# ltcf-cxx.sh - Create a C++ compiler specific configuration
#
-# Copyright (C) 1996-1999,2000 Free Software Foundation, Inc.
+# Copyright (C) 1996-1999, 2000, 2001 Free Software Foundation, Inc.
# Originally by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996
#
# Original C++ support by:Gary V. Vaughan <gvv@techie.com>
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
+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 (_)
+ aix4* | aix5*)
+ archive_cmds=''
+ hardcode_direct=yes
+ hardcode_libdir_separator=':'
+ link_all_deplibs=yes
+ # When large executables or shared objects are built, AIX ld can
+ # have problems creating the table of contents. If linking a library
+ # or program results in "error TOC overflow" add -mminimal-toc to
+ # CXXFLAGS/CFLAGS for g++/gcc. In the cases where that is not
+ # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
+ if test "$with_gcc" = yes; then
+ case $host_os in aix4.[012]|aix4.[012].*)
+ # We only want to do this on AIX 4.2 and lower, the check
+ # below for broken collect2 doesn't work under 4.3+
+ collect2name=`${CC} -print-prog-name=collect2`
+ if test -f "$collect2name" && \
+ strings "$collect2name" | grep resolve_lib_name >/dev/null
+ then
+ # We have reworked collect2
+ hardcode_direct=yes
+ else
+ # We have old collect2
+ hardcode_direct=unsupported
+ # It fails to find uninstalled libraries when the uninstalled
+ # path is not listed in the libpath. Setting hardcode_minus_L
+ # to unsupported forces relinking
+ hardcode_minus_L=yes
+ hardcode_libdir_flag_spec='-L$libdir'
+ hardcode_libdir_separator=
+ fi
+ esac
+ shared_flag='-shared'
+ else
+ # not using gcc
+ if test "$host_cpu" = ia64; then
+ shared_flag='${wl}-G'
+ else
+ shared_flag='${wl}-bM:SRE'
+ fi
+ fi
+
+ if test "$host_cpu" = ia64; then
+ # On IA64, the linker does run time linking by default, so we don't
+ # have to do anything special.
+ aix_use_runtimelinking=no
+ exp_sym_flag='-Bexport'
+ no_entry_flag=""
+ else
+ # Test if we are trying to use run time linking, or normal AIX style linking.
+ # If -brtl is somewhere in LDFLAGS, we need to do run time linking.
+ aix_use_runtimelinking=no
+ for ld_flag in $LDFLAGS; do
+ if (test $ld_flag = "-brtl" || test $ld_flag = "-Wl,-brtl" ); then
+ aix_use_runtimelinking=yes
+ break
+ fi
+ done
+ exp_sym_flag='-bexport'
+ no_entry_flag='-bnoentry'
+ fi
+ # It seems that -bexpall does not export symbols beginning with
+ # underscore (_), so it is better to generate a list of symbols to export.
always_export_symbols=yes
- # Exported symbols can be pulled into shared objects from archives
- whole_archive_flag_spec=' '
- build_libtool_need_lc=yes
+ if test "$aix_use_runtimelinking" = yes; then
+ hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:/usr/lib:/lib'
+ allow_undefined_flag=' -Wl,-G'
+ archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${allow_undefined_flag} '"\${wl}$no_entry_flag \${wl}-brtl \${wl}$exp_sym_flag:\$export_symbols"
+ else
+ if test "$host_cpu" = ia64; then
+ hardcode_libdir_flag_spec='${wl}-R $libdir:/usr/lib:/lib'
+ allow_undefined_flag="-z nodefs"
+ archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${wl}${allow_undefined_flag} '"\${wl}$no_entry_flag \${wl}$exp_sym_flag:\$export_symbols"
+ else
+ hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:/usr/lib:/lib'
+ # Warning - without using the other run time loading flags, -berok will
+ # link without error, but may produce a broken library.
+ no_undefined_flag='${wl}-bnoerok'
+ allow_undefined_flag='${wl}-berok"
+ # -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
+ # This is similar to how AIX traditionally builds it's shared libraries.
+ 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'
+ fi
+ fi
;;
chorus*)
- case "$cc_basename" in
+ case $cc_basename in
*)
# FIXME: insert proper C++ library support
ld_shlibs=no
;;
- esac
+ esac
;;
dgux*)
- case "$cc_basename" in
+ case $cc_basename in
ec++)
# FIXME: insert proper C++ library support
ld_shlibs=no
;;
esac
;;
- freebsd*)
- # FreeBSD uses GNU C++ and GNU ld
- # FIXME: insert proper C++ library support
+ freebsd[12]*)
+ # C++ shared libraries reported to be fairly broken before switch to ELF
ld_shlibs=no
;;
+ freebsd*)
+ # FreeBSD 3 and later use GNU C++ and GNU ld with standard ELF
+ # conventions
+ ld_shlibs=yes
+ ;;
hpux*)
- case "$cc_basename" in
+ if test $with_gnu_ld = no; then
+ hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
+ hardcode_libdir_separator=:
+ export_dynamic_flag_spec='${wl}-E'
+ fi
+ hardcode_direct=yes
+ hardcode_minus_L=yes # Not in the search PATH, but as the default
+ # location of the library.
+
+ case $cc_basename in
CC)
# FIXME: insert proper C++ library support
ld_shlibs=no
;;
aCC)
- case "$host_os" in
+ 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='${wl}-E'
-
# Commands to make compiler produce verbose output that lists
# what "hidden" libraries, object files and flags are used when
# linking a shared library.
output_verbose_link_cmds='templist=`($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
+ if test $with_gcc = yes; then
+ if test $with_gnu_ld = no; then
+ case "$host_os" in
+ hpux9*) archive_cmds='$rm $output_objdir/$soname~$CC -shared -fPIC ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib' ;;
+ *) archive_cmds='$CC -shared -fPIC ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' ;;
+ esac
+ fi
+ else
+ # FIXME: insert proper C++ library support
+ ld_shlibs=no
+ fi
;;
esac
;;
irix5* | irix6*)
- case "$cc_basename" in
+ 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 $lib'
if test "$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 $lib'
+ archive_cmds='$CC -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'
esac
;;
linux*)
- case "$cc_basename" in
+ case $cc_basename in
KCC)
# Kuck and Associates, Inc. (KAI) C++ Compiler
ld_shlibs=no
;;
mvs*)
- case "$cc_basename" in
+ case $cc_basename in
cxx)
# FIXME: insert proper C++ library support
ld_shlibs=no
# FIXME: insert proper C++ library support
ld_shlibs=no
;;
- esac
+ esac
;;
netbsd*)
# NetBSD uses g++ - do we need to do anything?
output_verbose_link_cmds='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | egrep "\-L"'
fi
- case "$cc_basename" in
+ case $cc_basename in
KCC)
# Kuck and Associates, Inc. (KAI) C++ Compiler
output_verbose_link_cmds='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | egrep "\-L"'
fi
- case "$cc_basename" in
+ case $cc_basename in
KCC)
# Kuck and Associates, Inc. (KAI) C++ Compiler
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'
+ allow_undefined_flag=' -expect_unresolved \*'
+ archive_cmds='$CC -shared${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${objdir}/so_locations -o $lib'
+ archive_expsym_cmds='for i in `cat $export_symbols`; do printf "-exported_symbol " >> $lib.exp; echo "\$i" >> $lib.exp; done~
+ echo "-hidden">> $lib.exp~
+ $CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname -Wl,-input -Wl,$lib.exp `test -n "$verstring" && echo -set_version $verstring` -update_registry $objdir/so_locations -o $lib~
+ $rm $lib.exp'
+
+ hardcode_libdir_flag_spec='-rpath $libdir'
hardcode_libdir_separator=:
# Commands to make compiler produce verbose output that lists
ld_shlibs=no
;;
sco*)
- case "$cc_basename" in
+ case $cc_basename in
CC)
# FIXME: insert proper C++ library support
ld_shlibs=no
esac
;;
sunos4*)
- case "$cc_basename" in
+ case $cc_basename in
CC)
# Sun C++ 4.x
# FIXME: insert proper C++ library support
esac
;;
solaris*)
- case "$cc_basename" in
+ case $cc_basename in
CC)
# Sun C++ 4.2, 5.x and Centerline C++
- no_undefined_flag=' -ztext'
+ no_undefined_flag=' -zdefs'
archive_cmds='$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
+ case $host_os in
solaris2.[0-5] | solaris2.[0-5].*) ;;
*)
# The C++ compiler is used as linker so we must use $wl
*)
# GNU C++ compiler with Solaris linker
if test "$with_gcc" = yes && test "$with_gnu_ld" = no; then
+ no_undefined_flag=' ${wl}-z ${wl}defs'
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 $lib'
+ archive_cmds='$CC -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'
+ $CC -shared -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags~$rm $lib.exp'
# Commands to make compiler produce verbose output that lists
# what "hidden" libraries, object files and flags are used when
else
# g++ 2.7 appears to require `-G' NOT `-shared' on this
# platform.
- archive_cmds='$LD -G -nostdlib $LDFLAGS $predep_objects $libobjs $deplibs $postdep_objects $linker_flags ${wl}-h $wl$soname -o $lib'
+ archive_cmds='$CC -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'
+ $CC -G -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags~$rm $lib.exp'
# Commands to make compiler produce verbose output that lists
# what "hidden" libraries, object files and flags are used when
hardcode_libdir_flag_spec='${wl}-R $wl$libdir'
fi
;;
- esac
+ esac
;;
tandem*)
- case "$cc_basename" in
+ case $cc_basename in
NCC)
# NonStop-UX NCC 3.20
# FIXME: insert proper C++ library support
# FIXME: insert proper C++ library support
ld_shlibs=no
;;
- esac
+ esac
;;
unixware*)
# FIXME: insert proper C++ library support
ac_cv_prog_cc_no_builtin=
ac_cv_prog_cc_can_build_shared=$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
+ac_cv_prog_cc_pic_works=
+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
+ case $host_os in
+ aix*)
+ # All AIX code is PIC.
+ if test "$host_cpu" = ia64; then
+ # AIX 5 now supports IA64 processor
+ lt_cv_prog_cc_static='-Bstatic'
+ else
+ lt_cv_prog_cc_static='-bnso -bI:/lib/syscalls.exp'
+ fi
+ ;;
+ 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'
+ ;;
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 ${ac_cv_prog_cc_wl}-lC"
- ;;
cygwin* | mingw* | os2*)
# This hack is so that the source file can tell whether it is being
# built for inclusion in a dll (and should export symbols for example).
ac_cv_prog_cc_pic='-DDLL_EXPORT'
;;
- amigaos*)
- # FIXME: we need at least 68020 code to build shared libraries, but
- # adding the `-m68020' flag to GCC prevents building anything better,
- # like `-m68040'.
- ac_cv_prog_cc_pic='-m68020 -resident32 -malways-restore-a4'
+ darwin* | rhapsody*)
+ # PIC is the default on this platform
+ # Common symbols not allowed in MH_DYLIB files
+ lt_cv_prog_cc_pic='-fno-common'
+ ;;
+ *djgpp*)
+ # DJGPP does not support shared libraries at all
+ ac_cv_prog_cc_pic=
;;
sysv4*MP*)
if test -d /usr/nec; then
;;
esac
else
- case "$host_os" in
- aix4*)
+ case $host_os in
+ aix4* | aix5*)
# All AIX code is PIC.
+ if test "$host_cpu" = ia64; then
+ # AIX 5 now supports IA64 processor
+ lt_cv_prog_cc_static='-Bstatic'
+ else
+ lt_cv_prog_cc_static='-bnso -bI:/lib/syscalls.exp'
+ fi
;;
chorus*)
- case "$cc_basename" in
+ 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 $MVME_DIR/lib/classix/libcx.s.a"
;;
- esac
+ esac
;;
dgux*)
- case "$cc_basename" in
+ case $cc_basename in
ec++)
ac_cv_prog_cc_pic='-KPIC'
;;
# FreeBSD uses GNU C++
;;
hpux9* | hpux10* | hpux11*)
- case "$cc_basename" in
+ case $cc_basename in
CC)
ac_cv_prog_cc_wl='-Wl,'
ac_cv_prog_cc_static="${ac_cv_prog_cc_wl}-a ${ac_cv_prog_cc_wl}archive"
esac
;;
irix5* | irix6*)
- case "$cc_basename" in
+ case $cc_basename in
CC)
ac_cv_prog_cc_wl='-Wl,'
ac_cv_prog_cc_static='-non_shared'
esac
;;
linux*)
- case "$cc_basename" in
+ case $cc_basename in
KCC)
# KAI C++ Compiler
ac_cv_prog_cc_wl='--backend -Wl,'
m88k*)
;;
mvs*)
- case "$cc_basename" in
+ case $cc_basename in
cxx)
ac_cv_prog_cc_pic='-W c,exportall'
;;
*)
;;
- esac
+ esac
;;
netbsd*)
;;
osf3* | osf4* | osf5*)
- case "$cc_basename" in
+ case $cc_basename in
KCC)
ac_cv_prog_cc_wl='--backend -Wl,'
;;
psos*)
;;
sco*)
- case "$cc_basename" in
+ case $cc_basename in
CC)
ac_cv_prog_cc_pic='-fPIC'
;;
esac
;;
solaris*)
- case "$cc_basename" in
+ case $cc_basename in
CC)
# Sun C++ 4.2, 5.x and Centerline C++
ac_cv_prog_cc_pic='-KPIC'
;;
*)
;;
- esac
+ esac
;;
sunos4*)
- case "$cc_basename" in
+ case $cc_basename in
CC)
# Sun C++ 4.x
ac_cv_prog_cc_pic='-pic'
esac
;;
tandem*)
- case "$cc_basename" in
+ case $cc_basename in
NCC)
# NonStop-UX NCC 3.20
ac_cv_prog_cc_pic='-KPIC'
;;
*)
;;
- esac
+ esac
;;
unixware*)
;;
;;
esac
fi
-ac_cv_prog_cc_pic="$ac_cv_prog_cc_pic -DPIC"
+
+case "$host_os" in
+ # Platforms which do not suport PIC and -DPIC is meaningless
+ # on them:
+ *djgpp*)
+ ac_cv_prog_cc_pic=
+ ;;
+ *)
+ ac_cv_prog_cc_pic="$ac_cv_prog_cc_pic -DPIC"
+ ;;
+esac
# Figure out "hidden" C++ library dependencies from verbose
EOF
-if eval $ac_compile 2>&5; then
+if (eval $ac_compile) 2>&5; then
# Parse the compiler output and extract the necessary
# objects, libraries and library flags.