aclocal.m4 52 KB

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  1. # generated automatically by aclocal 1.17 -*- Autoconf -*-
  2. # Copyright (C) 1996-2024 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) 2002-2024 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) 2011-2024 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])
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  66. AC_CHECK_TOOLS([AR], [ar lib "link -lib"], [false])
  67. : ${AR=ar}
  68. : ${ARFLAGS=cr}
  69. AC_CACHE_CHECK([the archiver ($AR) interface], [am_cv_ar_interface],
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  76. am_cv_ar_interface=ar
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  79. AC_TRY_EVAL([am_ar_try])
  80. if test "$ac_status" -eq 0; then
  81. am_cv_ar_interface=lib
  82. else
  83. am_cv_ar_interface=unknown
  84. fi
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  86. rm -f conftest.lib libconftest.a
  87. ])
  88. AC_LANG_POP([C])])
  89. case $am_cv_ar_interface in
  90. ar)
  91. ;;
  92. lib)
  93. # Microsoft lib, so override with the ar-lib wrapper script.
  94. # FIXME: It is wrong to rewrite AR.
  95. # But if we don't then we get into trouble of one sort or another.
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  98. # similar.
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  104. ;;
  105. esac
  106. AC_SUBST([AR])dnl
  107. ])
  108. # AM_AUX_DIR_EXPAND -*- Autoconf -*-
  109. # Copyright (C) 2001-2024 Free Software Foundation, Inc.
  110. #
  111. # This file is free software; the Free Software Foundation
  112. # gives unlimited permission to copy and/or distribute it,
  113. # with or without modifications, as long as this notice is preserved.
  114. # For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets
  115. # $ac_aux_dir to '$srcdir/foo'. In other projects, it is set to
  116. # '$srcdir', '$srcdir/..', or '$srcdir/../..'.
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  118. # Of course, Automake must honor this variable whenever it calls a
  119. # tool from the auxiliary directory. The problem is that $srcdir (and
  120. # therefore $ac_aux_dir as well) can be either absolute or relative,
  121. # depending on how configure is run. This is pretty annoying, since
  122. # it makes $ac_aux_dir quite unusable in subdirectories: in the top
  123. # source directory, any form will work fine, but in subdirectories a
  124. # relative path needs to be adjusted first.
  125. #
  126. # $ac_aux_dir/missing
  127. # fails when called from a subdirectory if $ac_aux_dir is relative
  128. # $top_srcdir/$ac_aux_dir/missing
  129. # fails if $ac_aux_dir is absolute,
  130. # fails when called from a subdirectory in a VPATH build with
  131. # a relative $ac_aux_dir
  132. #
  133. # The reason of the latter failure is that $top_srcdir and $ac_aux_dir
  134. # are both prefixed by $srcdir. In an in-source build this is usually
  135. # harmless because $srcdir is '.', but things will broke when you
  136. # start a VPATH build or use an absolute $srcdir.
  137. #
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  140. # am_aux_dir='\$(top_srcdir)/'`expr "$ac_aux_dir" : "$srcdir//*\(.*\)"`
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  142. # MISSING="\${SHELL} $am_aux_dir/missing"
  143. # This will work as long as MISSING is not called from configure, because
  144. # unfortunately $(top_srcdir) has no meaning in configure.
  145. # However there are other variables, like CC, which are often used in
  146. # configure, and could therefore not use this "fixed" $ac_aux_dir.
  147. #
  148. # Another solution, used here, is to always expand $ac_aux_dir to an
  149. # absolute PATH. The drawback is that using absolute paths prevent a
  150. # configured tree to be moved without reconfiguration.
  151. AC_DEFUN([AM_AUX_DIR_EXPAND],
  152. [AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
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  154. am_aux_dir=`cd "$ac_aux_dir" && pwd`
  155. ])
  156. # AM_CONDITIONAL -*- Autoconf -*-
  157. # Copyright (C) 1997-2024 Free Software Foundation, Inc.
  158. #
  159. # This file is free software; the Free Software Foundation
  160. # gives unlimited permission to copy and/or distribute it,
  161. # with or without modifications, as long as this notice is preserved.
  162. # AM_CONDITIONAL(NAME, SHELL-CONDITION)
  163. # -------------------------------------
  164. # Define a conditional.
  165. AC_DEFUN([AM_CONDITIONAL],
  166. [AC_PREREQ([2.52])dnl
  167. m4_if([$1], [TRUE], [AC_FATAL([$0: invalid condition: $1])],
  168. [$1], [FALSE], [AC_FATAL([$0: invalid condition: $1])])dnl
  169. AC_SUBST([$1_TRUE])dnl
  170. AC_SUBST([$1_FALSE])dnl
  171. _AM_SUBST_NOTMAKE([$1_TRUE])dnl
  172. _AM_SUBST_NOTMAKE([$1_FALSE])dnl
  173. m4_define([_AM_COND_VALUE_$1], [$2])dnl
  174. if $2; then
  175. $1_TRUE=
  176. $1_FALSE='#'
  177. else
  178. $1_TRUE='#'
  179. $1_FALSE=
  180. fi
  181. AC_CONFIG_COMMANDS_PRE(
  182. [if test -z "${$1_TRUE}" && test -z "${$1_FALSE}"; then
  183. AC_MSG_ERROR([[conditional "$1" was never defined.
  184. Usually this means the macro was only invoked conditionally.]])
  185. fi])])
  186. # Copyright (C) 1999-2024 Free Software Foundation, Inc.
  187. #
  188. # This file is free software; the Free Software Foundation
  189. # gives unlimited permission to copy and/or distribute it,
  190. # with or without modifications, as long as this notice is preserved.
  191. # There are a few dirty hacks below to avoid letting 'AC_PROG_CC' be
  192. # written in clear, in which case automake, when reading aclocal.m4,
  193. # will think it sees a *use*, and therefore will trigger all it's
  194. # C support machinery. Also note that it means that autoscan, seeing
  195. # CC etc. in the Makefile, will ask for an AC_PROG_CC use...
  196. # _AM_DEPENDENCIES(NAME)
  197. # ----------------------
  198. # See how the compiler implements dependency checking.
  199. # NAME is "CC", "CXX", "OBJC", "OBJCXX", "UPC", or "GJC".
  200. # We try a few techniques and use that to set a single cache variable.
  201. #
  202. # We don't AC_REQUIRE the corresponding AC_PROG_CC since the latter was
  203. # modified to invoke _AM_DEPENDENCIES(CC); we would have a circular
  204. # dependency, and given that the user is not expected to run this macro,
  205. # just rely on AC_PROG_CC.
  206. AC_DEFUN([_AM_DEPENDENCIES],
  207. [AC_REQUIRE([AM_SET_DEPDIR])dnl
  208. AC_REQUIRE([AM_OUTPUT_DEPENDENCY_COMMANDS])dnl
  209. AC_REQUIRE([AM_MAKE_INCLUDE])dnl
  210. AC_REQUIRE([AM_DEP_TRACK])dnl
  211. m4_if([$1], [CC], [depcc="$CC" am_compiler_list=],
  212. [$1], [CXX], [depcc="$CXX" am_compiler_list=],
  213. [$1], [OBJC], [depcc="$OBJC" am_compiler_list='gcc3 gcc'],
  214. [$1], [OBJCXX], [depcc="$OBJCXX" am_compiler_list='gcc3 gcc'],
  215. [$1], [UPC], [depcc="$UPC" am_compiler_list=],
  216. [$1], [GCJ], [depcc="$GCJ" am_compiler_list='gcc3 gcc'],
  217. [depcc="$$1" am_compiler_list=])
  218. AC_CACHE_CHECK([dependency style of $depcc],
  219. [am_cv_$1_dependencies_compiler_type],
  220. [if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
  221. # We make a subdir and do the tests there. Otherwise we can end up
  222. # making bogus files that we don't know about and never remove. For
  223. # instance it was reported that on HP-UX the gcc test will end up
  224. # making a dummy file named 'D' -- because '-MD' means "put the output
  225. # in D".
  226. rm -rf conftest.dir
  227. mkdir conftest.dir
  228. # Copy depcomp to subdir because otherwise we won't find it if we're
  229. # using a relative directory.
  230. cp "$am_depcomp" conftest.dir
  231. cd conftest.dir
  232. # We will build objects and dependencies in a subdirectory because
  233. # it helps to detect inapplicable dependency modes. For instance
  234. # both Tru64's cc and ICC support -MD to output dependencies as a
  235. # side effect of compilation, but ICC will put the dependencies in
  236. # the current directory while Tru64 will put them in the object
  237. # directory.
  238. mkdir sub
  239. am_cv_$1_dependencies_compiler_type=none
  240. if test "$am_compiler_list" = ""; then
  241. am_compiler_list=`sed -n ['s/^#*\([a-zA-Z0-9]*\))$/\1/p'] < ./depcomp`
  242. fi
  243. am__universal=false
  244. m4_case([$1], [CC],
  245. [case " $depcc " in #(
  246. *\ -arch\ *\ -arch\ *) am__universal=true ;;
  247. esac],
  248. [CXX],
  249. [case " $depcc " in #(
  250. *\ -arch\ *\ -arch\ *) am__universal=true ;;
  251. esac])
  252. for depmode in $am_compiler_list; do
  253. # Setup a source with many dependencies, because some compilers
  254. # like to wrap large dependency lists on column 80 (with \), and
  255. # we should not choose a depcomp mode which is confused by this.
  256. #
  257. # We need to recreate these files for each test, as the compiler may
  258. # overwrite some of them when testing with obscure command lines.
  259. # This happens at least with the AIX C compiler.
  260. : > sub/conftest.c
  261. for i in 1 2 3 4 5 6; do
  262. echo '#include "conftst'$i'.h"' >> sub/conftest.c
  263. # Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
  264. # Solaris 10 /bin/sh.
  265. echo '/* dummy */' > sub/conftst$i.h
  266. done
  267. echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
  268. # We check with '-c' and '-o' for the sake of the "dashmstdout"
  269. # mode. It turns out that the SunPro C++ compiler does not properly
  270. # handle '-M -o', and we need to detect this. Also, some Intel
  271. # versions had trouble with output in subdirs.
  272. am__obj=sub/conftest.${OBJEXT-o}
  273. am__minus_obj="-o $am__obj"
  274. case $depmode in
  275. gcc)
  276. # This depmode causes a compiler race in universal mode.
  277. test "$am__universal" = false || continue
  278. ;;
  279. nosideeffect)
  280. # After this tag, mechanisms are not by side-effect, so they'll
  281. # only be used when explicitly requested.
  282. if test "x$enable_dependency_tracking" = xyes; then
  283. continue
  284. else
  285. break
  286. fi
  287. ;;
  288. msvc7 | msvc7msys | msvisualcpp | msvcmsys)
  289. # This compiler won't grok '-c -o', but also, the minuso test has
  290. # not run yet. These depmodes are late enough in the game, and
  291. # so weak that their functioning should not be impacted.
  292. am__obj=conftest.${OBJEXT-o}
  293. am__minus_obj=
  294. ;;
  295. none) break ;;
  296. esac
  297. if depmode=$depmode \
  298. source=sub/conftest.c object=$am__obj \
  299. depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
  300. $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
  301. >/dev/null 2>conftest.err &&
  302. grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
  303. grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
  304. grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
  305. ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
  306. # icc doesn't choke on unknown options, it will just issue warnings
  307. # or remarks (even with -Werror). So we grep stderr for any message
  308. # that says an option was ignored or not supported.
  309. # When given -MP, icc 7.0 and 7.1 complain thus:
  310. # icc: Command line warning: ignoring option '-M'; no argument required
  311. # The diagnosis changed in icc 8.0:
  312. # icc: Command line remark: option '-MP' not supported
  313. if (grep 'ignoring option' conftest.err ||
  314. grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
  315. am_cv_$1_dependencies_compiler_type=$depmode
  316. break
  317. fi
  318. fi
  319. done
  320. cd ..
  321. rm -rf conftest.dir
  322. else
  323. am_cv_$1_dependencies_compiler_type=none
  324. fi
  325. ])
  326. AC_SUBST([$1DEPMODE], [depmode=$am_cv_$1_dependencies_compiler_type])
  327. AM_CONDITIONAL([am__fastdep$1], [
  328. test "x$enable_dependency_tracking" != xno \
  329. && test "$am_cv_$1_dependencies_compiler_type" = gcc3])
  330. ])
  331. # AM_SET_DEPDIR
  332. # -------------
  333. # Choose a directory name for dependency files.
  334. # This macro is AC_REQUIREd in _AM_DEPENDENCIES.
  335. AC_DEFUN([AM_SET_DEPDIR],
  336. [AC_REQUIRE([AM_SET_LEADING_DOT])dnl
  337. AC_SUBST([DEPDIR], ["${am__leading_dot}deps"])dnl
  338. ])
  339. # AM_DEP_TRACK
  340. # ------------
  341. AC_DEFUN([AM_DEP_TRACK],
  342. [AC_ARG_ENABLE([dependency-tracking], [dnl
  343. AS_HELP_STRING(
  344. [--enable-dependency-tracking],
  345. [do not reject slow dependency extractors])
  346. AS_HELP_STRING(
  347. [--disable-dependency-tracking],
  348. [speeds up one-time build])])
  349. if test "x$enable_dependency_tracking" != xno; then
  350. am_depcomp="$ac_aux_dir/depcomp"
  351. AMDEPBACKSLASH='\'
  352. am__nodep='_no'
  353. fi
  354. AM_CONDITIONAL([AMDEP], [test "x$enable_dependency_tracking" != xno])
  355. AC_SUBST([AMDEPBACKSLASH])dnl
  356. _AM_SUBST_NOTMAKE([AMDEPBACKSLASH])dnl
  357. AC_SUBST([am__nodep])dnl
  358. _AM_SUBST_NOTMAKE([am__nodep])dnl
  359. ])
  360. # Generate code to set up dependency tracking. -*- Autoconf -*-
  361. # Copyright (C) 1999-2024 Free Software Foundation, Inc.
  362. #
  363. # This file is free software; the Free Software Foundation
  364. # gives unlimited permission to copy and/or distribute it,
  365. # with or without modifications, as long as this notice is preserved.
  366. # _AM_OUTPUT_DEPENDENCY_COMMANDS
  367. # ------------------------------
  368. AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
  369. [{
  370. # Older Autoconf quotes --file arguments for eval, but not when files
  371. # are listed without --file. Let's play safe and only enable the eval
  372. # if we detect the quoting.
  373. # TODO: see whether this extra hack can be removed once we start
  374. # requiring Autoconf 2.70 or later.
  375. AS_CASE([$CONFIG_FILES],
  376. [*\'*], [eval set x "$CONFIG_FILES"],
  377. [*], [set x $CONFIG_FILES])
  378. shift
  379. # Used to flag and report bootstrapping failures.
  380. am_rc=0
  381. for am_mf
  382. do
  383. # Strip MF so we end up with the name of the file.
  384. am_mf=`AS_ECHO(["$am_mf"]) | sed -e 's/:.*$//'`
  385. # Check whether this is an Automake generated Makefile which includes
  386. # dependency-tracking related rules and includes.
  387. # Grep'ing the whole file directly is not great: AIX grep has a line
  388. # limit of 2048, but all sed's we know have understand at least 4000.
  389. sed -n 's,^am--depfiles:.*,X,p' "$am_mf" | grep X >/dev/null 2>&1 \
  390. || continue
  391. am_dirpart=`AS_DIRNAME(["$am_mf"])`
  392. am_filepart=`AS_BASENAME(["$am_mf"])`
  393. AM_RUN_LOG([cd "$am_dirpart" \
  394. && sed -e '/# am--include-marker/d' "$am_filepart" \
  395. | $MAKE -f - am--depfiles]) || am_rc=$?
  396. done
  397. if test $am_rc -ne 0; then
  398. AC_MSG_FAILURE([Something went wrong bootstrapping makefile fragments
  399. for automatic dependency tracking. If GNU make was not used, consider
  400. re-running the configure script with MAKE="gmake" (or whatever is
  401. necessary). You can also try re-running configure with the
  402. '--disable-dependency-tracking' option to at least be able to build
  403. the package (albeit without support for automatic dependency tracking).])
  404. fi
  405. AS_UNSET([am_dirpart])
  406. AS_UNSET([am_filepart])
  407. AS_UNSET([am_mf])
  408. AS_UNSET([am_rc])
  409. rm -f conftest-deps.mk
  410. }
  411. ])# _AM_OUTPUT_DEPENDENCY_COMMANDS
  412. # AM_OUTPUT_DEPENDENCY_COMMANDS
  413. # -----------------------------
  414. # This macro should only be invoked once -- use via AC_REQUIRE.
  415. #
  416. # This code is only required when automatic dependency tracking is enabled.
  417. # This creates each '.Po' and '.Plo' makefile fragment that we'll need in
  418. # order to bootstrap the dependency handling code.
  419. AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
  420. [AC_CONFIG_COMMANDS([depfiles],
  421. [test x"$AMDEP_TRUE" != x"" || _AM_OUTPUT_DEPENDENCY_COMMANDS],
  422. [AMDEP_TRUE="$AMDEP_TRUE" MAKE="${MAKE-make}"])])
  423. # Copyright (C) 1996-2024 Free Software Foundation, Inc.
  424. #
  425. # This file is free software; the Free Software Foundation
  426. # gives unlimited permission to copy and/or distribute it,
  427. # with or without modifications, as long as this notice is preserved.
  428. AC_DEFUN([AM_WITH_DMALLOC],
  429. [AC_MSG_CHECKING([if malloc debugging is wanted])
  430. AC_ARG_WITH([dmalloc],
  431. [AS_HELP_STRING([--with-dmalloc],
  432. [use dmalloc, as in http://www.dmalloc.com])],
  433. [if test "$withval" = yes; then
  434. AC_MSG_RESULT([yes])
  435. AC_DEFINE([WITH_DMALLOC], [1],
  436. [Define if using the dmalloc debugging malloc package])
  437. LIBS="$LIBS -ldmalloc"
  438. LDFLAGS="$LDFLAGS -g"
  439. else
  440. AC_MSG_RESULT([no])
  441. fi], [AC_MSG_RESULT([no])])
  442. ])
  443. # Do all the work for Automake. -*- Autoconf -*-
  444. # Copyright (C) 1996-2024 Free Software Foundation, Inc.
  445. #
  446. # This file is free software; the Free Software Foundation
  447. # gives unlimited permission to copy and/or distribute it,
  448. # with or without modifications, as long as this notice is preserved.
  449. # This macro actually does too much. Some checks are only needed if
  450. # your package does certain things. But this isn't really a big deal.
  451. dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
  452. m4_define([AC_PROG_CC],
  453. m4_defn([AC_PROG_CC])
  454. [_AM_PROG_CC_C_O
  455. ])
  456. # AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
  457. # AM_INIT_AUTOMAKE([OPTIONS])
  458. # -----------------------------------------------
  459. # The call with PACKAGE and VERSION arguments is the old style
  460. # call (pre autoconf-2.50), which is being phased out. PACKAGE
  461. # and VERSION should now be passed to AC_INIT and removed from
  462. # the call to AM_INIT_AUTOMAKE.
  463. # We support both call styles for the transition. After
  464. # the next Automake release, Autoconf can make the AC_INIT
  465. # arguments mandatory, and then we can depend on a new Autoconf
  466. # release and drop the old call support.
  467. AC_DEFUN([AM_INIT_AUTOMAKE],
  468. [AC_PREREQ([2.65])dnl
  469. m4_ifdef([_$0_ALREADY_INIT],
  470. [m4_fatal([$0 expanded multiple times
  471. ]m4_defn([_$0_ALREADY_INIT]))],
  472. [m4_define([_$0_ALREADY_INIT], m4_expansion_stack)])dnl
  473. dnl Autoconf wants to disallow AM_ names. We explicitly allow
  474. dnl the ones we care about.
  475. m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
  476. AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
  477. AC_REQUIRE([AC_PROG_INSTALL])dnl
  478. if test "`cd $srcdir && pwd`" != "`pwd`"; then
  479. # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
  480. # is not polluted with repeated "-I."
  481. AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
  482. # test to see if srcdir already configured
  483. if test -f $srcdir/config.status; then
  484. AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
  485. fi
  486. fi
  487. # test whether we have cygpath
  488. if test -z "$CYGPATH_W"; then
  489. if (cygpath --version) >/dev/null 2>/dev/null; then
  490. CYGPATH_W='cygpath -w'
  491. else
  492. CYGPATH_W=echo
  493. fi
  494. fi
  495. AC_SUBST([CYGPATH_W])
  496. # Define the identity of the package.
  497. dnl Distinguish between old-style and new-style calls.
  498. m4_ifval([$2],
  499. [AC_DIAGNOSE([obsolete],
  500. [$0: two- and three-arguments forms are deprecated.])
  501. m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
  502. AC_SUBST([PACKAGE], [$1])dnl
  503. AC_SUBST([VERSION], [$2])],
  504. [_AM_SET_OPTIONS([$1])dnl
  505. dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
  506. m4_if(
  507. m4_ifset([AC_PACKAGE_NAME], [ok]):m4_ifset([AC_PACKAGE_VERSION], [ok]),
  508. [ok:ok],,
  509. [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
  510. AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
  511. AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
  512. _AM_IF_OPTION([no-define],,
  513. [AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
  514. AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
  515. # Some tools Automake needs.
  516. AC_REQUIRE([AM_SANITY_CHECK])dnl
  517. AC_REQUIRE([AC_ARG_PROGRAM])dnl
  518. AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
  519. AM_MISSING_PROG([AUTOCONF], [autoconf])
  520. AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
  521. AM_MISSING_PROG([AUTOHEADER], [autoheader])
  522. AM_MISSING_PROG([MAKEINFO], [makeinfo])
  523. AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
  524. AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
  525. AC_REQUIRE([AC_PROG_MKDIR_P])dnl
  526. # For better backward compatibility. To be removed once Automake 1.9.x
  527. # dies out for good. For more background, see:
  528. # <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
  529. # <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
  530. AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
  531. # We need awk for the "check" target (and possibly the TAP driver). The
  532. # system "awk" is bad on some platforms.
  533. AC_REQUIRE([AC_PROG_AWK])dnl
  534. AC_REQUIRE([AC_PROG_MAKE_SET])dnl
  535. AC_REQUIRE([AM_SET_LEADING_DOT])dnl
  536. _AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
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  538. [_AM_PROG_TAR([v7])])])
  539. _AM_IF_OPTION([no-dependencies],,
  540. [AC_PROVIDE_IFELSE([AC_PROG_CC],
  541. [_AM_DEPENDENCIES([CC])],
  542. [m4_define([AC_PROG_CC],
  543. m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
  544. AC_PROVIDE_IFELSE([AC_PROG_CXX],
  545. [_AM_DEPENDENCIES([CXX])],
  546. [m4_define([AC_PROG_CXX],
  547. m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
  548. AC_PROVIDE_IFELSE([AC_PROG_OBJC],
  549. [_AM_DEPENDENCIES([OBJC])],
  550. [m4_define([AC_PROG_OBJC],
  551. m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
  552. AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
  553. [_AM_DEPENDENCIES([OBJCXX])],
  554. [m4_define([AC_PROG_OBJCXX],
  555. m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
  556. ])
  557. # Variables for tags utilities; see am/tags.am
  558. if test -z "$CTAGS"; then
  559. CTAGS=ctags
  560. fi
  561. AC_SUBST([CTAGS])
  562. if test -z "$ETAGS"; then
  563. ETAGS=etags
  564. fi
  565. AC_SUBST([ETAGS])
  566. if test -z "$CSCOPE"; then
  567. CSCOPE=cscope
  568. fi
  569. AC_SUBST([CSCOPE])
  570. AC_REQUIRE([_AM_SILENT_RULES])dnl
  571. dnl The testsuite driver may need to know about EXEEXT, so add the
  572. dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen. This
  573. dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
  574. AC_CONFIG_COMMANDS_PRE(dnl
  575. [m4_provide_if([_AM_COMPILER_EXEEXT],
  576. [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
  577. AC_REQUIRE([_AM_PROG_RM_F])
  578. AC_REQUIRE([_AM_PROG_XARGS_N])
  579. dnl The trailing newline in this macro's definition is deliberate, for
  580. dnl backward compatibility and to allow trailing 'dnl'-style comments
  581. dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
  582. ])
  583. dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion. Do not
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  585. dnl mangled by Autoconf and run in a shell conditional statement.
  586. m4_define([_AC_COMPILER_EXEEXT],
  587. m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
  588. # When config.status generates a header, we must update the stamp-h file.
  589. # This file resides in the same directory as the config header
  590. # that is generated. The stamp files are numbered to have different names.
  591. # Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
  592. # loop where config.status creates the headers, so we can generate
  593. # our stamp files there.
  594. AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
  595. [# Compute $1's index in $config_headers.
  596. _am_arg=$1
  597. _am_stamp_count=1
  598. for _am_header in $config_headers :; do
  599. case $_am_header in
  600. $_am_arg | $_am_arg:* )
  601. break ;;
  602. * )
  603. _am_stamp_count=`expr $_am_stamp_count + 1` ;;
  604. esac
  605. done
  606. echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
  607. # Copyright (C) 2001-2024 Free Software Foundation, Inc.
  608. #
  609. # This file is free software; the Free Software Foundation
  610. # gives unlimited permission to copy and/or distribute it,
  611. # with or without modifications, as long as this notice is preserved.
  612. # AM_PROG_INSTALL_SH
  613. # ------------------
  614. # Define $install_sh.
  615. AC_DEFUN([AM_PROG_INSTALL_SH],
  616. [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
  617. if test x"${install_sh+set}" != xset; then
  618. case $am_aux_dir in
  619. *\ * | *\ *)
  620. install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
  621. *)
  622. install_sh="\${SHELL} $am_aux_dir/install-sh"
  623. esac
  624. fi
  625. AC_SUBST([install_sh])])
  626. # Copyright (C) 2003-2024 Free Software Foundation, Inc.
  627. #
  628. # This file is free software; the Free Software Foundation
  629. # gives unlimited permission to copy and/or distribute it,
  630. # with or without modifications, as long as this notice is preserved.
  631. # Check whether the underlying file-system supports filenames
  632. # with a leading dot. For instance MS-DOS doesn't.
  633. AC_DEFUN([AM_SET_LEADING_DOT],
  634. [rm -rf .tst 2>/dev/null
  635. mkdir .tst 2>/dev/null
  636. if test -d .tst; then
  637. am__leading_dot=.
  638. else
  639. am__leading_dot=_
  640. fi
  641. rmdir .tst 2>/dev/null
  642. AC_SUBST([am__leading_dot])])
  643. # Add --enable-maintainer-mode option to configure. -*- Autoconf -*-
  644. # From Jim Meyering
  645. # Copyright (C) 1996-2024 Free Software Foundation, Inc.
  646. #
  647. # This file is free software; the Free Software Foundation
  648. # gives unlimited permission to copy and/or distribute it,
  649. # with or without modifications, as long as this notice is preserved.
  650. # AM_MAINTAINER_MODE([DEFAULT-MODE])
  651. # ----------------------------------
  652. # Control maintainer-specific portions of Makefiles.
  653. # Default is to disable them, unless 'enable' is passed literally.
  654. # For symmetry, 'disable' may be passed as well. Anyway, the user
  655. # can override the default with the --enable/--disable switch.
  656. AC_DEFUN([AM_MAINTAINER_MODE],
  657. [m4_case(m4_default([$1], [disable]),
  658. [enable], [m4_define([am_maintainer_other], [disable])],
  659. [disable], [m4_define([am_maintainer_other], [enable])],
  660. [m4_define([am_maintainer_other], [enable])
  661. m4_warn([syntax], [unexpected argument to AM@&t@_MAINTAINER_MODE: $1])])
  662. AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
  663. dnl maintainer-mode's default is 'disable' unless 'enable' is passed
  664. AC_ARG_ENABLE([maintainer-mode],
  665. [AS_HELP_STRING([--]am_maintainer_other[-maintainer-mode],
  666. am_maintainer_other[ make rules and dependencies not useful
  667. (and sometimes confusing) to the casual installer])],
  668. [USE_MAINTAINER_MODE=$enableval],
  669. [USE_MAINTAINER_MODE=]m4_if(am_maintainer_other, [enable], [no], [yes]))
  670. AC_MSG_RESULT([$USE_MAINTAINER_MODE])
  671. AM_CONDITIONAL([MAINTAINER_MODE], [test $USE_MAINTAINER_MODE = yes])
  672. MAINT=$MAINTAINER_MODE_TRUE
  673. AC_SUBST([MAINT])dnl
  674. ]
  675. )
  676. # Check to see how 'make' treats includes. -*- Autoconf -*-
  677. # Copyright (C) 2001-2024 Free Software Foundation, Inc.
  678. #
  679. # This file is free software; the Free Software Foundation
  680. # gives unlimited permission to copy and/or distribute it,
  681. # with or without modifications, as long as this notice is preserved.
  682. # AM_MAKE_INCLUDE()
  683. # -----------------
  684. # Check whether make has an 'include' directive that can support all
  685. # the idioms we need for our automatic dependency tracking code.
  686. AC_DEFUN([AM_MAKE_INCLUDE],
  687. [AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
  688. cat > confinc.mk << 'END'
  689. am__doit:
  690. @echo this is the am__doit target >confinc.out
  691. .PHONY: am__doit
  692. END
  693. am__include="#"
  694. am__quote=
  695. # BSD make does it like this.
  696. echo '.include "confinc.mk" # ignored' > confmf.BSD
  697. # Other make implementations (GNU, Solaris 10, AIX) do it like this.
  698. echo 'include confinc.mk # ignored' > confmf.GNU
  699. _am_result=no
  700. for s in GNU BSD; do
  701. AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
  702. AS_CASE([$?:`cat confinc.out 2>/dev/null`],
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  704. [AS_CASE([$s],
  705. [BSD], [am__include='.include' am__quote='"'],
  706. [am__include='include' am__quote=''])])
  707. if test "$am__include" != "#"; then
  708. _am_result="yes ($s style)"
  709. break
  710. fi
  711. done
  712. rm -f confinc.* confmf.*
  713. AC_MSG_RESULT([${_am_result}])
  714. AC_SUBST([am__include])])
  715. AC_SUBST([am__quote])])
  716. # Fake the existence of programs that GNU maintainers use. -*- Autoconf -*-
  717. # Copyright (C) 1997-2024 Free Software Foundation, Inc.
  718. #
  719. # This file is free software; the Free Software Foundation
  720. # gives unlimited permission to copy and/or distribute it,
  721. # with or without modifications, as long as this notice is preserved.
  722. # AM_MISSING_PROG(NAME, PROGRAM)
  723. # ------------------------------
  724. AC_DEFUN([AM_MISSING_PROG],
  725. [AC_REQUIRE([AM_MISSING_HAS_RUN])
  726. $1=${$1-"${am_missing_run}$2"}
  727. AC_SUBST($1)])
  728. # AM_MISSING_HAS_RUN
  729. # ------------------
  730. # Define MISSING if not defined so far and test if it is modern enough.
  731. # If it is, set am_missing_run to use it, otherwise, to nothing.
  732. AC_DEFUN([AM_MISSING_HAS_RUN],
  733. [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
  734. AC_REQUIRE_AUX_FILE([missing])dnl
  735. if test x"${MISSING+set}" != xset; then
  736. MISSING="\${SHELL} '$am_aux_dir/missing'"
  737. fi
  738. # Use eval to expand $SHELL
  739. if eval "$MISSING --is-lightweight"; then
  740. am_missing_run="$MISSING "
  741. else
  742. am_missing_run=
  743. AC_MSG_WARN(['missing' script is too old or missing])
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  745. ])
  746. # Helper functions for option handling. -*- Autoconf -*-
  747. # Copyright (C) 2001-2024 Free Software Foundation, Inc.
  748. #
  749. # This file is free software; the Free Software Foundation
  750. # gives unlimited permission to copy and/or distribute it,
  751. # with or without modifications, as long as this notice is preserved.
  752. # _AM_MANGLE_OPTION(NAME)
  753. # -----------------------
  754. AC_DEFUN([_AM_MANGLE_OPTION],
  755. [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
  756. # _AM_SET_OPTION(NAME)
  757. # --------------------
  758. # Set option NAME. Presently that only means defining a flag for this option.
  759. AC_DEFUN([_AM_SET_OPTION],
  760. [m4_define(_AM_MANGLE_OPTION([$1]), [1])])
  761. # _AM_SET_OPTIONS(OPTIONS)
  762. # ------------------------
  763. # OPTIONS is a space-separated list of Automake options.
  764. AC_DEFUN([_AM_SET_OPTIONS],
  765. [m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
  766. # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
  767. # -------------------------------------------
  768. # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
  769. AC_DEFUN([_AM_IF_OPTION],
  770. [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
  771. # Copyright (C) 1999-2024 Free Software Foundation, Inc.
  772. #
  773. # This file is free software; the Free Software Foundation
  774. # gives unlimited permission to copy and/or distribute it,
  775. # with or without modifications, as long as this notice is preserved.
  776. # _AM_PROG_CC_C_O
  777. # ---------------
  778. # Like AC_PROG_CC_C_O, but changed for automake. We rewrite AC_PROG_CC
  779. # to automatically call this.
  780. AC_DEFUN([_AM_PROG_CC_C_O],
  781. [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
  782. AC_REQUIRE_AUX_FILE([compile])dnl
  783. AC_LANG_PUSH([C])dnl
  784. AC_CACHE_CHECK(
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  786. [am_cv_prog_cc_c_o],
  787. [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
  788. # Make sure it works both with $CC and with simple cc.
  789. # Following AC_PROG_CC_C_O, we do the test twice because some
  790. # compilers refuse to overwrite an existing .o file with -o,
  791. # though they will create one.
  792. am_cv_prog_cc_c_o=yes
  793. for am_i in 1 2; do
  794. if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
  795. && test -f conftest2.$ac_objext; then
  796. : OK
  797. else
  798. am_cv_prog_cc_c_o=no
  799. break
  800. fi
  801. done
  802. rm -f core conftest*
  803. unset am_i])
  804. if test "$am_cv_prog_cc_c_o" != yes; then
  805. # Losing compiler, so override with the script.
  806. # FIXME: It is wrong to rewrite CC.
  807. # But if we don't then we get into trouble of one sort or another.
  808. # A longer-term fix would be to have automake use am__CC in this case,
  809. # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
  810. CC="$am_aux_dir/compile $CC"
  811. fi
  812. AC_LANG_POP([C])])
  813. # For backward compatibility.
  814. AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
  815. # Copyright (C) 2022-2024 Free Software Foundation, Inc.
  816. #
  817. # This file is free software; the Free Software Foundation
  818. # gives unlimited permission to copy and/or distribute it,
  819. # with or without modifications, as long as this notice is preserved.
  820. # _AM_PROG_RM_F
  821. # ---------------
  822. # Check whether 'rm -f' without any arguments works.
  823. # https://bugs.gnu.org/10828
  824. AC_DEFUN([_AM_PROG_RM_F],
  825. [am__rm_f_notfound=
  826. AS_IF([(rm -f && rm -fr && rm -rf) 2>/dev/null], [], [am__rm_f_notfound='""'])
  827. AC_SUBST(am__rm_f_notfound)
  828. ])
  829. # Copyright (C) 2001-2024 Free Software Foundation, Inc.
  830. #
  831. # This file is free software; the Free Software Foundation
  832. # gives unlimited permission to copy and/or distribute it,
  833. # with or without modifications, as long as this notice is preserved.
  834. # AM_RUN_LOG(COMMAND)
  835. # -------------------
  836. # Run COMMAND, save the exit status in ac_status, and log it.
  837. # (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
  838. AC_DEFUN([AM_RUN_LOG],
  839. [{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
  840. ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
  841. ac_status=$?
  842. echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
  843. (exit $ac_status); }])
  844. # Check to make sure that the build environment is sane. -*- Autoconf -*-
  845. # Copyright (C) 1996-2024 Free Software Foundation, Inc.
  846. #
  847. # This file is free software; the Free Software Foundation
  848. # gives unlimited permission to copy and/or distribute it,
  849. # with or without modifications, as long as this notice is preserved.
  850. # _AM_SLEEP_FRACTIONAL_SECONDS
  851. # ----------------------------
  852. AC_DEFUN([_AM_SLEEP_FRACTIONAL_SECONDS], [dnl
  853. AC_CACHE_CHECK([whether sleep supports fractional seconds],
  854. am_cv_sleep_fractional_seconds, [dnl
  855. AS_IF([sleep 0.001 2>/dev/null], [am_cv_sleep_fractional_seconds=yes],
  856. [am_cv_sleep_fractional_seconds=no])
  857. ])])
  858. # _AM_FILESYSTEM_TIMESTAMP_RESOLUTION
  859. # -----------------------------------
  860. # Determine the filesystem's resolution for file modification
  861. # timestamps. The coarsest we know of is FAT, with a resolution
  862. # of only two seconds, even with the most recent "exFAT" extensions.
  863. # The finest (e.g. ext4 with large inodes, XFS, ZFS) is one
  864. # nanosecond, matching clock_gettime. However, it is probably not
  865. # possible to delay execution of a shell script for less than one
  866. # millisecond, due to process creation overhead and scheduling
  867. # granularity, so we don't check for anything finer than that. (See below.)
  868. AC_DEFUN([_AM_FILESYSTEM_TIMESTAMP_RESOLUTION], [dnl
  869. AC_REQUIRE([_AM_SLEEP_FRACTIONAL_SECONDS])
  870. AC_CACHE_CHECK([filesystem timestamp resolution],
  871. am_cv_filesystem_timestamp_resolution, [dnl
  872. # Default to the worst case.
  873. am_cv_filesystem_timestamp_resolution=2
  874. # Only try to go finer than 1 sec if sleep can do it.
  875. # Don't try 1 sec, because if 0.01 sec and 0.1 sec don't work,
  876. # - 1 sec is not much of a win compared to 2 sec, and
  877. # - it takes 2 seconds to perform the test whether 1 sec works.
  878. #
  879. # Instead, just use the default 2s on platforms that have 1s resolution,
  880. # accept the extra 1s delay when using $sleep in the Automake tests, in
  881. # exchange for not incurring the 2s delay for running the test for all
  882. # packages.
  883. #
  884. am_try_resolutions=
  885. if test "$am_cv_sleep_fractional_seconds" = yes; then
  886. # Even a millisecond often causes a bunch of false positives,
  887. # so just try a hundredth of a second. The time saved between .001 and
  888. # .01 is not terribly consequential.
  889. am_try_resolutions="0.01 0.1 $am_try_resolutions"
  890. fi
  891. # In order to catch current-generation FAT out, we must *modify* files
  892. # that already exist; the *creation* timestamp is finer. Use names
  893. # that make ls -t sort them differently when they have equal
  894. # timestamps than when they have distinct timestamps, keeping
  895. # in mind that ls -t prints the *newest* file first.
  896. rm -f conftest.ts?
  897. : > conftest.ts1
  898. : > conftest.ts2
  899. : > conftest.ts3
  900. # Make sure ls -t actually works. Do 'set' in a subshell so we don't
  901. # clobber the current shell's arguments. (Outer-level square brackets
  902. # are removed by m4; they're present so that m4 does not expand
  903. # <dollar><star>; be careful, easy to get confused.)
  904. if (
  905. set X `[ls -t conftest.ts[12]]` &&
  906. {
  907. test "$[]*" != "X conftest.ts1 conftest.ts2" ||
  908. test "$[]*" != "X conftest.ts2 conftest.ts1";
  909. }
  910. ); then :; else
  911. # If neither matched, then we have a broken ls. This can happen
  912. # if, for instance, CONFIG_SHELL is bash and it inherits a
  913. # broken ls alias from the environment. This has actually
  914. # happened. Such a system could not be considered "sane".
  915. _AS_ECHO_UNQUOTED(
  916. ["Bad output from ls -t: \"`[ls -t conftest.ts[12]]`\""],
  917. [AS_MESSAGE_LOG_FD])
  918. AC_MSG_FAILURE([ls -t produces unexpected output.
  919. Make sure there is not a broken ls alias in your environment.])
  920. fi
  921. for am_try_res in $am_try_resolutions; do
  922. # Any one fine-grained sleep might happen to cross the boundary
  923. # between two values of a coarser actual resolution, but if we do
  924. # two fine-grained sleeps in a row, at least one of them will fall
  925. # entirely within a coarse interval.
  926. echo alpha > conftest.ts1
  927. sleep $am_try_res
  928. echo beta > conftest.ts2
  929. sleep $am_try_res
  930. echo gamma > conftest.ts3
  931. # We assume that 'ls -t' will make use of high-resolution
  932. # timestamps if the operating system supports them at all.
  933. if (set X `ls -t conftest.ts?` &&
  934. test "$[]2" = conftest.ts3 &&
  935. test "$[]3" = conftest.ts2 &&
  936. test "$[]4" = conftest.ts1); then
  937. #
  938. # Ok, ls -t worked. If we're at a resolution of 1 second, we're done,
  939. # because we don't need to test make.
  940. make_ok=true
  941. if test $am_try_res != 1; then
  942. # But if we've succeeded so far with a subsecond resolution, we
  943. # have one more thing to check: make. It can happen that
  944. # everything else supports the subsecond mtimes, but make doesn't;
  945. # notably on macOS, which ships make 3.81 from 2006 (the last one
  946. # released under GPLv2). https://bugs.gnu.org/68808
  947. #
  948. # We test $MAKE if it is defined in the environment, else "make".
  949. # It might get overridden later, but our hope is that in practice
  950. # it does not matter: it is the system "make" which is (by far)
  951. # the most likely to be broken, whereas if the user overrides it,
  952. # probably they did so with a better, or at least not worse, make.
  953. # https://lists.gnu.org/archive/html/automake/2024-06/msg00051.html
  954. #
  955. # Create a Makefile (real tab character here):
  956. rm -f conftest.mk
  957. echo 'conftest.ts1: conftest.ts2' >conftest.mk
  958. echo ' touch conftest.ts2' >>conftest.mk
  959. #
  960. # Now, running
  961. # touch conftest.ts1; touch conftest.ts2; make
  962. # should touch ts1 because ts2 is newer. This could happen by luck,
  963. # but most often, it will fail if make's support is insufficient. So
  964. # test for several consecutive successes.
  965. #
  966. # (We reuse conftest.ts[12] because we still want to modify existing
  967. # files, not create new ones, per above.)
  968. n=0
  969. make=${MAKE-make}
  970. until test $n -eq 3; do
  971. echo one > conftest.ts1
  972. sleep $am_try_res
  973. echo two > conftest.ts2 # ts2 should now be newer than ts1
  974. if $make -f conftest.mk | grep 'up to date' >/dev/null; then
  975. make_ok=false
  976. break # out of $n loop
  977. fi
  978. n=`expr $n + 1`
  979. done
  980. fi
  981. #
  982. if $make_ok; then
  983. # Everything we know to check worked out, so call this resolution good.
  984. am_cv_filesystem_timestamp_resolution=$am_try_res
  985. break # out of $am_try_res loop
  986. fi
  987. # Otherwise, we'll go on to check the next resolution.
  988. fi
  989. done
  990. rm -f conftest.ts?
  991. # (end _am_filesystem_timestamp_resolution)
  992. ])])
  993. # AM_SANITY_CHECK
  994. # ---------------
  995. AC_DEFUN([AM_SANITY_CHECK],
  996. [AC_REQUIRE([_AM_FILESYSTEM_TIMESTAMP_RESOLUTION])
  997. # This check should not be cached, as it may vary across builds of
  998. # different projects.
  999. AC_MSG_CHECKING([whether build environment is sane])
  1000. # Reject unsafe characters in $srcdir or the absolute working directory
  1001. # name. Accept space and tab only in the latter.
  1002. am_lf='
  1003. '
  1004. case `pwd` in
  1005. *[[\\\"\#\$\&\'\`$am_lf]]*)
  1006. AC_MSG_ERROR([unsafe absolute working directory name]);;
  1007. esac
  1008. case $srcdir in
  1009. *[[\\\"\#\$\&\'\`$am_lf\ \ ]]*)
  1010. AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
  1011. esac
  1012. # Do 'set' in a subshell so we don't clobber the current shell's
  1013. # arguments. Must try -L first in case configure is actually a
  1014. # symlink; some systems play weird games with the mod time of symlinks
  1015. # (eg FreeBSD returns the mod time of the symlink's containing
  1016. # directory).
  1017. am_build_env_is_sane=no
  1018. am_has_slept=no
  1019. rm -f conftest.file
  1020. for am_try in 1 2; do
  1021. echo "timestamp, slept: $am_has_slept" > conftest.file
  1022. if (
  1023. set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
  1024. if test "$[]*" = "X"; then
  1025. # -L didn't work.
  1026. set X `ls -t "$srcdir/configure" conftest.file`
  1027. fi
  1028. test "$[]2" = conftest.file
  1029. ); then
  1030. am_build_env_is_sane=yes
  1031. break
  1032. fi
  1033. # Just in case.
  1034. sleep "$am_cv_filesystem_timestamp_resolution"
  1035. am_has_slept=yes
  1036. done
  1037. AC_MSG_RESULT([$am_build_env_is_sane])
  1038. if test "$am_build_env_is_sane" = no; then
  1039. AC_MSG_ERROR([newly created file is older than distributed files!
  1040. Check your system clock])
  1041. fi
  1042. # If we didn't sleep, we still need to ensure time stamps of config.status and
  1043. # generated files are strictly newer.
  1044. am_sleep_pid=
  1045. AS_IF([test -e conftest.file || grep 'slept: no' conftest.file >/dev/null 2>&1],, [dnl
  1046. ( sleep "$am_cv_filesystem_timestamp_resolution" ) &
  1047. am_sleep_pid=$!
  1048. ])
  1049. AC_CONFIG_COMMANDS_PRE(
  1050. [AC_MSG_CHECKING([that generated files are newer than configure])
  1051. if test -n "$am_sleep_pid"; then
  1052. # Hide warnings about reused PIDs.
  1053. wait $am_sleep_pid 2>/dev/null
  1054. fi
  1055. AC_MSG_RESULT([done])])
  1056. rm -f conftest.file
  1057. ])
  1058. # Copyright (C) 2009-2024 Free Software Foundation, Inc.
  1059. #
  1060. # This file is free software; the Free Software Foundation
  1061. # gives unlimited permission to copy and/or distribute it,
  1062. # with or without modifications, as long as this notice is preserved.
  1063. # _AM_SILENT_RULES
  1064. # ----------------
  1065. # Enable less verbose build rules support.
  1066. AC_DEFUN([_AM_SILENT_RULES],
  1067. [AM_DEFAULT_VERBOSITY=1
  1068. AC_ARG_ENABLE([silent-rules], [dnl
  1069. AS_HELP_STRING(
  1070. [--enable-silent-rules],
  1071. [less verbose build output (undo: "make V=1")])
  1072. AS_HELP_STRING(
  1073. [--disable-silent-rules],
  1074. [verbose build output (undo: "make V=0")])dnl
  1075. ])
  1076. dnl
  1077. dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
  1078. dnl do not support nested variable expansions.
  1079. dnl See automake bug#9928 and bug#10237.
  1080. am_make=${MAKE-make}
  1081. AC_CACHE_CHECK([whether $am_make supports nested variables],
  1082. [am_cv_make_support_nested_variables],
  1083. [if AS_ECHO([['TRUE=$(BAR$(V))
  1084. BAR0=false
  1085. BAR1=true
  1086. V=1
  1087. am__doit:
  1088. @$(TRUE)
  1089. .PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
  1090. am_cv_make_support_nested_variables=yes
  1091. else
  1092. am_cv_make_support_nested_variables=no
  1093. fi])
  1094. AC_SUBST([AM_V])dnl
  1095. AM_SUBST_NOTMAKE([AM_V])dnl
  1096. AC_SUBST([AM_DEFAULT_V])dnl
  1097. AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
  1098. AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
  1099. AM_BACKSLASH='\'
  1100. AC_SUBST([AM_BACKSLASH])dnl
  1101. _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
  1102. dnl Delay evaluation of AM_DEFAULT_VERBOSITY to the end to allow multiple calls
  1103. dnl to AM_SILENT_RULES to change the default value.
  1104. AC_CONFIG_COMMANDS_PRE([dnl
  1105. case $enable_silent_rules in @%:@ (((
  1106. yes) AM_DEFAULT_VERBOSITY=0;;
  1107. no) AM_DEFAULT_VERBOSITY=1;;
  1108. esac
  1109. if test $am_cv_make_support_nested_variables = yes; then
  1110. dnl Using '$V' instead of '$(V)' breaks IRIX make.
  1111. AM_V='$(V)'
  1112. AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
  1113. else
  1114. AM_V=$AM_DEFAULT_VERBOSITY
  1115. AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
  1116. fi
  1117. ])dnl
  1118. ])
  1119. # AM_SILENT_RULES([DEFAULT])
  1120. # --------------------------
  1121. # Set the default verbosity level to DEFAULT ("yes" being less verbose, "no" or
  1122. # empty being verbose).
  1123. AC_DEFUN([AM_SILENT_RULES],
  1124. [AC_REQUIRE([_AM_SILENT_RULES])
  1125. AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1])])
  1126. # Copyright (C) 2001-2024 Free Software Foundation, Inc.
  1127. #
  1128. # This file is free software; the Free Software Foundation
  1129. # gives unlimited permission to copy and/or distribute it,
  1130. # with or without modifications, as long as this notice is preserved.
  1131. # AM_PROG_INSTALL_STRIP
  1132. # ---------------------
  1133. # One issue with vendor 'install' (even GNU) is that you can't
  1134. # specify the program used to strip binaries. This is especially
  1135. # annoying in cross-compiling environments, where the build's strip
  1136. # is unlikely to handle the host's binaries.
  1137. # Fortunately install-sh will honor a STRIPPROG variable, so we
  1138. # always use install-sh in "make install-strip", and initialize
  1139. # STRIPPROG with the value of the STRIP variable (set by the user).
  1140. AC_DEFUN([AM_PROG_INSTALL_STRIP],
  1141. [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
  1142. # Installed binaries are usually stripped using 'strip' when the user
  1143. # run "make install-strip". However 'strip' might not be the right
  1144. # tool to use in cross-compilation environments, therefore Automake
  1145. # will honor the 'STRIP' environment variable to overrule this program.
  1146. dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
  1147. if test "$cross_compiling" != no; then
  1148. AC_CHECK_TOOL([STRIP], [strip], :)
  1149. fi
  1150. INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
  1151. AC_SUBST([INSTALL_STRIP_PROGRAM])])
  1152. # Copyright (C) 2006-2024 Free Software Foundation, Inc.
  1153. #
  1154. # This file is free software; the Free Software Foundation
  1155. # gives unlimited permission to copy and/or distribute it,
  1156. # with or without modifications, as long as this notice is preserved.
  1157. # _AM_SUBST_NOTMAKE(VARIABLE)
  1158. # ---------------------------
  1159. # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
  1160. # This macro is traced by Automake.
  1161. AC_DEFUN([_AM_SUBST_NOTMAKE])
  1162. # AM_SUBST_NOTMAKE(VARIABLE)
  1163. # --------------------------
  1164. # Public sister of _AM_SUBST_NOTMAKE.
  1165. AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
  1166. # Check how to create a tarball. -*- Autoconf -*-
  1167. # Copyright (C) 2004-2024 Free Software Foundation, Inc.
  1168. #
  1169. # This file is free software; the Free Software Foundation
  1170. # gives unlimited permission to copy and/or distribute it,
  1171. # with or without modifications, as long as this notice is preserved.
  1172. # _AM_PROG_TAR(FORMAT)
  1173. # --------------------
  1174. # Check how to create a tarball in format FORMAT.
  1175. # FORMAT should be one of 'v7', 'ustar', or 'pax'.
  1176. #
  1177. # Substitute a variable $(am__tar) that is a command
  1178. # writing to stdout a FORMAT-tarball containing the directory
  1179. # $tardir.
  1180. # tardir=directory && $(am__tar) > result.tar
  1181. #
  1182. # Substitute a variable $(am__untar) that extract such
  1183. # a tarball read from stdin.
  1184. # $(am__untar) < result.tar
  1185. #
  1186. AC_DEFUN([_AM_PROG_TAR],
  1187. [# Always define AMTAR for backward compatibility. Yes, it's still used
  1188. # in the wild :-( We should find a proper way to deprecate it ...
  1189. AC_SUBST([AMTAR], ['$${TAR-tar}'])
  1190. # We'll loop over all known methods to create a tar archive until one works.
  1191. _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
  1192. m4_if([$1], [v7],
  1193. [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
  1194. [m4_case([$1],
  1195. [ustar],
  1196. [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
  1197. # There is notably a 21 bits limit for the UID and the GID. In fact,
  1198. # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
  1199. # and bug#13588).
  1200. am_max_uid=2097151 # 2^21 - 1
  1201. am_max_gid=$am_max_uid
  1202. # The $UID and $GID variables are not portable, so we need to resort
  1203. # to the POSIX-mandated id(1) utility. Errors in the 'id' calls
  1204. # below are definitely unexpected, so allow the users to see them
  1205. # (that is, avoid stderr redirection).
  1206. am_uid=`id -u || echo unknown`
  1207. am_gid=`id -g || echo unknown`
  1208. AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
  1209. if test x$am_uid = xunknown; then
  1210. AC_MSG_WARN([ancient id detected; assuming current UID is ok, but dist-ustar might not work])
  1211. elif test $am_uid -le $am_max_uid; then
  1212. AC_MSG_RESULT([yes])
  1213. else
  1214. AC_MSG_RESULT([no])
  1215. _am_tools=none
  1216. fi
  1217. AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
  1218. if test x$gm_gid = xunknown; then
  1219. AC_MSG_WARN([ancient id detected; assuming current GID is ok, but dist-ustar might not work])
  1220. elif test $am_gid -le $am_max_gid; then
  1221. AC_MSG_RESULT([yes])
  1222. else
  1223. AC_MSG_RESULT([no])
  1224. _am_tools=none
  1225. fi],
  1226. [pax],
  1227. [],
  1228. [m4_fatal([Unknown tar format])])
  1229. AC_MSG_CHECKING([how to create a $1 tar archive])
  1230. # Go ahead even if we have the value already cached. We do so because we
  1231. # need to set the values for the 'am__tar' and 'am__untar' variables.
  1232. _am_tools=${am_cv_prog_tar_$1-$_am_tools}
  1233. for _am_tool in $_am_tools; do
  1234. case $_am_tool in
  1235. gnutar)
  1236. for _am_tar in tar gnutar gtar; do
  1237. AM_RUN_LOG([$_am_tar --version]) && break
  1238. done
  1239. am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
  1240. am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
  1241. am__untar="$_am_tar -xf -"
  1242. ;;
  1243. plaintar)
  1244. # Must skip GNU tar: if it does not support --format= it doesn't create
  1245. # ustar tarball either.
  1246. (tar --version) >/dev/null 2>&1 && continue
  1247. am__tar='tar chf - "$$tardir"'
  1248. am__tar_='tar chf - "$tardir"'
  1249. am__untar='tar xf -'
  1250. ;;
  1251. pax)
  1252. am__tar='pax -L -x $1 -w "$$tardir"'
  1253. am__tar_='pax -L -x $1 -w "$tardir"'
  1254. am__untar='pax -r'
  1255. ;;
  1256. cpio)
  1257. am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
  1258. am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
  1259. am__untar='cpio -i -H $1 -d'
  1260. ;;
  1261. none)
  1262. am__tar=false
  1263. am__tar_=false
  1264. am__untar=false
  1265. ;;
  1266. esac
  1267. # If the value was cached, stop now. We just wanted to have am__tar
  1268. # and am__untar set.
  1269. test -n "${am_cv_prog_tar_$1}" && break
  1270. # tar/untar a dummy directory, and stop if the command works.
  1271. rm -rf conftest.dir
  1272. mkdir conftest.dir
  1273. echo GrepMe > conftest.dir/file
  1274. AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
  1275. rm -rf conftest.dir
  1276. if test -s conftest.tar; then
  1277. AM_RUN_LOG([$am__untar <conftest.tar])
  1278. AM_RUN_LOG([cat conftest.dir/file])
  1279. grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
  1280. fi
  1281. done
  1282. rm -rf conftest.dir
  1283. AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
  1284. AC_MSG_RESULT([$am_cv_prog_tar_$1])])
  1285. AC_SUBST([am__tar])
  1286. AC_SUBST([am__untar])
  1287. ]) # _AM_PROG_TAR
  1288. # Copyright (C) 2022-2024 Free Software Foundation, Inc.
  1289. #
  1290. # This file is free software; the Free Software Foundation
  1291. # gives unlimited permission to copy and/or distribute it,
  1292. # with or without modifications, as long as this notice is preserved.
  1293. # _AM_PROG_XARGS_N
  1294. # ----------------
  1295. # Check whether 'xargs -n' works. It should work everywhere, so the fallback
  1296. # is not optimized at all as we never expect to use it.
  1297. AC_DEFUN([_AM_PROG_XARGS_N],
  1298. [AC_CACHE_CHECK([xargs -n works], am_cv_xargs_n_works, [dnl
  1299. AS_IF([test "`echo 1 2 3 | xargs -n2 echo`" = "1 2
  1300. 3"], [am_cv_xargs_n_works=yes], [am_cv_xargs_n_works=no])])
  1301. AS_IF([test "$am_cv_xargs_n_works" = yes], [am__xargs_n='xargs -n'], [dnl
  1302. am__xargs_n='am__xargs_n () { shift; sed "s/ /\\n/g" | while read am__xargs_n_arg; do "$@" "$am__xargs_n_arg"; done; }'
  1303. ])dnl
  1304. AC_SUBST(am__xargs_n)
  1305. ])
  1306. m4_include([m4/libopts.m4])
  1307. m4_include([m4/libtool.m4])
  1308. m4_include([m4/ltoptions.m4])
  1309. m4_include([m4/ltsugar.m4])
  1310. m4_include([m4/ltversion.m4])
  1311. m4_include([m4/lt~obsolete.m4])
  1312. m4_include([m4/stdnoreturn.m4])
  1313. m4_include([acinclude.m4])