ltcf-gcj.sh

   1 #### This script is meant to be sourced by ltconfig.
   2
   3 # $Id: ltcf-gcj.sh,v 1.1.2.5 2000/07/20 02:29:15 oliva Exp $
   4
   5 # ltcf-gcj.sh - Create a GCJ compiler specific configuration
   6 #
   7 # Copyright (C) 1996-1999,2000 Free Software Foundation, Inc.
   8 # Originally by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996
   9 #
  10 # Original GCJ support by:
  11 #    Alexandre Oliva <oliva@lsd.ic.unicamp.br>
  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 Java test sources.
  34 ac_ext=java
  35
  36 # Object file extension for compiled Java test sources.
  37 objext=o
  38
  39 # Code to be used in simple compile tests
  40 lt_simple_compile_test_code="class foo {}"
  41
  42 # Code to be used in simple link tests
  43 lt_simple_link_test_code='public class conftest { public static void main(String[] argv) {} (0); }'
  44
  45 ## Linker Characteristics
  46 case "$host_os" in
  47 cygwin* | mingw*)
  48   # FIXME: the MSVC++ port hasn't been tested in a loooong time
  49   # When not using gcc, we currently assume that we are using
  50   # Microsoft Visual C++.
  51   if test "$with_gcc" != yes; then
  52     with_gnu_ld=no
  53   fi
  54   ;;
  55
  56 esac
  57
  58 ld_shlibs=yes
  59 if test "$with_gnu_ld" = yes; then
  60   # If archive_cmds runs LD, not CC, wlarc should be empty
  61   wlarc='${wl}'
  62
  63   # See if GNU ld supports shared libraries.
  64   case "$host_os" in
  65   aix3* | aix4*)
  66     # On AIX, the GNU linker is very broken
  67     ld_shlibs=no
  68     cat <<EOF 1>&2
  69
  70 *** Warning: the GNU linker, at least up to release 2.9.1, is reported
  71 *** to be unable to reliably create shared libraries on AIX.
  72 *** Therefore, libtool is disabling shared libraries support.  If you
  73 *** really care for shared libraries, you may want to modify your PATH
  74 *** so that a non-GNU linker is found, and then restart.
  75
  76 EOF
  77     ;;
  78
  79   amigaos*)
  80     archive_cmds='$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 $output_objdir && a2ixlibrary -32)'
  81     hardcode_libdir_flag_spec='-L$libdir'
  82     hardcode_minus_L=yes
  83
  84     # Samuel A. Falvo II <kc5tja@dolphin.openprojects.net> reports
  85     # that the semantics of dynamic libraries on AmigaOS, at least up
  86     # to version 4, is to share data among multiple programs linked
  87     # with the same dynamic library.  Since this doesn't match the
  88     # behavior of shared libraries on other platforms, we can use
  89     # them.
  90     ld_shlibs=no
  91     ;;
  92
  93   beos*)
  94     if $LD --help 2>&1 | egrep ': supported targets:.* elf' > /dev/null; then
  95       allow_undefined_flag=unsupported
  96       # Joseph Beckenbach <jrb3@best.com> says some releases of gcc
  97       # support --undefined.  This deserves some investigation.  FIXME
  98       archive_cmds='$CC -nostart $libobjs $deplibs $linker_flags ${wl}-soname $wl$soname -o $lib'
  99     else
 100       ld_shlibs=no
 101     fi
 102     ;;
 103
 104   cygwin* | mingw*)
 105     # hardcode_libdir_flag_spec is actually meaningless, as there is
 106     # no search path for DLLs.
 107     hardcode_libdir_flag_spec='-L$libdir'
 108     allow_undefined_flag=unsupported
 109     always_export_symbols=yes
 110
 111     extract_expsyms_cmds='test -f $output_objdir/impgen.c || \
 112       sed -e "/^# \/\* impgen\.c starts here \*\//,/^# \/\* impgen.c ends here \*\// { s/^# //; p; }" -e d < $0 > $output_objdir/impgen.c~
 113       test -f $output_objdir/impgen.exe || (cd $output_objdir && \
 114       if test "x$HOST_CC" != "x" ; then $HOST_CC -o impgen impgen.c ; \
 115       else $CC -o impgen impgen.c ; fi)~
 116       $output_objdir/impgen $dir/$soname > $output_objdir/$soname-def'
 117
 118     old_archive_from_expsyms_cmds='$DLLTOOL --as=$AS --dllname $soname --def $output_objdir/$soname-def --output-lib $output_objdir/$newlib'
 119
 120     # cygwin and mingw dlls have different entry points and sets of symbols
 121     # to exclude.
 122     # FIXME: what about values for MSVC?
 123     dll_entry=__cygwin_dll_entry@12
 124     dll_exclude_symbols=DllMain@12,_cygwin_dll_entry@12,_cygwin_noncygwin_dll_entry@12~
 125     case "$host_os" in
 126     mingw*)
 127       # mingw values
 128       dll_entry=_DllMainCRTStartup@12
 129       dll_exclude_symbols=DllMain@12,DllMainCRTStartup@12,DllEntryPoint@12~
 130       ;;
 131     esac
 132
 133     # mingw and cygwin differ, and it's simplest to just exclude the union
 134     # of the two symbol sets.
 135     dll_exclude_symbols=DllMain@12,_cygwin_dll_entry@12,_cygwin_noncygwin_dll_entry@12,DllMainCRTStartup@12,DllEntryPoint@12
 136
 137     # recent cygwin and mingw systems supply a stub DllMain which the user
 138     # can override, but on older systems we have to supply one (in ltdll.c)
 139     if test "x$lt_cv_need_dllmain" = "xyes"; then
 140       ltdll_obj='$output_objdir/$soname-ltdll.'"$objext "
 141       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~
 142         test -f $output_objdir/$soname-ltdll.$objext || (cd $output_objdir && $CC -c $soname-ltdll.c)~'
 143     else
 144       ltdll_obj=
 145       ltdll_cmds=
 146     fi
 147
 148     # Extract the symbol export list from an `--export-all' def file,
 149     # then regenerate the def file from the symbol export list, so that
 150     # the compiled dll only exports the symbol export list.
 151     # Be careful not to strip the DATA tag left be newer dlltools.
 152     export_symbols_cmds="$ltdll_cmds"'
 153       $DLLTOOL --export-all --exclude-symbols '$dll_exclude_symbols' --output-def $output_objdir/$soname-def '$ltdll_obj'$libobjs $convenience~
 154       sed -e "1,/EXPORTS/d" -e "s/ @ [0-9]*//" -e "s/ *;.*$//" < $output_objdir/$soname-def > $export_symbols'
 155
 156     # If DATA tags from a recent dlltool are present, honour them!
 157     archive_expsym_cmds='echo EXPORTS > $output_objdir/$soname-def~
 158       _lt_hint=1;
 159       cat $export_symbols | while read symbol; do
 160         set dummy \$symbol;
 161         case \$# in
 162           2) echo "     \$2 @ \$_lt_hint ; " >> $output_objdir/$soname-def;;
 163           *) echo "     \$2 @ \$_lt_hint \$3 ; " >> $output_objdir/$soname-def;;
 164         esac;
 165         _lt_hint=`expr 1 + \$_lt_hint`;
 166       done~
 167       '"$ltdll_cmds"'
 168       $CC -Wl,--base-file,$output_objdir/$soname-base '$lt_cv_gcj_dll_switch' -Wl,-e,'$dll_entry' -o $lib '$ltdll_obj'$libobjs $deplibs $compiler_flags~
 169       $DLLTOOL --as=$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~
 170       $CC -Wl,--base-file,$output_objdir/$soname-base $output_objdir/$soname-exp '$lt_cv_gcj_dll_switch' -Wl,-e,'$dll_entry' -o $lib '$ltdll_obj'$libobjs $deplibs $compiler_flags~
 171       $DLLTOOL --as=$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~
 172       $CC $output_objdir/$soname-exp '$lt_cv_gcj_dll_switch' -Wl,-e,'$dll_entry' -o $lib '$ltdll_obj'$libobjs $deplibs $compiler_flags'
 173     ;;
 174
 175   netbsd*)
 176     if echo __ELF__ | $CC -E - | grep __ELF__ >/dev/null; then
 177       archive_cmds='$LD -Bshareable $libobjs $deplibs $linker_flags -o $lib'
 178       wlarc=
 179     else
 180       archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
 181       archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
 182     fi
 183     ;;
 184
 185   solaris* | sysv5*)
 186     if $LD -v 2>&1 | egrep 'BFD 2\.8' > /dev/null; then
 187       ld_shlibs=no
 188       cat <<EOF 1>&2
 189
 190 *** Warning: The releases 2.8.* of the GNU linker cannot reliably
 191 *** create shared libraries on Solaris systems.  Therefore, libtool
 192 *** is disabling shared libraries support.  We urge you to upgrade GNU
 193 *** binutils to release 2.9.1 or newer.  Another option is to modify
 194 *** your PATH or compiler configuration so that the native linker is
 195 *** used, and then restart.
 196
 197 EOF
 198     elif $LD --help 2>&1 | egrep ': supported targets:.* elf' > /dev/null; then
 199       archive_cmds='$CC -shared $libobjs $deplibs $linker_flags ${wl}-soname $wl$soname -o $lib'
 200       archive_expsym_cmds='$CC -shared $libobjs $deplibs $linker_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
 201     else
 202       ld_shlibs=no
 203     fi
 204     ;;
 205
 206   sunos4*)
 207     archive_cmds='$LD -assert pure-text -Bshareable -o $lib $libobjs $deplibs $linker_flags'
 208     wlarc=
 209     hardcode_direct=yes
 210     hardcode_shlibpath_var=no
 211     ;;
 212
 213   *)
 214     if $LD --help 2>&1 | egrep ': supported targets:.* elf' > /dev/null; then
 215       archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
 216       archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
 217     else
 218       ld_shlibs=no
 219     fi
 220     ;;
 221   esac
 222
 223   if test "$ld_shlibs" = yes; then
 224     runpath_var=LD_RUN_PATH
 225     hardcode_libdir_flag_spec="$wlarc"'--rpath '"$wlarc"'$libdir'
 226     export_dynamic_flag_spec="$wlarc"'--export-dynamic'
 227     case $host_os in
 228     cygwin* | mingw*)
 229       # dlltool doesn't understand --whole-archive et. al.
 230       whole_archive_flag_spec=
 231       ;;
 232     *)
 233       # ancient GNU ld didn't support --whole-archive et. al.
 234       if $LD --help 2>&1 | egrep 'no-whole-archive' > /dev/null; then
 235         whole_archive_flag_spec="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
 236       else
 237         whole_archive_flag_spec=
 238       fi
 239       ;;
 240     esac
 241   fi
 242 else
 243   # PORTME fill in a description of your system's linker (not GNU ld)
 244   case "$host_os" in
 245   aix3*)
 246     allow_undefined_flag=unsupported
 247     always_export_symbols=yes
 248     archive_expsym_cmds='$LD -o $output_objdir/$soname $libobjs $deplibs $linker_flags -bE:$export_symbols -T512 -H512 -bM:SRE~$AR $AR_FLAGS $lib $output_objdir/$soname'
 249     # Note: this linker hardcodes the directories in LIBPATH if there
 250     # are no directories specified by -L.
 251     hardcode_minus_L=yes
 252     if test "$with_gcc" = yes && test -z "$link_static_flag"; then
 253       # Neither direct hardcoding nor static linking is supported with a
 254       # broken collect2.
 255       hardcode_direct=unsupported
 256     fi
 257     ;;
 258
 259   aix4*)
 260     hardcode_libdir_flag_spec='${wl}-b ${wl}nolibpath ${wl}-b ${wl}libpath:$libdir:/usr/lib:/lib'
 261     hardcode_libdir_separator=':'
 262     if test "$with_gcc" = yes; then
 263       collect2name=`${CC} -print-prog-name=collect2`
 264       if test -f "$collect2name" && \
 265          strings "$collect2name" | grep resolve_lib_name >/dev/null
 266       then
 267         # We have reworked collect2
 268         hardcode_direct=yes
 269       else
 270         # We have old collect2
 271         hardcode_direct=unsupported
 272         # It fails to find uninstalled libraries when the uninstalled
 273         # path is not listed in the libpath.  Setting hardcode_minus_L
 274         # to unsupported forces relinking
 275         hardcode_minus_L=yes
 276         hardcode_libdir_flag_spec='-L$libdir'
 277         hardcode_libdir_separator=
 278       fi
 279       shared_flag='-shared'
 280     else
 281       shared_flag='${wl}-bM:SRE'
 282       hardcode_direct=yes
 283     fi
 284     allow_undefined_flag=' ${wl}-berok'
 285     archive_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${wl}-bexpall ${wl}-bnoentry${allow_undefined_flag}'
 286     archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${wl}-bE:$export_symbols ${wl}-bnoentry${allow_undefined_flag}'
 287     case "$host_os" in aix4.[01]|aix4.[01].*)
 288       # According to Greg Wooledge, -bexpall is only supported from AIX 4.2 on
 289       always_export_symbols=yes ;;
 290     esac
 291    ;;
 292
 293   amigaos*)
 294     archive_cmds='$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 $output_objdir && a2ixlibrary -32)'
 295     hardcode_libdir_flag_spec='-L$libdir'
 296     hardcode_minus_L=yes
 297     # see comment about different semantics on the GNU ld section
 298     ld_shlibs=no
 299     ;;
 300
 301   cygwin* | mingw*)
 302     # When not using gcc, we currently assume that we are using
 303     # Microsoft Visual C++.
 304     # hardcode_libdir_flag_spec is actually meaningless, as there is
 305     # no search path for DLLs.
 306     hardcode_libdir_flag_spec=' '
 307     allow_undefined_flag=unsupported
 308     # Tell ltmain to make .lib files, not .a files.
 309     libext=lib
 310     # FIXME: Setting linknames here is a bad hack.
 311     archive_cmds='$CC -o $lib $libobjs $compiler_flags `echo "$deplibs" | sed -e '\''s/ -lc$//'\''` -link -dll~linknames='
 312     # The linker will automatically build a .lib file if we build a DLL.
 313     old_archive_from_new_cmds='true'
 314     # FIXME: Should let the user specify the lib program.
 315     old_archive_cmds='lib /OUT:$oldlib$oldobjs$old_deplibs'
 316     fix_srcfile_path='`cygpath -w $srcfile`'
 317     ;;
 318
 319   freebsd1*)
 320     ld_shlibs=no
 321     ;;
 322
 323   # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor
 324   # support.  Future versions do this automatically, but an explicit c++rt0.o
 325   # does not break anything, and helps significantly (at the cost of a little
 326   # extra space).
 327   freebsd2.2*)
 328     archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags /usr/lib/c++rt0.o'
 329     hardcode_libdir_flag_spec='-R$libdir'
 330     hardcode_direct=yes
 331     hardcode_shlibpath_var=no
 332     ;;
 333
 334   # Unfortunately, older versions of FreeBSD 2 do not have this feature.
 335   freebsd2*)
 336     archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
 337     hardcode_direct=yes
 338     hardcode_minus_L=yes
 339     hardcode_shlibpath_var=no
 340     ;;
 341
 342   # FreeBSD 3 and greater uses gcc -shared to do shared libraries.
 343   freebsd*)
 344     archive_cmds='$CC -shared -o $lib $libobjs $deplibs $compiler_flags'
 345     hardcode_libdir_flag_spec='-R$libdir'
 346     hardcode_direct=yes
 347     hardcode_shlibpath_var=no
 348     ;;
 349
 350   hpux9* | hpux10* | hpux11*)
 351     case "$host_os" in
 352     hpux9*) archive_cmds='$rm $output_objdir/$soname~$LD -b +b $install_libdir -o $output_objdir/$soname $libobjs $deplibs $linker_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib' ;;
 353     *) archive_cmds='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags' ;;
 354     esac
 355     hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
 356     hardcode_libdir_separator=:
 357     hardcode_direct=yes
 358     hardcode_minus_L=yes # Not in the search PATH, but as the default
 359                          # location of the library.
 360     export_dynamic_flag_spec='${wl}-E'
 361     ;;
 362
 363   irix5* | irix6*)
 364     if test "$with_gcc" = yes; then
 365       archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && echo ${wl}-set_version ${wl}$verstring` ${wl}-update_registry ${wl}${objdir}/so_locations -o $lib'
 366     else
 367       archive_cmds='$LD -shared $libobjs $deplibs $linker_flags -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${objdir}/so_locations -o $lib'
 368     fi
 369     hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 370     hardcode_libdir_separator=:
 371     link_all_deplibs=yes
 372     ;;
 373
 374   netbsd*)
 375     if echo __ELF__ | $CC -E - | grep __ELF__ >/dev/null; then
 376       archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'  # a.out
 377     else
 378       archive_cmds='$LD -shared -o $lib $libobjs $deplibs $linker_flags'      # ELF
 379     fi
 380     hardcode_libdir_flag_spec='${wl}-R$libdir'
 381     hardcode_direct=yes
 382     hardcode_shlibpath_var=no
 383     ;;
 384
 385   openbsd*)
 386     archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
 387     hardcode_libdir_flag_spec='-R$libdir'
 388     hardcode_direct=yes
 389     hardcode_shlibpath_var=no
 390     ;;
 391
 392   os2*)
 393     hardcode_libdir_flag_spec='-L$libdir'
 394     hardcode_minus_L=yes
 395     allow_undefined_flag=unsupported
 396     archive_cmds='$echo "LIBRARY $libname INITINSTANCE" > $output_objdir/$libname.def~$echo "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~$echo DATA >> $output_objdir/$libname.def~$echo " SINGLE NONSHARED" >> $output_objdir/$libname.def~$echo EXPORTS >> $output_objdir/$libname.def~emxexp $libobjs >> $output_objdir/$libname.def~$CC -Zdll -Zcrtdll -o $lib $libobjs $deplibs $compiler_flags $output_objdir/$libname.def'
 397     old_archive_from_new_cmds='emximp -o $output_objdir/$libname.a $output_objdir/$libname.def'
 398     ;;
 399
 400   osf3*)
 401     if test "$with_gcc" = yes; then
 402       allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
 403       archive_cmds='$CC -shared${allow_undefined_flag} $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && echo ${wl}-set_version ${wl}$verstring` ${wl}-update_registry ${wl}${objdir}/so_locations -o $lib'
 404     else
 405       allow_undefined_flag=' -expect_unresolved \*'
 406       archive_cmds='$LD -shared${allow_undefined_flag} $libobjs $deplibs $linker_flags -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${objdir}/so_locations -o $lib'
 407     fi
 408     hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 409     hardcode_libdir_separator=:
 410     ;;
 411
 412   osf4* | osf5*)        # as osf3* with the addition of -msym flag
 413     if test "$with_gcc" = yes; then
 414       allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
 415       archive_cmds='$CC -shared${allow_undefined_flag} $libobjs $deplibs $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 $lib'
 416     else
 417       allow_undefined_flag=' -expect_unresolved \*'
 418       archive_cmds='$LD -shared${allow_undefined_flag} $libobjs $deplibs $linker_flags -msym -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${objdir}/so_locations -o $lib'
 419     fi
 420     hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 421     hardcode_libdir_separator=:
 422     ;;
 423
 424   sco3.2v5*)
 425     archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
 426     hardcode_shlibpath_var=no
 427     runpath_var=LD_RUN_PATH
 428     hardcode_runpath_var=yes
 429     ;;
 430
 431   solaris*)
 432     no_undefined_flag=' -z text'
 433     # $CC -shared without GNU ld will not create a library from C++
 434     # object files and a static libstdc++, better avoid it by now
 435     archive_cmds='$LD -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $linker_flags'
 436     archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
 437                 $LD -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$rm $lib.exp'
 438     hardcode_libdir_flag_spec='-R$libdir'
 439     hardcode_shlibpath_var=no
 440     case "$host_os" in
 441     solaris2.[0-5] | solaris2.[0-5].*) ;;
 442     *) # Supported since Solaris 2.6 (maybe 2.5.1?)
 443       whole_archive_flag_spec='-z allextract$convenience -z defaultextract' ;;
 444     esac
 445     link_all_deplibs=yes
 446     ;;
 447
 448   sunos4*)
 449     archive_cmds='$LD -assert pure-text -Bstatic -o $lib $libobjs $deplibs $linker_flags'
 450     hardcode_libdir_flag_spec='-L$libdir'
 451     hardcode_direct=yes
 452     hardcode_minus_L=yes
 453     hardcode_shlibpath_var=no
 454     ;;
 455
 456   sysv4)
 457     archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
 458     runpath_var='LD_RUN_PATH'
 459     hardcode_shlibpath_var=no
 460     hardcode_direct=no #Motorola manual says yes, but my tests say they lie
 461     ;;
 462
 463   sysv4.3*)
 464     archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
 465     hardcode_shlibpath_var=no
 466     export_dynamic_flag_spec='-Bexport'
 467     ;;
 468
 469   sysv5*)
 470     no_undefined_flag=' -z text'
 471     # $CC -shared without GNU ld will not create a library from C++
 472     # object files and a static libstdc++, better avoid it by now
 473     archive_cmds='$LD -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $linker_flags'
 474     archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
 475                 $LD -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$rm $lib.exp'
 476     hardcode_libdir_flag_spec=
 477     hardcode_shlibpath_var=no
 478     runpath_var='LD_RUN_PATH'
 479     ;;
 480
 481   uts4*)
 482     archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
 483     hardcode_libdir_flag_spec='-L$libdir'
 484     hardcode_shlibpath_var=no
 485     ;;
 486
 487   dgux*)
 488     archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
 489     hardcode_libdir_flag_spec='-L$libdir'
 490     hardcode_shlibpath_var=no
 491     ;;
 492
 493   sysv4*MP*)
 494     if test -d /usr/nec; then
 495       archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
 496       hardcode_shlibpath_var=no
 497       runpath_var=LD_RUN_PATH
 498       hardcode_runpath_var=yes
 499       ld_shlibs=yes
 500     fi
 501     ;;
 502
 503   sysv4.2uw2*)
 504     archive_cmds='$LD -G -o $lib $libobjs $deplibs $linker_flags'
 505     hardcode_direct=yes
 506     hardcode_minus_L=no
 507     hardcode_shlibpath_var=no
 508     hardcode_runpath_var=yes
 509     runpath_var=LD_RUN_PATH
 510     ;;
 511
 512   unixware7*)
 513     archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
 514     runpath_var='LD_RUN_PATH'
 515     hardcode_shlibpath_var=no
 516     ;;
 517
 518   *)
 519     ld_shlibs=no
 520     ;;
 521   esac
 522 fi
 523
 524 ## Compiler Characteristics: PIC flags, static flags, etc
 525
 526 # We don't use cached values here since only the C compiler
 527 # characteristics should be cached.
 528   ac_cv_prog_cc_pic=
 529   ac_cv_prog_cc_shlib=
 530   ac_cv_prog_cc_wl=
 531   ac_cv_prog_cc_static=
 532   ac_cv_prog_cc_no_builtin=
 533   ac_cv_prog_cc_can_build_shared=$can_build_shared
 534
 535     ac_cv_prog_cc_wl='-Wl,'
 536     ac_cv_prog_cc_static='-static'
 537
 538     case "$host_os" in
 539     beos* | irix5* | irix6* | osf3* | osf4* | osf5*)
 540       # PIC is the default for these OSes.
 541       ;;
 542     aix*)
 543       # Below there is a dirty hack to force normal static linking with -ldl
 544       # The problem is because libdl dynamically linked with both libc and
 545       # libC (AIX C++ library), which obviously doesn't included in libraries
 546       # list by gcc. This cause undefined symbols with -static flags.
 547       # This hack allows C programs to be linked with "-static -ldl", but
 548       # we not sure about C++ programs.
 549       ac_cv_prog_cc_static="$ac_cv_prog_cc_static ${ac_cv_prog_cc_wl}-lC"
 550       ;;
 551     cygwin* | mingw* | os2*)
 552       # This hack is so that the source file can tell whether it is being
 553       # built for inclusion in a dll (and should export symbols for example).
 554       ac_cv_prog_cc_pic='-DDLL_EXPORT'
 555       ;;
 556     amigaos*)
 557       # FIXME: we need at least 68020 code to build shared libraries, but
 558       # adding the `-m68020' flag to GCC prevents building anything better,
 559       # like `-m68040'.
 560       ac_cv_prog_cc_pic='-m68020 -resident32 -malways-restore-a4'
 561       ;;
 562     sysv4*MP*)
 563       if test -d /usr/nec; then
 564          ac_cv_prog_cc_pic=-Kconform_pic
 565       fi
 566       ;;
 567     *)
 568       ac_cv_prog_cc_pic='-fPIC'
 569       ;;
 570     esac
 571
 572 # GCJ did not exist at the time GCC didn't implicitly link libc in.
 573 need_lc=no