1#### This script is meant to be sourced by ltconfig.
2
3# ltcf-c.sh - Create a C compiler specific configuration
4#
5# Copyright (C) 1996-2000, 2001 Free Software Foundation, Inc.
6# Originally by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996
7#
8# This file is free software; you can redistribute it and/or modify it
9# under the terms of the GNU General Public License as published by
10# the Free Software Foundation; either version 2 of the License, or
11# (at your option) any later version.
12#
13# This program is distributed in the hope that it will be useful, but
14# WITHOUT ANY WARRANTY; without even the implied warranty of
15# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
16# General Public License for more details.
17#
18# You should have received a copy of the GNU General Public License
19# along with this program; if not, write to the Free Software
20# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
21#
22# As a special exception to the GNU General Public License, if you
23# distribute this file as part of a program that contains a
24# configuration script generated by Autoconf, you may include it under
25# the same distribution terms that you use for the rest of that program.
26
27
28# Source file extension for C test sources.
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 $compiler_flags'
176    ;;
177
178  darwin* | rhapsody*)
179    allow_undefined_flag='-undefined suppress'
180    archive_cmds='$CC `test .$module = .yes && echo -bundle || echo -dynamiclib` $allow_undefined_flag -o $lib $libobjs $deplibs $linkopts -install_name $rpath/$soname `test -n "$verstring" -a x$verstring != x0.0 && echo $verstring`'
181    # We need to add '_' to the symbols in $export_symbols first
182    #archive_expsym_cmds="$archive_cmds"' && strip -s $export_symbols'
183    hardcode_direct=yes
184    hardcode_shlibpath_var=no
185    whole_archive_flag_spec='-all_load $convenience'
186    ;;
187
188  netbsd* | knetbsd*-gnu)
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 -nodefaultlibs $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
194      archive_expsym_cmds='$CC -shared -nodefaultlibs $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
210EOF
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  tpf*)
227    ld_shlibs=yes
228    ;;
229
230  *)
231    if $LD --help 2>&1 | egrep ': supported targets:.* elf' > /dev/null; then
232      archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
233      archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
234    else
235      ld_shlibs=no
236    fi
237    ;;
238  esac
239
240  if test "$ld_shlibs" = yes; then
241    runpath_var=LD_RUN_PATH
242    hardcode_libdir_flag_spec='${wl}--rpath ${wl}$libdir'
243    export_dynamic_flag_spec='${wl}--export-dynamic'
244    case $host_os in
245    cygwin* | mingw*)
246      # dlltool doesn't understand --whole-archive et. al.
247      whole_archive_flag_spec=
248      ;;
249    *)
250      # ancient GNU ld didn't support --whole-archive et. al.
251      if $LD --help 2>&1 | egrep 'no-whole-archive' > /dev/null; then
252	whole_archive_flag_spec="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
253      else
254	whole_archive_flag_spec=
255      fi
256      ;;
257    esac
258  fi
259else
260  # PORTME fill in a description of your system's linker (not GNU ld)
261  case $host_os in
262  aix3*)
263    allow_undefined_flag=unsupported
264    always_export_symbols=yes
265    archive_expsym_cmds='$LD -o $output_objdir/$soname $libobjs $deplibs $linker_flags -bE:$export_symbols -T512 -H512 -bM:SRE~$AR $AR_FLAGS $lib $output_objdir/$soname'
266    # Note: this linker hardcodes the directories in LIBPATH if there
267    # are no directories specified by -L.
268    hardcode_minus_L=yes
269    if test "$with_gcc" = yes && test -z "$link_static_flag"; then
270      # Neither direct hardcoding nor static linking is supported with a
271      # broken collect2.
272      hardcode_direct=unsupported
273    fi
274    ;;
275
276  aix4* | aix5*)
277    hardcode_direct=yes
278    hardcode_libdir_separator=':'
279    link_all_deplibs=yes
280    # When large executables or shared objects are built, AIX ld can
281    # have problems creating the table of contents.  If linking a library
282    # or program results in "error TOC overflow" add -mminimal-toc to
283    # CXXFLAGS/CFLAGS for g++/gcc.  In the cases where that is not
284    # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
285    if test "$with_gcc" = yes; then
286      case $host_os in aix4.[012]|aix4.[012].*)
287      # We only want to do this on AIX 4.2 and lower, the check
288      # below for broken collect2 doesn't work under 4.3+
289        collect2name=`${CC} -print-prog-name=collect2`
290        if test -f "$collect2name" && \
291	   strings "$collect2name" | grep resolve_lib_name >/dev/null
292        then
293	  # We have reworked collect2
294	  hardcode_direct=yes
295        else
296	  # We have old collect2
297	  hardcode_direct=unsupported
298	  # It fails to find uninstalled libraries when the uninstalled
299	  # path is not listed in the libpath.  Setting hardcode_minus_L
300	  # to unsupported forces relinking
301	  hardcode_minus_L=yes
302	  hardcode_libdir_flag_spec='-L$libdir'
303	  hardcode_libdir_separator=
304        fi
305      esac
306      shared_flag='-shared'
307    else
308      # not using gcc
309      if test "$host_cpu" = ia64; then
310        shared_flag='${wl}-G'
311      else
312        shared_flag='${wl}-bM:SRE'
313      fi
314    fi
315
316    if test "$host_cpu" = ia64; then
317      # On IA64, the linker does run time linking by default, so we don't
318      # have to do anything special.
319      aix_use_runtimelinking=no
320      if test $with_gnu_ld = no; then
321        exp_sym_flag='-Bexport'
322        no_entry_flag=""
323      fi
324    else
325      # Test if we are trying to use run time linking, or normal AIX style linking.
326      # If -brtl is somewhere in LDFLAGS, we need to do run time linking.
327      aix_use_runtimelinking=no
328      for ld_flag in $LDFLAGS; do
329        if (test $ld_flag = "-brtl" || test $ld_flag = "-Wl,-brtl" ); then
330          aix_use_runtimelinking=yes
331          break
332        fi
333      done
334      exp_sym_flag='-bexport'
335      no_entry_flag='-bnoentry'
336    fi
337    # -bexpall does not export symbols beginning with underscore (_)
338    always_export_symbols=yes
339    if test "$aix_use_runtimelinking" = yes; then
340      # Warning - without using the other run time loading flags (-brtl), -berok will
341      #           link without error, but may produce a broken library.
342      allow_undefined_flag=' ${wl}-berok'
343      hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:/usr/lib:/lib'
344      archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${allow_undefined_flag} '"\${wl}$no_entry_flag \${wl}$exp_sym_flag:\$export_symbols"
345    else
346      if test "$host_cpu" = ia64; then
347        if test $with_gnu_ld = no; then
348          hardcode_libdir_flag_spec='${wl}-R $libdir:/usr/lib:/lib'
349          allow_undefined_flag="-z nodefs"
350          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"
351        fi
352      else
353        allow_undefined_flag=' ${wl}-berok'
354        # -bexpall does not export symbols beginning with underscore (_)
355        always_export_symbols=yes
356        # Exported symbols can be pulled into shared objects from archives
357        whole_archive_flag_spec=' '
358        build_libtool_need_lc=yes
359        hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:/usr/lib:/lib'
360        # This is similar to how AIX traditionally builds it's shared libraries.
361        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'
362      fi
363    fi
364    ;;
365
366  amigaos*)
367    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 $output_objdir && a2ixlibrary -32)'
368    hardcode_libdir_flag_spec='-L$libdir'
369    hardcode_minus_L=yes
370    # see comment about different semantics on the GNU ld section
371    ld_shlibs=no
372    ;;
373
374  cygwin* | mingw*)
375    # When not using gcc, we currently assume that we are using
376    # Microsoft Visual C++.
377    # hardcode_libdir_flag_spec is actually meaningless, as there is
378    # no search path for DLLs.
379    hardcode_libdir_flag_spec=' '
380    allow_undefined_flag=unsupported
381    # Tell ltmain to make .lib files, not .a files.
382    libext=lib
383    # FIXME: Setting linknames here is a bad hack.
384    archive_cmds='$CC -o $lib $libobjs $compiler_flags `echo "$deplibs" | sed -e '\''s/ -lc$//'\''` -link -dll~linknames='
385    # The linker will automatically build a .lib file if we build a DLL.
386    old_archive_from_new_cmds='true'
387    # FIXME: Should let the user specify the lib program.
388    old_archive_cmds='lib /OUT:$oldlib$oldobjs$old_deplibs'
389    fix_srcfile_path='`cygpath -w "$srcfile"`'
390    ;;
391
392  freebsd1*)
393    ld_shlibs=no
394    ;;
395
396  # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor
397  # support.  Future versions do this automatically, but an explicit c++rt0.o
398  # does not break anything, and helps significantly (at the cost of a little
399  # extra space).
400  freebsd2.2*)
401    archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags /usr/lib/c++rt0.o'
402    hardcode_libdir_flag_spec='-R$libdir'
403    hardcode_direct=yes
404    hardcode_shlibpath_var=no
405    ;;
406
407  # Unfortunately, older versions of FreeBSD 2 do not have this feature.
408  freebsd2*)
409    archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
410    hardcode_direct=yes
411    hardcode_minus_L=yes
412    hardcode_shlibpath_var=no
413    ;;
414
415  # FreeBSD 3 and greater uses gcc -shared to do shared libraries.
416  freebsd* | kfreebsd*-gnu)
417    archive_cmds='$CC -shared -o $lib $libobjs $deplibs $compiler_flags'
418    hardcode_libdir_flag_spec='-R$libdir'
419    hardcode_direct=yes
420    hardcode_shlibpath_var=no
421    ;;
422
423  hpux9* | hpux10* | hpux11*)
424    case "$host_cpu" in
425    ia64*)
426      hardcode_direct=no
427      hardcode_shlibpath_var=no
428      archive_cmds='$LD -b +h $soname -o $lib $libobjs $deplibs $linker_flags'
429      hardcode_libdir_flag_spec='-L$libdir' ;;
430    *)
431      if test $with_gcc = yes; then
432        case "$host_os" in
433        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 $lib' ;;
434        *) archive_cmds='$CC -shared -fPIC ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags' ;;
435        esac
436      else
437        case $host_os in
438        hpux9*) archive_cmds='$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 $lib' ;;
439        *) archive_cmds='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags' ;;
440        esac
441      fi
442      hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
443      hardcode_libdir_separator=:
444      hardcode_minus_L=yes # Not in the search PATH, but as the default
445			   # location of the library.
446      ;;
447    esac
448    export_dynamic_flag_spec='${wl}-E'
449    hardcode_direct=yes
450    ;;
451
452  irix5* | irix6*)
453    if test "$with_gcc" = yes; then
454      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 $lib'
455    else
456      archive_cmds='$LD -shared $libobjs $deplibs $linker_flags -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${objdir}/so_locations -o $lib'
457    fi
458    hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
459    hardcode_libdir_separator=:
460    link_all_deplibs=yes
461    ;;
462
463  netbsd* | knetbsd*-gnu)
464    if echo __ELF__ | $CC -E - | grep __ELF__ >/dev/null; then
465      archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'  # a.out
466    else
467      archive_cmds='$LD -shared -o $lib $libobjs $deplibs $linker_flags'      # ELF
468    fi
469    hardcode_libdir_flag_spec='-R$libdir'
470    hardcode_direct=yes
471    hardcode_shlibpath_var=no
472    ;;
473
474  newsos6)
475    archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linkopts'
476    hardcode_direct=yes
477    hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
478    hardcode_libdir_separator=:
479    hardcode_shlibpath_var=no
480    ;;
481
482  openbsd*)
483    archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
484    hardcode_libdir_flag_spec='-R$libdir'
485    hardcode_direct=yes
486    hardcode_shlibpath_var=no
487    ;;
488
489  os2*)
490    hardcode_libdir_flag_spec='-L$libdir'
491    hardcode_minus_L=yes
492    allow_undefined_flag=unsupported
493    archive_cmds='$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'
494    old_archive_from_new_cmds='emximp -o $output_objdir/$libname.a $output_objdir/$libname.def'
495    ;;
496
497  osf3*)
498    if test "$with_gcc" = yes; then
499      allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
500      archive_cmds='$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 $lib'
501    else
502      allow_undefined_flag=' -expect_unresolved \*'
503      archive_cmds='$LD -shared${allow_undefined_flag} $libobjs $deplibs $linker_flags -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${objdir}/so_locations -o $lib'
504    fi
505    hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
506    hardcode_libdir_separator=:
507    ;;
508
509  osf4* | osf5*)	# as osf3* with the addition of -msym flag
510    if test "$with_gcc" = yes; then
511      allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
512      archive_cmds='$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 $lib'
513      hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
514    else
515      allow_undefined_flag=' -expect_unresolved \*'
516      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'
517      archive_expsym_cmds='for i in `cat $export_symbols`; do printf "-exported_symbol " >> $lib.exp; echo "\$i" >> $lib.exp; done; echo "-hidden">> $lib.exp~
518      $LD -shared${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'
519
520      # cc supports -rpath directly
521      hardcode_libdir_flag_spec='-rpath $libdir'
522    fi
523    hardcode_libdir_separator=:
524    ;;
525
526  sco3.2v5*)
527    archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
528    hardcode_shlibpath_var=no
529    runpath_var=LD_RUN_PATH
530    hardcode_runpath_var=yes
531    ;;
532
533  solaris*)
534    no_undefined_flag=' -z defs'
535    if test "$with_gcc" = yes; then
536      archive_cmds='$CC -shared ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
537      archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
538                  $CC -shared ${wl}-M ${wl}$lib.exp ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags~$rm $lib.exp'
539    else
540      archive_cmds='$LD -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $linker_flags'
541      archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
542		  $LD -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$rm $lib.exp'
543    fi
544    hardcode_libdir_flag_spec='-R$libdir'
545    hardcode_shlibpath_var=no
546    case $host_os in
547    solaris2.[0-5] | solaris2.[0-5].*) ;;
548    *) # Supported since Solaris 2.6 (maybe 2.5.1?)
549      whole_archive_flag_spec='-z allextract$convenience -z defaultextract' ;;
550    esac
551    link_all_deplibs=yes
552    ;;
553
554  sunos4*)
555    archive_cmds='$LD -assert pure-text -Bstatic -o $lib $libobjs $deplibs $linker_flags'
556    hardcode_libdir_flag_spec='-L$libdir'
557    hardcode_direct=yes
558    hardcode_minus_L=yes
559    hardcode_shlibpath_var=no
560    ;;
561
562  sysv4)
563    archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
564    runpath_var='LD_RUN_PATH'
565    hardcode_shlibpath_var=no
566    hardcode_direct=no #Motorola manual says yes, but my tests say they lie
567    ;;
568
569  sysv4.3*)
570    archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
571    hardcode_shlibpath_var=no
572    export_dynamic_flag_spec='-Bexport'
573    ;;
574
575  sysv5*)
576    no_undefined_flag=' -z text'
577    # $CC -shared without GNU ld will not create a library from C++
578    # object files and a static libstdc++, better avoid it by now
579    archive_cmds='$LD -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $linker_flags'
580    archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
581		$LD -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$rm $lib.exp'
582    hardcode_libdir_flag_spec=
583    hardcode_shlibpath_var=no
584    runpath_var='LD_RUN_PATH'
585    ;;
586
587  uts4*)
588    archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
589    hardcode_libdir_flag_spec='-L$libdir'
590    hardcode_shlibpath_var=no
591    ;;
592
593  dgux*)
594    archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
595    hardcode_libdir_flag_spec='-L$libdir'
596    hardcode_shlibpath_var=no
597    ;;
598
599  sysv4*MP*)
600    if test -d /usr/nec; then
601      archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
602      hardcode_shlibpath_var=no
603      runpath_var=LD_RUN_PATH
604      hardcode_runpath_var=yes
605      ld_shlibs=yes
606    fi
607    ;;
608
609  sysv4.2uw2*)
610    archive_cmds='$LD -G -o $lib $libobjs $deplibs $linker_flags'
611    hardcode_direct=yes
612    hardcode_minus_L=no
613    hardcode_shlibpath_var=no
614    hardcode_runpath_var=yes
615    runpath_var=LD_RUN_PATH
616    ;;
617
618  sysv5uw7* | unixware7*)
619    no_undefined_flag='${wl}-z ${wl}text'
620    if test "$GCC" = yes; then
621      archive_cmds='$CC -shared ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
622    else
623      archive_cmds='$CC -G ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
624    fi
625    runpath_var='LD_RUN_PATH'
626    hardcode_shlibpath_var=no
627    ;;
628
629  *)
630    ld_shlibs=no
631    ;;
632  esac
633fi
634
635## Compiler Characteristics: PIC flags, static flags, etc
636if test "X${ac_cv_prog_cc_pic+set}" = Xset; then
637  :
638else
639  ac_cv_prog_cc_pic=
640  ac_cv_prog_cc_shlib=
641  ac_cv_prog_cc_wl=
642  ac_cv_prog_cc_static=
643  ac_cv_prog_cc_no_builtin=
644  ac_cv_prog_cc_can_build_shared=$can_build_shared
645
646  if test "$with_gcc" = yes; then
647    ac_cv_prog_cc_wl='-Wl,'
648    ac_cv_prog_cc_static='-static'
649
650    case $host_os in
651    aix*)
652      # All AIX code is PIC.
653      if test "$host_cpu" = ia64; then
654        # AIX 5 now supports IA64 processor
655        lt_cv_prog_cc_static='-Bstatic'
656      else
657        lt_cv_prog_cc_static='-bnso -bI:/lib/syscalls.exp'
658      fi
659      ;;
660    amigaos*)
661      # FIXME: we need at least 68020 code to build shared libraries, but
662      # adding the `-m68020' flag to GCC prevents building anything better,
663      # like `-m68040'.
664      ac_cv_prog_cc_pic='-m68020 -resident32 -malways-restore-a4'
665      ;;
666    beos* | irix5* | irix6* | osf3* | osf4* | osf5*)
667      # PIC is the default for these OSes.
668      ;;
669    cygwin* | mingw* | os2*)
670      # This hack is so that the source file can tell whether it is being
671      # built for inclusion in a dll (and should export symbols for example).
672      ac_cv_prog_cc_pic='-DDLL_EXPORT'
673      ;;
674    darwin* | rhapsody*)
675      # PIC is the default on this platform
676      # Common symbols not allowed in MH_DYLIB files
677      lt_cv_prog_cc_pic='-fno-common'
678      ;;
679    *djgpp*)
680      # DJGPP does not support shared libraries at all
681      ac_cv_prog_cc_pic=
682      ;;
683    sysv4*MP*)
684      if test -d /usr/nec; then
685	 ac_cv_prog_cc_pic=-Kconform_pic
686      fi
687      ;;
688    *)
689      ac_cv_prog_cc_pic='-fPIC'
690      ;;
691    esac
692  else
693    # PORTME Check for PIC flags for the system compiler.
694    case $host_os in
695    aix*)
696     # All AIX code is PIC.
697      ac_cv_prog_cc_static="$ac_cv_prog_cc_static ${ac_cv_prog_cc_wl}-lC"
698      ;;
699
700    hpux9* | hpux10* | hpux11*)
701      # Is there a better ac_cv_prog_cc_static that works with the bundled CC?
702      ac_cv_prog_cc_wl='-Wl,'
703      ac_cv_prog_cc_static="${ac_cv_prog_cc_wl}-a ${ac_cv_prog_cc_wl}archive"
704      ac_cv_prog_cc_pic='+Z'
705      ;;
706
707    irix5* | irix6*)
708      ac_cv_prog_cc_wl='-Wl,'
709      ac_cv_prog_cc_static='-non_shared'
710      # PIC (with -KPIC) is the default.
711      ;;
712
713    cygwin* | mingw* | os2*)
714      # This hack is so that the source file can tell whether it is being
715      # built for inclusion in a dll (and should export symbols for example).
716      ac_cv_prog_cc_pic='-DDLL_EXPORT'
717      ;;
718
719    newsos6)
720      ac_cv_prog_cc_pic='-KPIC'
721      ac_cv_prog_cc_static='-Bstatic'
722      ;;
723
724    osf3* | osf4* | osf5*)
725      # All OSF/1 code is PIC.
726      ac_cv_prog_cc_wl='-Wl,'
727      ac_cv_prog_cc_static='-non_shared'
728      ;;
729
730    sco3.2v5*)
731      ac_cv_prog_cc_pic='-Kpic'
732      ac_cv_prog_cc_static='-dn'
733      ac_cv_prog_cc_shlib='-belf'
734      ;;
735
736    solaris*)
737      ac_cv_prog_cc_pic='-KPIC'
738      ac_cv_prog_cc_static='-Bstatic'
739      ac_cv_prog_cc_wl='-Wl,'
740      ;;
741
742    sunos4*)
743      ac_cv_prog_cc_pic='-PIC'
744      ac_cv_prog_cc_static='-Bstatic'
745      ac_cv_prog_cc_wl='-Qoption ld '
746      ;;
747
748    sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
749      ac_cv_prog_cc_pic='-KPIC'
750      ac_cv_prog_cc_static='-Bstatic'
751      ac_cv_prog_cc_wl='-Wl,'
752      ;;
753
754    uts4*)
755      ac_cv_prog_cc_pic='-pic'
756      ac_cv_prog_cc_static='-Bstatic'
757      ;;
758
759    sysv4*MP*)
760      if test -d /usr/nec ;then
761	ac_cv_prog_cc_pic='-Kconform_pic'
762	ac_cv_prog_cc_static='-Bstatic'
763      fi
764      ;;
765
766    *)
767      ac_cv_prog_cc_can_build_shared=no
768      ;;
769    esac
770  fi
771  case "$host_os" in
772      # Platforms which do not suport PIC and -DPIC is meaningless
773      # on them:
774      *djgpp*)
775        ac_cv_prog_cc_pic=
776        ;;
777      *)
778        ac_cv_prog_cc_pic="$ac_cv_prog_cc_pic -DPIC"
779        ;;
780  esac
781fi
782
783need_lc=yes
784if test "$enable_shared" = yes && test "$with_gcc" = yes; then
785  case $archive_cmds in
786  *'~'*)
787    # FIXME: we may have to deal with multi-command sequences.
788    ;;
789  '$CC '*)
790    # Test whether the compiler implicitly links with -lc since on some
791    # systems, -lgcc has to come before -lc. If gcc already passes -lc
792    # to ld, don't add -lc before -lgcc.
793    echo $ac_n "checking whether -lc should be explicitly linked in... $ac_c" 1>&6
794    if eval "test \"`echo '$''{'ac_cv_archive_cmds_needs_lc'+set}'`\" = set"; then
795      echo $ac_n "(cached) $ac_c" 1>&6
796      need_lc=$ac_cv_archive_cmds_needs_lc
797    else
798      $rm conftest*
799      echo "static int dummy;" > conftest.$ac_ext
800      if { (eval echo ltcf-c.sh:need_lc: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>conftest.err; }; then
801	# Append any warnings to the config.log.
802	cat conftest.err 1>&5
803	soname=conftest
804	lib=conftest
805	libobjs=conftest.$objext
806	deplibs=
807	wl=$ac_cv_prog_cc_wl
808	compiler_flags=-v
809	linker_flags=-v
810	verstring=
811	output_objdir=.
812	libname=conftest
813	save_allow_undefined_flag=$allow_undefined_flag
814	allow_undefined_flag=
815	if { (eval echo ltcf-c.sh:need_lc: \"$archive_cmds\") 1>&5; (eval $archive_cmds) 2>&1 | grep " -lc " 1>&5 ; }; then
816	  need_lc=no
817	fi
818	allow_undefined_flag=$save_allow_undefined_flag
819      else
820	cat conftest.err 1>&5
821      fi
822    fi
823    $rm conftest*
824    echo "$ac_t$need_lc" 1>&6
825    ;;
826  esac
827fi
828ac_cv_archive_cmds_needs_lc=$need_lc
829