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 $dir/$soname > $output_objdir/$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 $lib '$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 $lib '$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 $output_objdir/$soname-exp '$lt_cv_cc_dll_switch' -Wl,-e,'$dll_entry' -o $lib '$ltdll_obj'$libobjs $deplibs $compiler_flags'
 174     ;;
 175
 176   darwin*|rhapsody*)
 177     allow_undefined_flag='-undefined warning'
 178     archive_cmds='$CC $(if test "$module" = "yes"; then echo -bundle; else
 179       echo -dynamiclib; fi) -o $lib $libobjs $deplibs $linkopts'
 180     archive_expsym_cmds="$archive_cmds"' && strip -s $export_symbols'
 181     ## What we need is to hardcode the path to the library, not the search path
 182     #hardcode_direct=yes
 183     #hardcode_libdir_flag_spec='-install_name $libdir/$lib'
 184     hardcode_shlibpath_var=no
 185     whole_archive_flag_spec='-all_load'
 186     ;;
 187
 188   netbsd*)
 189     if echo __ELF__ | $CC -E - | grep __ELF__ >/dev/null; then
 190       archive_cmds='$LD -Bshareable $libobjs $deplibs $linker_flags -o $lib'
 191       wlarc=
 192     else
 193       archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
 194       archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
 195     fi
 196     ;;
 197
 198   solaris* | sysv5*)
 199     if $LD -v 2>&1 | egrep 'BFD 2\.8' > /dev/null; then
 200       ld_shlibs=no
 201       cat <<EOF 1>&2
 202
 203 *** Warning: The releases 2.8.* of the GNU linker cannot reliably
 204 *** create shared libraries on Solaris systems.  Therefore, libtool
 205 *** is disabling shared libraries support.  We urge you to upgrade GNU
 206 *** binutils to release 2.9.1 or newer.  Another option is to modify
 207 *** your PATH or compiler configuration so that the native linker is
 208 *** used, and then restart.
 209
 210 EOF
 211     elif $LD --help 2>&1 | egrep ': supported targets:.* elf' > /dev/null; then
 212       archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
 213       archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
 214     else
 215       ld_shlibs=no
 216     fi
 217     ;;
 218
 219   sunos4*)
 220     archive_cmds='$LD -assert pure-text -Bshareable -o $lib $libobjs $deplibs $linker_flags'
 221     wlarc=
 222     hardcode_direct=yes
 223     hardcode_shlibpath_var=no
 224     ;;
 225
 226   *)
 227     if $LD --help 2>&1 | egrep ': supported targets:.* elf' > /dev/null; then
 228       archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
 229       archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
 230     else
 231       ld_shlibs=no
 232     fi
 233     ;;
 234   esac
 235
 236   if test "$ld_shlibs" = yes; then
 237     runpath_var=LD_RUN_PATH
 238     hardcode_libdir_flag_spec='${wl}--rpath ${wl}$libdir'
 239     export_dynamic_flag_spec='${wl}--export-dynamic'
 240     case $host_os in
 241     cygwin* | mingw*)
 242       # dlltool doesn't understand --whole-archive et. al.
 243       whole_archive_flag_spec=
 244       ;;
 245     *)
 246       # ancient GNU ld didn't support --whole-archive et. al.
 247       if $LD --help 2>&1 | egrep 'no-whole-archive' > /dev/null; then
 248         whole_archive_flag_spec="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
 249       else
 250         whole_archive_flag_spec=
 251       fi
 252       ;;
 253     esac
 254   fi
 255 else
 256   # PORTME fill in a description of your system's linker (not GNU ld)
 257   case $host_os in
 258   aix3*)
 259     allow_undefined_flag=unsupported
 260     always_export_symbols=yes
 261     archive_expsym_cmds='$LD -o $output_objdir/$soname $libobjs $deplibs $linker_flags -bE:$export_symbols -T512 -H512 -bM:SRE~$AR $AR_FLAGS $lib $output_objdir/$soname'
 262     # Note: this linker hardcodes the directories in LIBPATH if there
 263     # are no directories specified by -L.
 264     hardcode_minus_L=yes
 265     if test "$with_gcc" = yes && test -z "$link_static_flag"; then
 266       # Neither direct hardcoding nor static linking is supported with a
 267       # broken collect2.
 268       hardcode_direct=unsupported
 269     fi
 270     ;;
 271
 272   aix4* | aix5*)
 273     hardcode_direct=yes
 274     hardcode_libdir_separator=':'
 275     link_all_deplibs=yes
 276     # When large executables or shared objects are built, AIX ld can
 277     # have problems creating the table of contents.  If linking a library
 278     # or program results in "error TOC overflow" add -mminimal-toc to
 279     # CXXFLAGS/CFLAGS for g++/gcc.  In the cases where that is not
 280     # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
 281     if test "$with_gcc" = yes; then
 282       case $host_os in aix4.[012]|aix4.[012].*)
 283       # We only want to do this on AIX 4.2 and lower, the check
 284       # below for broken collect2 doesn't work under 4.3+
 285         collect2name=`${CC} -print-prog-name=collect2`
 286         if test -f "$collect2name" && \
 287            strings "$collect2name" | grep resolve_lib_name >/dev/null
 288         then
 289           # We have reworked collect2
 290           hardcode_direct=yes
 291         else
 292           # We have old collect2
 293           hardcode_direct=unsupported
 294           # It fails to find uninstalled libraries when the uninstalled
 295           # path is not listed in the libpath.  Setting hardcode_minus_L
 296           # to unsupported forces relinking
 297           hardcode_minus_L=yes
 298           hardcode_libdir_flag_spec='-L$libdir'
 299           hardcode_libdir_separator=
 300         fi
 301       esac
 302       shared_flag='-shared'
 303     else
 304       # not using gcc
 305       if test "$host_cpu" = ia64; then
 306         shared_flag='${wl}-G'
 307       else
 308         shared_flag='${wl}-bM:SRE'
 309       fi
 310     fi
 311
 312     if test "$host_cpu" = ia64; then
 313       # On IA64, the linker does run time linking by default, so we don't
 314       # have to do anything special.
 315       aix_use_runtimelinking=no
 316       exp_sym_flag='-Bexport'
 317       no_entry_flag=""
 318     else
 319       # Test if we are trying to use run time linking, or normal AIX style linking.
 320       # If -brtl is somewhere in LDFLAGS, we need to do run time linking.
 321       aix_use_runtimelinking=no
 322       for ld_flag in $LDFLAGS; do
 323         if (test $ld_flag = "-brtl" || test $ld_flag = "-Wl,-brtl" ); then
 324           aix_use_runtimelinking=yes
 325           break
 326         fi
 327       done
 328       exp_sym_flag='-bexport'
 329       no_entry_flag='-bnoentry'
 330     fi
 331     # -bexpall does not export symbols beginning with underscore (_)
 332     always_export_symbols=yes
 333     if test "$aix_use_runtimelinking" = yes; then
 334       # Warning - without using the other run time loading flags (-brtl), -berok will
 335       #           link without error, but may produce a broken library.
 336       allow_undefined_flag=' ${wl}-berok'
 337       hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:/usr/lib:/lib'
 338       archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${allow_undefined_flag} '"\${wl}$no_entry_flag \${wl}$exp_sym_flag:\$export_symbols"
 339     else
 340       if test "$host_cpu" = ia64; then
 341         hardcode_libdir_flag_spec='${wl}-R $libdir:/usr/lib:/lib'
 342         allow_undefined_flag="-z nodefs"
 343         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"
 344       else
 345         allow_undefined_flag=' ${wl}-berok'
 346         # -bexpall does not export symbols beginning with underscore (_)
 347         always_export_symbols=yes
 348         # Exported symbols can be pulled into shared objects from archives
 349         whole_archive_flag_spec=' '
 350         build_libtool_need_lc=yes
 351         hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:/usr/lib:/lib'
 352         # This is similar to how AIX traditionally builds it's shared libraries.
 353         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'
 354       fi
 355     fi
 356     ;;
 357
 358   amigaos*)
 359     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 $output_objdir && a2ixlibrary -32)'
 360     hardcode_libdir_flag_spec='-L$libdir'
 361     hardcode_minus_L=yes
 362     # see comment about different semantics on the GNU ld section
 363     ld_shlibs=no
 364     ;;
 365
 366   cygwin* | mingw*)
 367     # When not using gcc, we currently assume that we are using
 368     # Microsoft Visual C++.
 369     # hardcode_libdir_flag_spec is actually meaningless, as there is
 370     # no search path for DLLs.
 371     hardcode_libdir_flag_spec=' '
 372     allow_undefined_flag=unsupported
 373     # Tell ltmain to make .lib files, not .a files.
 374     libext=lib
 375     # FIXME: Setting linknames here is a bad hack.
 376     archive_cmds='$CC -o $lib $libobjs $compiler_flags `echo "$deplibs" | sed -e '\''s/ -lc$//'\''` -link -dll~linknames='
 377     # The linker will automatically build a .lib file if we build a DLL.
 378     old_archive_from_new_cmds='true'
 379     # FIXME: Should let the user specify the lib program.
 380     old_archive_cmds='lib /OUT:$oldlib$oldobjs$old_deplibs'
 381     fix_srcfile_path='`cygpath -w "$srcfile"`'
 382     ;;
 383
 384   freebsd1*)
 385     ld_shlibs=no
 386     ;;
 387
 388   # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor
 389   # support.  Future versions do this automatically, but an explicit c++rt0.o
 390   # does not break anything, and helps significantly (at the cost of a little
 391   # extra space).
 392   freebsd2.2*)
 393     archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags /usr/lib/c++rt0.o'
 394     hardcode_libdir_flag_spec='-R$libdir'
 395     hardcode_direct=yes
 396     hardcode_shlibpath_var=no
 397     ;;
 398
 399   # Unfortunately, older versions of FreeBSD 2 do not have this feature.
 400   freebsd2*)
 401     archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
 402     hardcode_direct=yes
 403     hardcode_minus_L=yes
 404     hardcode_shlibpath_var=no
 405     ;;
 406
 407   # FreeBSD 3 and greater uses gcc -shared to do shared libraries.
 408   freebsd*)
 409     archive_cmds='$CC -shared -o $lib $libobjs $deplibs $compiler_flags'
 410     hardcode_libdir_flag_spec='-R$libdir'
 411     hardcode_direct=yes
 412     hardcode_shlibpath_var=no
 413     ;;
 414
 415   hpux9* | hpux10* | hpux11*)
 416     case $host_os in
 417     hpux9*) archive_cmds='$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 $lib' ;;
 418     *) archive_cmds='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags' ;;
 419     esac
 420     hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
 421     hardcode_libdir_separator=:
 422     hardcode_direct=yes
 423     hardcode_minus_L=yes # Not in the search PATH, but as the default
 424                          # location of the library.
 425     export_dynamic_flag_spec='${wl}-E'
 426     ;;
 427
 428   irix5* | irix6*)
 429     if test "$with_gcc" = yes; then
 430       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 $lib'
 431     else
 432       archive_cmds='$LD -shared $libobjs $deplibs $linker_flags -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${objdir}/so_locations -o $lib'
 433     fi
 434     hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 435     hardcode_libdir_separator=:
 436     link_all_deplibs=yes
 437     ;;
 438
 439   netbsd*)
 440     if echo __ELF__ | $CC -E - | grep __ELF__ >/dev/null; then
 441       archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'  # a.out
 442     else
 443       archive_cmds='$LD -shared -o $lib $libobjs $deplibs $linker_flags'      # ELF
 444     fi
 445     hardcode_libdir_flag_spec='-R$libdir'
 446     hardcode_direct=yes
 447     hardcode_shlibpath_var=no
 448     ;;
 449
 450   newsos6)
 451     archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linkopts'
 452     hardcode_direct=yes
 453     hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 454     hardcode_libdir_separator=:
 455     hardcode_shlibpath_var=no
 456     ;;
 457
 458   openbsd*)
 459     archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
 460     hardcode_libdir_flag_spec='-R$libdir'
 461     hardcode_direct=yes
 462     hardcode_shlibpath_var=no
 463     ;;
 464
 465   os2*)
 466     hardcode_libdir_flag_spec='-L$libdir'
 467     hardcode_minus_L=yes
 468     allow_undefined_flag=unsupported
 469     archive_cmds='$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'
 470     old_archive_from_new_cmds='emximp -o $output_objdir/$libname.a $output_objdir/$libname.def'
 471     ;;
 472
 473   osf3*)
 474     if test "$with_gcc" = yes; then
 475       allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
 476       archive_cmds='$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 $lib'
 477     else
 478       allow_undefined_flag=' -expect_unresolved \*'
 479       archive_cmds='$LD -shared${allow_undefined_flag} $libobjs $deplibs $linker_flags -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${objdir}/so_locations -o $lib'
 480     fi
 481     hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 482     hardcode_libdir_separator=:
 483     ;;
 484
 485   osf4* | osf5*)        # as osf3* with the addition of -msym flag
 486     if test "$with_gcc" = yes; then
 487       allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
 488       archive_cmds='$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 $lib'
 489     else
 490       allow_undefined_flag=' -expect_unresolved \*'
 491       archive_cmds='$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'
 492       archive_expsym_cmds='for i in `cat $export_symbols`; do printf "-exported_symbol " >> $lib.exp; echo "\$i" >> $lib.exp; done; echo "-hidden">> $lib.exp~
 493       $LD -shared${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'
 494     fi
 495     hardcode_libdir_flag_spec='-rpath $libdir'
 496     hardcode_libdir_separator=:
 497     ;;
 498
 499   sco3.2v5*)
 500     archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
 501     hardcode_shlibpath_var=no
 502     runpath_var=LD_RUN_PATH
 503     hardcode_runpath_var=yes
 504     ;;
 505
 506   solaris*)
 507     no_undefined_flag=' -z text'
 508     # $CC -shared without GNU ld will not create a library from C++
 509     # object files and a static libstdc++, better avoid it by now
 510     archive_cmds='$LD -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $linker_flags'
 511     archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
 512                 $LD -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$rm $lib.exp'
 513     hardcode_libdir_flag_spec='-R$libdir'
 514     hardcode_shlibpath_var=no
 515     case $host_os in
 516     solaris2.[0-5] | solaris2.[0-5].*) ;;
 517     *) # Supported since Solaris 2.6 (maybe 2.5.1?)
 518       whole_archive_flag_spec='-z allextract$convenience -z defaultextract' ;;
 519     esac
 520     link_all_deplibs=yes
 521     ;;
 522
 523   sunos4*)
 524     archive_cmds='$LD -assert pure-text -Bstatic -o $lib $libobjs $deplibs $linker_flags'
 525     hardcode_libdir_flag_spec='-L$libdir'
 526     hardcode_direct=yes
 527     hardcode_minus_L=yes
 528     hardcode_shlibpath_var=no
 529     ;;
 530
 531   sysv4)
 532     archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
 533     runpath_var='LD_RUN_PATH'
 534     hardcode_shlibpath_var=no
 535     hardcode_direct=no #Motorola manual says yes, but my tests say they lie
 536     ;;
 537
 538   sysv4.3*)
 539     archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
 540     hardcode_shlibpath_var=no
 541     export_dynamic_flag_spec='-Bexport'
 542     ;;
 543
 544   sysv5*)
 545     no_undefined_flag=' -z text'
 546     # $CC -shared without GNU ld will not create a library from C++
 547     # object files and a static libstdc++, better avoid it by now
 548     archive_cmds='$LD -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $linker_flags'
 549     archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
 550                 $LD -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$rm $lib.exp'
 551     hardcode_libdir_flag_spec=
 552     hardcode_shlibpath_var=no
 553     runpath_var='LD_RUN_PATH'
 554     ;;
 555
 556   uts4*)
 557     archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
 558     hardcode_libdir_flag_spec='-L$libdir'
 559     hardcode_shlibpath_var=no
 560     ;;
 561
 562   dgux*)
 563     archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
 564     hardcode_libdir_flag_spec='-L$libdir'
 565     hardcode_shlibpath_var=no
 566     ;;
 567
 568   sysv4*MP*)
 569     if test -d /usr/nec; then
 570       archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
 571       hardcode_shlibpath_var=no
 572       runpath_var=LD_RUN_PATH
 573       hardcode_runpath_var=yes
 574       ld_shlibs=yes
 575     fi
 576     ;;
 577
 578   sysv4.2uw2*)
 579     archive_cmds='$LD -G -o $lib $libobjs $deplibs $linker_flags'
 580     hardcode_direct=yes
 581     hardcode_minus_L=no
 582     hardcode_shlibpath_var=no
 583     hardcode_runpath_var=yes
 584     runpath_var=LD_RUN_PATH
 585     ;;
 586
 587   unixware7*)
 588     archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
 589     runpath_var='LD_RUN_PATH'
 590     hardcode_shlibpath_var=no
 591     ;;
 592
 593   *)
 594     ld_shlibs=no
 595     ;;
 596   esac
 597 fi
 598
 599 ## Compiler Characteristics: PIC flags, static flags, etc
 600 if test "X${ac_cv_prog_cc_pic+set}" = Xset; then
 601   :
 602 else
 603   ac_cv_prog_cc_pic=
 604   ac_cv_prog_cc_shlib=
 605   ac_cv_prog_cc_wl=
 606   ac_cv_prog_cc_static=
 607   ac_cv_prog_cc_no_builtin=
 608   ac_cv_prog_cc_can_build_shared=$can_build_shared
 609
 610   if test "$with_gcc" = yes; then
 611     ac_cv_prog_cc_wl='-Wl,'
 612     ac_cv_prog_cc_static='-static'
 613
 614     case $host_os in
 615     beos* | irix5* | irix6* | osf3* | osf4* | osf5*)
 616       # PIC is the default for these OSes.
 617       ;;
 618     aix*)
 619       # All AIX code is PIC.
 620       if test "$host_cpu" = ia64; then
 621         # AIX 5 now supports IA64 processor
 622         lt_cv_prog_cc_static='-Bstatic'
 623       else
 624         lt_cv_prog_cc_static='-bnso -bI:/lib/syscalls.exp'
 625       fi
 626       ;;
 627     *djgpp*)
 628       # DJGPP does not support shared libraries at all
 629       ac_cv_prog_cc_pic=
 630       ;;
 631     cygwin* | mingw* | os2*)
 632       # This hack is so that the source file can tell whether it is being
 633       # built for inclusion in a dll (and should export symbols for example).
 634       ac_cv_prog_cc_pic='-DDLL_EXPORT'
 635       ;;
 636     amigaos*)
 637       # FIXME: we need at least 68020 code to build shared libraries, but
 638       # adding the `-m68020' flag to GCC prevents building anything better,
 639       # like `-m68040'.
 640       ac_cv_prog_cc_pic='-m68020 -resident32 -malways-restore-a4'
 641       ;;
 642     sysv4*MP*)
 643       if test -d /usr/nec; then
 644          ac_cv_prog_cc_pic=-Kconform_pic
 645       fi
 646       ;;
 647     *)
 648       ac_cv_prog_cc_pic='-fPIC'
 649       ;;
 650     esac
 651   else
 652     # PORTME Check for PIC flags for the system compiler.
 653     case $host_os in
 654     aix*)
 655      # All AIX code is PIC.
 656       ac_cv_prog_cc_static="$ac_cv_prog_cc_static ${ac_cv_prog_cc_wl}-lC"
 657       ;;
 658
 659     hpux9* | hpux10* | hpux11*)
 660       # Is there a better ac_cv_prog_cc_static that works with the bundled CC?
 661       ac_cv_prog_cc_wl='-Wl,'
 662       ac_cv_prog_cc_static="${ac_cv_prog_cc_wl}-a ${ac_cv_prog_cc_wl}archive"
 663       ac_cv_prog_cc_pic='+Z'
 664       ;;
 665
 666     irix5* | irix6*)
 667       ac_cv_prog_cc_wl='-Wl,'
 668       ac_cv_prog_cc_static='-non_shared'
 669       # PIC (with -KPIC) is the default.
 670       ;;
 671
 672     cygwin* | mingw* | os2*)
 673       # This hack is so that the source file can tell whether it is being
 674       # built for inclusion in a dll (and should export symbols for example).
 675       ac_cv_prog_cc_pic='-DDLL_EXPORT'
 676       ;;
 677
 678     newsos6)
 679       ac_cv_prog_cc_pic='-KPIC'
 680       ac_cv_prog_cc_static='-Bstatic'
 681       ;;
 682
 683     osf3* | osf4* | osf5*)
 684       # All OSF/1 code is PIC.
 685       ac_cv_prog_cc_wl='-Wl,'
 686       ac_cv_prog_cc_static='-non_shared'
 687       ;;
 688
 689     sco3.2v5*)
 690       ac_cv_prog_cc_pic='-Kpic'
 691       ac_cv_prog_cc_static='-dn'
 692       ac_cv_prog_cc_shlib='-belf'
 693       ;;
 694
 695     solaris*)
 696       ac_cv_prog_cc_pic='-KPIC'
 697       ac_cv_prog_cc_static='-Bstatic'
 698       ac_cv_prog_cc_wl='-Wl,'
 699       ;;
 700
 701     sunos4*)
 702       ac_cv_prog_cc_pic='-PIC'
 703       ac_cv_prog_cc_static='-Bstatic'
 704       ac_cv_prog_cc_wl='-Qoption ld '
 705       ;;
 706
 707     sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
 708       ac_cv_prog_cc_pic='-KPIC'
 709       ac_cv_prog_cc_static='-Bstatic'
 710       ac_cv_prog_cc_wl='-Wl,'
 711       ;;
 712
 713     uts4*)
 714       ac_cv_prog_cc_pic='-pic'
 715       ac_cv_prog_cc_static='-Bstatic'
 716       ;;
 717
 718     sysv4*MP*)
 719       if test -d /usr/nec ;then
 720         ac_cv_prog_cc_pic='-Kconform_pic'
 721         ac_cv_prog_cc_static='-Bstatic'
 722       fi
 723       ;;
 724
 725     *)
 726       ac_cv_prog_cc_can_build_shared=no
 727       ;;
 728     esac
 729   fi
 730   case "$host_os" in
 731       # Platforms which do not suport PIC and -DPIC is meaningless
 732       # on them:
 733       *djgpp*)
 734         ac_cv_prog_cc_pic=
 735         ;;
 736       *)
 737         ac_cv_prog_cc_pic="$ac_cv_prog_cc_pic -DPIC"
 738         ;;
 739   esac
 740 fi
 741
 742 need_lc=yes
 743 if test "$enable_shared" = yes && test "$with_gcc" = yes; then
 744   case $archive_cmds in
 745   *'~'*)
 746     # FIXME: we may have to deal with multi-command sequences.
 747     ;;
 748   '$CC '*)
 749     # Test whether the compiler implicitly links with -lc since on some
 750     # systems, -lgcc has to come before -lc. If gcc already passes -lc
 751     # to ld, don't add -lc before -lgcc.
 752     echo $ac_n "checking whether -lc should be explicitly linked in... $ac_c" 1>&6
 753     if eval "test \"`echo '$''{'ac_cv_archive_cmds_needs_lc'+set}'`\" = set"; then
 754       echo $ac_n "(cached) $ac_c" 1>&6
 755       need_lc=$ac_cv_archive_cmds_needs_lc
 756     else
 757       $rm conftest*
 758       echo "static int dummy;" > conftest.$ac_ext
 759       if { (eval echo ltcf-c.sh:need_lc: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>conftest.err; }; then
 760         # Append any warnings to the config.log.
 761         cat conftest.err 1>&5
 762         soname=conftest
 763         lib=conftest
 764         libobjs=conftest.$ac_objext
 765         deplibs=
 766         wl=$ac_cv_prog_cc_wl
 767         compiler_flags=-v
 768         linker_flags=-v
 769         verstring=
 770         output_objdir=.
 771         libname=conftest
 772         save_allow_undefined_flag=$allow_undefined_flag
 773         allow_undefined_flag=
 774         if { (eval echo ltcf-c.sh:need_lc: \"$archive_cmds\") 1>&5; (eval $archive_cmds) 2>&1 | grep " -lc " 1>&5 ; }; then
 775           need_lc=no
 776         fi
 777         allow_undefined_flag=$save_allow_undefined_flag
 778       else
 779         cat conftest.err 1>&5
 780       fi
 781     fi
 782     $rm conftest*
 783     echo "$ac_t$need_lc" 1>&6
 784     ;;
 785   esac
 786 fi
 787 ac_cv_archive_cmds_needs_lc=$need_lc