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 $compiler_flags'
176    ;;
177
178  darwin* | rhapsody*)
179    allow_undefined_flag='-undefined suppress'
180    archive_cmds='$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*)
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  *)
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
255else
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      if test $with_gnu_ld = no; then
317        exp_sym_flag='-Bexport'
318        no_entry_flag=""
319      fi
320    else
321      # Test if we are trying to use run time linking, or normal AIX style linking.
322      # If -brtl is somewhere in LDFLAGS, we need to do run time linking.
323      aix_use_runtimelinking=no
324      for ld_flag in $LDFLAGS; do
325        if (test $ld_flag = "-brtl" || test $ld_flag = "-Wl,-brtl" ); then
326          aix_use_runtimelinking=yes
327          break
328        fi
329      done
330      exp_sym_flag='-bexport'
331      no_entry_flag='-bnoentry'
332    fi
333    # -bexpall does not export symbols beginning with underscore (_)
334    always_export_symbols=yes
335    if test "$aix_use_runtimelinking" = yes; then
336      # Warning - without using the other run time loading flags (-brtl), -berok will
337      #           link without error, but may produce a broken library.
338      allow_undefined_flag=' ${wl}-berok'
339      hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:/usr/lib:/lib'
340      archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${allow_undefined_flag} '"\${wl}$no_entry_flag \${wl}$exp_sym_flag:\$export_symbols"
341    else
342      if test "$host_cpu" = ia64; then
343        if test $with_gnu_ld = no; then
344          hardcode_libdir_flag_spec='${wl}-R $libdir:/usr/lib:/lib'
345          allow_undefined_flag="-z nodefs"
346          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"
347        fi
348      else
349        allow_undefined_flag=' ${wl}-berok'
350        # -bexpall does not export symbols beginning with underscore (_)
351        always_export_symbols=yes
352        # Exported symbols can be pulled into shared objects from archives
353        whole_archive_flag_spec=' '
354        build_libtool_need_lc=yes
355        hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:/usr/lib:/lib'
356        # This is similar to how AIX traditionally builds it's shared libraries.
357        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'
358      fi
359    fi
360    ;;
361
362  amigaos*)
363    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 $output_objdir && a2ixlibrary -32)'
364    hardcode_libdir_flag_spec='-L$libdir'
365    hardcode_minus_L=yes
366    # see comment about different semantics on the GNU ld section
367    ld_shlibs=no
368    ;;
369
370  cygwin* | mingw*)
371    # When not using gcc, we currently assume that we are using
372    # Microsoft Visual C++.
373    # hardcode_libdir_flag_spec is actually meaningless, as there is
374    # no search path for DLLs.
375    hardcode_libdir_flag_spec=' '
376    allow_undefined_flag=unsupported
377    # Tell ltmain to make .lib files, not .a files.
378    libext=lib
379    # FIXME: Setting linknames here is a bad hack.
380    archive_cmds='$CC -o $lib $libobjs $compiler_flags `echo "$deplibs" | sed -e '\''s/ -lc$//'\''` -link -dll~linknames='
381    # The linker will automatically build a .lib file if we build a DLL.
382    old_archive_from_new_cmds='true'
383    # FIXME: Should let the user specify the lib program.
384    old_archive_cmds='lib /OUT:$oldlib$oldobjs$old_deplibs'
385    fix_srcfile_path='`cygpath -w "$srcfile"`'
386    ;;
387
388  freebsd1*)
389    ld_shlibs=no
390    ;;
391
392  # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor
393  # support.  Future versions do this automatically, but an explicit c++rt0.o
394  # does not break anything, and helps significantly (at the cost of a little
395  # extra space).
396  freebsd2.2*)
397    archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags /usr/lib/c++rt0.o'
398    hardcode_libdir_flag_spec='-R$libdir'
399    hardcode_direct=yes
400    hardcode_shlibpath_var=no
401    ;;
402
403  # Unfortunately, older versions of FreeBSD 2 do not have this feature.
404  freebsd2*)
405    archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
406    hardcode_direct=yes
407    hardcode_minus_L=yes
408    hardcode_shlibpath_var=no
409    ;;
410
411  # FreeBSD 3 and greater uses gcc -shared to do shared libraries.
412  freebsd*)
413    archive_cmds='$CC -shared -o $lib $libobjs $deplibs $compiler_flags'
414    hardcode_libdir_flag_spec='-R$libdir'
415    hardcode_direct=yes
416    hardcode_shlibpath_var=no
417    ;;
418
419  hpux9* | hpux10* | hpux11*)
420    case "$host_cpu" in
421    ia64*)
422      hardcode_direct=no
423      hardcode_shlibpath_var=no
424      archive_cmds='$LD -b +h $soname -o $lib $libobjs $deplibs $linker_flags'
425      hardcode_libdir_flag_spec='-L$libdir' ;;
426    *)
427      if test $with_gcc = yes; then
428        case "$host_os" in
429        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 $lib' ;;
430        *) archive_cmds='$CC -shared -fPIC ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags' ;;
431        esac
432      else
433        case $host_os in
434        hpux9*) archive_cmds='$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 $lib' ;;
435        *) archive_cmds='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags' ;;
436        esac
437      fi
438      hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
439      hardcode_libdir_separator=:
440      hardcode_minus_L=yes # Not in the search PATH, but as the default
441			   # location of the library.
442      ;;
443    esac
444    export_dynamic_flag_spec='${wl}-E'
445    hardcode_direct=yes
446    ;;
447
448  irix5* | irix6*)
449    if test "$with_gcc" = yes; then
450      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 $lib'
451    else
452      archive_cmds='$LD -shared $libobjs $deplibs $linker_flags -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${objdir}/so_locations -o $lib'
453    fi
454    hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
455    hardcode_libdir_separator=:
456    link_all_deplibs=yes
457    ;;
458
459  netbsd*)
460    if echo __ELF__ | $CC -E - | grep __ELF__ >/dev/null; then
461      archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'  # a.out
462    else
463      archive_cmds='$LD -shared -o $lib $libobjs $deplibs $linker_flags'      # ELF
464    fi
465    hardcode_libdir_flag_spec='-R$libdir'
466    hardcode_direct=yes
467    hardcode_shlibpath_var=no
468    ;;
469
470  newsos6)
471    archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linkopts'
472    hardcode_direct=yes
473    hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
474    hardcode_libdir_separator=:
475    hardcode_shlibpath_var=no
476    ;;
477
478  openbsd*)
479    archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
480    hardcode_libdir_flag_spec='-R$libdir'
481    hardcode_direct=yes
482    hardcode_shlibpath_var=no
483    ;;
484
485  os2*)
486    hardcode_libdir_flag_spec='-L$libdir'
487    hardcode_minus_L=yes
488    allow_undefined_flag=unsupported
489    archive_cmds='$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'
490    old_archive_from_new_cmds='emximp -o $output_objdir/$libname.a $output_objdir/$libname.def'
491    ;;
492
493  osf3*)
494    if test "$with_gcc" = yes; then
495      allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
496      archive_cmds='$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 $lib'
497    else
498      allow_undefined_flag=' -expect_unresolved \*'
499      archive_cmds='$LD -shared${allow_undefined_flag} $libobjs $deplibs $linker_flags -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${objdir}/so_locations -o $lib'
500    fi
501    hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
502    hardcode_libdir_separator=:
503    ;;
504
505  osf4* | osf5*)	# as osf3* with the addition of -msym flag
506    if test "$with_gcc" = yes; then
507      allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
508      archive_cmds='$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 $lib'
509      hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
510    else
511      allow_undefined_flag=' -expect_unresolved \*'
512      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'
513      archive_expsym_cmds='for i in `cat $export_symbols`; do printf "-exported_symbol " >> $lib.exp; echo "\$i" >> $lib.exp; done; echo "-hidden">> $lib.exp~
514      $LD -shared${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'
515
516      # cc supports -rpath directly
517      hardcode_libdir_flag_spec='-rpath $libdir'
518    fi
519    hardcode_libdir_separator=:
520    ;;
521
522  sco3.2v5*)
523    archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
524    hardcode_shlibpath_var=no
525    runpath_var=LD_RUN_PATH
526    hardcode_runpath_var=yes
527    ;;
528
529  solaris*)
530    no_undefined_flag=' -z defs'
531    if test "$with_gcc" = yes; then
532      archive_cmds='$CC -shared ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
533      archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
534                  $CC -shared ${wl}-M ${wl}$lib.exp ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags~$rm $lib.exp'
535    else
536      archive_cmds='$LD -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $linker_flags'
537      archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
538		  $LD -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$rm $lib.exp'
539    fi
540    hardcode_libdir_flag_spec='-R$libdir'
541    hardcode_shlibpath_var=no
542    case $host_os in
543    solaris2.[0-5] | solaris2.[0-5].*) ;;
544    *) # Supported since Solaris 2.6 (maybe 2.5.1?)
545      whole_archive_flag_spec='-z allextract$convenience -z defaultextract' ;;
546    esac
547    link_all_deplibs=yes
548    ;;
549
550  sunos4*)
551    archive_cmds='$LD -assert pure-text -Bstatic -o $lib $libobjs $deplibs $linker_flags'
552    hardcode_libdir_flag_spec='-L$libdir'
553    hardcode_direct=yes
554    hardcode_minus_L=yes
555    hardcode_shlibpath_var=no
556    ;;
557
558  sysv4)
559    archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
560    runpath_var='LD_RUN_PATH'
561    hardcode_shlibpath_var=no
562    hardcode_direct=no #Motorola manual says yes, but my tests say they lie
563    ;;
564
565  sysv4.3*)
566    archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
567    hardcode_shlibpath_var=no
568    export_dynamic_flag_spec='-Bexport'
569    ;;
570
571  sysv5*)
572    no_undefined_flag=' -z text'
573    # $CC -shared without GNU ld will not create a library from C++
574    # object files and a static libstdc++, better avoid it by now
575    archive_cmds='$LD -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $linker_flags'
576    archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
577		$LD -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$rm $lib.exp'
578    hardcode_libdir_flag_spec=
579    hardcode_shlibpath_var=no
580    runpath_var='LD_RUN_PATH'
581    ;;
582
583  uts4*)
584    archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
585    hardcode_libdir_flag_spec='-L$libdir'
586    hardcode_shlibpath_var=no
587    ;;
588
589  dgux*)
590    archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
591    hardcode_libdir_flag_spec='-L$libdir'
592    hardcode_shlibpath_var=no
593    ;;
594
595  sysv4*MP*)
596    if test -d /usr/nec; then
597      archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
598      hardcode_shlibpath_var=no
599      runpath_var=LD_RUN_PATH
600      hardcode_runpath_var=yes
601      ld_shlibs=yes
602    fi
603    ;;
604
605  sysv4.2uw2*)
606    archive_cmds='$LD -G -o $lib $libobjs $deplibs $linker_flags'
607    hardcode_direct=yes
608    hardcode_minus_L=no
609    hardcode_shlibpath_var=no
610    hardcode_runpath_var=yes
611    runpath_var=LD_RUN_PATH
612    ;;
613
614  sysv5uw7* | unixware7*)
615    no_undefined_flag='${wl}-z ${wl}text'
616    if test "$GCC" = yes; then
617      archive_cmds='$CC -shared ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
618    else
619      archive_cmds='$CC -G ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags'
620    fi
621    runpath_var='LD_RUN_PATH'
622    hardcode_shlibpath_var=no
623    ;;
624
625  *)
626    ld_shlibs=no
627    ;;
628  esac
629fi
630
631## Compiler Characteristics: PIC flags, static flags, etc
632if test "X${ac_cv_prog_cc_pic+set}" = Xset; then
633  :
634else
635  ac_cv_prog_cc_pic=
636  ac_cv_prog_cc_shlib=
637  ac_cv_prog_cc_wl=
638  ac_cv_prog_cc_static=
639  ac_cv_prog_cc_no_builtin=
640  ac_cv_prog_cc_can_build_shared=$can_build_shared
641
642  if test "$with_gcc" = yes; then
643    ac_cv_prog_cc_wl='-Wl,'
644    ac_cv_prog_cc_static='-static'
645
646    case $host_os in
647    aix*)
648      # All AIX code is PIC.
649      if test "$host_cpu" = ia64; then
650        # AIX 5 now supports IA64 processor
651        lt_cv_prog_cc_static='-Bstatic'
652      else
653        lt_cv_prog_cc_static='-bnso -bI:/lib/syscalls.exp'
654      fi
655      ;;
656    amigaos*)
657      # FIXME: we need at least 68020 code to build shared libraries, but
658      # adding the `-m68020' flag to GCC prevents building anything better,
659      # like `-m68040'.
660      ac_cv_prog_cc_pic='-m68020 -resident32 -malways-restore-a4'
661      ;;
662    beos* | irix5* | irix6* | osf3* | osf4* | osf5*)
663      # PIC is the default for these OSes.
664      ;;
665    cygwin* | mingw* | os2*)
666      # This hack is so that the source file can tell whether it is being
667      # built for inclusion in a dll (and should export symbols for example).
668      ac_cv_prog_cc_pic='-DDLL_EXPORT'
669      ;;
670    darwin* | rhapsody*)
671      # PIC is the default on this platform
672      # Common symbols not allowed in MH_DYLIB files
673      lt_cv_prog_cc_pic='-fno-common'
674      ;;
675    *djgpp*)
676      # DJGPP does not support shared libraries at all
677      ac_cv_prog_cc_pic=
678      ;;
679    sysv4*MP*)
680      if test -d /usr/nec; then
681	 ac_cv_prog_cc_pic=-Kconform_pic
682      fi
683      ;;
684    *)
685      ac_cv_prog_cc_pic='-fPIC'
686      ;;
687    esac
688  else
689    # PORTME Check for PIC flags for the system compiler.
690    case $host_os in
691    aix*)
692     # All AIX code is PIC.
693      ac_cv_prog_cc_static="$ac_cv_prog_cc_static ${ac_cv_prog_cc_wl}-lC"
694      ;;
695
696    hpux9* | hpux10* | hpux11*)
697      # Is there a better ac_cv_prog_cc_static that works with the bundled CC?
698      ac_cv_prog_cc_wl='-Wl,'
699      ac_cv_prog_cc_static="${ac_cv_prog_cc_wl}-a ${ac_cv_prog_cc_wl}archive"
700      ac_cv_prog_cc_pic='+Z'
701      ;;
702
703    irix5* | irix6*)
704      ac_cv_prog_cc_wl='-Wl,'
705      ac_cv_prog_cc_static='-non_shared'
706      # PIC (with -KPIC) is the default.
707      ;;
708
709    cygwin* | mingw* | os2*)
710      # This hack is so that the source file can tell whether it is being
711      # built for inclusion in a dll (and should export symbols for example).
712      ac_cv_prog_cc_pic='-DDLL_EXPORT'
713      ;;
714
715    newsos6)
716      ac_cv_prog_cc_pic='-KPIC'
717      ac_cv_prog_cc_static='-Bstatic'
718      ;;
719
720    osf3* | osf4* | osf5*)
721      # All OSF/1 code is PIC.
722      ac_cv_prog_cc_wl='-Wl,'
723      ac_cv_prog_cc_static='-non_shared'
724      ;;
725
726    sco3.2v5*)
727      ac_cv_prog_cc_pic='-Kpic'
728      ac_cv_prog_cc_static='-dn'
729      ac_cv_prog_cc_shlib='-belf'
730      ;;
731
732    solaris*)
733      ac_cv_prog_cc_pic='-KPIC'
734      ac_cv_prog_cc_static='-Bstatic'
735      ac_cv_prog_cc_wl='-Wl,'
736      ;;
737
738    sunos4*)
739      ac_cv_prog_cc_pic='-PIC'
740      ac_cv_prog_cc_static='-Bstatic'
741      ac_cv_prog_cc_wl='-Qoption ld '
742      ;;
743
744    sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
745      ac_cv_prog_cc_pic='-KPIC'
746      ac_cv_prog_cc_static='-Bstatic'
747      ac_cv_prog_cc_wl='-Wl,'
748      ;;
749
750    uts4*)
751      ac_cv_prog_cc_pic='-pic'
752      ac_cv_prog_cc_static='-Bstatic'
753      ;;
754
755    sysv4*MP*)
756      if test -d /usr/nec ;then
757	ac_cv_prog_cc_pic='-Kconform_pic'
758	ac_cv_prog_cc_static='-Bstatic'
759      fi
760      ;;
761
762    *)
763      ac_cv_prog_cc_can_build_shared=no
764      ;;
765    esac
766  fi
767  case "$host_os" in
768      # Platforms which do not suport PIC and -DPIC is meaningless
769      # on them:
770      *djgpp*)
771        ac_cv_prog_cc_pic=
772        ;;
773      *)
774        ac_cv_prog_cc_pic="$ac_cv_prog_cc_pic -DPIC"
775        ;;
776  esac
777fi
778
779need_lc=yes
780if test "$enable_shared" = yes && test "$with_gcc" = yes; then
781  case $archive_cmds in
782  *'~'*)
783    # FIXME: we may have to deal with multi-command sequences.
784    ;;
785  '$CC '*)
786    # Test whether the compiler implicitly links with -lc since on some
787    # systems, -lgcc has to come before -lc. If gcc already passes -lc
788    # to ld, don't add -lc before -lgcc.
789    echo $ac_n "checking whether -lc should be explicitly linked in... $ac_c" 1>&6
790    if eval "test \"`echo '$''{'ac_cv_archive_cmds_needs_lc'+set}'`\" = set"; then
791      echo $ac_n "(cached) $ac_c" 1>&6
792      need_lc=$ac_cv_archive_cmds_needs_lc
793    else
794      $rm conftest*
795      echo "static int dummy;" > conftest.$ac_ext
796      if { (eval echo ltcf-c.sh:need_lc: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>conftest.err; }; then
797	# Append any warnings to the config.log.
798	cat conftest.err 1>&5
799	soname=conftest
800	lib=conftest
801	libobjs=conftest.$objext
802	deplibs=
803	wl=$ac_cv_prog_cc_wl
804	compiler_flags=-v
805	linker_flags=-v
806	verstring=
807	output_objdir=.
808	libname=conftest
809	save_allow_undefined_flag=$allow_undefined_flag
810	allow_undefined_flag=
811	if { (eval echo ltcf-c.sh:need_lc: \"$archive_cmds\") 1>&5; (eval $archive_cmds) 2>&1 | grep " -lc " 1>&5 ; }; then
812	  need_lc=no
813	fi
814	allow_undefined_flag=$save_allow_undefined_flag
815      else
816	cat conftest.err 1>&5
817      fi
818    fi
819    $rm conftest*
820    echo "$ac_t$need_lc" 1>&6
821    ;;
822  esac
823fi
824ac_cv_archive_cmds_needs_lc=$need_lc
825