ltcf-gcj.sh

   1 #### This script is meant to be sourced by ltconfig.
   2
   3 # ltcf-gcj.sh - Create a GCJ compiler specific configuration
   4 #
   5 # Copyright (C) 1996-1999, 2000, 2001 Free Software Foundation, Inc.
   6 # Originally by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996
   7 #
   8 # Original GCJ support by:
   9 #    Alexandre Oliva <oliva@lsd.ic.unicamp.br>
  10 #
  11 # This file is free software; you can redistribute it and/or modify it
  12 # under the terms of the GNU General Public License as published by
  13 # the Free Software Foundation; either version 2 of the License, or
  14 # (at your option) any later version.
  15 #
  16 # This program is distributed in the hope that it will be useful, but
  17 # WITHOUT ANY WARRANTY; without even the implied warranty of
  18 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  19 # General Public License for more details.
  20 #
  21 # You should have received a copy of the GNU General Public License
  22 # along with this program; if not, write to the Free Software
  23 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  24 #
  25 # As a special exception to the GNU General Public License, if you
  26 # distribute this file as part of a program that contains a
  27 # configuration script generated by Autoconf, you may include it under
  28 # the same distribution terms that you use for the rest of that program.
  29
  30
  31 # Source file extension for Java test sources.
  32 ac_ext=java
  33
  34 # Object file extension for compiled Java test sources.
  35 objext=o
  36
  37 # Code to be used in simple compile tests
  38 lt_simple_compile_test_code="class foo {}"
  39
  40 # Code to be used in simple link tests
  41 lt_simple_link_test_code='public class conftest { public static void main(String[] argv) {}; }'
  42
  43 ## Linker Characteristics
  44 case "$host_os" in
  45 cygwin* | mingw*)
  46   # FIXME: the MSVC++ port hasn't been tested in a loooong time
  47   # When not using gcc, we currently assume that we are using
  48   # Microsoft Visual C++.
  49   if test "$with_gcc" != yes; then
  50     with_gnu_ld=no
  51   fi
  52   ;;
  53
  54 esac
  55
  56 ld_shlibs=yes
  57 if test "$with_gnu_ld" = yes; then
  58   # If archive_cmds runs LD, not CC, wlarc should be empty
  59   wlarc='${wl}'
  60
  61   # See if GNU ld supports shared libraries.
  62   case "$host_os" in
  63   aix3* | aix4*)
  64     # On AIX, the GNU linker is very broken
  65     ld_shlibs=no
  66     cat <<EOF 1>&2
  67
  68 *** Warning: the GNU linker, at least up to release 2.9.1, is reported
  69 *** to be unable to reliably create shared libraries on AIX.
  70 *** Therefore, libtool is disabling shared libraries support.  If you
  71 *** really care for shared libraries, you may want to modify your PATH
  72 *** so that a non-GNU linker is found, and then restart.
  73
  74 EOF
  75     ;;
  76
  77   amigaos*)
  78     archive_cmds='$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 $output_objdir && a2ixlibrary -32)'
  79     hardcode_libdir_flag_spec='-L$libdir'
  80     hardcode_minus_L=yes
  81
  82     # Samuel A. Falvo II <kc5tja@dolphin.openprojects.net> reports
  83     # that the semantics of dynamic libraries on AmigaOS, at least up
  84     # to version 4, is to share data among multiple programs linked
  85     # with the same dynamic library.  Since this doesn't match the
  86     # behavior of shared libraries on other platforms, we can use
  87     # them.
  88     ld_shlibs=no
  89     ;;
  90
  91   beos*)
  92     if $LD --help 2>&1 | egrep ': supported targets:.* elf' > /dev/null; then
  93       allow_undefined_flag=unsupported
  94       # Joseph Beckenbach <jrb3@best.com> says some releases of gcc
  95       # support --undefined.  This deserves some investigation.  FIXME
  96       archive_cmds='$CC -nostart $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
  97     else
  98       ld_shlibs=no
  99     fi
 100     ;;
 101
 102   cygwin* | mingw*)
 103     # hardcode_libdir_flag_spec is actually meaningless, as there is
 104     # no search path for DLLs.
 105     hardcode_libdir_flag_spec='-L$libdir'
 106     allow_undefined_flag=unsupported
 107     always_export_symbols=yes
 108
 109     extract_expsyms_cmds='test -f $output_objdir/impgen.c || \
 110       sed -e "/^# \/\* impgen\.c starts here \*\//,/^# \/\* impgen.c ends here \*\// { s/^# //; p; }" -e d < $0 > $output_objdir/impgen.c~
 111       test -f $output_objdir/impgen.exe || (cd $output_objdir && \
 112       if test "x$HOST_CC" != "x" ; then $HOST_CC -o impgen impgen.c ; \
 113       else $CC -o impgen impgen.c ; fi)~
 114       $output_objdir/impgen $dir/$soname > $output_objdir/$soname-def'
 115
 116     old_archive_from_expsyms_cmds='$DLLTOOL --as=$AS --dllname $soname --def $output_objdir/$soname-def --output-lib $output_objdir/$newlib'
 117
 118     # cygwin and mingw dlls have different entry points and sets of symbols
 119     # to exclude.
 120     # FIXME: what about values for MSVC?
 121     dll_entry=__cygwin_dll_entry@12
 122     dll_exclude_symbols=DllMain@12,_cygwin_dll_entry@12,_cygwin_noncygwin_dll_entry@12~
 123     case "$host_os" in
 124     mingw*)
 125       # mingw values
 126       dll_entry=_DllMainCRTStartup@12
 127       dll_exclude_symbols=DllMain@12,DllMainCRTStartup@12,DllEntryPoint@12~
 128       ;;
 129     esac
 130
 131     # mingw and cygwin differ, and it's simplest to just exclude the union
 132     # of the two symbol sets.
 133     dll_exclude_symbols=DllMain@12,_cygwin_dll_entry@12,_cygwin_noncygwin_dll_entry@12,DllMainCRTStartup@12,DllEntryPoint@12
 134
 135     # recent cygwin and mingw systems supply a stub DllMain which the user
 136     # can override, but on older systems we have to supply one (in ltdll.c)
 137     if test "x$lt_cv_need_dllmain" = "xyes"; then
 138       ltdll_obj='$output_objdir/$soname-ltdll.'"$objext "
 139       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~
 140         test -f $output_objdir/$soname-ltdll.$objext || (cd $output_objdir && $CC -c $soname-ltdll.c)~'
 141     else
 142       ltdll_obj=
 143       ltdll_cmds=
 144     fi
 145
 146     # Extract the symbol export list from an `--export-all' def file,
 147     # then regenerate the def file from the symbol export list, so that
 148     # the compiled dll only exports the symbol export list.
 149     # Be careful not to strip the DATA tag left be newer dlltools.
 150     export_symbols_cmds="$ltdll_cmds"'
 151       $DLLTOOL --export-all --exclude-symbols '$dll_exclude_symbols' --output-def $output_objdir/$soname-def '$ltdll_obj'$libobjs $convenience~
 152       sed -e "1,/EXPORTS/d" -e "s/ @ [0-9]*//" -e "s/ *;.*$//" < $output_objdir/$soname-def > $export_symbols'
 153
 154     # If DATA tags from a recent dlltool are present, honour them!
 155     archive_expsym_cmds='echo EXPORTS > $output_objdir/$soname-def~
 156       _lt_hint=1;
 157       cat $export_symbols | while read symbol; do
 158         set dummy \$symbol;
 159         case \$# in
 160           2) echo "     \$2 @ \$_lt_hint ; " >> $output_objdir/$soname-def;;
 161           *) echo "     \$2 @ \$_lt_hint \$3 ; " >> $output_objdir/$soname-def;;
 162         esac;
 163         _lt_hint=`expr 1 + \$_lt_hint`;
 164       done~
 165       '"$ltdll_cmds"'
 166       $CC -Wl,--base-file,$output_objdir/$soname-base '$lt_cv_gcj_dll_switch' -Wl,-e,'$dll_entry' -o $lib '$ltdll_obj'$libobjs $deplibs $compiler_flags~
 167       $DLLTOOL --as=$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~
 168       $CC -Wl,--base-file,$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~
 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 $output_objdir/$soname-exp '$lt_cv_gcj_dll_switch' -Wl,-e,'$dll_entry' -o $lib '$ltdll_obj'$libobjs $deplibs $compiler_flags'
 171     ;;
 172
 173   netbsd*)
 174     if echo __ELF__ | $CC -E - | grep __ELF__ >/dev/null; then
 175       archive_cmds='$LD -Bshareable $libobjs $deplibs $linker_flags -o $lib'
 176       wlarc=
 177     else
 178       archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
 179       archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
 180     fi
 181     ;;
 182
 183   solaris* | sysv5*)
 184     if $LD -v 2>&1 | egrep 'BFD 2\.8' > /dev/null; then
 185       ld_shlibs=no
 186       cat <<EOF 1>&2
 187
 188 *** Warning: The releases 2.8.* of the GNU linker cannot reliably
 189 *** create shared libraries on Solaris systems.  Therefore, libtool
 190 *** is disabling shared libraries support.  We urge you to upgrade GNU
 191 *** binutils to release 2.9.1 or newer.  Another option is to modify
 192 *** your PATH or compiler configuration so that the native linker is
 193 *** used, and then restart.
 194
 195 EOF
 196     elif $LD --help 2>&1 | egrep ': supported targets:.* elf' > /dev/null; then
 197       archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
 198       archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
 199     else
 200       ld_shlibs=no
 201     fi
 202     ;;
 203
 204   sunos4*)
 205     archive_cmds='$LD -assert pure-text -Bshareable -o $lib $libobjs $deplibs $linker_flags'
 206     wlarc=
 207     hardcode_direct=yes
 208     hardcode_shlibpath_var=no
 209     ;;
 210
 211   *)
 212     if $LD --help 2>&1 | egrep ': supported targets:.* elf' > /dev/null; then
 213       archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
 214       archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
 215     else
 216       ld_shlibs=no
 217     fi
 218     ;;
 219   esac
 220
 221   if test "$ld_shlibs" = yes; then
 222     runpath_var=LD_RUN_PATH
 223     hardcode_libdir_flag_spec='${wl}--rpath ${wl}$libdir'
 224     export_dynamic_flag_spec='${wl}--export-dynamic'
 225     case $host_os in
 226     cygwin* | mingw*)
 227       # dlltool doesn't understand --whole-archive et. al.
 228       whole_archive_flag_spec=
 229       ;;
 230     *)
 231       # ancient GNU ld didn't support --whole-archive et. al.
 232       if $LD --help 2>&1 | egrep 'no-whole-archive' > /dev/null; then
 233         whole_archive_flag_spec="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
 234       else
 235         whole_archive_flag_spec=
 236       fi
 237       ;;
 238     esac
 239   fi
 240 else
 241   # PORTME fill in a description of your system's linker (not GNU ld)
 242   case "$host_os" in
 243   aix3*)
 244     allow_undefined_flag=unsupported
 245     always_export_symbols=yes
 246     archive_expsym_cmds='$LD -o $output_objdir/$soname $libobjs $deplibs $linker_flags -bE:$export_symbols -T512 -H512 -bM:SRE~$AR $AR_FLAGS $lib $output_objdir/$soname'
 247     # Note: this linker hardcodes the directories in LIBPATH if there
 248     # are no directories specified by -L.
 249     hardcode_minus_L=yes
 250     if test "$with_gcc" = yes && test -z "$link_static_flag"; then
 251       # Neither direct hardcoding nor static linking is supported with a
 252       # broken collect2.
 253       hardcode_direct=unsupported
 254     fi
 255     ;;
 256
 257   aix4*)
 258     hardcode_libdir_flag_spec='${wl}-b ${wl}nolibpath ${wl}-b ${wl}libpath:$libdir:/usr/lib:/lib'
 259     hardcode_libdir_separator=':'
 260     if test "$with_gcc" = yes; then
 261       collect2name=`${CC} -print-prog-name=collect2`
 262       if test -f "$collect2name" && \
 263          strings "$collect2name" | grep resolve_lib_name >/dev/null
 264       then
 265         # We have reworked collect2
 266         hardcode_direct=yes
 267       else
 268         # We have old collect2
 269         hardcode_direct=unsupported
 270         # It fails to find uninstalled libraries when the uninstalled
 271         # path is not listed in the libpath.  Setting hardcode_minus_L
 272         # to unsupported forces relinking
 273         hardcode_minus_L=yes
 274         hardcode_libdir_flag_spec='-L$libdir'
 275         hardcode_libdir_separator=
 276       fi
 277       shared_flag='-shared'
 278     else
 279       shared_flag='${wl}-bM:SRE'
 280       hardcode_direct=yes
 281     fi
 282     allow_undefined_flag=' ${wl}-berok'
 283     archive_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${wl}-bexpall ${wl}-bnoentry${allow_undefined_flag}'
 284     archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${wl}-bE:$export_symbols ${wl}-bnoentry${allow_undefined_flag}'
 285     case "$host_os" in aix4.[01]|aix4.[01].*)
 286       # According to Greg Wooledge, -bexpall is only supported from AIX 4.2 on
 287       always_export_symbols=yes ;;
 288     esac
 289
 290     # We don't want to build shared libraries on unknown CPU types.
 291     case $host_cpu in
 292     powerpc | rs6000) ;;
 293     *) ld_shlibs=no ;;
 294     esac
 295    ;;
 296
 297   amigaos*)
 298     archive_cmds='$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 $output_objdir && a2ixlibrary -32)'
 299     hardcode_libdir_flag_spec='-L$libdir'
 300     hardcode_minus_L=yes
 301     # see comment about different semantics on the GNU ld section
 302     ld_shlibs=no
 303     ;;
 304
 305   cygwin* | mingw*)
 306     # When not using gcc, we currently assume that we are using
 307     # Microsoft Visual C++.
 308     # hardcode_libdir_flag_spec is actually meaningless, as there is
 309     # no search path for DLLs.
 310     hardcode_libdir_flag_spec=' '
 311     allow_undefined_flag=unsupported
 312     # Tell ltmain to make .lib files, not .a files.
 313     libext=lib
 314     # FIXME: Setting linknames here is a bad hack.
 315     archive_cmds='$CC -o $lib $libobjs $compiler_flags `echo "$deplibs" | sed -e '\''s/ -lc$//'\''` -link -dll~linknames='
 316     # The linker will automatically build a .lib file if we build a DLL.
 317     old_archive_from_new_cmds='true'
 318     # FIXME: Should let the user specify the lib program.
 319     old_archive_cmds='lib /OUT:$oldlib$oldobjs$old_deplibs'
 320     fix_srcfile_path='`cygpath -w $srcfile`'
 321     ;;
 322
 323   freebsd1*)
 324     ld_shlibs=no
 325     ;;
 326
 327   # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor
 328   # support.  Future versions do this automatically, but an explicit c++rt0.o
 329   # does not break anything, and helps significantly (at the cost of a little
 330   # extra space).
 331   freebsd2.2*)
 332     archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags /usr/lib/c++rt0.o'
 333     hardcode_libdir_flag_spec='-R$libdir'
 334     hardcode_direct=yes
 335     hardcode_shlibpath_var=no
 336     ;;
 337
 338   # Unfortunately, older versions of FreeBSD 2 do not have this feature.
 339   freebsd2*)
 340     archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
 341     hardcode_direct=yes
 342     hardcode_minus_L=yes
 343     hardcode_shlibpath_var=no
 344     ;;
 345
 346   # FreeBSD 3 and greater uses gcc -shared to do shared libraries.
 347   freebsd*)
 348     archive_cmds='$CC -shared -o $lib $libobjs $deplibs $compiler_flags'
 349     hardcode_libdir_flag_spec='-R$libdir'
 350     hardcode_direct=yes
 351     hardcode_shlibpath_var=no
 352     ;;
 353
 354   hpux9* | hpux10* | hpux11*)
 355     case "$host_os" in
 356     hpux9*) archive_cmds='$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 $lib' ;;
 357     *) archive_cmds='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags' ;;
 358     esac
 359     hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
 360     hardcode_libdir_separator=:
 361     hardcode_direct=yes
 362     hardcode_minus_L=yes # Not in the search PATH, but as the default
 363                          # location of the library.
 364     export_dynamic_flag_spec='${wl}-E'
 365     ;;
 366
 367   irix5* | irix6*)
 368     if test "$with_gcc" = yes; then
 369       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 $lib'
 370     else
 371       archive_cmds='$LD -shared $libobjs $deplibs $linker_flags -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${objdir}/so_locations -o $lib'
 372     fi
 373     hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 374     hardcode_libdir_separator=:
 375     link_all_deplibs=yes
 376     ;;
 377
 378   netbsd*)
 379     if echo __ELF__ | $CC -E - | grep __ELF__ >/dev/null; then
 380       archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'  # a.out
 381     else
 382       archive_cmds='$LD -shared -o $lib $libobjs $deplibs $linker_flags'      # ELF
 383     fi
 384     hardcode_libdir_flag_spec='${wl}-R$libdir'
 385     hardcode_direct=yes
 386     hardcode_shlibpath_var=no
 387     ;;
 388
 389   openbsd*)
 390     archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
 391     hardcode_libdir_flag_spec='-R$libdir'
 392     hardcode_direct=yes
 393     hardcode_shlibpath_var=no
 394     ;;
 395
 396   os2*)
 397     hardcode_libdir_flag_spec='-L$libdir'
 398     hardcode_minus_L=yes
 399     allow_undefined_flag=unsupported
 400     archive_cmds='$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'
 401     old_archive_from_new_cmds='emximp -o $output_objdir/$libname.a $output_objdir/$libname.def'
 402     ;;
 403
 404   osf3*)
 405     if test "$with_gcc" = yes; then
 406       allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
 407       archive_cmds='$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 $lib'
 408     else
 409       allow_undefined_flag=' -expect_unresolved \*'
 410       archive_cmds='$LD -shared${allow_undefined_flag} $libobjs $deplibs $linker_flags -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${objdir}/so_locations -o $lib'
 411     fi
 412     hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 413     hardcode_libdir_separator=:
 414     ;;
 415
 416   osf4* | osf5*)        # as osf3* with the addition of -msym flag
 417     if test "$with_gcc" = yes; then
 418       allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
 419       archive_cmds='$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 $lib'
 420     else
 421       allow_undefined_flag=' -expect_unresolved \*'
 422       archive_cmds='$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 $lib'
 423     fi
 424     hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 425     hardcode_libdir_separator=:
 426     ;;
 427
 428   sco3.2v5*)
 429     archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
 430     hardcode_shlibpath_var=no
 431     runpath_var=LD_RUN_PATH
 432     hardcode_runpath_var=yes
 433     ;;
 434
 435   solaris*)
 436     no_undefined_flag=' -z text'
 437     # $CC -shared without GNU ld will not create a library from C++
 438     # object files and a static libstdc++, better avoid it by now
 439     archive_cmds='$LD -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $linker_flags'
 440     archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
 441                 $LD -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$rm $lib.exp'
 442     hardcode_libdir_flag_spec='-R$libdir'
 443     hardcode_shlibpath_var=no
 444     case "$host_os" in
 445     solaris2.[0-5] | solaris2.[0-5].*) ;;
 446     *) # Supported since Solaris 2.6 (maybe 2.5.1?)
 447       whole_archive_flag_spec='-z allextract$convenience -z defaultextract' ;;
 448     esac
 449     link_all_deplibs=yes
 450     ;;
 451
 452   sunos4*)
 453     archive_cmds='$LD -assert pure-text -Bstatic -o $lib $libobjs $deplibs $linker_flags'
 454     hardcode_libdir_flag_spec='-L$libdir'
 455     hardcode_direct=yes
 456     hardcode_minus_L=yes
 457     hardcode_shlibpath_var=no
 458     ;;
 459
 460   sysv4)
 461     archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
 462     runpath_var='LD_RUN_PATH'
 463     hardcode_shlibpath_var=no
 464     hardcode_direct=no #Motorola manual says yes, but my tests say they lie
 465     ;;
 466
 467   sysv4.3*)
 468     archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
 469     hardcode_shlibpath_var=no
 470     export_dynamic_flag_spec='-Bexport'
 471     ;;
 472
 473   sysv5*)
 474     no_undefined_flag=' -z text'
 475     # $CC -shared without GNU ld will not create a library from C++
 476     # object files and a static libstdc++, better avoid it by now
 477     archive_cmds='$LD -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $linker_flags'
 478     archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
 479                 $LD -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$rm $lib.exp'
 480     hardcode_libdir_flag_spec=
 481     hardcode_shlibpath_var=no
 482     runpath_var='LD_RUN_PATH'
 483     ;;
 484
 485   uts4*)
 486     archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
 487     hardcode_libdir_flag_spec='-L$libdir'
 488     hardcode_shlibpath_var=no
 489     ;;
 490
 491   dgux*)
 492     archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
 493     hardcode_libdir_flag_spec='-L$libdir'
 494     hardcode_shlibpath_var=no
 495     ;;
 496
 497   sysv4*MP*)
 498     if test -d /usr/nec; then
 499       archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
 500       hardcode_shlibpath_var=no
 501       runpath_var=LD_RUN_PATH
 502       hardcode_runpath_var=yes
 503       ld_shlibs=yes
 504     fi
 505     ;;
 506
 507   sysv4.2uw2*)
 508     archive_cmds='$LD -G -o $lib $libobjs $deplibs $linker_flags'
 509     hardcode_direct=yes
 510     hardcode_minus_L=no
 511     hardcode_shlibpath_var=no
 512     hardcode_runpath_var=yes
 513     runpath_var=LD_RUN_PATH
 514     ;;
 515
 516   unixware7*)
 517     archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
 518     runpath_var='LD_RUN_PATH'
 519     hardcode_shlibpath_var=no
 520     ;;
 521
 522   *)
 523     ld_shlibs=no
 524     ;;
 525   esac
 526 fi
 527
 528 ## Compiler Characteristics: PIC flags, static flags, etc
 529
 530 # We don't use cached values here since only the C compiler
 531 # characteristics should be cached.
 532   ac_cv_prog_cc_pic=
 533   ac_cv_prog_cc_shlib=
 534   ac_cv_prog_cc_wl=
 535   ac_cv_prog_cc_static=
 536   ac_cv_prog_cc_no_builtin=
 537   ac_cv_prog_cc_can_build_shared=$can_build_shared
 538
 539     ac_cv_prog_cc_wl='-Wl,'
 540     ac_cv_prog_cc_static='-static'
 541
 542     case "$host_os" in
 543     beos* | irix5* | irix6* | osf3* | osf4* | osf5*)
 544       # PIC is the default for these OSes.
 545       ;;
 546     aix*)
 547       # Below there is a dirty hack to force normal static linking with -ldl
 548       # The problem is because libdl dynamically linked with both libc and
 549       # libC (AIX C++ library), which obviously doesn't included in libraries
 550       # list by gcc. This cause undefined symbols with -static flags.
 551       # This hack allows C programs to be linked with "-static -ldl", but
 552       # we not sure about C++ programs.
 553       ac_cv_prog_cc_static="$ac_cv_prog_cc_static ${ac_cv_prog_cc_wl}-lC"
 554       ;;
 555     cygwin* | mingw* | os2*)
 556       # This hack is so that the source file can tell whether it is being
 557       # built for inclusion in a dll (and should export symbols for example).
 558       ac_cv_prog_cc_pic='-DDLL_EXPORT'
 559       ;;
 560     amigaos*)
 561       # FIXME: we need at least 68020 code to build shared libraries, but
 562       # adding the `-m68020' flag to GCC prevents building anything better,
 563       # like `-m68040'.
 564       ac_cv_prog_cc_pic='-m68020 -resident32 -malways-restore-a4'
 565       ;;
 566     sysv4*MP*)
 567       if test -d /usr/nec; then
 568          ac_cv_prog_cc_pic=-Kconform_pic
 569       fi
 570       ;;
 571     *)
 572       ac_cv_prog_cc_pic='-fPIC'
 573       ;;
 574     esac
 575
 576 # GCJ did not exist at the time GCC didn't implicitly link libc in.
 577 need_lc=no