admin/ltcf-c.sh

   1 #### This script is meant to be sourced by ltconfig.
   2
   3 # $Id$
   4
   5 # ltcf-c.sh - Create a C compiler specific configuration
   6 #
   7 # Copyright (C) 1996-2000 Free Software Foundation, Inc.
   8 # Originally by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996
   9 #
  10 # This file is free software; you can redistribute it and/or modify it
  11 # under the terms of the GNU General Public License as published by
  12 # the Free Software Foundation; either version 2 of the License, or
  13 # (at your option) any later version.
  14 #
  15 # This program is distributed in the hope that it will be useful, but
  16 # WITHOUT ANY WARRANTY; without even the implied warranty of
  17 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18 # General Public License for more details.
  19 #
  20 # You should have received a copy of the GNU General Public License
  21 # along with this program; if not, write to the Free Software
  22 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  23 #
  24 # As a special exception to the GNU General Public License, if you
  25 # distribute this file as part of a program that contains a
  26 # configuration script generated by Autoconf, you may include it under
  27 # the same distribution terms that you use for the rest of that program.
  28
  29
  30 # Source file extension for C test sources.
  31 ac_ext=c
  32
  33 # Object file extension for compiled C test sources.
  34 objext=o
  35
  36 # Code to be used in simple compile tests
  37 lt_simple_compile_test_code="int some_variable = 0;"
  38
  39 # Code to be used in simple link tests
  40 lt_simple_link_test_code='main(){return(0);}'
  41
  42 ## Linker Characteristics
  43 case "$host_os" in
  44 cygwin* | mingw*)
  45   # FIXME: the MSVC++ port hasn't been tested in a loooong time
  46   # When not using gcc, we currently assume that we are using
  47   # Microsoft Visual C++.
  48   if test "$with_gcc" != yes; then
  49     with_gnu_ld=no
  50   fi
  51   ;;
  52
  53 esac
  54
  55 ld_shlibs=yes
  56 if test "$with_gnu_ld" = yes; then
  57   # If archive_cmds runs LD, not CC, wlarc should be empty
  58   wlarc='${wl}'
  59
  60   # See if GNU ld supports shared libraries.
  61   case "$host_os" in
  62   aix3* | aix4*)
  63     # On AIX, the GNU linker is very broken
  64     ld_shlibs=no
  65     cat <<EOF 1>&2
  66
  67 *** Warning: the GNU linker, at least up to release 2.9.1, is reported
  68 *** to be unable to reliably create shared libraries on AIX.
  69 *** Therefore, libtool is disabling shared libraries support.  If you
  70 *** really care for shared libraries, you may want to modify your PATH
  71 *** so that a non-GNU linker is found, and then restart.
  72
  73 EOF
  74     ;;
  75
  76   amigaos*)
  77     archive_cmds='$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 $output_objdir && \
 111       if test "x$HOST_CC" != "x" ; then $HOST_CC -o impgen impgen.c ; \
 112       else $CC -o impgen impgen.c ; fi)~
 113       $output_objdir/impgen $dir/$soname > $output_objdir/$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 DATA tags from a recent dlltool are present, honour them!
 154     archive_expsym_cmds='echo EXPORTS > $output_objdir/$soname-def~
 155       _lt_hint=1;
 156       cat $export_symbols | while read symbol; do
 157         set dummy \$symbol;
 158         case \$# in
 159           2) echo "     \$2 @ \$_lt_hint ; " >> $output_objdir/$soname-def;;
 160           *) echo "     \$2 @ \$_lt_hint \$3 ; " >> $output_objdir/$soname-def;;
 161         esac;
 162         _lt_hint=`expr 1 + \$_lt_hint`;
 163       done~
 164       '"$ltdll_cmds"'
 165       $CC -Wl,--base-file,$output_objdir/$soname-base '$lt_cv_cc_dll_switch' -Wl,-e,'$dll_entry' -o $lib '$ltdll_obj'$libobjs $deplibs $compiler_flags~
 166       $DLLTOOL --as=$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~
 167       $CC -Wl,--base-file,$output_objdir/$soname-base $output_objdir/$soname-exp '$lt_cv_cc_dll_switch' -Wl,-e,'$dll_entry' -o $lib '$ltdll_obj'$libobjs $deplibs $compiler_flags~
 168       $DLLTOOL --as=$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~
 169       $CC $output_objdir/$soname-exp '$lt_cv_cc_dll_switch' -Wl,-e,'$dll_entry' -o $lib '$ltdll_obj'$libobjs $deplibs $compiler_flags'
 170     ;;
 171
 172   darwin*|rhapsody*)
 173     allow_undefined_flag='-undefined warning'
 174     archive_cmds='$CC $(if test "$module" = "yes"; then echo -bundle; else
 175       echo -dynamiclib; fi) -o $lib $libobjs $deplibs $linkopts'
 176     archive_expsym_cmds="$archive_cmds"' && strip -s $export_symbols'
 177     ## What we need is to hardcode the path to the library, not the search path
 178     #hardcode_direct=yes
 179     #hardcode_libdir_flag_spec='-install_name $libdir/$lib'
 180     hardcode_shlibpath_var=no
 181     whole_archive_flag_spec='-all_load'
 182     ;;
 183
 184   netbsd*)
 185     if echo __ELF__ | $CC -E - | grep __ELF__ >/dev/null; then
 186       archive_cmds='$LD -Bshareable $libobjs $deplibs $linker_flags -o $lib'
 187       wlarc=
 188     else
 189       archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
 190       archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
 191     fi
 192     ;;
 193
 194   solaris* | sysv5*)
 195     if $LD -v 2>&1 | egrep 'BFD 2\.8' > /dev/null; then
 196       ld_shlibs=no
 197       cat <<EOF 1>&2
 198
 199 *** Warning: The releases 2.8.* of the GNU linker cannot reliably
 200 *** create shared libraries on Solaris systems.  Therefore, libtool
 201 *** is disabling shared libraries support.  We urge you to upgrade GNU
 202 *** binutils to release 2.9.1 or newer.  Another option is to modify
 203 *** your PATH or compiler configuration so that the native linker is
 204 *** used, and then restart.
 205
 206 EOF
 207     elif $LD --help 2>&1 | egrep ': supported targets:.* elf' > /dev/null; then
 208       archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
 209       archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
 210     else
 211       ld_shlibs=no
 212     fi
 213     ;;
 214
 215   sunos4*)
 216     archive_cmds='$LD -assert pure-text -Bshareable -o $lib $libobjs $deplibs $linker_flags'
 217     wlarc=
 218     hardcode_direct=yes
 219     hardcode_shlibpath_var=no
 220     ;;
 221
 222   *)
 223     if $LD --help 2>&1 | egrep ': supported targets:.* elf' > /dev/null; then
 224       archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
 225       archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
 226     else
 227       ld_shlibs=no
 228     fi
 229     ;;
 230   esac
 231
 232   case "$host_os" in
 233   freebsd*)
 234     skip_need_lc_check=yes
 235     ;;
 236   esac
 237
 238   if test "$ld_shlibs" = yes; then
 239     runpath_var=LD_RUN_PATH
 240     hardcode_libdir_flag_spec='${wl}--rpath ${wl}$libdir'
 241     export_dynamic_flag_spec='${wl}--export-dynamic'
 242     case $host_os in
 243     cygwin* | mingw*)
 244       # dlltool doesn't understand --whole-archive et. al.
 245       whole_archive_flag_spec=
 246       ;;
 247     *)
 248       # ancient GNU ld didn't support --whole-archive et. al.
 249       if $LD --help 2>&1 | egrep 'no-whole-archive' > /dev/null; then
 250         whole_archive_flag_spec="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
 251       else
 252         whole_archive_flag_spec=
 253       fi
 254       ;;
 255     esac
 256   fi
 257 else
 258   # PORTME fill in a description of your system's linker (not GNU ld)
 259   case "$host_os" in
 260   aix3*)
 261     allow_undefined_flag=unsupported
 262     always_export_symbols=yes
 263     archive_expsym_cmds='$LD -o $output_objdir/$soname $libobjs $deplibs $linker_flags -bE:$export_symbols -T512 -H512 -bM:SRE~$AR $AR_FLAGS $lib $output_objdir/$soname'
 264     # Note: this linker hardcodes the directories in LIBPATH if there
 265     # are no directories specified by -L.
 266     hardcode_minus_L=yes
 267     if test "$with_gcc" = yes && test -z "$link_static_flag"; then
 268       # Neither direct hardcoding nor static linking is supported with a
 269       # broken collect2.
 270       hardcode_direct=unsupported
 271     fi
 272     ;;
 273
 274   # this was the old aix4 code, Reza Arbab says, it isn't working anymore (MM)
 275   #aix4*)
 276   #  hardcode_libdir_flag_spec='${wl}-b ${wl}nolibpath ${wl}-b ${wl}libpath:$libdir:/usr/lib:/lib'
 277   #  hardcode_libdir_separator=':'
 278   #  if test "$with_gcc" = yes; then
 279   #    collect2name=`${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$libdir'
 293   #      hardcode_libdir_separator=
 294   #    fi
 295   #    shared_flag='-shared'
 296   #  else
 297   #    shared_flag='${wl}-bM:SRE'
 298   #    hardcode_direct=yes
 299   #  fi
 300   #  allow_undefined_flag=' ${wl}-berok'
 301   #  archive_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${wl}-bexpall ${wl}-bnoentry${allow_undefined_flag}'
 302   #  archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${wl}-bE:$export_symbols ${wl}-bnoentry${allow_undefined_flag}'
 303   #  case "$host_os" in aix4.[01]|aix4.[01].*)
 304   #    # According to Greg Wooledge, -bexpall is only supported from AIX 4.2 on
 305   #    always_export_symbols=yes ;;
 306   #  esac
 307   #;;
 308
 309   aix4*)
 310     if test "$with_gcc" = yes; then
 311       # GNU compiler
 312       archive_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-G -o $lib'
 313       archive_expsym_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-G ${wl}-bE:$export_symbols -o $lib'
 314     else
 315       # IBM compiler (xlc).  Anything older than Visual Age C 5.0 probably won't work.
 316       archive_cmds='$CC -qmkshrobj $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-G -o $lib'
 317       archive_expsym_cmds='$CC -qmkshrobj $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-G ${wl}-bE:$export_symbols -o $lib'
 318     fi
 319
 320     hardcode_libdir_flag_spec='${wl}-bnolibpath ${wl}-blibpath:$libdir:/usr/lib:/lib'
 321     hardcode_libdir_separator=':'
 322     hardcode_direct=unsupported
 323     link_all_deplibs=yes
 324    ;;
 325
 326   amigaos*)
 327     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 $output_objdir && a2ixlibrary -32)'
 328     hardcode_libdir_flag_spec='-L$libdir'
 329     hardcode_minus_L=yes
 330     # see comment about different semantics on the GNU ld section
 331     ld_shlibs=no
 332     ;;
 333
 334   cygwin* | mingw*)
 335     # When not using gcc, we currently assume that we are using
 336     # Microsoft Visual C++.
 337     # hardcode_libdir_flag_spec is actually meaningless, as there is
 338     # no search path for DLLs.
 339     hardcode_libdir_flag_spec=' '
 340     allow_undefined_flag=unsupported
 341     # Tell ltmain to make .lib files, not .a files.
 342     libext=lib
 343     # FIXME: Setting linknames here is a bad hack.
 344     archive_cmds='$CC -o $lib $libobjs $compiler_flags `echo "$deplibs" | sed -e '\''s/ -lc$//'\''` -link -dll~linknames='
 345     # The linker will automatically build a .lib file if we build a DLL.
 346     old_archive_from_new_cmds='true'
 347     # FIXME: Should let the user specify the lib program.
 348     old_archive_cmds='lib /OUT:$oldlib$oldobjs$old_deplibs'
 349     fix_srcfile_path='`cygpath -w "$srcfile"`'
 350     ;;
 351
 352   freebsd1*)
 353     ld_shlibs=no
 354     ;;
 355
 356   # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor
 357   # support.  Future versions do this automatically, but an explicit c++rt0.o
 358   # does not break anything, and helps significantly (at the cost of a little
 359   # extra space).
 360   freebsd2.2*)
 361     archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags /usr/lib/c++rt0.o'
 362     hardcode_libdir_flag_spec='-R$libdir'
 363     hardcode_direct=yes
 364     hardcode_shlibpath_var=no
 365     ;;
 366
 367   # Unfortunately, older versions of FreeBSD 2 do not have this feature.
 368   freebsd2*)
 369     archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
 370     hardcode_direct=yes
 371     hardcode_minus_L=yes
 372     hardcode_shlibpath_var=no
 373     ;;
 374
 375   # FreeBSD 3 and greater uses gcc -shared to do shared libraries.
 376   freebsd*)
 377     archive_cmds='$CC -shared -o $lib $libobjs $deplibs $compiler_flags'
 378     hardcode_libdir_flag_spec='-R$libdir'
 379     hardcode_direct=yes
 380     hardcode_shlibpath_var=no
 381     skip_need_lc_check=yes
 382     ;;
 383
 384   hpux9* | hpux10* | hpux11*)
 385     case "$host_os" in
 386     hpux9*) archive_cmds='$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 $lib' ;;
 387     *) archive_cmds='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags' ;;
 388     esac
 389     hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
 390     hardcode_libdir_separator=:
 391     hardcode_direct=yes
 392     hardcode_minus_L=yes # Not in the search PATH, but as the default
 393                          # location of the library.
 394     export_dynamic_flag_spec='${wl}-E'
 395     ;;
 396
 397   irix5* | irix6*)
 398     if test "$with_gcc" = yes; then
 399       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 $lib'
 400     else
 401       archive_cmds='$LD -shared $libobjs $deplibs $linker_flags -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${objdir}/so_locations -o $lib'
 402     fi
 403     hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 404     hardcode_libdir_separator=:
 405     link_all_deplibs=yes
 406     ;;
 407
 408   netbsd*)
 409     if echo __ELF__ | $CC -E - | grep __ELF__ >/dev/null; then
 410       archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'  # a.out
 411     else
 412       archive_cmds='$LD -shared -o $lib $libobjs $deplibs $linker_flags'      # ELF
 413     fi
 414     hardcode_libdir_flag_spec='-R$libdir'
 415     hardcode_direct=yes
 416     hardcode_shlibpath_var=no
 417     ;;
 418
 419   newsos6)
 420     archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linkopts'
 421     hardcode_direct=yes
 422     hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 423     hardcode_libdir_separator=:
 424     hardcode_shlibpath_var=no
 425     ;;
 426
 427   openbsd*)
 428     archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
 429     hardcode_libdir_flag_spec='-R$libdir'
 430     hardcode_direct=yes
 431     hardcode_shlibpath_var=no
 432     ;;
 433
 434   os2*)
 435     hardcode_libdir_flag_spec='-L$libdir'
 436     hardcode_minus_L=yes
 437     allow_undefined_flag=unsupported
 438     archive_cmds='$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'
 439     old_archive_from_new_cmds='emximp -o $output_objdir/$libname.a $output_objdir/$libname.def'
 440     ;;
 441
 442   osf3*)
 443     if test "$with_gcc" = yes; then
 444       allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
 445       archive_cmds='$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 $lib'
 446     else
 447       allow_undefined_flag=' -expect_unresolved \*'
 448       archive_cmds='$LD -shared${allow_undefined_flag} $libobjs $deplibs $linker_flags -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${objdir}/so_locations -o $lib'
 449     fi
 450     hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 451     hardcode_libdir_separator=:
 452     ;;
 453
 454   osf4* | osf5*)        # as osf3* with the addition of -msym flag
 455     if test "$with_gcc" = yes; then
 456       allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
 457       archive_cmds='$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 $lib'
 458     else
 459       allow_undefined_flag=' -expect_unresolved \*'
 460       archive_cmds='$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'
 461       archive_expsym_cmds='for i in `cat $export_symbols`; do printf "-exported_symbol " >> $lib.exp; echo "\$i" >> $lib.exp; done; echo "-hidden">> $lib.exp~
 462       $LD -shared${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'
 463     fi
 464     hardcode_libdir_flag_spec='-rpath $libdir'
 465     hardcode_libdir_separator=:
 466     ;;
 467
 468   sco3.2v5*)
 469     archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
 470     hardcode_shlibpath_var=no
 471     runpath_var=LD_RUN_PATH
 472     hardcode_runpath_var=yes
 473     ;;
 474
 475   solaris*)
 476     no_undefined_flag=' -z text'
 477     # $CC -shared without GNU ld will not create a library from C++
 478     # object files and a static libstdc++, better avoid it by now
 479     archive_cmds='$LD -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $linker_flags'
 480     archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
 481                 $LD -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$rm $lib.exp'
 482     hardcode_libdir_flag_spec='-R$libdir'
 483     hardcode_shlibpath_var=no
 484     case "$host_os" in
 485     solaris2.[0-5] | solaris2.[0-5].*) ;;
 486     *) # Supported since Solaris 2.6 (maybe 2.5.1?)
 487       whole_archive_flag_spec='-z allextract$convenience -z defaultextract' ;;
 488     esac
 489     link_all_deplibs=yes
 490     ;;
 491
 492   sunos4*)
 493     archive_cmds='$LD -assert pure-text -Bstatic -o $lib $libobjs $deplibs $linker_flags'
 494     hardcode_libdir_flag_spec='-L$libdir'
 495     hardcode_direct=yes
 496     hardcode_minus_L=yes
 497     hardcode_shlibpath_var=no
 498     ;;
 499
 500   sysv4)
 501     archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
 502     runpath_var='LD_RUN_PATH'
 503     hardcode_shlibpath_var=no
 504     hardcode_direct=no #Motorola manual says yes, but my tests say they lie
 505     ;;
 506
 507   sysv4.3*)
 508     archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
 509     hardcode_shlibpath_var=no
 510     export_dynamic_flag_spec='-Bexport'
 511     ;;
 512
 513   sysv5*)
 514     no_undefined_flag=' -z text'
 515     # $CC -shared without GNU ld will not create a library from C++
 516     # object files and a static libstdc++, better avoid it by now
 517     archive_cmds='$LD -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $linker_flags'
 518     archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
 519                 $LD -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$rm $lib.exp'
 520     hardcode_libdir_flag_spec=
 521     hardcode_shlibpath_var=no
 522     runpath_var='LD_RUN_PATH'
 523     ;;
 524
 525   uts4*)
 526     archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
 527     hardcode_libdir_flag_spec='-L$libdir'
 528     hardcode_shlibpath_var=no
 529     ;;
 530
 531   dgux*)
 532     archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
 533     hardcode_libdir_flag_spec='-L$libdir'
 534     hardcode_shlibpath_var=no
 535     ;;
 536
 537   sysv4*MP*)
 538     if test -d /usr/nec; then
 539       archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
 540       hardcode_shlibpath_var=no
 541       runpath_var=LD_RUN_PATH
 542       hardcode_runpath_var=yes
 543       ld_shlibs=yes
 544     fi
 545     ;;
 546
 547   sysv4.2uw2*)
 548     archive_cmds='$LD -G -o $lib $libobjs $deplibs $linker_flags'
 549     hardcode_direct=yes
 550     hardcode_minus_L=no
 551     hardcode_shlibpath_var=no
 552     hardcode_runpath_var=yes
 553     runpath_var=LD_RUN_PATH
 554     ;;
 555
 556   unixware7*)
 557     archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
 558     runpath_var='LD_RUN_PATH'
 559     hardcode_shlibpath_var=no
 560     ;;
 561
 562   *)
 563     ld_shlibs=no
 564     ;;
 565   esac
 566 fi
 567
 568 ## Compiler Characteristics: PIC flags, static flags, etc
 569 if test "X${ac_cv_prog_cc_pic+set}" = Xset; then
 570   :
 571 else
 572   ac_cv_prog_cc_pic=
 573   ac_cv_prog_cc_shlib=
 574   ac_cv_prog_cc_wl=
 575   ac_cv_prog_cc_static=
 576   ac_cv_prog_cc_no_builtin=
 577   ac_cv_prog_cc_can_build_shared=$can_build_shared
 578
 579   if test "$with_gcc" = yes; then
 580     ac_cv_prog_cc_wl='-Wl,'
 581     ac_cv_prog_cc_static='-static'
 582
 583     case "$host_os" in
 584     beos* | irix5* | irix6* | osf3* | osf4* | osf5*)
 585       # PIC is the default for these OSes.
 586       ;;
 587     aix*)
 588       # Below there is a dirty hack to force normal static linking with -ldl
 589       # The problem is because libdl dynamically linked with both libc and
 590       # libC (AIX C++ library), which obviously doesn't included in libraries
 591       # list by gcc. This cause undefined symbols with -static flags.
 592       # This hack allows C programs to be linked with "-static -ldl", but
 593       # we not sure about C++ programs.
 594       ac_cv_prog_cc_static="$ac_cv_prog_cc_static ${ac_cv_prog_cc_wl}-lC"
 595       ;;
 596     cygwin* | mingw* | os2*)
 597       # This hack is so that the source file can tell whether it is being
 598       # built for inclusion in a dll (and should export symbols for example).
 599       ac_cv_prog_cc_pic='-DDLL_EXPORT'
 600       ;;
 601     amigaos*)
 602       # FIXME: we need at least 68020 code to build shared libraries, but
 603       # adding the `-m68020' flag to GCC prevents building anything better,
 604       # like `-m68040'.
 605       ac_cv_prog_cc_pic='-m68020 -resident32 -malways-restore-a4'
 606       ;;
 607     sysv4*MP*)
 608       if test -d /usr/nec; then
 609          ac_cv_prog_cc_pic=-Kconform_pic
 610       fi
 611       ;;
 612     *)
 613       ac_cv_prog_cc_pic='-fPIC'
 614       ;;
 615     esac
 616   else
 617     # PORTME Check for PIC flags for the system compiler.
 618     case "$host_os" in
 619     aix3* | aix4*)
 620      # All AIX code is PIC.
 621       ac_cv_prog_cc_static='-bnso -bI:/lib/syscalls.exp'
 622       ;;
 623
 624     hpux9* | hpux10* | hpux11*)
 625       # Is there a better ac_cv_prog_cc_static that works with the bundled CC?
 626       ac_cv_prog_cc_wl='-Wl,'
 627       ac_cv_prog_cc_static="${ac_cv_prog_cc_wl}-a ${ac_cv_prog_cc_wl}archive"
 628       ac_cv_prog_cc_pic='+Z'
 629       ;;
 630
 631     irix5* | irix6*)
 632       ac_cv_prog_cc_wl='-Wl,'
 633       ac_cv_prog_cc_static='-non_shared'
 634       # PIC (with -KPIC) is the default.
 635       ;;
 636
 637     cygwin* | mingw* | os2*)
 638       # This hack is so that the source file can tell whether it is being
 639       # built for inclusion in a dll (and should export symbols for example).
 640       ac_cv_prog_cc_pic='-DDLL_EXPORT'
 641       ;;
 642
 643     newsos6)
 644       ac_cv_prog_cc_pic='-KPIC'
 645       ac_cv_prog_cc_static='-Bstatic'
 646       ;;
 647
 648     osf3* | osf4* | osf5*)
 649       # All OSF/1 code is PIC.
 650       ac_cv_prog_cc_wl='-Wl,'
 651       ac_cv_prog_cc_static='-non_shared'
 652       ;;
 653
 654     sco3.2v5*)
 655       ac_cv_prog_cc_pic='-Kpic'
 656       ac_cv_prog_cc_static='-dn'
 657       ac_cv_prog_cc_shlib='-belf'
 658       ;;
 659
 660     solaris*)
 661       ac_cv_prog_cc_pic='-KPIC'
 662       ac_cv_prog_cc_static='-Bstatic'
 663       ac_cv_prog_cc_wl='-Wl,'
 664       ;;
 665
 666     sunos4*)
 667       ac_cv_prog_cc_pic='-PIC'
 668       ac_cv_prog_cc_static='-Bstatic'
 669       ac_cv_prog_cc_wl='-Qoption ld '
 670       ;;
 671
 672     sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
 673       ac_cv_prog_cc_pic='-KPIC'
 674       ac_cv_prog_cc_static='-Bstatic'
 675       ac_cv_prog_cc_wl='-Wl,'
 676       ;;
 677
 678     uts4*)
 679       ac_cv_prog_cc_pic='-pic'
 680       ac_cv_prog_cc_static='-Bstatic'
 681       ;;
 682
 683     sysv4*MP*)
 684       if test -d /usr/nec ;then
 685         ac_cv_prog_cc_pic='-Kconform_pic'
 686         ac_cv_prog_cc_static='-Bstatic'
 687       fi
 688       ;;
 689
 690     *)
 691       ac_cv_prog_cc_can_build_shared=no
 692       ;;
 693     esac
 694   fi
 695   ac_cv_prog_cc_pic="$ac_cv_prog_cc_pic -DPIC"
 696 fi
 697
 698 need_lc=yes
 699 if test "$enable_shared" = yes && test "$with_gcc" = yes; then
 700   case "$archive_cmds" in
 701   *'~'*)
 702     # FIXME: we may have to deal with multi-command sequences.
 703     ;;
 704   '$CC '*)
 705     # Test whether the compiler implicitly links with -lc since on some
 706     # systems, -lgcc has to come before -lc. If gcc already passes -lc
 707     # to ld, don't add -lc before -lgcc.
 708     echo $ac_n "checking whether -lc should be explicitly linked in... $ac_c" 1>&6
 709     if eval "test \"`echo '$''{'ac_cv_archive_cmds_needs_lc'+set}'`\" = set"; then
 710       echo $ac_n "(cached) $ac_c" 1>&6
 711       need_lc=$ac_cv_archive_cmds_needs_lc
 712     elif test "x$skip_need_lc_check" = "xyes" ; then
 713       echo $ac_n "(skipping, using no) $ac_c" 1>&6
 714       need_lc=no
 715     else
 716       $rm conftest*
 717       echo "static int dummy;" > conftest.$ac_ext
 718       if { (eval echo ltcf-c.sh:need_lc: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>conftest.err; }; then
 719         # Append any warnings to the config.log.
 720         cat conftest.err 1>&5
 721         soname=conftest
 722         lib=conftest
 723         libobjs=conftest.$ac_objext
 724         deplibs=
 725         wl=$ac_cv_prog_cc_wl
 726         compiler_flags=-v
 727         linker_flags=-v
 728         verstring=
 729         output_objdir=.
 730         libname=conftest
 731         save_allow_undefined_flag=$allow_undefined_flag
 732         allow_undefined_flag=
 733         if { (eval echo ltcf-c.sh:need_lc: \"$archive_cmds\") 1>&5; (eval $archive_cmds) 2>&1 | grep " -lc " 1>&5 ; }; then
 734           need_lc=no
 735         fi
 736         allow_undefined_flag=$save_allow_undefined_flag
 737       else
 738         cat conftest.err 1>&5
 739       fi
 740     fi
 741     $rm conftest*
 742     echo "$ac_t$need_lc" 1>&6
 743     ;;
 744   esac
 745 fi
 746 ac_cv_archive_cmds_needs_lc=$need_lc