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 $host_os in
  60   aix3* | aix4* | aix5*)
  61     # On AIX, the GNU linker is very broken
  62     ld_shlibs=no
  63     cat <<EOF 1>&2
  64
  65 *** Warning: the GNU linker, at least up to release 2.9.1, is reported
  66 *** to be unable to reliably create shared libraries on AIX.
  67 *** Therefore, libtool is disabling shared libraries support.  If you
  68 *** really care for shared libraries, you may want to modify your PATH
  69 *** so that a non-GNU linker is found, and then restart.
  70
  71 EOF
  72     ;;
  73
  74   amigaos*)
  75     archive_cmds='$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 $output_objdir && a2ixlibrary -32)'
  76     hardcode_libdir_flag_spec='-L$libdir'
  77     hardcode_minus_L=yes
  78
  79     # Samuel A. Falvo II <kc5tja@dolphin.openprojects.net> reports
  80     # that the semantics of dynamic libraries on AmigaOS, at least up
  81     # to version 4, is to share data among multiple programs linked
  82     # with the same dynamic library.  Since this doesn't match the
  83     # behavior of shared libraries on other platforms, we can use
  84     # them.
  85     ld_shlibs=no
  86     ;;
  87
  88   beos*)
  89     if $LD --help 2>&1 | egrep ': supported targets:.* elf' > /dev/null; then
  90       allow_undefined_flag=unsupported
  91       # Joseph Beckenbach <jrb3@best.com> says some releases of gcc
  92       # support --undefined.  This deserves some investigation.  FIXME
  93       archive_cmds='$CC -nostart $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
  94     else
  95       ld_shlibs=no
  96     fi
  97     ;;
  98
  99   cygwin* | mingw*)
 100     # hardcode_libdir_flag_spec is actually meaningless, as there is
 101     # no search path for DLLs.
 102     hardcode_libdir_flag_spec='-L$libdir'
 103     allow_undefined_flag=unsupported
 104     always_export_symbols=yes
 105
 106     extract_expsyms_cmds='test -f $output_objdir/impgen.c || \
 107       sed -e "/^# \/\* impgen\.c starts here \*\//,/^# \/\* impgen.c ends here \*\// { s/^# //; p; }" -e d < $0 > $output_objdir/impgen.c~
 108       test -f $output_objdir/impgen.exe || (cd $output_objdir && \
 109       if test "x$HOST_CC" != "x" ; then $HOST_CC -o impgen impgen.c ; \
 110       else $CC -o impgen impgen.c ; fi)~
 111       $output_objdir/impgen $dir/$soroot > $output_objdir/$soname-def'
 112
 113     old_archive_from_expsyms_cmds='$DLLTOOL --as=$AS --dllname $soname --def $output_objdir/$soname-def --output-lib $output_objdir/$newlib'
 114
 115     # cygwin and mingw dlls have different entry points and sets of symbols
 116     # to exclude.
 117     # FIXME: what about values for MSVC?
 118     dll_entry=__cygwin_dll_entry@12
 119     dll_exclude_symbols=DllMain@12,_cygwin_dll_entry@12,_cygwin_noncygwin_dll_entry@12~
 120     case $host_os in
 121     mingw*)
 122       # mingw values
 123       dll_entry=_DllMainCRTStartup@12
 124       dll_exclude_symbols=DllMain@12,DllMainCRTStartup@12,DllEntryPoint@12~
 125       ;;
 126     esac
 127
 128     # mingw and cygwin differ, and it's simplest to just exclude the union
 129     # of the two symbol sets.
 130     dll_exclude_symbols=DllMain@12,_cygwin_dll_entry@12,_cygwin_noncygwin_dll_entry@12,DllMainCRTStartup@12,DllEntryPoint@12
 131
 132     # recent cygwin and mingw systems supply a stub DllMain which the user
 133     # can override, but on older systems we have to supply one (in ltdll.c)
 134     if test "x$lt_cv_need_dllmain" = "xyes"; then
 135       ltdll_obj='$output_objdir/$soname-ltdll.'"$objext "
 136       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~
 137         test -f $output_objdir/$soname-ltdll.$objext || (cd $output_objdir && $CC -c $soname-ltdll.c)~'
 138     else
 139       ltdll_obj=
 140       ltdll_cmds=
 141     fi
 142
 143     # Extract the symbol export list from an `--export-all' def file,
 144     # then regenerate the def file from the symbol export list, so that
 145     # the compiled dll only exports the symbol export list.
 146     # Be careful not to strip the DATA tag left be newer dlltools.
 147     export_symbols_cmds="$ltdll_cmds"'
 148       $DLLTOOL --export-all --exclude-symbols '$dll_exclude_symbols' --output-def $output_objdir/$soname-def '$ltdll_obj'$libobjs $convenience~
 149       sed -e "1,/EXPORTS/d" -e "s/ @ [0-9]*//" -e "s/ *;.*$//" < $output_objdir/$soname-def > $export_symbols'
 150
 151     # If the export-symbols file already is a .def file (1st line
 152     # is EXPORTS), use it as is.
 153     # If DATA tags from a recent dlltool are present, honour them!
 154     archive_expsym_cmds='if test "x`head -1 $export_symbols`" = xEXPORTS; then
 155         cp $export_symbols $output_objdir/$soname-def;
 156       else
 157         echo EXPORTS > $output_objdir/$soname-def;
 158         _lt_hint=1;
 159         cat $export_symbols | while read symbol; do
 160          set dummy \$symbol;
 161          case \[$]# in
 162            2) echo "   \[$]2 @ \$_lt_hint ; " >> $output_objdir/$soname-def;;
 163            *) echo "     \[$]2 @ \$_lt_hint \[$]3 ; " >> $output_objdir/$soname-def;;
 164          esac;
 165          _lt_hint=`expr 1 + \$_lt_hint`;
 166         done;
 167       fi~
 168       '"$ltdll_cmds"'
 169       $CC -Wl,--base-file,$output_objdir/$soname-base '$lt_cv_cc_dll_switch' -Wl,-e,'$dll_entry' -o $output_objdir/$soname '$ltdll_obj'$libobjs $deplibs $compiler_flags~
 170       $DLLTOOL --as=$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~
 171       $CC -Wl,--base-file,$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~
 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 --output-lib $output_objdir/$libname.dll.a~
 173       $CC $output_objdir/$soname-exp '$lt_cv_cc_dll_switch' -Wl,-e,'$dll_entry' -o $output_objdir/$soname '$ltdll_obj'$libobjs $deplibs $compiler_flags'
 174     ;;
 175
 176   darwin* | rhapsody*)
 177     allow_undefined_flag='-undefined suppress'
 178     archive_cmds='$CC `test .$module = .yes && echo -bundle || echo -dynamiclib` $allow_undefined_flag -o $lib $libobjs $deplibs $linkopts -install_name $rpath/$soname `test -n "$verstring" -a x$verstring != x0.0 && echo $verstring`'
 179     # We need to add '_' to the symbols in $export_symbols first
 180     #archive_expsym_cmds="$archive_cmds"' && strip -s $export_symbols'
 181     hardcode_direct=yes
 182     hardcode_shlibpath_var=no
 183     whole_archive_flag_spec='-all_load $convenience'
 184     ;;
 185
 186   netbsd*)
 187     if echo __ELF__ | $CC -E - | grep __ELF__ >/dev/null; then
 188       archive_cmds='$LD -Bshareable $libobjs $deplibs $linker_flags -o $lib'
 189       wlarc=
 190     else
 191       archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
 192       archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
 193     fi
 194     ;;
 195
 196   solaris* | sysv5*)
 197     if $LD -v 2>&1 | egrep 'BFD 2\.8' > /dev/null; then
 198       ld_shlibs=no
 199       cat <<EOF 1>&2
 200
 201 *** Warning: The releases 2.8.* of the GNU linker cannot reliably
 202 *** create shared libraries on Solaris systems.  Therefore, libtool
 203 *** is disabling shared libraries support.  We urge you to upgrade GNU
 204 *** binutils to release 2.9.1 or newer.  Another option is to modify
 205 *** your PATH or compiler configuration so that the native linker is
 206 *** used, and then restart.
 207
 208 EOF
 209     elif $LD --help 2>&1 | egrep ': supported targets:.* elf' > /dev/null; then
 210       archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
 211       archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
 212     else
 213       ld_shlibs=no
 214     fi
 215     ;;
 216
 217   sunos4*)
 218     archive_cmds='$LD -assert pure-text -Bshareable -o $lib $libobjs $deplibs $linker_flags'
 219     wlarc=
 220     hardcode_direct=yes
 221     hardcode_shlibpath_var=no
 222     ;;
 223
 224   *)
 225     if $LD --help 2>&1 | egrep ': supported targets:.* elf' > /dev/null; then
 226       archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
 227       archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
 228     else
 229       ld_shlibs=no
 230     fi
 231     ;;
 232   esac
 233
 234   if test "$ld_shlibs" = yes; then
 235     runpath_var=LD_RUN_PATH
 236     hardcode_libdir_flag_spec='${wl}--rpath ${wl}$libdir'
 237     export_dynamic_flag_spec='${wl}--export-dynamic'
 238     case $host_os in
 239     cygwin* | mingw*)
 240       # dlltool doesn't understand --whole-archive et. al.
 241       whole_archive_flag_spec=
 242       ;;
 243     *)
 244       # ancient GNU ld didn't support --whole-archive et. al.
 245       if $LD --help 2>&1 | egrep 'no-whole-archive' > /dev/null; then
 246         whole_archive_flag_spec="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
 247       else
 248         whole_archive_flag_spec=
 249       fi
 250       ;;
 251     esac
 252   fi
 253 else
 254   # PORTME fill in a description of your system's linker (not GNU ld)
 255   case $host_os in
 256   aix3*)
 257     allow_undefined_flag=unsupported
 258     always_export_symbols=yes
 259     archive_expsym_cmds='$LD -o $output_objdir/$soname $libobjs $deplibs $linker_flags -bE:$export_symbols -T512 -H512 -bM:SRE~$AR $AR_FLAGS $lib $output_objdir/$soname'
 260     # Note: this linker hardcodes the directories in LIBPATH if there
 261     # are no directories specified by -L.
 262     hardcode_minus_L=yes
 263     if test "$with_gcc" = yes && test -z "$link_static_flag"; then
 264       # Neither direct hardcoding nor static linking is supported with a
 265       # broken collect2.
 266       hardcode_direct=unsupported
 267     fi
 268     ;;
 269
 270   aix4* | aix5*)
 271     hardcode_direct=yes
 272     hardcode_libdir_separator=':'
 273     link_all_deplibs=yes
 274     # When large executables or shared objects are built, AIX ld can
 275     # have problems creating the table of contents.  If linking a library
 276     # or program results in "error TOC overflow" add -mminimal-toc to
 277     # CXXFLAGS/CFLAGS for g++/gcc.  In the cases where that is not
 278     # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
 279     if test "$with_gcc" = yes; then
 280       case $host_os in aix4.[012]|aix4.[012].*)
 281       # We only want to do this on AIX 4.2 and lower, the check
 282       # below for broken collect2 doesn't work under 4.3+
 283         collect2name=`${CC} -print-prog-name=collect2`
 284         if test -f "$collect2name" && \
 285            strings "$collect2name" | grep resolve_lib_name >/dev/null
 286         then
 287           # We have reworked collect2
 288           hardcode_direct=yes
 289         else
 290           # We have old collect2
 291           hardcode_direct=unsupported
 292           # It fails to find uninstalled libraries when the uninstalled
 293           # path is not listed in the libpath.  Setting hardcode_minus_L
 294           # to unsupported forces relinking
 295           hardcode_minus_L=yes
 296           hardcode_libdir_flag_spec='-L$libdir'
 297           hardcode_libdir_separator=
 298         fi
 299       esac
 300       shared_flag='-shared'
 301     else
 302       # not using gcc
 303       if test "$host_cpu" = ia64; then
 304         shared_flag='${wl}-G'
 305       else
 306         shared_flag='${wl}-bM:SRE'
 307       fi
 308     fi
 309
 310     if test "$host_cpu" = ia64; then
 311       # On IA64, the linker does run time linking by default, so we don't
 312       # have to do anything special.
 313       aix_use_runtimelinking=no
 314       exp_sym_flag='-Bexport'
 315       no_entry_flag=""
 316     else
 317       # Test if we are trying to use run time linking, or normal AIX style linking.
 318       # If -brtl is somewhere in LDFLAGS, we need to do run time linking.
 319       aix_use_runtimelinking=no
 320       for ld_flag in $LDFLAGS; do
 321         if (test $ld_flag = "-brtl" || test $ld_flag = "-Wl,-brtl" ); then
 322           aix_use_runtimelinking=yes
 323           break
 324         fi
 325       done
 326       exp_sym_flag='-bexport'
 327       no_entry_flag='-bnoentry'
 328     fi
 329     # -bexpall does not export symbols beginning with underscore (_)
 330     always_export_symbols=yes
 331     if test "$aix_use_runtimelinking" = yes; then
 332       # Warning - without using the other run time loading flags (-brtl), -berok will
 333       #           link without error, but may produce a broken library.
 334       allow_undefined_flag=' ${wl}-berok'
 335       hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:/usr/lib:/lib'
 336       archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${allow_undefined_flag} '"\${wl}$no_entry_flag \${wl}$exp_sym_flag:\$export_symbols"
 337     else
 338       if test "$host_cpu" = ia64; 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       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 "$srcfile"`'
 380     ;;
 381
 382   freebsd1*)
 383     ld_shlibs=no
 384     ;;
 385
 386   # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor
 387   # support.  Future versions do this automatically, but an explicit c++rt0.o
 388   # does not break anything, and helps significantly (at the cost of a little
 389   # extra space).
 390   freebsd2.2*)
 391     archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags /usr/lib/c++rt0.o'
 392     hardcode_libdir_flag_spec='-R$libdir'
 393     hardcode_direct=yes
 394     hardcode_shlibpath_var=no
 395     ;;
 396
 397   # Unfortunately, older versions of FreeBSD 2 do not have this feature.
 398   freebsd2*)
 399     archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
 400     hardcode_direct=yes
 401     hardcode_minus_L=yes
 402     hardcode_shlibpath_var=no
 403     ;;
 404
 405   # FreeBSD 3 and greater uses gcc -shared to do shared libraries.
 406   freebsd*)
 407     archive_cmds='$CC -shared -o $lib $libobjs $deplibs $compiler_flags'
 408     hardcode_libdir_flag_spec='-R$libdir'
 409     hardcode_direct=yes
 410     hardcode_shlibpath_var=no
 411     ;;
 412
 413   hpux9* | hpux10* | hpux11*)
 414     case $host_os in
 415     hpux9*) archive_cmds='$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 $lib' ;;
 416     *) archive_cmds='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags' ;;
 417     esac
 418     hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
 419     hardcode_libdir_separator=:
 420     hardcode_direct=yes
 421     hardcode_minus_L=yes # Not in the search PATH, but as the default
 422                          # location of the library.
 423     export_dynamic_flag_spec='${wl}-E'
 424     ;;
 425
 426   irix5* | irix6*)
 427     if test "$with_gcc" = yes; then
 428       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 $lib'
 429     else
 430       archive_cmds='$LD -shared $libobjs $deplibs $linker_flags -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${objdir}/so_locations -o $lib'
 431     fi
 432     hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 433     hardcode_libdir_separator=:
 434     link_all_deplibs=yes
 435     ;;
 436
 437   netbsd*)
 438     if echo __ELF__ | $CC -E - | grep __ELF__ >/dev/null; then
 439       archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'  # a.out
 440     else
 441       archive_cmds='$LD -shared -o $lib $libobjs $deplibs $linker_flags'      # ELF
 442     fi
 443     hardcode_libdir_flag_spec='-R$libdir'
 444     hardcode_direct=yes
 445     hardcode_shlibpath_var=no
 446     ;;
 447
 448   newsos6)
 449     archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linkopts'
 450     hardcode_direct=yes
 451     hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 452     hardcode_libdir_separator=:
 453     hardcode_shlibpath_var=no
 454     ;;
 455
 456   openbsd*)
 457     archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
 458     hardcode_libdir_flag_spec='-R$libdir'
 459     hardcode_direct=yes
 460     hardcode_shlibpath_var=no
 461     ;;
 462
 463   os2*)
 464     hardcode_libdir_flag_spec='-L$libdir'
 465     hardcode_minus_L=yes
 466     allow_undefined_flag=unsupported
 467     archive_cmds='$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'
 468     old_archive_from_new_cmds='emximp -o $output_objdir/$libname.a $output_objdir/$libname.def'
 469     ;;
 470
 471   osf3*)
 472     if test "$with_gcc" = yes; then
 473       allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
 474       archive_cmds='$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 $lib'
 475     else
 476       allow_undefined_flag=' -expect_unresolved \*'
 477       archive_cmds='$LD -shared${allow_undefined_flag} $libobjs $deplibs $linker_flags -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${objdir}/so_locations -o $lib'
 478     fi
 479     hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 480     hardcode_libdir_separator=:
 481     ;;
 482
 483   osf4* | osf5*)        # as osf3* with the addition of -msym flag
 484     if test "$with_gcc" = yes; then
 485       allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
 486       archive_cmds='$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 $lib'
 487       hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 488     else
 489       allow_undefined_flag=' -expect_unresolved \*'
 490       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'
 491       archive_expsym_cmds='for i in `cat $export_symbols`; do printf "-exported_symbol " >> $lib.exp; echo "\$i" >> $lib.exp; done; echo "-hidden">> $lib.exp~
 492       $LD -shared${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'
 493
 494       # cc supports -rpath directly
 495       hardcode_libdir_flag_spec='-rpath $libdir'
 496     fi
 497     hardcode_libdir_separator=:
 498     ;;
 499
 500   sco3.2v5*)
 501     archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
 502     hardcode_shlibpath_var=no
 503     runpath_var=LD_RUN_PATH
 504     hardcode_runpath_var=yes
 505     ;;
 506
 507   solaris*)
 508     no_undefined_flag=' -z defs'
 509     # $CC -shared without GNU ld will not create a library from C++
 510     # object files and a static libstdc++, better avoid it by now
 511     archive_cmds='$LD -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $linker_flags'
 512     archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
 513                 $LD -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$rm $lib.exp'
 514     hardcode_libdir_flag_spec='-R$libdir'
 515     hardcode_shlibpath_var=no
 516     case $host_os in
 517     solaris2.[0-5] | solaris2.[0-5].*) ;;
 518     *) # Supported since Solaris 2.6 (maybe 2.5.1?)
 519       whole_archive_flag_spec='-z allextract$convenience -z defaultextract' ;;
 520     esac
 521     link_all_deplibs=yes
 522     ;;
 523
 524   sunos4*)
 525     archive_cmds='$LD -assert pure-text -Bstatic -o $lib $libobjs $deplibs $linker_flags'
 526     hardcode_libdir_flag_spec='-L$libdir'
 527     hardcode_direct=yes
 528     hardcode_minus_L=yes
 529     hardcode_shlibpath_var=no
 530     ;;
 531
 532   sysv4)
 533     archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
 534     runpath_var='LD_RUN_PATH'
 535     hardcode_shlibpath_var=no
 536     hardcode_direct=no #Motorola manual says yes, but my tests say they lie
 537     ;;
 538
 539   sysv4.3*)
 540     archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
 541     hardcode_shlibpath_var=no
 542     export_dynamic_flag_spec='-Bexport'
 543     ;;
 544
 545   sysv5*)
 546     no_undefined_flag=' -z text'
 547     # $CC -shared without GNU ld will not create a library from C++
 548     # object files and a static libstdc++, better avoid it by now
 549     archive_cmds='$LD -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $linker_flags'
 550     archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
 551                 $LD -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$rm $lib.exp'
 552     hardcode_libdir_flag_spec=
 553     hardcode_shlibpath_var=no
 554     runpath_var='LD_RUN_PATH'
 555     ;;
 556
 557   uts4*)
 558     archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
 559     hardcode_libdir_flag_spec='-L$libdir'
 560     hardcode_shlibpath_var=no
 561     ;;
 562
 563   dgux*)
 564     archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
 565     hardcode_libdir_flag_spec='-L$libdir'
 566     hardcode_shlibpath_var=no
 567     ;;
 568
 569   sysv4*MP*)
 570     if test -d /usr/nec; then
 571       archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
 572       hardcode_shlibpath_var=no
 573       runpath_var=LD_RUN_PATH
 574       hardcode_runpath_var=yes
 575       ld_shlibs=yes
 576     fi
 577     ;;
 578
 579   sysv4.2uw2*)
 580     archive_cmds='$LD -G -o $lib $libobjs $deplibs $linker_flags'
 581     hardcode_direct=yes
 582     hardcode_minus_L=no
 583     hardcode_shlibpath_var=no
 584     hardcode_runpath_var=yes
 585     runpath_var=LD_RUN_PATH
 586     ;;
 587
 588   unixware7*)
 589     archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
 590     runpath_var='LD_RUN_PATH'
 591     hardcode_shlibpath_var=no
 592     ;;
 593
 594   *)
 595     ld_shlibs=no
 596     ;;
 597   esac
 598 fi
 599
 600 ## Compiler Characteristics: PIC flags, static flags, etc
 601 if test "X${ac_cv_prog_cc_pic+set}" = Xset; then
 602   :
 603 else
 604   ac_cv_prog_cc_pic=
 605   ac_cv_prog_cc_shlib=
 606   ac_cv_prog_cc_wl=
 607   ac_cv_prog_cc_static=
 608   ac_cv_prog_cc_no_builtin=
 609   ac_cv_prog_cc_can_build_shared=$can_build_shared
 610
 611   if test "$with_gcc" = yes; then
 612     ac_cv_prog_cc_wl='-Wl,'
 613     ac_cv_prog_cc_static='-static'
 614
 615     case $host_os in
 616     aix*)
 617       # All AIX code is PIC.
 618       if test "$host_cpu" = ia64; then
 619         # AIX 5 now supports IA64 processor
 620         lt_cv_prog_cc_static='-Bstatic'
 621       else
 622         lt_cv_prog_cc_static='-bnso -bI:/lib/syscalls.exp'
 623       fi
 624       ;;
 625     amigaos*)
 626       # FIXME: we need at least 68020 code to build shared libraries, but
 627       # adding the `-m68020' flag to GCC prevents building anything better,
 628       # like `-m68040'.
 629       ac_cv_prog_cc_pic='-m68020 -resident32 -malways-restore-a4'
 630       ;;
 631     beos* | irix5* | irix6* | osf3* | osf4* | osf5*)
 632       # PIC is the default for these OSes.
 633       ;;
 634     cygwin* | mingw* | os2*)
 635       # This hack is so that the source file can tell whether it is being
 636       # built for inclusion in a dll (and should export symbols for example).
 637       ac_cv_prog_cc_pic='-DDLL_EXPORT'
 638       ;;
 639     darwin* | rhapsody*)
 640       # PIC is the default on this platform
 641       # Common symbols not allowed in MH_DYLIB files
 642       lt_cv_prog_cc_pic='-fno-common'
 643       ;;
 644     *djgpp*)
 645       # DJGPP does not support shared libraries at all
 646       ac_cv_prog_cc_pic=
 647       ;;
 648     sysv4*MP*)
 649       if test -d /usr/nec; then
 650          ac_cv_prog_cc_pic=-Kconform_pic
 651       fi
 652       ;;
 653     *)
 654       ac_cv_prog_cc_pic='-fPIC'
 655       ;;
 656     esac
 657   else
 658     # PORTME Check for PIC flags for the system compiler.
 659     case $host_os in
 660     aix*)
 661      # All AIX code is PIC.
 662       ac_cv_prog_cc_static="$ac_cv_prog_cc_static ${ac_cv_prog_cc_wl}-lC"
 663       ;;
 664
 665     hpux9* | hpux10* | hpux11*)
 666       # Is there a better ac_cv_prog_cc_static that works with the bundled CC?
 667       ac_cv_prog_cc_wl='-Wl,'
 668       ac_cv_prog_cc_static="${ac_cv_prog_cc_wl}-a ${ac_cv_prog_cc_wl}archive"
 669       ac_cv_prog_cc_pic='+Z'
 670       ;;
 671
 672     irix5* | irix6*)
 673       ac_cv_prog_cc_wl='-Wl,'
 674       ac_cv_prog_cc_static='-non_shared'
 675       # PIC (with -KPIC) is the default.
 676       ;;
 677
 678     cygwin* | mingw* | os2*)
 679       # This hack is so that the source file can tell whether it is being
 680       # built for inclusion in a dll (and should export symbols for example).
 681       ac_cv_prog_cc_pic='-DDLL_EXPORT'
 682       ;;
 683
 684     newsos6)
 685       ac_cv_prog_cc_pic='-KPIC'
 686       ac_cv_prog_cc_static='-Bstatic'
 687       ;;
 688
 689     osf3* | osf4* | osf5*)
 690       # All OSF/1 code is PIC.
 691       ac_cv_prog_cc_wl='-Wl,'
 692       ac_cv_prog_cc_static='-non_shared'
 693       ;;
 694
 695     sco3.2v5*)
 696       ac_cv_prog_cc_pic='-Kpic'
 697       ac_cv_prog_cc_static='-dn'
 698       ac_cv_prog_cc_shlib='-belf'
 699       ;;
 700
 701     solaris*)
 702       ac_cv_prog_cc_pic='-KPIC'
 703       ac_cv_prog_cc_static='-Bstatic'
 704       ac_cv_prog_cc_wl='-Wl,'
 705       ;;
 706
 707     sunos4*)
 708       ac_cv_prog_cc_pic='-PIC'
 709       ac_cv_prog_cc_static='-Bstatic'
 710       ac_cv_prog_cc_wl='-Qoption ld '
 711       ;;
 712
 713     sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
 714       ac_cv_prog_cc_pic='-KPIC'
 715       ac_cv_prog_cc_static='-Bstatic'
 716       ac_cv_prog_cc_wl='-Wl,'
 717       ;;
 718
 719     uts4*)
 720       ac_cv_prog_cc_pic='-pic'
 721       ac_cv_prog_cc_static='-Bstatic'
 722       ;;
 723
 724     sysv4*MP*)
 725       if test -d /usr/nec ;then
 726         ac_cv_prog_cc_pic='-Kconform_pic'
 727         ac_cv_prog_cc_static='-Bstatic'
 728       fi
 729       ;;
 730
 731     *)
 732       ac_cv_prog_cc_can_build_shared=no
 733       ;;
 734     esac
 735   fi
 736   case "$host_os" in
 737       # Platforms which do not suport PIC and -DPIC is meaningless
 738       # on them:
 739       *djgpp*)
 740         ac_cv_prog_cc_pic=
 741         ;;
 742       *)
 743         ac_cv_prog_cc_pic="$ac_cv_prog_cc_pic -DPIC"
 744         ;;
 745   esac
 746 fi
 747
 748 need_lc=yes
 749 if test "$enable_shared" = yes && test "$with_gcc" = yes; then
 750   case $archive_cmds in
 751   *'~'*)
 752     # FIXME: we may have to deal with multi-command sequences.
 753     ;;
 754   '$CC '*)
 755     # Test whether the compiler implicitly links with -lc since on some
 756     # systems, -lgcc has to come before -lc. If gcc already passes -lc
 757     # to ld, don't add -lc before -lgcc.
 758     echo $ac_n "checking whether -lc should be explicitly linked in... $ac_c" 1>&6
 759     if eval "test \"`echo '$''{'ac_cv_archive_cmds_needs_lc'+set}'`\" = set"; then
 760       echo $ac_n "(cached) $ac_c" 1>&6
 761       need_lc=$ac_cv_archive_cmds_needs_lc
 762     else
 763       $rm conftest*
 764       echo "static int dummy;" > conftest.$ac_ext
 765       if { (eval echo ltcf-c.sh:need_lc: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>conftest.err; }; then
 766         # Append any warnings to the config.log.
 767         cat conftest.err 1>&5
 768         soname=conftest
 769         lib=conftest
 770         libobjs=conftest.$ac_objext
 771         deplibs=
 772         wl=$ac_cv_prog_cc_wl
 773         compiler_flags=-v
 774         linker_flags=-v
 775         verstring=
 776         output_objdir=.
 777         libname=conftest
 778         save_allow_undefined_flag=$allow_undefined_flag
 779         allow_undefined_flag=
 780         if { (eval echo ltcf-c.sh:need_lc: \"$archive_cmds\") 1>&5; (eval $archive_cmds) 2>&1 | grep " -lc " 1>&5 ; }; then
 781           need_lc=no
 782         fi
 783         allow_undefined_flag=$save_allow_undefined_flag
 784       else
 785         cat conftest.err 1>&5
 786       fi
 787     fi
 788     $rm conftest*
 789     echo "$ac_t$need_lc" 1>&6
 790     ;;
 791   esac
 792 fi
 793 ac_cv_archive_cmds_needs_lc=$need_lc