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Haibo Huangf0077b82020-07-10 20:21:19 -07001# generated automatically by aclocal 1.16.2 -*- Autoconf -*-
Christopher Wileye8679812015-07-01 13:36:18 -07002
Haibo Huangf0077b82020-07-10 20:21:19 -07003# Copyright (C) 1996-2020 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 Huangf0077b82020-07-10 20:21:19 -070023# Copyright (C) 2002-2020 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)
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],
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
37dnl require some minimum version. Point them to the right macro.
Haibo Huangf0077b82020-07-10 20:21:19 -070038m4_if([$1], [1.16.2], [],
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42# _AM_AUTOCONF_VERSION(VERSION)
43# -----------------------------
44# aclocal traces this macro to find the Autoconf version.
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47m4_define([_AM_AUTOCONF_VERSION], [])
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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],
Haibo Huangf0077b82020-07-10 20:21:19 -070054[AM_AUTOMAKE_VERSION([1.16.2])dnl
Christopher Wileye8679812015-07-01 13:36:18 -070055m4_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
Haibo Huangf0077b82020-07-10 20:21:19 -070061# Copyright (C) 2001-2020 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
107# Expand $ac_aux_dir to an absolute path.
108am_aux_dir=`cd "$ac_aux_dir" && pwd`
Christopher Wileye8679812015-07-01 13:36:18 -0700109])
110
111# AM_CONDITIONAL -*- Autoconf -*-
112
Haibo Huangf0077b82020-07-10 20:21:19 -0700113# Copyright (C) 1997-2020 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='#'
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
Haibo Huangf0077b82020-07-10 20:21:19 -0700144# Copyright (C) 1999-2020 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=])
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
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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`
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208 am__universal=false
209 m4_case([$1], [CC],
210 [case " $depcc " in #(
211 *\ -arch\ *\ -arch\ *) am__universal=true ;;
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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"
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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$enable_dependency_tracking" != xno])
327AC_SUBST([AMDEPBACKSLASH])dnl
328_AM_SUBST_NOTMAKE([AMDEPBACKSLASH])dnl
329AC_SUBST([am__nodep])dnl
330_AM_SUBST_NOTMAKE([am__nodep])dnl
331])
332
333# Generate code to set up dependency tracking. -*- Autoconf -*-
334
Haibo Huangf0077b82020-07-10 20:21:19 -0700335# Copyright (C) 1999-2020 Free Software Foundation, Inc.
Christopher Wileye8679812015-07-01 13:36:18 -0700336#
337# This file is free software; the Free Software Foundation
338# gives unlimited permission to copy and/or distribute it,
339# with or without modifications, as long as this notice is preserved.
340
Christopher Wileye8679812015-07-01 13:36:18 -0700341# _AM_OUTPUT_DEPENDENCY_COMMANDS
342# ------------------------------
343AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
344[{
Narayan Kamathfc74cb42017-09-13 12:53:52 +0100345 # Older Autoconf quotes --file arguments for eval, but not when files
Christopher Wileye8679812015-07-01 13:36:18 -0700346 # are listed without --file. Let's play safe and only enable the eval
347 # if we detect the quoting.
Haibo Huangb2279672019-05-31 16:12:39 -0700348 # TODO: see whether this extra hack can be removed once we start
349 # requiring Autoconf 2.70 or later.
350 AS_CASE([$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 $am_rc -ne 0; then
373 AC_MSG_FAILURE([Something went wrong bootstrapping makefile fragments
Haibo Huangf0077b82020-07-10 20:21:19 -0700374 for automatic dependency tracking. If GNU make was not used, consider
375 re-running the configure script with MAKE="gmake" (or whatever is
376 necessary). You can also try re-running configure with the
Haibo Huangb2279672019-05-31 16:12:39 -0700377 '--disable-dependency-tracking' option to at least be able to build
378 the package (albeit without support for automatic dependency tracking).])
379 fi
380 AS_UNSET([am_dirpart])
381 AS_UNSET([am_filepart])
382 AS_UNSET([am_mf])
383 AS_UNSET([am_rc])
384 rm -f conftest-deps.mk
Christopher Wileye8679812015-07-01 13:36:18 -0700385}
386])# _AM_OUTPUT_DEPENDENCY_COMMANDS
387
388
389# AM_OUTPUT_DEPENDENCY_COMMANDS
390# -----------------------------
391# This macro should only be invoked once -- use via AC_REQUIRE.
392#
Haibo Huangb2279672019-05-31 16:12:39 -0700393# This code is only required when automatic dependency tracking is enabled.
394# This creates each '.Po' and '.Plo' makefile fragment that we'll need in
395# order to bootstrap the dependency handling code.
Christopher Wileye8679812015-07-01 13:36:18 -0700396AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
397[AC_CONFIG_COMMANDS([depfiles],
398 [test x"$AMDEP_TRUE" != x"" || _AM_OUTPUT_DEPENDENCY_COMMANDS],
Haibo Huangb2279672019-05-31 16:12:39 -0700399 [AMDEP_TRUE="$AMDEP_TRUE" MAKE="${MAKE-make}"])])
Christopher Wileye8679812015-07-01 13:36:18 -0700400
401# Do all the work for Automake. -*- Autoconf -*-
402
Haibo Huangf0077b82020-07-10 20:21:19 -0700403# Copyright (C) 1996-2020 Free Software Foundation, Inc.
Christopher Wileye8679812015-07-01 13:36:18 -0700404#
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
Christopher Wileye8679812015-07-01 13:36:18 -0700409# 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
Narayan Kamathfc74cb42017-09-13 12:53:52 +0100412dnl 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
Christopher Wileye8679812015-07-01 13:36:18 -0700418# 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],
Narayan Kamathfc74cb42017-09-13 12:53:52 +0100430[AC_PREREQ([2.65])dnl
Christopher Wileye8679812015-07-01 13:36:18 -0700431dnl 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],
Narayan Kamathfc74cb42017-09-13 12:53:52 +0100460 [$0: two- and three-arguments forms are deprecated.])
Christopher Wileye8679812015-07-01 13:36:18 -0700461m4_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-${am__api_version}])
483AM_MISSING_PROG([AUTOHEADER], [autoheader])
484AM_MISSING_PROG([MAKEINFO], [makeinfo])
485AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
486AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
487AC_REQUIRE([AC_PROG_MKDIR_P])dnl
488# For better backward compatibility. To be removed once Automake 1.9.x
489# dies out for good. For more background, see:
Haibo Huangb2279672019-05-31 16:12:39 -0700490# <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
491# <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
Christopher Wileye8679812015-07-01 13:36:18 -0700492AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
Narayan Kamathfc74cb42017-09-13 12:53:52 +0100493# We need awk for the "check" target (and possibly the TAP driver). The
494# system "awk" is bad on some platforms.
Christopher Wileye8679812015-07-01 13:36:18 -0700495AC_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
Narayan Kamathfc74cb42017-09-13 12:53:52 +0100514AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
Christopher Wileye8679812015-07-01 13:36:18 -0700515 [_AM_DEPENDENCIES([OBJCXX])],
516 [m4_define([AC_PROG_OBJCXX],
Narayan Kamathfc74cb42017-09-13 12:53:52 +0100517 m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
Christopher Wileye8679812015-07-01 13:36:18 -0700518])
Narayan Kamathfc74cb42017-09-13 12:53:52 +0100519AC_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.
Christopher Wileye8679812015-07-01 13:36:18 -0700523AC_CONFIG_COMMANDS_PRE(dnl
524[m4_provide_if([_AM_COMPILER_EXEEXT],
525 [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
Narayan Kamathfc74cb42017-09-13 12:53:52 +0100526
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
Haibo Huangb2279672019-05-31 16:12:39 -0700558that behaves properly: <https://www.gnu.org/software/coreutils/>.
Narayan Kamathfc74cb42017-09-13 12:53:52 +0100559
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.
Christopher Wileye8679812015-07-01 13:36:18 -0700571])
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
Christopher Wileye8679812015-07-01 13:36:18 -0700579# 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
Haibo Huangf0077b82020-07-10 20:21:19 -0700600# Copyright (C) 2001-2020 Free Software Foundation, Inc.
Christopher Wileye8679812015-07-01 13:36:18 -0700601#
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
Christopher Wileye8679812015-07-01 13:36:18 -0700606# AM_PROG_INSTALL_SH
607# ------------------
608# Define $install_sh.
609AC_DEFUN([AM_PROG_INSTALL_SH],
610[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
Narayan Kamathfc74cb42017-09-13 12:53:52 +0100611if test x"${install_sh+set}" != xset; then
Christopher Wileye8679812015-07-01 13:36:18 -0700612 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
Haibo Huangf0077b82020-07-10 20:21:19 -0700621# Copyright (C) 2003-2020 Free Software Foundation, Inc.
Christopher Wileye8679812015-07-01 13:36:18 -0700622#
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
Christopher Wileye8679812015-07-01 13:36:18 -0700627# 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# Check to see how 'make' treats includes. -*- Autoconf -*-
641
Haibo Huangf0077b82020-07-10 20:21:19 -0700642# Copyright (C) 2001-2020 Free Software Foundation, Inc.
Christopher Wileye8679812015-07-01 13:36:18 -0700643#
644# This file is free software; the Free Software Foundation
645# gives unlimited permission to copy and/or distribute it,
646# with or without modifications, as long as this notice is preserved.
647
Christopher Wileye8679812015-07-01 13:36:18 -0700648# AM_MAKE_INCLUDE()
649# -----------------
Haibo Huangb2279672019-05-31 16:12:39 -0700650# Check whether make has an 'include' directive that can support all
651# the idioms we need for our automatic dependency tracking code.
Christopher Wileye8679812015-07-01 13:36:18 -0700652AC_DEFUN([AM_MAKE_INCLUDE],
Haibo Huangb2279672019-05-31 16:12:39 -0700653[AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
654cat > confinc.mk << 'END'
Christopher Wileye8679812015-07-01 13:36:18 -0700655am__doit:
Haibo Huangb2279672019-05-31 16:12:39 -0700656 @echo this is the am__doit target >confinc.out
Christopher Wileye8679812015-07-01 13:36:18 -0700657.PHONY: am__doit
658END
Christopher Wileye8679812015-07-01 13:36:18 -0700659am__include="#"
660am__quote=
Haibo Huangb2279672019-05-31 16:12:39 -0700661# BSD make does it like this.
662echo '.include "confinc.mk" # ignored' > confmf.BSD
663# Other make implementations (GNU, Solaris 10, AIX) do it like this.
664echo 'include confinc.mk # ignored' > confmf.GNU
665_am_result=no
666for s in GNU BSD; do
667 AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
668 AS_CASE([$?:`cat confinc.out 2>/dev/null`],
669 ['0:this is the am__doit target'],
670 [AS_CASE([$s],
671 [BSD], [am__include='.include' am__quote='"'],
672 [am__include='include' am__quote=''])])
673 if test "$am__include" != "#"; then
674 _am_result="yes ($s style)"
675 break
676 fi
677done
678rm -f confinc.* confmf.*
679AC_MSG_RESULT([${_am_result}])
680AC_SUBST([am__include])])
681AC_SUBST([am__quote])])
Christopher Wileye8679812015-07-01 13:36:18 -0700682
Josh Gao83a0c9c2017-08-10 12:30:25 -0700683# Fake the existence of programs that GNU maintainers use. -*- Autoconf -*-
684
Haibo Huangf0077b82020-07-10 20:21:19 -0700685# Copyright (C) 1997-2020 Free Software Foundation, Inc.
Josh Gao83a0c9c2017-08-10 12:30:25 -0700686#
687# This file is free software; the Free Software Foundation
688# gives unlimited permission to copy and/or distribute it,
689# with or without modifications, as long as this notice is preserved.
690
Christopher Wileye8679812015-07-01 13:36:18 -0700691# AM_MISSING_PROG(NAME, PROGRAM)
692# ------------------------------
693AC_DEFUN([AM_MISSING_PROG],
694[AC_REQUIRE([AM_MISSING_HAS_RUN])
695$1=${$1-"${am_missing_run}$2"}
696AC_SUBST($1)])
697
Christopher Wileye8679812015-07-01 13:36:18 -0700698# AM_MISSING_HAS_RUN
699# ------------------
Narayan Kamathfc74cb42017-09-13 12:53:52 +0100700# Define MISSING if not defined so far and test if it is modern enough.
701# If it is, set am_missing_run to use it, otherwise, to nothing.
Christopher Wileye8679812015-07-01 13:36:18 -0700702AC_DEFUN([AM_MISSING_HAS_RUN],
703[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
704AC_REQUIRE_AUX_FILE([missing])dnl
705if test x"${MISSING+set}" != xset; then
706 case $am_aux_dir in
707 *\ * | *\ *)
708 MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
709 *)
710 MISSING="\${SHELL} $am_aux_dir/missing" ;;
711 esac
712fi
713# Use eval to expand $SHELL
Narayan Kamathfc74cb42017-09-13 12:53:52 +0100714if eval "$MISSING --is-lightweight"; then
715 am_missing_run="$MISSING "
Christopher Wileye8679812015-07-01 13:36:18 -0700716else
717 am_missing_run=
718 AC_MSG_WARN(['missing' script is too old or missing])
719fi
720])
721
722# Helper functions for option handling. -*- Autoconf -*-
723
Haibo Huangf0077b82020-07-10 20:21:19 -0700724# Copyright (C) 2001-2020 Free Software Foundation, Inc.
Christopher Wileye8679812015-07-01 13:36:18 -0700725#
726# This file is free software; the Free Software Foundation
727# gives unlimited permission to copy and/or distribute it,
728# with or without modifications, as long as this notice is preserved.
729
Christopher Wileye8679812015-07-01 13:36:18 -0700730# _AM_MANGLE_OPTION(NAME)
731# -----------------------
732AC_DEFUN([_AM_MANGLE_OPTION],
733[[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
734
735# _AM_SET_OPTION(NAME)
736# --------------------
737# Set option NAME. Presently that only means defining a flag for this option.
738AC_DEFUN([_AM_SET_OPTION],
739[m4_define(_AM_MANGLE_OPTION([$1]), [1])])
740
741# _AM_SET_OPTIONS(OPTIONS)
742# ------------------------
743# OPTIONS is a space-separated list of Automake options.
744AC_DEFUN([_AM_SET_OPTIONS],
745[m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
746
747# _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
748# -------------------------------------------
749# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
750AC_DEFUN([_AM_IF_OPTION],
751[m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
752
Haibo Huangf0077b82020-07-10 20:21:19 -0700753# Copyright (C) 1999-2020 Free Software Foundation, Inc.
Elliott Hughes2a572d12017-08-07 14:18:18 -0700754#
755# This file is free software; the Free Software Foundation
756# gives unlimited permission to copy and/or distribute it,
757# with or without modifications, as long as this notice is preserved.
Christopher Wileye8679812015-07-01 13:36:18 -0700758
Narayan Kamathfc74cb42017-09-13 12:53:52 +0100759# _AM_PROG_CC_C_O
760# ---------------
761# Like AC_PROG_CC_C_O, but changed for automake. We rewrite AC_PROG_CC
762# to automatically call this.
763AC_DEFUN([_AM_PROG_CC_C_O],
764[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
765AC_REQUIRE_AUX_FILE([compile])dnl
766AC_LANG_PUSH([C])dnl
767AC_CACHE_CHECK(
768 [whether $CC understands -c and -o together],
769 [am_cv_prog_cc_c_o],
770 [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
771 # Make sure it works both with $CC and with simple cc.
772 # Following AC_PROG_CC_C_O, we do the test twice because some
773 # compilers refuse to overwrite an existing .o file with -o,
774 # though they will create one.
775 am_cv_prog_cc_c_o=yes
776 for am_i in 1 2; do
777 if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
778 && test -f conftest2.$ac_objext; then
779 : OK
780 else
781 am_cv_prog_cc_c_o=no
782 break
783 fi
784 done
785 rm -f core conftest*
786 unset am_i])
787if test "$am_cv_prog_cc_c_o" != yes; then
788 # Losing compiler, so override with the script.
789 # FIXME: It is wrong to rewrite CC.
790 # But if we don't then we get into trouble of one sort or another.
791 # A longer-term fix would be to have automake use am__CC in this case,
792 # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
793 CC="$am_aux_dir/compile $CC"
794fi
795AC_LANG_POP([C])])
796
797# For backward compatibility.
798AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
799
Haibo Huangf0077b82020-07-10 20:21:19 -0700800# Copyright (C) 2001-2020 Free Software Foundation, Inc.
Narayan Kamathfc74cb42017-09-13 12:53:52 +0100801#
802# This file is free software; the Free Software Foundation
803# gives unlimited permission to copy and/or distribute it,
804# with or without modifications, as long as this notice is preserved.
805
806# AM_RUN_LOG(COMMAND)
807# -------------------
808# Run COMMAND, save the exit status in ac_status, and log it.
809# (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
810AC_DEFUN([AM_RUN_LOG],
811[{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
812 ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
813 ac_status=$?
814 echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
815 (exit $ac_status); }])
816
817# Check to make sure that the build environment is sane. -*- Autoconf -*-
818
Haibo Huangf0077b82020-07-10 20:21:19 -0700819# Copyright (C) 1996-2020 Free Software Foundation, Inc.
Narayan Kamathfc74cb42017-09-13 12:53:52 +0100820#
821# This file is free software; the Free Software Foundation
822# gives unlimited permission to copy and/or distribute it,
823# with or without modifications, as long as this notice is preserved.
Josh Gao83a0c9c2017-08-10 12:30:25 -0700824
Christopher Wileye8679812015-07-01 13:36:18 -0700825# AM_SANITY_CHECK
826# ---------------
827AC_DEFUN([AM_SANITY_CHECK],
828[AC_MSG_CHECKING([whether build environment is sane])
829# Reject unsafe characters in $srcdir or the absolute working directory
830# name. Accept space and tab only in the latter.
831am_lf='
832'
833case `pwd` in
834 *[[\\\"\#\$\&\'\`$am_lf]]*)
835 AC_MSG_ERROR([unsafe absolute working directory name]);;
836esac
837case $srcdir in
838 *[[\\\"\#\$\&\'\`$am_lf\ \ ]]*)
839 AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
840esac
841
842# Do 'set' in a subshell so we don't clobber the current shell's
843# arguments. Must try -L first in case configure is actually a
844# symlink; some systems play weird games with the mod time of symlinks
845# (eg FreeBSD returns the mod time of the symlink's containing
846# directory).
847if (
848 am_has_slept=no
849 for am_try in 1 2; do
850 echo "timestamp, slept: $am_has_slept" > conftest.file
851 set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
852 if test "$[*]" = "X"; then
853 # -L didn't work.
854 set X `ls -t "$srcdir/configure" conftest.file`
855 fi
856 if test "$[*]" != "X $srcdir/configure conftest.file" \
857 && test "$[*]" != "X conftest.file $srcdir/configure"; then
858
859 # If neither matched, then we have a broken ls. This can happen
860 # if, for instance, CONFIG_SHELL is bash and it inherits a
861 # broken ls alias from the environment. This has actually
862 # happened. Such a system could not be considered "sane".
863 AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken
864 alias in your environment])
865 fi
866 if test "$[2]" = conftest.file || test $am_try -eq 2; then
867 break
868 fi
869 # Just in case.
870 sleep 1
871 am_has_slept=yes
872 done
873 test "$[2]" = conftest.file
874 )
875then
876 # Ok.
877 :
878else
879 AC_MSG_ERROR([newly created file is older than distributed files!
880Check your system clock])
881fi
882AC_MSG_RESULT([yes])
883# If we didn't sleep, we still need to ensure time stamps of config.status and
884# generated files are strictly newer.
885am_sleep_pid=
886if grep 'slept: no' conftest.file >/dev/null 2>&1; then
887 ( sleep 1 ) &
888 am_sleep_pid=$!
889fi
890AC_CONFIG_COMMANDS_PRE(
891 [AC_MSG_CHECKING([that generated files are newer than configure])
892 if test -n "$am_sleep_pid"; then
893 # Hide warnings about reused PIDs.
894 wait $am_sleep_pid 2>/dev/null
895 fi
896 AC_MSG_RESULT([done])])
897rm -f conftest.file
898])
899
Haibo Huangf0077b82020-07-10 20:21:19 -0700900# Copyright (C) 2009-2020 Free Software Foundation, Inc.
Christopher Wileye8679812015-07-01 13:36:18 -0700901#
902# This file is free software; the Free Software Foundation
903# gives unlimited permission to copy and/or distribute it,
904# with or without modifications, as long as this notice is preserved.
905
Narayan Kamathfc74cb42017-09-13 12:53:52 +0100906# AM_SILENT_RULES([DEFAULT])
907# --------------------------
908# Enable less verbose build rules; with the default set to DEFAULT
909# ("yes" being less verbose, "no" or empty being verbose).
910AC_DEFUN([AM_SILENT_RULES],
911[AC_ARG_ENABLE([silent-rules], [dnl
912AS_HELP_STRING(
913 [--enable-silent-rules],
914 [less verbose build output (undo: "make V=1")])
915AS_HELP_STRING(
916 [--disable-silent-rules],
917 [verbose build output (undo: "make V=0")])dnl
918])
919case $enable_silent_rules in @%:@ (((
920 yes) AM_DEFAULT_VERBOSITY=0;;
921 no) AM_DEFAULT_VERBOSITY=1;;
922 *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
923esac
924dnl
925dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
926dnl do not support nested variable expansions.
927dnl See automake bug#9928 and bug#10237.
928am_make=${MAKE-make}
929AC_CACHE_CHECK([whether $am_make supports nested variables],
930 [am_cv_make_support_nested_variables],
931 [if AS_ECHO([['TRUE=$(BAR$(V))
932BAR0=false
933BAR1=true
934V=1
935am__doit:
936 @$(TRUE)
937.PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
938 am_cv_make_support_nested_variables=yes
939else
940 am_cv_make_support_nested_variables=no
941fi])
942if test $am_cv_make_support_nested_variables = yes; then
943 dnl Using '$V' instead of '$(V)' breaks IRIX make.
944 AM_V='$(V)'
945 AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
946else
947 AM_V=$AM_DEFAULT_VERBOSITY
948 AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
949fi
950AC_SUBST([AM_V])dnl
951AM_SUBST_NOTMAKE([AM_V])dnl
952AC_SUBST([AM_DEFAULT_V])dnl
953AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
954AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
955AM_BACKSLASH='\'
956AC_SUBST([AM_BACKSLASH])dnl
957_AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
958])
959
Haibo Huangf0077b82020-07-10 20:21:19 -0700960# Copyright (C) 2001-2020 Free Software Foundation, Inc.
Narayan Kamathfc74cb42017-09-13 12:53:52 +0100961#
962# This file is free software; the Free Software Foundation
963# gives unlimited permission to copy and/or distribute it,
964# with or without modifications, as long as this notice is preserved.
Christopher Wileye8679812015-07-01 13:36:18 -0700965
966# AM_PROG_INSTALL_STRIP
967# ---------------------
968# One issue with vendor 'install' (even GNU) is that you can't
969# specify the program used to strip binaries. This is especially
970# annoying in cross-compiling environments, where the build's strip
971# is unlikely to handle the host's binaries.
972# Fortunately install-sh will honor a STRIPPROG variable, so we
973# always use install-sh in "make install-strip", and initialize
974# STRIPPROG with the value of the STRIP variable (set by the user).
975AC_DEFUN([AM_PROG_INSTALL_STRIP],
976[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
977# Installed binaries are usually stripped using 'strip' when the user
978# run "make install-strip". However 'strip' might not be the right
979# tool to use in cross-compilation environments, therefore Automake
980# will honor the 'STRIP' environment variable to overrule this program.
981dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
982if test "$cross_compiling" != no; then
983 AC_CHECK_TOOL([STRIP], [strip], :)
984fi
985INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
986AC_SUBST([INSTALL_STRIP_PROGRAM])])
987
Haibo Huangf0077b82020-07-10 20:21:19 -0700988# Copyright (C) 2006-2020 Free Software Foundation, Inc.
Christopher Wileye8679812015-07-01 13:36:18 -0700989#
990# This file is free software; the Free Software Foundation
991# gives unlimited permission to copy and/or distribute it,
992# with or without modifications, as long as this notice is preserved.
993
Christopher Wileye8679812015-07-01 13:36:18 -0700994# _AM_SUBST_NOTMAKE(VARIABLE)
995# ---------------------------
996# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
997# This macro is traced by Automake.
998AC_DEFUN([_AM_SUBST_NOTMAKE])
999
1000# AM_SUBST_NOTMAKE(VARIABLE)
1001# --------------------------
1002# Public sister of _AM_SUBST_NOTMAKE.
1003AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
1004
1005# Check how to create a tarball. -*- Autoconf -*-
1006
Haibo Huangf0077b82020-07-10 20:21:19 -07001007# Copyright (C) 2004-2020 Free Software Foundation, Inc.
Christopher Wileye8679812015-07-01 13:36:18 -07001008#
1009# This file is free software; the Free Software Foundation
1010# gives unlimited permission to copy and/or distribute it,
1011# with or without modifications, as long as this notice is preserved.
1012
Christopher Wileye8679812015-07-01 13:36:18 -07001013# _AM_PROG_TAR(FORMAT)
1014# --------------------
1015# Check how to create a tarball in format FORMAT.
1016# FORMAT should be one of 'v7', 'ustar', or 'pax'.
1017#
1018# Substitute a variable $(am__tar) that is a command
1019# writing to stdout a FORMAT-tarball containing the directory
1020# $tardir.
1021# tardir=directory && $(am__tar) > result.tar
1022#
1023# Substitute a variable $(am__untar) that extract such
1024# a tarball read from stdin.
1025# $(am__untar) < result.tar
Narayan Kamathfc74cb42017-09-13 12:53:52 +01001026#
Christopher Wileye8679812015-07-01 13:36:18 -07001027AC_DEFUN([_AM_PROG_TAR],
1028[# Always define AMTAR for backward compatibility. Yes, it's still used
1029# in the wild :-( We should find a proper way to deprecate it ...
1030AC_SUBST([AMTAR], ['$${TAR-tar}'])
Narayan Kamathfc74cb42017-09-13 12:53:52 +01001031
1032# We'll loop over all known methods to create a tar archive until one works.
Josh Gao83a0c9c2017-08-10 12:30:25 -07001033_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
Christopher Wileye8679812015-07-01 13:36:18 -07001034
Narayan Kamathfc74cb42017-09-13 12:53:52 +01001035m4_if([$1], [v7],
1036 [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
Elliott Hughes2a572d12017-08-07 14:18:18 -07001037
Narayan Kamathfc74cb42017-09-13 12:53:52 +01001038 [m4_case([$1],
1039 [ustar],
1040 [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
1041 # There is notably a 21 bits limit for the UID and the GID. In fact,
1042 # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
1043 # and bug#13588).
1044 am_max_uid=2097151 # 2^21 - 1
1045 am_max_gid=$am_max_uid
1046 # The $UID and $GID variables are not portable, so we need to resort
1047 # to the POSIX-mandated id(1) utility. Errors in the 'id' calls
1048 # below are definitely unexpected, so allow the users to see them
1049 # (that is, avoid stderr redirection).
1050 am_uid=`id -u || echo unknown`
1051 am_gid=`id -g || echo unknown`
1052 AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
1053 if test $am_uid -le $am_max_uid; then
1054 AC_MSG_RESULT([yes])
1055 else
1056 AC_MSG_RESULT([no])
1057 _am_tools=none
1058 fi
1059 AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
1060 if test $am_gid -le $am_max_gid; then
1061 AC_MSG_RESULT([yes])
1062 else
1063 AC_MSG_RESULT([no])
1064 _am_tools=none
1065 fi],
1066
1067 [pax],
1068 [],
1069
1070 [m4_fatal([Unknown tar format])])
1071
1072 AC_MSG_CHECKING([how to create a $1 tar archive])
1073
1074 # Go ahead even if we have the value already cached. We do so because we
1075 # need to set the values for the 'am__tar' and 'am__untar' variables.
1076 _am_tools=${am_cv_prog_tar_$1-$_am_tools}
1077
1078 for _am_tool in $_am_tools; do
1079 case $_am_tool in
1080 gnutar)
1081 for _am_tar in tar gnutar gtar; do
1082 AM_RUN_LOG([$_am_tar --version]) && break
1083 done
1084 am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
1085 am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
1086 am__untar="$_am_tar -xf -"
1087 ;;
1088 plaintar)
1089 # Must skip GNU tar: if it does not support --format= it doesn't create
1090 # ustar tarball either.
1091 (tar --version) >/dev/null 2>&1 && continue
1092 am__tar='tar chf - "$$tardir"'
1093 am__tar_='tar chf - "$tardir"'
1094 am__untar='tar xf -'
1095 ;;
1096 pax)
1097 am__tar='pax -L -x $1 -w "$$tardir"'
1098 am__tar_='pax -L -x $1 -w "$tardir"'
1099 am__untar='pax -r'
1100 ;;
1101 cpio)
1102 am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
1103 am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
1104 am__untar='cpio -i -H $1 -d'
1105 ;;
1106 none)
1107 am__tar=false
1108 am__tar_=false
1109 am__untar=false
1110 ;;
1111 esac
1112
1113 # If the value was cached, stop now. We just wanted to have am__tar
1114 # and am__untar set.
1115 test -n "${am_cv_prog_tar_$1}" && break
1116
1117 # tar/untar a dummy directory, and stop if the command works.
1118 rm -rf conftest.dir
1119 mkdir conftest.dir
1120 echo GrepMe > conftest.dir/file
1121 AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
1122 rm -rf conftest.dir
1123 if test -s conftest.tar; then
1124 AM_RUN_LOG([$am__untar <conftest.tar])
1125 AM_RUN_LOG([cat conftest.dir/file])
1126 grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
1127 fi
1128 done
Christopher Wileye8679812015-07-01 13:36:18 -07001129 rm -rf conftest.dir
Christopher Wileye8679812015-07-01 13:36:18 -07001130
Narayan Kamathfc74cb42017-09-13 12:53:52 +01001131 AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
1132 AC_MSG_RESULT([$am_cv_prog_tar_$1])])
1133
Christopher Wileye8679812015-07-01 13:36:18 -07001134AC_SUBST([am__tar])
1135AC_SUBST([am__untar])
1136]) # _AM_PROG_TAR
1137
1138m4_include([m4/ac_backport_259_ssizet.m4])
1139m4_include([m4/acx_pthread.m4])
Haibo Huangf0077b82020-07-10 20:21:19 -07001140m4_include([m4/ax_check_funcs_ex.m4])
1141m4_include([m4/ax_prog_doxygen.m4])
Narayan Kamathfc74cb42017-09-13 12:53:52 +01001142m4_include([m4/libevent_openssl.m4])
Christopher Wileye8679812015-07-01 13:36:18 -07001143m4_include([m4/libtool.m4])
1144m4_include([m4/ltoptions.m4])
1145m4_include([m4/ltsugar.m4])
1146m4_include([m4/ltversion.m4])
1147m4_include([m4/lt~obsolete.m4])
Narayan Kamathfc74cb42017-09-13 12:53:52 +01001148m4_include([m4/ntp_pkg_config.m4])