855           ac_cv_prog_cc_pic=
 856           ac_cv_prog_cc_static='-non_shared'
 857           ;;
 858         *)
 859           ;;
 860       esac
 861       ;;
 862     lynxos*)
 863       ;;
 864     m88k*)
 865       ;;
 866     mvs*)
 867       case $cc_basename in
 868         cxx)
 869           ac_cv_prog_cc_pic='-W c,exportall'
 870           ;;
 871         *)
 872           ;;
 873       esac
 874       ;;
 875     netbsd*)
 876       ;;
 877     osf3* | osf4* | osf5*)
 878       case $cc_basename in
 879         KCC)
 880           ac_cv_prog_cc_wl='--backend -Wl,'
 881           ;;
 882         RCC)
 883           # Rational C++ 2.4.1
 884           ac_cv_prog_cc_pic='-pic'
 885           ;;
 886         cxx)
 887           # Digital/Compaq C++
 888           ac_cv_prog_cc_wl='-Wl,'
 889           # Make sure the PIC flag is empty.  It appears that all Alpha
 890           # Linux and Compaq Tru64 Unix objects are PIC.
 891           ac_cv_prog_cc_pic=
 892           ac_cv_prog_cc_static='-non_shared'
 893           ;;
 894         *)
 895           ;;
 896       esac
 897       ;;
 898     psos*)
 899       ;;
 900     sco*)
 901       case $cc_basename in
 902         CC)
 903           ac_cv_prog_cc_pic='-fPIC'
 904           ;;
 905         *)
 906           ;;
 907       esac
 908       ;;
 909     solaris*)
 910       case $cc_basename in
 911         CC)
 912           # Sun C++ 4.2, 5.x and Centerline C++
 913           ac_cv_prog_cc_pic='-KPIC'
 914           ac_cv_prog_cc_static='-Bstatic'
 915           ac_cv_prog_cc_wl='-Qoption ld '
 916           ;;
 917         gcx)
 918           # Green Hills C++ Compiler
 919           ac_cv_prog_cc_pic='-PIC'
 920           ;;
 921         *)
 922           ;;
 923       esac
 924       ;;
 925     sunos4*)
 926       case $cc_basename in
 927         CC)
 928           # Sun C++ 4.x
 929           ac_cv_prog_cc_pic='-pic'
 930           ac_cv_prog_cc_static='-Bstatic'
 931           ;;
 932         lcc)
 933           # Lucid
 934           ac_cv_prog_cc_pic='-pic'
 935           ;;
 936         *)
 937           ;;
 938       esac
 939       ;;
 940     tandem*)
 941       case $cc_basename in
 942         NCC)
 943           # NonStop-UX NCC 3.20
 944           ac_cv_prog_cc_pic='-KPIC'
 945           ;;
 946         *)
 947           ;;
 948       esac
 949       ;;
 950     unixware*)
 951       ;;
 952     vxworks*)
 953       ;;
 954     *)
 955       ac_cv_prog_cc_can_build_shared=no
 956       ;;
 957   esac
 958 fi
 959
 960 case "$host_os" in
 961     # Platforms which do not suport PIC and -DPIC is meaningless
 962     # on them:
 963     *djgpp*)
 964       ac_cv_prog_cc_pic=
 965       ;;
 966     *)
 967       ac_cv_prog_cc_pic="$ac_cv_prog_cc_pic -DPIC"
 968       ;;
 969 esac
 970
 971
 972 # Figure out "hidden" C++ library dependencies from verbose
 973 # compiler output whening linking a shared library.
 974 cat > conftest.$ac_ext <<EOF
 975 class Foo
 976 {
 977 public:
 978   Foo (void) { a = 0; }
 979 private:
 980   int a;
 981 };
 982 EOF
 983
 984
 985 if (eval $ac_compile) 2>&5; then
 986   # Parse the compiler output and extract the necessary
 987   # objects, libraries and library flags.
 988
 989   # Sentinel used to keep track of whether or not we are before
 990   # the conftest object file.
 991   pre_test_object_deps_done=no
 992
 993   for p in `eval $output_verbose_link_cmd`; do
 994
 995     case $p in
 996
 997     -L* | -R* | -l*)
 998        # Some compilers place space between "-{L,R}" and the path.
 999        # Remove the space.
1000        if test $p = "-L" \
1001           || test $p = "-R"; then
1002          prev=$p
1003          continue
1004        else
1005          prev=
1006        fi
1007
1008        if test "$pre_test_object_deps_done" = no; then
1009          case $p in
1010          -L* | -R*)
1011            # Internal compiler library paths should come after those
1012            # provided the user.  The postdeps already come after the
1013            # user supplied libs so there is no need to process them.
1014            if test -z "$compiler_lib_search_path"; then
1015              compiler_lib_search_path="${prev}${p}"
1016            else
1017              compiler_lib_search_path="${compiler_lib_search_path} ${prev}${p}"
1018            fi
1019            ;;
1020          # The "-l" case would never come before the object being
1021          # linked, so don't bother handling this case.
1022          esac
1023        else
1024          if test -z "$postdeps"; then
1025            postdeps="${prev}${p}"
1026          else
1027            postdeps="${postdeps} ${prev}${p}"
1028          fi
1029        fi
1030        ;;
1031
1032     *.$objext)
1033        # This assumes that the test object file only shows up
1034        # once in the compiler output.
1035        if test "$p" = "conftest.$objext"; then
1036          pre_test_object_deps_done=yes
1037          continue
1038        fi
1039
1040        if test "$pre_test_object_deps_done" = no; then
1041          if test -z "$predep_objects"; then
1042            predep_objects="$p"
1043          else
1044            predep_objects="$predep_objects $p"
1045          fi
1046        else
1047          if test -z "$postdep_objects"; then
1048            postdep_objects="$p"
1049          else
1050            postdep_objects="$postdep_objects $p"
1051          fi
1052        fi
1053        ;;
1054
1055     *) ;; # Ignore the rest.
1056
1057     esac
1058   done
1059
1060   # Clean up.
1061   rm -f a.out
1062 else
1063   echo "ltcf-cxx.sh: error: problem compiling test program"
1064 fi
1065
1066 $rm -f confest.$objext
1067
1068 case " $postdeps " in
1069 *" -lc "*) need_lc=no ;;
1070 *) need_lc=yes ;;
1071 esac