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 m