ltcf-gcj.sh

bookcase,by shell script and c++ and perl

#### This script is meant to be sourced by ltconfig.

# ltcf-gcj.sh - Create a GCJ compiler specific configuration
#
# Copyright (C) 1996-1999, 2000, 2001 Free Software Foundation, Inc.
# Originally by Gordon Matzigkeit <[e-mail]>, 1996
#
# Original GCJ support by:
#    Alexandre Oliva <[e-mail]>
#
# 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 Java test sources.
ac_ext=java

# Object file extension for compiled Java test sources.
objext=o

# Code to be used in simple compile tests
lt_simple_compile_test_code="class foo {}"

# Code to be used in simple link tests
lt_simple_link_test_code='public class conftest { public static void main(String[] argv) {}; }'

## Linker Characteristics
case $host_os in
cygwin* | mingw*)
  # FIXME: the MSVC++ port hasn't been tested in a loooong time
  # When not using gcc, we currently assume that we are using
  # Microsoft Visual C++.
  if test "$with_gcc" != yes; then
    with_gnu_ld=no
  fi
  ;;

esac

ld_shlibs=yes
if test "$with_gnu_ld" = yes; then
  # If archive_cmds runs LD, not CC, wlarc should be empty
  wlarc='${wl}'

  # See if GNU ld supports shared libraries.
  case $host_os in
  aix3* | aix4*)
    # On AIX, the GNU linker is very broken
    ld_shlibs=no
    cat <<EOF 1>&2

*** Warning: the GNU linker, at least up to release 2.9.1, is reported
*** to be unable to reliably create shared libraries on AIX.
*** Therefore, libtool is disabling shared libraries support.  If you
*** really care for shared libraries, you may want to modify your PATH
*** so that a non-GNU linker is found, and then restart.

EOF
    ;;

  amigaos*)
    archive_cmds='$rm $output_objdir/a2ixlibrary.data~$echo "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$echo "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$echo "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$echo "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
    hardcode_libdir_flag_spec='-L$libdir'
    hardcode_minus_L=yes

    # Samuel A. Falvo II <[e-mail]> reports
    # that the semantics of dynamic libraries on AmigaOS, at least up
    # to version 4, is to share data among multiple programs linked
    # with the same dynamic library.  Since this doesn't match the
    # behavior of shared libraries on other platforms, we can use
    # them.
    ld_shlibs=no
    ;;

  beos*)
    if $LD --help 2>&1 | egrep ': supported targets:.* elf' > /dev/null; then
      allow_undefined_flag=unsupported
      # Joseph Beckenbach <[e-mail]> says some releases of gcc
      # support --undefined.  This deserves some investigation.  FIXME
      archive_cmds='$CC -nostart $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
    else
      ld_shlibs=no
    fi
    ;;

  cygwin* | mingw*)
    # hardcode_libdir_flag_spec is actually meaningless, as there is
    # no search path for DLLs.
    hardcode_libdir_flag_spec='-L$libdir'
    allow_undefined_flag=unsupported
    always_export_symbols=yes

    extract_expsyms_cmds='test -f $output_objdir/impgen.c || \
      sed -e "/^# \/\* impgen\.c starts here \*\//,/^# \/\* impgen.c ends here \*\// { s/^# //; p; }" -e d < $0 > $output_objdir/impgen.c~
      test -f $output_objdir/impgen.exe || (cd $output_objdir && \
      if test "x$HOST_CC" != "x" ; then $HOST_CC -o impgen impgen.c ; \
      else $CC -o impgen impgen.c ; fi)~
      $output_objdir/impgen $dir/$soroot > $output_objdir/$soname-def'

    old_archive_from_expsyms_cmds='$DLLTOOL --as=$AS --dllname $soname --def $output_objdir/$soname-def --output-lib $output_objdir/$newlib'

    # cygwin and mingw dlls have different entry points and sets of symbols
    # to exclude.
    # FIXME: what about values for MSVC?
    dll_entry=__cygwin_dll_entry@12
    dll_exclude_symbols=DllMain@12,_cygwin_dll_entry@12,_cygwin_noncygwin_dll_entry@12~
    case $host_os in
    mingw*)
      # mingw values
      dll_entry=_DllMainCRTStartup@12
      dll_exclude_symbols=DllMain@12,DllMainCRTStartup@12,DllEntryPoint@12~
      ;;
    esac

    # mingw and cygwin differ, and it's simplest to just exclude the union
    # of the two symbol sets.
    dll_exclude_symbols=DllMain@12,_cygwin_dll_entry@12,_cygwin_noncygwin_dll_entry@12,DllMainCRTStartup@12,DllEntryPoint@12

    # recent cygwin and mingw systems supply a stub DllMain which the user
    # can override, but on older systems we have to supply one (in ltdll.c)
    if test "x$lt_cv_need_dllmain" = "xyes"; then
      ltdll_obj='$output_objdir/$soname-ltdll.'"$objext "
      ltdll_cmds='test -f $output_objdir/$soname-ltdll.c || sed -e "/^# \/\* ltdll\.c starts here \*\//,/^# \/\* ltdll.c ends here \*\// { s/^# //; p; }" -e d < $0 > $output_objdir/$soname-ltdll.c~
	test -f $output_objdir/$soname-ltdll.$objext || (cd $output_objdir && $CC -c $soname-ltdll.c)~'
    else
      ltdll_obj=
      ltdll_cmds=
    fi

    # Extract the symbol export list from an `--export-all' def file,
    # then regenerate the def file from the symbol export list, so that
    # the compiled dll only exports the symbol export list.
    # Be careful not to strip the DATA tag left be newer dlltools.
    export_symbols_cmds="$ltdll_cmds"'
      $DLLTOOL --export-all --exclude-symbols '$dll_exclude_symbols' --output-def $output_objdir/$soname-def '$ltdll_obj'$libobjs $convenience~
      sed -e "1,/EXPORTS/d" -e "s/ @ [0-9]*//" -e "s/ *;.*$//" < $output_objdir/$soname-def > $export_symbols'

    # If the export-symbols file already is a .def file (1st line
    # is EXPORTS), use it as is.
    # If DATA tags from a recent dlltool are present, honour them!
    archive_expsym_cmds='if test "x`head -1 $export_symbols`" = xEXPORTS; then
        cp $export_symbols $output_objdir/$soname-def;
      else
        echo EXPORTS > $output_objdir/$soname-def;
        _lt_hint=1;
        cat $export_symbols | while read symbol; do
         set dummy \$symbol;
         case \[$]# in
           2) echo "   \[$]2 @ \$_lt_hint ; " >> $output_objdir/$soname-def;;
           *) echo "     \[$]2 @ \$_lt_hint \[$]3 ; " >> $output_objdir/$soname-def;;
         esac;
         _lt_hint=`expr 1 + \$_lt_hint`;
        done;
      fi~
      '"$ltdll_cmds"'
      $CC -Wl,--base-file,$output_objdir/$soname-base '$lt_cv_cc_dll_switch' -Wl,-e,'$dll_entry' -o $output_objdir/$soname '$ltdll_obj'$libobjs $deplibs $compiler_flags~
      $DLLTOOL --as=$AS --dllname $soname --exclude-symbols '$dll_exclude_symbols' --def $output_objdir/$soname-def --base-file $output_objdir/$soname-base --output-exp $output_objdir/$soname-exp~
      $CC -Wl,--base-file,$output_objdir/$soname-base $output_objdir/$soname-exp '$lt_cv_cc_dll_switch' -Wl,-e,'$dll_entry' -o $output_objdir/$soname '$ltdll_obj'$libobjs $deplibs $compiler_flags~
      $DLLTOOL --as=$AS --dllname $soname --exclude-symbols '$dll_exclude_symbols' --def $output_objdir/$soname-def --base-file $output_objdir/$soname-base --output-exp $output_objdir/$soname-exp --output-lib $output_objdir/$libname.dll.a~
      $CC $output_objdir/$soname-exp '$lt_cv_cc_dll_switch' -Wl,-e,'$dll_entry' -o $output_objdir/$soname '$ltdll_obj'$libobjs $deplibs $compiler_flags'
    ;;

  netbsd*)
    if echo __ELF__ | $CC -E - | grep __ELF__ >/dev/null; then
      archive_cmds='$LD -Bshareable $libobjs $deplibs $linker_flags -o $lib'
      wlarc=
    else
      archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
      archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
    fi
    ;;

  solaris* | sysv5*)
    if $LD -v 2>&1 | egrep 'BFD 2\.8' > /dev/null; then
      ld_shlibs=no
      cat <<EOF 1>&2

*** Warning: The releases 2.8.* of the GNU linker cannot reliably
*** create shared libraries on Solaris systems.  Therefore, libtool
*** is disabling shared libraries support.  We urge you to upgrade GNU
*** binutils to release 2.9.1 or newer.  Another option is to modify
*** your PATH or compiler configuration so that the native linker is
*** used, and then restart.

EOF
    elif $LD --help 2>&1 | egrep ': supported targets:.* elf' > /dev/null; then
      archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
      archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
    else
      ld_shlibs=no
    fi
    ;;

  sunos4*)
    archive_cmds='$LD -assert pure-text -Bshareable -o $lib $libobjs $deplibs $linker_flags'
    wlarc=
    hardcode_direct=yes
    hardcode_shlibpath_var=no
    ;;

  *)
    if $LD --help 2>&1 | egrep ': supported targets:.* elf' > /dev/null; then
      archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
      archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
    else
      ld_shlibs=no
    fi
    ;;
  esac

  if test "$ld_shlibs" = yes; then
    runpath_var=LD_RUN_PATH
    hardcode_libdir_flag_spec='${wl}--rpath ${wl}$libdir'
    export_dynamic_flag_spec='${wl}--export-dynamic'
    case $host_os in
    cygwin* | mingw*)
      # dlltool doesn't understand --whole-archive et. al.
      whole_archive_flag_spec=
      ;;
    *)
      # ancient GNU ld didn't support --whole-archive et. al.
      if $LD --help 2>&1 | egrep 'no-whole-archive' > /dev/null; then
	whole_archive_flag_spec="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
      else
	whole_archive_flag_spec=
      fi
      ;;
    esac
  fi
else
  # PORTME fill in a description of your system's linker (not GNU ld)
  case $host_os in
  aix3*)
    allow_undefined_flag=unsupported
    always_export_symbols=yes
    archive_expsym_cmds='$LD -o $output_objdir/$soname $libobjs $deplibs $linker_flags -bE:$export_symbols -T512 -H512 -bM:SRE~$AR $AR_FLAGS $lib $output_objdir/$soname'
    # Note: this linker hardcodes the directories in LIBPATH if there
    # are no directories specified by -L.
    hardcode_minus_L=yes
    if test "$with_gcc" = yes && test -z "$link_static_flag"; then
      # Neither direct hardcoding nor static linking is supported with a
      # broken collect2.
      hardcode_direct=unsupported
    fi
    ;;

  aix4* | aix5*)
    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'