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[gcc.git] / libstdc++-v3 / aclocal.m4
1 # generated automatically by aclocal 1.10 -*- Autoconf -*-
2
3 # Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
4 # 2005, 2006 Free Software Foundation, Inc.
5 # This file is free software; the Free Software Foundation
6 # gives unlimited permission to copy and/or distribute it,
7 # with or without modifications, as long as this notice is preserved.
8
9 # This program is distributed in the hope that it will be useful,
10 # but WITHOUT ANY WARRANTY, to the extent permitted by law; without
11 # even the implied warranty of MERCHANTABILITY or FITNESS FOR A
12 # PARTICULAR PURPOSE.
13
14 m4_if(m4_PACKAGE_VERSION, [2.61],,
15 [m4_fatal([this file was generated for autoconf 2.61.
16 You have another version of autoconf. If you want to use that,
17 you should regenerate the build system entirely.], [63])])
18
19 # Copyright (C) 2002, 2003, 2005, 2006 Free Software Foundation, Inc.
20 #
21 # This file is free software; the Free Software Foundation
22 # gives unlimited permission to copy and/or distribute it,
23 # with or without modifications, as long as this notice is preserved.
24
25 # AM_AUTOMAKE_VERSION(VERSION)
26 # ----------------------------
27 # Automake X.Y traces this macro to ensure aclocal.m4 has been
28 # generated from the m4 files accompanying Automake X.Y.
29 # (This private macro should not be called outside this file.)
30 AC_DEFUN([AM_AUTOMAKE_VERSION],
31 [am__api_version='1.10'
32 dnl Some users find AM_AUTOMAKE_VERSION and mistake it for a way to
33 dnl require some minimum version. Point them to the right macro.
34 m4_if([$1], [1.10], [],
35 [AC_FATAL([Do not call $0, use AM_INIT_AUTOMAKE([$1]).])])dnl
36 ])
37
38 # _AM_AUTOCONF_VERSION(VERSION)
39 # -----------------------------
40 # aclocal traces this macro to find the Autoconf version.
41 # This is a private macro too. Using m4_define simplifies
42 # the logic in aclocal, which can simply ignore this definition.
43 m4_define([_AM_AUTOCONF_VERSION], [])
44
45 # AM_SET_CURRENT_AUTOMAKE_VERSION
46 # -------------------------------
47 # Call AM_AUTOMAKE_VERSION and AM_AUTOMAKE_VERSION so they can be traced.
48 # This function is AC_REQUIREd by AC_INIT_AUTOMAKE.
49 AC_DEFUN([AM_SET_CURRENT_AUTOMAKE_VERSION],
50 [AM_AUTOMAKE_VERSION([1.10])dnl
51 _AM_AUTOCONF_VERSION(m4_PACKAGE_VERSION)])
52
53 # AM_AUX_DIR_EXPAND -*- Autoconf -*-
54
55 # Copyright (C) 2001, 2003, 2005 Free Software Foundation, Inc.
56 #
57 # This file is free software; the Free Software Foundation
58 # gives unlimited permission to copy and/or distribute it,
59 # with or without modifications, as long as this notice is preserved.
60
61 # For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets
62 # $ac_aux_dir to `$srcdir/foo'. In other projects, it is set to
63 # `$srcdir', `$srcdir/..', or `$srcdir/../..'.
64 #
65 # Of course, Automake must honor this variable whenever it calls a
66 # tool from the auxiliary directory. The problem is that $srcdir (and
67 # therefore $ac_aux_dir as well) can be either absolute or relative,
68 # depending on how configure is run. This is pretty annoying, since
69 # it makes $ac_aux_dir quite unusable in subdirectories: in the top
70 # source directory, any form will work fine, but in subdirectories a
71 # relative path needs to be adjusted first.
72 #
73 # $ac_aux_dir/missing
74 # fails when called from a subdirectory if $ac_aux_dir is relative
75 # $top_srcdir/$ac_aux_dir/missing
76 # fails if $ac_aux_dir is absolute,
77 # fails when called from a subdirectory in a VPATH build with
78 # a relative $ac_aux_dir
79 #
80 # The reason of the latter failure is that $top_srcdir and $ac_aux_dir
81 # are both prefixed by $srcdir. In an in-source build this is usually
82 # harmless because $srcdir is `.', but things will broke when you
83 # start a VPATH build or use an absolute $srcdir.
84 #
85 # So we could use something similar to $top_srcdir/$ac_aux_dir/missing,
86 # iff we strip the leading $srcdir from $ac_aux_dir. That would be:
87 # am_aux_dir='\$(top_srcdir)/'`expr "$ac_aux_dir" : "$srcdir//*\(.*\)"`
88 # and then we would define $MISSING as
89 # MISSING="\${SHELL} $am_aux_dir/missing"
90 # This will work as long as MISSING is not called from configure, because
91 # unfortunately $(top_srcdir) has no meaning in configure.
92 # However there are other variables, like CC, which are often used in
93 # configure, and could therefore not use this "fixed" $ac_aux_dir.
94 #
95 # Another solution, used here, is to always expand $ac_aux_dir to an
96 # absolute PATH. The drawback is that using absolute paths prevent a
97 # configured tree to be moved without reconfiguration.
98
99 AC_DEFUN([AM_AUX_DIR_EXPAND],
100 [dnl Rely on autoconf to set up CDPATH properly.
101 AC_PREREQ([2.50])dnl
102 # expand $ac_aux_dir to an absolute path
103 am_aux_dir=`cd $ac_aux_dir && pwd`
104 ])
105
106 # AM_CONDITIONAL -*- Autoconf -*-
107
108 # Copyright (C) 1997, 2000, 2001, 2003, 2004, 2005, 2006
109 # Free Software Foundation, Inc.
110 #
111 # This file is free software; the Free Software Foundation
112 # gives unlimited permission to copy and/or distribute it,
113 # with or without modifications, as long as this notice is preserved.
114
115 # serial 8
116
117 # AM_CONDITIONAL(NAME, SHELL-CONDITION)
118 # -------------------------------------
119 # Define a conditional.
120 AC_DEFUN([AM_CONDITIONAL],
121 [AC_PREREQ(2.52)dnl
122 ifelse([$1], [TRUE], [AC_FATAL([$0: invalid condition: $1])],
123 [$1], [FALSE], [AC_FATAL([$0: invalid condition: $1])])dnl
124 AC_SUBST([$1_TRUE])dnl
125 AC_SUBST([$1_FALSE])dnl
126 _AM_SUBST_NOTMAKE([$1_TRUE])dnl
127 _AM_SUBST_NOTMAKE([$1_FALSE])dnl
128 if $2; then
129 $1_TRUE=
130 $1_FALSE='#'
131 else
132 $1_TRUE='#'
133 $1_FALSE=
134 fi
135 AC_CONFIG_COMMANDS_PRE(
136 [if test -z "${$1_TRUE}" && test -z "${$1_FALSE}"; then
137 AC_MSG_ERROR([[conditional "$1" was never defined.
138 Usually this means the macro was only invoked conditionally.]])
139 fi])])
140
141 # Do all the work for Automake. -*- Autoconf -*-
142
143 # Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
144 # 2005, 2006 Free Software Foundation, Inc.
145 #
146 # This file is free software; the Free Software Foundation
147 # gives unlimited permission to copy and/or distribute it,
148 # with or without modifications, as long as this notice is preserved.
149
150 # serial 12
151
152 # This macro actually does too much. Some checks are only needed if
153 # your package does certain things. But this isn't really a big deal.
154
155 # AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
156 # AM_INIT_AUTOMAKE([OPTIONS])
157 # -----------------------------------------------
158 # The call with PACKAGE and VERSION arguments is the old style
159 # call (pre autoconf-2.50), which is being phased out. PACKAGE
160 # and VERSION should now be passed to AC_INIT and removed from
161 # the call to AM_INIT_AUTOMAKE.
162 # We support both call styles for the transition. After
163 # the next Automake release, Autoconf can make the AC_INIT
164 # arguments mandatory, and then we can depend on a new Autoconf
165 # release and drop the old call support.
166 AC_DEFUN([AM_INIT_AUTOMAKE],
167 [AC_PREREQ([2.60])dnl
168 dnl Autoconf wants to disallow AM_ names. We explicitly allow
169 dnl the ones we care about.
170 m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
171 AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
172 AC_REQUIRE([AC_PROG_INSTALL])dnl
173 if test "`cd $srcdir && pwd`" != "`pwd`"; then
174 # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
175 # is not polluted with repeated "-I."
176 AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
177 # test to see if srcdir already configured
178 if test -f $srcdir/config.status; then
179 AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
180 fi
181 fi
182
183 # test whether we have cygpath
184 if test -z "$CYGPATH_W"; then
185 if (cygpath --version) >/dev/null 2>/dev/null; then
186 CYGPATH_W='cygpath -w'
187 else
188 CYGPATH_W=echo
189 fi
190 fi
191 AC_SUBST([CYGPATH_W])
192
193 # Define the identity of the package.
194 dnl Distinguish between old-style and new-style calls.
195 m4_ifval([$2],
196 [m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
197 AC_SUBST([PACKAGE], [$1])dnl
198 AC_SUBST([VERSION], [$2])],
199 [_AM_SET_OPTIONS([$1])dnl
200 dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
201 m4_if(m4_ifdef([AC_PACKAGE_NAME], 1)m4_ifdef([AC_PACKAGE_VERSION], 1), 11,,
202 [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
203 AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
204 AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
205
206 _AM_IF_OPTION([no-define],,
207 [AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of package])
208 AC_DEFINE_UNQUOTED(VERSION, "$VERSION", [Version number of package])])dnl
209
210 # Some tools Automake needs.
211 AC_REQUIRE([AM_SANITY_CHECK])dnl
212 AC_REQUIRE([AC_ARG_PROGRAM])dnl
213 AM_MISSING_PROG(ACLOCAL, aclocal-${am__api_version})
214 AM_MISSING_PROG(AUTOCONF, autoconf)
215 AM_MISSING_PROG(AUTOMAKE, automake-${am__api_version})
216 AM_MISSING_PROG(AUTOHEADER, autoheader)
217 AM_MISSING_PROG(MAKEINFO, makeinfo)
218 AM_PROG_INSTALL_SH
219 AM_PROG_INSTALL_STRIP
220 AC_REQUIRE([AM_PROG_MKDIR_P])dnl
221 # We need awk for the "check" target. The system "awk" is bad on
222 # some platforms.
223 AC_REQUIRE([AC_PROG_AWK])dnl
224 AC_REQUIRE([AC_PROG_MAKE_SET])dnl
225 AC_REQUIRE([AM_SET_LEADING_DOT])dnl
226 _AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
227 [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
228 [_AM_PROG_TAR([v7])])])
229 _AM_IF_OPTION([no-dependencies],,
230 [AC_PROVIDE_IFELSE([AC_PROG_CC],
231 [_AM_DEPENDENCIES(CC)],
232 [define([AC_PROG_CC],
233 defn([AC_PROG_CC])[_AM_DEPENDENCIES(CC)])])dnl
234 AC_PROVIDE_IFELSE([AC_PROG_CXX],
235 [_AM_DEPENDENCIES(CXX)],
236 [define([AC_PROG_CXX],
237 defn([AC_PROG_CXX])[_AM_DEPENDENCIES(CXX)])])dnl
238 AC_PROVIDE_IFELSE([AC_PROG_OBJC],
239 [_AM_DEPENDENCIES(OBJC)],
240 [define([AC_PROG_OBJC],
241 defn([AC_PROG_OBJC])[_AM_DEPENDENCIES(OBJC)])])dnl
242 ])
243 ])
244
245
246 # When config.status generates a header, we must update the stamp-h file.
247 # This file resides in the same directory as the config header
248 # that is generated. The stamp files are numbered to have different names.
249
250 # Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
251 # loop where config.status creates the headers, so we can generate
252 # our stamp files there.
253 AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
254 [# Compute $1's index in $config_headers.
255 _am_stamp_count=1
256 for _am_header in $config_headers :; do
257 case $_am_header in
258 $1 | $1:* )
259 break ;;
260 * )
261 _am_stamp_count=`expr $_am_stamp_count + 1` ;;
262 esac
263 done
264 echo "timestamp for $1" >`AS_DIRNAME([$1])`/stamp-h[]$_am_stamp_count])
265
266 # Copyright (C) 2001, 2003, 2005 Free Software Foundation, Inc.
267 #
268 # This file is free software; the Free Software Foundation
269 # gives unlimited permission to copy and/or distribute it,
270 # with or without modifications, as long as this notice is preserved.
271
272 # AM_PROG_INSTALL_SH
273 # ------------------
274 # Define $install_sh.
275 AC_DEFUN([AM_PROG_INSTALL_SH],
276 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
277 install_sh=${install_sh-"\$(SHELL) $am_aux_dir/install-sh"}
278 AC_SUBST(install_sh)])
279
280 # Add --enable-maintainer-mode option to configure. -*- Autoconf -*-
281 # From Jim Meyering
282
283 # Copyright (C) 1996, 1998, 2000, 2001, 2002, 2003, 2004, 2005
284 # Free Software Foundation, Inc.
285 #
286 # This file is free software; the Free Software Foundation
287 # gives unlimited permission to copy and/or distribute it,
288 # with or without modifications, as long as this notice is preserved.
289
290 # serial 4
291
292 AC_DEFUN([AM_MAINTAINER_MODE],
293 [AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
294 dnl maintainer-mode is disabled by default
295 AC_ARG_ENABLE(maintainer-mode,
296 [ --enable-maintainer-mode enable make rules and dependencies not useful
297 (and sometimes confusing) to the casual installer],
298 USE_MAINTAINER_MODE=$enableval,
299 USE_MAINTAINER_MODE=no)
300 AC_MSG_RESULT([$USE_MAINTAINER_MODE])
301 AM_CONDITIONAL(MAINTAINER_MODE, [test $USE_MAINTAINER_MODE = yes])
302 MAINT=$MAINTAINER_MODE_TRUE
303 AC_SUBST(MAINT)dnl
304 ]
305 )
306
307 AU_DEFUN([jm_MAINTAINER_MODE], [AM_MAINTAINER_MODE])
308
309 # Fake the existence of programs that GNU maintainers use. -*- Autoconf -*-
310
311 # Copyright (C) 1997, 1999, 2000, 2001, 2003, 2004, 2005
312 # Free Software Foundation, Inc.
313 #
314 # This file is free software; the Free Software Foundation
315 # gives unlimited permission to copy and/or distribute it,
316 # with or without modifications, as long as this notice is preserved.
317
318 # serial 5
319
320 # AM_MISSING_PROG(NAME, PROGRAM)
321 # ------------------------------
322 AC_DEFUN([AM_MISSING_PROG],
323 [AC_REQUIRE([AM_MISSING_HAS_RUN])
324 $1=${$1-"${am_missing_run}$2"}
325 AC_SUBST($1)])
326
327
328 # AM_MISSING_HAS_RUN
329 # ------------------
330 # Define MISSING if not defined so far and test if it supports --run.
331 # If it does, set am_missing_run to use it, otherwise, to nothing.
332 AC_DEFUN([AM_MISSING_HAS_RUN],
333 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
334 AC_REQUIRE_AUX_FILE([missing])dnl
335 test x"${MISSING+set}" = xset || MISSING="\${SHELL} $am_aux_dir/missing"
336 # Use eval to expand $SHELL
337 if eval "$MISSING --run true"; then
338 am_missing_run="$MISSING --run "
339 else
340 am_missing_run=
341 AC_MSG_WARN([`missing' script is too old or missing])
342 fi
343 ])
344
345 # Copyright (C) 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
346 #
347 # This file is free software; the Free Software Foundation
348 # gives unlimited permission to copy and/or distribute it,
349 # with or without modifications, as long as this notice is preserved.
350
351 # AM_PROG_MKDIR_P
352 # ---------------
353 # Check for `mkdir -p'.
354 AC_DEFUN([AM_PROG_MKDIR_P],
355 [AC_PREREQ([2.60])dnl
356 AC_REQUIRE([AC_PROG_MKDIR_P])dnl
357 dnl Automake 1.8 to 1.9.6 used to define mkdir_p. We now use MKDIR_P,
358 dnl while keeping a definition of mkdir_p for backward compatibility.
359 dnl @MKDIR_P@ is magic: AC_OUTPUT adjusts its value for each Makefile.
360 dnl However we cannot define mkdir_p as $(MKDIR_P) for the sake of
361 dnl Makefile.ins that do not define MKDIR_P, so we do our own
362 dnl adjustment using top_builddir (which is defined more often than
363 dnl MKDIR_P).
364 AC_SUBST([mkdir_p], ["$MKDIR_P"])dnl
365 case $mkdir_p in
366 [[\\/$]]* | ?:[[\\/]]*) ;;
367 */*) mkdir_p="\$(top_builddir)/$mkdir_p" ;;
368 esac
369 ])
370
371 # Helper functions for option handling. -*- Autoconf -*-
372
373 # Copyright (C) 2001, 2002, 2003, 2005 Free Software Foundation, Inc.
374 #
375 # This file is free software; the Free Software Foundation
376 # gives unlimited permission to copy and/or distribute it,
377 # with or without modifications, as long as this notice is preserved.
378
379 # serial 3
380
381 # _AM_MANGLE_OPTION(NAME)
382 # -----------------------
383 AC_DEFUN([_AM_MANGLE_OPTION],
384 [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
385
386 # _AM_SET_OPTION(NAME)
387 # ------------------------------
388 # Set option NAME. Presently that only means defining a flag for this option.
389 AC_DEFUN([_AM_SET_OPTION],
390 [m4_define(_AM_MANGLE_OPTION([$1]), 1)])
391
392 # _AM_SET_OPTIONS(OPTIONS)
393 # ----------------------------------
394 # OPTIONS is a space-separated list of Automake options.
395 AC_DEFUN([_AM_SET_OPTIONS],
396 [AC_FOREACH([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
397
398 # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
399 # -------------------------------------------
400 # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
401 AC_DEFUN([_AM_IF_OPTION],
402 [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
403
404 # Check to make sure that the build environment is sane. -*- Autoconf -*-
405
406 # Copyright (C) 1996, 1997, 2000, 2001, 2003, 2005
407 # Free Software Foundation, Inc.
408 #
409 # This file is free software; the Free Software Foundation
410 # gives unlimited permission to copy and/or distribute it,
411 # with or without modifications, as long as this notice is preserved.
412
413 # serial 4
414
415 # AM_SANITY_CHECK
416 # ---------------
417 AC_DEFUN([AM_SANITY_CHECK],
418 [AC_MSG_CHECKING([whether build environment is sane])
419 # Just in case
420 sleep 1
421 echo timestamp > conftest.file
422 # Do `set' in a subshell so we don't clobber the current shell's
423 # arguments. Must try -L first in case configure is actually a
424 # symlink; some systems play weird games with the mod time of symlinks
425 # (eg FreeBSD returns the mod time of the symlink's containing
426 # directory).
427 if (
428 set X `ls -Lt $srcdir/configure conftest.file 2> /dev/null`
429 if test "$[*]" = "X"; then
430 # -L didn't work.
431 set X `ls -t $srcdir/configure conftest.file`
432 fi
433 rm -f conftest.file
434 if test "$[*]" != "X $srcdir/configure conftest.file" \
435 && test "$[*]" != "X conftest.file $srcdir/configure"; then
436
437 # If neither matched, then we have a broken ls. This can happen
438 # if, for instance, CONFIG_SHELL is bash and it inherits a
439 # broken ls alias from the environment. This has actually
440 # happened. Such a system could not be considered "sane".
441 AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken
442 alias in your environment])
443 fi
444
445 test "$[2]" = conftest.file
446 )
447 then
448 # Ok.
449 :
450 else
451 AC_MSG_ERROR([newly created file is older than distributed files!
452 Check your system clock])
453 fi
454 AC_MSG_RESULT(yes)])
455
456 # Copyright (C) 2001, 2003, 2005 Free Software Foundation, Inc.
457 #
458 # This file is free software; the Free Software Foundation
459 # gives unlimited permission to copy and/or distribute it,
460 # with or without modifications, as long as this notice is preserved.
461
462 # AM_PROG_INSTALL_STRIP
463 # ---------------------
464 # One issue with vendor `install' (even GNU) is that you can't
465 # specify the program used to strip binaries. This is especially
466 # annoying in cross-compiling environments, where the build's strip
467 # is unlikely to handle the host's binaries.
468 # Fortunately install-sh will honor a STRIPPROG variable, so we
469 # always use install-sh in `make install-strip', and initialize
470 # STRIPPROG with the value of the STRIP variable (set by the user).
471 AC_DEFUN([AM_PROG_INSTALL_STRIP],
472 [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
473 # Installed binaries are usually stripped using `strip' when the user
474 # run `make install-strip'. However `strip' might not be the right
475 # tool to use in cross-compilation environments, therefore Automake
476 # will honor the `STRIP' environment variable to overrule this program.
477 dnl Don't test for $cross_compiling = yes, because it might be `maybe'.
478 if test "$cross_compiling" != no; then
479 AC_CHECK_TOOL([STRIP], [strip], :)
480 fi
481 INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
482 AC_SUBST([INSTALL_STRIP_PROGRAM])])
483
484 # Copyright (C) 2006 Free Software Foundation, Inc.
485 #
486 # This file is free software; the Free Software Foundation
487 # gives unlimited permission to copy and/or distribute it,
488 # with or without modifications, as long as this notice is preserved.
489
490 # _AM_SUBST_NOTMAKE(VARIABLE)
491 # ---------------------------
492 # Prevent Automake from outputing VARIABLE = @VARIABLE@ in Makefile.in.
493 # This macro is traced by Automake.
494 AC_DEFUN([_AM_SUBST_NOTMAKE])
495
496 # Check how to create a tarball. -*- Autoconf -*-
497
498 # Copyright (C) 2004, 2005 Free Software Foundation, Inc.
499 #
500 # This file is free software; the Free Software Foundation
501 # gives unlimited permission to copy and/or distribute it,
502 # with or without modifications, as long as this notice is preserved.
503
504 # serial 2
505
506 # _AM_PROG_TAR(FORMAT)
507 # --------------------
508 # Check how to create a tarball in format FORMAT.
509 # FORMAT should be one of `v7', `ustar', or `pax'.
510 #
511 # Substitute a variable $(am__tar) that is a command
512 # writing to stdout a FORMAT-tarball containing the directory
513 # $tardir.
514 # tardir=directory && $(am__tar) > result.tar
515 #
516 # Substitute a variable $(am__untar) that extract such
517 # a tarball read from stdin.
518 # $(am__untar) < result.tar
519 AC_DEFUN([_AM_PROG_TAR],
520 [# Always define AMTAR for backward compatibility.
521 AM_MISSING_PROG([AMTAR], [tar])
522 m4_if([$1], [v7],
523 [am__tar='${AMTAR} chof - "$$tardir"'; am__untar='${AMTAR} xf -'],
524 [m4_case([$1], [ustar],, [pax],,
525 [m4_fatal([Unknown tar format])])
526 AC_MSG_CHECKING([how to create a $1 tar archive])
527 # Loop over all known methods to create a tar archive until one works.
528 _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
529 _am_tools=${am_cv_prog_tar_$1-$_am_tools}
530 # Do not fold the above two line into one, because Tru64 sh and
531 # Solaris sh will not grok spaces in the rhs of `-'.
532 for _am_tool in $_am_tools
533 do
534 case $_am_tool in
535 gnutar)
536 for _am_tar in tar gnutar gtar;
537 do
538 AM_RUN_LOG([$_am_tar --version]) && break
539 done
540 am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
541 am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
542 am__untar="$_am_tar -xf -"
543 ;;
544 plaintar)
545 # Must skip GNU tar: if it does not support --format= it doesn't create
546 # ustar tarball either.
547 (tar --version) >/dev/null 2>&1 && continue
548 am__tar='tar chf - "$$tardir"'
549 am__tar_='tar chf - "$tardir"'
550 am__untar='tar xf -'
551 ;;
552 pax)
553 am__tar='pax -L -x $1 -w "$$tardir"'
554 am__tar_='pax -L -x $1 -w "$tardir"'
555 am__untar='pax -r'
556 ;;
557 cpio)
558 am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
559 am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
560 am__untar='cpio -i -H $1 -d'
561 ;;
562 none)
563 am__tar=false
564 am__tar_=false
565 am__untar=false
566 ;;
567 esac
568
569 # If the value was cached, stop now. We just wanted to have am__tar
570 # and am__untar set.
571 test -n "${am_cv_prog_tar_$1}" && break
572
573 # tar/untar a dummy directory, and stop if the command works
574 rm -rf conftest.dir
575 mkdir conftest.dir
576 echo GrepMe > conftest.dir/file
577 AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
578 rm -rf conftest.dir
579 if test -s conftest.tar; then
580 AM_RUN_LOG([$am__untar <conftest.tar])
581 grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
582 fi
583 done
584 rm -rf conftest.dir
585
586 AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
587 AC_MSG_RESULT([$am_cv_prog_tar_$1])])
588 AC_SUBST([am__tar])
589 AC_SUBST([am__untar])
590 ]) # _AM_PROG_TAR
591
592 m4_include([../config/enable.m4])
593 m4_include([../config/futex.m4])
594 m4_include([../config/iconv.m4])
595 m4_include([../config/lead-dot.m4])
596 m4_include([../config/lib-ld.m4])
597 m4_include([../config/lib-link.m4])
598 m4_include([../config/lib-prefix.m4])
599 m4_include([../config/multi.m4])
600 m4_include([../config/no-executables.m4])
601 m4_include([../config/unwind_ipinfo.m4])
602 m4_include([../libtool.m4])
603 m4_include([../ltoptions.m4])
604 m4_include([../ltsugar.m4])
605 m4_include([../ltversion.m4])
606 m4_include([crossconfig.m4])
607 m4_include([linkage.m4])
608 m4_include([acinclude.m4])