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4f4caf92 AO |
1 | #### This script is meant to be sourced by ltconfig. |
2 | ||
4f4caf92 AO |
3 | # ltcf-c.sh - Create a C compiler specific configuration |
4 | # | |
88a1c0ab | 5 | # Copyright (C) 1996-2000, 2001 Free Software Foundation, Inc. |
4f4caf92 AO |
6 | # Originally by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996 |
7 | # | |
8 | # This file is free software; you can redistribute it and/or modify it | |
9 | # under the terms of the GNU General Public License as published by | |
10 | # the Free Software Foundation; either version 2 of the License, or | |
11 | # (at your option) any later version. | |
12 | # | |
13 | # This program is distributed in the hope that it will be useful, but | |
14 | # WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | # General Public License for more details. | |
17 | # | |
18 | # You should have received a copy of the GNU General Public License | |
19 | # along with this program; if not, write to the Free Software | |
20 | # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
21 | # | |
22 | # As a special exception to the GNU General Public License, if you | |
23 | # distribute this file as part of a program that contains a | |
24 | # configuration script generated by Autoconf, you may include it under | |
25 | # the same distribution terms that you use for the rest of that program. | |
26 | ||
27 | ||
28 | # Source file extension for C test sources. | |
29 | ac_ext=c | |
30 | ||
31 | # Object file extension for compiled C test sources. | |
32 | objext=o | |
33 | ||
34 | # Code to be used in simple compile tests | |
35 | lt_simple_compile_test_code="int some_variable = 0;" | |
36 | ||
37 | # Code to be used in simple link tests | |
38 | lt_simple_link_test_code='main(){return(0);}' | |
39 | ||
40 | ## Linker Characteristics | |
82e23236 | 41 | case $host_os in |
4f4caf92 AO |
42 | cygwin* | mingw*) |
43 | # FIXME: the MSVC++ port hasn't been tested in a loooong time | |
44 | # When not using gcc, we currently assume that we are using | |
45 | # Microsoft Visual C++. | |
46 | if test "$with_gcc" != yes; then | |
47 | with_gnu_ld=no | |
48 | fi | |
49 | ;; | |
50 | ||
51 | esac | |
52 | ||
53 | ld_shlibs=yes | |
54 | if test "$with_gnu_ld" = yes; then | |
55 | # If archive_cmds runs LD, not CC, wlarc should be empty | |
56 | wlarc='${wl}' | |
57 | ||
58 | # See if GNU ld supports shared libraries. | |
82e23236 | 59 | case $host_os in |
0ef8b11b | 60 | aix3* | aix4* | aix5*) |
898c7238 AO |
61 | # On AIX/PPC, the GNU linker is very broken |
62 | if test "$host_cpu" != ia64; then | |
63 | ld_shlibs=no | |
64 | cat <<EOF 1>&2 | |
4f4caf92 AO |
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 | ||
72 | EOF | |
898c7238 | 73 | fi |
4f4caf92 AO |
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 $LD --help 2>&1 | egrep ': supported targets:.* elf' > /dev/null; then | |
92 | allow_undefined_flag=unsupported | |
93 | # Joseph Beckenbach <jrb3@best.com> says some releases of gcc | |
94 | # support --undefined. This deserves some investigation. FIXME | |
06298abd | 95 | archive_cmds='$CC -nostart $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' |
4f4caf92 AO |
96 | else |
97 | ld_shlibs=no | |
98 | fi | |
99 | ;; | |
100 | ||
101 | cygwin* | mingw*) | |
102 | # hardcode_libdir_flag_spec is actually meaningless, as there is | |
103 | # no search path for DLLs. | |
104 | hardcode_libdir_flag_spec='-L$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 $output_objdir && \ | |
4977bab6 | 111 | if test "x$BUILD_CC" != "x" ; then $BUILD_CC -o impgen impgen.c ; \ |
4f4caf92 | 112 | else $CC -o impgen impgen.c ; fi)~ |
75b9074c | 113 | $output_objdir/impgen $dir/$soroot > $output_objdir/$soname-def' |
4f4caf92 AO |
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~ | |
82e23236 | 122 | case $host_os in |
4f4caf92 AO |
123 | mingw*) |
124 | # mingw values | |
125 | dll_entry=_DllMainCRTStartup@12 | |
126 | dll_exclude_symbols=DllMain@12,DllMainCRTStartup@12,DllEntryPoint@12~ | |
127 | ;; | |
128 | esac | |
129 | ||
130 | # mingw and cygwin differ, and it's simplest to just exclude the union | |
131 | # of the two symbol sets. | |
132 | dll_exclude_symbols=DllMain@12,_cygwin_dll_entry@12,_cygwin_noncygwin_dll_entry@12,DllMainCRTStartup@12,DllEntryPoint@12 | |
133 | ||
134 | # recent cygwin and mingw systems supply a stub DllMain which the user | |
135 | # can override, but on older systems we have to supply one (in ltdll.c) | |
136 | if test "x$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 | ||
82e23236 AO |
153 | # If the export-symbols file already is a .def file (1st line |
154 | # is EXPORTS), use it as is. | |
4f4caf92 | 155 | # If DATA tags from a recent dlltool are present, honour them! |
82e23236 AO |
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~ | |
4f4caf92 | 170 | '"$ltdll_cmds"' |
75b9074c | 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~ |
4f4caf92 | 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~ |
75b9074c AO |
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' | |
4f4caf92 AO |
176 | ;; |
177 | ||
80dc6aa0 | 178 | netbsd* | knetbsd*-gnu) |
4f4caf92 AO |
179 | if echo __ELF__ | $CC -E - | grep __ELF__ >/dev/null; then |
180 | archive_cmds='$LD -Bshareable $libobjs $deplibs $linker_flags -o $lib' | |
181 | wlarc= | |
182 | else | |
33456445 AO |
183 | archive_cmds='$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' | |
4f4caf92 AO |
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 | ||
200 | EOF | |
201 | elif $LD --help 2>&1 | egrep ': supported targets:.* elf' > /dev/null; then | |
06298abd AO |
202 | archive_cmds='$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 $lib' | |
4f4caf92 AO |
204 | else |
205 | ld_shlibs=no | |
206 | fi | |
207 | ;; | |
208 | ||
209 | sunos4*) | |
210 | archive_cmds='$LD -assert pure-text -Bshareable -o $lib $libobjs $deplibs $linker_flags' | |
211 | wlarc= | |
212 | hardcode_direct=yes | |
213 | hardcode_shlibpath_var=no | |
214 | ;; | |
215 | ||
1abb828a D |
216 | tpf*) |
217 | ld_shlibs=yes | |
218 | ;; | |
219 | ||
4f4caf92 AO |
220 | *) |
221 | if $LD --help 2>&1 | egrep ': supported targets:.* elf' > /dev/null; then | |
82e23236 AO |
222 | archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib' |
223 | archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib' | |
4f4caf92 AO |
224 | else |
225 | ld_shlibs=no | |
226 | fi | |
227 | ;; | |
228 | esac | |
229 | ||
230 | if test "$ld_shlibs" = yes; then | |
231 | runpath_var=LD_RUN_PATH | |
06298abd AO |
232 | hardcode_libdir_flag_spec='${wl}--rpath ${wl}$libdir' |
233 | export_dynamic_flag_spec='${wl}--export-dynamic' | |
4f4caf92 AO |
234 | case $host_os in |
235 | cygwin* | mingw*) | |
236 | # dlltool doesn't understand --whole-archive et. al. | |
237 | whole_archive_flag_spec= | |
238 | ;; | |
239 | *) | |
240 | # ancient GNU ld didn't support --whole-archive et. al. | |
241 | if $LD --help 2>&1 | egrep 'no-whole-archive' > /dev/null; then | |
242 | whole_archive_flag_spec="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive' | |
243 | else | |
244 | whole_archive_flag_spec= | |
245 | fi | |
246 | ;; | |
247 | esac | |
248 | fi | |
249 | else | |
250 | # PORTME fill in a description of your system's linker (not GNU ld) | |
82e23236 | 251 | case $host_os in |
4f4caf92 AO |
252 | aix3*) |
253 | allow_undefined_flag=unsupported | |
254 | always_export_symbols=yes | |
255 | archive_expsym_cmds='$LD -o $output_objdir/$soname $libobjs $deplibs $linker_flags -bE:$export_symbols -T512 -H512 -bM:SRE~$AR $AR_FLAGS $lib $output_objdir/$soname' | |
256 | # Note: this linker hardcodes the directories in LIBPATH if there | |
257 | # are no directories specified by -L. | |
258 | hardcode_minus_L=yes | |
259 | if test "$with_gcc" = yes && test -z "$link_static_flag"; then | |
260 | # Neither direct hardcoding nor static linking is supported with a | |
261 | # broken collect2. | |
262 | hardcode_direct=unsupported | |
263 | fi | |
264 | ;; | |
265 | ||
0ef8b11b | 266 | aix4* | aix5*) |
82e23236 | 267 | hardcode_direct=yes |
4f4caf92 | 268 | hardcode_libdir_separator=':' |
82e23236 AO |
269 | link_all_deplibs=yes |
270 | # When large executables or shared objects are built, AIX ld can | |
271 | # have problems creating the table of contents. If linking a library | |
272 | # or program results in "error TOC overflow" add -mminimal-toc to | |
273 | # CXXFLAGS/CFLAGS for g++/gcc. In the cases where that is not | |
274 | # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS. | |
4f4caf92 | 275 | if test "$with_gcc" = yes; then |
82e23236 AO |
276 | case $host_os in aix4.[012]|aix4.[012].*) |
277 | # We only want to do this on AIX 4.2 and lower, the check | |
278 | # below for broken collect2 doesn't work under 4.3+ | |
279 | collect2name=`${CC} -print-prog-name=collect2` | |
280 | if test -f "$collect2name" && \ | |
281 | strings "$collect2name" | grep resolve_lib_name >/dev/null | |
282 | then | |
283 | # We have reworked collect2 | |
284 | hardcode_direct=yes | |
285 | else | |
286 | # We have old collect2 | |
287 | hardcode_direct=unsupported | |
288 | # It fails to find uninstalled libraries when the uninstalled | |
289 | # path is not listed in the libpath. Setting hardcode_minus_L | |
290 | # to unsupported forces relinking | |
291 | hardcode_minus_L=yes | |
292 | hardcode_libdir_flag_spec='-L$libdir' | |
293 | hardcode_libdir_separator= | |
294 | fi | |
295 | esac | |
296 | shared_flag='-shared' | |
297 | else | |
298 | # not using gcc | |
299 | if test "$host_cpu" = ia64; then | |
300 | shared_flag='${wl}-G' | |
4f4caf92 | 301 | else |
82e23236 | 302 | shared_flag='${wl}-bM:SRE' |
4f4caf92 | 303 | fi |
82e23236 AO |
304 | fi |
305 | ||
306 | if test "$host_cpu" = ia64; then | |
307 | # On IA64, the linker does run time linking by default, so we don't | |
308 | # have to do anything special. | |
309 | aix_use_runtimelinking=no | |
898c7238 AO |
310 | if test $with_gnu_ld = no; then |
311 | exp_sym_flag='-Bexport' | |
312 | no_entry_flag="" | |
313 | fi | |
4f4caf92 | 314 | else |
82e23236 AO |
315 | # Test if we are trying to use run time linking, or normal AIX style linking. |
316 | # If -brtl is somewhere in LDFLAGS, we need to do run time linking. | |
317 | aix_use_runtimelinking=no | |
318 | for ld_flag in $LDFLAGS; do | |
319 | if (test $ld_flag = "-brtl" || test $ld_flag = "-Wl,-brtl" ); then | |
320 | aix_use_runtimelinking=yes | |
321 | break | |
322 | fi | |
323 | done | |
324 | exp_sym_flag='-bexport' | |
325 | no_entry_flag='-bnoentry' | |
4f4caf92 | 326 | fi |
7ca0e6d9 DE |
327 | # -bexpall does not export symbols beginning with underscore (_) |
328 | always_export_symbols=yes | |
82e23236 AO |
329 | if test "$aix_use_runtimelinking" = yes; then |
330 | # Warning - without using the other run time loading flags (-brtl), -berok will | |
331 | # link without error, but may produce a broken library. | |
332 | allow_undefined_flag=' ${wl}-berok' | |
333 | hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:/usr/lib:/lib' | |
334 | archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${allow_undefined_flag} '"\${wl}$no_entry_flag \${wl}$exp_sym_flag:\$export_symbols" | |
335 | else | |
336 | if test "$host_cpu" = ia64; then | |
898c7238 AO |
337 | if test $with_gnu_ld = no; then |
338 | hardcode_libdir_flag_spec='${wl}-R $libdir:/usr/lib:/lib' | |
339 | allow_undefined_flag="-z nodefs" | |
340 | 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" | |
341 | fi | |
82e23236 AO |
342 | else |
343 | allow_undefined_flag=' ${wl}-berok' | |
344 | # -bexpall does not export symbols beginning with underscore (_) | |
345 | always_export_symbols=yes | |
346 | # Exported symbols can be pulled into shared objects from archives | |
347 | whole_archive_flag_spec=' ' | |
348 | build_libtool_need_lc=yes | |
349 | hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:/usr/lib:/lib' | |
350 | # This is similar to how AIX traditionally builds it's shared libraries. | |
351 | 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' | |
352 | fi | |
353 | fi | |
7ca0e6d9 | 354 | ;; |
4f4caf92 AO |
355 | |
356 | amigaos*) | |
357 | 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 $output_objdir && a2ixlibrary -32)' | |
358 | hardcode_libdir_flag_spec='-L$libdir' | |
359 | hardcode_minus_L=yes | |
360 | # see comment about different semantics on the GNU ld section | |
361 | ld_shlibs=no | |
362 | ;; | |
363 | ||
364 | cygwin* | mingw*) | |
365 | # When not using gcc, we currently assume that we are using | |
366 | # Microsoft Visual C++. | |
367 | # hardcode_libdir_flag_spec is actually meaningless, as there is | |
368 | # no search path for DLLs. | |
369 | hardcode_libdir_flag_spec=' ' | |
370 | allow_undefined_flag=unsupported | |
371 | # Tell ltmain to make .lib files, not .a files. | |
372 | libext=lib | |
373 | # FIXME: Setting linknames here is a bad hack. | |
374 | archive_cmds='$CC -o $lib $libobjs $compiler_flags `echo "$deplibs" | sed -e '\''s/ -lc$//'\''` -link -dll~linknames=' | |
375 | # The linker will automatically build a .lib file if we build a DLL. | |
376 | old_archive_from_new_cmds='true' | |
377 | # FIXME: Should let the user specify the lib program. | |
378 | old_archive_cmds='lib /OUT:$oldlib$oldobjs$old_deplibs' | |
82e23236 | 379 | fix_srcfile_path='`cygpath -w "$srcfile"`' |
4f4caf92 AO |
380 | ;; |
381 | ||
43d8d958 AT |
382 | darwin* | rhapsody*) |
383 | case "$host_os" in | |
384 | rhapsody* | darwin1.[[012]]) | |
385 | allow_undefined_flag='-undefined suppress' | |
386 | ;; | |
387 | *) # Darwin 1.3 on | |
388 | if test -z ${MACOSX_DEPLOYMENT_TARGET} ; then | |
389 | allow_undefined_flag='-flat_namespace -undefined suppress' | |
390 | else | |
391 | case ${MACOSX_DEPLOYMENT_TARGET} in | |
392 | 10.[[012]]) | |
393 | allow_undefined_flag='-flat_namespace -undefined suppress' | |
394 | ;; | |
395 | 10.*) | |
396 | allow_undefined_flag='-undefined dynamic_lookup' | |
397 | ;; | |
398 | esac | |
399 | fi | |
400 | ;; | |
401 | esac | |
402 | # Disable shared library build on OS-X older than 10.3. | |
403 | case $host_os in | |
404 | darwin[1-6]*) | |
405 | can_build_shared=no | |
406 | ;; | |
407 | darwin7*) | |
408 | can_build_shared=yes | |
409 | ;; | |
410 | esac | |
411 | output_verbose_link_cmd='echo' | |
412 | archive_cmds='$CC -dynamiclib $allow_undefined_flag -o $lib $libobjs $deplibs$compiler_flags -install_name $rpath/$soname $verstring' | |
413 | module_cmds='$CC $allow_undefined_flag -o $lib -bundle $libobjs $deplibs$compiler_flags' | |
414 | # Don't fix this by using the ld -exported_symbols_list flag, | |
415 | # it doesn't exist in older darwin ld's | |
416 | 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}' | |
417 | 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}' | |
418 | hardcode_direct=no | |
419 | hardcode_automatic=yes | |
420 | hardcode_shlibpath_var=unsupported | |
421 | whole_archive_flag_spec='-all_load $convenience' | |
422 | link_all_deplibs=yes | |
4f4caf92 AO |
423 | ;; |
424 | ||
43d8d958 AT |
425 | freebsd1*) |
426 | ld_shlibs=no | |
427 | ;; | |
428 | ||
4f4caf92 AO |
429 | # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor |
430 | # support. Future versions do this automatically, but an explicit c++rt0.o | |
431 | # does not break anything, and helps significantly (at the cost of a little | |
432 | # extra space). | |
433 | freebsd2.2*) | |
434 | archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags /usr/lib/c++rt0.o' | |
435 | hardcode_libdir_flag_spec='-R$libdir' | |
436 | hardcode_direct=yes | |
437 | hardcode_shlibpath_var=no | |
438 | ;; | |
439 | ||
440 | # Unfortunately, older versions of FreeBSD 2 do not have this feature. | |
441 | freebsd2*) | |
442 | archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags' | |
443 | hardcode_direct=yes | |
444 | hardcode_minus_L=yes | |
445 | hardcode_shlibpath_var=no | |
446 | ;; | |
447 | ||
448 | # FreeBSD 3 and greater uses gcc -shared to do shared libraries. | |
80dc6aa0 | 449 | freebsd* | kfreebsd*-gnu) |
4f4caf92 AO |
450 | archive_cmds='$CC -shared -o $lib $libobjs $deplibs $compiler_flags' |
451 | hardcode_libdir_flag_spec='-R$libdir' | |
452 | hardcode_direct=yes | |
453 | hardcode_shlibpath_var=no | |
454 | ;; | |
455 | ||
456 | hpux9* | hpux10* | hpux11*) | |
f5cc59a7 AO |
457 | case "$host_cpu" in |
458 | ia64*) | |
459 | hardcode_direct=no | |
460 | hardcode_shlibpath_var=no | |
461 | archive_cmds='$LD -b +h $soname -o $lib $libobjs $deplibs $linker_flags' | |
462 | hardcode_libdir_flag_spec='-L$libdir' ;; | |
463 | *) | |
464 | if test $with_gcc = yes; then | |
465 | case "$host_os" in | |
466 | 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 $lib' ;; | |
467 | *) archive_cmds='$CC -shared -fPIC ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $libobjs $deplibs $compiler_flags' ;; | |
468 | esac | |
469 | else | |
470 | case $host_os in | |
471 | hpux9*) archive_cmds='$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 $lib' ;; | |
472 | *) archive_cmds='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags' ;; | |
473 | esac | |
474 | fi | |
475 | hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir' | |
476 | hardcode_libdir_separator=: | |
477 | hardcode_minus_L=yes # Not in the search PATH, but as the default | |
478 | # location of the library. | |
479 | ;; | |
480 | esac | |
4f4caf92 | 481 | export_dynamic_flag_spec='${wl}-E' |
f5cc59a7 | 482 | hardcode_direct=yes |
4f4caf92 AO |
483 | ;; |
484 | ||
485 | irix5* | irix6*) | |
486 | if test "$with_gcc" = yes; then | |
487 | 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 $lib' | |
488 | else | |
489 | archive_cmds='$LD -shared $libobjs $deplibs $linker_flags -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${objdir}/so_locations -o $lib' | |
490 | fi | |
491 | hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir' | |
492 | hardcode_libdir_separator=: | |
493 | link_all_deplibs=yes | |
494 | ;; | |
495 | ||
80dc6aa0 | 496 | netbsd* | knetbsd*-gnu) |
4f4caf92 AO |
497 | if echo __ELF__ | $CC -E - | grep __ELF__ >/dev/null; then |
498 | archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags' # a.out | |
499 | else | |
500 | archive_cmds='$LD -shared -o $lib $libobjs $deplibs $linker_flags' # ELF | |
501 | fi | |
82e23236 AO |
502 | hardcode_libdir_flag_spec='-R$libdir' |
503 | hardcode_direct=yes | |
504 | hardcode_shlibpath_var=no | |
505 | ;; | |
506 | ||
507 | newsos6) | |
508 | archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linkopts' | |
4f4caf92 | 509 | hardcode_direct=yes |
82e23236 AO |
510 | hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir' |
511 | hardcode_libdir_separator=: | |
4f4caf92 AO |
512 | hardcode_shlibpath_var=no |
513 | ;; | |
514 | ||
515 | openbsd*) | |
516 | archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags' | |
517 | hardcode_libdir_flag_spec='-R$libdir' | |
518 | hardcode_direct=yes | |
519 | hardcode_shlibpath_var=no | |
520 | ;; | |
521 | ||
522 | os2*) | |
523 | hardcode_libdir_flag_spec='-L$libdir' | |
524 | hardcode_minus_L=yes | |
525 | allow_undefined_flag=unsupported | |
526 | archive_cmds='$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' | |
527 | old_archive_from_new_cmds='emximp -o $output_objdir/$libname.a $output_objdir/$libname.def' | |
528 | ;; | |
529 | ||
530 | osf3*) | |
531 | if test "$with_gcc" = yes; then | |
532 | allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*' | |
533 | archive_cmds='$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 $lib' | |
534 | else | |
535 | allow_undefined_flag=' -expect_unresolved \*' | |
536 | archive_cmds='$LD -shared${allow_undefined_flag} $libobjs $deplibs $linker_flags -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${objdir}/so_locations -o $lib' | |
537 | fi | |
538 | hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir' | |
539 | hardcode_libdir_separator=: | |
540 | ;; | |
541 | ||
542 | osf4* | osf5*) # as osf3* with the addition of -msym flag | |
543 | if test "$with_gcc" = yes; then | |
544 | allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*' | |
545 | archive_cmds='$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 $lib' | |
75b9074c | 546 | hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir' |
4f4caf92 AO |
547 | else |
548 | allow_undefined_flag=' -expect_unresolved \*' | |
549 | 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' | |
82e23236 AO |
550 | archive_expsym_cmds='for i in `cat $export_symbols`; do printf "-exported_symbol " >> $lib.exp; echo "\$i" >> $lib.exp; done; echo "-hidden">> $lib.exp~ |
551 | $LD -shared${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' | |
75b9074c AO |
552 | |
553 | # cc supports -rpath directly | |
554 | hardcode_libdir_flag_spec='-rpath $libdir' | |
4f4caf92 | 555 | fi |
4f4caf92 AO |
556 | hardcode_libdir_separator=: |
557 | ;; | |
558 | ||
559 | sco3.2v5*) | |
560 | archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' | |
561 | hardcode_shlibpath_var=no | |
562 | runpath_var=LD_RUN_PATH | |
563 | hardcode_runpath_var=yes | |
564 | ;; | |
565 | ||
566 | solaris*) | |
75b9074c | 567 | no_undefined_flag=' -z defs' |
066bd40d MM |
568 | if test "$with_gcc" = yes; then |
569 | archive_cmds='$CC -shared ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags' | |
570 | archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~ | |
571 | $CC -shared ${wl}-M ${wl}$lib.exp ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags~$rm $lib.exp' | |
572 | else | |
573 | archive_cmds='$LD -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $linker_flags' | |
574 | archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~ | |
575 | $LD -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$rm $lib.exp' | |
576 | fi | |
4f4caf92 AO |
577 | hardcode_libdir_flag_spec='-R$libdir' |
578 | hardcode_shlibpath_var=no | |
82e23236 | 579 | case $host_os in |
4f4caf92 AO |
580 | solaris2.[0-5] | solaris2.[0-5].*) ;; |
581 | *) # Supported since Solaris 2.6 (maybe 2.5.1?) | |
582 | whole_archive_flag_spec='-z allextract$convenience -z defaultextract' ;; | |
583 | esac | |
584 | link_all_deplibs=yes | |
585 | ;; | |
586 | ||
587 | sunos4*) | |
588 | archive_cmds='$LD -assert pure-text -Bstatic -o $lib $libobjs $deplibs $linker_flags' | |
589 | hardcode_libdir_flag_spec='-L$libdir' | |
590 | hardcode_direct=yes | |
591 | hardcode_minus_L=yes | |
592 | hardcode_shlibpath_var=no | |
593 | ;; | |
594 | ||
595 | sysv4) | |
596 | archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' | |
597 | runpath_var='LD_RUN_PATH' | |
598 | hardcode_shlibpath_var=no | |
599 | hardcode_direct=no #Motorola manual says yes, but my tests say they lie | |
600 | ;; | |
601 | ||
602 | sysv4.3*) | |
603 | archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' | |
604 | hardcode_shlibpath_var=no | |
605 | export_dynamic_flag_spec='-Bexport' | |
606 | ;; | |
607 | ||
608 | sysv5*) | |
609 | no_undefined_flag=' -z text' | |
610 | # $CC -shared without GNU ld will not create a library from C++ | |
611 | # object files and a static libstdc++, better avoid it by now | |
612 | archive_cmds='$LD -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $linker_flags' | |
613 | archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~ | |
614 | $LD -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$rm $lib.exp' | |
615 | hardcode_libdir_flag_spec= | |
616 | hardcode_shlibpath_var=no | |
617 | runpath_var='LD_RUN_PATH' | |
618 | ;; | |
619 | ||
620 | uts4*) | |
621 | archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' | |
622 | hardcode_libdir_flag_spec='-L$libdir' | |
623 | hardcode_shlibpath_var=no | |
624 | ;; | |
625 | ||
626 | dgux*) | |
627 | archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' | |
628 | hardcode_libdir_flag_spec='-L$libdir' | |
629 | hardcode_shlibpath_var=no | |
630 | ;; | |
631 | ||
632 | sysv4*MP*) | |
633 | if test -d /usr/nec; then | |
634 | archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' | |
635 | hardcode_shlibpath_var=no | |
636 | runpath_var=LD_RUN_PATH | |
637 | hardcode_runpath_var=yes | |
638 | ld_shlibs=yes | |
639 | fi | |
640 | ;; | |
641 | ||
642 | sysv4.2uw2*) | |
643 | archive_cmds='$LD -G -o $lib $libobjs $deplibs $linker_flags' | |
644 | hardcode_direct=yes | |
645 | hardcode_minus_L=no | |
646 | hardcode_shlibpath_var=no | |
647 | hardcode_runpath_var=yes | |
648 | runpath_var=LD_RUN_PATH | |
649 | ;; | |
650 | ||
33456445 AO |
651 | sysv5uw7* | unixware7*) |
652 | no_undefined_flag='${wl}-z ${wl}text' | |
653 | if test "$GCC" = yes; then | |
654 | archive_cmds='$CC -shared ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags' | |
655 | else | |
656 | archive_cmds='$CC -G ${wl}-h ${wl}$soname -o $lib $libobjs $deplibs $compiler_flags' | |
657 | fi | |
4f4caf92 AO |
658 | runpath_var='LD_RUN_PATH' |
659 | hardcode_shlibpath_var=no | |
660 | ;; | |
661 | ||
662 | *) | |
663 | ld_shlibs=no | |
664 | ;; | |
665 | esac | |
666 | fi | |
667 | ||
668 | ## Compiler Characteristics: PIC flags, static flags, etc | |
669 | if test "X${ac_cv_prog_cc_pic+set}" = Xset; then | |
89820b43 | 670 | : |
4f4caf92 AO |
671 | else |
672 | ac_cv_prog_cc_pic= | |
673 | ac_cv_prog_cc_shlib= | |
674 | ac_cv_prog_cc_wl= | |
675 | ac_cv_prog_cc_static= | |
676 | ac_cv_prog_cc_no_builtin= | |
677 | ac_cv_prog_cc_can_build_shared=$can_build_shared | |
678 | ||
679 | if test "$with_gcc" = yes; then | |
680 | ac_cv_prog_cc_wl='-Wl,' | |
681 | ac_cv_prog_cc_static='-static' | |
682 | ||
82e23236 | 683 | case $host_os in |
4f4caf92 | 684 | aix*) |
82e23236 AO |
685 | # All AIX code is PIC. |
686 | if test "$host_cpu" = ia64; then | |
687 | # AIX 5 now supports IA64 processor | |
688 | lt_cv_prog_cc_static='-Bstatic' | |
689 | else | |
690 | lt_cv_prog_cc_static='-bnso -bI:/lib/syscalls.exp' | |
691 | fi | |
976b230d | 692 | ;; |
75b9074c AO |
693 | amigaos*) |
694 | # FIXME: we need at least 68020 code to build shared libraries, but | |
695 | # adding the `-m68020' flag to GCC prevents building anything better, | |
696 | # like `-m68040'. | |
697 | ac_cv_prog_cc_pic='-m68020 -resident32 -malways-restore-a4' | |
698 | ;; | |
699 | beos* | irix5* | irix6* | osf3* | osf4* | osf5*) | |
700 | # PIC is the default for these OSes. | |
b6b14b1b | 701 | ;; |
4f4caf92 AO |
702 | cygwin* | mingw* | os2*) |
703 | # This hack is so that the source file can tell whether it is being | |
704 | # built for inclusion in a dll (and should export symbols for example). | |
705 | ac_cv_prog_cc_pic='-DDLL_EXPORT' | |
706 | ;; | |
75b9074c AO |
707 | darwin* | rhapsody*) |
708 | # PIC is the default on this platform | |
709 | # Common symbols not allowed in MH_DYLIB files | |
43d8d958 | 710 | ac_cv_prog_cc_pic='-fno-common' |
75b9074c AO |
711 | ;; |
712 | *djgpp*) | |
713 | # DJGPP does not support shared libraries at all | |
714 | ac_cv_prog_cc_pic= | |
4f4caf92 AO |
715 | ;; |
716 | sysv4*MP*) | |
717 | if test -d /usr/nec; then | |
718 | ac_cv_prog_cc_pic=-Kconform_pic | |
719 | fi | |
720 | ;; | |
721 | *) | |
722 | ac_cv_prog_cc_pic='-fPIC' | |
723 | ;; | |
724 | esac | |
725 | else | |
726 | # PORTME Check for PIC flags for the system compiler. | |
82e23236 AO |
727 | case $host_os in |
728 | aix*) | |
4f4caf92 | 729 | # All AIX code is PIC. |
82e23236 | 730 | ac_cv_prog_cc_static="$ac_cv_prog_cc_static ${ac_cv_prog_cc_wl}-lC" |
4f4caf92 AO |
731 | ;; |
732 | ||
733 | hpux9* | hpux10* | hpux11*) | |
734 | # Is there a better ac_cv_prog_cc_static that works with the bundled CC? | |
735 | ac_cv_prog_cc_wl='-Wl,' | |
736 | ac_cv_prog_cc_static="${ac_cv_prog_cc_wl}-a ${ac_cv_prog_cc_wl}archive" | |
737 | ac_cv_prog_cc_pic='+Z' | |
738 | ;; | |
739 | ||
740 | irix5* | irix6*) | |
741 | ac_cv_prog_cc_wl='-Wl,' | |
742 | ac_cv_prog_cc_static='-non_shared' | |
743 | # PIC (with -KPIC) is the default. | |
744 | ;; | |
745 | ||
746 | cygwin* | mingw* | os2*) | |
747 | # This hack is so that the source file can tell whether it is being | |
748 | # built for inclusion in a dll (and should export symbols for example). | |
749 | ac_cv_prog_cc_pic='-DDLL_EXPORT' | |
750 | ;; | |
751 | ||
82e23236 AO |
752 | newsos6) |
753 | ac_cv_prog_cc_pic='-KPIC' | |
754 | ac_cv_prog_cc_static='-Bstatic' | |
755 | ;; | |
756 | ||
4f4caf92 AO |
757 | osf3* | osf4* | osf5*) |
758 | # All OSF/1 code is PIC. | |
759 | ac_cv_prog_cc_wl='-Wl,' | |
760 | ac_cv_prog_cc_static='-non_shared' | |
761 | ;; | |
762 | ||
763 | sco3.2v5*) | |
764 | ac_cv_prog_cc_pic='-Kpic' | |
765 | ac_cv_prog_cc_static='-dn' | |
766 | ac_cv_prog_cc_shlib='-belf' | |
767 | ;; | |
768 | ||
769 | solaris*) | |
770 | ac_cv_prog_cc_pic='-KPIC' | |
771 | ac_cv_prog_cc_static='-Bstatic' | |
772 | ac_cv_prog_cc_wl='-Wl,' | |
773 | ;; | |
774 | ||
775 | sunos4*) | |
776 | ac_cv_prog_cc_pic='-PIC' | |
777 | ac_cv_prog_cc_static='-Bstatic' | |
778 | ac_cv_prog_cc_wl='-Qoption ld ' | |
779 | ;; | |
780 | ||
781 | sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*) | |
782 | ac_cv_prog_cc_pic='-KPIC' | |
783 | ac_cv_prog_cc_static='-Bstatic' | |
784 | ac_cv_prog_cc_wl='-Wl,' | |
785 | ;; | |
786 | ||
787 | uts4*) | |
788 | ac_cv_prog_cc_pic='-pic' | |
789 | ac_cv_prog_cc_static='-Bstatic' | |
790 | ;; | |
791 | ||
792 | sysv4*MP*) | |
793 | if test -d /usr/nec ;then | |
794 | ac_cv_prog_cc_pic='-Kconform_pic' | |
795 | ac_cv_prog_cc_static='-Bstatic' | |
796 | fi | |
797 | ;; | |
798 | ||
799 | *) | |
800 | ac_cv_prog_cc_can_build_shared=no | |
801 | ;; | |
802 | esac | |
803 | fi | |
b6b14b1b AO |
804 | case "$host_os" in |
805 | # Platforms which do not suport PIC and -DPIC is meaningless | |
806 | # on them: | |
807 | *djgpp*) | |
808 | ac_cv_prog_cc_pic= | |
809 | ;; | |
810 | *) | |
811 | ac_cv_prog_cc_pic="$ac_cv_prog_cc_pic -DPIC" | |
812 | ;; | |
813 | esac | |
4f4caf92 AO |
814 | fi |
815 | ||
816 | need_lc=yes | |
817 | if test "$enable_shared" = yes && test "$with_gcc" = yes; then | |
82e23236 | 818 | case $archive_cmds in |
4f4caf92 AO |
819 | *'~'*) |
820 | # FIXME: we may have to deal with multi-command sequences. | |
821 | ;; | |
822 | '$CC '*) | |
823 | # Test whether the compiler implicitly links with -lc since on some | |
824 | # systems, -lgcc has to come before -lc. If gcc already passes -lc | |
825 | # to ld, don't add -lc before -lgcc. | |
89820b43 | 826 | echo $ac_n "checking whether -lc should be explicitly linked in... $ac_c" 1>&6 |
4f4caf92 AO |
827 | if eval "test \"`echo '$''{'ac_cv_archive_cmds_needs_lc'+set}'`\" = set"; then |
828 | echo $ac_n "(cached) $ac_c" 1>&6 | |
829 | need_lc=$ac_cv_archive_cmds_needs_lc | |
830 | else | |
831 | $rm conftest* | |
832 | echo "static int dummy;" > conftest.$ac_ext | |
89820b43 | 833 | if { (eval echo ltcf-c.sh:need_lc: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>conftest.err; }; then |
4f4caf92 AO |
834 | # Append any warnings to the config.log. |
835 | cat conftest.err 1>&5 | |
836 | soname=conftest | |
837 | lib=conftest | |
898c7238 | 838 | libobjs=conftest.$objext |
4f4caf92 | 839 | deplibs= |
89820b43 | 840 | wl=$ac_cv_prog_cc_wl |
4f4caf92 AO |
841 | compiler_flags=-v |
842 | linker_flags=-v | |
843 | verstring= | |
844 | output_objdir=. | |
845 | libname=conftest | |
06298abd | 846 | save_allow_undefined_flag=$allow_undefined_flag |
4f4caf92 | 847 | allow_undefined_flag= |
89820b43 | 848 | if { (eval echo ltcf-c.sh:need_lc: \"$archive_cmds\") 1>&5; (eval $archive_cmds) 2>&1 | grep " -lc " 1>&5 ; }; then |
4f4caf92 AO |
849 | need_lc=no |
850 | fi | |
06298abd | 851 | allow_undefined_flag=$save_allow_undefined_flag |
4f4caf92 AO |
852 | else |
853 | cat conftest.err 1>&5 | |
854 | fi | |
855 | fi | |
856 | $rm conftest* | |
857 | echo "$ac_t$need_lc" 1>&6 | |
858 | ;; | |
859 | esac | |
860 | fi | |
861 | ac_cv_archive_cmds_needs_lc=$need_lc |