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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 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* | knetbsd*-gnu)
 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   tpf*)
 217     ld_shlibs=yes
 218     ;;
 219
 220   *)
 221     if $LD --help 2>&1 | egrep ': supported targets:.* elf' > /dev/null; then
 222       archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
 223       archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
 224     else
 225       ld_shlibs=no
 226     fi
 227     ;;
 228   esac
 229
 230   if test "$ld_shlibs" = yes; then
 231     runpath_var=LD_RUN_PATH
 232     hardcode_libdir_flag_spec='${wl}--rpath ${wl}$libdir'
 233     export_dynamic_flag_spec='${wl}--export-dynamic'
 234     case $host_os in
 235     cygwin* | mingw*)
 236       # dlltool doesn't understand --whole-archive et. al.
 237       whole_archive_flag_spec=
 238       ;;
 239     *)
 240       # ancient GNU ld didn't support --whole-archive et. al.
 241       if $LD --help 2>&1 | egrep 'no-whole-archive' > /dev/null; then
 242         whole_archive_flag_spec="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
 243       else
 244         whole_archive_flag_spec=
 245       fi
 246       ;;
 247     esac
 248   fi
 249 else
 250   # PORTME fill in a description of your system's linker (not GNU ld)
 251   case $host_os in
 252   aix3*)
 253     allow_undefined_flag=unsupported
 254     always_export_symbols=yes
 255     archive_expsym_cmds='$LD -o $output_objdir/$soname $libobjs $deplibs $linker_flags -bE:$export_symbols -T512 -H512 -bM:SRE~$AR $AR_FLAGS $lib $output_objdir/$soname'
 256     # Note: this linker hardcodes the directories in LIBPATH if there
 257     # are no directories specified by -L.
 258     hardcode_minus_L=yes
 259     if test "$with_gcc" = yes && test -z "$link_static_flag"; then
 260       # Neither direct hardcoding nor static linking is supported with a
 261       # broken collect2.
 262       hardcode_direct=unsupported
 263     fi
 264     ;;
 265
 266   aix4* | aix5*)
 267     hardcode_direct=yes
 268     hardcode_libdir_separator=':'
 269     link_all_deplibs=yes
 270     file_list_spec='${wl}-f,'
 271     # When large executables or shared objects are built, AIX ld can
 272     # have problems creating the table of contents.  If linking a library
 273     # or program results in "error TOC overflow" add -mminimal-toc to
 274     # CXXFLAGS/CFLAGS for g++/gcc.  In the cases where that is not
 275     # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
 276     if test "$with_gcc" = yes; then
 277       case $host_os in aix4.[012]|aix4.[012].*)
 278       # We only want to do this on AIX 4.2 and lower, the check
 279       # below for broken collect2 doesn't work under 4.3+
 280         collect2name=`${CC} -print-prog-name=collect2`
 281         if test -f "$collect2name" && \
 282            strings "$collect2name" | grep resolve_lib_name >/dev/null
 283         then
 284           # We have reworked collect2
 285           hardcode_direct=yes
 286         else
 287           # We have old collect2
 288           hardcode_direct=unsupported
 289           # It fails to find uninstalled libraries when the uninstalled
 290           # path is not listed in the libpath.  Setting hardcode_minus_L
 291           # to unsupported forces relinking
 292           hardcode_minus_L=yes
 293           hardcode_libdir_flag_spec='-L$libdir'
 294           hardcode_libdir_separator=
 295         fi
 296       esac
 297       shared_flag='-shared'
 298     else
 299       # not using gcc
 300       if test "$host_cpu" = ia64; then
 301         shared_flag='${wl}-G'
 302       else
 303         shared_flag='${wl}-bM:SRE'
 304       fi
 305     fi
 306
 307     if test "$host_cpu" = ia64; then
 308       # On IA64, the linker does run time linking by default, so we don't
 309       # have to do anything special.
 310       aix_use_runtimelinking=no
 311       if test $with_gnu_ld = no; then
 312         exp_sym_flag='-Bexport'
 313         no_entry_flag=""
 314       fi
 315     else
 316       # Test if we are trying to use run time linking, or normal AIX style linking.
 317       # If -brtl is somewhere in LDFLAGS, we need to do run time linking.
 318       aix_use_runtimelinking=no
 319       for ld_flag in $LDFLAGS; do
 320         if (test $ld_flag = "-brtl" || test $ld_flag = "-Wl,-brtl" ); then
 321           aix_use_runtimelinking=yes
 322           break
 323         fi
 324       done
 325       exp_sym_flag='-bexport'
 326       no_entry_flag='-bnoentry'
 327     fi
 328     # -bexpall does not export symbols beginning with underscore (_)
 329     always_export_symbols=yes
 330     if test "$aix_use_runtimelinking" = yes; then
 331       # Warning - without using the other run time loading flags (-brtl), -berok will
 332       #           link without error, but may produce a broken library.
 333       allow_undefined_flag=' ${wl}-berok'
 334       hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:/usr/lib:/lib'
 335       archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${allow_undefined_flag} '"\${wl}$no_entry_flag \${wl}$exp_sym_flag:\$export_symbols"
 336     else
 337       if test "$host_cpu" = ia64; then
 338         if test $with_gnu_ld = no; then
 339           hardcode_libdir_flag_spec='${wl}-R $libdir:/usr/lib:/lib'
 340           allow_undefined_flag="-z nodefs"
 341           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"
 342         fi
 343       else
 344         allow_undefined_flag=' ${wl}-berok'
 345         # -bexpall does not export symbols beginning with underscore (_)
 346         always_export_symbols=yes
 347         # Exported symbols can be pulled into shared objects from archives
 348         whole_archive_flag_spec=' '
 349         build_libtool_need_lc=yes
 350         hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:/usr/lib:/lib'
 351         # This is similar to how AIX traditionally builds it's shared libraries.
 352         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'
 353       fi
 354     fi
 355     ;;
 356
 357   amigaos*)
 358     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 $output_objdir && a2ixlibrary -32)'
 359     hardcode_libdir_flag_spec='-L$libdir'
 360     hardcode_minus_L=yes
 361     # see comment about different semantics on the GNU ld section
 362     ld_shlibs=no
 363     ;;
 364
 365   cygwin* | mingw*)
 366     # When not using gcc, we currently assume that we are using
 367     # Microsoft Visual C++.
 368     # hardcode_libdir_flag_spec is actually meaningless, as there is
 369     # no search path for DLLs.
 370     hardcode_libdir_flag_spec=' '
 371     allow_undefined_flag=unsupported
 372     # Tell ltmain to make .lib files, not .a files.
 373     libext=lib
 374     # FIXME: Setting linknames here is a bad hack.
 375     archive_cmds='$CC -o $lib $libobjs $compiler_flags `echo "$deplibs" | sed -e '\''s/ -lc$//'\''` -link -dll~linknames='
 376     # The linker will automatically build a .lib file if we build a DLL.
 377     old_archive_from_new_cmds='true'
 378     # FIXME: Should let the user specify the lib program.
 379     old_archive_cmds='lib /OUT:$oldlib$oldobjs$old_deplibs'
 380     fix_srcfile_path='`cygpath -w "$srcfile"`'
 381     ;;
 382
 383   darwin* | rhapsody*)
 384     case "$host_os" in
 385     rhapsody* | darwin1.[[012]])
 386         allow_undefined_flag='-undefined suppress'
 387         ;;
 388     *) # Darwin 1.3 on
 389     if test -z ${MACOSX_DEPLOYMENT_TARGET} ; then
 390        allow_undefined_flag='-flat_namespace -undefined suppress'
 391     else
 392         case ${MACOSX_DEPLOYMENT_TARGET} in
 393             10.[[012]])
 394                 allow_undefined_flag='-flat_namespace -undefined suppress'
 395                 ;;
 396             10.*)
 397                 allow_undefined_flag='-undefined dynamic_lookup'
 398                 ;;
 399         esac
 400     fi
 401     ;;
 402     esac
 403     # Disable shared library build on OS-X older than 10.3.
 404     case $host_os in
 405         darwin[1-6]*)
 406             can_build_shared=no
 407             ;;
 408         darwin7*)
 409             can_build_shared=yes
 410             ;;
 411     esac
 412     output_verbose_link_cmd='echo'
 413     archive_cmds='$CC -dynamiclib $allow_undefined_flag -o $lib $libobjs $deplibs$compiler_flags -install_name $rpath/$soname $verstring'
 414     module_cmds='$CC $allow_undefined_flag -o $lib -bundle $libobjs $deplibs$compiler_flags'
 415     # Don't fix this by using the ld -exported_symbols_list flag,
 416     # it doesn't exist in older darwin ld's
 417     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}'
 418     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 ${lib}'
 419     hardcode_direct=no
 420     hardcode_automatic=yes
 421     hardcode_shlibpath_var=unsupported
 422     whole_archive_flag_spec=''
 423     link_all_deplibs=yes
 424     ;;
 425
 426   freebsd1*)
 427   ld_shlibs=no
 428   ;;
 429
 430   # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor
 431   # support.  Future versions do this automatically, but an explicit c++rt0.o
 432   # does not break anything, and helps significantly (at the cost of a little
 433   # extra space).
 434   freebsd2.2*)
 435     archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags /usr/lib/c++rt0.o'
 436     hardcode_libdir_flag_spec='-R$libdir'
 437     hardcode_direct=yes
 438     hardcode_shlibpath_var=no
 439     ;;
 440
 441   # Unfortunately, older versions of FreeBSD 2 do not have this feature.
 442   freebsd2*)
 443     archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
 444     hardcode_direct=yes
 445     hardcode_minus_L=yes
 446     hardcode_shlibpath_var=no
 447     ;;
 448
 449   # FreeBSD 3 and greater uses gcc -shared to do shared libraries.
 450   freebsd* | kfreebsd*-gnu)
 451     archive_cmds='$CC -shared -o $lib $libobjs $deplibs $compiler_flags'
 452     hardcode_libdir_flag_spec='-R$libdir'
 453     hardcode_direct=yes
 454     hardcode_shlibpath_var=no
 455     ;;
 456
 457   hpux9* | hpux10* | hpux11*)
 458     case "$host_cpu" in
 459     ia64*)
 460       hardcode_direct=no
 461       hardcode_shlibpath_var=no
 462       archive_cmds='$LD -b +h $soname -o $lib $libobjs $deplibs $linker_flags'
 463       hardcode_libdir_flag_spec='-L$libdir' ;;
 464     *)
 465       if test $with_gcc = yes; then
 466         case "$host_os" in
 467         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 $lib' ;;
 468         *) archive_cmds='$CC -shared -fPIC ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags' ;;
 469         esac
 470       else
 471         case $host_os in
 472         hpux9*) archive_cmds='$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 $lib' ;;
 473         *) archive_cmds='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags' ;;
 474         esac
 475       fi
 476       hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
 477       hardcode_libdir_separator=:
 478       hardcode_minus_L=yes # Not in the search PATH, but as the default
 479                            # location of the library.
 480       ;;
 481     esac
 482     export_dynamic_flag_spec='${wl}-E'
 483     hardcode_direct=yes
 484     ;;
 485
 486   irix5* | irix6*)
 487     if test "$with_gcc" = yes; then
 488       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 $lib'
 489     else
 490       archive_cmds='$LD -shared $libobjs $deplibs $linker_flags -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${objdir}/so_locations -o $lib'
 491     fi
 492     hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 493     hardcode_libdir_separator=:
 494     link_all_deplibs=yes
 495     ;;
 496
 497   netbsd* | knetbsd*-gnu)
 498     if echo __ELF__ | $CC -E - | grep __ELF__ >/dev/null; then
 499       archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'  # a.out
 500     else
 501       archive_cmds='$LD -shared -o $lib $libobjs $deplibs $linker_flags'      # ELF
 502     fi
 503     hardcode_libdir_flag_spec='-R$libdir'
 504     hardcode_direct=yes
 505     hardcode_shlibpath_var=no
 506     ;;
 507
 508   newsos6)
 509     archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linkopts'
 510     hardcode_direct=yes
 511     hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 512     hardcode_libdir_separator=:
 513     hardcode_shlibpath_var=no
 514     ;;
 515
 516   openbsd*)
 517     archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
 518     hardcode_libdir_flag_spec='-R$libdir'
 519     hardcode_direct=yes
 520     hardcode_shlibpath_var=no
 521     ;;
 522
 523   os2*)
 524     hardcode_libdir_flag_spec='-L$libdir'
 525     hardcode_minus_L=yes
 526     allow_undefined_flag=unsupported
 527     archive_cmds='$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'
 528     old_archive_from_new_cmds='emximp -o $output_objdir/$libname.a $output_objdir/$libname.def'
 529     ;;
 530
 531   osf3*)
 532     if test "$with_gcc" = yes; then
 533       allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
 534       archive_cmds='$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 $lib'
 535     else
 536       allow_undefined_flag=' -expect_unresolved \*'
 537       archive_cmds='$LD -shared${allow_undefined_flag} $libobjs $deplibs $linker_flags -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${objdir}/so_locations -o $lib'
 538     fi
 539     hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 540     hardcode_libdir_separator=:
 541     ;;
 542
 543   osf4* | osf5*)        # as osf3* with the addition of -msym flag
 544     if test "$with_gcc" = yes; then
 545       allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
 546       archive_cmds='$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 $lib'
 547       hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 548     else
 549       allow_undefined_flag=' -expect_unresolved \*'
 550       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'
 551       archive_expsym_cmds='for i in `cat $export_symbols`; do printf "-exported_symbol " >> $lib.exp; echo "\$i" >> $lib.exp; done; echo "-hidden">> $lib.exp~
 552       $LD -shared${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'
 553
 554       # cc supports -rpath directly
 555       hardcode_libdir_flag_spec='-rpath $libdir'
 556     fi
 557     hardcode_libdir_separator=:
 558     ;;
 559
 560   sco3.2v5*)
 561     archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
 562     hardcode_shlibpath_var=no
 563     runpath_var=LD_RUN_PATH
 564     hardcode_runpath_var=yes
 565     ;;
 566
 567   solaris*)
 568     no_undefined_flag=' -z defs'
 569     if test "$with_gcc" = yes; then
 570       archive_cmds='$CC -shared ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
 571       archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
 572                   $CC -shared ${wl}-M ${wl}$lib.exp ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags~$rm $lib.exp'
 573     else
 574       archive_cmds='$LD -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $linker_flags'
 575       archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
 576                   $LD -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$rm $lib.exp'
 577     fi
 578     hardcode_libdir_flag_spec='-R$libdir'
 579     hardcode_shlibpath_var=no
 580     case $host_os in
 581     solaris2.[0-5] | solaris2.[0-5].*) ;;
 582     *) # Supported since Solaris 2.6 (maybe 2.5.1?)
 583       whole_archive_flag_spec='-z allextract$convenience -z defaultextract' ;;
 584     esac
 585     link_all_deplibs=yes
 586     ;;
 587
 588   sunos4*)
 589     archive_cmds='$LD -assert pure-text -Bstatic -o $lib $libobjs $deplibs $linker_flags'
 590     hardcode_libdir_flag_spec='-L$libdir'
 591     hardcode_direct=yes
 592     hardcode_minus_L=yes
 593     hardcode_shlibpath_var=no
 594     ;;
 595
 596   sysv4)
 597     archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
 598     runpath_var='LD_RUN_PATH'
 599     hardcode_shlibpath_var=no
 600     hardcode_direct=no #Motorola manual says yes, but my tests say they lie
 601     ;;
 602
 603   sysv4.3*)
 604     archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
 605     hardcode_shlibpath_var=no
 606     export_dynamic_flag_spec='-Bexport'
 607     ;;
 608
 609   sysv5*)
 610     no_undefined_flag=' -z text'
 611     # $CC -shared without GNU ld will not create a library from C++
 612     # object files and a static libstdc++, better avoid it by now
 613     archive_cmds='$LD -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $linker_flags'
 614     archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
 615                 $LD -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$rm $lib.exp'
 616     hardcode_libdir_flag_spec=
 617     hardcode_shlibpath_var=no
 618     runpath_var='LD_RUN_PATH'
 619     ;;
 620
 621   uts4*)
 622     archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
 623     hardcode_libdir_flag_spec='-L$libdir'
 624     hardcode_shlibpath_var=no
 625     ;;
 626
 627   dgux*)
 628     archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
 629     hardcode_libdir_flag_spec='-L$libdir'
 630     hardcode_shlibpath_var=no
 631     ;;
 632
 633   sysv4*MP*)
 634     if test -d /usr/nec; then
 635       archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
 636       hardcode_shlibpath_var=no
 637       runpath_var=LD_RUN_PATH
 638       hardcode_runpath_var=yes
 639       ld_shlibs=yes
 640     fi
 641     ;;
 642
 643   sysv4.2uw2*)
 644     archive_cmds='$LD -G -o $lib $libobjs $deplibs $linker_flags'
 645     hardcode_direct=yes
 646     hardcode_minus_L=no
 647     hardcode_shlibpath_var=no
 648     hardcode_runpath_var=yes
 649     runpath_var=LD_RUN_PATH
 650     ;;
 651
 652   sysv5uw7* | unixware7*)
 653     no_undefined_flag='${wl}-z ${wl}text'
 654     if test "$GCC" = yes; then
 655       archive_cmds='$CC -shared ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
 656     else
 657       archive_cmds='$CC -G ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
 658     fi
 659     runpath_var='LD_RUN_PATH'
 660     hardcode_shlibpath_var=no
 661     ;;
 662
 663   *)
 664     ld_shlibs=no
 665     ;;
 666   esac
 667 fi
 668
 669 ## Compiler Characteristics: PIC flags, static flags, etc
 670 if test "X${ac_cv_prog_cc_pic+set}" = Xset; then
 671   :
 672 else
 673   ac_cv_prog_cc_pic=
 674   ac_cv_prog_cc_shlib=
 675   ac_cv_prog_cc_wl=
 676   ac_cv_prog_cc_static=
 677   ac_cv_prog_cc_no_builtin=
 678   ac_cv_prog_cc_can_build_shared=$can_build_shared
 679
 680   if test "$with_gcc" = yes; then
 681     ac_cv_prog_cc_wl='-Wl,'
 682     ac_cv_prog_cc_static='-static'
 683
 684     case $host_os in
 685     aix*)
 686       # All AIX code is PIC.
 687       if test "$host_cpu" = ia64; then
 688         # AIX 5 now supports IA64 processor
 689         lt_cv_prog_cc_static='-Bstatic'
 690       else
 691         lt_cv_prog_cc_static='-bnso -bI:/lib/syscalls.exp'
 692       fi
 693       ;;
 694     amigaos*)
 695       # FIXME: we need at least 68020 code to build shared libraries, but
 696       # adding the `-m68020' flag to GCC prevents building anything better,
 697       # like `-m68040'.
 698       ac_cv_prog_cc_pic='-m68020 -resident32 -malways-restore-a4'
 699       ;;
 700     beos* | irix5* | irix6* | osf3* | osf4* | osf5*)
 701       # PIC is the default for these OSes.
 702       ;;
 703     cygwin* | mingw* | os2*)
 704       # This hack is so that the source file can tell whether it is being
 705       # built for inclusion in a dll (and should export symbols for example).
 706       ac_cv_prog_cc_pic='-DDLL_EXPORT'
 707       ;;
 708     darwin* | rhapsody*)
 709       # PIC is the default on this platform
 710       # Common symbols not allowed in MH_DYLIB files
 711       ac_cv_prog_cc_pic='-fno-common'
 712       ;;
 713     *djgpp*)
 714       # DJGPP does not support shared libraries at all
 715       ac_cv_prog_cc_pic=
 716       ;;
 717     sysv4*MP*)
 718       if test -d /usr/nec; then
 719          ac_cv_prog_cc_pic=-Kconform_pic
 720       fi
 721       ;;
 722     *)
 723       ac_cv_prog_cc_pic='-fPIC'
 724       ;;
 725     esac
 726   else
 727     # PORTME Check for PIC flags for the system compiler.
 728     case $host_os in
 729     aix*)
 730      # All AIX code is PIC.
 731       ac_cv_prog_cc_static="$ac_cv_prog_cc_static ${ac_cv_prog_cc_wl}-lC"
 732       ;;
 733
 734     hpux9* | hpux10* | hpux11*)
 735       # Is there a better ac_cv_prog_cc_static that works with the bundled CC?
 736       ac_cv_prog_cc_wl='-Wl,'
 737       ac_cv_prog_cc_static="${ac_cv_prog_cc_wl}-a ${ac_cv_prog_cc_wl}archive"
 738       ac_cv_prog_cc_pic='+Z'
 739       ;;
 740
 741     irix5* | irix6*)
 742       ac_cv_prog_cc_wl='-Wl,'
 743       ac_cv_prog_cc_static='-non_shared'
 744       # PIC (with -KPIC) is the default.
 745       ;;
 746
 747     cygwin* | mingw* | os2*)
 748       # This hack is so that the source file can tell whether it is being
 749       # built for inclusion in a dll (and should export symbols for example).
 750       ac_cv_prog_cc_pic='-DDLL_EXPORT'
 751       ;;
 752
 753     newsos6)
 754       ac_cv_prog_cc_pic='-KPIC'
 755       ac_cv_prog_cc_static='-Bstatic'
 756       ;;
 757
 758     osf3* | osf4* | osf5*)
 759       # All OSF/1 code is PIC.
 760       ac_cv_prog_cc_wl='-Wl,'
 761       ac_cv_prog_cc_static='-non_shared'
 762       ;;
 763
 764     sco3.2v5*)
 765       ac_cv_prog_cc_pic='-Kpic'
 766       ac_cv_prog_cc_static='-dn'
 767       ac_cv_prog_cc_shlib='-belf'
 768       ;;
 769
 770     solaris*)
 771       ac_cv_prog_cc_pic='-KPIC'
 772       ac_cv_prog_cc_static='-Bstatic'
 773       ac_cv_prog_cc_wl='-Wl,'
 774       ;;
 775
 776     sunos4*)
 777       ac_cv_prog_cc_pic='-PIC'
 778       ac_cv_prog_cc_static='-Bstatic'
 779       ac_cv_prog_cc_wl='-Qoption ld '
 780       ;;
 781
 782     sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
 783       ac_cv_prog_cc_pic='-KPIC'
 784       ac_cv_prog_cc_static='-Bstatic'
 785       ac_cv_prog_cc_wl='-Wl,'
 786       ;;
 787
 788     uts4*)
 789       ac_cv_prog_cc_pic='-pic'
 790       ac_cv_prog_cc_static='-Bstatic'
 791       ;;
 792
 793     sysv4*MP*)
 794       if test -d /usr/nec ;then
 795         ac_cv_prog_cc_pic='-Kconform_pic'
 796         ac_cv_prog_cc_static='-Bstatic'
 797       fi
 798       ;;
 799
 800     *)
 801       ac_cv_prog_cc_can_build_shared=no
 802       ;;
 803     esac
 804   fi
 805   case "$host_os" in
 806       # Platforms which do not suport PIC and -DPIC is meaningless
 807       # on them:
 808       *djgpp*)
 809         ac_cv_prog_cc_pic=
 810         ;;
 811       *)
 812         ac_cv_prog_cc_pic="$ac_cv_prog_cc_pic -DPIC"
 813         ;;
 814   esac
 815 fi
 816
 817 need_lc=yes
 818 if test "$enable_shared" = yes && test "$with_gcc" = yes; then
 819   case $archive_cmds in
 820   *'~'*)
 821     # FIXME: we may have to deal with multi-command sequences.
 822     ;;
 823   '$CC '*)
 824     # Test whether the compiler implicitly links with -lc since on some
 825     # systems, -lgcc has to come before -lc. If gcc already passes -lc
 826     # to ld, don't add -lc before -lgcc.
 827     echo $ac_n "checking whether -lc should be explicitly linked in... $ac_c" 1>&6
 828     if eval "test \"`echo '$''{'ac_cv_archive_cmds_needs_lc'+set}'`\" = set"; then
 829       echo $ac_n "(cached) $ac_c" 1>&6
 830       need_lc=$ac_cv_archive_cmds_needs_lc
 831     else
 832       $rm conftest*
 833       echo "static int dummy;" > conftest.$ac_ext
 834       if { (eval echo ltcf-c.sh:need_lc: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>conftest.err; }; then
 835         # Append any warnings to the config.log.
 836         cat conftest.err 1>&5
 837         soname=conftest
 838         lib=conftest
 839         libobjs=conftest.$objext
 840         deplibs=
 841         wl=$ac_cv_prog_cc_wl
 842         compiler_flags=-v
 843         linker_flags=-v
 844         verstring=
 845         output_objdir=.
 846         libname=conftest
 847         save_allow_undefined_flag=$allow_undefined_flag
 848         allow_undefined_flag=
 849         if { (eval echo ltcf-c.sh:need_lc: \"$archive_cmds\") 1>&5; (eval $archive_cmds) 2>&1 | grep " -lc " 1>&5 ; }; then
 850           need_lc=no
 851         fi
 852         allow_undefined_flag=$save_allow_undefined_flag
 853       else
 854         cat conftest.err 1>&5
 855       fi
 856     fi
 857     $rm conftest*
 858     echo "$ac_t$need_lc" 1>&6
 859     ;;
 860   esac
 861 fi
 862 ac_cv_archive_cmds_needs_lc=$need_lc