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.
29ac_ext=c
30
31# Object file extension for compiled C test sources.
32objext=o
33
34# Code to be used in simple compile tests
35lt_simple_compile_test_code="int some_variable = 0;"
36
37# Code to be used in simple link tests
38lt_simple_link_test_code='main(){return(0);}'
39
40## Linker Characteristics
41case $host_os in
42cygwin* | mingw*)
43  # FIXME: the MSVC++ port hasn't been tested in a loooong time
44  # When not using gcc, we currently assume that we are using
45  # Microsoft Visual C++.
46  if test "$with_gcc" != yes; then
47    with_gnu_ld=no
48  fi
49  ;;
50
51esac
52
53ld_shlibs=yes
54if 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
72EOF
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
200EOF
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  *)
217    if $LD --help 2>&1 | egrep ': supported targets:.* elf' > /dev/null; then
218      archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
219      archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
220    else
221      ld_shlibs=no
222    fi
223    ;;
224  esac
225
226  if test "$ld_shlibs" = yes; then
227    runpath_var=LD_RUN_PATH
228    hardcode_libdir_flag_spec='${wl}--rpath ${wl}$libdir'
229    export_dynamic_flag_spec='${wl}--export-dynamic'
230    case $host_os in
231    cygwin* | mingw*)
232      # dlltool doesn't understand --whole-archive et. al.
233      whole_archive_flag_spec=
234      ;;
235    *)
236      # ancient GNU ld didn't support --whole-archive et. al.
237      if $LD --help 2>&1 | egrep 'no-whole-archive' > /dev/null; then
238	whole_archive_flag_spec="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
239      else
240	whole_archive_flag_spec=
241      fi
242      ;;
243    esac
244  fi
245else
246  # PORTME fill in a description of your system's linker (not GNU ld)
247  case $host_os in
248  aix3*)
249    allow_undefined_flag=unsupported
250    always_export_symbols=yes
251    archive_expsym_cmds='$LD -o $output_objdir/$soname $libobjs $deplibs $linker_flags -bE:$export_symbols -T512 -H512 -bM:SRE~$AR $AR_FLAGS $lib $output_objdir/$soname'
252    # Note: this linker hardcodes the directories in LIBPATH if there
253    # are no directories specified by -L.
254    hardcode_minus_L=yes
255    if test "$with_gcc" = yes && test -z "$link_static_flag"; then
256      # Neither direct hardcoding nor static linking is supported with a
257      # broken collect2.
258      hardcode_direct=unsupported
259    fi
260    ;;
261
262  aix4* | aix5*)
263    hardcode_direct=yes
264    hardcode_libdir_separator=':'
265    link_all_deplibs=yes
266    # When large executables or shared objects are built, AIX ld can
267    # have problems creating the table of contents.  If linking a library
268    # or program results in "error TOC overflow" add -mminimal-toc to
269    # CXXFLAGS/CFLAGS for g++/gcc.  In the cases where that is not
270    # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
271    if test "$with_gcc" = yes; then
272      case $host_os in aix4.[012]|aix4.[012].*)
273      # We only want to do this on AIX 4.2 and lower, the check
274      # below for broken collect2 doesn't work under 4.3+
275        collect2name=`${CC} -print-prog-name=collect2`
276        if test -f "$collect2name" && \
277	   strings "$collect2name" | grep resolve_lib_name >/dev/null
278        then
279	  # We have reworked collect2
280	  hardcode_direct=yes
281        else
282	  # We have old collect2
283	  hardcode_direct=unsupported
284	  # It fails to find uninstalled libraries when the uninstalled
285	  # path is not listed in the libpath.  Setting hardcode_minus_L
286	  # to unsupported forces relinking
287	  hardcode_minus_L=yes
288	  hardcode_libdir_flag_spec='-L$libdir'
289	  hardcode_libdir_separator=
290        fi
291      esac
292      shared_flag='-shared'
293    else
294      # not using gcc
295      if test "$host_cpu" = ia64; then
296        shared_flag='${wl}-G'
297      else
298        shared_flag='${wl}-bM:SRE'
299      fi
300    fi
301
302    if test "$host_cpu" = ia64; then
303      # On IA64, the linker does run time linking by default, so we don't
304      # have to do anything special.
305      aix_use_runtimelinking=no
306      if test $with_gnu_ld = no; then
307        exp_sym_flag='-Bexport'
308        no_entry_flag=""
309      fi
310    else
311      # Test if we are trying to use run time linking, or normal AIX style linking.
312      # If -brtl is somewhere in LDFLAGS, we need to do run time linking.
313      aix_use_runtimelinking=no
314      for ld_flag in $LDFLAGS; do
315        if (test $ld_flag = "-brtl" || test $ld_flag = "-Wl,-brtl" ); then
316          aix_use_runtimelinking=yes
317          break
318        fi
319      done
320      exp_sym_flag='-bexport'
321      no_entry_flag='-bnoentry'
322    fi
323    # -bexpall does not export symbols beginning with underscore (_)
324    always_export_symbols=yes
325    if test "$aix_use_runtimelinking" = yes; then
326      # Warning - without using the other run time loading flags (-brtl), -berok will
327      #           link without error, but may produce a broken library.
328      allow_undefined_flag=' ${wl}-berok'
329      hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:/usr/lib:/lib'
330      archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${allow_undefined_flag} '"\${wl}$no_entry_flag \${wl}$exp_sym_flag:\$export_symbols"
331    else
332      if test "$host_cpu" = ia64; then
333        if test $with_gnu_ld = no; then
334          hardcode_libdir_flag_spec='${wl}-R $libdir:/usr/lib:/lib'
335          allow_undefined_flag="-z nodefs"
336          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"
337        fi
338      else
339        allow_undefined_flag=' ${wl}-berok'
340        # -bexpall does not export symbols beginning with underscore (_)
341        always_export_symbols=yes
342        # Exported symbols can be pulled into shared objects from archives
343        whole_archive_flag_spec=' '
344        build_libtool_need_lc=yes
345        hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:/usr/lib:/lib'
346        # This is similar to how AIX traditionally builds it's shared libraries.
347        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'
348      fi
349    fi
350    ;;
351
352  amigaos*)
353    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 $output_objdir && a2ixlibrary -32)'
354    hardcode_libdir_flag_spec='-L$libdir'
355    hardcode_minus_L=yes
356    # see comment about different semantics on the GNU ld section
357    ld_shlibs=no
358    ;;
359
360  cygwin* | mingw*)
361    # When not using gcc, we currently assume that we are using
362    # Microsoft Visual C++.
363    # hardcode_libdir_flag_spec is actually meaningless, as there is
364    # no search path for DLLs.
365    hardcode_libdir_flag_spec=' '
366    allow_undefined_flag=unsupported
367    # Tell ltmain to make .lib files, not .a files.
368    libext=lib
369    # FIXME: Setting linknames here is a bad hack.
370    archive_cmds='$CC -o $lib $libobjs $compiler_flags `echo "$deplibs" | sed -e '\''s/ -lc$//'\''` -link -dll~linknames='
371    # The linker will automatically build a .lib file if we build a DLL.
372    old_archive_from_new_cmds='true'
373    # FIXME: Should let the user specify the lib program.
374    old_archive_cmds='lib /OUT:$oldlib$oldobjs$old_deplibs'
375    fix_srcfile_path='`cygpath -w "$srcfile"`'
376    ;;
377
378  darwin* | rhapsody*)
379    case "$host_os" in
380    rhapsody* | darwin1.[[012]])
381	allow_undefined_flag='-undefined suppress'
382	;;
383    *) # Darwin 1.3 on
384    if test -z ${MACOSX_DEPLOYMENT_TARGET} ; then
385       allow_undefined_flag='-flat_namespace -undefined suppress'
386    else
387	case ${MACOSX_DEPLOYMENT_TARGET} in
388	    10.[[012]])
389		allow_undefined_flag='-flat_namespace -undefined suppress'
390		;;
391	    10.*)
392		allow_undefined_flag='-undefined dynamic_lookup'
393		;;
394	esac
395    fi
396    ;;
397    esac
398    # Disable shared library build on OS-X older than 10.3.
399    case $host_os in
400	darwin[1-6]*)
401	    can_build_shared=no
402	    ;;
403	darwin7*)
404	    can_build_shared=yes
405	    ;;
406    esac
407    output_verbose_link_cmd='echo'
408    archive_cmds='$CC -dynamiclib $allow_undefined_flag -o $lib $libobjs $deplibs$compiler_flags -install_name $rpath/$soname $verstring'
409    module_cmds='$CC $allow_undefined_flag -o $lib -bundle $libobjs $deplibs$compiler_flags'
410    # Don't fix this by using the ld -exported_symbols_list flag,
411    # it doesn't exist in older darwin ld's
412    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}'
413    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}'
414    hardcode_direct=no
415    hardcode_automatic=yes
416    hardcode_shlibpath_var=unsupported
417    whole_archive_flag_spec='-all_load $convenience'
418    link_all_deplibs=yes
419    ;;
420
421  freebsd1*)
422  ld_shlibs=no
423  ;;
424
425  # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor
426  # support.  Future versions do this automatically, but an explicit c++rt0.o
427  # does not break anything, and helps significantly (at the cost of a little
428  # extra space).
429  freebsd2.2*)
430    archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags /usr/lib/c++rt0.o'
431    hardcode_libdir_flag_spec='-R$libdir'
432    hardcode_direct=yes
433    hardcode_shlibpath_var=no
434    ;;
435
436  # Unfortunately, older versions of FreeBSD 2 do not have this feature.
437  freebsd2*)
438    archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
439    hardcode_direct=yes
440    hardcode_minus_L=yes
441    hardcode_shlibpath_var=no
442    ;;
443
444  # FreeBSD 3 and greater uses gcc -shared to do shared libraries.
445  freebsd* | kfreebsd*-gnu)
446    archive_cmds='$CC -shared -o $lib $libobjs $deplibs $compiler_flags'
447    hardcode_libdir_flag_spec='-R$libdir'
448    hardcode_direct=yes
449    hardcode_shlibpath_var=no
450    ;;
451
452  hpux9* | hpux10* | hpux11*)
453    case "$host_cpu" in
454    ia64*)
455      hardcode_direct=no
456      hardcode_shlibpath_var=no
457      archive_cmds='$LD -b +h $soname -o $lib $libobjs $deplibs $linker_flags'
458      hardcode_libdir_flag_spec='-L$libdir' ;;
459    *)
460      if test $with_gcc = yes; then
461        case "$host_os" in
462        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 $lib' ;;
463        *) archive_cmds='$CC -shared -fPIC ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags' ;;
464        esac
465      else
466        case $host_os in
467        hpux9*) archive_cmds='$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 $lib' ;;
468        *) archive_cmds='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags' ;;
469        esac
470      fi
471      hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
472      hardcode_libdir_separator=:
473      hardcode_minus_L=yes # Not in the search PATH, but as the default
474			   # location of the library.
475      ;;
476    esac
477    export_dynamic_flag_spec='${wl}-E'
478    hardcode_direct=yes
479    ;;
480
481  irix5* | irix6*)
482    if test "$with_gcc" = yes; then
483      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 $lib'
484    else
485      archive_cmds='$LD -shared $libobjs $deplibs $linker_flags -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${objdir}/so_locations -o $lib'
486    fi
487    hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
488    hardcode_libdir_separator=:
489    link_all_deplibs=yes
490    ;;
491
492  netbsd* | knetbsd*-gnu)
493    if echo __ELF__ | $CC -E - | grep __ELF__ >/dev/null; then
494      archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'  # a.out
495    else
496      archive_cmds='$LD -shared -o $lib $libobjs $deplibs $linker_flags'      # ELF
497    fi
498    hardcode_libdir_flag_spec='-R$libdir'
499    hardcode_direct=yes
500    hardcode_shlibpath_var=no
501    ;;
502
503  newsos6)
504    archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linkopts'
505    hardcode_direct=yes
506    hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
507    hardcode_libdir_separator=:
508    hardcode_shlibpath_var=no
509    ;;
510
511  openbsd*)
512    archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
513    hardcode_libdir_flag_spec='-R$libdir'
514    hardcode_direct=yes
515    hardcode_shlibpath_var=no
516    ;;
517
518  os2*)
519    hardcode_libdir_flag_spec='-L$libdir'
520    hardcode_minus_L=yes
521    allow_undefined_flag=unsupported
522    archive_cmds='$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'
523    old_archive_from_new_cmds='emximp -o $output_objdir/$libname.a $output_objdir/$libname.def'
524    ;;
525
526  osf3*)
527    if test "$with_gcc" = yes; then
528      allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
529      archive_cmds='$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 $lib'
530    else
531      allow_undefined_flag=' -expect_unresolved \*'
532      archive_cmds='$LD -shared${allow_undefined_flag} $libobjs $deplibs $linker_flags -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${objdir}/so_locations -o $lib'
533    fi
534    hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
535    hardcode_libdir_separator=:
536    ;;
537
538  osf4* | osf5*)	# as osf3* with the addition of -msym flag
539    if test "$with_gcc" = yes; then
540      allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
541      archive_cmds='$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 $lib'
542      hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
543    else
544      allow_undefined_flag=' -expect_unresolved \*'
545      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'
546      archive_expsym_cmds='for i in `cat $export_symbols`; do printf "-exported_symbol " >> $lib.exp; echo "\$i" >> $lib.exp; done; echo "-hidden">> $lib.exp~
547      $LD -shared${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'
548
549      # cc supports -rpath directly
550      hardcode_libdir_flag_spec='-rpath $libdir'
551    fi
552    hardcode_libdir_separator=:
553    ;;
554
555  sco3.2v5*)
556    archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
557    hardcode_shlibpath_var=no
558    runpath_var=LD_RUN_PATH
559    hardcode_runpath_var=yes
560    ;;
561
562  solaris*)
563    no_undefined_flag=' -z defs'
564    if test "$with_gcc" = yes; then
565      archive_cmds='$CC -shared ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
566      archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
567                  $CC -shared ${wl}-M ${wl}$lib.exp ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags~$rm $lib.exp'
568    else
569      archive_cmds='$LD -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $linker_flags'
570      archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
571		  $LD -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$rm $lib.exp'
572    fi
573    hardcode_libdir_flag_spec='-R$libdir'
574    hardcode_shlibpath_var=no
575    case $host_os in
576    solaris2.[0-5] | solaris2.[0-5].*) ;;
577    *) # Supported since Solaris 2.6 (maybe 2.5.1?)
578      whole_archive_flag_spec='-z allextract$convenience -z defaultextract' ;;
579    esac
580    link_all_deplibs=yes
581    ;;
582
583  sunos4*)
584    archive_cmds='$LD -assert pure-text -Bstatic -o $lib $libobjs $deplibs $linker_flags'
585    hardcode_libdir_flag_spec='-L$libdir'
586    hardcode_direct=yes
587    hardcode_minus_L=yes
588    hardcode_shlibpath_var=no
589    ;;
590
591  sysv4)
592    archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
593    runpath_var='LD_RUN_PATH'
594    hardcode_shlibpath_var=no
595    hardcode_direct=no #Motorola manual says yes, but my tests say they lie
596    ;;
597
598  sysv4.3*)
599    archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
600    hardcode_shlibpath_var=no
601    export_dynamic_flag_spec='-Bexport'
602    ;;
603
604  sysv5*)
605    no_undefined_flag=' -z text'
606    # $CC -shared without GNU ld will not create a library from C++
607    # object files and a static libstdc++, better avoid it by now
608    archive_cmds='$LD -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $linker_flags'
609    archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
610		$LD -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$rm $lib.exp'
611    hardcode_libdir_flag_spec=
612    hardcode_shlibpath_var=no
613    runpath_var='LD_RUN_PATH'
614    ;;
615
616  uts4*)
617    archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
618    hardcode_libdir_flag_spec='-L$libdir'
619    hardcode_shlibpath_var=no
620    ;;
621
622  dgux*)
623    archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
624    hardcode_libdir_flag_spec='-L$libdir'
625    hardcode_shlibpath_var=no
626    ;;
627
628  sysv4*MP*)
629    if test -d /usr/nec; then
630      archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
631      hardcode_shlibpath_var=no
632      runpath_var=LD_RUN_PATH
633      hardcode_runpath_var=yes
634      ld_shlibs=yes
635    fi
636    ;;
637
638  sysv4.2uw2*)
639    archive_cmds='$LD -G -o $lib $libobjs $deplibs $linker_flags'
640    hardcode_direct=yes
641    hardcode_minus_L=no
642    hardcode_shlibpath_var=no
643    hardcode_runpath_var=yes
644    runpath_var=LD_RUN_PATH
645    ;;
646
647  sysv5uw7* | unixware7*)
648    no_undefined_flag='${wl}-z ${wl}text'
649    if test "$GCC" = yes; then
650      archive_cmds='$CC -shared ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
651    else
652      archive_cmds='$CC -G ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
653    fi
654    runpath_var='LD_RUN_PATH'
655    hardcode_shlibpath_var=no
656    ;;
657
658  *)
659    ld_shlibs=no
660    ;;
661  esac
662fi
663
664## Compiler Characteristics: PIC flags, static flags, etc
665if test "X${ac_cv_prog_cc_pic+set}" = Xset; then
666  :
667else
668  ac_cv_prog_cc_pic=
669  ac_cv_prog_cc_shlib=
670  ac_cv_prog_cc_wl=
671  ac_cv_prog_cc_static=
672  ac_cv_prog_cc_no_builtin=
673  ac_cv_prog_cc_can_build_shared=$can_build_shared
674
675  if test "$with_gcc" = yes; then
676    ac_cv_prog_cc_wl='-Wl,'
677    ac_cv_prog_cc_static='-static'
678
679    case $host_os in
680    aix*)
681      # All AIX code is PIC.
682      if test "$host_cpu" = ia64; then
683        # AIX 5 now supports IA64 processor
684        lt_cv_prog_cc_static='-Bstatic'
685      else
686        lt_cv_prog_cc_static='-bnso -bI:/lib/syscalls.exp'
687      fi
688      ;;
689    amigaos*)
690      # FIXME: we need at least 68020 code to build shared libraries, but
691      # adding the `-m68020' flag to GCC prevents building anything better,
692      # like `-m68040'.
693      ac_cv_prog_cc_pic='-m68020 -resident32 -malways-restore-a4'
694      ;;
695    beos* | irix5* | irix6* | osf3* | osf4* | osf5*)
696      # PIC is the default for these OSes.
697      ;;
698    cygwin* | mingw* | os2*)
699      # This hack is so that the source file can tell whether it is being
700      # built for inclusion in a dll (and should export symbols for example).
701      ac_cv_prog_cc_pic='-DDLL_EXPORT'
702      ;;
703    darwin* | rhapsody*)
704      # PIC is the default on this platform
705      # Common symbols not allowed in MH_DYLIB files
706      ac_cv_prog_cc_pic='-fno-common'
707      ;;
708    *djgpp*)
709      # DJGPP does not support shared libraries at all
710      ac_cv_prog_cc_pic=
711      ;;
712    sysv4*MP*)
713      if test -d /usr/nec; then
714	 ac_cv_prog_cc_pic=-Kconform_pic
715      fi
716      ;;
717    *)
718      ac_cv_prog_cc_pic='-fPIC'
719      ;;
720    esac
721  else
722    # PORTME Check for PIC flags for the system compiler.
723    case $host_os in
724    aix*)
725     # All AIX code is PIC.
726      ac_cv_prog_cc_static="$ac_cv_prog_cc_static ${ac_cv_prog_cc_wl}-lC"
727      ;;
728
729    hpux9* | hpux10* | hpux11*)
730      # Is there a better ac_cv_prog_cc_static that works with the bundled CC?
731      ac_cv_prog_cc_wl='-Wl,'
732      ac_cv_prog_cc_static="${ac_cv_prog_cc_wl}-a ${ac_cv_prog_cc_wl}archive"
733      ac_cv_prog_cc_pic='+Z'
734      ;;
735
736    irix5* | irix6*)
737      ac_cv_prog_cc_wl='-Wl,'
738      ac_cv_prog_cc_static='-non_shared'
739      # PIC (with -KPIC) is the default.
740      ;;
741
742    cygwin* | mingw* | os2*)
743      # This hack is so that the source file can tell whether it is being
744      # built for inclusion in a dll (and should export symbols for example).
745      ac_cv_prog_cc_pic='-DDLL_EXPORT'
746      ;;
747
748    newsos6)
749      ac_cv_prog_cc_pic='-KPIC'
750      ac_cv_prog_cc_static='-Bstatic'
751      ;;
752
753    osf3* | osf4* | osf5*)
754      # All OSF/1 code is PIC.
755      ac_cv_prog_cc_wl='-Wl,'
756      ac_cv_prog_cc_static='-non_shared'
757      ;;
758
759    sco3.2v5*)
760      ac_cv_prog_cc_pic='-Kpic'
761      ac_cv_prog_cc_static='-dn'
762      ac_cv_prog_cc_shlib='-belf'
763      ;;
764
765    solaris*)
766      ac_cv_prog_cc_pic='-KPIC'
767      ac_cv_prog_cc_static='-Bstatic'
768      ac_cv_prog_cc_wl='-Wl,'
769      ;;
770
771    sunos4*)
772      ac_cv_prog_cc_pic='-PIC'
773      ac_cv_prog_cc_static='-Bstatic'
774      ac_cv_prog_cc_wl='-Qoption ld '
775      ;;
776
777    sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
778      ac_cv_prog_cc_pic='-KPIC'
779      ac_cv_prog_cc_static='-Bstatic'
780      ac_cv_prog_cc_wl='-Wl,'
781      ;;
782
783    uts4*)
784      ac_cv_prog_cc_pic='-pic'
785      ac_cv_prog_cc_static='-Bstatic'
786      ;;
787
788    sysv4*MP*)
789      if test -d /usr/nec ;then
790	ac_cv_prog_cc_pic='-Kconform_pic'
791	ac_cv_prog_cc_static='-Bstatic'
792      fi
793      ;;
794
795    *)
796      ac_cv_prog_cc_can_build_shared=no
797      ;;
798    esac
799  fi
800  case "$host_os" in
801      # Platforms which do not suport PIC and -DPIC is meaningless
802      # on them:
803      *djgpp*)
804        ac_cv_prog_cc_pic=
805        ;;
806      *)
807        ac_cv_prog_cc_pic="$ac_cv_prog_cc_pic -DPIC"
808        ;;
809  esac
810fi
811
812need_lc=yes
813if test "$enable_shared" = yes && test "$with_gcc" = yes; then
814  case $archive_cmds in
815  *'~'*)
816    # FIXME: we may have to deal with multi-command sequences.
817    ;;
818  '$CC '*)
819    # Test whether the compiler implicitly links with -lc since on some
820    # systems, -lgcc has to come before -lc. If gcc already passes -lc
821    # to ld, don't add -lc before -lgcc.
822    echo $ac_n "checking whether -lc should be explicitly linked in... $ac_c" 1>&6
823    if eval "test \"`echo '$''{'ac_cv_archive_cmds_needs_lc'+set}'`\" = set"; then
824      echo $ac_n "(cached) $ac_c" 1>&6
825      need_lc=$ac_cv_archive_cmds_needs_lc
826    else
827      $rm conftest*
828      echo "static int dummy;" > conftest.$ac_ext
829      if { (eval echo ltcf-c.sh:need_lc: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>conftest.err; }; then
830	# Append any warnings to the config.log.
831	cat conftest.err 1>&5
832	soname=conftest
833	lib=conftest
834	libobjs=conftest.$objext
835	deplibs=
836	wl=$ac_cv_prog_cc_wl
837	compiler_flags=-v
838	linker_flags=-v
839	verstring=
840	output_objdir=.
841	libname=conftest
842	save_allow_undefined_flag=$allow_undefined_flag
843	allow_undefined_flag=
844	if { (eval echo ltcf-c.sh:need_lc: \"$archive_cmds\") 1>&5; (eval $archive_cmds) 2>&1 | grep " -lc " 1>&5 ; }; then
845	  need_lc=no
846	fi
847	allow_undefined_flag=$save_allow_undefined_flag
848      else
849	cat conftest.err 1>&5
850      fi
851    fi
852    $rm conftest*
853    echo "$ac_t$need_lc" 1>&6
854    ;;
855  esac
856fi
857ac_cv_archive_cmds_needs_lc=$need_lc
858