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Haibo Huangb2279672019-05-31 16:12:39 -07001# generated automatically by aclocal 1.16.1 -*- Autoconf -*-
Christopher Wileye8679812015-07-01 13:36:18 -07002
Haibo Huangb2279672019-05-31 16:12:39 -07003# Copyright (C) 1996-2018 Free Software Foundation, Inc.
Christopher Wileye8679812015-07-01 13:36:18 -07004
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
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22
Haibo Huangb2279672019-05-31 16:12:39 -070023# Copyright (C) 2002-2018 Free Software Foundation, Inc.
Christopher Wileye8679812015-07-01 13:36:18 -070024#
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
Christopher Wileye8679812015-07-01 13:36:18 -070029# AM_AUTOMAKE_VERSION(VERSION)
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31# Automake X.Y traces this macro to ensure aclocal.m4 has been
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Haibo Huangb2279672019-05-31 16:12:39 -070035[am__api_version='1.16'
Christopher Wileye8679812015-07-01 13:36:18 -070036dnl Some users find AM_AUTOMAKE_VERSION and mistake it for a way to
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Haibo Huangb2279672019-05-31 16:12:39 -070038m4_if([$1], [1.16.1], [],
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42# _AM_AUTOCONF_VERSION(VERSION)
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49# AM_SET_CURRENT_AUTOMAKE_VERSION
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59# AM_AUX_DIR_EXPAND -*- Autoconf -*-
60
Haibo Huangb2279672019-05-31 16:12:39 -070061# Copyright (C) 2001-2018 Free Software Foundation, Inc.
Christopher Wileye8679812015-07-01 13:36:18 -070062#
63# This file is free software; the Free Software Foundation
64# gives unlimited permission to copy and/or distribute it,
65# with or without modifications, as long as this notice is preserved.
66
Christopher Wileye8679812015-07-01 13:36:18 -070067# For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets
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105AC_DEFUN([AM_AUX_DIR_EXPAND],
Narayan Kamathfc74cb42017-09-13 12:53:52 +0100106[AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
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108am_aux_dir=`cd "$ac_aux_dir" && pwd`
Christopher Wileye8679812015-07-01 13:36:18 -0700109])
110
111# AM_CONDITIONAL -*- Autoconf -*-
112
Haibo Huangb2279672019-05-31 16:12:39 -0700113# Copyright (C) 1997-2018 Free Software Foundation, Inc.
Christopher Wileye8679812015-07-01 13:36:18 -0700114#
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
Christopher Wileye8679812015-07-01 13:36:18 -0700119# 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='#'
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138AC_CONFIG_COMMANDS_PRE(
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140 AC_MSG_ERROR([[conditional "$1" was never defined.
141Usually this means the macro was only invoked conditionally.]])
142fi])])
143
Haibo Huangb2279672019-05-31 16:12:39 -0700144# Copyright (C) 1999-2018 Free Software Foundation, Inc.
Christopher Wileye8679812015-07-01 13:36:18 -0700145#
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
Christopher Wileye8679812015-07-01 13:36:18 -0700150
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=])
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182AC_CACHE_CHECK([dependency style of $depcc],
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188 # making a dummy file named 'D' -- because '-MD' means "put the output
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204 am_cv_$1_dependencies_compiler_type=none
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211 *\ -arch\ *\ -arch\ *) am__universal=true ;;
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214 [case " $depcc " in #(
215 *\ -arch\ *\ -arch\ *) am__universal=true ;;
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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$i.h
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234
235 # We check with '-c' and '-o' for the sake of the "dashmstdout"
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238 # versions had trouble with output in subdirs.
239 am__obj=sub/conftest.${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$1], [
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297 && test "$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])])
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322 am_depcomp="$ac_aux_dir/depcomp"
323 AMDEPBACKSLASH='\'
324 am__nodep='_no'
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326AM_CONDITIONAL([AMDEP], [test "x$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
Haibo Huangb2279672019-05-31 16:12:39 -0700335# Copyright (C) 1999-2018 Free Software Foundation, Inc.
Christopher Wileye8679812015-07-01 13:36:18 -0700336#
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
Christopher Wileye8679812015-07-01 13:36:18 -0700341# _AM_OUTPUT_DEPENDENCY_COMMANDS
342# ------------------------------
343AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
344[{
Narayan Kamathfc74cb42017-09-13 12:53:52 +0100345 # Older Autoconf quotes --file arguments for eval, but not when files
Christopher Wileye8679812015-07-01 13:36:18 -0700346 # are listed without --file. Let's play safe and only enable the eval
347 # if we detect the quoting.
Haibo Huangb2279672019-05-31 16:12:39 -0700348 # 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 $CONFIG_FILES])
Christopher Wileye8679812015-07-01 13:36:18 -0700353 shift
Haibo Huangb2279672019-05-31 16:12:39 -0700354 # Used to flag and report bootstrapping failures.
355 am_rc=0
356 for am_mf
Christopher Wileye8679812015-07-01 13:36:18 -0700357 do
358 # Strip MF so we end up with the name of the file.
Haibo Huangb2279672019-05-31 16:12:39 -0700359 am_mf=`AS_ECHO(["$am_mf"]) | sed -e 's/:.*$//'`
360 # Check whether this is an Automake generated Makefile which includes
361 # dependency-tracking related rules and includes.
362 # Grep'ing the whole file directly is not great: AIX grep has a line
Christopher Wileye8679812015-07-01 13:36:18 -0700363 # limit of 2048, but all sed's we know have understand at least 4000.
Haibo Huangb2279672019-05-31 16:12:39 -0700364 sed -n 's,^am--depfiles:.*,X,p' "$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 | $MAKE -f - am--depfiles]) || am_rc=$?
Christopher Wileye8679812015-07-01 13:36:18 -0700371 done
Haibo Huangb2279672019-05-31 16:12:39 -0700372 if test $am_rc -ne 0; then
373 AC_MSG_FAILURE([Something went wrong bootstrapping makefile fragments
374 for automatic dependency tracking. Try re-running configure with the
375 '--disable-dependency-tracking' option to at least be able to build
376 the package (albeit without support for automatic dependency tracking).])
377 fi
378 AS_UNSET([am_dirpart])
379 AS_UNSET([am_filepart])
380 AS_UNSET([am_mf])
381 AS_UNSET([am_rc])
382 rm -f conftest-deps.mk
Christopher Wileye8679812015-07-01 13:36:18 -0700383}
384])# _AM_OUTPUT_DEPENDENCY_COMMANDS
385
386
387# AM_OUTPUT_DEPENDENCY_COMMANDS
388# -----------------------------
389# This macro should only be invoked once -- use via AC_REQUIRE.
390#
Haibo Huangb2279672019-05-31 16:12:39 -0700391# This code is only required when automatic dependency tracking is enabled.
392# This creates each '.Po' and '.Plo' makefile fragment that we'll need in
393# order to bootstrap the dependency handling code.
Christopher Wileye8679812015-07-01 13:36:18 -0700394AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
395[AC_CONFIG_COMMANDS([depfiles],
396 [test x"$AMDEP_TRUE" != x"" || _AM_OUTPUT_DEPENDENCY_COMMANDS],
Haibo Huangb2279672019-05-31 16:12:39 -0700397 [AMDEP_TRUE="$AMDEP_TRUE" MAKE="${MAKE-make}"])])
Christopher Wileye8679812015-07-01 13:36:18 -0700398
399# Do all the work for Automake. -*- Autoconf -*-
400
Haibo Huangb2279672019-05-31 16:12:39 -0700401# Copyright (C) 1996-2018 Free Software Foundation, Inc.
Christopher Wileye8679812015-07-01 13:36:18 -0700402#
403# This file is free software; the Free Software Foundation
404# gives unlimited permission to copy and/or distribute it,
405# with or without modifications, as long as this notice is preserved.
406
Christopher Wileye8679812015-07-01 13:36:18 -0700407# This macro actually does too much. Some checks are only needed if
408# your package does certain things. But this isn't really a big deal.
409
Narayan Kamathfc74cb42017-09-13 12:53:52 +0100410dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
411m4_define([AC_PROG_CC],
412m4_defn([AC_PROG_CC])
413[_AM_PROG_CC_C_O
414])
415
Christopher Wileye8679812015-07-01 13:36:18 -0700416# AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
417# AM_INIT_AUTOMAKE([OPTIONS])
418# -----------------------------------------------
419# The call with PACKAGE and VERSION arguments is the old style
420# call (pre autoconf-2.50), which is being phased out. PACKAGE
421# and VERSION should now be passed to AC_INIT and removed from
422# the call to AM_INIT_AUTOMAKE.
423# We support both call styles for the transition. After
424# the next Automake release, Autoconf can make the AC_INIT
425# arguments mandatory, and then we can depend on a new Autoconf
426# release and drop the old call support.
427AC_DEFUN([AM_INIT_AUTOMAKE],
Narayan Kamathfc74cb42017-09-13 12:53:52 +0100428[AC_PREREQ([2.65])dnl
Christopher Wileye8679812015-07-01 13:36:18 -0700429dnl Autoconf wants to disallow AM_ names. We explicitly allow
430dnl the ones we care about.
431m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
432AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
433AC_REQUIRE([AC_PROG_INSTALL])dnl
434if test "`cd $srcdir && pwd`" != "`pwd`"; then
435 # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
436 # is not polluted with repeated "-I."
437 AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
438 # test to see if srcdir already configured
439 if test -f $srcdir/config.status; then
440 AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
441 fi
442fi
443
444# test whether we have cygpath
445if test -z "$CYGPATH_W"; then
446 if (cygpath --version) >/dev/null 2>/dev/null; then
447 CYGPATH_W='cygpath -w'
448 else
449 CYGPATH_W=echo
450 fi
451fi
452AC_SUBST([CYGPATH_W])
453
454# Define the identity of the package.
455dnl Distinguish between old-style and new-style calls.
456m4_ifval([$2],
457[AC_DIAGNOSE([obsolete],
Narayan Kamathfc74cb42017-09-13 12:53:52 +0100458 [$0: two- and three-arguments forms are deprecated.])
Christopher Wileye8679812015-07-01 13:36:18 -0700459m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
460 AC_SUBST([PACKAGE], [$1])dnl
461 AC_SUBST([VERSION], [$2])],
462[_AM_SET_OPTIONS([$1])dnl
463dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
464m4_if(
465 m4_ifdef([AC_PACKAGE_NAME], [ok]):m4_ifdef([AC_PACKAGE_VERSION], [ok]),
466 [ok:ok],,
467 [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
468 AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
469 AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
470
471_AM_IF_OPTION([no-define],,
472[AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
473 AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
474
475# Some tools Automake needs.
476AC_REQUIRE([AM_SANITY_CHECK])dnl
477AC_REQUIRE([AC_ARG_PROGRAM])dnl
478AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
479AM_MISSING_PROG([AUTOCONF], [autoconf])
480AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
481AM_MISSING_PROG([AUTOHEADER], [autoheader])
482AM_MISSING_PROG([MAKEINFO], [makeinfo])
483AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
484AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
485AC_REQUIRE([AC_PROG_MKDIR_P])dnl
486# For better backward compatibility. To be removed once Automake 1.9.x
487# dies out for good. For more background, see:
Haibo Huangb2279672019-05-31 16:12:39 -0700488# <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
489# <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
Christopher Wileye8679812015-07-01 13:36:18 -0700490AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
Narayan Kamathfc74cb42017-09-13 12:53:52 +0100491# We need awk for the "check" target (and possibly the TAP driver). The
492# system "awk" is bad on some platforms.
Christopher Wileye8679812015-07-01 13:36:18 -0700493AC_REQUIRE([AC_PROG_AWK])dnl
494AC_REQUIRE([AC_PROG_MAKE_SET])dnl
495AC_REQUIRE([AM_SET_LEADING_DOT])dnl
496_AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
497 [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
498 [_AM_PROG_TAR([v7])])])
499_AM_IF_OPTION([no-dependencies],,
500[AC_PROVIDE_IFELSE([AC_PROG_CC],
501 [_AM_DEPENDENCIES([CC])],
502 [m4_define([AC_PROG_CC],
503 m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
504AC_PROVIDE_IFELSE([AC_PROG_CXX],
505 [_AM_DEPENDENCIES([CXX])],
506 [m4_define([AC_PROG_CXX],
507 m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
508AC_PROVIDE_IFELSE([AC_PROG_OBJC],
509 [_AM_DEPENDENCIES([OBJC])],
510 [m4_define([AC_PROG_OBJC],
511 m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
Narayan Kamathfc74cb42017-09-13 12:53:52 +0100512AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
Christopher Wileye8679812015-07-01 13:36:18 -0700513 [_AM_DEPENDENCIES([OBJCXX])],
514 [m4_define([AC_PROG_OBJCXX],
Narayan Kamathfc74cb42017-09-13 12:53:52 +0100515 m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
Christopher Wileye8679812015-07-01 13:36:18 -0700516])
Narayan Kamathfc74cb42017-09-13 12:53:52 +0100517AC_REQUIRE([AM_SILENT_RULES])dnl
518dnl The testsuite driver may need to know about EXEEXT, so add the
519dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen. This
520dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
Christopher Wileye8679812015-07-01 13:36:18 -0700521AC_CONFIG_COMMANDS_PRE(dnl
522[m4_provide_if([_AM_COMPILER_EXEEXT],
523 [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
Narayan Kamathfc74cb42017-09-13 12:53:52 +0100524
525# POSIX will say in a future version that running "rm -f" with no argument
526# is OK; and we want to be able to make that assumption in our Makefile
527# recipes. So use an aggressive probe to check that the usage we want is
528# actually supported "in the wild" to an acceptable degree.
529# See automake bug#10828.
530# To make any issue more visible, cause the running configure to be aborted
531# by default if the 'rm' program in use doesn't match our expectations; the
532# user can still override this though.
533if rm -f && rm -fr && rm -rf; then : OK; else
534 cat >&2 <<'END'
535Oops!
536
537Your 'rm' program seems unable to run without file operands specified
538on the command line, even when the '-f' option is present. This is contrary
539to the behaviour of most rm programs out there, and not conforming with
540the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
541
542Please tell bug-automake@gnu.org about your system, including the value
543of your $PATH and any error possibly output before this message. This
544can help us improve future automake versions.
545
546END
547 if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
548 echo 'Configuration will proceed anyway, since you have set the' >&2
549 echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
550 echo >&2
551 else
552 cat >&2 <<'END'
553Aborting the configuration process, to ensure you take notice of the issue.
554
555You can download and install GNU coreutils to get an 'rm' implementation
Haibo Huangb2279672019-05-31 16:12:39 -0700556that behaves properly: <https://www.gnu.org/software/coreutils/>.
Narayan Kamathfc74cb42017-09-13 12:53:52 +0100557
558If you want to complete the configuration process using your problematic
559'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
560to "yes", and re-run configure.
561
562END
563 AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
564 fi
565fi
566dnl The trailing newline in this macro's definition is deliberate, for
567dnl backward compatibility and to allow trailing 'dnl'-style comments
568dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
Christopher Wileye8679812015-07-01 13:36:18 -0700569])
570
571dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion. Do not
572dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
573dnl mangled by Autoconf and run in a shell conditional statement.
574m4_define([_AC_COMPILER_EXEEXT],
575m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
576
Christopher Wileye8679812015-07-01 13:36:18 -0700577# When config.status generates a header, we must update the stamp-h file.
578# This file resides in the same directory as the config header
579# that is generated. The stamp files are numbered to have different names.
580
581# Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
582# loop where config.status creates the headers, so we can generate
583# our stamp files there.
584AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
585[# Compute $1's index in $config_headers.
586_am_arg=$1
587_am_stamp_count=1
588for _am_header in $config_headers :; do
589 case $_am_header in
590 $_am_arg | $_am_arg:* )
591 break ;;
592 * )
593 _am_stamp_count=`expr $_am_stamp_count + 1` ;;
594 esac
595done
596echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
597
Haibo Huangb2279672019-05-31 16:12:39 -0700598# Copyright (C) 2001-2018 Free Software Foundation, Inc.
Christopher Wileye8679812015-07-01 13:36:18 -0700599#
600# This file is free software; the Free Software Foundation
601# gives unlimited permission to copy and/or distribute it,
602# with or without modifications, as long as this notice is preserved.
603
Christopher Wileye8679812015-07-01 13:36:18 -0700604# AM_PROG_INSTALL_SH
605# ------------------
606# Define $install_sh.
607AC_DEFUN([AM_PROG_INSTALL_SH],
608[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
Narayan Kamathfc74cb42017-09-13 12:53:52 +0100609if test x"${install_sh+set}" != xset; then
Christopher Wileye8679812015-07-01 13:36:18 -0700610 case $am_aux_dir in
611 *\ * | *\ *)
612 install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
613 *)
614 install_sh="\${SHELL} $am_aux_dir/install-sh"
615 esac
616fi
617AC_SUBST([install_sh])])
618
Haibo Huangb2279672019-05-31 16:12:39 -0700619# Copyright (C) 2003-2018 Free Software Foundation, Inc.
Christopher Wileye8679812015-07-01 13:36:18 -0700620#
621# This file is free software; the Free Software Foundation
622# gives unlimited permission to copy and/or distribute it,
623# with or without modifications, as long as this notice is preserved.
624
Christopher Wileye8679812015-07-01 13:36:18 -0700625# Check whether the underlying file-system supports filenames
626# with a leading dot. For instance MS-DOS doesn't.
627AC_DEFUN([AM_SET_LEADING_DOT],
628[rm -rf .tst 2>/dev/null
629mkdir .tst 2>/dev/null
630if test -d .tst; then
631 am__leading_dot=.
632else
633 am__leading_dot=_
634fi
635rmdir .tst 2>/dev/null
636AC_SUBST([am__leading_dot])])
637
638# Check to see how 'make' treats includes. -*- Autoconf -*-
639
Haibo Huangb2279672019-05-31 16:12:39 -0700640# Copyright (C) 2001-2018 Free Software Foundation, Inc.
Christopher Wileye8679812015-07-01 13:36:18 -0700641#
642# This file is free software; the Free Software Foundation
643# gives unlimited permission to copy and/or distribute it,
644# with or without modifications, as long as this notice is preserved.
645
Christopher Wileye8679812015-07-01 13:36:18 -0700646# AM_MAKE_INCLUDE()
647# -----------------
Haibo Huangb2279672019-05-31 16:12:39 -0700648# Check whether make has an 'include' directive that can support all
649# the idioms we need for our automatic dependency tracking code.
Christopher Wileye8679812015-07-01 13:36:18 -0700650AC_DEFUN([AM_MAKE_INCLUDE],
Haibo Huangb2279672019-05-31 16:12:39 -0700651[AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
652cat > confinc.mk << 'END'
Christopher Wileye8679812015-07-01 13:36:18 -0700653am__doit:
Haibo Huangb2279672019-05-31 16:12:39 -0700654 @echo this is the am__doit target >confinc.out
Christopher Wileye8679812015-07-01 13:36:18 -0700655.PHONY: am__doit
656END
Christopher Wileye8679812015-07-01 13:36:18 -0700657am__include="#"
658am__quote=
Haibo Huangb2279672019-05-31 16:12:39 -0700659# BSD make does it like this.
660echo '.include "confinc.mk" # ignored' > confmf.BSD
661# Other make implementations (GNU, Solaris 10, AIX) do it like this.
662echo 'include confinc.mk # ignored' > confmf.GNU
663_am_result=no
664for s in GNU BSD; do
665 AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
666 AS_CASE([$?:`cat confinc.out 2>/dev/null`],
667 ['0:this is the am__doit target'],
668 [AS_CASE([$s],
669 [BSD], [am__include='.include' am__quote='"'],
670 [am__include='include' am__quote=''])])
671 if test "$am__include" != "#"; then
672 _am_result="yes ($s style)"
673 break
674 fi
675done
676rm -f confinc.* confmf.*
677AC_MSG_RESULT([${_am_result}])
678AC_SUBST([am__include])])
679AC_SUBST([am__quote])])
Christopher Wileye8679812015-07-01 13:36:18 -0700680
Josh Gao83a0c9c2017-08-10 12:30:25 -0700681# Fake the existence of programs that GNU maintainers use. -*- Autoconf -*-
682
Haibo Huangb2279672019-05-31 16:12:39 -0700683# Copyright (C) 1997-2018 Free Software Foundation, Inc.
Josh Gao83a0c9c2017-08-10 12:30:25 -0700684#
685# This file is free software; the Free Software Foundation
686# gives unlimited permission to copy and/or distribute it,
687# with or without modifications, as long as this notice is preserved.
688
Christopher Wileye8679812015-07-01 13:36:18 -0700689# AM_MISSING_PROG(NAME, PROGRAM)
690# ------------------------------
691AC_DEFUN([AM_MISSING_PROG],
692[AC_REQUIRE([AM_MISSING_HAS_RUN])
693$1=${$1-"${am_missing_run}$2"}
694AC_SUBST($1)])
695
Christopher Wileye8679812015-07-01 13:36:18 -0700696# AM_MISSING_HAS_RUN
697# ------------------
Narayan Kamathfc74cb42017-09-13 12:53:52 +0100698# Define MISSING if not defined so far and test if it is modern enough.
699# If it is, set am_missing_run to use it, otherwise, to nothing.
Christopher Wileye8679812015-07-01 13:36:18 -0700700AC_DEFUN([AM_MISSING_HAS_RUN],
701[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
702AC_REQUIRE_AUX_FILE([missing])dnl
703if test x"${MISSING+set}" != xset; then
704 case $am_aux_dir in
705 *\ * | *\ *)
706 MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
707 *)
708 MISSING="\${SHELL} $am_aux_dir/missing" ;;
709 esac
710fi
711# Use eval to expand $SHELL
Narayan Kamathfc74cb42017-09-13 12:53:52 +0100712if eval "$MISSING --is-lightweight"; then
713 am_missing_run="$MISSING "
Christopher Wileye8679812015-07-01 13:36:18 -0700714else
715 am_missing_run=
716 AC_MSG_WARN(['missing' script is too old or missing])
717fi
718])
719
720# Helper functions for option handling. -*- Autoconf -*-
721
Haibo Huangb2279672019-05-31 16:12:39 -0700722# Copyright (C) 2001-2018 Free Software Foundation, Inc.
Christopher Wileye8679812015-07-01 13:36:18 -0700723#
724# This file is free software; the Free Software Foundation
725# gives unlimited permission to copy and/or distribute it,
726# with or without modifications, as long as this notice is preserved.
727
Christopher Wileye8679812015-07-01 13:36:18 -0700728# _AM_MANGLE_OPTION(NAME)
729# -----------------------
730AC_DEFUN([_AM_MANGLE_OPTION],
731[[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
732
733# _AM_SET_OPTION(NAME)
734# --------------------
735# Set option NAME. Presently that only means defining a flag for this option.
736AC_DEFUN([_AM_SET_OPTION],
737[m4_define(_AM_MANGLE_OPTION([$1]), [1])])
738
739# _AM_SET_OPTIONS(OPTIONS)
740# ------------------------
741# OPTIONS is a space-separated list of Automake options.
742AC_DEFUN([_AM_SET_OPTIONS],
743[m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
744
745# _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
746# -------------------------------------------
747# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
748AC_DEFUN([_AM_IF_OPTION],
749[m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
750
Haibo Huangb2279672019-05-31 16:12:39 -0700751# Copyright (C) 1999-2018 Free Software Foundation, Inc.
Elliott Hughes2a572d12017-08-07 14:18:18 -0700752#
753# This file is free software; the Free Software Foundation
754# gives unlimited permission to copy and/or distribute it,
755# with or without modifications, as long as this notice is preserved.
Christopher Wileye8679812015-07-01 13:36:18 -0700756
Narayan Kamathfc74cb42017-09-13 12:53:52 +0100757# _AM_PROG_CC_C_O
758# ---------------
759# Like AC_PROG_CC_C_O, but changed for automake. We rewrite AC_PROG_CC
760# to automatically call this.
761AC_DEFUN([_AM_PROG_CC_C_O],
762[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
763AC_REQUIRE_AUX_FILE([compile])dnl
764AC_LANG_PUSH([C])dnl
765AC_CACHE_CHECK(
766 [whether $CC understands -c and -o together],
767 [am_cv_prog_cc_c_o],
768 [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
769 # Make sure it works both with $CC and with simple cc.
770 # Following AC_PROG_CC_C_O, we do the test twice because some
771 # compilers refuse to overwrite an existing .o file with -o,
772 # though they will create one.
773 am_cv_prog_cc_c_o=yes
774 for am_i in 1 2; do
775 if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
776 && test -f conftest2.$ac_objext; then
777 : OK
778 else
779 am_cv_prog_cc_c_o=no
780 break
781 fi
782 done
783 rm -f core conftest*
784 unset am_i])
785if test "$am_cv_prog_cc_c_o" != yes; then
786 # Losing compiler, so override with the script.
787 # FIXME: It is wrong to rewrite CC.
788 # But if we don't then we get into trouble of one sort or another.
789 # A longer-term fix would be to have automake use am__CC in this case,
790 # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
791 CC="$am_aux_dir/compile $CC"
792fi
793AC_LANG_POP([C])])
794
795# For backward compatibility.
796AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
797
Haibo Huangb2279672019-05-31 16:12:39 -0700798# Copyright (C) 2001-2018 Free Software Foundation, Inc.
Narayan Kamathfc74cb42017-09-13 12:53:52 +0100799#
800# This file is free software; the Free Software Foundation
801# gives unlimited permission to copy and/or distribute it,
802# with or without modifications, as long as this notice is preserved.
803
804# AM_RUN_LOG(COMMAND)
805# -------------------
806# Run COMMAND, save the exit status in ac_status, and log it.
807# (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
808AC_DEFUN([AM_RUN_LOG],
809[{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
810 ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
811 ac_status=$?
812 echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
813 (exit $ac_status); }])
814
815# Check to make sure that the build environment is sane. -*- Autoconf -*-
816
Haibo Huangb2279672019-05-31 16:12:39 -0700817# Copyright (C) 1996-2018 Free Software Foundation, Inc.
Narayan Kamathfc74cb42017-09-13 12:53:52 +0100818#
819# This file is free software; the Free Software Foundation
820# gives unlimited permission to copy and/or distribute it,
821# with or without modifications, as long as this notice is preserved.
Josh Gao83a0c9c2017-08-10 12:30:25 -0700822
Christopher Wileye8679812015-07-01 13:36:18 -0700823# AM_SANITY_CHECK
824# ---------------
825AC_DEFUN([AM_SANITY_CHECK],
826[AC_MSG_CHECKING([whether build environment is sane])
827# Reject unsafe characters in $srcdir or the absolute working directory
828# name. Accept space and tab only in the latter.
829am_lf='
830'
831case `pwd` in
832 *[[\\\"\#\$\&\'\`$am_lf]]*)
833 AC_MSG_ERROR([unsafe absolute working directory name]);;
834esac
835case $srcdir in
836 *[[\\\"\#\$\&\'\`$am_lf\ \ ]]*)
837 AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
838esac
839
840# Do 'set' in a subshell so we don't clobber the current shell's
841# arguments. Must try -L first in case configure is actually a
842# symlink; some systems play weird games with the mod time of symlinks
843# (eg FreeBSD returns the mod time of the symlink's containing
844# directory).
845if (
846 am_has_slept=no
847 for am_try in 1 2; do
848 echo "timestamp, slept: $am_has_slept" > conftest.file
849 set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
850 if test "$[*]" = "X"; then
851 # -L didn't work.
852 set X `ls -t "$srcdir/configure" conftest.file`
853 fi
854 if test "$[*]" != "X $srcdir/configure conftest.file" \
855 && test "$[*]" != "X conftest.file $srcdir/configure"; then
856
857 # If neither matched, then we have a broken ls. This can happen
858 # if, for instance, CONFIG_SHELL is bash and it inherits a
859 # broken ls alias from the environment. This has actually
860 # happened. Such a system could not be considered "sane".
861 AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken
862 alias in your environment])
863 fi
864 if test "$[2]" = conftest.file || test $am_try -eq 2; then
865 break
866 fi
867 # Just in case.
868 sleep 1
869 am_has_slept=yes
870 done
871 test "$[2]" = conftest.file
872 )
873then
874 # Ok.
875 :
876else
877 AC_MSG_ERROR([newly created file is older than distributed files!
878Check your system clock])
879fi
880AC_MSG_RESULT([yes])
881# If we didn't sleep, we still need to ensure time stamps of config.status and
882# generated files are strictly newer.
883am_sleep_pid=
884if grep 'slept: no' conftest.file >/dev/null 2>&1; then
885 ( sleep 1 ) &
886 am_sleep_pid=$!
887fi
888AC_CONFIG_COMMANDS_PRE(
889 [AC_MSG_CHECKING([that generated files are newer than configure])
890 if test -n "$am_sleep_pid"; then
891 # Hide warnings about reused PIDs.
892 wait $am_sleep_pid 2>/dev/null
893 fi
894 AC_MSG_RESULT([done])])
895rm -f conftest.file
896])
897
Haibo Huangb2279672019-05-31 16:12:39 -0700898# Copyright (C) 2009-2018 Free Software Foundation, Inc.
Christopher Wileye8679812015-07-01 13:36:18 -0700899#
900# This file is free software; the Free Software Foundation
901# gives unlimited permission to copy and/or distribute it,
902# with or without modifications, as long as this notice is preserved.
903
Narayan Kamathfc74cb42017-09-13 12:53:52 +0100904# AM_SILENT_RULES([DEFAULT])
905# --------------------------
906# Enable less verbose build rules; with the default set to DEFAULT
907# ("yes" being less verbose, "no" or empty being verbose).
908AC_DEFUN([AM_SILENT_RULES],
909[AC_ARG_ENABLE([silent-rules], [dnl
910AS_HELP_STRING(
911 [--enable-silent-rules],
912 [less verbose build output (undo: "make V=1")])
913AS_HELP_STRING(
914 [--disable-silent-rules],
915 [verbose build output (undo: "make V=0")])dnl
916])
917case $enable_silent_rules in @%:@ (((
918 yes) AM_DEFAULT_VERBOSITY=0;;
919 no) AM_DEFAULT_VERBOSITY=1;;
920 *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
921esac
922dnl
923dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
924dnl do not support nested variable expansions.
925dnl See automake bug#9928 and bug#10237.
926am_make=${MAKE-make}
927AC_CACHE_CHECK([whether $am_make supports nested variables],
928 [am_cv_make_support_nested_variables],
929 [if AS_ECHO([['TRUE=$(BAR$(V))
930BAR0=false
931BAR1=true
932V=1
933am__doit:
934 @$(TRUE)
935.PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
936 am_cv_make_support_nested_variables=yes
937else
938 am_cv_make_support_nested_variables=no
939fi])
940if test $am_cv_make_support_nested_variables = yes; then
941 dnl Using '$V' instead of '$(V)' breaks IRIX make.
942 AM_V='$(V)'
943 AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
944else
945 AM_V=$AM_DEFAULT_VERBOSITY
946 AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
947fi
948AC_SUBST([AM_V])dnl
949AM_SUBST_NOTMAKE([AM_V])dnl
950AC_SUBST([AM_DEFAULT_V])dnl
951AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
952AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
953AM_BACKSLASH='\'
954AC_SUBST([AM_BACKSLASH])dnl
955_AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
956])
957
Haibo Huangb2279672019-05-31 16:12:39 -0700958# Copyright (C) 2001-2018 Free Software Foundation, Inc.
Narayan Kamathfc74cb42017-09-13 12:53:52 +0100959#
960# This file is free software; the Free Software Foundation
961# gives unlimited permission to copy and/or distribute it,
962# with or without modifications, as long as this notice is preserved.
Christopher Wileye8679812015-07-01 13:36:18 -0700963
964# AM_PROG_INSTALL_STRIP
965# ---------------------
966# One issue with vendor 'install' (even GNU) is that you can't
967# specify the program used to strip binaries. This is especially
968# annoying in cross-compiling environments, where the build's strip
969# is unlikely to handle the host's binaries.
970# Fortunately install-sh will honor a STRIPPROG variable, so we
971# always use install-sh in "make install-strip", and initialize
972# STRIPPROG with the value of the STRIP variable (set by the user).
973AC_DEFUN([AM_PROG_INSTALL_STRIP],
974[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
975# Installed binaries are usually stripped using 'strip' when the user
976# run "make install-strip". However 'strip' might not be the right
977# tool to use in cross-compilation environments, therefore Automake
978# will honor the 'STRIP' environment variable to overrule this program.
979dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
980if test "$cross_compiling" != no; then
981 AC_CHECK_TOOL([STRIP], [strip], :)
982fi
983INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
984AC_SUBST([INSTALL_STRIP_PROGRAM])])
985
Haibo Huangb2279672019-05-31 16:12:39 -0700986# Copyright (C) 2006-2018 Free Software Foundation, Inc.
Christopher Wileye8679812015-07-01 13:36:18 -0700987#
988# This file is free software; the Free Software Foundation
989# gives unlimited permission to copy and/or distribute it,
990# with or without modifications, as long as this notice is preserved.
991
Christopher Wileye8679812015-07-01 13:36:18 -0700992# _AM_SUBST_NOTMAKE(VARIABLE)
993# ---------------------------
994# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
995# This macro is traced by Automake.
996AC_DEFUN([_AM_SUBST_NOTMAKE])
997
998# AM_SUBST_NOTMAKE(VARIABLE)
999# --------------------------
1000# Public sister of _AM_SUBST_NOTMAKE.
1001AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
1002
1003# Check how to create a tarball. -*- Autoconf -*-
1004
Haibo Huangb2279672019-05-31 16:12:39 -07001005# Copyright (C) 2004-2018 Free Software Foundation, Inc.
Christopher Wileye8679812015-07-01 13:36:18 -07001006#
1007# This file is free software; the Free Software Foundation
1008# gives unlimited permission to copy and/or distribute it,
1009# with or without modifications, as long as this notice is preserved.
1010
Christopher Wileye8679812015-07-01 13:36:18 -07001011# _AM_PROG_TAR(FORMAT)
1012# --------------------
1013# Check how to create a tarball in format FORMAT.
1014# FORMAT should be one of 'v7', 'ustar', or 'pax'.
1015#
1016# Substitute a variable $(am__tar) that is a command
1017# writing to stdout a FORMAT-tarball containing the directory
1018# $tardir.
1019# tardir=directory && $(am__tar) > result.tar
1020#
1021# Substitute a variable $(am__untar) that extract such
1022# a tarball read from stdin.
1023# $(am__untar) < result.tar
Narayan Kamathfc74cb42017-09-13 12:53:52 +01001024#
Christopher Wileye8679812015-07-01 13:36:18 -07001025AC_DEFUN([_AM_PROG_TAR],
1026[# Always define AMTAR for backward compatibility. Yes, it's still used
1027# in the wild :-( We should find a proper way to deprecate it ...
1028AC_SUBST([AMTAR], ['$${TAR-tar}'])
Narayan Kamathfc74cb42017-09-13 12:53:52 +01001029
1030# We'll loop over all known methods to create a tar archive until one works.
Josh Gao83a0c9c2017-08-10 12:30:25 -07001031_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
Christopher Wileye8679812015-07-01 13:36:18 -07001032
Narayan Kamathfc74cb42017-09-13 12:53:52 +01001033m4_if([$1], [v7],
1034 [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
Elliott Hughes2a572d12017-08-07 14:18:18 -07001035
Narayan Kamathfc74cb42017-09-13 12:53:52 +01001036 [m4_case([$1],
1037 [ustar],
1038 [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
1039 # There is notably a 21 bits limit for the UID and the GID. In fact,
1040 # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
1041 # and bug#13588).
1042 am_max_uid=2097151 # 2^21 - 1
1043 am_max_gid=$am_max_uid
1044 # The $UID and $GID variables are not portable, so we need to resort
1045 # to the POSIX-mandated id(1) utility. Errors in the 'id' calls
1046 # below are definitely unexpected, so allow the users to see them
1047 # (that is, avoid stderr redirection).
1048 am_uid=`id -u || echo unknown`
1049 am_gid=`id -g || echo unknown`
1050 AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
1051 if test $am_uid -le $am_max_uid; then
1052 AC_MSG_RESULT([yes])
1053 else
1054 AC_MSG_RESULT([no])
1055 _am_tools=none
1056 fi
1057 AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
1058 if test $am_gid -le $am_max_gid; then
1059 AC_MSG_RESULT([yes])
1060 else
1061 AC_MSG_RESULT([no])
1062 _am_tools=none
1063 fi],
1064
1065 [pax],
1066 [],
1067
1068 [m4_fatal([Unknown tar format])])
1069
1070 AC_MSG_CHECKING([how to create a $1 tar archive])
1071
1072 # Go ahead even if we have the value already cached. We do so because we
1073 # need to set the values for the 'am__tar' and 'am__untar' variables.
1074 _am_tools=${am_cv_prog_tar_$1-$_am_tools}
1075
1076 for _am_tool in $_am_tools; do
1077 case $_am_tool in
1078 gnutar)
1079 for _am_tar in tar gnutar gtar; do
1080 AM_RUN_LOG([$_am_tar --version]) && break
1081 done
1082 am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
1083 am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
1084 am__untar="$_am_tar -xf -"
1085 ;;
1086 plaintar)
1087 # Must skip GNU tar: if it does not support --format= it doesn't create
1088 # ustar tarball either.
1089 (tar --version) >/dev/null 2>&1 && continue
1090 am__tar='tar chf - "$$tardir"'
1091 am__tar_='tar chf - "$tardir"'
1092 am__untar='tar xf -'
1093 ;;
1094 pax)
1095 am__tar='pax -L -x $1 -w "$$tardir"'
1096 am__tar_='pax -L -x $1 -w "$tardir"'
1097 am__untar='pax -r'
1098 ;;
1099 cpio)
1100 am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
1101 am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
1102 am__untar='cpio -i -H $1 -d'
1103 ;;
1104 none)
1105 am__tar=false
1106 am__tar_=false
1107 am__untar=false
1108 ;;
1109 esac
1110
1111 # If the value was cached, stop now. We just wanted to have am__tar
1112 # and am__untar set.
1113 test -n "${am_cv_prog_tar_$1}" && break
1114
1115 # tar/untar a dummy directory, and stop if the command works.
1116 rm -rf conftest.dir
1117 mkdir conftest.dir
1118 echo GrepMe > conftest.dir/file
1119 AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
1120 rm -rf conftest.dir
1121 if test -s conftest.tar; then
1122 AM_RUN_LOG([$am__untar <conftest.tar])
1123 AM_RUN_LOG([cat conftest.dir/file])
1124 grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
1125 fi
1126 done
Christopher Wileye8679812015-07-01 13:36:18 -07001127 rm -rf conftest.dir
Christopher Wileye8679812015-07-01 13:36:18 -07001128
Narayan Kamathfc74cb42017-09-13 12:53:52 +01001129 AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
1130 AC_MSG_RESULT([$am_cv_prog_tar_$1])])
1131
Christopher Wileye8679812015-07-01 13:36:18 -07001132AC_SUBST([am__tar])
1133AC_SUBST([am__untar])
1134]) # _AM_PROG_TAR
1135
1136m4_include([m4/ac_backport_259_ssizet.m4])
1137m4_include([m4/acx_pthread.m4])
Narayan Kamathfc74cb42017-09-13 12:53:52 +01001138m4_include([m4/libevent_openssl.m4])
Christopher Wileye8679812015-07-01 13:36:18 -07001139m4_include([m4/libtool.m4])
1140m4_include([m4/ltoptions.m4])
1141m4_include([m4/ltsugar.m4])
1142m4_include([m4/ltversion.m4])
1143m4_include([m4/lt~obsolete.m4])
Narayan Kamathfc74cb42017-09-13 12:53:52 +01001144m4_include([m4/ntp_pkg_config.m4])