aclocal.m4 46 KB

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  1. # generated automatically by aclocal 1.16.3 -*- Autoconf -*-
  2. # Copyright (C) 1996-2020 Free Software Foundation, Inc.
  3. # This file is free software; the Free Software Foundation
  4. # gives unlimited permission to copy and/or distribute it,
  5. # with or without modifications, as long as this notice is preserved.
  6. # This program is distributed in the hope that it will be useful,
  7. # but WITHOUT ANY WARRANTY, to the extent permitted by law; without
  8. # even the implied warranty of MERCHANTABILITY or FITNESS FOR A
  9. # PARTICULAR PURPOSE.
  10. m4_ifndef([AC_CONFIG_MACRO_DIRS], [m4_defun([_AM_CONFIG_MACRO_DIRS], [])m4_defun([AC_CONFIG_MACRO_DIRS], [_AM_CONFIG_MACRO_DIRS($@)])])
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  18. # Copyright (C) 2002-2020 Free Software Foundation, Inc.
  19. #
  20. # This file is free software; the Free Software Foundation
  21. # gives unlimited permission to copy and/or distribute it,
  22. # with or without modifications, as long as this notice is preserved.
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  50. # Copyright (C) 2011-2020 Free Software Foundation, Inc.
  51. #
  52. # This file is free software; the Free Software Foundation
  53. # gives unlimited permission to copy and/or distribute it,
  54. # with or without modifications, as long as this notice is preserved.
  55. # AM_PROG_AR([ACT-IF-FAIL])
  56. # -------------------------
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  77. AC_TRY_EVAL([am_ar_try])
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  79. am_cv_ar_interface=lib
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  81. am_cv_ar_interface=unknown
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  84. rm -f conftest.lib libconftest.a
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  87. case $am_cv_ar_interface in
  88. ar)
  89. ;;
  90. lib)
  91. # Microsoft lib, so override with the ar-lib wrapper script.
  92. # FIXME: It is wrong to rewrite AR.
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  104. AC_SUBST([AR])dnl
  105. ])
  106. # Figure out how to run the assembler. -*- Autoconf -*-
  107. # Copyright (C) 2001-2020 Free Software Foundation, Inc.
  108. #
  109. # This file is free software; the Free Software Foundation
  110. # gives unlimited permission to copy and/or distribute it,
  111. # with or without modifications, as long as this notice is preserved.
  112. # AM_PROG_AS
  113. # ----------
  114. AC_DEFUN([AM_PROG_AS],
  115. [# By default we simply use the C compiler to build assembly code.
  116. AC_REQUIRE([AC_PROG_CC])
  117. test "${CCAS+set}" = set || CCAS=$CC
  118. test "${CCASFLAGS+set}" = set || CCASFLAGS=$CFLAGS
  119. AC_ARG_VAR([CCAS], [assembler compiler command (defaults to CC)])
  120. AC_ARG_VAR([CCASFLAGS], [assembler compiler flags (defaults to CFLAGS)])
  121. _AM_IF_OPTION([no-dependencies],, [_AM_DEPENDENCIES([CCAS])])dnl
  122. ])
  123. # AM_AUX_DIR_EXPAND -*- Autoconf -*-
  124. # Copyright (C) 2001-2020 Free Software Foundation, Inc.
  125. #
  126. # This file is free software; the Free Software Foundation
  127. # gives unlimited permission to copy and/or distribute it,
  128. # with or without modifications, as long as this notice is preserved.
  129. # For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets
  130. # $ac_aux_dir to '$srcdir/foo'. In other projects, it is set to
  131. # '$srcdir', '$srcdir/..', or '$srcdir/../..'.
  132. #
  133. # Of course, Automake must honor this variable whenever it calls a
  134. # tool from the auxiliary directory. The problem is that $srcdir (and
  135. # therefore $ac_aux_dir as well) can be either absolute or relative,
  136. # depending on how configure is run. This is pretty annoying, since
  137. # it makes $ac_aux_dir quite unusable in subdirectories: in the top
  138. # source directory, any form will work fine, but in subdirectories a
  139. # relative path needs to be adjusted first.
  140. #
  141. # $ac_aux_dir/missing
  142. # fails when called from a subdirectory if $ac_aux_dir is relative
  143. # $top_srcdir/$ac_aux_dir/missing
  144. # fails if $ac_aux_dir is absolute,
  145. # fails when called from a subdirectory in a VPATH build with
  146. # a relative $ac_aux_dir
  147. #
  148. # The reason of the latter failure is that $top_srcdir and $ac_aux_dir
  149. # are both prefixed by $srcdir. In an in-source build this is usually
  150. # harmless because $srcdir is '.', but things will broke when you
  151. # start a VPATH build or use an absolute $srcdir.
  152. #
  153. # So we could use something similar to $top_srcdir/$ac_aux_dir/missing,
  154. # iff we strip the leading $srcdir from $ac_aux_dir. That would be:
  155. # am_aux_dir='\$(top_srcdir)/'`expr "$ac_aux_dir" : "$srcdir//*\(.*\)"`
  156. # and then we would define $MISSING as
  157. # MISSING="\${SHELL} $am_aux_dir/missing"
  158. # This will work as long as MISSING is not called from configure, because
  159. # unfortunately $(top_srcdir) has no meaning in configure.
  160. # However there are other variables, like CC, which are often used in
  161. # configure, and could therefore not use this "fixed" $ac_aux_dir.
  162. #
  163. # Another solution, used here, is to always expand $ac_aux_dir to an
  164. # absolute PATH. The drawback is that using absolute paths prevent a
  165. # configured tree to be moved without reconfiguration.
  166. AC_DEFUN([AM_AUX_DIR_EXPAND],
  167. [AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
  168. # Expand $ac_aux_dir to an absolute path.
  169. am_aux_dir=`cd "$ac_aux_dir" && pwd`
  170. ])
  171. # AM_CONDITIONAL -*- Autoconf -*-
  172. # Copyright (C) 1997-2020 Free Software Foundation, Inc.
  173. #
  174. # This file is free software; the Free Software Foundation
  175. # gives unlimited permission to copy and/or distribute it,
  176. # with or without modifications, as long as this notice is preserved.
  177. # AM_CONDITIONAL(NAME, SHELL-CONDITION)
  178. # -------------------------------------
  179. # Define a conditional.
  180. AC_DEFUN([AM_CONDITIONAL],
  181. [AC_PREREQ([2.52])dnl
  182. m4_if([$1], [TRUE], [AC_FATAL([$0: invalid condition: $1])],
  183. [$1], [FALSE], [AC_FATAL([$0: invalid condition: $1])])dnl
  184. AC_SUBST([$1_TRUE])dnl
  185. AC_SUBST([$1_FALSE])dnl
  186. _AM_SUBST_NOTMAKE([$1_TRUE])dnl
  187. _AM_SUBST_NOTMAKE([$1_FALSE])dnl
  188. m4_define([_AM_COND_VALUE_$1], [$2])dnl
  189. if $2; then
  190. $1_TRUE=
  191. $1_FALSE='#'
  192. else
  193. $1_TRUE='#'
  194. $1_FALSE=
  195. fi
  196. AC_CONFIG_COMMANDS_PRE(
  197. [if test -z "${$1_TRUE}" && test -z "${$1_FALSE}"; then
  198. AC_MSG_ERROR([[conditional "$1" was never defined.
  199. Usually this means the macro was only invoked conditionally.]])
  200. fi])])
  201. # Copyright (C) 1999-2020 Free Software Foundation, Inc.
  202. #
  203. # This file is free software; the Free Software Foundation
  204. # gives unlimited permission to copy and/or distribute it,
  205. # with or without modifications, as long as this notice is preserved.
  206. # There are a few dirty hacks below to avoid letting 'AC_PROG_CC' be
  207. # written in clear, in which case automake, when reading aclocal.m4,
  208. # will think it sees a *use*, and therefore will trigger all it's
  209. # C support machinery. Also note that it means that autoscan, seeing
  210. # CC etc. in the Makefile, will ask for an AC_PROG_CC use...
  211. # _AM_DEPENDENCIES(NAME)
  212. # ----------------------
  213. # See how the compiler implements dependency checking.
  214. # NAME is "CC", "CXX", "OBJC", "OBJCXX", "UPC", or "GJC".
  215. # We try a few techniques and use that to set a single cache variable.
  216. #
  217. # We don't AC_REQUIRE the corresponding AC_PROG_CC since the latter was
  218. # modified to invoke _AM_DEPENDENCIES(CC); we would have a circular
  219. # dependency, and given that the user is not expected to run this macro,
  220. # just rely on AC_PROG_CC.
  221. AC_DEFUN([_AM_DEPENDENCIES],
  222. [AC_REQUIRE([AM_SET_DEPDIR])dnl
  223. AC_REQUIRE([AM_OUTPUT_DEPENDENCY_COMMANDS])dnl
  224. AC_REQUIRE([AM_MAKE_INCLUDE])dnl
  225. AC_REQUIRE([AM_DEP_TRACK])dnl
  226. m4_if([$1], [CC], [depcc="$CC" am_compiler_list=],
  227. [$1], [CXX], [depcc="$CXX" am_compiler_list=],
  228. [$1], [OBJC], [depcc="$OBJC" am_compiler_list='gcc3 gcc'],
  229. [$1], [OBJCXX], [depcc="$OBJCXX" am_compiler_list='gcc3 gcc'],
  230. [$1], [UPC], [depcc="$UPC" am_compiler_list=],
  231. [$1], [GCJ], [depcc="$GCJ" am_compiler_list='gcc3 gcc'],
  232. [depcc="$$1" am_compiler_list=])
  233. AC_CACHE_CHECK([dependency style of $depcc],
  234. [am_cv_$1_dependencies_compiler_type],
  235. [if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
  236. # We make a subdir and do the tests there. Otherwise we can end up
  237. # making bogus files that we don't know about and never remove. For
  238. # instance it was reported that on HP-UX the gcc test will end up
  239. # making a dummy file named 'D' -- because '-MD' means "put the output
  240. # in D".
  241. rm -rf conftest.dir
  242. mkdir conftest.dir
  243. # Copy depcomp to subdir because otherwise we won't find it if we're
  244. # using a relative directory.
  245. cp "$am_depcomp" conftest.dir
  246. cd conftest.dir
  247. # We will build objects and dependencies in a subdirectory because
  248. # it helps to detect inapplicable dependency modes. For instance
  249. # both Tru64's cc and ICC support -MD to output dependencies as a
  250. # side effect of compilation, but ICC will put the dependencies in
  251. # the current directory while Tru64 will put them in the object
  252. # directory.
  253. mkdir sub
  254. am_cv_$1_dependencies_compiler_type=none
  255. if test "$am_compiler_list" = ""; then
  256. am_compiler_list=`sed -n ['s/^#*\([a-zA-Z0-9]*\))$/\1/p'] < ./depcomp`
  257. fi
  258. am__universal=false
  259. m4_case([$1], [CC],
  260. [case " $depcc " in #(
  261. *\ -arch\ *\ -arch\ *) am__universal=true ;;
  262. esac],
  263. [CXX],
  264. [case " $depcc " in #(
  265. *\ -arch\ *\ -arch\ *) am__universal=true ;;
  266. esac])
  267. for depmode in $am_compiler_list; do
  268. # Setup a source with many dependencies, because some compilers
  269. # like to wrap large dependency lists on column 80 (with \), and
  270. # we should not choose a depcomp mode which is confused by this.
  271. #
  272. # We need to recreate these files for each test, as the compiler may
  273. # overwrite some of them when testing with obscure command lines.
  274. # This happens at least with the AIX C compiler.
  275. : > sub/conftest.c
  276. for i in 1 2 3 4 5 6; do
  277. echo '#include "conftst'$i'.h"' >> sub/conftest.c
  278. # Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
  279. # Solaris 10 /bin/sh.
  280. echo '/* dummy */' > sub/conftst$i.h
  281. done
  282. echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
  283. # We check with '-c' and '-o' for the sake of the "dashmstdout"
  284. # mode. It turns out that the SunPro C++ compiler does not properly
  285. # handle '-M -o', and we need to detect this. Also, some Intel
  286. # versions had trouble with output in subdirs.
  287. am__obj=sub/conftest.${OBJEXT-o}
  288. am__minus_obj="-o $am__obj"
  289. case $depmode in
  290. gcc)
  291. # This depmode causes a compiler race in universal mode.
  292. test "$am__universal" = false || continue
  293. ;;
  294. nosideeffect)
  295. # After this tag, mechanisms are not by side-effect, so they'll
  296. # only be used when explicitly requested.
  297. if test "x$enable_dependency_tracking" = xyes; then
  298. continue
  299. else
  300. break
  301. fi
  302. ;;
  303. msvc7 | msvc7msys | msvisualcpp | msvcmsys)
  304. # This compiler won't grok '-c -o', but also, the minuso test has
  305. # not run yet. These depmodes are late enough in the game, and
  306. # so weak that their functioning should not be impacted.
  307. am__obj=conftest.${OBJEXT-o}
  308. am__minus_obj=
  309. ;;
  310. none) break ;;
  311. esac
  312. if depmode=$depmode \
  313. source=sub/conftest.c object=$am__obj \
  314. depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
  315. $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
  316. >/dev/null 2>conftest.err &&
  317. grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
  318. grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
  319. grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
  320. ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
  321. # icc doesn't choke on unknown options, it will just issue warnings
  322. # or remarks (even with -Werror). So we grep stderr for any message
  323. # that says an option was ignored or not supported.
  324. # When given -MP, icc 7.0 and 7.1 complain thusly:
  325. # icc: Command line warning: ignoring option '-M'; no argument required
  326. # The diagnosis changed in icc 8.0:
  327. # icc: Command line remark: option '-MP' not supported
  328. if (grep 'ignoring option' conftest.err ||
  329. grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
  330. am_cv_$1_dependencies_compiler_type=$depmode
  331. break
  332. fi
  333. fi
  334. done
  335. cd ..
  336. rm -rf conftest.dir
  337. else
  338. am_cv_$1_dependencies_compiler_type=none
  339. fi
  340. ])
  341. AC_SUBST([$1DEPMODE], [depmode=$am_cv_$1_dependencies_compiler_type])
  342. AM_CONDITIONAL([am__fastdep$1], [
  343. test "x$enable_dependency_tracking" != xno \
  344. && test "$am_cv_$1_dependencies_compiler_type" = gcc3])
  345. ])
  346. # AM_SET_DEPDIR
  347. # -------------
  348. # Choose a directory name for dependency files.
  349. # This macro is AC_REQUIREd in _AM_DEPENDENCIES.
  350. AC_DEFUN([AM_SET_DEPDIR],
  351. [AC_REQUIRE([AM_SET_LEADING_DOT])dnl
  352. AC_SUBST([DEPDIR], ["${am__leading_dot}deps"])dnl
  353. ])
  354. # AM_DEP_TRACK
  355. # ------------
  356. AC_DEFUN([AM_DEP_TRACK],
  357. [AC_ARG_ENABLE([dependency-tracking], [dnl
  358. AS_HELP_STRING(
  359. [--enable-dependency-tracking],
  360. [do not reject slow dependency extractors])
  361. AS_HELP_STRING(
  362. [--disable-dependency-tracking],
  363. [speeds up one-time build])])
  364. if test "x$enable_dependency_tracking" != xno; then
  365. am_depcomp="$ac_aux_dir/depcomp"
  366. AMDEPBACKSLASH='\'
  367. am__nodep='_no'
  368. fi
  369. AM_CONDITIONAL([AMDEP], [test "x$enable_dependency_tracking" != xno])
  370. AC_SUBST([AMDEPBACKSLASH])dnl
  371. _AM_SUBST_NOTMAKE([AMDEPBACKSLASH])dnl
  372. AC_SUBST([am__nodep])dnl
  373. _AM_SUBST_NOTMAKE([am__nodep])dnl
  374. ])
  375. # Generate code to set up dependency tracking. -*- Autoconf -*-
  376. # Copyright (C) 1999-2020 Free Software Foundation, Inc.
  377. #
  378. # This file is free software; the Free Software Foundation
  379. # gives unlimited permission to copy and/or distribute it,
  380. # with or without modifications, as long as this notice is preserved.
  381. # _AM_OUTPUT_DEPENDENCY_COMMANDS
  382. # ------------------------------
  383. AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
  384. [{
  385. # Older Autoconf quotes --file arguments for eval, but not when files
  386. # are listed without --file. Let's play safe and only enable the eval
  387. # if we detect the quoting.
  388. # TODO: see whether this extra hack can be removed once we start
  389. # requiring Autoconf 2.70 or later.
  390. AS_CASE([$CONFIG_FILES],
  391. [*\'*], [eval set x "$CONFIG_FILES"],
  392. [*], [set x $CONFIG_FILES])
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  395. am_rc=0
  396. for am_mf
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  398. # Strip MF so we end up with the name of the file.
  399. am_mf=`AS_ECHO(["$am_mf"]) | sed -e 's/:.*$//'`
  400. # Check whether this is an Automake generated Makefile which includes
  401. # dependency-tracking related rules and includes.
  402. # Grep'ing the whole file directly is not great: AIX grep has a line
  403. # limit of 2048, but all sed's we know have understand at least 4000.
  404. sed -n 's,^am--depfiles:.*,X,p' "$am_mf" | grep X >/dev/null 2>&1 \
  405. || continue
  406. am_dirpart=`AS_DIRNAME(["$am_mf"])`
  407. am_filepart=`AS_BASENAME(["$am_mf"])`
  408. AM_RUN_LOG([cd "$am_dirpart" \
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  410. | $MAKE -f - am--depfiles]) || am_rc=$?
  411. done
  412. if test $am_rc -ne 0; then
  413. AC_MSG_FAILURE([Something went wrong bootstrapping makefile fragments
  414. for automatic dependency tracking. If GNU make was not used, consider
  415. re-running the configure script with MAKE="gmake" (or whatever is
  416. necessary). You can also try re-running configure with the
  417. '--disable-dependency-tracking' option to at least be able to build
  418. the package (albeit without support for automatic dependency tracking).])
  419. fi
  420. AS_UNSET([am_dirpart])
  421. AS_UNSET([am_filepart])
  422. AS_UNSET([am_mf])
  423. AS_UNSET([am_rc])
  424. rm -f conftest-deps.mk
  425. }
  426. ])# _AM_OUTPUT_DEPENDENCY_COMMANDS
  427. # AM_OUTPUT_DEPENDENCY_COMMANDS
  428. # -----------------------------
  429. # This macro should only be invoked once -- use via AC_REQUIRE.
  430. #
  431. # This code is only required when automatic dependency tracking is enabled.
  432. # This creates each '.Po' and '.Plo' makefile fragment that we'll need in
  433. # order to bootstrap the dependency handling code.
  434. AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
  435. [AC_CONFIG_COMMANDS([depfiles],
  436. [test x"$AMDEP_TRUE" != x"" || _AM_OUTPUT_DEPENDENCY_COMMANDS],
  437. [AMDEP_TRUE="$AMDEP_TRUE" MAKE="${MAKE-make}"])])
  438. # Do all the work for Automake. -*- Autoconf -*-
  439. # Copyright (C) 1996-2020 Free Software Foundation, Inc.
  440. #
  441. # This file is free software; the Free Software Foundation
  442. # gives unlimited permission to copy and/or distribute it,
  443. # with or without modifications, as long as this notice is preserved.
  444. # This macro actually does too much. Some checks are only needed if
  445. # your package does certain things. But this isn't really a big deal.
  446. dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
  447. m4_define([AC_PROG_CC],
  448. m4_defn([AC_PROG_CC])
  449. [_AM_PROG_CC_C_O
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  451. # AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
  452. # AM_INIT_AUTOMAKE([OPTIONS])
  453. # -----------------------------------------------
  454. # The call with PACKAGE and VERSION arguments is the old style
  455. # call (pre autoconf-2.50), which is being phased out. PACKAGE
  456. # and VERSION should now be passed to AC_INIT and removed from
  457. # the call to AM_INIT_AUTOMAKE.
  458. # We support both call styles for the transition. After
  459. # the next Automake release, Autoconf can make the AC_INIT
  460. # arguments mandatory, and then we can depend on a new Autoconf
  461. # release and drop the old call support.
  462. AC_DEFUN([AM_INIT_AUTOMAKE],
  463. [AC_PREREQ([2.65])dnl
  464. dnl Autoconf wants to disallow AM_ names. We explicitly allow
  465. dnl the ones we care about.
  466. m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
  467. AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
  468. AC_REQUIRE([AC_PROG_INSTALL])dnl
  469. if test "`cd $srcdir && pwd`" != "`pwd`"; then
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  471. # is not polluted with repeated "-I."
  472. AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
  473. # test to see if srcdir already configured
  474. if test -f $srcdir/config.status; then
  475. AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
  476. fi
  477. fi
  478. # test whether we have cygpath
  479. if test -z "$CYGPATH_W"; then
  480. if (cygpath --version) >/dev/null 2>/dev/null; then
  481. CYGPATH_W='cygpath -w'
  482. else
  483. CYGPATH_W=echo
  484. fi
  485. fi
  486. AC_SUBST([CYGPATH_W])
  487. # Define the identity of the package.
  488. dnl Distinguish between old-style and new-style calls.
  489. m4_ifval([$2],
  490. [AC_DIAGNOSE([obsolete],
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  492. m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
  493. AC_SUBST([PACKAGE], [$1])dnl
  494. AC_SUBST([VERSION], [$2])],
  495. [_AM_SET_OPTIONS([$1])dnl
  496. dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
  497. m4_if(
  498. m4_ifdef([AC_PACKAGE_NAME], [ok]):m4_ifdef([AC_PACKAGE_VERSION], [ok]),
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  500. [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
  501. AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
  502. AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
  503. _AM_IF_OPTION([no-define],,
  504. [AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
  505. AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
  506. # Some tools Automake needs.
  507. AC_REQUIRE([AM_SANITY_CHECK])dnl
  508. AC_REQUIRE([AC_ARG_PROGRAM])dnl
  509. AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
  510. AM_MISSING_PROG([AUTOCONF], [autoconf])
  511. AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
  512. AM_MISSING_PROG([AUTOHEADER], [autoheader])
  513. AM_MISSING_PROG([MAKEINFO], [makeinfo])
  514. AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
  515. AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
  516. AC_REQUIRE([AC_PROG_MKDIR_P])dnl
  517. # For better backward compatibility. To be removed once Automake 1.9.x
  518. # dies out for good. For more background, see:
  519. # <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
  520. # <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
  521. AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
  522. # We need awk for the "check" target (and possibly the TAP driver). The
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  524. AC_REQUIRE([AC_PROG_AWK])dnl
  525. AC_REQUIRE([AC_PROG_MAKE_SET])dnl
  526. AC_REQUIRE([AM_SET_LEADING_DOT])dnl
  527. _AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
  528. [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
  529. [_AM_PROG_TAR([v7])])])
  530. _AM_IF_OPTION([no-dependencies],,
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  532. [_AM_DEPENDENCIES([CC])],
  533. [m4_define([AC_PROG_CC],
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  535. AC_PROVIDE_IFELSE([AC_PROG_CXX],
  536. [_AM_DEPENDENCIES([CXX])],
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  538. m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
  539. AC_PROVIDE_IFELSE([AC_PROG_OBJC],
  540. [_AM_DEPENDENCIES([OBJC])],
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  542. m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
  543. AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
  544. [_AM_DEPENDENCIES([OBJCXX])],
  545. [m4_define([AC_PROG_OBJCXX],
  546. m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
  547. ])
  548. AC_REQUIRE([AM_SILENT_RULES])dnl
  549. dnl The testsuite driver may need to know about EXEEXT, so add the
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  552. AC_CONFIG_COMMANDS_PRE(dnl
  553. [m4_provide_if([_AM_COMPILER_EXEEXT],
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  555. # POSIX will say in a future version that running "rm -f" with no argument
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  557. # recipes. So use an aggressive probe to check that the usage we want is
  558. # actually supported "in the wild" to an acceptable degree.
  559. # See automake bug#10828.
  560. # To make any issue more visible, cause the running configure to be aborted
  561. # by default if the 'rm' program in use doesn't match our expectations; the
  562. # user can still override this though.
  563. if rm -f && rm -fr && rm -rf; then : OK; else
  564. cat >&2 <<'END'
  565. Oops!
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  568. to the behaviour of most rm programs out there, and not conforming with
  569. the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
  570. Please tell bug-automake@gnu.org about your system, including the value
  571. of your $PATH and any error possibly output before this message. This
  572. can help us improve future automake versions.
  573. END
  574. if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
  575. echo 'Configuration will proceed anyway, since you have set the' >&2
  576. echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
  577. echo >&2
  578. else
  579. cat >&2 <<'END'
  580. Aborting the configuration process, to ensure you take notice of the issue.
  581. You can download and install GNU coreutils to get an 'rm' implementation
  582. that behaves properly: <https://www.gnu.org/software/coreutils/>.
  583. If you want to complete the configuration process using your problematic
  584. 'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
  585. to "yes", and re-run configure.
  586. END
  587. AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
  588. fi
  589. fi
  590. dnl The trailing newline in this macro's definition is deliberate, for
  591. dnl backward compatibility and to allow trailing 'dnl'-style comments
  592. dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
  593. ])
  594. dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion. Do not
  595. dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
  596. dnl mangled by Autoconf and run in a shell conditional statement.
  597. m4_define([_AC_COMPILER_EXEEXT],
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  599. # When config.status generates a header, we must update the stamp-h file.
  600. # This file resides in the same directory as the config header
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  602. # Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
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  604. # our stamp files there.
  605. AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
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  607. _am_arg=$1
  608. _am_stamp_count=1
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  616. done
  617. echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
  618. # Copyright (C) 2001-2020 Free Software Foundation, Inc.
  619. #
  620. # This file is free software; the Free Software Foundation
  621. # gives unlimited permission to copy and/or distribute it,
  622. # with or without modifications, as long as this notice is preserved.
  623. # AM_PROG_INSTALL_SH
  624. # ------------------
  625. # Define $install_sh.
  626. AC_DEFUN([AM_PROG_INSTALL_SH],
  627. [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
  628. if test x"${install_sh+set}" != xset; then
  629. case $am_aux_dir in
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  632. *)
  633. install_sh="\${SHELL} $am_aux_dir/install-sh"
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  635. fi
  636. AC_SUBST([install_sh])])
  637. # Copyright (C) 2003-2020 Free Software Foundation, Inc.
  638. #
  639. # This file is free software; the Free Software Foundation
  640. # gives unlimited permission to copy and/or distribute it,
  641. # with or without modifications, as long as this notice is preserved.
  642. # Check whether the underlying file-system supports filenames
  643. # with a leading dot. For instance MS-DOS doesn't.
  644. AC_DEFUN([AM_SET_LEADING_DOT],
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  652. rmdir .tst 2>/dev/null
  653. AC_SUBST([am__leading_dot])])
  654. # Add --enable-maintainer-mode option to configure. -*- Autoconf -*-
  655. # From Jim Meyering
  656. # Copyright (C) 1996-2020 Free Software Foundation, Inc.
  657. #
  658. # This file is free software; the Free Software Foundation
  659. # gives unlimited permission to copy and/or distribute it,
  660. # with or without modifications, as long as this notice is preserved.
  661. # AM_MAINTAINER_MODE([DEFAULT-MODE])
  662. # ----------------------------------
  663. # Control maintainer-specific portions of Makefiles.
  664. # Default is to disable them, unless 'enable' is passed literally.
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  672. m4_warn([syntax], [unexpected argument to AM@&t@_MAINTAINER_MODE: $1])])
  673. AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
  674. dnl maintainer-mode's default is 'disable' unless 'enable' is passed
  675. AC_ARG_ENABLE([maintainer-mode],
  676. [AS_HELP_STRING([--]am_maintainer_other[-maintainer-mode],
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  678. (and sometimes confusing) to the casual installer])],
  679. [USE_MAINTAINER_MODE=$enableval],
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  684. AC_SUBST([MAINT])dnl
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  687. # Check to see how 'make' treats includes. -*- Autoconf -*-
  688. # Copyright (C) 2001-2020 Free Software Foundation, Inc.
  689. #
  690. # This file is free software; the Free Software Foundation
  691. # gives unlimited permission to copy and/or distribute it,
  692. # with or without modifications, as long as this notice is preserved.
  693. # AM_MAKE_INCLUDE()
  694. # -----------------
  695. # Check whether make has an 'include' directive that can support all
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  697. AC_DEFUN([AM_MAKE_INCLUDE],
  698. [AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
  699. cat > confinc.mk << 'END'
  700. am__doit:
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  704. am__include="#"
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  708. # Other make implementations (GNU, Solaris 10, AIX) do it like this.
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  718. if test "$am__include" != "#"; then
  719. _am_result="yes ($s style)"
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  723. rm -f confinc.* confmf.*
  724. AC_MSG_RESULT([${_am_result}])
  725. AC_SUBST([am__include])])
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  727. # Fake the existence of programs that GNU maintainers use. -*- Autoconf -*-
  728. # Copyright (C) 1997-2020 Free Software Foundation, Inc.
  729. #
  730. # This file is free software; the Free Software Foundation
  731. # gives unlimited permission to copy and/or distribute it,
  732. # with or without modifications, as long as this notice is preserved.
  733. # AM_MISSING_PROG(NAME, PROGRAM)
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  762. #
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  764. # gives unlimited permission to copy and/or distribute it,
  765. # with or without modifications, as long as this notice is preserved.
  766. AC_DEFUN([AM_CONFIG_HEADER],
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  779. AC_DEFUN([AM_C_PROTOTYPES],
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  781. AU_DEFUN([fp_C_PROTOTYPES], [AM_C_PROTOTYPES])
  782. # Helper functions for option handling. -*- Autoconf -*-
  783. # Copyright (C) 2001-2020 Free Software Foundation, Inc.
  784. #
  785. # This file is free software; the Free Software Foundation
  786. # gives unlimited permission to copy and/or distribute it,
  787. # with or without modifications, as long as this notice is preserved.
  788. # _AM_MANGLE_OPTION(NAME)
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  790. AC_DEFUN([_AM_MANGLE_OPTION],
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  805. AC_DEFUN([_AM_IF_OPTION],
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  807. # Copyright (C) 1999-2020 Free Software Foundation, Inc.
  808. #
  809. # This file is free software; the Free Software Foundation
  810. # gives unlimited permission to copy and/or distribute it,
  811. # with or without modifications, as long as this notice is preserved.
  812. # _AM_PROG_CC_C_O
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  818. AC_REQUIRE_AUX_FILE([compile])dnl
  819. AC_LANG_PUSH([C])dnl
  820. AC_CACHE_CHECK(
  821. [whether $CC understands -c and -o together],
  822. [am_cv_prog_cc_c_o],
  823. [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
  824. # Make sure it works both with $CC and with simple cc.
  825. # Following AC_PROG_CC_C_O, we do the test twice because some
  826. # compilers refuse to overwrite an existing .o file with -o,
  827. # though they will create one.
  828. am_cv_prog_cc_c_o=yes
  829. for am_i in 1 2; do
  830. if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
  831. && test -f conftest2.$ac_objext; then
  832. : OK
  833. else
  834. am_cv_prog_cc_c_o=no
  835. break
  836. fi
  837. done
  838. rm -f core conftest*
  839. unset am_i])
  840. if test "$am_cv_prog_cc_c_o" != yes; then
  841. # Losing compiler, so override with the script.
  842. # FIXME: It is wrong to rewrite CC.
  843. # But if we don't then we get into trouble of one sort or another.
  844. # A longer-term fix would be to have automake use am__CC in this case,
  845. # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
  846. CC="$am_aux_dir/compile $CC"
  847. fi
  848. AC_LANG_POP([C])])
  849. # For backward compatibility.
  850. AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
  851. # Copyright (C) 2001-2020 Free Software Foundation, Inc.
  852. #
  853. # This file is free software; the Free Software Foundation
  854. # gives unlimited permission to copy and/or distribute it,
  855. # with or without modifications, as long as this notice is preserved.
  856. # AM_RUN_LOG(COMMAND)
  857. # -------------------
  858. # Run COMMAND, save the exit status in ac_status, and log it.
  859. # (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
  860. AC_DEFUN([AM_RUN_LOG],
  861. [{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
  862. ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
  863. ac_status=$?
  864. echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
  865. (exit $ac_status); }])
  866. # Check to make sure that the build environment is sane. -*- Autoconf -*-
  867. # Copyright (C) 1996-2020 Free Software Foundation, Inc.
  868. #
  869. # This file is free software; the Free Software Foundation
  870. # gives unlimited permission to copy and/or distribute it,
  871. # with or without modifications, as long as this notice is preserved.
  872. # AM_SANITY_CHECK
  873. # ---------------
  874. AC_DEFUN([AM_SANITY_CHECK],
  875. [AC_MSG_CHECKING([whether build environment is sane])
  876. # Reject unsafe characters in $srcdir or the absolute working directory
  877. # name. Accept space and tab only in the latter.
  878. am_lf='
  879. '
  880. case `pwd` in
  881. *[[\\\"\#\$\&\'\`$am_lf]]*)
  882. AC_MSG_ERROR([unsafe absolute working directory name]);;
  883. esac
  884. case $srcdir in
  885. *[[\\\"\#\$\&\'\`$am_lf\ \ ]]*)
  886. AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
  887. esac
  888. # Do 'set' in a subshell so we don't clobber the current shell's
  889. # arguments. Must try -L first in case configure is actually a
  890. # symlink; some systems play weird games with the mod time of symlinks
  891. # (eg FreeBSD returns the mod time of the symlink's containing
  892. # directory).
  893. if (
  894. am_has_slept=no
  895. for am_try in 1 2; do
  896. echo "timestamp, slept: $am_has_slept" > conftest.file
  897. set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
  898. if test "$[*]" = "X"; then
  899. # -L didn't work.
  900. set X `ls -t "$srcdir/configure" conftest.file`
  901. fi
  902. if test "$[*]" != "X $srcdir/configure conftest.file" \
  903. && test "$[*]" != "X conftest.file $srcdir/configure"; then
  904. # If neither matched, then we have a broken ls. This can happen
  905. # if, for instance, CONFIG_SHELL is bash and it inherits a
  906. # broken ls alias from the environment. This has actually
  907. # happened. Such a system could not be considered "sane".
  908. AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken
  909. alias in your environment])
  910. fi
  911. if test "$[2]" = conftest.file || test $am_try -eq 2; then
  912. break
  913. fi
  914. # Just in case.
  915. sleep 1
  916. am_has_slept=yes
  917. done
  918. test "$[2]" = conftest.file
  919. )
  920. then
  921. # Ok.
  922. :
  923. else
  924. AC_MSG_ERROR([newly created file is older than distributed files!
  925. Check your system clock])
  926. fi
  927. AC_MSG_RESULT([yes])
  928. # If we didn't sleep, we still need to ensure time stamps of config.status and
  929. # generated files are strictly newer.
  930. am_sleep_pid=
  931. if grep 'slept: no' conftest.file >/dev/null 2>&1; then
  932. ( sleep 1 ) &
  933. am_sleep_pid=$!
  934. fi
  935. AC_CONFIG_COMMANDS_PRE(
  936. [AC_MSG_CHECKING([that generated files are newer than configure])
  937. if test -n "$am_sleep_pid"; then
  938. # Hide warnings about reused PIDs.
  939. wait $am_sleep_pid 2>/dev/null
  940. fi
  941. AC_MSG_RESULT([done])])
  942. rm -f conftest.file
  943. ])
  944. # Copyright (C) 2009-2020 Free Software Foundation, Inc.
  945. #
  946. # This file is free software; the Free Software Foundation
  947. # gives unlimited permission to copy and/or distribute it,
  948. # with or without modifications, as long as this notice is preserved.
  949. # AM_SILENT_RULES([DEFAULT])
  950. # --------------------------
  951. # Enable less verbose build rules; with the default set to DEFAULT
  952. # ("yes" being less verbose, "no" or empty being verbose).
  953. AC_DEFUN([AM_SILENT_RULES],
  954. [AC_ARG_ENABLE([silent-rules], [dnl
  955. AS_HELP_STRING(
  956. [--enable-silent-rules],
  957. [less verbose build output (undo: "make V=1")])
  958. AS_HELP_STRING(
  959. [--disable-silent-rules],
  960. [verbose build output (undo: "make V=0")])dnl
  961. ])
  962. case $enable_silent_rules in @%:@ (((
  963. yes) AM_DEFAULT_VERBOSITY=0;;
  964. no) AM_DEFAULT_VERBOSITY=1;;
  965. *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
  966. esac
  967. dnl
  968. dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
  969. dnl do not support nested variable expansions.
  970. dnl See automake bug#9928 and bug#10237.
  971. am_make=${MAKE-make}
  972. AC_CACHE_CHECK([whether $am_make supports nested variables],
  973. [am_cv_make_support_nested_variables],
  974. [if AS_ECHO([['TRUE=$(BAR$(V))
  975. BAR0=false
  976. BAR1=true
  977. V=1
  978. am__doit:
  979. @$(TRUE)
  980. .PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
  981. am_cv_make_support_nested_variables=yes
  982. else
  983. am_cv_make_support_nested_variables=no
  984. fi])
  985. if test $am_cv_make_support_nested_variables = yes; then
  986. dnl Using '$V' instead of '$(V)' breaks IRIX make.
  987. AM_V='$(V)'
  988. AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
  989. else
  990. AM_V=$AM_DEFAULT_VERBOSITY
  991. AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
  992. fi
  993. AC_SUBST([AM_V])dnl
  994. AM_SUBST_NOTMAKE([AM_V])dnl
  995. AC_SUBST([AM_DEFAULT_V])dnl
  996. AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
  997. AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
  998. AM_BACKSLASH='\'
  999. AC_SUBST([AM_BACKSLASH])dnl
  1000. _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
  1001. ])
  1002. # Copyright (C) 2001-2020 Free Software Foundation, Inc.
  1003. #
  1004. # This file is free software; the Free Software Foundation
  1005. # gives unlimited permission to copy and/or distribute it,
  1006. # with or without modifications, as long as this notice is preserved.
  1007. # AM_PROG_INSTALL_STRIP
  1008. # ---------------------
  1009. # One issue with vendor 'install' (even GNU) is that you can't
  1010. # specify the program used to strip binaries. This is especially
  1011. # annoying in cross-compiling environments, where the build's strip
  1012. # is unlikely to handle the host's binaries.
  1013. # Fortunately install-sh will honor a STRIPPROG variable, so we
  1014. # always use install-sh in "make install-strip", and initialize
  1015. # STRIPPROG with the value of the STRIP variable (set by the user).
  1016. AC_DEFUN([AM_PROG_INSTALL_STRIP],
  1017. [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
  1018. # Installed binaries are usually stripped using 'strip' when the user
  1019. # run "make install-strip". However 'strip' might not be the right
  1020. # tool to use in cross-compilation environments, therefore Automake
  1021. # will honor the 'STRIP' environment variable to overrule this program.
  1022. dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
  1023. if test "$cross_compiling" != no; then
  1024. AC_CHECK_TOOL([STRIP], [strip], :)
  1025. fi
  1026. INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
  1027. AC_SUBST([INSTALL_STRIP_PROGRAM])])
  1028. # Copyright (C) 2006-2020 Free Software Foundation, Inc.
  1029. #
  1030. # This file is free software; the Free Software Foundation
  1031. # gives unlimited permission to copy and/or distribute it,
  1032. # with or without modifications, as long as this notice is preserved.
  1033. # _AM_SUBST_NOTMAKE(VARIABLE)
  1034. # ---------------------------
  1035. # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
  1036. # This macro is traced by Automake.
  1037. AC_DEFUN([_AM_SUBST_NOTMAKE])
  1038. # AM_SUBST_NOTMAKE(VARIABLE)
  1039. # --------------------------
  1040. # Public sister of _AM_SUBST_NOTMAKE.
  1041. AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
  1042. # Check how to create a tarball. -*- Autoconf -*-
  1043. # Copyright (C) 2004-2020 Free Software Foundation, Inc.
  1044. #
  1045. # This file is free software; the Free Software Foundation
  1046. # gives unlimited permission to copy and/or distribute it,
  1047. # with or without modifications, as long as this notice is preserved.
  1048. # _AM_PROG_TAR(FORMAT)
  1049. # --------------------
  1050. # Check how to create a tarball in format FORMAT.
  1051. # FORMAT should be one of 'v7', 'ustar', or 'pax'.
  1052. #
  1053. # Substitute a variable $(am__tar) that is a command
  1054. # writing to stdout a FORMAT-tarball containing the directory
  1055. # $tardir.
  1056. # tardir=directory && $(am__tar) > result.tar
  1057. #
  1058. # Substitute a variable $(am__untar) that extract such
  1059. # a tarball read from stdin.
  1060. # $(am__untar) < result.tar
  1061. #
  1062. AC_DEFUN([_AM_PROG_TAR],
  1063. [# Always define AMTAR for backward compatibility. Yes, it's still used
  1064. # in the wild :-( We should find a proper way to deprecate it ...
  1065. AC_SUBST([AMTAR], ['$${TAR-tar}'])
  1066. # We'll loop over all known methods to create a tar archive until one works.
  1067. _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
  1068. m4_if([$1], [v7],
  1069. [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
  1070. [m4_case([$1],
  1071. [ustar],
  1072. [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
  1073. # There is notably a 21 bits limit for the UID and the GID. In fact,
  1074. # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
  1075. # and bug#13588).
  1076. am_max_uid=2097151 # 2^21 - 1
  1077. am_max_gid=$am_max_uid
  1078. # The $UID and $GID variables are not portable, so we need to resort
  1079. # to the POSIX-mandated id(1) utility. Errors in the 'id' calls
  1080. # below are definitely unexpected, so allow the users to see them
  1081. # (that is, avoid stderr redirection).
  1082. am_uid=`id -u || echo unknown`
  1083. am_gid=`id -g || echo unknown`
  1084. AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
  1085. if test $am_uid -le $am_max_uid; then
  1086. AC_MSG_RESULT([yes])
  1087. else
  1088. AC_MSG_RESULT([no])
  1089. _am_tools=none
  1090. fi
  1091. AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
  1092. if test $am_gid -le $am_max_gid; then
  1093. AC_MSG_RESULT([yes])
  1094. else
  1095. AC_MSG_RESULT([no])
  1096. _am_tools=none
  1097. fi],
  1098. [pax],
  1099. [],
  1100. [m4_fatal([Unknown tar format])])
  1101. AC_MSG_CHECKING([how to create a $1 tar archive])
  1102. # Go ahead even if we have the value already cached. We do so because we
  1103. # need to set the values for the 'am__tar' and 'am__untar' variables.
  1104. _am_tools=${am_cv_prog_tar_$1-$_am_tools}
  1105. for _am_tool in $_am_tools; do
  1106. case $_am_tool in
  1107. gnutar)
  1108. for _am_tar in tar gnutar gtar; do
  1109. AM_RUN_LOG([$_am_tar --version]) && break
  1110. done
  1111. am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
  1112. am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
  1113. am__untar="$_am_tar -xf -"
  1114. ;;
  1115. plaintar)
  1116. # Must skip GNU tar: if it does not support --format= it doesn't create
  1117. # ustar tarball either.
  1118. (tar --version) >/dev/null 2>&1 && continue
  1119. am__tar='tar chf - "$$tardir"'
  1120. am__tar_='tar chf - "$tardir"'
  1121. am__untar='tar xf -'
  1122. ;;
  1123. pax)
  1124. am__tar='pax -L -x $1 -w "$$tardir"'
  1125. am__tar_='pax -L -x $1 -w "$tardir"'
  1126. am__untar='pax -r'
  1127. ;;
  1128. cpio)
  1129. am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
  1130. am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
  1131. am__untar='cpio -i -H $1 -d'
  1132. ;;
  1133. none)
  1134. am__tar=false
  1135. am__tar_=false
  1136. am__untar=false
  1137. ;;
  1138. esac
  1139. # If the value was cached, stop now. We just wanted to have am__tar
  1140. # and am__untar set.
  1141. test -n "${am_cv_prog_tar_$1}" && break
  1142. # tar/untar a dummy directory, and stop if the command works.
  1143. rm -rf conftest.dir
  1144. mkdir conftest.dir
  1145. echo GrepMe > conftest.dir/file
  1146. AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
  1147. rm -rf conftest.dir
  1148. if test -s conftest.tar; then
  1149. AM_RUN_LOG([$am__untar <conftest.tar])
  1150. AM_RUN_LOG([cat conftest.dir/file])
  1151. grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
  1152. fi
  1153. done
  1154. rm -rf conftest.dir
  1155. AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
  1156. AC_MSG_RESULT([$am_cv_prog_tar_$1])])
  1157. AC_SUBST([am__tar])
  1158. AC_SUBST([am__untar])
  1159. ]) # _AM_PROG_TAR
  1160. m4_include([m4/ax_append_compile_flags.m4])
  1161. m4_include([m4/ax_append_flag.m4])
  1162. m4_include([m4/ax_check_compile_flag.m4])
  1163. m4_include([m4/ax_check_define.m4])
  1164. m4_include([m4/ax_cxx_compile_stdcxx.m4])
  1165. m4_include([m4/ax_pthread.m4])
  1166. m4_include([m4/ax_require_defined.m4])