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* ltcf-cxx.sh: Added file, required by 2000-11-18 merge.

binutils-2_11-branch
Ian Lance Taylor 26 years ago
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  1. 4
      ChangeLog
  2. 887
      ltcf-cxx.sh

4
ChangeLog
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@ -1,3 +1,7 @@
2000-11-20 Ian Lance Taylor <ian@zembu.com>
* ltcf-cxx.sh: Added file, required by 2000-11-18 merge.
2000-11-18 Alexandre Oliva <aoliva@redhat.com>
* Makefile.in: Merge with GCC and libgcj.

887
ltcf-cxx.sh
View File

@ -0,0 +1,887 @@
#### This script is meant to be sourced by ltconfig.
# ltcf-cxx.sh - Create a C++ compiler specific configuration
#
# Copyright (C) 1996-1999,2000 Free Software Foundation, Inc.
# Originally by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996
#
# Original C++ support by:Gary V. Vaughan <gvv@techie.com>
# Alexandre Oliva <oliva@lsd.ic.unicamp.br>
# Ossama Othman <ossama@debian.org>
# Thomas Thanner <tanner@gmx.de>
#
# This file is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
# As a special exception to the GNU General Public License, if you
# distribute this file as part of a program that contains a
# configuration script generated by Autoconf, you may include it under
# the same distribution terms that you use for the rest of that program.
# Source file extension for C++ test sources.
ac_ext=cc
# Object file extension for compiled C++ test sources.
objext=o
# Code to be used in simple compile tests
lt_simple_compile_test_code="int some_variable = 0;"
# Code to be used in simple link tests
lt_simple_link_test_code='int main(int, char *[]) { return (0); }'
# C++ compiler
CXX=${CXX-c++}
# ltmain only uses $CC for tagged configurations so make sure $CC is set.
CC=${CC-"$CXX"}
CFLAGS=${CFLAGS-"$CXXFLAGS"}
# Allow CC to be a program name with arguments.
set dummy $CC
compiler=$2
cc_basename=`$echo X"$compiler" | $Xsed -e 's%^.*/%%'`
# Check if we are using GNU gcc (taken/adapted from configure script)
# We need to check here since "--with-gcc" is set at configure time,
# not ltconfig time!
cat > conftest.$ac_ext <<EOF
#ifdef __GNUC__
yes;
#endif
EOF
if { ac_try='${CC-c++} -E conftest.$ac_ext'; { (eval echo \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
with_gcc=yes
# Set up default GNU C++ configuration
# Check if GNU C++ uses GNU ld as the underlying linker, since the
# archiving commands below assume that GNU ld is being used.
if eval "`$CC -print-prog-name=ld` --version 2>&1" | \
egrep 'GNU ld' > /dev/null; then
with_gnu_ld=yes
archive_cmds='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
archive_expsym_cmds='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
hardcode_libdir_flag_spec='${wl}--rpath ${wl}$libdir'
export_dynamic_flag_spec='${wl}--export-dynamic'
# If archive_cmds runs LD, not CC, wlarc should be empty
# XXX I think wlarc can be eliminated in ltcf-cxx, but I need to
# investigate it a little bit more. (MM)
wlarc='${wl}'
# ancient GNU ld didn't support --whole-archive et. al.
if eval "`$CC -print-prog-name=ld` --help 2>&1" | \
egrep 'no-whole-archive' > /dev/null; then
whole_archive_flag_spec="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
else
whole_archive_flag_spec=
fi
else
with_gnu_ld=no
wlarc=
# A generic and very simple default shared library creation
# command for GNU C++ for the case where it uses the native
# linker, instead of GNU ld. If possible, this setting should
# overridden to take advantage of the native linker features on
# the platform it is being used on.
archive_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib'
fi
# Commands to make compiler produce verbose output that lists
# what "hidden" libraries, object files and flags are used when
# linking a shared library.
output_verbose_link_cmds='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | egrep "\-L"'
else
with_gcc=no
with_gnu_ld=no
wlarc=
fi
# In general, the C++ compiler should always link C++ objects.
case $target in
*aix3* | *aix4*)
# AIX just has to be different, doesn't it? :-\
LD=makeC++SharedLib_r
LDFLAGS="$LDFLAGS -p 0"
;;
*)
LD="$CC"
LDFLAGS="$LDFLAGS"
;;
esac
# PORTME: fill in a description of your system's C++ link characteristics
case "$host_os" in
aix3*)
# FIXME: insert proper C++ library support
ld_shlibs=no
;;
aix4*)
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'
# -bexpall does not export symbols beginning with underscore (_)
always_export_symbols=yes
# Exported symbols can be pulled into shared objects from archives
whole_archive_flag_spec=' '
build_libtool_need_lc=yes
;;
chorus*)
case "$cc_basename" in
*)
# FIXME: insert proper C++ library support
ld_shlibs=no
;;
esac
;;
dgux*)
case "$cc_basename" in
ec++)
# FIXME: insert proper C++ library support
ld_shlibs=no
;;
ghcx)
# Green Hills C++ Compiler
# FIXME: insert proper C++ library support
ld_shlibs=no
;;
*)
# FIXME: insert proper C++ library support
ld_shlibs=no
;;
esac
;;
freebsd*)
# FreeBSD uses GNU C++ and GNU ld
# FIXME: insert proper C++ library support
ld_shlibs=no
;;
hpux*)
case "$cc_basename" in
CC)
# FIXME: insert proper C++ library support
ld_shlibs=no
;;
aCC)
case "$host_os" in
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 $lib' ;;
*) archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' ;;
esac
hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
hardcode_libdir_separator=:
hardcode_direct=yes
hardcode_minus_L=yes # Not in the search PATH, but as the default
# location of the library.
export_dynamic_flag_spec='${wl}-E'
# Commands to make compiler produce verbose output that lists
# what "hidden" libraries, object files and flags are used when
# linking a shared library.
#
# There doesn't appear to be a way to prevent this compiler from
# explicitly linking system object files so we need to strip them
# from the output so that they don't get included in the library
# dependencies.
output_verbose_link_cmds='templist=`($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 $list'
;;
*)
# FIXME: insert proper C++ library support
ld_shlibs=no
;;
esac
;;
irix5* | irix6*)
case "$cc_basename" in
CC)
# SGI C++
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 $lib'
# Archives containing C++ object files must be created using
# "CC -ar", where "CC" is the IRIX C++ compiler. This is
# necessary to make sure instantiated templates are included
# in the archive.
old_archive_cmds='$CC -ar -WR,-u -o $oldlib $oldobjs'
;;
*)
if test "$with_gcc" = yes; then
if test "$with_gnu_ld" = no; then
archive_cmds='$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 $lib'
else
archive_cmds='$LD -shared $predep_objects $libobjs $deplibs $postdep_objects $linker_flags -soname $soname `test -n "$verstring" && echo -set_version $verstring` -o $lib'
fi
fi
hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
hardcode_libdir_separator=:
link_all_deplibs=yes
;;
esac
;;
linux*)
case "$cc_basename" in
KCC)
# Kuck and Associates, Inc. (KAI) C++ Compiler
# KCC will only create a shared library if the output file
# ends with ".so" (or ".sl" for HP-UX), so rename the library
# to its proper name (with version) after linking.
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'
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 $lib'
# Commands to make compiler produce verbose output that lists
# what "hidden" libraries, object files and flags are used when
# linking a shared library.
#
# There doesn't appear to be a way to prevent this compiler from
# explicitly linking system object files so we need to strip them
# from the output so that they don't get included in the library
# dependencies.
output_verbose_link_cmds='templist=`$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 $list'
hardcode_libdir_flag_spec='${wl}--rpath,$libdir'
export_dynamic_flag_spec='${wl}--export-dynamic'
# Archives containing C++ object files must be created using
# "CC -Bstatic", where "CC" is the KAI C++ compiler.
old_archive_cmds='$CC -Bstatic -o $oldlib $oldobjs'
;;
cxx)
# Compaq C++
archive_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
archive_expsym_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib ${wl}-retain-symbols-file $wl$export_symbols'
runpath_var=LD_RUN_PATH
hardcode_libdir_flag_spec='-rpath $libdir'
hardcode_libdir_separator=:
# Commands to make compiler produce verbose output that lists
# what "hidden" libraries, object files and flags are used when
# linking a shared library.
#
# There doesn't appear to be a way to prevent this compiler from
# explicitly linking system object files so we need to strip them
# from the output so that they don't get included in the library
# dependencies.
output_verbose_link_cmds='templist=`$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 $list'
;;
esac
;;
lynxos*)
# FIXME: insert proper C++ library support
ld_shlibs=no
;;
m88k*)
# FIXME: insert proper C++ library support
ld_shlibs=no
;;
mvs*)
case "$cc_basename" in
cxx)
# FIXME: insert proper C++ library support
ld_shlibs=no
;;
*)
# FIXME: insert proper C++ library support
ld_shlibs=no
;;
esac
;;
netbsd*)
# NetBSD uses g++ - do we need to do anything?
;;
osf3*)
if test "$with_gcc" = yes && test "$with_gnu_ld" = no; then
allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
archive_cmds='$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 $lib'
hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
hardcode_libdir_separator=:
# Commands to make compiler produce verbose output that lists
# what "hidden" libraries, object files and flags are used when
# linking a shared library.
output_verbose_link_cmds='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | egrep "\-L"'
fi
case "$cc_basename" in
KCC)
# Kuck and Associates, Inc. (KAI) C++ Compiler
# KCC will only create a shared library if the output file
# ends with ".so" (or ".sl" for HP-UX), so rename the library
# to its proper name (with version) after linking.
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 $lib'
hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
hardcode_libdir_separator=:
# Archives containing C++ object files must be created using
# "CC -Bstatic", where "CC" is the KAI C++ compiler.
old_archive_cmds='$CC -Bstatic -o $oldlib $oldobjs'
;;
RCC)
# Rational C++ 2.4.1
# FIXME: insert proper C++ library support
ld_shlibs=no
;;
cxx)
allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
archive_cmds='$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 $lib'
hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
hardcode_libdir_separator=:
# Commands to make compiler produce verbose output that lists
# what "hidden" libraries, object files and flags are used when
# linking a shared library.
#
# There doesn't appear to be a way to prevent this compiler from
# explicitly linking system object files so we need to strip them
# from the output so that they don't get included in the library
# dependencies.
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 $list'
;;
*)
# FIXME: insert proper C++ library support
ld_shlibs=no
;;
esac
;;
osf4* | osf5*)
if test "$with_gcc" = yes && test "$with_gnu_ld" = no; then
allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
archive_cmds='$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 $lib'
hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
hardcode_libdir_separator=:
# Commands to make compiler produce verbose output that lists
# what "hidden" libraries, object files and flags are used when
# linking a shared library.
output_verbose_link_cmds='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | egrep "\-L"'
fi
case "$cc_basename" in
KCC)
# Kuck and Associates, Inc. (KAI) C++ Compiler
# KCC will only create a shared library if the output file
# ends with ".so" (or ".sl" for HP-UX), so rename the library
# to its proper name (with version) after linking.
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 $lib'
hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
hardcode_libdir_separator=:
# Archives containing C++ object files must be created using
# the KAI C++ compiler.
old_archive_cmds='$CC -o $oldlib $oldobjs'
;;
RCC)
# Rational C++ 2.4.1
# FIXME: insert proper C++ library support
ld_shlibs=no
;;
cxx)
allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
archive_cmds='$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 $lib'
hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
hardcode_libdir_separator=:
# Commands to make compiler produce verbose output that lists
# what "hidden" libraries, object files and flags are used when
# linking a shared library.
#
# There doesn't appear to be a way to prevent this compiler from
# explicitly linking system object files so we need to strip them
# from the output so that they don't get included in the library
# dependencies.
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 $list'
;;
*)
# FIXME: insert proper C++ library support
ld_shlibs=no
;;
esac
;;
psos*)
# FIXME: insert proper C++ library support
ld_shlibs=no
;;
sco*)
case "$cc_basename" in
CC)
# FIXME: insert proper C++ library support
ld_shlibs=no
;;
*)
# FIXME: insert proper C++ library support
ld_shlibs=no
;;
esac
;;
sunos4*)
case "$cc_basename" in
CC)
# Sun C++ 4.x
# FIXME: insert proper C++ library support
ld_shlibs=no
;;
lcc)
# Lucid
# FIXME: insert proper C++ library support
ld_shlibs=no
;;
*)
# FIXME: insert proper C++ library support
ld_shlibs=no
;;
esac
;;
solaris*)
case "$cc_basename" in
CC)
# Sun C++ 4.2, 5.x and Centerline C++
no_undefined_flag=' -ztext'
archive_cmds='$CC -G${allow_undefined_flag} -nolib -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
$CC -G${allow_undefined_flag} -nolib ${wl}-M ${wl}$lib.exp -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$rm $lib.exp'
hardcode_libdir_flag_spec='-R$libdir'
hardcode_shlibpath_var=no
case "$host_os" in
solaris2.[0-5] | solaris2.[0-5].*) ;;
*)
# The C++ compiler is used as linker so we must use $wl
# flag to pass the commands to the underlying system
# linker.
# Supported since Solaris 2.6 (maybe 2.5.1?)
whole_archive_flag_spec='${wl}-z ${wl}allextract$convenience ${wl}-z ${wl}defaultextract'
;;
esac
link_all_deplibs=yes
# Commands to make compiler produce verbose output that lists
# what "hidden" libraries, object files and flags are used when
# linking a shared library.
#
# There doesn't appear to be a way to prevent this compiler from
# explicitly linking system object files so we need to strip them
# from the output so that they don't get included in the library
# dependencies.
output_verbose_link_cmds='templist=`$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 $list'
# Archives containing C++ object files must be created using
# "CC -xar", where "CC" is the Sun C++ compiler. This is
# necessary to make sure instantiated templates are included
# in the archive.
old_archive_cmds='$CC -xar -o $oldlib $oldobjs'
;;
gcx)
# Green Hills C++ Compiler
archive_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'
# The C++ compiler must be used to create the archive.
old_archive_cmds='$CC $LDFLAGS -archive -o $oldlib $oldobjs'
;;
*)
# GNU C++ compiler with Solaris linker
if test "$with_gcc" = yes && test "$with_gnu_ld" = no; then
if $CC --version | egrep -v '^2\.7' > /dev/null; then
archive_cmds='$LD -shared -nostdlib $LDFLAGS $predep_objects $libobjs $deplibs $postdep_objects $linker_flags ${wl}-h $wl$soname -o $lib'
archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
$LD -shared -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags~$rm $lib.exp'
# Commands to make compiler produce verbose output that lists
# what "hidden" libraries, object files and flags are used when
# linking a shared library.
output_verbose_link_cmds="$CC -shared $CFLAGS -v conftest.$objext 2>&1 | egrep \"\-L\""
else
# g++ 2.7 appears to require `-G' NOT `-shared' on this
# platform.
archive_cmds='$LD -G -nostdlib $LDFLAGS $predep_objects $libobjs $deplibs $postdep_objects $linker_flags ${wl}-h $wl$soname -o $lib'
archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
$LD -G -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags~$rm $lib.exp'
# Commands to make compiler produce verbose output that lists
# what "hidden" libraries, object files and flags are used when
# linking a shared library.
output_verbose_link_cmds="$CC -G $CFLAGS -v conftest.$objext 2>&1 | egrep \"\-L\""
fi
hardcode_libdir_flag_spec='${wl}-R $wl$libdir'
fi
;;
esac
;;
tandem*)
case "$cc_basename" in
NCC)
# NonStop-UX NCC 3.20
# FIXME: insert proper C++ library support
ld_shlibs=no
;;
*)
# FIXME: insert proper C++ library support
ld_shlibs=no
;;
esac
;;
unixware*)
# FIXME: insert proper C++ library support
ld_shlibs=no
;;
vxworks*)
# FIXME: insert proper C++ library support
ld_shlibs=no
;;
*)
# FIXME: insert proper C++ library support
ld_shlibs=no
;;
esac
## Compiler Characteristics: PIC flags, static flags, etc
# We don't use cached values here since only the C compiler
# characteristics should be cached.
ac_cv_prog_cc_pic=
ac_cv_prog_cc_shlib=
ac_cv_prog_cc_wl=
ac_cv_prog_cc_static=
ac_cv_prog_cc_no_builtin=
ac_cv_prog_cc_can_build_shared=$can_build_shared
# It is not enough to reset these cached values, they must be unset.
unset ac_cv_prog_cc_pic_works
unset ac_cv_prog_cc_static_works
if test "$with_gcc" = yes; then
ac_cv_prog_cc_wl='-Wl,'
ac_cv_prog_cc_static='-static'
case "$host_os" in
beos* | irix5* | irix6* | osf3* | osf4* | osf5*)
# PIC is the default for these OSes.
;;
aix*)
# Below there is a dirty hack to force normal static linking with -ldl
# The problem is because libdl dynamically linked with both libc and
# libC (AIX C++ library), which obviously doesn't included in libraries
# list by gcc. This cause undefined symbols with -static flags.
# This hack allows C programs to be linked with "-static -ldl", but
# we not sure about C++ programs.
ac_cv_prog_cc_static="$ac_cv_prog_cc_static ${ac_cv_prog_cc_wl}-lC"
;;
cygwin* | mingw* | os2*)
# This hack is so that the source file can tell whether it is being
# built for inclusion in a dll (and should export symbols for example).
ac_cv_prog_cc_pic='-DDLL_EXPORT'
;;
amigaos*)
# FIXME: we need at least 68020 code to build shared libraries, but
# adding the `-m68020' flag to GCC prevents building anything better,
# like `-m68040'.
ac_cv_prog_cc_pic='-m68020 -resident32 -malways-restore-a4'
;;
sysv4*MP*)
if test -d /usr/nec; then
ac_cv_prog_cc_pic=-Kconform_pic
fi
;;
*)
ac_cv_prog_cc_pic='-fPIC'
;;
esac
else
case "$host_os" in
aix4*)
# All AIX code is PIC.
;;
chorus*)
case "$cc_basename" in
cxch68)
# Green Hills C++ Compiler
# 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 $MVME_DIR/lib/classix/libcx.s.a"
;;
esac
;;
dgux*)
case "$cc_basename" in
ec++)
ac_cv_prog_cc_pic='-KPIC'
;;
ghcx)
# Green Hills C++ Compiler
ac_cv_prog_cc_pic='-pic'
;;
*)
;;
esac
;;
freebsd*)
# FreeBSD uses GNU C++
;;
hpux9* | hpux10* | hpux11*)
case "$cc_basename" in
CC)
ac_cv_prog_cc_wl='-Wl,'
ac_cv_prog_cc_static="${ac_cv_prog_cc_wl}-a ${ac_cv_prog_cc_wl}archive"
ac_cv_prog_cc_pic='+Z'
;;
aCC)
ac_cv_prog_cc_wl='-Wl,'
ac_cv_prog_cc_static="${ac_cv_prog_cc_wl}-a ${ac_cv_prog_cc_wl}archive"
ac_cv_prog_cc_pic='+Z'
;;
*)
;;
esac
;;
irix5* | irix6*)
case "$cc_basename" in
CC)
ac_cv_prog_cc_wl='-Wl,'
ac_cv_prog_cc_static='-non_shared'
ac_cv_prog_cc_pic='-KPIC'
;;
*)
;;
esac
;;
linux*)
case "$cc_basename" in
KCC)
# KAI C++ Compiler
ac_cv_prog_cc_wl='--backend -Wl,'
ac_cv_prog_cc_pic='-fPIC'
;;
cxx)
# Compaq C++
# Make sure the PIC flag is empty. It appears that all Alpha
# Linux and Compaq Tru64 Unix objects are PIC.
ac_cv_prog_cc_pic=
ac_cv_prog_cc_static='-non_shared'
;;
*)
;;
esac
;;
lynxos*)
;;
m88k*)
;;
mvs*)
case "$cc_basename" in
cxx)
ac_cv_prog_cc_pic='-W c,exportall'
;;
*)
;;
esac
;;
netbsd*)
;;
osf3* | osf4* | osf5*)
case "$cc_basename" in
KCC)
ac_cv_prog_cc_wl='--backend -Wl,'
;;
RCC)
# Rational C++ 2.4.1
ac_cv_prog_cc_pic='-pic'
;;
cxx)
# Digital/Compaq C++
ac_cv_prog_cc_wl='-Wl,'
# Make sure the PIC flag is empty. It appears that all Alpha
# Linux and Compaq Tru64 Unix objects are PIC.
ac_cv_prog_cc_pic=
ac_cv_prog_cc_static='-non_shared'
;;
*)
;;
esac
;;
psos*)
;;
sco*)
case "$cc_basename" in
CC)
ac_cv_prog_cc_pic='-fPIC'
;;
*)
;;
esac
;;
solaris*)
case "$cc_basename" in
CC)
# Sun C++ 4.2, 5.x and Centerline C++
ac_cv_prog_cc_pic='-KPIC'
ac_cv_prog_cc_static='-Bstatic'
ac_cv_prog_cc_wl='-Qoption ld '
;;
gcx)
# Green Hills C++ Compiler
ac_cv_prog_cc_pic='-PIC'
;;
*)
;;
esac
;;
sunos4*)
case "$cc_basename" in
CC)
# Sun C++ 4.x
ac_cv_prog_cc_pic='-pic'
ac_cv_prog_cc_static='-Bstatic'
;;
lcc)
# Lucid
ac_cv_prog_cc_pic='-pic'
;;
*)
;;
esac
;;
tandem*)
case "$cc_basename" in
NCC)
# NonStop-UX NCC 3.20
ac_cv_prog_cc_pic='-KPIC'
;;
*)
;;
esac
;;
unixware*)
;;
vxworks*)
;;
*)
ac_cv_prog_cc_can_build_shared=no
;;
esac
fi
ac_cv_prog_cc_pic="$ac_cv_prog_cc_pic -DPIC"
# Figure out "hidden" C++ library dependencies from verbose
# compiler output whening linking a shared library.
cat > conftest.$ac_ext <<EOF
class Foo
{
public:
Foo (void) { a = 0; }
private:
int a;
};
EOF
if eval $ac_compile 2>&5; then
# Parse the compiler output and extract the necessary
# objects, libraries and library flags.
# Sentinel used to keep track of whether or not we are before
# the conftest object file.
pre_test_object_deps_done=no
for p in `eval $output_verbose_link_cmds`; do
case $p in
-L* | -R* | -l*)
# Some compilers place space between "-{L,R}" and the path.
# Remove the space.
if test $p = "-L" \
|| test $p = "-R"; then
prev=$p
continue
else
prev=
fi
if test "$pre_test_object_deps_done" = no; then
case $p in
-L* | -R*)
# Internal compiler library paths should come after those
# provided the user. The postdeps already come after the
# user supplied libs so there is no need to process them.
if test -z "$compiler_lib_search_path"; then
compiler_lib_search_path="${prev}${p}"
else
compiler_lib_search_path="${compiler_lib_search_path} ${prev}${p}"
fi
;;
# The "-l" case would never come before the object being
# linked, so don't bother handling this case.
esac
else
if test -z "$postdeps"; then
postdeps="${prev}${p}"
else
postdeps="${postdeps} ${prev}${p}"
fi
fi
;;
*.$objext)
# This assumes that the test object file only shows up
# once in the compiler output.
if test "$p" = "conftest.$objext"; then
pre_test_object_deps_done=yes
continue
fi
if test "$pre_test_object_deps_done" = no; then
if test -z "$predep_objects"; then
predep_objects="$p"
else
predep_objects="$predep_objects $p"
fi
else
if test -z "$postdep_objects"; then
postdep_objects="$p"
else
postdep_objects="$postdep_objects $p"
fi
fi
;;
*) ;; # Ignore the rest.
esac
done
# Clean up.
rm -f a.out
else
echo "ltcf-cxx.sh: error: problem compiling test program"
fi
$rm -f confest.$objext
case " $postdeps " in
*" -lc "*) need_lc=no ;;
*) need_lc=yes ;;
esac
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