source: trunk/gcc/ltcf-cxx.sh@ 2777

Last change on this file since 2777 was 1103, checked in by bird, 22 years ago

Synced with binutils.

  • Property cvs2svn:cvs-rev set to 1.2
  • Property svn:eol-style set to native
  • Property svn:executable set to *
File size: 36.2 KB
Line 
1#### This script is meant to be sourced by ltconfig.
2
3# ltcf-cxx.sh - Create a C++ compiler specific configuration
4#
5# Copyright (C) 1996-1999, 2000, 2001, 2003 Free Software Foundation, Inc.
6# Originally by Gordon Matzigkeit <[email protected]>, 1996
7#
8# Original C++ support by:Gary V. Vaughan <[email protected]>
9# Alexandre Oliva <[email protected]>
10# Ossama Othman <[email protected]>
11# Thomas Thanner <[email protected]>
12#
13# This file is free software; you can redistribute it and/or modify it
14# under the terms of the GNU General Public License as published by
15# the Free Software Foundation; either version 2 of the License, or
16# (at your option) any later version.
17#
18# This program is distributed in the hope that it will be useful, but
19# WITHOUT ANY WARRANTY; without even the implied warranty of
20# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
21# General Public License for more details.
22#
23# You should have received a copy of the GNU General Public License
24# along with this program; if not, write to the Free Software
25# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
26#
27# As a special exception to the GNU General Public License, if you
28# distribute this file as part of a program that contains a
29# configuration script generated by Autoconf, you may include it under
30# the same distribution terms that you use for the rest of that program.
31
32
33# Source file extension for C++ test sources.
34ac_ext=cc
35
36# Object file extension for compiled C++ test sources.
37objext=o
38
39# Code to be used in simple compile tests
40lt_simple_compile_test_code="int some_variable = 0;"
41
42# Code to be used in simple link tests
43lt_simple_link_test_code='int main(int, char *[]) { return (0); }'
44
45# C++ compiler
46CXX=${CXX-c++}
47
48# ltmain only uses $CC for tagged configurations so make sure $CC is set.
49CC=${CC-"$CXX"}
50CFLAGS=${CFLAGS-"$CXXFLAGS"}
51
52# Allow CC to be a program name with arguments.
53set dummy $CC
54compiler=$2
55cc_basename=`$echo X"$compiler" | $Xsed -e 's%^.*/%%'`
56
57# Check if we are using GNU gcc (taken/adapted from configure script)
58# We need to check here since "--with-gcc" is set at configure time,
59# not ltconfig time!
60cat > conftest.$ac_ext <<EOF
61#ifdef __GNUC__
62 yes;
63#endif
64EOF
65if { ac_try='${CC-c++} -E conftest.$ac_ext'; { (eval echo \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
66 with_gcc=yes
67
68 # Set up default GNU C++ configuration
69
70 # Check if GNU C++ uses GNU ld as the underlying linker, since the
71 # archiving commands below assume that GNU ld is being used. The
72 # assumption here is that the linker is going to be the same as that
73 # used by the C compiler. For the purposes of GCC, this is ok, but
74 # if someone uses g++ along with a non-GNU C compiler that doesn't
75 # use GNU ld, we may lose. This is ok for the toolchain tree, since
76 # the only users of ltcf-cxx.sh are libstdc++-v3 and libjava,
77 # anyway, and those use both gcc and g++, so the settings are bound
78 # to be the same.
79
80 if test "$with_gnu_ld" = yes; then
81 archive_cmds='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
82 archive_expsym_cmds='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
83
84 hardcode_libdir_flag_spec='${wl}--rpath ${wl}$libdir'
85 export_dynamic_flag_spec='${wl}--export-dynamic'
86
87 # If archive_cmds runs LD, not CC, wlarc should be empty
88 # XXX I think wlarc can be eliminated in ltcf-cxx, but I need to
89 # investigate it a little bit more. (MM)
90 wlarc='${wl}'
91
92 # ancient GNU ld didn't support --whole-archive et. al.
93 if eval "`$CC -print-prog-name=ld` --help 2>&1" | \
94 egrep 'no-whole-archive' > /dev/null; then
95 whole_archive_flag_spec="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
96 else
97 whole_archive_flag_spec=
98 fi
99 else
100 wlarc=
101
102 # A generic and very simple default shared library creation
103 # command for GNU C++ for the case where it uses the native
104 # linker, instead of GNU ld. If possible, this setting should
105 # overridden to take advantage of the native linker features on
106 # the platform it is being used on.
107 archive_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib'
108 fi
109
110 # Commands to make compiler produce verbose output that lists
111 # what "hidden" libraries, object files and flags are used when
112 # linking a shared library.
113 output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | egrep "\-L"'
114
115else
116 with_gcc=no
117 wlarc=
118fi
119
120# PORTME: fill in a description of your system's C++ link characteristics
121case $host_os in
122 aix3*)
123 # FIXME: insert proper C++ library support
124 ld_shlibs=no
125 ;;
126 aix4* | aix5*)
127 archive_cmds=''
128 hardcode_direct=yes
129 hardcode_libdir_separator=':'
130 link_all_deplibs=yes
131 # When large executables or shared objects are built, AIX ld can
132 # have problems creating the table of contents. If linking a library
133 # or program results in "error TOC overflow" add -mminimal-toc to
134 # CXXFLAGS/CFLAGS for g++/gcc. In the cases where that is not
135 # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
136 if test "$with_gcc" = yes; then
137 case $host_os in aix4.[012]|aix4.[012].*)
138 # We only want to do this on AIX 4.2 and lower, the check
139 # below for broken collect2 doesn't work under 4.3+
140 collect2name=`${CC} -print-prog-name=collect2`
141 if test -f "$collect2name" && \
142 strings "$collect2name" | grep resolve_lib_name >/dev/null
143 then
144 # We have reworked collect2
145 hardcode_direct=yes
146 else
147 # We have old collect2
148 hardcode_direct=unsupported
149 # It fails to find uninstalled libraries when the uninstalled
150 # path is not listed in the libpath. Setting hardcode_minus_L
151 # to unsupported forces relinking
152 hardcode_minus_L=yes
153 hardcode_libdir_flag_spec='-L$libdir'
154 hardcode_libdir_separator=
155 fi
156 esac
157 shared_flag='-shared'
158 else
159 # not using gcc
160 if test "$host_cpu" = ia64; then
161 shared_flag='${wl}-G'
162 else
163 shared_flag='${wl}-bM:SRE'
164 fi
165 fi
166
167 if test "$host_cpu" = ia64; then
168 # On IA64, the linker does run time linking by default, so we don't
169 # have to do anything special.
170 aix_use_runtimelinking=no
171 if test $with_gnu_ld = no; then
172 exp_sym_flag='-Bexport'
173 no_entry_flag=""
174 fi
175 else
176 # Test if we are trying to use run time linking, or normal AIX style linking.
177 # If -brtl is somewhere in LDFLAGS, we need to do run time linking.
178 aix_use_runtimelinking=no
179 for ld_flag in $LDFLAGS; do
180 if (test $ld_flag = "-brtl" || test $ld_flag = "-Wl,-brtl" ); then
181 aix_use_runtimelinking=yes
182 break
183 fi
184 done
185 exp_sym_flag='-bexport'
186 no_entry_flag='-bnoentry'
187 fi
188 # It seems that -bexpall does not export symbols beginning with
189 # underscore (_), so it is better to generate a list of symbols to export.
190 always_export_symbols=yes
191 if test "$aix_use_runtimelinking" = yes; then
192 hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:/usr/lib:/lib'
193 allow_undefined_flag=' -Wl,-G'
194 archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${allow_undefined_flag} '"\${wl}$no_entry_flag \${wl}-brtl \${wl}$exp_sym_flag:\$export_symbols"
195 else
196 if test "$host_cpu" = ia64; then
197 if test $with_gnu_ld = no; then
198 hardcode_libdir_flag_spec='${wl}-R $libdir:/usr/lib:/lib'
199 allow_undefined_flag="-z nodefs"
200 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"
201 fi
202 else
203 hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:/usr/lib:/lib'
204 # Warning - without using the other run time loading flags, -berok will
205 # link without error, but may produce a broken library.
206 no_undefined_flag=' ${wl}-bnoerok'
207 allow_undefined_flag=' ${wl}-berok'
208 # -bexpall does not export symbols beginning with underscore (_)
209 always_export_symbols=yes
210 # Exported symbols can be pulled into shared objects from archives
211 whole_archive_flag_spec=' '
212 build_libtool_need_lc=yes
213 # This is similar to how AIX traditionally builds it's shared libraries.
214 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'
215 fi
216 fi
217 ;;
218 chorus*)
219 case $cc_basename in
220 *)
221 # FIXME: insert proper C++ library support
222 ld_shlibs=no
223 ;;
224 esac
225 ;;
226 dgux*)
227 case $cc_basename in
228 ec++)
229 # FIXME: insert proper C++ library support
230 ld_shlibs=no
231 ;;
232 ghcx)
233 # Green Hills C++ Compiler
234 # FIXME: insert proper C++ library support
235 ld_shlibs=no
236 ;;
237 *)
238 # FIXME: insert proper C++ library support
239 ld_shlibs=no
240 ;;
241 esac
242 ;;
243 freebsd[12]*)
244 # C++ shared libraries reported to be fairly broken before switch to ELF
245 ld_shlibs=no
246 ;;
247 freebsd*)
248 # FreeBSD 3 and later use GNU C++ and GNU ld with standard ELF
249 # conventions
250 ld_shlibs=yes
251 ;;
252 gnu*)
253 ;;
254 hpux*)
255 if test $with_gnu_ld = no; then
256 case "$host_cpu" in
257 ia64*)
258 hardcode_libdir_flag_spec='-L$libdir'
259 hardcode_shlibpath_var=no ;;
260 *)
261 hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir' ;;
262 esac
263 hardcode_direct=yes
264 hardcode_libdir_separator=:
265 export_dynamic_flag_spec='${wl}-E'
266 fi
267 hardcode_minus_L=yes # Not in the search PATH, but as the default
268 # location of the library.
269
270 case $cc_basename in
271 CC)
272 # FIXME: insert proper C++ library support
273 ld_shlibs=no
274 ;;
275 aCC)
276 case $host_os in
277 hpux9*) archive_cmds='$rm $output_objdir/$soname~$CC -b ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib' ;;
278 *) archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' ;;
279 esac
280 # Commands to make compiler produce verbose output that lists
281 # what "hidden" libraries, object files and flags are used when
282 # linking a shared library.
283 #
284 # There doesn't appear to be a way to prevent this compiler from
285 # explicitly linking system object files so we need to strip them
286 # from the output so that they don't get included in the library
287 # dependencies.
288 output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | egrep "\-L"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; echo $list'
289 ;;
290 *)
291 if test $with_gcc = yes; then
292 if test $with_gnu_ld = no; then
293 case "$host_os" in
294 hpux9*) archive_cmds='$rm $output_objdir/$soname~$CC -shared -nostdlib -fPIC ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib' ;;
295 *)
296 case "$host_cpu" in
297 ia64*)
298 archive_cmds='$LD -b +h $soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags' ;;
299 *)
300 archive_cmds='$CC -shared -nostdlib -fPIC ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' ;;
301 esac
302 ;;
303 esac
304 fi
305 else
306 # FIXME: insert proper C++ library support
307 ld_shlibs=no
308 fi
309 ;;
310 esac
311 ;;
312 irix5* | irix6*)
313 case $cc_basename in
314 CC)
315 # SGI C++
316 archive_cmds='$CC -shared -all -multigot $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${objdir}/so_locations -o $lib'
317
318 # Archives containing C++ object files must be created using
319 # "CC -ar", where "CC" is the IRIX C++ compiler. This is
320 # necessary to make sure instantiated templates are included
321 # in the archive.
322 old_archive_cmds='$CC -ar -WR,-u -o $oldlib $oldobjs'
323 ;;
324 *)
325 if test "$with_gcc" = yes; then
326 if test "$with_gnu_ld" = no; then
327 archive_cmds='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && echo ${wl}-set_version ${wl}$verstring` ${wl}-update_registry ${wl}${objdir}/so_locations -o $lib'
328 else
329 archive_cmds='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -soname $soname `test -n "$verstring" && echo -set_version $verstring` -o $lib'
330 fi
331 fi
332 hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
333 hardcode_libdir_separator=:
334 link_all_deplibs=yes
335 ;;
336 esac
337 ;;
338 linux*)
339 case $cc_basename in
340 KCC)
341 # Kuck and Associates, Inc. (KAI) C++ Compiler
342
343 # KCC will only create a shared library if the output file
344 # ends with ".so" (or ".sl" for HP-UX), so rename the library
345 # to its proper name (with version) after linking.
346 archive_cmds='templib=`echo $lib | sed -e "s/\.so\..*/\.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib'
347 archive_expsym_cmds='templib=`echo $lib | sed -e "s/\.so\..*/\.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib ${wl}-retain-symbols-file,$export_symbols; mv \$templib $lib'
348
349 # Commands to make compiler produce verbose output that lists
350 # what "hidden" libraries, object files and flags are used when
351 # linking a shared library.
352 #
353 # There doesn't appear to be a way to prevent this compiler from
354 # explicitly linking system object files so we need to strip them
355 # from the output so that they don't get included in the library
356 # dependencies.
357 output_verbose_link_cmd='templist=`$CC $CFLAGS -v conftest.$objext -o libconftest.so 2>&1 | egrep "ld"`; rm -f libconftest.so; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; echo $list'
358
359 hardcode_libdir_flag_spec='${wl}--rpath,$libdir'
360 export_dynamic_flag_spec='${wl}--export-dynamic'
361
362 # Archives containing C++ object files must be created using
363 # "CC -Bstatic", where "CC" is the KAI C++ compiler.
364 old_archive_cmds='$CC -Bstatic -o $oldlib $oldobjs'
365 ;;
366 cxx)
367 # Compaq C++
368 archive_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
369 archive_expsym_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib ${wl}-retain-symbols-file $wl$export_symbols'
370
371 runpath_var=LD_RUN_PATH
372 hardcode_libdir_flag_spec='-rpath $libdir'
373 hardcode_libdir_separator=:
374
375 # Commands to make compiler produce verbose output that lists
376 # what "hidden" libraries, object files and flags are used when
377 # linking a shared library.
378 #
379 # There doesn't appear to be a way to prevent this compiler from
380 # explicitly linking system object files so we need to strip them
381 # from the output so that they don't get included in the library
382 # dependencies.
383 output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | grep "ld"`; templist=`echo $templist | sed "s/\(^.*ld.*\)\( .*ld .*$\)/\1/"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; echo $list'
384 ;;
385 esac
386 ;;
387 lynxos*)
388 # FIXME: insert proper C++ library support
389 ld_shlibs=no
390 ;;
391 m88k*)
392 # FIXME: insert proper C++ library support
393 ld_shlibs=no
394 ;;
395 mvs*)
396 case $cc_basename in
397 cxx)
398 # FIXME: insert proper C++ library support
399 ld_shlibs=no
400 ;;
401 *)
402 # FIXME: insert proper C++ library support
403 ld_shlibs=no
404 ;;
405 esac
406 ;;
407 netbsd*)
408 # NetBSD uses g++ - do we need to do anything?
409 ;;
410 osf3*)
411 case $cc_basename in
412 KCC)
413 # Kuck and Associates, Inc. (KAI) C++ Compiler
414
415 # KCC will only create a shared library if the output file
416 # ends with ".so" (or ".sl" for HP-UX), so rename the library
417 # to its proper name (with version) after linking.
418 archive_cmds='templib=`echo $lib | sed -e "s/\.so\..*/\.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib'
419
420 hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
421 hardcode_libdir_separator=:
422
423 # Archives containing C++ object files must be created using
424 # "CC -Bstatic", where "CC" is the KAI C++ compiler.
425 old_archive_cmds='$CC -Bstatic -o $oldlib $oldobjs'
426
427 ;;
428 RCC)
429 # Rational C++ 2.4.1
430 # FIXME: insert proper C++ library support
431 ld_shlibs=no
432 ;;
433 cxx)
434 allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
435 archive_cmds='$CC -shared${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $soname `test -n "$verstring" && echo ${wl}-set_version $verstring` -update_registry ${objdir}/so_locations -o $lib'
436
437 hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
438 hardcode_libdir_separator=:
439
440 # Commands to make compiler produce verbose output that lists
441 # what "hidden" libraries, object files and flags are used when
442 # linking a shared library.
443 #
444 # There doesn't appear to be a way to prevent this compiler from
445 # explicitly linking system object files so we need to strip them
446 # from the output so that they don't get included in the library
447 # dependencies.
448 output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | grep "ld" | grep -v "ld:"`; templist=`echo $templist | sed "s/\(^.*ld.*\)\( .*ld.*$\)/\1/"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; echo $list'
449 ;;
450 *)
451 if test "$with_gcc" = yes && test "$with_gnu_ld" = no; then
452 allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
453 archive_cmds='$CC -shared -nostdlib ${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && echo ${wl}-set_version ${wl}$verstring` ${wl}-update_registry ${wl}${objdir}/so_locations -o $lib'
454
455 hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
456 hardcode_libdir_separator=:
457
458 # Commands to make compiler produce verbose output that lists
459 # what "hidden" libraries, object files and flags are used when
460 # linking a shared library.
461 output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | egrep "\-L"'
462 else
463 # FIXME: insert proper C++ library support
464 ld_shlibs=no
465 fi
466 ;;
467 esac
468 ;;
469 osf4* | osf5*)