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