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