toolchain/gcc/ltcf-c.sh

   1 #### This script is meant to be sourced by ltconfig.
   2
   3 # ltcf-c.sh - Create a C compiler specific configuration
   4 #
   5 # Copyright (C) 1996-2000, 2001 Free Software Foundation, Inc.
   6 # Originally by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996
   7 #
   8 # This file is free software; you can redistribute it and/or modify it
   9 # under the terms of the GNU General Public License as published by
  10 # the Free Software Foundation; either version 2 of the License, or
  11 # (at your option) any later version.
  12 #
  13 # This program is distributed in the hope that it will be useful, but
  14 # WITHOUT ANY WARRANTY; without even the implied warranty of
  15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16 # General Public License for more details.
  17 #
  18 # You should have received a copy of the GNU General Public License
  19 # along with this program; if not, write to the Free Software
  20 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  21 #
  22 # As a special exception to the GNU General Public License, if you
  23 # distribute this file as part of a program that contains a
  24 # configuration script generated by Autoconf, you may include it under
  25 # the same distribution terms that you use for the rest of that program.
  26
  27
  28 # Source file extension for C test sources.
  29 ac_ext=c
  30
  31 # Object file extension for compiled C test sources.
  32 objext=o
  33
  34 # Code to be used in simple compile tests
  35 lt_simple_compile_test_code="int some_variable = 0;"
  36
  37 # Code to be used in simple link tests
  38 lt_simple_link_test_code='main(){return(0);}'
  39
  40 ## Linker Characteristics
  41 case $host_os in
  42 cygwin* | mingw*)
  43   # FIXME: the MSVC++ port hasn't been tested in a loooong time
  44   # When not using gcc, we currently assume that we are using
  45   # Microsoft Visual C++.
  46   if test "$with_gcc" != yes; then
  47     with_gnu_ld=no
  48   fi
  49   ;;
  50
  51 esac
  52
  53 ld_shlibs=yes
  54 if test "$with_gnu_ld" = yes; then
  55   # If archive_cmds runs LD, not CC, wlarc should be empty
  56   wlarc='${wl}'
  57
  58   # See if GNU ld supports shared libraries.
  59   case $host_os in
  60   aix3* | aix4* | aix5*)
  61     # On AIX/PPC, the GNU linker is very broken
  62     if test "$host_cpu" != ia64; then
  63       ld_shlibs=no
  64       cat <<EOF 1>&2
  65
  66 *** Warning: the GNU linker, at least up to release 2.9.1, is reported
  67 *** to be unable to reliably create shared libraries on AIX.
  68 *** Therefore, libtool is disabling shared libraries support.  If you
  69 *** really care for shared libraries, you may want to modify your PATH
  70 *** so that a non-GNU linker is found, and then restart.
  71
  72 EOF
  73     fi
  74     ;;
  75
  76   amigaos*)
  77     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 $output_objdir && a2ixlibrary -32)'
  78     hardcode_libdir_flag_spec='-L$libdir'
  79     hardcode_minus_L=yes
  80
  81     # Samuel A. Falvo II <kc5tja@dolphin.openprojects.net> reports
  82     # that the semantics of dynamic libraries on AmigaOS, at least up
  83     # to version 4, is to share data among multiple programs linked
  84     # with the same dynamic library.  Since this doesn't match the
  85     # behavior of shared libraries on other platforms, we can use
  86     # them.
  87     ld_shlibs=no
  88     ;;
  89
  90   beos*)
  91     if $LD --help 2>&1 | egrep ': supported targets:.* elf' > /dev/null; then
  92       allow_undefined_flag=unsupported
  93       # Joseph Beckenbach <jrb3@best.com> says some releases of gcc
  94       # support --undefined.  This deserves some investigation.  FIXME
  95       archive_cmds='$CC -nostart $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
  96     else
  97       ld_shlibs=no
  98     fi
  99     ;;
 100
 101   cygwin* | mingw*)
 102     # hardcode_libdir_flag_spec is actually meaningless, as there is
 103     # no search path for DLLs.
 104     hardcode_libdir_flag_spec='-L$libdir'
 105     allow_undefined_flag=unsupported
 106     always_export_symbols=yes
 107
 108     extract_expsyms_cmds='test -f $output_objdir/impgen.c || \
 109       sed -e "/^# \/\* impgen\.c starts here \*\//,/^# \/\* impgen.c ends here \*\// { s/^# //; p; }" -e d < $0 > $output_objdir/impgen.c~
 110       test -f $output_objdir/impgen.exe || (cd $output_objdir && \
 111       if test "x$BUILD_CC" != "x" ; then $BUILD_CC -o impgen impgen.c ; \
 112       else $CC -o impgen impgen.c ; fi)~
 113       $output_objdir/impgen $dir/$soroot > $output_objdir/$soname-def'
 114
 115     old_archive_from_expsyms_cmds='$DLLTOOL --as=$AS --dllname $soname --def $output_objdir/$soname-def --output-lib $output_objdir/$newlib'
 116
 117     # cygwin and mingw dlls have different entry points and sets of symbols
 118     # to exclude.
 119     # FIXME: what about values for MSVC?
 120     dll_entry=__cygwin_dll_entry@12
 121     dll_exclude_symbols=DllMain@12,_cygwin_dll_entry@12,_cygwin_noncygwin_dll_entry@12~
 122     case $host_os in
 123     mingw*)
 124       # mingw values
 125       dll_entry=_DllMainCRTStartup@12
 126       dll_exclude_symbols=DllMain@12,DllMainCRTStartup@12,DllEntryPoint@12~
 127       ;;
 128     esac
 129
 130     # mingw and cygwin differ, and it's simplest to just exclude the union
 131     # of the two symbol sets.
 132     dll_exclude_symbols=DllMain@12,_cygwin_dll_entry@12,_cygwin_noncygwin_dll_entry@12,DllMainCRTStartup@12,DllEntryPoint@12
 133
 134     # recent cygwin and mingw systems supply a stub DllMain which the user
 135     # can override, but on older systems we have to supply one (in ltdll.c)
 136     if test "x$lt_cv_need_dllmain" = "xyes"; then
 137       ltdll_obj='$output_objdir/$soname-ltdll.'"$objext "
 138       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~
 139         test -f $output_objdir/$soname-ltdll.$objext || (cd $output_objdir && $CC -c $soname-ltdll.c)~'
 140     else
 141       ltdll_obj=
 142       ltdll_cmds=
 143     fi
 144
 145     # Extract the symbol export list from an `--export-all' def file,
 146     # then regenerate the def file from the symbol export list, so that
 147     # the compiled dll only exports the symbol export list.
 148     # Be careful not to strip the DATA tag left be newer dlltools.
 149     export_symbols_cmds="$ltdll_cmds"'
 150       $DLLTOOL --export-all --exclude-symbols '$dll_exclude_symbols' --output-def $output_objdir/$soname-def '$ltdll_obj'$libobjs $convenience~
 151       sed -e "1,/EXPORTS/d" -e "s/ @ [0-9]*//" -e "s/ *;.*$//" < $output_objdir/$soname-def > $export_symbols'
 152
 153     # If the export-symbols file already is a .def file (1st line
 154     # is EXPORTS), use it as is.
 155     # If DATA tags from a recent dlltool are present, honour them!
 156     archive_expsym_cmds='if test "x`head -1 $export_symbols`" = xEXPORTS; then
 157         cp $export_symbols $output_objdir/$soname-def;
 158       else
 159         echo EXPORTS > $output_objdir/$soname-def;
 160         _lt_hint=1;
 161         cat $export_symbols | while read symbol; do
 162          set dummy \$symbol;
 163          case \[$]# in
 164            2) echo "   \[$]2 @ \$_lt_hint ; " >> $output_objdir/$soname-def;;
 165            *) echo "     \[$]2 @ \$_lt_hint \[$]3 ; " >> $output_objdir/$soname-def;;
 166          esac;
 167          _lt_hint=`expr 1 + \$_lt_hint`;
 168         done;
 169       fi~
 170       '"$ltdll_cmds"'
 171       $CC -Wl,--base-file,$output_objdir/$soname-base '$lt_cv_cc_dll_switch' -Wl,-e,'$dll_entry' -o $output_objdir/$soname '$ltdll_obj'$libobjs $deplibs $compiler_flags~
 172       $DLLTOOL --as=$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~
 173       $CC -Wl,--base-file,$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~
 174       $DLLTOOL --as=$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~
 175       $CC $output_objdir/$soname-exp '$lt_cv_cc_dll_switch' -Wl,-e,'$dll_entry' -o $output_objdir/$soname '$ltdll_obj'$libobjs $deplibs $compiler_flags'
 176     ;;
 177
 178   netbsd*)
 179     if echo __ELF__ | $CC -E - | grep __ELF__ >/dev/null; then
 180       archive_cmds='$LD -Bshareable $libobjs $deplibs $linker_flags -o $lib'
 181       wlarc=
 182     else
 183       archive_cmds='$CC -shared -nodefaultlibs $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
 184       archive_expsym_cmds='$CC -shared -nodefaultlibs $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
 185     fi
 186     ;;
 187
 188   solaris* | sysv5*)
 189     if $LD -v 2>&1 | egrep 'BFD 2\.8' > /dev/null; then
 190       ld_shlibs=no
 191       cat <<EOF 1>&2
 192
 193 *** Warning: The releases 2.8.* of the GNU linker cannot reliably
 194 *** create shared libraries on Solaris systems.  Therefore, libtool
 195 *** is disabling shared libraries support.  We urge you to upgrade GNU
 196 *** binutils to release 2.9.1 or newer.  Another option is to modify
 197 *** your PATH or compiler configuration so that the native linker is
 198 *** used, and then restart.
 199
 200 EOF
 201     elif $LD --help 2>&1 | egrep ': supported targets:.* elf' > /dev/null; then
 202       archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
 203       archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
 204     else
 205       ld_shlibs=no
 206     fi
 207     ;;
 208
 209   sunos4*)
 210     archive_cmds='$LD -assert pure-text -Bshareable -o $lib $libobjs $deplibs $linker_flags'
 211     wlarc=
 212     hardcode_direct=yes
 213     hardcode_shlibpath_var=no
 214     ;;
 215
 216   *)
 217     if $LD --help 2>&1 | egrep ': supported targets:.* elf' > /dev/null; then
 218       archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
 219       archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
 220     else
 221       ld_shlibs=no
 222     fi
 223     ;;
 224   esac
 225
 226   if test "$ld_shlibs" = yes; then
 227     runpath_var=LD_RUN_PATH
 228     hardcode_libdir_flag_spec='${wl}--rpath ${wl}$libdir'
 229     export_dynamic_flag_spec='${wl}--export-dynamic'
 230     case $host_os in
 231     cygwin* | mingw*)
 232       # dlltool doesn't understand --whole-archive et. al.
 233       whole_archive_flag_spec=
 234       ;;
 235     *)
 236       # ancient GNU ld didn't support --whole-archive et. al.
 237       if $LD --help 2>&1 | egrep 'no-whole-archive' > /dev/null; then
 238         whole_archive_flag_spec="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
 239       else
 240         whole_archive_flag_spec=
 241       fi
 242       ;;
 243     esac
 244   fi
 245 else
 246   # PORTME fill in a description of your system's linker (not GNU ld)
 247   case $host_os in
 248   aix3*)
 249     allow_undefined_flag=unsupported
 250     always_export_symbols=yes
 251     archive_expsym_cmds='$LD -o $output_objdir/$soname $libobjs $deplibs $linker_flags -bE:$export_symbols -T512 -H512 -bM:SRE~$AR $AR_FLAGS $lib $output_objdir/$soname'
 252     # Note: this linker hardcodes the directories in LIBPATH if there
 253     # are no directories specified by -L.
 254     hardcode_minus_L=yes
 255     if test "$with_gcc" = yes && test -z "$link_static_flag"; then
 256       # Neither direct hardcoding nor static linking is supported with a
 257       # broken collect2.
 258       hardcode_direct=unsupported
 259     fi
 260     ;;
 261
 262   aix4* | aix5*)
 263     hardcode_direct=yes
 264     hardcode_libdir_separator=':'
 265     link_all_deplibs=yes
 266     # When large executables or shared objects are built, AIX ld can
 267     # have problems creating the table of contents.  If linking a library
 268     # or program results in "error TOC overflow" add -mminimal-toc to
 269     # CXXFLAGS/CFLAGS for g++/gcc.  In the cases where that is not
 270     # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
 271     if test "$with_gcc" = yes; then
 272       case $host_os in aix4.[012]|aix4.[012].*)
 273       # We only want to do this on AIX 4.2 and lower, the check
 274       # below for broken collect2 doesn't work under 4.3+
 275         collect2name=`${CC} -print-prog-name=collect2`
 276         if test -f "$collect2name" && \
 277            strings "$collect2name" | grep resolve_lib_name >/dev/null
 278         then
 279           # We have reworked collect2
 280           hardcode_direct=yes
 281         else
 282           # We have old collect2
 283           hardcode_direct=unsupported
 284           # It fails to find uninstalled libraries when the uninstalled
 285           # path is not listed in the libpath.  Setting hardcode_minus_L
 286           # to unsupported forces relinking
 287           hardcode_minus_L=yes
 288           hardcode_libdir_flag_spec='-L$libdir'
 289           hardcode_libdir_separator=
 290         fi
 291       esac
 292       shared_flag='-shared'
 293     else
 294       # not using gcc
 295       if test "$host_cpu" = ia64; then
 296         shared_flag='${wl}-G'
 297       else
 298         shared_flag='${wl}-bM:SRE'
 299       fi
 300     fi
 301
 302     if test "$host_cpu" = ia64; then
 303       # On IA64, the linker does run time linking by default, so we don't
 304       # have to do anything special.
 305       aix_use_runtimelinking=no
 306       if test $with_gnu_ld = no; then
 307         exp_sym_flag='-Bexport'
 308         no_entry_flag=""
 309       fi
 310     else
 311       # Test if we are trying to use run time linking, or normal AIX style linking.
 312       # If -brtl is somewhere in LDFLAGS, we need to do run time linking.
 313       aix_use_runtimelinking=no
 314       for ld_flag in $LDFLAGS; do
 315         if (test $ld_flag = "-brtl" || test $ld_flag = "-Wl,-brtl" ); then
 316           aix_use_runtimelinking=yes
 317           break
 318         fi
 319       done
 320       exp_sym_flag='-bexport'
 321       no_entry_flag='-bnoentry'
 322     fi
 323     # -bexpall does not export symbols beginning with underscore (_)
 324     always_export_symbols=yes
 325     if test "$aix_use_runtimelinking" = yes; then
 326       # Warning - without using the other run time loading flags (-brtl), -berok will
 327       #           link without error, but may produce a broken library.
 328       allow_undefined_flag=' ${wl}-berok'
 329       hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:/usr/lib:/lib'
 330       archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${allow_undefined_flag} '"\${wl}$no_entry_flag \${wl}$exp_sym_flag:\$export_symbols"
 331     else
 332       if test "$host_cpu" = ia64; then
 333         if test $with_gnu_ld = no; then
 334           hardcode_libdir_flag_spec='${wl}-R $libdir:/usr/lib:/lib'
 335           allow_undefined_flag="-z nodefs"
 336           archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${wl}${allow_undefined_flag} '"\${wl}$no_entry_flag \${wl}$exp_sym_flag:\$export_symbols"
 337         fi
 338       else
 339         allow_undefined_flag=' ${wl}-berok'
 340         # -bexpall does not export symbols beginning with underscore (_)
 341         always_export_symbols=yes
 342         # Exported symbols can be pulled into shared objects from archives
 343         whole_archive_flag_spec=' '
 344         build_libtool_need_lc=yes
 345         hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:/usr/lib:/lib'
 346         # This is similar to how AIX traditionally builds it's shared libraries.
 347         archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${wl}-bE:$export_symbols ${wl}-bnoentry${allow_undefined_flag}~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$soname'
 348       fi
 349     fi
 350     ;;
 351
 352   amigaos*)
 353     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 $output_objdir && a2ixlibrary -32)'
 354     hardcode_libdir_flag_spec='-L$libdir'
 355     hardcode_minus_L=yes
 356     # see comment about different semantics on the GNU ld section
 357     ld_shlibs=no
 358     ;;
 359
 360   cygwin* | mingw*)
 361     # When not using gcc, we currently assume that we are using
 362     # Microsoft Visual C++.
 363     # hardcode_libdir_flag_spec is actually meaningless, as there is
 364     # no search path for DLLs.
 365     hardcode_libdir_flag_spec=' '
 366     allow_undefined_flag=unsupported
 367     # Tell ltmain to make .lib files, not .a files.
 368     libext=lib
 369     # FIXME: Setting linknames here is a bad hack.
 370     archive_cmds='$CC -o $lib $libobjs $compiler_flags `echo "$deplibs" | sed -e '\''s/ -lc$//'\''` -link -dll~linknames='
 371     # The linker will automatically build a .lib file if we build a DLL.
 372     old_archive_from_new_cmds='true'
 373     # FIXME: Should let the user specify the lib program.
 374     old_archive_cmds='lib /OUT:$oldlib$oldobjs$old_deplibs'
 375     fix_srcfile_path='`cygpath -w "$srcfile"`'
 376     ;;
 377
 378   darwin* | rhapsody*)
 379     case "$host_os" in
 380     rhapsody* | darwin1.[[012]])
 381         allow_undefined_flag='-undefined suppress'
 382         ;;
 383     *) # Darwin 1.3 on
 384     if test -z ${MACOSX_DEPLOYMENT_TARGET} ; then
 385        allow_undefined_flag='-flat_namespace -undefined suppress'
 386     else
 387         case ${MACOSX_DEPLOYMENT_TARGET} in
 388             10.[[012]])
 389                 allow_undefined_flag='-flat_namespace -undefined suppress'
 390                 ;;
 391             10.*)
 392                 allow_undefined_flag='-undefined dynamic_lookup'
 393                 ;;
 394         esac
 395     fi
 396     ;;
 397     esac
 398     # Disable shared library build on OS-X older than 10.3.
 399     case $host_os in
 400         darwin[1-6]*)
 401             can_build_shared=no
 402             ;;
 403         darwin7*)
 404             can_build_shared=yes
 405             ;;
 406     esac
 407     output_verbose_link_cmd='echo'
 408     archive_cmds='$CC -dynamiclib $allow_undefined_flag -o $lib $libobjs $deplibs$compiler_flags -install_name $rpath/$soname $verstring'
 409     module_cmds='$CC $allow_undefined_flag -o $lib -bundle $libobjs $deplibs$compiler_flags'
 410     # Don't fix this by using the ld -exported_symbols_list flag,
 411     # it doesn't exist in older darwin ld's
 412     archive_expsym_cmds='sed -e "s,#.*,," -e "s,^[    ]*,," -e "s,^\(..*\),_&," < $export_symbols > $output_objdir/${libname}-symbols.expsym~$CC -dynamiclib $allow_undefined_flag  -o $lib $libobjs $deplibs$compiler_flags -install_name $rpath/$soname $verstring~nmedit -s $output_objdir/${libname}-symbols.expsym ${lib}'
 413     module_expsym_cmds='sed -e "s,#.*,," -e "s,^[    ]*,," -e "s,^\(..*\),_&," < $export_symbols > $output_objdir/${libname}-symbols.expsym~$CC $allow_undefined_flag  -o $lib -bundle $libobjs $deplibs$compiler_flags~nmedit -s $output_objdir/${libname}-symbols.expsym ${lib}'
 414     hardcode_direct=no
 415     hardcode_automatic=yes
 416     hardcode_shlibpath_var=unsupported
 417     whole_archive_flag_spec='-all_load $convenience'
 418     link_all_deplibs=yes
 419     ;;
 420
 421   freebsd1*)
 422   ld_shlibs=no
 423   ;;
 424
 425   # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor
 426   # support.  Future versions do this automatically, but an explicit c++rt0.o
 427   # does not break anything, and helps significantly (at the cost of a little
 428   # extra space).
 429   freebsd2.2*)
 430     archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags /usr/lib/c++rt0.o'
 431     hardcode_libdir_flag_spec='-R$libdir'
 432     hardcode_direct=yes
 433     hardcode_shlibpath_var=no
 434     ;;
 435
 436   # Unfortunately, older versions of FreeBSD 2 do not have this feature.
 437   freebsd2*)
 438     archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
 439     hardcode_direct=yes
 440     hardcode_minus_L=yes
 441     hardcode_shlibpath_var=no
 442     ;;
 443
 444   # FreeBSD 3 and greater uses gcc -shared to do shared libraries.
 445   freebsd*)
 446     archive_cmds='$CC -shared -o $lib $libobjs $deplibs $compiler_flags'
 447     hardcode_libdir_flag_spec='-R$libdir'
 448     hardcode_direct=yes
 449     hardcode_shlibpath_var=no
 450     ;;
 451
 452   hpux9* | hpux10* | hpux11*)
 453     case "$host_cpu" in
 454     ia64*)
 455       hardcode_direct=no
 456       hardcode_shlibpath_var=no
 457       archive_cmds='$LD -b +h $soname -o $lib $libobjs $deplibs $linker_flags'
 458       hardcode_libdir_flag_spec='-L$libdir' ;;
 459     *)
 460       if test $with_gcc = yes; then
 461         case "$host_os" in
 462         hpux9*) archive_cmds='$rm $output_objdir/$soname~$CC -shared -fPIC ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $libobjs $deplibs $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib' ;;
 463         *) archive_cmds='$CC -shared -fPIC ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags' ;;
 464         esac
 465       else
 466         case $host_os in
 467         hpux9*) archive_cmds='$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 $lib' ;;
 468         *) archive_cmds='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags' ;;
 469         esac
 470       fi
 471       hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
 472       hardcode_libdir_separator=:
 473       hardcode_minus_L=yes # Not in the search PATH, but as the default
 474                            # location of the library.
 475       ;;
 476     esac
 477     export_dynamic_flag_spec='${wl}-E'
 478     hardcode_direct=yes
 479     ;;
 480
 481   irix5* | irix6*)
 482     if test "$with_gcc" = yes; then
 483       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 $lib'
 484     else
 485       archive_cmds='$LD -shared $libobjs $deplibs $linker_flags -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${objdir}/so_locations -o $lib'
 486     fi
 487     hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 488     hardcode_libdir_separator=:
 489     link_all_deplibs=yes
 490     ;;
 491
 492   netbsd*)
 493     if echo __ELF__ | $CC -E - | grep __ELF__ >/dev/null; then
 494       archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'  # a.out
 495     else
 496       archive_cmds='$LD -shared -o $lib $libobjs $deplibs $linker_flags'      # ELF
 497     fi
 498     hardcode_libdir_flag_spec='-R$libdir'
 499     hardcode_direct=yes
 500     hardcode_shlibpath_var=no
 501     ;;
 502
 503   newsos6)
 504     archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linkopts'
 505     hardcode_direct=yes
 506     hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 507     hardcode_libdir_separator=:
 508     hardcode_shlibpath_var=no
 509     ;;
 510
 511   openbsd*)
 512     archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
 513     hardcode_libdir_flag_spec='-R$libdir'
 514     hardcode_direct=yes
 515     hardcode_shlibpath_var=no
 516     ;;
 517
 518   os2*)
 519     hardcode_libdir_flag_spec='-L$libdir'
 520     hardcode_minus_L=yes
 521     allow_undefined_flag=unsupported
 522     archive_cmds='$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'
 523     old_archive_from_new_cmds='emximp -o $output_objdir/$libname.a $output_objdir/$libname.def'
 524     ;;
 525
 526   osf3*)
 527     if test "$with_gcc" = yes; then
 528       allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
 529       archive_cmds='$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 $lib'
 530     else
 531       allow_undefined_flag=' -expect_unresolved \*'
 532       archive_cmds='$LD -shared${allow_undefined_flag} $libobjs $deplibs $linker_flags -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${objdir}/so_locations -o $lib'
 533     fi
 534     hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 535     hardcode_libdir_separator=:
 536     ;;
 537
 538   osf4* | osf5*)        # as osf3* with the addition of -msym flag
 539     if test "$with_gcc" = yes; then
 540       allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
 541       archive_cmds='$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 $lib'
 542       hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 543     else
 544       allow_undefined_flag=' -expect_unresolved \*'
 545       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'
 546       archive_expsym_cmds='for i in `cat $export_symbols`; do printf "-exported_symbol " >> $lib.exp; echo "\$i" >> $lib.exp; done; echo "-hidden">> $lib.exp~
 547       $LD -shared${allow_undefined_flag} -input $lib.exp $linker_flags $libobjs $deplibs -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${objdir}/so_locations -o $lib~$rm $lib.exp'
 548
 549       # cc supports -rpath directly
 550       hardcode_libdir_flag_spec='-rpath $libdir'
 551     fi
 552     hardcode_libdir_separator=:
 553     ;;
 554
 555   sco3.2v5*)
 556     archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
 557     hardcode_shlibpath_var=no
 558     runpath_var=LD_RUN_PATH
 559     hardcode_runpath_var=yes
 560     ;;
 561
 562   solaris*)
 563     no_undefined_flag=' -z defs'
 564     if test "$with_gcc" = yes; then
 565       archive_cmds='$CC -shared ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
 566       archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
 567                   $CC -shared ${wl}-M ${wl}$lib.exp ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags~$rm $lib.exp'
 568     else
 569       archive_cmds='$LD -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $linker_flags'
 570       archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
 571                   $LD -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$rm $lib.exp'
 572     fi
 573     hardcode_libdir_flag_spec='-R$libdir'
 574     hardcode_shlibpath_var=no
 575     case $host_os in
 576     solaris2.[0-5] | solaris2.[0-5].*) ;;
 577     *) # Supported since Solaris 2.6 (maybe 2.5.1?)
 578       whole_archive_flag_spec='-z allextract$convenience -z defaultextract' ;;
 579     esac
 580     link_all_deplibs=yes
 581     ;;
 582
 583   sunos4*)
 584     archive_cmds='$LD -assert pure-text -Bstatic -o $lib $libobjs $deplibs $linker_flags'
 585     hardcode_libdir_flag_spec='-L$libdir'
 586     hardcode_direct=yes
 587     hardcode_minus_L=yes
 588     hardcode_shlibpath_var=no
 589     ;;
 590
 591   sysv4)
 592     archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
 593     runpath_var='LD_RUN_PATH'
 594     hardcode_shlibpath_var=no
 595     hardcode_direct=no #Motorola manual says yes, but my tests say they lie
 596     ;;
 597
 598   sysv4.3*)
 599     archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
 600     hardcode_shlibpath_var=no
 601     export_dynamic_flag_spec='-Bexport'
 602     ;;
 603
 604   sysv5*)
 605     no_undefined_flag=' -z text'
 606     # $CC -shared without GNU ld will not create a library from C++
 607     # object files and a static libstdc++, better avoid it by now
 608     archive_cmds='$LD -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $linker_flags'
 609     archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
 610                 $LD -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$rm $lib.exp'
 611     hardcode_libdir_flag_spec=
 612     hardcode_shlibpath_var=no
 613     runpath_var='LD_RUN_PATH'
 614     ;;
 615
 616   uts4*)
 617     archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
 618     hardcode_libdir_flag_spec='-L$libdir'
 619     hardcode_shlibpath_var=no
 620     ;;
 621
 622   dgux*)
 623     archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
 624     hardcode_libdir_flag_spec='-L$libdir'
 625     hardcode_shlibpath_var=no
 626     ;;
 627
 628   sysv4*MP*)
 629     if test -d /usr/nec; then
 630       archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
 631       hardcode_shlibpath_var=no
 632       runpath_var=LD_RUN_PATH
 633       hardcode_runpath_var=yes
 634       ld_shlibs=yes
 635     fi
 636     ;;
 637
 638   sysv4.2uw2*)
 639     archive_cmds='$LD -G -o $lib $libobjs $deplibs $linker_flags'
 640     hardcode_direct=yes
 641     hardcode_minus_L=no
 642     hardcode_shlibpath_var=no
 643     hardcode_runpath_var=yes
 644     runpath_var=LD_RUN_PATH
 645     ;;
 646
 647   sysv5uw7* | unixware7*)
 648     no_undefined_flag='${wl}-z ${wl}text'
 649     if test "$GCC" = yes; then
 650       archive_cmds='$CC -shared ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
 651     else
 652       archive_cmds='$CC -G ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
 653     fi
 654     runpath_var='LD_RUN_PATH'
 655     hardcode_shlibpath_var=no
 656     ;;
 657
 658   *)
 659     ld_shlibs=no
 660     ;;
 661   esac
 662 fi
 663
 664 ## Compiler Characteristics: PIC flags, static flags, etc
 665 if test "X${ac_cv_prog_cc_pic+set}" = Xset; then
 666   :
 667 else
 668   ac_cv_prog_cc_pic=
 669   ac_cv_prog_cc_shlib=
 670   ac_cv_prog_cc_wl=
 671   ac_cv_prog_cc_static=
 672   ac_cv_prog_cc_no_builtin=
 673   ac_cv_prog_cc_can_build_shared=$can_build_shared
 674
 675   if test "$with_gcc" = yes; then
 676     ac_cv_prog_cc_wl='-Wl,'
 677     ac_cv_prog_cc_static='-static'
 678
 679     case $host_os in
 680     aix*)
 681       # All AIX code is PIC.
 682       if test "$host_cpu" = ia64; then
 683         # AIX 5 now supports IA64 processor
 684         lt_cv_prog_cc_static='-Bstatic'
 685       else
 686         lt_cv_prog_cc_static='-bnso -bI:/lib/syscalls.exp'
 687       fi
 688       ;;
 689     amigaos*)
 690       # FIXME: we need at least 68020 code to build shared libraries, but
 691       # adding the `-m68020' flag to GCC prevents building anything better,
 692       # like `-m68040'.
 693       ac_cv_prog_cc_pic='-m68020 -resident32 -malways-restore-a4'
 694       ;;
 695     beos* | irix5* | irix6* | osf3* | osf4* | osf5*)
 696       # PIC is the default for these OSes.
 697       ;;
 698     cygwin* | mingw* | os2*)
 699       # This hack is so that the source file can tell whether it is being
 700       # built for inclusion in a dll (and should export symbols for example).
 701       ac_cv_prog_cc_pic='-DDLL_EXPORT'
 702       ;;
 703     darwin* | rhapsody*)
 704       # PIC is the default on this platform
 705       # Common symbols not allowed in MH_DYLIB files
 706       ac_cv_prog_cc_pic='-fno-common'
 707       ;;
 708     *djgpp*)
 709       # DJGPP does not support shared libraries at all
 710       ac_cv_prog_cc_pic=
 711       ;;
 712     sysv4*MP*)
 713       if test -d /usr/nec; then
 714          ac_cv_prog_cc_pic=-Kconform_pic
 715       fi
 716       ;;
 717     *)
 718       ac_cv_prog_cc_pic='-fPIC'
 719       ;;
 720     esac
 721   else
 722     # PORTME Check for PIC flags for the system compiler.
 723     case $host_os in
 724     aix*)
 725      # All AIX code is PIC.
 726       ac_cv_prog_cc_static="$ac_cv_prog_cc_static ${ac_cv_prog_cc_wl}-lC"
 727       ;;
 728
 729     hpux9* | hpux10* | hpux11*)
 730       # Is there a better ac_cv_prog_cc_static that works with the bundled CC?
 731       ac_cv_prog_cc_wl='-Wl,'
 732       ac_cv_prog_cc_static="${ac_cv_prog_cc_wl}-a ${ac_cv_prog_cc_wl}archive"
 733       ac_cv_prog_cc_pic='+Z'
 734       ;;
 735
 736     irix5* | irix6*)
 737       ac_cv_prog_cc_wl='-Wl,'
 738       ac_cv_prog_cc_static='-non_shared'
 739       # PIC (with -KPIC) is the default.
 740       ;;
 741
 742     cygwin* | mingw* | os2*)
 743       # This hack is so that the source file can tell whether it is being
 744       # built for inclusion in a dll (and should export symbols for example).
 745       ac_cv_prog_cc_pic='-DDLL_EXPORT'
 746       ;;
 747
 748     newsos6)
 749       ac_cv_prog_cc_pic='-KPIC'
 750       ac_cv_prog_cc_static='-Bstatic'
 751       ;;
 752
 753     osf3* | osf4* | osf5*)
 754       # All OSF/1 code is PIC.
 755       ac_cv_prog_cc_wl='-Wl,'
 756       ac_cv_prog_cc_static='-non_shared'
 757       ;;
 758
 759     sco3.2v5*)
 760       ac_cv_prog_cc_pic='-Kpic'
 761       ac_cv_prog_cc_static='-dn'
 762       ac_cv_prog_cc_shlib='-belf'
 763       ;;
 764
 765     solaris*)
 766       ac_cv_prog_cc_pic='-KPIC'
 767       ac_cv_prog_cc_static='-Bstatic'
 768       ac_cv_prog_cc_wl='-Wl,'
 769       ;;
 770
 771     sunos4*)
 772       ac_cv_prog_cc_pic='-PIC'
 773       ac_cv_prog_cc_static='-Bstatic'
 774       ac_cv_prog_cc_wl='-Qoption ld '
 775       ;;
 776
 777     sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
 778       ac_cv_prog_cc_pic='-KPIC'
 779       ac_cv_prog_cc_static='-Bstatic'
 780       ac_cv_prog_cc_wl='-Wl,'
 781       ;;
 782
 783     uts4*)
 784       ac_cv_prog_cc_pic='-pic'
 785       ac_cv_prog_cc_static='-Bstatic'
 786       ;;
 787
 788     sysv4*MP*)
 789       if test -d /usr/nec ;then
 790         ac_cv_prog_cc_pic='-Kconform_pic'
 791         ac_cv_prog_cc_static='-Bstatic'
 792       fi
 793       ;;
 794
 795     *)
 796       ac_cv_prog_cc_can_build_shared=no
 797       ;;
 798     esac
 799   fi
 800   case "$host_os" in
 801       # Platforms which do not suport PIC and -DPIC is meaningless
 802       # on them:
 803       *djgpp*)
 804         ac_cv_prog_cc_pic=
 805         ;;
 806       *)
 807         ac_cv_prog_cc_pic="$ac_cv_prog_cc_pic -DPIC"
 808         ;;
 809   esac
 810 fi
 811
 812 need_lc=yes
 813 if test "$enable_shared" = yes && test "$with_gcc" = yes; then
 814   case $archive_cmds in
 815   *'~'*)
 816     # FIXME: we may have to deal with multi-command sequences.
 817     ;;
 818   '$CC '*)
 819     # Test whether the compiler implicitly links with -lc since on some
 820     # systems, -lgcc has to come before -lc. If gcc already passes -lc
 821     # to ld, don't add -lc before -lgcc.
 822     echo $ac_n "checking whether -lc should be explicitly linked in... $ac_c" 1>&6
 823     if eval "test \"`echo '$''{'ac_cv_archive_cmds_needs_lc'+set}'`\" = set"; then
 824       echo $ac_n "(cached) $ac_c" 1>&6
 825       need_lc=$ac_cv_archive_cmds_needs_lc
 826     else
 827       $rm conftest*
 828       echo "static int dummy;" > conftest.$ac_ext
 829       if { (eval echo ltcf-c.sh:need_lc: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>conftest.err; }; then
 830         # Append any warnings to the config.log.
 831         cat conftest.err 1>&5
 832         soname=conftest
 833         lib=conftest
 834         libobjs=conftest.$objext
 835         deplibs=
 836         wl=$ac_cv_prog_cc_wl
 837         compiler_flags=-v
 838         linker_flags=-v
 839         verstring=
 840         output_objdir=.
 841         libname=conftest
 842         save_allow_undefined_flag=$allow_undefined_flag
 843         allow_undefined_flag=
 844         if { (eval echo ltcf-c.sh:need_lc: \"$archive_cmds\") 1>&5; (eval $archive_cmds) 2>&1 | grep " -lc " 1>&5 ; }; then
 845           need_lc=no
 846         fi
 847         allow_undefined_flag=$save_allow_undefined_flag
 848       else
 849         cat conftest.err 1>&5
 850       fi
 851     fi
 852     $rm conftest*
 853     echo "$ac_t$need_lc" 1>&6
 854     ;;
 855   esac
 856 fi
 857 ac_cv_archive_cmds_needs_lc=$need_lc