VirtualBox

source: vbox/trunk/src/libs/libvorbis-1.3.7/aclocal.m4@ 106199

Last change on this file since 106199 was 96468, checked in by vboxsync, 2 years ago

libs/libvorbis-1.3.7: Re-exporting, hopefully this time everything is there. bugref:10275

  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
File size: 42.9 KB
Line 
1# generated automatically by aclocal 1.16.2 -*- Autoconf -*-
2
3# Copyright (C) 1996-2020 Free Software Foundation, Inc.
4
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
14m4_ifndef([AC_CONFIG_MACRO_DIRS], [m4_defun([_AM_CONFIG_MACRO_DIRS], [])m4_defun([AC_CONFIG_MACRO_DIRS], [_AM_CONFIG_MACRO_DIRS($@)])])
15m4_ifndef([AC_AUTOCONF_VERSION],
16 [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
17m4_if(m4_defn([AC_AUTOCONF_VERSION]), [2.69],,
18[m4_warning([this file was generated for autoconf 2.69.
19You have another version of autoconf. It may work, but is not guaranteed to.
20If you have problems, you may need to regenerate the build system entirely.
21To do so, use the procedure documented by the package, typically 'autoreconf'.])])
22
23# Copyright (C) 2002-2020 Free Software Foundation, Inc.
24#
25# This file is free software; the Free Software Foundation
26# gives unlimited permission to copy and/or distribute it,
27# with or without modifications, as long as this notice is preserved.
28
29# AM_AUTOMAKE_VERSION(VERSION)
30# ----------------------------
31# Automake X.Y traces this macro to ensure aclocal.m4 has been
32# generated from the m4 files accompanying Automake X.Y.
33# (This private macro should not be called outside this file.)
34AC_DEFUN([AM_AUTOMAKE_VERSION],
35[am__api_version='1.16'
36dnl Some users find AM_AUTOMAKE_VERSION and mistake it for a way to
37dnl require some minimum version. Point them to the right macro.
38m4_if([$1], [1.16.2], [],
39 [AC_FATAL([Do not call $0, use AM_INIT_AUTOMAKE([$1]).])])dnl
40])
41
42# _AM_AUTOCONF_VERSION(VERSION)
43# -----------------------------
44# aclocal traces this macro to find the Autoconf version.
45# This is a private macro too. Using m4_define simplifies
46# the logic in aclocal, which can simply ignore this definition.
47m4_define([_AM_AUTOCONF_VERSION], [])
48
49# AM_SET_CURRENT_AUTOMAKE_VERSION
50# -------------------------------
51# Call AM_AUTOMAKE_VERSION and AM_AUTOMAKE_VERSION so they can be traced.
52# This function is AC_REQUIREd by AM_INIT_AUTOMAKE.
53AC_DEFUN([AM_SET_CURRENT_AUTOMAKE_VERSION],
54[AM_AUTOMAKE_VERSION([1.16.2])dnl
55m4_ifndef([AC_AUTOCONF_VERSION],
56 [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
57_AM_AUTOCONF_VERSION(m4_defn([AC_AUTOCONF_VERSION]))])
58
59# AM_AUX_DIR_EXPAND -*- Autoconf -*-
60
61# Copyright (C) 2001-2020 Free Software Foundation, Inc.
62#
63# This file is free software; the Free Software Foundation
64# gives unlimited permission to copy and/or distribute it,
65# with or without modifications, as long as this notice is preserved.
66
67# For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets
68# $ac_aux_dir to '$srcdir/foo'. In other projects, it is set to
69# '$srcdir', '$srcdir/..', or '$srcdir/../..'.
70#
71# Of course, Automake must honor this variable whenever it calls a
72# tool from the auxiliary directory. The problem is that $srcdir (and
73# therefore $ac_aux_dir as well) can be either absolute or relative,
74# depending on how configure is run. This is pretty annoying, since
75# it makes $ac_aux_dir quite unusable in subdirectories: in the top
76# source directory, any form will work fine, but in subdirectories a
77# relative path needs to be adjusted first.
78#
79# $ac_aux_dir/missing
80# fails when called from a subdirectory if $ac_aux_dir is relative
81# $top_srcdir/$ac_aux_dir/missing
82# fails if $ac_aux_dir is absolute,
83# fails when called from a subdirectory in a VPATH build with
84# a relative $ac_aux_dir
85#
86# The reason of the latter failure is that $top_srcdir and $ac_aux_dir
87# are both prefixed by $srcdir. In an in-source build this is usually
88# harmless because $srcdir is '.', but things will broke when you
89# start a VPATH build or use an absolute $srcdir.
90#
91# So we could use something similar to $top_srcdir/$ac_aux_dir/missing,
92# iff we strip the leading $srcdir from $ac_aux_dir. That would be:
93# am_aux_dir='\$(top_srcdir)/'`expr "$ac_aux_dir" : "$srcdir//*\(.*\)"`
94# and then we would define $MISSING as
95# MISSING="\${SHELL} $am_aux_dir/missing"
96# This will work as long as MISSING is not called from configure, because
97# unfortunately $(top_srcdir) has no meaning in configure.
98# However there are other variables, like CC, which are often used in
99# configure, and could therefore not use this "fixed" $ac_aux_dir.
100#
101# Another solution, used here, is to always expand $ac_aux_dir to an
102# absolute PATH. The drawback is that using absolute paths prevent a
103# configured tree to be moved without reconfiguration.
104
105AC_DEFUN([AM_AUX_DIR_EXPAND],
106[AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
107# Expand $ac_aux_dir to an absolute path.
108am_aux_dir=`cd "$ac_aux_dir" && pwd`
109])
110
111# AM_CONDITIONAL -*- Autoconf -*-
112
113# Copyright (C) 1997-2020 Free Software Foundation, Inc.
114#
115# This file is free software; the Free Software Foundation
116# gives unlimited permission to copy and/or distribute it,
117# with or without modifications, as long as this notice is preserved.
118
119# AM_CONDITIONAL(NAME, SHELL-CONDITION)
120# -------------------------------------
121# Define a conditional.
122AC_DEFUN([AM_CONDITIONAL],
123[AC_PREREQ([2.52])dnl
124 m4_if([$1], [TRUE], [AC_FATAL([$0: invalid condition: $1])],
125 [$1], [FALSE], [AC_FATAL([$0: invalid condition: $1])])dnl
126AC_SUBST([$1_TRUE])dnl
127AC_SUBST([$1_FALSE])dnl
128_AM_SUBST_NOTMAKE([$1_TRUE])dnl
129_AM_SUBST_NOTMAKE([$1_FALSE])dnl
130m4_define([_AM_COND_VALUE_$1], [$2])dnl
131if $2; then
132 $1_TRUE=
133 $1_FALSE='#'
134else
135 $1_TRUE='#'
136 $1_FALSE=
137fi
138AC_CONFIG_COMMANDS_PRE(
139[if test -z "${$1_TRUE}" && test -z "${$1_FALSE}"; then
140 AC_MSG_ERROR([[conditional "$1" was never defined.
141Usually this means the macro was only invoked conditionally.]])
142fi])])
143
144# Copyright (C) 1999-2020 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
151# There are a few dirty hacks below to avoid letting 'AC_PROG_CC' be
152# written in clear, in which case automake, when reading aclocal.m4,
153# will think it sees a *use*, and therefore will trigger all it's
154# C support machinery. Also note that it means that autoscan, seeing
155# CC etc. in the Makefile, will ask for an AC_PROG_CC use...
156
157
158# _AM_DEPENDENCIES(NAME)
159# ----------------------
160# See how the compiler implements dependency checking.
161# NAME is "CC", "CXX", "OBJC", "OBJCXX", "UPC", or "GJC".
162# We try a few techniques and use that to set a single cache variable.
163#
164# We don't AC_REQUIRE the corresponding AC_PROG_CC since the latter was
165# modified to invoke _AM_DEPENDENCIES(CC); we would have a circular
166# dependency, and given that the user is not expected to run this macro,
167# just rely on AC_PROG_CC.
168AC_DEFUN([_AM_DEPENDENCIES],
169[AC_REQUIRE([AM_SET_DEPDIR])dnl
170AC_REQUIRE([AM_OUTPUT_DEPENDENCY_COMMANDS])dnl
171AC_REQUIRE([AM_MAKE_INCLUDE])dnl
172AC_REQUIRE([AM_DEP_TRACK])dnl
173
174m4_if([$1], [CC], [depcc="$CC" am_compiler_list=],
175 [$1], [CXX], [depcc="$CXX" am_compiler_list=],
176 [$1], [OBJC], [depcc="$OBJC" am_compiler_list='gcc3 gcc'],
177 [$1], [OBJCXX], [depcc="$OBJCXX" am_compiler_list='gcc3 gcc'],
178 [$1], [UPC], [depcc="$UPC" am_compiler_list=],
179 [$1], [GCJ], [depcc="$GCJ" am_compiler_list='gcc3 gcc'],
180 [depcc="$$1" am_compiler_list=])
181
182AC_CACHE_CHECK([dependency style of $depcc],
183 [am_cv_$1_dependencies_compiler_type],
184[if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
185 # We make a subdir and do the tests there. Otherwise we can end up
186 # making bogus files that we don't know about and never remove. For
187 # instance it was reported that on HP-UX the gcc test will end up
188 # making a dummy file named 'D' -- because '-MD' means "put the output
189 # in D".
190 rm -rf conftest.dir
191 mkdir conftest.dir
192 # Copy depcomp to subdir because otherwise we won't find it if we're
193 # using a relative directory.
194 cp "$am_depcomp" conftest.dir
195 cd conftest.dir
196 # We will build objects and dependencies in a subdirectory because
197 # it helps to detect inapplicable dependency modes. For instance
198 # both Tru64's cc and ICC support -MD to output dependencies as a
199 # side effect of compilation, but ICC will put the dependencies in
200 # the current directory while Tru64 will put them in the object
201 # directory.
202 mkdir sub
203
204 am_cv_$1_dependencies_compiler_type=none
205 if test "$am_compiler_list" = ""; then
206 am_compiler_list=`sed -n ['s/^#*\([a-zA-Z0-9]*\))$/\1/p'] < ./depcomp`
207 fi
208 am__universal=false
209 m4_case([$1], [CC],
210 [case " $depcc " in #(
211 *\ -arch\ *\ -arch\ *) am__universal=true ;;
212 esac],
213 [CXX],
214 [case " $depcc " in #(
215 *\ -arch\ *\ -arch\ *) am__universal=true ;;
216 esac])
217
218 for depmode in $am_compiler_list; do
219 # Setup a source with many dependencies, because some compilers
220 # like to wrap large dependency lists on column 80 (with \), and
221 # we should not choose a depcomp mode which is confused by this.
222 #
223 # We need to recreate these files for each test, as the compiler may
224 # overwrite some of them when testing with obscure command lines.
225 # This happens at least with the AIX C compiler.
226 : > sub/conftest.c
227 for i in 1 2 3 4 5 6; do
228 echo '#include "conftst'$i'.h"' >> sub/conftest.c
229 # Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
230 # Solaris 10 /bin/sh.
231 echo '/* dummy */' > sub/conftst$i.h
232 done
233 echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
234
235 # We check with '-c' and '-o' for the sake of the "dashmstdout"
236 # mode. It turns out that the SunPro C++ compiler does not properly
237 # handle '-M -o', and we need to detect this. Also, some Intel
238 # versions had trouble with output in subdirs.
239 am__obj=sub/conftest.${OBJEXT-o}
240 am__minus_obj="-o $am__obj"
241 case $depmode in
242 gcc)
243 # This depmode causes a compiler race in universal mode.
244 test "$am__universal" = false || continue
245 ;;
246 nosideeffect)
247 # After this tag, mechanisms are not by side-effect, so they'll
248 # only be used when explicitly requested.
249 if test "x$enable_dependency_tracking" = xyes; then
250 continue
251 else
252 break
253 fi
254 ;;
255 msvc7 | msvc7msys | msvisualcpp | msvcmsys)
256 # This compiler won't grok '-c -o', but also, the minuso test has
257 # not run yet. These depmodes are late enough in the game, and
258 # so weak that their functioning should not be impacted.
259 am__obj=conftest.${OBJEXT-o}
260 am__minus_obj=
261 ;;
262 none) break ;;
263 esac
264 if depmode=$depmode \
265 source=sub/conftest.c object=$am__obj \
266 depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
267 $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
268 >/dev/null 2>conftest.err &&
269 grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
270 grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
271 grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
272 ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
273 # icc doesn't choke on unknown options, it will just issue warnings
274 # or remarks (even with -Werror). So we grep stderr for any message
275 # that says an option was ignored or not supported.
276 # When given -MP, icc 7.0 and 7.1 complain thusly:
277 # icc: Command line warning: ignoring option '-M'; no argument required
278 # The diagnosis changed in icc 8.0:
279 # icc: Command line remark: option '-MP' not supported
280 if (grep 'ignoring option' conftest.err ||
281 grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
282 am_cv_$1_dependencies_compiler_type=$depmode
283 break
284 fi
285 fi
286 done
287
288 cd ..
289 rm -rf conftest.dir
290else
291 am_cv_$1_dependencies_compiler_type=none
292fi
293])
294AC_SUBST([$1DEPMODE], [depmode=$am_cv_$1_dependencies_compiler_type])
295AM_CONDITIONAL([am__fastdep$1], [
296 test "x$enable_dependency_tracking" != xno \
297 && test "$am_cv_$1_dependencies_compiler_type" = gcc3])
298])
299
300
301# AM_SET_DEPDIR
302# -------------
303# Choose a directory name for dependency files.
304# This macro is AC_REQUIREd in _AM_DEPENDENCIES.
305AC_DEFUN([AM_SET_DEPDIR],
306[AC_REQUIRE([AM_SET_LEADING_DOT])dnl
307AC_SUBST([DEPDIR], ["${am__leading_dot}deps"])dnl
308])
309
310
311# AM_DEP_TRACK
312# ------------
313AC_DEFUN([AM_DEP_TRACK],
314[AC_ARG_ENABLE([dependency-tracking], [dnl
315AS_HELP_STRING(
316 [--enable-dependency-tracking],
317 [do not reject slow dependency extractors])
318AS_HELP_STRING(
319 [--disable-dependency-tracking],
320 [speeds up one-time build])])
321if test "x$enable_dependency_tracking" != xno; then
322 am_depcomp="$ac_aux_dir/depcomp"
323 AMDEPBACKSLASH='\'
324 am__nodep='_no'
325fi
326AM_CONDITIONAL([AMDEP], [test "x$enable_dependency_tracking" != xno])
327AC_SUBST([AMDEPBACKSLASH])dnl
328_AM_SUBST_NOTMAKE([AMDEPBACKSLASH])dnl
329AC_SUBST([am__nodep])dnl
330_AM_SUBST_NOTMAKE([am__nodep])dnl
331])
332
333# Generate code to set up dependency tracking. -*- Autoconf -*-
334
335# Copyright (C) 1999-2020 Free Software Foundation, Inc.
336#
337# This file is free software; the Free Software Foundation
338# gives unlimited permission to copy and/or distribute it,
339# with or without modifications, as long as this notice is preserved.
340
341# _AM_OUTPUT_DEPENDENCY_COMMANDS
342# ------------------------------
343AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
344[{
345 # Older Autoconf quotes --file arguments for eval, but not when files
346 # are listed without --file. Let's play safe and only enable the eval
347 # if we detect the quoting.
348 # TODO: see whether this extra hack can be removed once we start
349 # requiring Autoconf 2.70 or later.
350 AS_CASE([$CONFIG_FILES],
351 [*\'*], [eval set x "$CONFIG_FILES"],
352 [*], [set x $CONFIG_FILES])
353 shift
354 # Used to flag and report bootstrapping failures.
355 am_rc=0
356 for am_mf
357 do
358 # Strip MF so we end up with the name of the file.
359 am_mf=`AS_ECHO(["$am_mf"]) | sed -e 's/:.*$//'`
360 # Check whether this is an Automake generated Makefile which includes
361 # dependency-tracking related rules and includes.
362 # Grep'ing the whole file directly is not great: AIX grep has a line
363 # limit of 2048, but all sed's we know have understand at least 4000.
364 sed -n 's,^am--depfiles:.*,X,p' "$am_mf" | grep X >/dev/null 2>&1 \
365 || continue
366 am_dirpart=`AS_DIRNAME(["$am_mf"])`
367 am_filepart=`AS_BASENAME(["$am_mf"])`
368 AM_RUN_LOG([cd "$am_dirpart" \
369 && sed -e '/# am--include-marker/d' "$am_filepart" \
370 | $MAKE -f - am--depfiles]) || am_rc=$?
371 done
372 if test $am_rc -ne 0; then
373 AC_MSG_FAILURE([Something went wrong bootstrapping makefile fragments
374 for automatic dependency tracking. If GNU make was not used, consider
375 re-running the configure script with MAKE="gmake" (or whatever is
376 necessary). You can also try re-running configure with the
377 '--disable-dependency-tracking' option to at least be able to build
378 the package (albeit without support for automatic dependency tracking).])
379 fi
380 AS_UNSET([am_dirpart])
381 AS_UNSET([am_filepart])
382 AS_UNSET([am_mf])
383 AS_UNSET([am_rc])
384 rm -f conftest-deps.mk
385}
386])# _AM_OUTPUT_DEPENDENCY_COMMANDS
387
388
389# AM_OUTPUT_DEPENDENCY_COMMANDS
390# -----------------------------
391# This macro should only be invoked once -- use via AC_REQUIRE.
392#
393# This code is only required when automatic dependency tracking is enabled.
394# This creates each '.Po' and '.Plo' makefile fragment that we'll need in
395# order to bootstrap the dependency handling code.
396AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
397[AC_CONFIG_COMMANDS([depfiles],
398 [test x"$AMDEP_TRUE" != x"" || _AM_OUTPUT_DEPENDENCY_COMMANDS],
399 [AMDEP_TRUE="$AMDEP_TRUE" MAKE="${MAKE-make}"])])
400
401# Do all the work for Automake. -*- Autoconf -*-
402
403# Copyright (C) 1996-2020 Free Software Foundation, Inc.
404#
405# This file is free software; the Free Software Foundation
406# gives unlimited permission to copy and/or distribute it,
407# with or without modifications, as long as this notice is preserved.
408
409# This macro actually does too much. Some checks are only needed if
410# your package does certain things. But this isn't really a big deal.
411
412dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
413m4_define([AC_PROG_CC],
414m4_defn([AC_PROG_CC])
415[_AM_PROG_CC_C_O
416])
417
418# AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
419# AM_INIT_AUTOMAKE([OPTIONS])
420# -----------------------------------------------
421# The call with PACKAGE and VERSION arguments is the old style
422# call (pre autoconf-2.50), which is being phased out. PACKAGE
423# and VERSION should now be passed to AC_INIT and removed from
424# the call to AM_INIT_AUTOMAKE.
425# We support both call styles for the transition. After
426# the next Automake release, Autoconf can make the AC_INIT
427# arguments mandatory, and then we can depend on a new Autoconf
428# release and drop the old call support.
429AC_DEFUN([AM_INIT_AUTOMAKE],
430[AC_PREREQ([2.65])dnl
431dnl Autoconf wants to disallow AM_ names. We explicitly allow
432dnl the ones we care about.
433m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
434AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
435AC_REQUIRE([AC_PROG_INSTALL])dnl
436if test "`cd $srcdir && pwd`" != "`pwd`"; then
437 # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
438 # is not polluted with repeated "-I."
439 AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
440 # test to see if srcdir already configured
441 if test -f $srcdir/config.status; then
442 AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
443 fi
444fi
445
446# test whether we have cygpath
447if test -z "$CYGPATH_W"; then
448 if (cygpath --version) >/dev/null 2>/dev/null; then
449 CYGPATH_W='cygpath -w'
450 else
451 CYGPATH_W=echo
452 fi
453fi
454AC_SUBST([CYGPATH_W])
455
456# Define the identity of the package.
457dnl Distinguish between old-style and new-style calls.
458m4_ifval([$2],
459[AC_DIAGNOSE([obsolete],
460 [$0: two- and three-arguments forms are deprecated.])
461m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
462 AC_SUBST([PACKAGE], [$1])dnl
463 AC_SUBST([VERSION], [$2])],
464[_AM_SET_OPTIONS([$1])dnl
465dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
466m4_if(
467 m4_ifdef([AC_PACKAGE_NAME], [ok]):m4_ifdef([AC_PACKAGE_VERSION], [ok]),
468 [ok:ok],,
469 [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
470 AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
471 AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
472
473_AM_IF_OPTION([no-define],,
474[AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
475 AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
476
477# Some tools Automake needs.
478AC_REQUIRE([AM_SANITY_CHECK])dnl
479AC_REQUIRE([AC_ARG_PROGRAM])dnl
480AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
481AM_MISSING_PROG([AUTOCONF], [autoconf])
482AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
483AM_MISSING_PROG([AUTOHEADER], [autoheader])
484AM_MISSING_PROG([MAKEINFO], [makeinfo])
485AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
486AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
487AC_REQUIRE([AC_PROG_MKDIR_P])dnl
488# For better backward compatibility. To be removed once Automake 1.9.x
489# dies out for good. For more background, see:
490# <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
491# <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
492AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
493# We need awk for the "check" target (and possibly the TAP driver). The
494# system "awk" is bad on some platforms.
495AC_REQUIRE([AC_PROG_AWK])dnl
496AC_REQUIRE([AC_PROG_MAKE_SET])dnl
497AC_REQUIRE([AM_SET_LEADING_DOT])dnl
498_AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
499 [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
500 [_AM_PROG_TAR([v7])])])
501_AM_IF_OPTION([no-dependencies],,
502[AC_PROVIDE_IFELSE([AC_PROG_CC],
503 [_AM_DEPENDENCIES([CC])],
504 [m4_define([AC_PROG_CC],
505 m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
506AC_PROVIDE_IFELSE([AC_PROG_CXX],
507 [_AM_DEPENDENCIES([CXX])],
508 [m4_define([AC_PROG_CXX],
509 m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
510AC_PROVIDE_IFELSE([AC_PROG_OBJC],
511 [_AM_DEPENDENCIES([OBJC])],
512 [m4_define([AC_PROG_OBJC],
513 m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
514AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
515 [_AM_DEPENDENCIES([OBJCXX])],
516 [m4_define([AC_PROG_OBJCXX],
517 m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
518])
519AC_REQUIRE([AM_SILENT_RULES])dnl
520dnl The testsuite driver may need to know about EXEEXT, so add the
521dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen. This
522dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
523AC_CONFIG_COMMANDS_PRE(dnl
524[m4_provide_if([_AM_COMPILER_EXEEXT],
525 [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
526
527# POSIX will say in a future version that running "rm -f" with no argument
528# is OK; and we want to be able to make that assumption in our Makefile
529# recipes. So use an aggressive probe to check that the usage we want is
530# actually supported "in the wild" to an acceptable degree.
531# See automake bug#10828.
532# To make any issue more visible, cause the running configure to be aborted
533# by default if the 'rm' program in use doesn't match our expectations; the
534# user can still override this though.
535if rm -f && rm -fr && rm -rf; then : OK; else
536 cat >&2 <<'END'
537Oops!
538
539Your 'rm' program seems unable to run without file operands specified
540on the command line, even when the '-f' option is present. This is contrary
541to the behaviour of most rm programs out there, and not conforming with
542the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
543
544Please tell bug-automake@gnu.org about your system, including the value
545of your $PATH and any error possibly output before this message. This
546can help us improve future automake versions.
547
548END
549 if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
550 echo 'Configuration will proceed anyway, since you have set the' >&2
551 echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
552 echo >&2
553 else
554 cat >&2 <<'END'
555Aborting the configuration process, to ensure you take notice of the issue.
556
557You can download and install GNU coreutils to get an 'rm' implementation
558that behaves properly: <https://www.gnu.org/software/coreutils/>.
559
560If you want to complete the configuration process using your problematic
561'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
562to "yes", and re-run configure.
563
564END
565 AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
566 fi
567fi
568dnl The trailing newline in this macro's definition is deliberate, for
569dnl backward compatibility and to allow trailing 'dnl'-style comments
570dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
571])
572
573dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion. Do not
574dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
575dnl mangled by Autoconf and run in a shell conditional statement.
576m4_define([_AC_COMPILER_EXEEXT],
577m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
578
579# When config.status generates a header, we must update the stamp-h file.
580# This file resides in the same directory as the config header
581# that is generated. The stamp files are numbered to have different names.
582
583# Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
584# loop where config.status creates the headers, so we can generate
585# our stamp files there.
586AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
587[# Compute $1's index in $config_headers.
588_am_arg=$1
589_am_stamp_count=1
590for _am_header in $config_headers :; do
591 case $_am_header in
592 $_am_arg | $_am_arg:* )
593 break ;;
594 * )
595 _am_stamp_count=`expr $_am_stamp_count + 1` ;;
596 esac
597done
598echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
599
600# Copyright (C) 2001-2020 Free Software Foundation, Inc.
601#
602# This file is free software; the Free Software Foundation
603# gives unlimited permission to copy and/or distribute it,
604# with or without modifications, as long as this notice is preserved.
605
606# AM_PROG_INSTALL_SH
607# ------------------
608# Define $install_sh.
609AC_DEFUN([AM_PROG_INSTALL_SH],
610[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
611if test x"${install_sh+set}" != xset; then
612 case $am_aux_dir in
613 *\ * | *\ *)
614 install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
615 *)
616 install_sh="\${SHELL} $am_aux_dir/install-sh"
617 esac
618fi
619AC_SUBST([install_sh])])
620
621# Copyright (C) 2003-2020 Free Software Foundation, Inc.
622#
623# This file is free software; the Free Software Foundation
624# gives unlimited permission to copy and/or distribute it,
625# with or without modifications, as long as this notice is preserved.
626
627# Check whether the underlying file-system supports filenames
628# with a leading dot. For instance MS-DOS doesn't.
629AC_DEFUN([AM_SET_LEADING_DOT],
630[rm -rf .tst 2>/dev/null
631mkdir .tst 2>/dev/null
632if test -d .tst; then
633 am__leading_dot=.
634else
635 am__leading_dot=_
636fi
637rmdir .tst 2>/dev/null
638AC_SUBST([am__leading_dot])])
639
640# Add --enable-maintainer-mode option to configure. -*- Autoconf -*-
641# From Jim Meyering
642
643# Copyright (C) 1996-2020 Free Software Foundation, Inc.
644#
645# This file is free software; the Free Software Foundation
646# gives unlimited permission to copy and/or distribute it,
647# with or without modifications, as long as this notice is preserved.
648
649# AM_MAINTAINER_MODE([DEFAULT-MODE])
650# ----------------------------------
651# Control maintainer-specific portions of Makefiles.
652# Default is to disable them, unless 'enable' is passed literally.
653# For symmetry, 'disable' may be passed as well. Anyway, the user
654# can override the default with the --enable/--disable switch.
655AC_DEFUN([AM_MAINTAINER_MODE],
656[m4_case(m4_default([$1], [disable]),
657 [enable], [m4_define([am_maintainer_other], [disable])],
658 [disable], [m4_define([am_maintainer_other], [enable])],
659 [m4_define([am_maintainer_other], [enable])
660 m4_warn([syntax], [unexpected argument to AM@&t@_MAINTAINER_MODE: $1])])
661AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
662 dnl maintainer-mode's default is 'disable' unless 'enable' is passed
663 AC_ARG_ENABLE([maintainer-mode],
664 [AS_HELP_STRING([--]am_maintainer_other[-maintainer-mode],
665 am_maintainer_other[ make rules and dependencies not useful
666 (and sometimes confusing) to the casual installer])],
667 [USE_MAINTAINER_MODE=$enableval],
668 [USE_MAINTAINER_MODE=]m4_if(am_maintainer_other, [enable], [no], [yes]))
669 AC_MSG_RESULT([$USE_MAINTAINER_MODE])
670 AM_CONDITIONAL([MAINTAINER_MODE], [test $USE_MAINTAINER_MODE = yes])
671 MAINT=$MAINTAINER_MODE_TRUE
672 AC_SUBST([MAINT])dnl
673]
674)
675
676# Check to see how 'make' treats includes. -*- Autoconf -*-
677
678# Copyright (C) 2001-2020 Free Software Foundation, Inc.
679#
680# This file is free software; the Free Software Foundation
681# gives unlimited permission to copy and/or distribute it,
682# with or without modifications, as long as this notice is preserved.
683
684# AM_MAKE_INCLUDE()
685# -----------------
686# Check whether make has an 'include' directive that can support all
687# the idioms we need for our automatic dependency tracking code.
688AC_DEFUN([AM_MAKE_INCLUDE],
689[AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
690cat > confinc.mk << 'END'
691am__doit:
692 @echo this is the am__doit target >confinc.out
693.PHONY: am__doit
694END
695am__include="#"
696am__quote=
697# BSD make does it like this.
698echo '.include "confinc.mk" # ignored' > confmf.BSD
699# Other make implementations (GNU, Solaris 10, AIX) do it like this.
700echo 'include confinc.mk # ignored' > confmf.GNU
701_am_result=no
702for s in GNU BSD; do
703 AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
704 AS_CASE([$?:`cat confinc.out 2>/dev/null`],
705 ['0:this is the am__doit target'],
706 [AS_CASE([$s],
707 [BSD], [am__include='.include' am__quote='"'],
708 [am__include='include' am__quote=''])])
709 if test "$am__include" != "#"; then
710 _am_result="yes ($s style)"
711 break
712 fi
713done
714rm -f confinc.* confmf.*
715AC_MSG_RESULT([${_am_result}])
716AC_SUBST([am__include])])
717AC_SUBST([am__quote])])
718
719# Fake the existence of programs that GNU maintainers use. -*- Autoconf -*-
720
721# Copyright (C) 1997-2020 Free Software Foundation, Inc.
722#
723# This file is free software; the Free Software Foundation
724# gives unlimited permission to copy and/or distribute it,
725# with or without modifications, as long as this notice is preserved.
726
727# AM_MISSING_PROG(NAME, PROGRAM)
728# ------------------------------
729AC_DEFUN([AM_MISSING_PROG],
730[AC_REQUIRE([AM_MISSING_HAS_RUN])
731$1=${$1-"${am_missing_run}$2"}
732AC_SUBST($1)])
733
734# AM_MISSING_HAS_RUN
735# ------------------
736# Define MISSING if not defined so far and test if it is modern enough.
737# If it is, set am_missing_run to use it, otherwise, to nothing.
738AC_DEFUN([AM_MISSING_HAS_RUN],
739[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
740AC_REQUIRE_AUX_FILE([missing])dnl
741if test x"${MISSING+set}" != xset; then
742 case $am_aux_dir in
743 *\ * | *\ *)
744 MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
745 *)
746 MISSING="\${SHELL} $am_aux_dir/missing" ;;
747 esac
748fi
749# Use eval to expand $SHELL
750if eval "$MISSING --is-lightweight"; then
751 am_missing_run="$MISSING "
752else
753 am_missing_run=
754 AC_MSG_WARN(['missing' script is too old or missing])
755fi
756])
757
758# Helper functions for option handling. -*- Autoconf -*-
759
760# Copyright (C) 2001-2020 Free Software Foundation, Inc.
761#
762# This file is free software; the Free Software Foundation
763# gives unlimited permission to copy and/or distribute it,
764# with or without modifications, as long as this notice is preserved.
765
766# _AM_MANGLE_OPTION(NAME)
767# -----------------------
768AC_DEFUN([_AM_MANGLE_OPTION],
769[[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
770
771# _AM_SET_OPTION(NAME)
772# --------------------
773# Set option NAME. Presently that only means defining a flag for this option.
774AC_DEFUN([_AM_SET_OPTION],
775[m4_define(_AM_MANGLE_OPTION([$1]), [1])])
776
777# _AM_SET_OPTIONS(OPTIONS)
778# ------------------------
779# OPTIONS is a space-separated list of Automake options.
780AC_DEFUN([_AM_SET_OPTIONS],
781[m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
782
783# _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
784# -------------------------------------------
785# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
786AC_DEFUN([_AM_IF_OPTION],
787[m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
788
789# Copyright (C) 1999-2020 Free Software Foundation, Inc.
790#
791# This file is free software; the Free Software Foundation
792# gives unlimited permission to copy and/or distribute it,
793# with or without modifications, as long as this notice is preserved.
794
795# _AM_PROG_CC_C_O
796# ---------------
797# Like AC_PROG_CC_C_O, but changed for automake. We rewrite AC_PROG_CC
798# to automatically call this.
799AC_DEFUN([_AM_PROG_CC_C_O],
800[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
801AC_REQUIRE_AUX_FILE([compile])dnl
802AC_LANG_PUSH([C])dnl
803AC_CACHE_CHECK(
804 [whether $CC understands -c and -o together],
805 [am_cv_prog_cc_c_o],
806 [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
807 # Make sure it works both with $CC and with simple cc.
808 # Following AC_PROG_CC_C_O, we do the test twice because some
809 # compilers refuse to overwrite an existing .o file with -o,
810 # though they will create one.
811 am_cv_prog_cc_c_o=yes
812 for am_i in 1 2; do
813 if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
814 && test -f conftest2.$ac_objext; then
815 : OK
816 else
817 am_cv_prog_cc_c_o=no
818 break
819 fi
820 done
821 rm -f core conftest*
822 unset am_i])
823if test "$am_cv_prog_cc_c_o" != yes; then
824 # Losing compiler, so override with the script.
825 # FIXME: It is wrong to rewrite CC.
826 # But if we don't then we get into trouble of one sort or another.
827 # A longer-term fix would be to have automake use am__CC in this case,
828 # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
829 CC="$am_aux_dir/compile $CC"
830fi
831AC_LANG_POP([C])])
832
833# For backward compatibility.
834AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
835
836# Copyright (C) 2001-2020 Free Software Foundation, Inc.
837#
838# This file is free software; the Free Software Foundation
839# gives unlimited permission to copy and/or distribute it,
840# with or without modifications, as long as this notice is preserved.
841
842# AM_RUN_LOG(COMMAND)
843# -------------------
844# Run COMMAND, save the exit status in ac_status, and log it.
845# (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
846AC_DEFUN([AM_RUN_LOG],
847[{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
848 ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
849 ac_status=$?
850 echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
851 (exit $ac_status); }])
852
853# Check to make sure that the build environment is sane. -*- Autoconf -*-
854
855# Copyright (C) 1996-2020 Free Software Foundation, Inc.
856#
857# This file is free software; the Free Software Foundation
858# gives unlimited permission to copy and/or distribute it,
859# with or without modifications, as long as this notice is preserved.
860
861# AM_SANITY_CHECK
862# ---------------
863AC_DEFUN([AM_SANITY_CHECK],
864[AC_MSG_CHECKING([whether build environment is sane])
865# Reject unsafe characters in $srcdir or the absolute working directory
866# name. Accept space and tab only in the latter.
867am_lf='
868'
869case `pwd` in
870 *[[\\\"\#\$\&\'\`$am_lf]]*)
871 AC_MSG_ERROR([unsafe absolute working directory name]);;
872esac
873case $srcdir in
874 *[[\\\"\#\$\&\'\`$am_lf\ \ ]]*)
875 AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
876esac
877
878# Do 'set' in a subshell so we don't clobber the current shell's
879# arguments. Must try -L first in case configure is actually a
880# symlink; some systems play weird games with the mod time of symlinks
881# (eg FreeBSD returns the mod time of the symlink's containing
882# directory).
883if (
884 am_has_slept=no
885 for am_try in 1 2; do
886 echo "timestamp, slept: $am_has_slept" > conftest.file
887 set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
888 if test "$[*]" = "X"; then
889 # -L didn't work.
890 set X `ls -t "$srcdir/configure" conftest.file`
891 fi
892 if test "$[*]" != "X $srcdir/configure conftest.file" \
893 && test "$[*]" != "X conftest.file $srcdir/configure"; then
894
895 # If neither matched, then we have a broken ls. This can happen
896 # if, for instance, CONFIG_SHELL is bash and it inherits a
897 # broken ls alias from the environment. This has actually
898 # happened. Such a system could not be considered "sane".
899 AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken
900 alias in your environment])
901 fi
902 if test "$[2]" = conftest.file || test $am_try -eq 2; then
903 break
904 fi
905 # Just in case.
906 sleep 1
907 am_has_slept=yes
908 done
909 test "$[2]" = conftest.file
910 )
911then
912 # Ok.
913 :
914else
915 AC_MSG_ERROR([newly created file is older than distributed files!
916Check your system clock])
917fi
918AC_MSG_RESULT([yes])
919# If we didn't sleep, we still need to ensure time stamps of config.status and
920# generated files are strictly newer.
921am_sleep_pid=
922if grep 'slept: no' conftest.file >/dev/null 2>&1; then
923 ( sleep 1 ) &
924 am_sleep_pid=$!
925fi
926AC_CONFIG_COMMANDS_PRE(
927 [AC_MSG_CHECKING([that generated files are newer than configure])
928 if test -n "$am_sleep_pid"; then
929 # Hide warnings about reused PIDs.
930 wait $am_sleep_pid 2>/dev/null
931 fi
932 AC_MSG_RESULT([done])])
933rm -f conftest.file
934])
935
936# Copyright (C) 2009-2020 Free Software Foundation, Inc.
937#
938# This file is free software; the Free Software Foundation
939# gives unlimited permission to copy and/or distribute it,
940# with or without modifications, as long as this notice is preserved.
941
942# AM_SILENT_RULES([DEFAULT])
943# --------------------------
944# Enable less verbose build rules; with the default set to DEFAULT
945# ("yes" being less verbose, "no" or empty being verbose).
946AC_DEFUN([AM_SILENT_RULES],
947[AC_ARG_ENABLE([silent-rules], [dnl
948AS_HELP_STRING(
949 [--enable-silent-rules],
950 [less verbose build output (undo: "make V=1")])
951AS_HELP_STRING(
952 [--disable-silent-rules],
953 [verbose build output (undo: "make V=0")])dnl
954])
955case $enable_silent_rules in @%:@ (((
956 yes) AM_DEFAULT_VERBOSITY=0;;
957 no) AM_DEFAULT_VERBOSITY=1;;
958 *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
959esac
960dnl
961dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
962dnl do not support nested variable expansions.
963dnl See automake bug#9928 and bug#10237.
964am_make=${MAKE-make}
965AC_CACHE_CHECK([whether $am_make supports nested variables],
966 [am_cv_make_support_nested_variables],
967 [if AS_ECHO([['TRUE=$(BAR$(V))
968BAR0=false
969BAR1=true
970V=1
971am__doit:
972 @$(TRUE)
973.PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
974 am_cv_make_support_nested_variables=yes
975else
976 am_cv_make_support_nested_variables=no
977fi])
978if test $am_cv_make_support_nested_variables = yes; then
979 dnl Using '$V' instead of '$(V)' breaks IRIX make.
980 AM_V='$(V)'
981 AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
982else
983 AM_V=$AM_DEFAULT_VERBOSITY
984 AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
985fi
986AC_SUBST([AM_V])dnl
987AM_SUBST_NOTMAKE([AM_V])dnl
988AC_SUBST([AM_DEFAULT_V])dnl
989AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
990AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
991AM_BACKSLASH='\'
992AC_SUBST([AM_BACKSLASH])dnl
993_AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
994])
995
996# Copyright (C) 2001-2020 Free Software Foundation, Inc.
997#
998# This file is free software; the Free Software Foundation
999# gives unlimited permission to copy and/or distribute it,
1000# with or without modifications, as long as this notice is preserved.
1001
1002# AM_PROG_INSTALL_STRIP
1003# ---------------------
1004# One issue with vendor 'install' (even GNU) is that you can't
1005# specify the program used to strip binaries. This is especially
1006# annoying in cross-compiling environments, where the build's strip
1007# is unlikely to handle the host's binaries.
1008# Fortunately install-sh will honor a STRIPPROG variable, so we
1009# always use install-sh in "make install-strip", and initialize
1010# STRIPPROG with the value of the STRIP variable (set by the user).
1011AC_DEFUN([AM_PROG_INSTALL_STRIP],
1012[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
1013# Installed binaries are usually stripped using 'strip' when the user
1014# run "make install-strip". However 'strip' might not be the right
1015# tool to use in cross-compilation environments, therefore Automake
1016# will honor the 'STRIP' environment variable to overrule this program.
1017dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
1018if test "$cross_compiling" != no; then
1019 AC_CHECK_TOOL([STRIP], [strip], :)
1020fi
1021INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
1022AC_SUBST([INSTALL_STRIP_PROGRAM])])
1023
1024# Copyright (C) 2006-2020 Free Software Foundation, Inc.
1025#
1026# This file is free software; the Free Software Foundation
1027# gives unlimited permission to copy and/or distribute it,
1028# with or without modifications, as long as this notice is preserved.
1029
1030# _AM_SUBST_NOTMAKE(VARIABLE)
1031# ---------------------------
1032# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
1033# This macro is traced by Automake.
1034AC_DEFUN([_AM_SUBST_NOTMAKE])
1035
1036# AM_SUBST_NOTMAKE(VARIABLE)
1037# --------------------------
1038# Public sister of _AM_SUBST_NOTMAKE.
1039AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
1040
1041# Check how to create a tarball. -*- Autoconf -*-
1042
1043# Copyright (C) 2004-2020 Free Software Foundation, Inc.
1044#
1045# This file is free software; the Free Software Foundation
1046# gives unlimited permission to copy and/or distribute it,
1047# with or without modifications, as long as this notice is preserved.
1048
1049# _AM_PROG_TAR(FORMAT)
1050# --------------------
1051# Check how to create a tarball in format FORMAT.
1052# FORMAT should be one of 'v7', 'ustar', or 'pax'.
1053#
1054# Substitute a variable $(am__tar) that is a command
1055# writing to stdout a FORMAT-tarball containing the directory
1056# $tardir.
1057# tardir=directory && $(am__tar) > result.tar
1058#
1059# Substitute a variable $(am__untar) that extract such
1060# a tarball read from stdin.
1061# $(am__untar) < result.tar
1062#
1063AC_DEFUN([_AM_PROG_TAR],
1064[# Always define AMTAR for backward compatibility. Yes, it's still used
1065# in the wild :-( We should find a proper way to deprecate it ...
1066AC_SUBST([AMTAR], ['$${TAR-tar}'])
1067
1068# We'll loop over all known methods to create a tar archive until one works.
1069_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
1070
1071m4_if([$1], [v7],
1072 [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
1073
1074 [m4_case([$1],
1075 [ustar],
1076 [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
1077 # There is notably a 21 bits limit for the UID and the GID. In fact,
1078 # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
1079 # and bug#13588).
1080 am_max_uid=2097151 # 2^21 - 1
1081 am_max_gid=$am_max_uid
1082 # The $UID and $GID variables are not portable, so we need to resort
1083 # to the POSIX-mandated id(1) utility. Errors in the 'id' calls
1084 # below are definitely unexpected, so allow the users to see them
1085 # (that is, avoid stderr redirection).
1086 am_uid=`id -u || echo unknown`
1087 am_gid=`id -g || echo unknown`
1088 AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
1089 if test $am_uid -le $am_max_uid; then
1090 AC_MSG_RESULT([yes])
1091 else
1092 AC_MSG_RESULT([no])
1093 _am_tools=none
1094 fi
1095 AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
1096 if test $am_gid -le $am_max_gid; then
1097 AC_MSG_RESULT([yes])
1098 else
1099 AC_MSG_RESULT([no])
1100 _am_tools=none
1101 fi],
1102
1103 [pax],
1104 [],
1105
1106 [m4_fatal([Unknown tar format])])
1107
1108 AC_MSG_CHECKING([how to create a $1 tar archive])
1109
1110 # Go ahead even if we have the value already cached. We do so because we
1111 # need to set the values for the 'am__tar' and 'am__untar' variables.
1112 _am_tools=${am_cv_prog_tar_$1-$_am_tools}
1113
1114 for _am_tool in $_am_tools; do
1115 case $_am_tool in
1116 gnutar)
1117 for _am_tar in tar gnutar gtar; do
1118 AM_RUN_LOG([$_am_tar --version]) && break
1119 done
1120 am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
1121 am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
1122 am__untar="$_am_tar -xf -"
1123 ;;
1124 plaintar)
1125 # Must skip GNU tar: if it does not support --format= it doesn't create
1126 # ustar tarball either.
1127 (tar --version) >/dev/null 2>&1 && continue
1128 am__tar='tar chf - "$$tardir"'
1129 am__tar_='tar chf - "$tardir"'
1130 am__untar='tar xf -'
1131 ;;
1132 pax)
1133 am__tar='pax -L -x $1 -w "$$tardir"'
1134 am__tar_='pax -L -x $1 -w "$tardir"'
1135 am__untar='pax -r'
1136 ;;
1137 cpio)
1138 am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
1139 am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
1140 am__untar='cpio -i -H $1 -d'
1141 ;;
1142 none)
1143 am__tar=false
1144 am__tar_=false
1145 am__untar=false
1146 ;;
1147 esac
1148
1149 # If the value was cached, stop now. We just wanted to have am__tar
1150 # and am__untar set.
1151 test -n "${am_cv_prog_tar_$1}" && break
1152
1153 # tar/untar a dummy directory, and stop if the command works.
1154 rm -rf conftest.dir
1155 mkdir conftest.dir
1156 echo GrepMe > conftest.dir/file
1157 AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
1158 rm -rf conftest.dir
1159 if test -s conftest.tar; then
1160 AM_RUN_LOG([$am__untar <conftest.tar])
1161 AM_RUN_LOG([cat conftest.dir/file])
1162 grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
1163 fi
1164 done
1165 rm -rf conftest.dir
1166
1167 AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
1168 AC_MSG_RESULT([$am_cv_prog_tar_$1])])
1169
1170AC_SUBST([am__tar])
1171AC_SUBST([am__untar])
1172]) # _AM_PROG_TAR
1173
1174m4_include([m4/add_cflags.m4])
1175m4_include([m4/libtool.m4])
1176m4_include([m4/ltoptions.m4])
1177m4_include([m4/ltsugar.m4])
1178m4_include([m4/ltversion.m4])
1179m4_include([m4/lt~obsolete.m4])
1180m4_include([m4/ogg.m4])
1181m4_include([m4/pkg.m4])
Note: See TracBrowser for help on using the repository browser.

© 2024 Oracle Support Privacy / Do Not Sell My Info Terms of Use Trademark Policy Automated Access Etiquette