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