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 $lib'
 104   fi
 105
 106   # Commands to make compiler produce verbose output that lists
 107   # what "hidden" libraries, object files and flags are used when
 108   # linking a shared library.
 109   output_verbose_link_cmd='$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       if test $with_gnu_ld = no; then
 169         exp_sym_flag='-Bexport'
 170         no_entry_flag=""
 171       fi
 172     else
 173       # Test if we are trying to use run time linking, or normal AIX style linking.
 174       # If -brtl is somewhere in LDFLAGS, we need to do run time linking.
 175       aix_use_runtimelinking=no
 176       for ld_flag in $LDFLAGS; do
 177         if (test $ld_flag = "-brtl" || test $ld_flag = "-Wl,-brtl" ); then
 178           aix_use_runtimelinking=yes
 179           break
 180         fi
 181       done
 182       exp_sym_flag='-bexport'
 183       no_entry_flag='-bnoentry'
 184     fi
 185     # It seems that -bexpall does not export symbols beginning with
 186     # underscore (_), so it is better to generate a list of symbols to export.
 187     always_export_symbols=yes
 188     if test "$aix_use_runtimelinking" = yes; then
 189       hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:/usr/lib:/lib'
 190       allow_undefined_flag=' -Wl,-G'
 191       archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${allow_undefined_flag} '"\${wl}$no_entry_flag \${wl}-brtl \${wl}$exp_sym_flag:\$export_symbols"
 192      else
 193       if test "$host_cpu" = ia64; then
 194         if test $with_gnu_ld = no; then
 195           hardcode_libdir_flag_spec='${wl}-R $libdir:/usr/lib:/lib'
 196           allow_undefined_flag="-z nodefs"
 197           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"
 198         fi
 199       else
 200         hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:/usr/lib:/lib'
 201         # Warning - without using the other run time loading flags, -berok will
 202         #           link without error, but may produce a broken library.
 203         no_undefined_flag=' ${wl}-bnoerok'
 204         allow_undefined_flag=' ${wl}-berok'
 205         # -bexpall does not export symbols beginning with underscore (_)
 206         always_export_symbols=yes
 207         # Exported symbols can be pulled into shared objects from archives
 208         whole_archive_flag_spec=' '
 209         build_libtool_need_lc=yes
 210         # This is similar to how AIX traditionally builds it's shared libraries.
 211         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'
 212       fi
 213     fi
 214     ;;
 215   chorus*)
 216     case $cc_basename in
 217       *)
 218         # FIXME: insert proper C++ library support
 219         ld_shlibs=no
 220         ;;
 221     esac
 222     ;;
 223   dgux*)
 224     case $cc_basename in
 225       ec++)
 226         # FIXME: insert proper C++ library support
 227         ld_shlibs=no
 228         ;;
 229       ghcx)
 230         # Green Hills C++ Compiler
 231         # FIXME: insert proper C++ library support
 232         ld_shlibs=no
 233         ;;
 234       *)
 235         # FIXME: insert proper C++ library support
 236         ld_shlibs=no
 237         ;;
 238     esac
 239     ;;
 240   freebsd[12]*)
 241     # C++ shared libraries reported to be fairly broken before switch to ELF
 242     ld_shlibs=no
 243     ;;
 244   freebsd*)
 245     # FreeBSD 3 and later use GNU C++ and GNU ld with standard ELF
 246     # conventions
 247     ld_shlibs=yes
 248     ;;
 249   gnu*)
 250     ;;
 251   hpux*)
 252     if test $with_gnu_ld = no; then
 253       case "$host_cpu" in
 254         ia64*)
 255           hardcode_libdir_flag_spec='-L$libdir'
 256           hardcode_shlibpath_var=no ;;
 257         *)
 258           hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir' ;;
 259       esac
 260       hardcode_direct=yes
 261       hardcode_libdir_separator=:
 262       export_dynamic_flag_spec='${wl}-E'
 263     fi
 264     hardcode_minus_L=yes # Not in the search PATH, but as the default
 265                          # location of the library.
 266
 267     case $cc_basename in
 268       CC)
 269         # FIXME: insert proper C++ library support
 270         ld_shlibs=no
 271         ;;
 272       aCC)
 273         case $host_os in
 274         hpux9*) archive_cmds='$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 $lib' ;;
 275         *) archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' ;;
 276         esac
 277         # Commands to make compiler produce verbose output that lists
 278         # what "hidden" libraries, object files and flags are used when
 279         # linking a shared library.
 280         #
 281         # There doesn't appear to be a way to prevent this compiler from
 282         # explicitly linking system object files so we need to strip them
 283         # from the output so that they don't get included in the library
 284         # dependencies.
 285         output_verbose_link_cmd='templist=`($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'
 286         ;;
 287       *)
 288         if test $with_gcc = yes; then
 289           if test $with_gnu_ld = no; then
 290             case "$host_os" in
 291             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 $lib' ;;
 292             *)
 293               case "$host_cpu" in
 294                 ia64*)
 295                   archive_cmds='$LD -b +h $soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags' ;;
 296                 *)
 297                   archive_cmds='$CC -shared -nostdlib -fPIC ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' ;;
 298               esac
 299               ;;
 300             esac
 301           fi
 302         else
 303           # FIXME: insert proper C++ library support
 304           ld_shlibs=no
 305         fi
 306         ;;
 307     esac
 308     ;;
 309   irix5* | irix6*)
 310     case $cc_basename in
 311       CC)
 312         # SGI C++
 313         archive_cmds='$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 $lib'
 314
 315         # Archives containing C++ object files must be created using
 316         # "CC -ar", where "CC" is the IRIX C++ compiler.  This is
 317         # necessary to make sure instantiated templates are included
 318         # in the archive.
 319         old_archive_cmds='$CC -ar -WR,-u -o $oldlib $oldobjs'
 320         ;;
 321       *)
 322         if test "$with_gcc" = yes; then
 323           if test "$with_gnu_ld" = no; then
 324             archive_cmds='$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 $lib'
 325           else
 326             archive_cmds='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags -soname $soname `test -n "$verstring" && echo -set_version $verstring` -o $lib'
 327           fi
 328         fi
 329         hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 330         hardcode_libdir_separator=:
 331         link_all_deplibs=yes
 332         ;;
 333     esac
 334     ;;
 335   linux*)
 336     case $cc_basename in
 337       KCC)
 338         # Kuck and Associates, Inc. (KAI) C++ Compiler
 339
 340         # KCC will only create a shared library if the output file
 341         # ends with ".so" (or ".sl" for HP-UX), so rename the library
 342         # to its proper name (with version) after linking.
 343         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'
 344         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 $lib'
 345
 346         # Commands to make compiler produce verbose output that lists
 347         # what "hidden" libraries, object files and flags are used when
 348         # linking a shared library.
 349         #
 350         # There doesn't appear to be a way to prevent this compiler from
 351         # explicitly linking system object files so we need to strip them
 352         # from the output so that they don't get included in the library
 353         # dependencies.
 354         output_verbose_link_cmd='templist=`$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 $list'
 355
 356         hardcode_libdir_flag_spec='${wl}--rpath,$libdir'
 357         export_dynamic_flag_spec='${wl}--export-dynamic'
 358
 359         # Archives containing C++ object files must be created using
 360         # "CC -Bstatic", where "CC" is the KAI C++ compiler.
 361         old_archive_cmds='$CC -Bstatic -o $oldlib $oldobjs'
 362         ;;
 363       cxx)
 364         # Compaq C++
 365         archive_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
 366         archive_expsym_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname  -o $lib ${wl}-retain-symbols-file $wl$export_symbols'
 367
 368         runpath_var=LD_RUN_PATH
 369         hardcode_libdir_flag_spec='-rpath $libdir'
 370         hardcode_libdir_separator=:
 371
 372         # Commands to make compiler produce verbose output that lists
 373         # what "hidden" libraries, object files and flags are used when
 374         # linking a shared library.
 375         #
 376         # There doesn't appear to be a way to prevent this compiler from
 377         # explicitly linking system object files so we need to strip them
 378         # from the output so that they don't get included in the library
 379         # dependencies.
 380         output_verbose_link_cmd='templist=`$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'
 381         ;;
 382     esac
 383     ;;
 384   lynxos*)
 385     # FIXME: insert proper C++ library support
 386     ld_shlibs=no
 387     ;;
 388   m88k*)
 389     # FIXME: insert proper C++ library support
 390     ld_shlibs=no
 391     ;;
 392   mvs*)
 393     case $cc_basename in
 394       cxx)
 395         # FIXME: insert proper C++ library support
 396         ld_shlibs=no
 397         ;;
 398       *)
 399         # FIXME: insert proper C++ library support
 400         ld_shlibs=no
 401         ;;
 402     esac
 403     ;;
 404   netbsd*)
 405     # NetBSD uses g++ - do we need to do anything?
 406     ;;
 407   osf3*)
 408     case $cc_basename in
 409       KCC)
 410         # Kuck and Associates, Inc. (KAI) C++ Compiler
 411
 412         # KCC will only create a shared library if the output file
 413         # ends with ".so" (or ".sl" for HP-UX), so rename the library
 414         # to its proper name (with version) after linking.
 415         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 $lib'
 416
 417         hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
 418         hardcode_libdir_separator=:
 419
 420         # Archives containing C++ object files must be created using
 421         # "CC -Bstatic", where "CC" is the KAI C++ compiler.
 422         old_archive_cmds='$CC -Bstatic -o $oldlib $oldobjs'
 423
 424         ;;
 425       RCC)
 426         # Rational C++ 2.4.1
 427         # FIXME: insert proper C++ library support
 428         ld_shlibs=no
 429         ;;
 430       cxx)
 431         allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
 432         archive_cmds='$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 $lib'
 433
 434         hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 435         hardcode_libdir_separator=:
 436
 437         # Commands to make compiler produce verbose output that lists
 438         # what "hidden" libraries, object files and flags are used when
 439         # linking a shared library.
 440         #
 441         # There doesn't appear to be a way to prevent this compiler from
 442         # explicitly linking system object files so we need to strip them
 443         # from the output so that they don't get included in the library
 444         # dependencies.
 445         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 $list'
 446         ;;
 447       *)
 448         if test "$with_gcc" = yes && test "$with_gnu_ld" = no; then
 449           allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
 450           archive_cmds='$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 $lib'
 451
 452           hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 453           hardcode_libdir_separator=:
 454
 455           # Commands to make compiler produce verbose output that lists
 456           # what "hidden" libraries, object files and flags are used when
 457           # linking a shared library.
 458           output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | egrep "\-L"'
 459     else
 460           # FIXME: insert proper C++ library support
 461           ld_shlibs=no
 462     fi
 463         ;;
 464     esac
 465     ;;
 466   osf4* | osf5*)
 467     case $cc_basename in
 468       KCC)
 469         # Kuck and Associates, Inc. (KAI) C++ Compiler
 470
 471         # KCC will only create a shared library if the output file
 472         # ends with ".so" (or ".sl" for HP-UX), so rename the library
 473         # to its proper name (with version) after linking.
 474         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 $lib'
 475
 476         hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
 477         hardcode_libdir_separator=:
 478
 479         # Archives containing C++ object files must be created using
 480         # the KAI C++ compiler.
 481         old_archive_cmds='$CC -o $oldlib $oldobjs'
 482         ;;
 483       RCC)
 484         # Rational C++ 2.4.1
 485         # FIXME: insert proper C++ library support
 486         ld_shlibs=no
 487         ;;
 488       cxx)
 489         allow_undefined_flag=' -expect_unresolved \*'
 490         archive_cmds='$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'
 491         archive_expsym_cmds='for i in `cat $export_symbols`; do printf "-exported_symbol " >> $lib.exp; echo "\$i" >> $lib.exp; done~
 492           echo "-hidden">> $lib.exp~
 493           $CC -shared$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~
 494           $rm $lib.exp'
 495
 496         hardcode_libdir_flag_spec='-rpath $libdir'
 497         hardcode_libdir_separator=:
 498
 499         # Commands to make compiler produce verbose output that lists
 500         # what "hidden" libraries, object files and flags are used when
 501         # linking a shared library.
 502         #
 503         # There doesn't appear to be a way to prevent this compiler from
 504         # explicitly linking system object files so we need to strip them
 505         # from the output so that they don't get included in the library
 506         # dependencies.
 507         output_verbose_link_cmd='templist=`$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 $list'
 508         ;;
 509       *)
 510         if test "$with_gcc" = yes && test "$with_gnu_ld" = no; then
 511           allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
 512           archive_cmds='$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 $lib'
 513
 514           hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 515           hardcode_libdir_separator=:
 516
 517           # Commands to make compiler produce verbose output that lists
 518           # what "hidden" libraries, object files and flags are used when
 519           # linking a shared library.
 520           output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | egrep "\-L"'
 521     else
 522           # FIXME: insert proper C++ library support
 523           ld_shlibs=no
 524     fi
 525         ;;
 526     esac
 527     ;;
 528   psos*)
 529     # FIXME: insert proper C++ library support
 530     ld_shlibs=no
 531     ;;
 532   sco*)
 533     case $cc_basename in
 534       CC)
 535         # FIXME: insert proper C++ library support
 536         ld_shlibs=no
 537         ;;
 538       *)
 539         # FIXME: insert proper C++ library support
 540         ld_shlibs=no
 541         ;;
 542     esac
 543     ;;
 544   sunos4*)
 545     case $cc_basename in
 546       CC)
 547         # Sun C++ 4.x
 548         # FIXME: insert proper C++ library support
 549         ld_shlibs=no
 550         ;;
 551       lcc)
 552         # Lucid
 553         # FIXME: insert proper C++ library support
 554         ld_shlibs=no
 555         ;;
 556       *)
 557         # FIXME: insert proper C++ library support
 558         ld_shlibs=no
 559         ;;
 560     esac
 561     ;;
 562   solaris*)
 563     case $cc_basename in
 564       CC)
 565         # Sun C++ 4.2, 5.x and Centerline C++
 566         no_undefined_flag=' -zdefs'
 567         archive_cmds='$CC -G${allow_undefined_flag} -nolib -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
 568         archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
 569         $CC -G${allow_undefined_flag} -nolib ${wl}-M ${wl}$lib.exp -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$rm $lib.exp'
 570
 571         hardcode_libdir_flag_spec='-R$libdir'
 572         hardcode_shlibpath_var=no
 573         case $host_os in
 574           solaris2.[0-5] | solaris2.[0-5].*) ;;
 575           *)
 576             # The C++ compiler is used as linker so we must use $wl
 577             # flag to pass the commands to the underlying system
 578             # linker.
 579             # Supported since Solaris 2.6 (maybe 2.5.1?)
 580             whole_archive_flag_spec='${wl}-z ${wl}allextract$convenience ${wl}-z ${wl}defaultextract'
 581             ;;
 582         esac
 583         link_all_deplibs=yes
 584
 585         # Commands to make compiler produce verbose output that lists
 586         # what "hidden" libraries, object files and flags are used when
 587         # linking a shared library.
 588         #
 589         # There doesn't appear to be a way to prevent this compiler from
 590         # explicitly linking system object files so we need to strip them
 591         # from the output so that they don't get included in the library
 592         # dependencies.
 593         output_verbose_link_cmd='templist=`$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 $list'
 594
 595         # Archives containing C++ object files must be created using
 596         # "CC -xar", where "CC" is the Sun C++ compiler.  This is
 597         # necessary to make sure instantiated templates are included
 598         # in the archive.
 599         old_archive_cmds='$CC -xar -o $oldlib $oldobjs'
 600         ;;
 601       gcx)
 602         # Green Hills C++ Compiler
 603         archive_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'
 604
 605         # The C++ compiler must be used to create the archive.
 606         old_archive_cmds='$CC $LDFLAGS -archive -o $oldlib $oldobjs'
 607         ;;
 608       *)
 609         # GNU C++ compiler with Solaris linker
 610         if test "$with_gcc" = yes && test "$with_gnu_ld" = no; then
 611           no_undefined_flag=' ${wl}-z ${wl}defs'
 612           if $CC --version | egrep -v '^2\.7' > /dev/null; then
 613             archive_cmds='$CC -shared -nostdlib $LDFLAGS $predep_objects $libobjs $deplibs $postdep_objects $linker_flags ${wl}-h $wl$soname -o $lib'
 614             archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
 615                 $CC -shared -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags~$rm $lib.exp'
 616
 617             # Commands to make compiler produce verbose output that lists
 618             # what "hidden" libraries, object files and flags are used when
 619             # linking a shared library.
 620             output_verbose_link_cmd="$CC -shared $CFLAGS -v conftest.$objext 2>&1 | egrep \"\-L\""
 621           else
 622             # g++ 2.7 appears to require `-G' NOT `-shared' on this
 623             # platform.
 624             archive_cmds='$CC -G -nostdlib $LDFLAGS $predep_objects $libobjs $deplibs $postdep_objects $linker_flags ${wl}-h $wl$soname -o $lib'
 625             archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
 626                 $CC -G -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags~$rm $lib.exp'
 627
 628             # Commands to make compiler produce verbose output that lists
 629             # what "hidden" libraries, object files and flags are used when
 630             # linking a shared library.
 631             output_verbose_link_cmd="$CC -G $CFLAGS -v conftest.$objext 2>&1 | egrep \"\-L\""
 632           fi
 633
 634           hardcode_libdir_flag_spec='${wl}-R $wl$libdir'
 635         fi
 636         ;;
 637     esac
 638     ;;
 639   tandem*)
 640     case $cc_basename in
 641       NCC)
 642         # NonStop-UX NCC 3.20
 643         # FIXME: insert proper C++ library support
 644         ld_shlibs=no
 645         ;;
 646       *)
 647         # FIXME: insert proper C++ library support
 648         ld_shlibs=no
 649         ;;
 650     esac
 651     ;;
 652   unixware*)
 653     # FIXME: insert proper C++ library support
 654     ld_shlibs=no
 655     ;;
 656   vxworks*)
 657     # FIXME: insert proper C++ library support
 658     ld_shlibs=no
 659     ;;
 660   *)
 661     # FIXME: insert proper C++ library support
 662     ld_shlibs=no
 663     ;;
 664 esac
 665
 666
 667 ## Compiler Characteristics: PIC flags, static flags, etc
 668
 669 # We don't use cached values here since only the C compiler
 670 # characteristics should be cached.
 671 ac_cv_prog_cc_pic=
 672 ac_cv_prog_cc_shlib=
 673 ac_cv_prog_cc_wl=
 674 ac_cv_prog_cc_static=
 675 ac_cv_prog_cc_no_builtin=
 676 ac_cv_prog_cc_can_build_shared=$can_build_shared
 677
 678 ac_cv_prog_cc_pic_works=
 679 ac_cv_prog_cc_static_works=
 680
 681 if test "$with_gcc" = yes; then
 682   ac_cv_prog_cc_wl='-Wl,'
 683   ac_cv_prog_cc_static='-static'
 684
 685   case $host_os in
 686   aix*)
 687     # All AIX code is PIC.
 688     if test "$host_cpu" = ia64; then
 689       # AIX 5 now supports IA64 processor
 690       lt_cv_prog_cc_static='-Bstatic'
 691     else
 692       lt_cv_prog_cc_static='-bnso -bI:/lib/syscalls.exp'
 693     fi
 694     ;;
 695   amigaos*)
 696     # FIXME: we need at least 68020 code to build shared libraries, but
 697     # adding the `-m68020' flag to GCC prevents building anything better,
 698     # like `-m68040'.
 699     ac_cv_prog_cc_pic='-m68020 -resident32 -malways-restore-a4'
 700     ;;
 701   beos* | irix5* | irix6* | osf3* | osf4* | osf5*)
 702     # PIC is the default for these OSes.
 703     ;;
 704   cygwin* | mingw* | os2*)
 705     # This hack is so that the source file can tell whether it is being
 706     # built for inclusion in a dll (and should export symbols for example).
 707     ac_cv_prog_cc_pic='-DDLL_EXPORT'
 708     ;;
 709   darwin* | rhapsody*)
 710     # PIC is the default on this platform
 711     # Common symbols not allowed in MH_DYLIB files
 712     lt_cv_prog_cc_pic='-fno-common'
 713     ;;
 714   *djgpp*)
 715     # DJGPP does not support shared libraries at all
 716     ac_cv_prog_cc_pic=
 717     ;;
 718   sysv4*MP*)
 719     if test -d /usr/nec; then
 720       ac_cv_prog_cc_pic=-Kconform_pic
 721     fi
 722     ;;
 723   *)
 724     ac_cv_prog_cc_pic='-fPIC'
 725     ;;
 726   esac
 727 else
 728   case $host_os in
 729     aix4* | aix5*)
 730       # All AIX code is PIC.
 731       if test "$host_cpu" = ia64; then
 732         # AIX 5 now supports IA64 processor
 733         lt_cv_prog_cc_static='-Bstatic'
 734       else
 735         lt_cv_prog_cc_static='-bnso -bI:/lib/syscalls.exp'
 736       fi
 737       ;;
 738     chorus*)
 739       case $cc_basename in
 740       cxch68)
 741         # Green Hills C++ Compiler
 742         # 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"
 743         ;;
 744       esac
 745       ;;
 746     dgux*)
 747       case $cc_basename in
 748         ec++)
 749           ac_cv_prog_cc_pic='-KPIC'
 750           ;;
 751         ghcx)
 752           # Green Hills C++ Compiler
 753           ac_cv_prog_cc_pic='-pic'
 754           ;;
 755         *)
 756           ;;
 757       esac
 758       ;;
 759     freebsd*)
 760       # FreeBSD uses GNU C++
 761       ;;
 762     gnu*)
 763       ;;
 764     hpux9* | hpux10* | hpux11*)
 765       case $cc_basename in
 766         CC)
 767           ac_cv_prog_cc_wl='-Wl,'
 768           ac_cv_prog_cc_static="${ac_cv_prog_cc_wl}-a ${ac_cv_prog_cc_wl}archive"
 769           ac_cv_prog_cc_pic='+Z'
 770           ;;
 771         aCC)
 772           ac_cv_prog_cc_wl='-Wl,'
 773           ac_cv_prog_cc_static="${ac_cv_prog_cc_wl}-a ${ac_cv_prog_cc_wl}archive"
 774           ac_cv_prog_cc_pic='+Z'
 775           ;;
 776         *)
 777           ;;
 778       esac
 779       ;;
 780     irix5* | irix6*)
 781       case $cc_basename in
 782         CC)
 783           ac_cv_prog_cc_wl='-Wl,'
 784           ac_cv_prog_cc_static='-non_shared'
 785           ac_cv_prog_cc_pic='-KPIC'
 786           ;;
 787         *)
 788           ;;
 789       esac
 790       ;;
 791     linux*)
 792       case $cc_basename in
 793         KCC)
 794           # KAI C++ Compiler
 795           ac_cv_prog_cc_wl='--backend -Wl,'
 796           ac_cv_prog_cc_pic='-fPIC'
 797           ;;
 798         cxx)
 799           # Compaq C++
 800           # Make sure the PIC flag is empty.  It appears that all Alpha
 801           # Linux and Compaq Tru64 Unix objects are PIC.
 802           ac_cv_prog_cc_pic=
 803           ac_cv_prog_cc_static='-non_shared'
 804           ;;
 805         *)
 806           ;;
 807       esac
 808       ;;
 809     lynxos*)
 810       ;;
 811     m88k*)
 812       ;;
 813     mvs*)
 814       case $cc_basename in
 815         cxx)
 816           ac_cv_prog_cc_pic='-W c,exportall'
 817           ;;
 818         *)
 819           ;;
 820       esac
 821       ;;
 822     netbsd*)
 823       ;;
 824     osf3* | osf4* | osf5*)
 825       case $cc_basename in
 826         KCC)
 827           ac_cv_prog_cc_wl='--backend -Wl,'
 828           ;;
 829         RCC)
 830           # Rational C++ 2.4.1
 831           ac_cv_prog_cc_pic='-pic'
 832           ;;
 833         cxx)
 834           # Digital/Compaq C++
 835           ac_cv_prog_cc_wl='-Wl,'
 836           # Make sure the PIC flag is empty.  It appears that all Alpha
 837           # Linux and Compaq Tru64 Unix objects are PIC.
 838           ac_cv_prog_cc_pic=
 839           ac_cv_prog_cc_static='-non_shared'
 840           ;;
 841         *)
 842           ;;
 843       esac
 844       ;;
 845     psos*)
 846       ;;
 847     sco*)
 848       case $cc_basename in
 849         CC)
 850           ac_cv_prog_cc_pic='-fPIC'
 851           ;;
 852         *)
 853           ;;
 854       esac
 855       ;;
 856     solaris*)
 857       case $cc_basename in
 858         CC)
 859           # Sun C++ 4.2, 5.x and Centerline C++
 860           ac_cv_prog_cc_pic='-KPIC'
 861           ac_cv_prog_cc_static='-Bstatic'
 862           ac_cv_prog_cc_wl='-Qoption ld '
 863           ;;
 864         gcx)
 865           # Green Hills C++ Compiler
 866           ac_cv_prog_cc_pic='-PIC'
 867           ;;
 868         *)
 869           ;;
 870       esac
 871       ;;
 872     sunos4*)
 873       case $cc_basename in
 874         CC)
 875           # Sun C++ 4.x
 876           ac_cv_prog_cc_pic='-pic'
 877           ac_cv_prog_cc_static='-Bstatic'
 878           ;;
 879         lcc)
 880           # Lucid
 881           ac_cv_prog_cc_pic='-pic'
 882           ;;
 883         *)
 884           ;;
 885       esac
 886       ;;
 887     tandem*)
 888       case $cc_basename in
 889         NCC)
 890           # NonStop-UX NCC 3.20
 891           ac_cv_prog_cc_pic='-KPIC'
 892           ;;
 893         *)
 894           ;;
 895       esac
 896       ;;
 897     unixware*)
 898       ;;
 899     vxworks*)
 900       ;;
 901     *)
 902       ac_cv_prog_cc_can_build_shared=no
 903       ;;
 904   esac
 905 fi
 906
 907 case "$host_os" in
 908     # Platforms which do not suport PIC and -DPIC is meaningless
 909     # on them:
 910     *djgpp*)
 911       ac_cv_prog_cc_pic=
 912       ;;
 913     *)
 914       ac_cv_prog_cc_pic="$ac_cv_prog_cc_pic -DPIC"
 915       ;;
 916 esac
 917
 918
 919 # Figure out "hidden" C++ library dependencies from verbose
 920 # compiler output whening linking a shared library.
 921 cat > conftest.$ac_ext <<EOF
 922 class Foo
 923 {
 924 public:
 925   Foo (void) { a = 0; }
 926 private:
 927   int a;
 928 };
 929 EOF
 930
 931
 932 if (eval $ac_compile) 2>&5; then
 933   # Parse the compiler output and extract the necessary
 934   # objects, libraries and library flags.
 935
 936   # Sentinel used to keep track of whether or not we are before
 937   # the conftest object file.
 938   pre_test_object_deps_done=no
 939
 940   for p in `eval $output_verbose_link_cmd`; do
 941
 942     case $p in
 943
 944     -L* | -R* | -l*)
 945        # Some compilers place space between "-{L,R}" and the path.
 946        # Remove the space.
 947        if test $p = "-L" \
 948           || test $p = "-R"; then
 949          prev=$p
 950          continue
 951        else
 952          prev=
 953        fi
 954
 955        if test "$pre_test_object_deps_done" = no; then
 956          case $p in
 957          -L* | -R*)
 958            # Internal compiler library paths should come after those
 959            # provided the user.  The postdeps already come after the
 960            # user supplied libs so there is no need to process them.
 961            if test -z "$compiler_lib_search_path"; then
 962              compiler_lib_search_path="${prev}${p}"
 963            else
 964              compiler_lib_search_path="${compiler_lib_search_path} ${prev}${p}"
 965            fi
 966            ;;
 967          # The "-l" case would never come before the object being
 968          # linked, so don't bother handling this case.
 969          esac
 970        else
 971          if test -z "$postdeps"; then
 972            postdeps="${prev}${p}"
 973          else
 974            postdeps="${postdeps} ${prev}${p}"
 975          fi
 976        fi
 977        ;;
 978
 979     *.$objext)
 980        # This assumes that the test object file only shows up
 981        # once in the compiler output.
 982        if test "$p" = "conftest.$objext"; then
 983          pre_test_object_deps_done=yes
 984          continue
 985        fi
 986
 987        if test "$pre_test_object_deps_done" = no; then
 988          if test -z "$predep_objects"; then
 989            predep_objects="$p"
 990          else
 991            predep_objects="$predep_objects $p"
 992          fi
 993        else
 994          if test -z "$postdep_objects"; then
 995            postdep_objects="$p"
 996          else
 997            postdep_objects="$postdep_objects $p"
 998          fi
 999        fi
1000        ;;
1001
1002     *) ;; # Ignore the rest.
1003
1004     esac
1005   done
1006
1007   # Clean up.
1008   rm -f a.out
1009 else
1010   echo "ltcf-cxx.sh: error: problem compiling test program"
1011 fi
1012
1013 $rm -f confest.$objext
1014
1015 case " $postdeps " in
1016 *" -lc "*) need_lc=no ;;
1017 *) need_lc=yes ;;
1018 esac