#### This script is meant to be sourced by ltconfig. # $Id: ltcf-cxx.sh,v 1.1 2004-03-04 16:49:13 merck Exp $ # ltcf-cxx.sh - Create a C++ compiler specific configuration # # Copyright (C) 1996-1999,2000 Free Software Foundation, Inc. # Originally by Gordon Matzigkeit , 1996 # # Original C++ support by: # Alexandre Oliva # Ossama Othman # Thomas Thanner # # 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 (or CXX) to be a program name with arguments. set dummy $CC compiler=$2 cc_basename=`$echo X"$compiler" | $Xsed -e 's%^.*/%%'` # we are optimistic. (Too optimistic if you ask me, down there we switch it # off again for most platforms ;) (MM) ld_shlibs=yes # Check if we are using GNU gcc (taken/adapted from configure script) # We need to check here since "--with-gcc" is set at configure time, # not ltconfig time! cat > conftest.$ac_ext <&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 $lib' runpath_var=LD_RUN_PATH hardcode_libdir_flag_spec='${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 echo "ltcf-cxx: with_gcc=$with_gcc ; with_gnu_ld=$with_gnu_ld" # In general, the C++ compiler should always link C++ objects. LD="$CC" LDFLAGS="$LDFLAGS" # PORTME: fill in a description of your system's C++ link characteristics case "$host_os" in aix3*) # FIXME: insert proper C++ library support ld_shlibs=no ;; aix4*) case "$cc_basename" in xlC) # IBM C++ compiler (xlC). Anything older than Visual Age C++ 5.0 probably won't work. archive_cmds='$CC -qmkshrobj $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-G -o $lib' archive_expsym_cmds='$CC -qmkshrobj $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-G ${wl}-bE:$export_symbols -o $lib' ;; *) if test "$with_gcc" = yes; then # GNU C++ compiler archive_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-G -o $lib' archive_expsym_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-G ${wl}-bE:$export_symbols -o $lib' fi ;; esac hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:/usr/lib:/lib' hardcode_libdir_separator=':' hardcode_direct=unsupported link_all_deplibs=yes ;; chorus*) case "$cc_basename" in *) # FIXME: insert proper C++ library support ld_shlibs=no ;; esac ;; dgux*) case "$cc_basename" in ec++) # FIXME: insert proper C++ library support ld_shlibs=no ;; ghcx) # Green Hills C++ Compiler # FIXME: insert proper C++ library support ld_shlibs=no ;; *) # FIXME: insert proper C++ library support ld_shlibs=no ;; esac ;; freebsd*) # FreeBSD uses GNU C++ and GNU ld skip_need_lc_check=yes remove_lgcc=yes ;; hpux*) case "$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 $list' ;; *) if test "$with_gcc" = yes && test "$with_gnu_ld" = no ; then # MM: for HP-UX and g++ -fPIC is needed to link pic objects together archive_cmds='$CC -shared -fPIC ${wl}+h ${wl}$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib' hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir' hardcode_libdir_separator=: hardcode_direct=yes hardcode_minus_L=yes export_dynamic_flag_spec='${wl}-E' output_verbose_link_cmds='$CC -shared -fPIC $CFLAGS -v conftest.$objext 2>&1 | egrep "\-L"' remove_lgcc=yes fi if test "$with_gcc" = no ; then # FIXME: insert proper C++ library support ld_shlibs=no fi ;; esac ;; irix5* | irix6*) case "$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 -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 $lib' else archive_cmds='$LD -shared $predep_objects $libobjs $deplibs $postdep_objects $linker_flags -soname $soname `test -n "$verstring" && echo -set_version $verstring` -o $lib' fi fi ;; esac hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir' hardcode_libdir_separator=: link_all_deplibs=yes ;; 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 $list' ;; insure) if test "$with_gcc" = yes; then # Insure++ together with gcc probably means also GNU ld # only -whole-archive isn't supported whole_archive_flag_spec="" # and we can't use -nostdlib, because bloody insure has no way to # output the linkline (-Zvm isn't working as documented), so we don't # know the depending libs. So we hope, insure gets it right anyway. archive_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib' runpath_var=LD_RUN_PATH hardcode_libdir_flag_spec='${wl}--rpath ${wl}$libdir' export_dynamic_flag_spec='${wl}--export-dynamic' output_verbose_link_cmds="" fi esac ;; lynxos*) # FIXME: insert proper C++ library support ld_shlibs=no ;; m88k*) # FIXME: insert proper C++ library support ld_shlibs=no ;; mvs*) case "$cc_basename" in cxx) # FIXME: insert proper C++ library support ld_shlibs=no ;; *) # FIXME: insert proper C++ library support ld_shlibs=no ;; esac ;; netbsd*) if test "$with_gcc" = no || test "$with_gnu_ld" = no; then # This should only be triggered for NetBSD/a.out # Add in C++ constructor/destructor support if test -f /usr/pkg/lib/c++rt0/c++rt0.o.PIC; then cppopts="/usr/pkg/lib/c++rt0/c++rt0.o.PIC" elif test -f /usr/lib/c++rt0.o; then cppopts="/usr/lib/c++rt0.o" fi archive_cmds='ld -Bshareable -o $lib '"$cppopts"' $libobjs $deplibs $linkopts' fi ;; openbsd*) if test "$with_gcc" = yes && test "$with_gnu_ld" = no; then # MM: OpenBSD 2.7 uses G++, but not GNU ld archive_cmds='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib' archive_expsym_cmds='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib' old_archive_cmds="$old_archive_cmds~"'$RANLIB $oldlib' hardcode_libdir_flag_spec='${wl}-R$libdir' hardcode_direct=yes hardcode_shlibpath_var=no whole_archive_flag_spec='${wl}-Bforcearchive' remove_lgcc=yes fi ;; 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"' else 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 $list' ;; *) # FIXME: insert proper C++ library support ld_shlibs=no ;; esac fi ;; osf4* | osf5*) if test "$with_gcc" = yes && test "$with_gnu_ld" = no; then allow_undefined_flag=' -Wl,-expect_unresolved -Wl,\*' no_undefined_flag=' -Wl,-expect_unresolved -Wl,\*' archive_cmds='$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"' else 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 $oldobjs' ;; RCC) # Rational C++ 2.4.1 # FIXME: insert proper C++ library support ld_shlibs=no ;; cxx) allow_undefined_flag=' -Wl,-expect_unresolved -Wl,\*' no_undefined_flag=' -Wl,-expect_unresolved -Wl,\*' archive_cmds='$CC -shared${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-msym ${wl}-soname ${wl}$soname `test -n "$verstring" && echo ${wl}-set_version ${wl}$verstring` -update_registry ${objdir}/so_locations -o $lib' 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" | 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 $list' ;; *) # FIXME: insert proper C++ library support ld_shlibs=no ;; esac fi ;; psos*) # FIXME: insert proper C++ library support ld_shlibs=no ;; sco*) case "$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 ${wl}-h $wl$soname~$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 ${wl}-h $wl$soname~$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 <&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 add="${prev}${p}" if test "x$remove_lgcc" = "xyes" ; then case "$add" in -lgcc ) add="" ;; esac fi if test -n "$add" ; then if test -z "$postdeps"; then postdeps="$add" else postdeps="${postdeps} ${add}" fi fi fi ;; *.$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 if test "x$skip_need_lc_check" = "xyes" ; then need_lc=no else case " $postdeps " in *" -lc "*) need_lc=no ;; *) need_lc=yes ;; esac fi