admin/ltcf-cxx.sh

   1 #### This script is meant to be sourced by ltconfig.
   2
   3 # $Id$
   4
   5 # ltcf-cxx.sh - Create a C++ compiler specific configuration
   6 #
   7 # Copyright (C) 1996-1999,2000 Free Software Foundation, Inc.
   8 # Originally by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996
   9 #
  10 # Original C++ support by:
  11 #    Alexandre Oliva <oliva@lsd.ic.unicamp.br>
  12 #    Ossama Othman <ossama@debian.org>
  13 #    Thomas Thanner <tanner@gmx.de>
  14 #
  15 # This file is free software; you can redistribute it and/or modify it
  16 # under the terms of the GNU General Public License as published by
  17 # the Free Software Foundation; either version 2 of the License, or
  18 # (at your option) any later version.
  19 #
  20 # This program is distributed in the hope that it will be useful, but
  21 # WITHOUT ANY WARRANTY; without even the implied warranty of
  22 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  23 # General Public License for more details.
  24 #
  25 # You should have received a copy of the GNU General Public License
  26 # along with this program; if not, write to the Free Software
  27 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  28 #
  29 # As a special exception to the GNU General Public License, if you
  30 # distribute this file as part of a program that contains a
  31 # configuration script generated by Autoconf, you may include it under
  32 # the same distribution terms that you use for the rest of that program.
  33
  34
  35 # Source file extension for C++ test sources.
  36 ac_ext=cc
  37
  38 # Object file extension for compiled C++ test sources.
  39 objext=o
  40
  41 # Code to be used in simple compile tests
  42 lt_simple_compile_test_code="int some_variable = 0;"
  43
  44 # Code to be used in simple link tests
  45 lt_simple_link_test_code='int main(int, char *[]) { return (0); }'
  46
  47 # C++ compiler
  48 CXX=${CXX-c++}
  49
  50 # ltmain only uses $CC for tagged configurations so make sure $CC is set.
  51 CC=${CC-"$CXX"}
  52 CFLAGS=${CFLAGS-"$CXXFLAGS"}
  53
  54 # Allow CC (or CXX) to be a program name with arguments.
  55 set dummy $CC
  56 compiler=$2
  57 cc_basename=`$echo X"$compiler" | $Xsed -e 's%^.*/%%'`
  58
  59 # we are optimistic. (Too optimistic if you ask me, down there we switch it
  60 # off again for most platforms ;) (MM)
  61 ld_shlibs=yes
  62
  63 # Check if we are using GNU gcc  (taken/adapted from configure script)
  64 # We need to check here since "--with-gcc" is set at configure time,
  65 # not ltconfig time!
  66 cat > conftest.$ac_ext <<EOF
  67 #ifdef __GNUC__
  68   yes;
  69 #endif
  70 EOF
  71 if { ac_try='${CC-c++} -E conftest.$ac_ext'; { (eval echo \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
  72   with_gcc=yes
  73
  74   # Set up default GNU C++ configuration
  75
  76   # Check if GNU C++ uses GNU ld as the underlying linker, since the
  77   # archiving commands below assume that GNU ld is being used.
  78   if eval "`$CC -print-prog-name=ld` --version 2>&1" | \
  79       egrep 'GNU ld' > /dev/null; then
  80     with_gnu_ld=yes
  81
  82     archive_cmds='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
  83     archive_expsym_cmds='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
  84
  85     runpath_var=LD_RUN_PATH
  86     hardcode_libdir_flag_spec='${wl}--rpath ${wl}$libdir'
  87     export_dynamic_flag_spec='${wl}--export-dynamic'
  88
  89     # If archive_cmds runs LD, not CC, wlarc should be empty
  90     # XXX I think wlarc can be eliminated in ltcf-cxx, but I need to
  91     #     investigate it a little bit more. (MM)
  92     wlarc='${wl}'
  93
  94     # ancient GNU ld didn't support --whole-archive et. al.
  95     if eval "`$CC -print-prog-name=ld` --help 2>&1" | \
  96         egrep 'no-whole-archive' > /dev/null; then
  97       whole_archive_flag_spec="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
  98     else
  99       whole_archive_flag_spec=
 100     fi
 101   else
 102     with_gnu_ld=no
 103     wlarc=
 104
 105     # A generic and very simple default shared library creation
 106     # command for GNU C++ for the case where it uses the native
 107     # linker, instead of GNU ld.  If possible, this setting should
 108     # overridden to take advantage of the native linker features on
 109     # the platform it is being used on.
 110     archive_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib'
 111   fi
 112
 113   # Commands to make compiler produce verbose output that lists
 114   # what "hidden" libraries, object files and flags are used when
 115   # linking a shared library.
 116   output_verbose_link_cmds='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | egrep "\-L"'
 117
 118 else
 119   with_gcc=no
 120   with_gnu_ld=no
 121   wlarc=
 122 fi
 123
 124 echo "ltcf-cxx: with_gcc=$with_gcc ; with_gnu_ld=$with_gnu_ld"
 125
 126 # In general, the C++ compiler should always link C++ objects.
 127 LD="$CC"
 128 LDFLAGS="$LDFLAGS"
 129
 130 # PORTME: fill in a description of your system's C++ link characteristics
 131 case "$host_os" in
 132   aix3*)
 133     # FIXME: insert proper C++ library support
 134     ld_shlibs=no
 135     ;;
 136   aix4*)
 137     case "$cc_basename" in
 138       xlC)
 139         # IBM C++ compiler (xlC).  Anything older than Visual Age C++ 5.0 probably won't work.
 140         archive_cmds='$CC -qmkshrobj $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-G -o $lib'
 141         archive_expsym_cmds='$CC -qmkshrobj $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-G ${wl}-bE:$export_symbols -o $lib'
 142         ;;
 143       *)
 144         if test "$with_gcc" = yes; then
 145           # GNU C++ compiler
 146           archive_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-G -o $lib'
 147           archive_expsym_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-G ${wl}-bE:$export_symbols -o $lib'
 148         fi
 149         ;;
 150     esac
 151
 152     hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:/usr/lib:/lib'
 153     hardcode_libdir_separator=':'
 154     hardcode_direct=unsupported
 155     link_all_deplibs=yes
 156     ;;
 157   chorus*)
 158     case "$cc_basename" in
 159       *)
 160         # FIXME: insert proper C++ library support
 161         ld_shlibs=no
 162         ;;
 163     esac
 164     ;;
 165   dgux*)
 166     case "$cc_basename" in
 167       ec++)
 168         # FIXME: insert proper C++ library support
 169         ld_shlibs=no
 170         ;;
 171       ghcx)
 172         # Green Hills C++ Compiler
 173         # FIXME: insert proper C++ library support
 174         ld_shlibs=no
 175         ;;
 176       *)
 177         # FIXME: insert proper C++ library support
 178         ld_shlibs=no
 179         ;;
 180     esac
 181     ;;
 182   freebsd*)
 183     # FreeBSD uses GNU C++ and GNU ld
 184     skip_need_lc_check=yes
 185     remove_lgcc=yes
 186     ;;
 187   hpux*)
 188     case "$cc_basename" in
 189       CC)
 190         # FIXME: insert proper C++ library support
 191         ld_shlibs=no
 192         ;;
 193       aCC)
 194         case "$host_os" in
 195         hpux9*) archive_cmds='$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 $lib' ;;
 196         *) archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' ;;
 197         esac
 198         hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
 199         hardcode_libdir_separator=:
 200         hardcode_direct=yes
 201         hardcode_minus_L=yes # Not in the search PATH, but as the default
 202                              # location of the library.
 203         export_dynamic_flag_spec='${wl}-E'
 204
 205         # Commands to make compiler produce verbose output that lists
 206         # what "hidden" libraries, object files and flags are used when
 207         # linking a shared library.
 208         #
 209         # There doesn't appear to be a way to prevent this compiler from
 210         # explicitly linking system object files so we need to strip them
 211         # from the output so that they don't get included in the library
 212         # dependencies.
 213         output_verbose_link_cmds='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | egrep "\-L"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; echo $list'
 214         ;;
 215       *)
 216         if test "$with_gcc" = yes && test "$with_gnu_ld" = no ; then
 217           # MM: for HP-UX and g++ -fPIC is needed to link pic objects together
 218           archive_cmds='$CC -shared -fPIC ${wl}+h ${wl}$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib'
 219           hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
 220           hardcode_libdir_separator=:
 221           hardcode_direct=yes
 222           hardcode_minus_L=yes
 223           export_dynamic_flag_spec='${wl}-E'
 224           output_verbose_link_cmds='$CC -shared -fPIC $CFLAGS -v conftest.$objext 2>&1 | egrep "\-L"'
 225           remove_lgcc=yes
 226         fi
 227         if test "$with_gcc" = no ; then
 228           # FIXME: insert proper C++ library support
 229           ld_shlibs=no
 230         fi
 231         ;;
 232     esac
 233     ;;
 234   irix5* | irix6*)
 235     case "$cc_basename" in
 236       CC)
 237         # SGI C++
 238         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 $lib'
 239
 240         # Archives containing C++ object files must be created using
 241         # "CC -ar", where "CC" is the IRIX C++ compiler.  This is
 242         # necessary to make sure instantiated templates are included
 243         # in the archive.
 244         old_archive_cmds='$CC -ar -WR,-u -o $oldlib $oldobjs'
 245         ;;
 246       *)
 247         if test "$with_gcc" = yes; then
 248           if test "$with_gnu_ld" = no; then
 249             archive_cmds='$CC -nostdlib -D_LANGUAGE_C_CPLUS_PLUS -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && echo ${wl}-set_version ${wl}$verstring` ${wl}-update_registry ${wl}${objdir}/so_locations -o $lib'
 250           else
 251             archive_cmds='$LD -shared $predep_objects $libobjs $deplibs $postdep_objects $linker_flags -soname $soname `test -n "$verstring" && echo -set_version $verstring` -o $lib'
 252           fi
 253         fi
 254         ;;
 255     esac
 256     hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 257     hardcode_libdir_separator=:
 258     link_all_deplibs=yes
 259     ;;
 260   linux*)
 261     case "$cc_basename" in
 262       KCC)
 263         # Kuck and Associates, Inc. (KAI) C++ Compiler
 264
 265         # KCC will only create a shared library if the output file
 266         # ends with ".so" (or ".sl" for HP-UX), so rename the library
 267         # to its proper name (with version) after linking.
 268         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'
 269         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 $lib'
 270
 271         # Commands to make compiler produce verbose output that lists
 272         # what "hidden" libraries, object files and flags are used when
 273         # linking a shared library.
 274         #
 275         # There doesn't appear to be a way to prevent this compiler from
 276         # explicitly linking system object files so we need to strip them
 277         # from the output so that they don't get included in the library
 278         # dependencies.
 279         output_verbose_link_cmds='templist=`$CC $CFLAGS -v conftest.$objext -o libconftest.so 2>&1 | egrep "ld"`; rm -f libconftest.so; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; echo $list'
 280
 281         hardcode_libdir_flag_spec='${wl}--rpath,$libdir'
 282         export_dynamic_flag_spec='${wl}--export-dynamic'
 283
 284         # Archives containing C++ object files must be created using
 285         # "CC -Bstatic", where "CC" is the KAI C++ compiler.
 286         old_archive_cmds='$CC -Bstatic -o $oldlib $oldobjs'
 287         ;;
 288       cxx)
 289         # Compaq C++
 290         archive_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
 291         archive_expsym_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname  -o $lib ${wl}-retain-symbols-file $wl$export_symbols'
 292
 293         runpath_var=LD_RUN_PATH
 294         hardcode_libdir_flag_spec='-rpath $libdir'
 295         hardcode_libdir_separator=:
 296
 297         # Commands to make compiler produce verbose output that lists
 298         # what "hidden" libraries, object files and flags are used when
 299         # linking a shared library.
 300         #
 301         # There doesn't appear to be a way to prevent this compiler from
 302         # explicitly linking system object files so we need to strip them
 303         # from the output so that they don't get included in the library
 304         # dependencies.
 305         output_verbose_link_cmds='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | grep "ld"`; templist=`echo $templist | sed "s/\(^.*ld.*\)\( .*ld .*$\)/\1/"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; echo $list'
 306         ;;
 307       insure)
 308         if test "$with_gcc" = yes; then
 309           # Insure++ together with gcc probably means also GNU ld
 310           # only -whole-archive isn't supported
 311           whole_archive_flag_spec=""
 312           # and we can't use -nostdlib, because bloody insure has no way to
 313           # output the linkline (-Zvm isn't working as documented), so we don't
 314           # know the depending libs. So we hope, insure gets it right anyway.
 315           archive_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
 316           runpath_var=LD_RUN_PATH
 317           hardcode_libdir_flag_spec='${wl}--rpath ${wl}$libdir'
 318           export_dynamic_flag_spec='${wl}--export-dynamic'
 319           output_verbose_link_cmds=""
 320         fi
 321     esac
 322     ;;
 323   lynxos*)
 324     # FIXME: insert proper C++ library support
 325     ld_shlibs=no
 326     ;;
 327   m88k*)
 328     # FIXME: insert proper C++ library support
 329     ld_shlibs=no
 330     ;;
 331   mvs*)
 332     case "$cc_basename" in
 333       cxx)
 334         # FIXME: insert proper C++ library support
 335         ld_shlibs=no
 336         ;;
 337       *)
 338         # FIXME: insert proper C++ library support
 339         ld_shlibs=no
 340         ;;
 341     esac
 342     ;;
 343   netbsd*)
 344     if test "$with_gcc" = no || test "$with_gnu_ld" = no; then
 345       # This should only be triggered for NetBSD/a.out
 346       # Add in C++ constructor/destructor support
 347       if test -f /usr/pkg/lib/c++rt0/c++rt0.o.PIC; then
 348         cppopts="/usr/pkg/lib/c++rt0/c++rt0.o.PIC"
 349       elif test -f /usr/lib/c++rt0.o; then
 350         cppopts="/usr/lib/c++rt0.o"
 351       fi
 352       archive_cmds='ld -Bshareable -o $lib '"$cppopts"' $libobjs $deplibs $linkopts'
 353     fi
 354     ;;
 355   openbsd*)
 356     if test "$with_gcc" = yes && test "$with_gnu_ld" = no; then
 357       # MM: OpenBSD 2.7 uses G++, but not GNU ld
 358       archive_cmds='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib'
 359       archive_expsym_cmds='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib'
 360       old_archive_cmds="$old_archive_cmds~"'$RANLIB $oldlib'
 361       hardcode_libdir_flag_spec='${wl}-R$libdir'
 362       hardcode_direct=yes
 363       hardcode_shlibpath_var=no
 364       whole_archive_flag_spec='${wl}-Bforcearchive'
 365       remove_lgcc=yes
 366     fi
 367     ;;
 368   osf3*)
 369     if test "$with_gcc" = yes && test "$with_gnu_ld" = no; then
 370       allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
 371       archive_cmds='$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 $lib'
 372
 373       hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 374       hardcode_libdir_separator=:
 375
 376       # Commands to make compiler produce verbose output that lists
 377       # what "hidden" libraries, object files and flags are used when
 378       # linking a shared library.
 379       output_verbose_link_cmds='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | egrep "\-L"'
 380     else
 381       case "$cc_basename" in
 382         KCC)
 383           # Kuck and Associates, Inc. (KAI) C++ Compiler
 384
 385           # KCC will only create a shared library if the output file
 386           # ends with ".so" (or ".sl" for HP-UX), so rename the library
 387           # to its proper name (with version) after linking.
 388           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 $lib'
 389
 390           hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
 391           hardcode_libdir_separator=:
 392
 393           # Archives containing C++ object files must be created using
 394           # "CC -Bstatic", where "CC" is the KAI C++ compiler.
 395           old_archive_cmds='$CC -Bstatic -o $oldlib $oldobjs'
 396
 397           ;;
 398         RCC)
 399           # Rational C++ 2.4.1
 400           # FIXME: insert proper C++ library support
 401           ld_shlibs=no
 402           ;;
 403         cxx)
 404           allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
 405           archive_cmds='$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 $lib'
 406
 407           hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 408           hardcode_libdir_separator=:
 409
 410           # Commands to make compiler produce verbose output that lists
 411           # what "hidden" libraries, object files and flags are used when
 412           # linking a shared library.
 413           #
 414           # There doesn't appear to be a way to prevent this compiler from
 415           # explicitly linking system object files so we need to strip them
 416           # from the output so that they don't get included in the library
 417           # dependencies.
 418           output_verbose_link_cmds='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | grep "ld" | grep -v "ld:"`; templist=`echo $templist | sed "s/\(^.*ld.*\)\( .*ld.*$\)/\1/"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; echo $list'
 419           ;;
 420         *)
 421           # FIXME: insert proper C++ library support
 422           ld_shlibs=no
 423           ;;
 424       esac
 425     fi
 426     ;;
 427   osf4* | osf5*)
 428     if test "$with_gcc" = yes && test "$with_gnu_ld" = no; then
 429       allow_undefined_flag=' -Wl,-expect_unresolved -Wl,\*'
 430       no_undefined_flag=' -Wl,-expect_unresolved -Wl,\*'
 431       archive_cmds='$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 $lib'
 432
 433       hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 434       hardcode_libdir_separator=:
 435
 436       # Commands to make compiler produce verbose output that lists
 437       # what "hidden" libraries, object files and flags are used when
 438       # linking a shared library.
 439       output_verbose_link_cmds='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | egrep "\-L"'
 440     else
 441       case "$cc_basename" in
 442         KCC)
 443           # Kuck and Associates, Inc. (KAI) C++ Compiler
 444
 445           # KCC will only create a shared library if the output file
 446           # ends with ".so" (or ".sl" for HP-UX), so rename the library
 447           # to its proper name (with version) after linking.
 448           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 $lib'
 449
 450           hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
 451           hardcode_libdir_separator=:
 452
 453           # Archives containing C++ object files must be created using
 454           # the KAI C++ compiler.
 455           old_archive_cmds='$CC -o $oldlib $oldobjs'
 456           ;;
 457         RCC)
 458           # Rational C++ 2.4.1
 459           # FIXME: insert proper C++ library support
 460           ld_shlibs=no
 461           ;;
 462         cxx)
 463           allow_undefined_flag=' -Wl,-expect_unresolved -Wl,\*'
 464           no_undefined_flag=' -Wl,-expect_unresolved -Wl,\*'
 465           archive_cmds='$CC -shared${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` -update_registry ${objdir}/so_locations -o $lib'
 466
 467           hardcode_libdir_flag_spec='-rpath $libdir'
 468           hardcode_libdir_separator=:
 469
 470           # Commands to make compiler produce verbose output that lists
 471           # what "hidden" libraries, object files and flags are used when
 472           # linking a shared library.
 473           #
 474           # There doesn't appear to be a way to prevent this compiler from
 475           # explicitly linking system object files so we need to strip them
 476           # from the output so that they don't get included in the library
 477           # dependencies.
 478           output_verbose_link_cmds='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | grep "ld" | grep -v "ld:"`; templist=`echo $templist | sed "s/\(^.*ld.*\)\( .*ld.*$\)/\1/"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; echo $list'
 479           ;;
 480         *)
 481           # FIXME: insert proper C++ library support
 482           ld_shlibs=no
 483           ;;
 484       esac
 485     fi
 486     ;;
 487   psos*)
 488     # FIXME: insert proper C++ library support
 489     ld_shlibs=no
 490     ;;
 491   sco*)
 492     case "$cc_basename" in
 493       CC)
 494         # FIXME: insert proper C++ library support
 495         ld_shlibs=no
 496         ;;
 497       *)
 498         # FIXME: insert proper C++ library support
 499         ld_shlibs=no
 500         ;;
 501     esac
 502     ;;
 503   sunos4*)
 504     case "$cc_basename" in
 505       CC)
 506         # Sun C++ 4.x
 507         # FIXME: insert proper C++ library support
 508         ld_shlibs=no
 509         ;;
 510       lcc)
 511         # Lucid
 512         # FIXME: insert proper C++ library support
 513         ld_shlibs=no
 514         ;;
 515       *)
 516         # FIXME: insert proper C++ library support
 517         ld_shlibs=no
 518         ;;
 519     esac
 520     ;;
 521   solaris*)
 522     case "$cc_basename" in
 523       CC)
 524         # Sun C++ 4.2, 5.x and Centerline C++
 525         no_undefined_flag=' -ztext'
 526         archive_cmds='$CC -G${allow_undefined_flag} -nolib -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
 527         archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
 528         $CC -G${allow_undefined_flag} -nolib ${wl}-M ${wl}$lib.exp -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$rm $lib.exp'
 529
 530         hardcode_libdir_flag_spec='-R$libdir'
 531         hardcode_shlibpath_var=no
 532         case "$host_os" in
 533           solaris2.[0-5] | solaris2.[0-5].*) ;;
 534           *)
 535             # The C++ compiler is used as linker so we must use $wl
 536             # flag to pass the commands to the underlying system
 537             # linker.
 538             # Supported since Solaris 2.6 (maybe 2.5.1?)
 539             whole_archive_flag_spec='${wl}-z ${wl}allextract$convenience ${wl}-z ${wl}defaultextract'
 540             ;;
 541         esac
 542         link_all_deplibs=yes
 543
 544         # Commands to make compiler produce verbose output that lists
 545         # what "hidden" libraries, object files and flags are used when
 546         # linking a shared library.
 547         #
 548         # There doesn't appear to be a way to prevent this compiler from
 549         # explicitly linking system object files so we need to strip them
 550         # from the output so that they don't get included in the library
 551         # dependencies.
 552         output_verbose_link_cmds='templist=`$CC -G $CFLAGS -v conftest.$objext 2>&1 | egrep "\-R|\-L"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; echo $list'
 553
 554         # Archives containing C++ object files must be created using
 555         # "CC -xar", where "CC" is the Sun C++ compiler.  This is
 556         # necessary to make sure instantiated templates are included
 557         # in the archive.
 558         old_archive_cmds='$CC -xar -o $oldlib $oldobjs'
 559         ;;
 560       gcx)
 561         # Green Hills C++ Compiler
 562         archive_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'
 563
 564         # The C++ compiler must be used to create the archive.
 565         old_archive_cmds='$CC $LDFLAGS -archive -o $oldlib $oldobjs'
 566         ;;
 567       *)
 568         # GNU C++ compiler with Solaris linker
 569         if test "$with_gcc" = yes && test "$with_gnu_ld" = no; then
 570           if $CC --version | egrep -v '^2\.7' > /dev/null; then
 571             archive_cmds='$LD -shared -nostdlib $LDFLAGS $predep_objects $libobjs $deplibs $postdep_objects $linker_flags ${wl}-h $wl$soname -o $lib'
 572             archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
 573                 $LD -shared -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags ${wl}-h $wl$soname~$rm $lib.exp'
 574
 575             # Commands to make compiler produce verbose output that lists
 576             # what "hidden" libraries, object files and flags are used when
 577             # linking a shared library.
 578             output_verbose_link_cmds="$CC -shared $CFLAGS -v conftest.$objext 2>&1 | egrep \"\-L\""
 579           else
 580             # g++ 2.7 appears to require `-G' NOT `-shared' on this
 581             # platform.
 582             archive_cmds='$LD -G -nostdlib $LDFLAGS $predep_objects $libobjs $deplibs $postdep_objects $linker_flags ${wl}-h $wl$soname -o $lib'
 583             archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
 584                 $LD -G -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags ${wl}-h $wl$soname~$rm $lib.exp'
 585
 586             # Commands to make compiler produce verbose output that lists
 587             # what "hidden" libraries, object files and flags are used when
 588             # linking a shared library.
 589             output_verbose_link_cmds="$CC -G $CFLAGS -v conftest.$objext 2>&1 | egrep \"\-L\""
 590           fi
 591
 592           hardcode_libdir_flag_spec='${wl}-R $wl$libdir'
 593         fi
 594         ;;
 595     esac
 596     ;;
 597   tandem*)
 598     case "$cc_basename" in
 599       NCC)
 600         # NonStop-UX NCC 3.20
 601         # FIXME: insert proper C++ library support
 602         ld_shlibs=no
 603         ;;
 604       *)
 605         # FIXME: insert proper C++ library support
 606         ld_shlibs=no
 607         ;;
 608     esac
 609     ;;
 610   unixware*)
 611     # FIXME: insert proper C++ library support
 612     ld_shlibs=no
 613     ;;
 614   vxworks*)
 615     # FIXME: insert proper C++ library support
 616     ld_shlibs=no
 617     ;;
 618   *)
 619     # FIXME: insert proper C++ library support
 620     ld_shlibs=no
 621     ;;
 622 esac
 623
 624
 625 ## Compiler Characteristics: PIC flags, static flags, etc
 626
 627 # We don't use cached values here since only the C compiler
 628 # characteristics should be cached.
 629 ac_cv_prog_cc_pic=
 630 ac_cv_prog_cc_shlib=
 631 ac_cv_prog_cc_wl=
 632 ac_cv_prog_cc_static=
 633 ac_cv_prog_cc_no_builtin=
 634 ac_cv_prog_cc_can_build_shared=$can_build_shared
 635
 636 # It is not enough to reset these cached values, they must be unset.
 637 unset ac_cv_prog_cc_pic_works
 638 unset ac_cv_prog_cc_static_works
 639
 640 if test "$with_gcc" = yes; then
 641   ac_cv_prog_cc_wl='-Wl,'
 642   ac_cv_prog_cc_static='-static'
 643
 644   case "$host_os" in
 645   beos* | irix5* | irix6* | osf3* | osf4* | osf5*)
 646     # PIC is the default for these OSes.
 647     ;;
 648   aix*)
 649     # Below there is a dirty hack to force normal static linking with -ldl
 650     # The problem is because libdl dynamically linked with both libc and
 651     # libC (AIX C++ library), which obviously doesn't included in libraries
 652     # list by gcc. This cause undefined symbols with -static flags.
 653     # This hack allows C programs to be linked with "-static -ldl", but
 654     # we not sure about C++ programs.
 655     ac_cv_prog_cc_static="$ac_cv_prog_cc_static ${ac_cv_prog_cc_wl}-lC"
 656     ;;
 657   cygwin* | mingw* | os2*)
 658     # This hack is so that the source file can tell whether it is being
 659     # built for inclusion in a dll (and should export symbols for example).
 660     ac_cv_prog_cc_pic='-DDLL_EXPORT'
 661     ;;
 662   amigaos*)
 663     # FIXME: we need at least 68020 code to build shared libraries, but
 664     # adding the `-m68020' flag to GCC prevents building anything better,
 665     # like `-m68040'.
 666     ac_cv_prog_cc_pic='-m68020 -resident32 -malways-restore-a4'
 667     ;;
 668   sysv4*MP*)
 669     if test -d /usr/nec; then
 670       ac_cv_prog_cc_pic=-Kconform_pic
 671     fi
 672     ;;
 673   *)
 674     ac_cv_prog_cc_pic='-fPIC'
 675     ;;
 676   esac
 677 else
 678   case "$host_os" in
 679     aix4*)
 680       # All AIX code is PIC.
 681       ;;
 682     chorus*)
 683       case "$cc_basename" in
 684       cxch68)
 685         # Green Hills C++ Compiler
 686         # 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 $MVME_DIR/lib/classix/libcx.s.a"
 687         ;;
 688       esac
 689       ;;
 690     dgux*)
 691       case "$cc_basename" in
 692         ec++)
 693           ac_cv_prog_cc_pic='-KPIC'
 694           ;;
 695         ghcx)
 696           # Green Hills C++ Compiler
 697           ac_cv_prog_cc_pic='-pic'
 698           ;;
 699         *)
 700           ;;
 701       esac
 702       ;;
 703     freebsd*)
 704       # FreeBSD uses GNU C++
 705       ;;
 706     hpux9* | hpux10* | hpux11*)
 707       case "$cc_basename" in
 708         CC)
 709           ac_cv_prog_cc_wl='-Wl,'
 710           ac_cv_prog_cc_static="${ac_cv_prog_cc_wl}-a ${ac_cv_prog_cc_wl}archive"
 711           ac_cv_prog_cc_pic='+Z'
 712           ;;
 713         aCC)
 714           ac_cv_prog_cc_wl='-Wl,'
 715           ac_cv_prog_cc_static="${ac_cv_prog_cc_wl}-a ${ac_cv_prog_cc_wl}archive"
 716           ac_cv_prog_cc_pic='+Z'
 717           ;;
 718         *)
 719           ;;
 720       esac
 721       ;;
 722     irix5* | irix6*)
 723       case "$cc_basename" in
 724         CC)
 725           ac_cv_prog_cc_wl='-Wl,'
 726           ac_cv_prog_cc_static='-non_shared'
 727           ac_cv_prog_cc_pic='-KPIC'
 728           ;;
 729         *)
 730           ;;
 731       esac
 732       ;;
 733     linux*)
 734       case "$cc_basename" in
 735         KCC)
 736           # KAI C++ Compiler
 737           ac_cv_prog_cc_wl='--backend -Wl,'
 738           ac_cv_prog_cc_pic='-fPIC'
 739           ;;
 740         cxx)
 741           # Compaq C++
 742           # Make sure the PIC flag is empty.  It appears that all Alpha
 743           # Linux and Compaq Tru64 Unix objects are PIC.
 744           ac_cv_prog_cc_pic=
 745           ac_cv_prog_cc_static='-non_shared'
 746           ;;
 747         *)
 748           ;;
 749       esac
 750       ;;
 751     lynxos*)
 752       ;;
 753     m88k*)
 754       ;;
 755     mvs*)
 756       case "$cc_basename" in
 757         cxx)
 758           ac_cv_prog_cc_pic='-W c,exportall'
 759           ;;
 760         *)
 761           ;;
 762       esac
 763       ;;
 764     netbsd*)
 765       ;;
 766     osf3* | osf4* | osf5*)
 767       case "$cc_basename" in
 768         KCC)
 769           ac_cv_prog_cc_wl='--backend -Wl,'
 770           ;;
 771         RCC)
 772           # Rational C++ 2.4.1
 773           ac_cv_prog_cc_pic='-pic'
 774           ;;
 775         cxx)
 776           # Digital/Compaq C++
 777           ac_cv_prog_cc_wl='-Wl,'
 778           # Make sure the PIC flag is empty.  It appears that all Alpha
 779           # Linux and Compaq Tru64 Unix objects are PIC.
 780           ac_cv_prog_cc_pic=
 781           ac_cv_prog_cc_static='-non_shared'
 782           ;;
 783         *)
 784           ;;
 785       esac
 786       ;;
 787     psos*)
 788       ;;
 789     sco*)
 790       case "$cc_basename" in
 791         CC)
 792           ac_cv_prog_cc_pic='-fPIC'
 793           ;;
 794         *)
 795           ;;
 796       esac
 797       ;;
 798     solaris*)
 799       case "$cc_basename" in
 800         CC)
 801           # Sun C++ 4.2, 5.x and Centerline C++
 802           ac_cv_prog_cc_pic='-KPIC'
 803           ac_cv_prog_cc_static='-Bstatic'
 804           ac_cv_prog_cc_wl='-Qoption ld '
 805           ;;
 806         gcx)
 807           # Green Hills C++ Compiler
 808           ac_cv_prog_cc_pic='-PIC'
 809           ;;
 810         *)
 811           ;;
 812       esac
 813       ;;
 814     sunos4*)
 815       case "$cc_basename" in
 816         CC)
 817           # Sun C++ 4.x
 818           ac_cv_prog_cc_pic='-pic'
 819           ac_cv_prog_cc_static='-Bstatic'
 820           ;;
 821         lcc)
 822           # Lucid
 823           ac_cv_prog_cc_pic='-pic'
 824           ;;
 825         *)
 826           ;;
 827       esac
 828       ;;
 829     tandem*)
 830       case "$cc_basename" in
 831         NCC)
 832           # NonStop-UX NCC 3.20
 833           ac_cv_prog_cc_pic='-KPIC'
 834           ;;
 835         *)
 836           ;;
 837       esac
 838       ;;
 839     unixware*)
 840       ;;
 841     vxworks*)
 842       ;;
 843     *)
 844       ac_cv_prog_cc_can_build_shared=no
 845       ;;
 846   esac
 847 fi
 848 ac_cv_prog_cc_pic="$ac_cv_prog_cc_pic -DPIC"
 849
 850
 851 # Figure out "hidden" C++ library dependencies from verbose
 852 # compiler output whening linking a shared library.
 853 cat > conftest.$ac_ext <<EOF
 854 class Foo
 855 {
 856 public:
 857   Foo (void) { a = 0; }
 858 private:
 859   int a;
 860 };
 861 EOF
 862
 863
 864 if (eval $ac_compile) 2>&5; then
 865   # Parse the compiler output and extract the necessary
 866   # objects, libraries and library flags.
 867
 868   # Sentinel used to keep track of whether or not we are before
 869   # the conftest object file.
 870   pre_test_object_deps_done=no
 871
 872   for p in `eval $output_verbose_link_cmds`; do
 873
 874     case $p in
 875
 876     -L* | -R* | -l*)
 877        # Some compilers place space between "-{L,R}" and the path.
 878        # Remove the space.
 879        if test $p = "-L" \
 880           || test $p = "-R"; then
 881          prev=$p
 882          continue
 883        else
 884          prev=
 885        fi
 886
 887        if test "$pre_test_object_deps_done" = no; then
 888          case $p in
 889          -L* | -R*)
 890            # Internal compiler library paths should come after those
 891            # provided the user.  The postdeps already come after the
 892            # user supplied libs so there is no need to process them.
 893            if test -z "$compiler_lib_search_path"; then
 894              compiler_lib_search_path="${prev}${p}"
 895            else
 896              compiler_lib_search_path="${compiler_lib_search_path} ${prev}${p}"
 897            fi
 898            ;;
 899          # The "-l" case would never come before the object being
 900          # linked, so don't bother handling this case.
 901          esac
 902        else
 903          add="${prev}${p}"
 904          if test "x$remove_lgcc" = "xyes" ; then
 905            case "$add" in
 906              -lgcc ) add="" ;;
 907            esac
 908          fi
 909          if test -n "$add" ; then
 910            if test -z "$postdeps"; then
 911              postdeps="$add"
 912            else
 913              postdeps="${postdeps} ${add}"
 914            fi
 915          fi
 916        fi
 917        ;;
 918
 919     *.$objext)
 920        # This assumes that the test object file only shows up
 921        # once in the compiler output.
 922        if test "$p" = "conftest.$objext"; then
 923          pre_test_object_deps_done=yes
 924          continue
 925        fi
 926
 927        if test "$pre_test_object_deps_done" = no; then
 928          if test -z "$predep_objects"; then
 929            predep_objects="$p"
 930          else
 931            predep_objects="$predep_objects $p"
 932          fi
 933        else
 934          if test -z "$postdep_objects"; then
 935            postdep_objects="$p"
 936          else
 937            postdep_objects="$postdep_objects $p"
 938          fi
 939        fi
 940        ;;
 941
 942     *) ;; # Ignore the rest.
 943
 944     esac
 945   done
 946
 947   # Clean up.
 948   rm -f a.out
 949 else
 950   echo "ltcf-cxx.sh: error: problem compiling test program"
 951 fi
 952
 953 $rm -f confest.$objext
 954
 955 if test "x$skip_need_lc_check" = "xyes" ; then
 956   need_lc=no
 957 else
 958   case " $postdeps " in
 959   *" -lc "*) need_lc=no ;;
 960   *) need_lc=yes ;;
 961   esac
 962 fi