aclocal.m4 43 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.
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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.
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  79. am_cv_ar_interface=lib
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  81. am_cv_ar_interface=unknown
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  87. case $am_cv_ar_interface in
  88. ar)
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  90. lib)
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  106. # AM_AUX_DIR_EXPAND -*- 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. # For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets
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  123. #
  124. # $ac_aux_dir/missing
  125. # fails when called from a subdirectory if $ac_aux_dir is relative
  126. # $top_srcdir/$ac_aux_dir/missing
  127. # fails if $ac_aux_dir is absolute,
  128. # fails when called from a subdirectory in a VPATH build with
  129. # a relative $ac_aux_dir
  130. #
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  132. # are both prefixed by $srcdir. In an in-source build this is usually
  133. # harmless because $srcdir is '.', but things will broke when you
  134. # start a VPATH build or use an absolute $srcdir.
  135. #
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  142. # unfortunately $(top_srcdir) has no meaning in configure.
  143. # However there are other variables, like CC, which are often used in
  144. # configure, and could therefore not use this "fixed" $ac_aux_dir.
  145. #
  146. # Another solution, used here, is to always expand $ac_aux_dir to an
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  148. # configured tree to be moved without reconfiguration.
  149. AC_DEFUN([AM_AUX_DIR_EXPAND],
  150. [AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
  151. # Expand $ac_aux_dir to an absolute path.
  152. am_aux_dir=`cd "$ac_aux_dir" && pwd`
  153. ])
  154. # AM_CONDITIONAL -*- Autoconf -*-
  155. # Copyright (C) 1997-2020 Free Software Foundation, Inc.
  156. #
  157. # This file is free software; the Free Software Foundation
  158. # gives unlimited permission to copy and/or distribute it,
  159. # with or without modifications, as long as this notice is preserved.
  160. # AM_CONDITIONAL(NAME, SHELL-CONDITION)
  161. # -------------------------------------
  162. # Define a conditional.
  163. AC_DEFUN([AM_CONDITIONAL],
  164. [AC_PREREQ([2.52])dnl
  165. m4_if([$1], [TRUE], [AC_FATAL([$0: invalid condition: $1])],
  166. [$1], [FALSE], [AC_FATAL([$0: invalid condition: $1])])dnl
  167. AC_SUBST([$1_TRUE])dnl
  168. AC_SUBST([$1_FALSE])dnl
  169. _AM_SUBST_NOTMAKE([$1_TRUE])dnl
  170. _AM_SUBST_NOTMAKE([$1_FALSE])dnl
  171. m4_define([_AM_COND_VALUE_$1], [$2])dnl
  172. if $2; then
  173. $1_TRUE=
  174. $1_FALSE='#'
  175. else
  176. $1_TRUE='#'
  177. $1_FALSE=
  178. fi
  179. AC_CONFIG_COMMANDS_PRE(
  180. [if test -z "${$1_TRUE}" && test -z "${$1_FALSE}"; then
  181. AC_MSG_ERROR([[conditional "$1" was never defined.
  182. Usually this means the macro was only invoked conditionally.]])
  183. fi])])
  184. # Copyright (C) 1999-2020 Free Software Foundation, Inc.
  185. #
  186. # This file is free software; the Free Software Foundation
  187. # gives unlimited permission to copy and/or distribute it,
  188. # with or without modifications, as long as this notice is preserved.
  189. # There are a few dirty hacks below to avoid letting 'AC_PROG_CC' be
  190. # written in clear, in which case automake, when reading aclocal.m4,
  191. # will think it sees a *use*, and therefore will trigger all it's
  192. # C support machinery. Also note that it means that autoscan, seeing
  193. # CC etc. in the Makefile, will ask for an AC_PROG_CC use...
  194. # _AM_DEPENDENCIES(NAME)
  195. # ----------------------
  196. # See how the compiler implements dependency checking.
  197. # NAME is "CC", "CXX", "OBJC", "OBJCXX", "UPC", or "GJC".
  198. # We try a few techniques and use that to set a single cache variable.
  199. #
  200. # We don't AC_REQUIRE the corresponding AC_PROG_CC since the latter was
  201. # modified to invoke _AM_DEPENDENCIES(CC); we would have a circular
  202. # dependency, and given that the user is not expected to run this macro,
  203. # just rely on AC_PROG_CC.
  204. AC_DEFUN([_AM_DEPENDENCIES],
  205. [AC_REQUIRE([AM_SET_DEPDIR])dnl
  206. AC_REQUIRE([AM_OUTPUT_DEPENDENCY_COMMANDS])dnl
  207. AC_REQUIRE([AM_MAKE_INCLUDE])dnl
  208. AC_REQUIRE([AM_DEP_TRACK])dnl
  209. m4_if([$1], [CC], [depcc="$CC" am_compiler_list=],
  210. [$1], [CXX], [depcc="$CXX" am_compiler_list=],
  211. [$1], [OBJC], [depcc="$OBJC" am_compiler_list='gcc3 gcc'],
  212. [$1], [OBJCXX], [depcc="$OBJCXX" am_compiler_list='gcc3 gcc'],
  213. [$1], [UPC], [depcc="$UPC" am_compiler_list=],
  214. [$1], [GCJ], [depcc="$GCJ" am_compiler_list='gcc3 gcc'],
  215. [depcc="$$1" am_compiler_list=])
  216. AC_CACHE_CHECK([dependency style of $depcc],
  217. [am_cv_$1_dependencies_compiler_type],
  218. [if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
  219. # We make a subdir and do the tests there. Otherwise we can end up
  220. # making bogus files that we don't know about and never remove. For
  221. # instance it was reported that on HP-UX the gcc test will end up
  222. # making a dummy file named 'D' -- because '-MD' means "put the output
  223. # in D".
  224. rm -rf conftest.dir
  225. mkdir conftest.dir
  226. # Copy depcomp to subdir because otherwise we won't find it if we're
  227. # using a relative directory.
  228. cp "$am_depcomp" conftest.dir
  229. cd conftest.dir
  230. # We will build objects and dependencies in a subdirectory because
  231. # it helps to detect inapplicable dependency modes. For instance
  232. # both Tru64's cc and ICC support -MD to output dependencies as a
  233. # side effect of compilation, but ICC will put the dependencies in
  234. # the current directory while Tru64 will put them in the object
  235. # directory.
  236. mkdir sub
  237. am_cv_$1_dependencies_compiler_type=none
  238. if test "$am_compiler_list" = ""; then
  239. am_compiler_list=`sed -n ['s/^#*\([a-zA-Z0-9]*\))$/\1/p'] < ./depcomp`
  240. fi
  241. am__universal=false
  242. m4_case([$1], [CC],
  243. [case " $depcc " in #(
  244. *\ -arch\ *\ -arch\ *) am__universal=true ;;
  245. esac],
  246. [CXX],
  247. [case " $depcc " in #(
  248. *\ -arch\ *\ -arch\ *) am__universal=true ;;
  249. esac])
  250. for depmode in $am_compiler_list; do
  251. # Setup a source with many dependencies, because some compilers
  252. # like to wrap large dependency lists on column 80 (with \), and
  253. # we should not choose a depcomp mode which is confused by this.
  254. #
  255. # We need to recreate these files for each test, as the compiler may
  256. # overwrite some of them when testing with obscure command lines.
  257. # This happens at least with the AIX C compiler.
  258. : > sub/conftest.c
  259. for i in 1 2 3 4 5 6; do
  260. echo '#include "conftst'$i'.h"' >> sub/conftest.c
  261. # Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
  262. # Solaris 10 /bin/sh.
  263. echo '/* dummy */' > sub/conftst$i.h
  264. done
  265. echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
  266. # We check with '-c' and '-o' for the sake of the "dashmstdout"
  267. # mode. It turns out that the SunPro C++ compiler does not properly
  268. # handle '-M -o', and we need to detect this. Also, some Intel
  269. # versions had trouble with output in subdirs.
  270. am__obj=sub/conftest.${OBJEXT-o}
  271. am__minus_obj="-o $am__obj"
  272. case $depmode in
  273. gcc)
  274. # This depmode causes a compiler race in universal mode.
  275. test "$am__universal" = false || continue
  276. ;;
  277. nosideeffect)
  278. # After this tag, mechanisms are not by side-effect, so they'll
  279. # only be used when explicitly requested.
  280. if test "x$enable_dependency_tracking" = xyes; then
  281. continue
  282. else
  283. break
  284. fi
  285. ;;
  286. msvc7 | msvc7msys | msvisualcpp | msvcmsys)
  287. # This compiler won't grok '-c -o', but also, the minuso test has
  288. # not run yet. These depmodes are late enough in the game, and
  289. # so weak that their functioning should not be impacted.
  290. am__obj=conftest.${OBJEXT-o}
  291. am__minus_obj=
  292. ;;
  293. none) break ;;
  294. esac
  295. if depmode=$depmode \
  296. source=sub/conftest.c object=$am__obj \
  297. depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
  298. $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
  299. >/dev/null 2>conftest.err &&
  300. grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
  301. grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
  302. grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
  303. ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
  304. # icc doesn't choke on unknown options, it will just issue warnings
  305. # or remarks (even with -Werror). So we grep stderr for any message
  306. # that says an option was ignored or not supported.
  307. # When given -MP, icc 7.0 and 7.1 complain thusly:
  308. # icc: Command line warning: ignoring option '-M'; no argument required
  309. # The diagnosis changed in icc 8.0:
  310. # icc: Command line remark: option '-MP' not supported
  311. if (grep 'ignoring option' conftest.err ||
  312. grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
  313. am_cv_$1_dependencies_compiler_type=$depmode
  314. break
  315. fi
  316. fi
  317. done
  318. cd ..
  319. rm -rf conftest.dir
  320. else
  321. am_cv_$1_dependencies_compiler_type=none
  322. fi
  323. ])
  324. AC_SUBST([$1DEPMODE], [depmode=$am_cv_$1_dependencies_compiler_type])
  325. AM_CONDITIONAL([am__fastdep$1], [
  326. test "x$enable_dependency_tracking" != xno \
  327. && test "$am_cv_$1_dependencies_compiler_type" = gcc3])
  328. ])
  329. # AM_SET_DEPDIR
  330. # -------------
  331. # Choose a directory name for dependency files.
  332. # This macro is AC_REQUIREd in _AM_DEPENDENCIES.
  333. AC_DEFUN([AM_SET_DEPDIR],
  334. [AC_REQUIRE([AM_SET_LEADING_DOT])dnl
  335. AC_SUBST([DEPDIR], ["${am__leading_dot}deps"])dnl
  336. ])
  337. # AM_DEP_TRACK
  338. # ------------
  339. AC_DEFUN([AM_DEP_TRACK],
  340. [AC_ARG_ENABLE([dependency-tracking], [dnl
  341. AS_HELP_STRING(
  342. [--enable-dependency-tracking],
  343. [do not reject slow dependency extractors])
  344. AS_HELP_STRING(
  345. [--disable-dependency-tracking],
  346. [speeds up one-time build])])
  347. if test "x$enable_dependency_tracking" != xno; then
  348. am_depcomp="$ac_aux_dir/depcomp"
  349. AMDEPBACKSLASH='\'
  350. am__nodep='_no'
  351. fi
  352. AM_CONDITIONAL([AMDEP], [test "x$enable_dependency_tracking" != xno])
  353. AC_SUBST([AMDEPBACKSLASH])dnl
  354. _AM_SUBST_NOTMAKE([AMDEPBACKSLASH])dnl
  355. AC_SUBST([am__nodep])dnl
  356. _AM_SUBST_NOTMAKE([am__nodep])dnl
  357. ])
  358. # Generate code to set up dependency tracking. -*- Autoconf -*-
  359. # Copyright (C) 1999-2020 Free Software Foundation, Inc.
  360. #
  361. # This file is free software; the Free Software Foundation
  362. # gives unlimited permission to copy and/or distribute it,
  363. # with or without modifications, as long as this notice is preserved.
  364. # _AM_OUTPUT_DEPENDENCY_COMMANDS
  365. # ------------------------------
  366. AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
  367. [{
  368. # Older Autoconf quotes --file arguments for eval, but not when files
  369. # are listed without --file. Let's play safe and only enable the eval
  370. # if we detect the quoting.
  371. # TODO: see whether this extra hack can be removed once we start
  372. # requiring Autoconf 2.70 or later.
  373. AS_CASE([$CONFIG_FILES],
  374. [*\'*], [eval set x "$CONFIG_FILES"],
  375. [*], [set x $CONFIG_FILES])
  376. shift
  377. # Used to flag and report bootstrapping failures.
  378. am_rc=0
  379. for am_mf
  380. do
  381. # Strip MF so we end up with the name of the file.
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  383. # Check whether this is an Automake generated Makefile which includes
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  385. # Grep'ing the whole file directly is not great: AIX grep has a line
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  387. sed -n 's,^am--depfiles:.*,X,p' "$am_mf" | grep X >/dev/null 2>&1 \
  388. || continue
  389. am_dirpart=`AS_DIRNAME(["$am_mf"])`
  390. am_filepart=`AS_BASENAME(["$am_mf"])`
  391. AM_RUN_LOG([cd "$am_dirpart" \
  392. && sed -e '/# am--include-marker/d' "$am_filepart" \
  393. | $MAKE -f - am--depfiles]) || am_rc=$?
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  395. if test $am_rc -ne 0; then
  396. AC_MSG_FAILURE([Something went wrong bootstrapping makefile fragments
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  399. necessary). You can also try re-running configure with the
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  402. fi
  403. AS_UNSET([am_dirpart])
  404. AS_UNSET([am_filepart])
  405. AS_UNSET([am_mf])
  406. AS_UNSET([am_rc])
  407. rm -f conftest-deps.mk
  408. }
  409. ])# _AM_OUTPUT_DEPENDENCY_COMMANDS
  410. # AM_OUTPUT_DEPENDENCY_COMMANDS
  411. # -----------------------------
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  413. #
  414. # This code is only required when automatic dependency tracking is enabled.
  415. # This creates each '.Po' and '.Plo' makefile fragment that we'll need in
  416. # order to bootstrap the dependency handling code.
  417. AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
  418. [AC_CONFIG_COMMANDS([depfiles],
  419. [test x"$AMDEP_TRUE" != x"" || _AM_OUTPUT_DEPENDENCY_COMMANDS],
  420. [AMDEP_TRUE="$AMDEP_TRUE" MAKE="${MAKE-make}"])])
  421. # Do all the work for Automake. -*- Autoconf -*-
  422. # Copyright (C) 1996-2020 Free Software Foundation, Inc.
  423. #
  424. # This file is free software; the Free Software Foundation
  425. # gives unlimited permission to copy and/or distribute it,
  426. # with or without modifications, as long as this notice is preserved.
  427. # This macro actually does too much. Some checks are only needed if
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  429. dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
  430. m4_define([AC_PROG_CC],
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  432. [_AM_PROG_CC_C_O
  433. ])
  434. # AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
  435. # AM_INIT_AUTOMAKE([OPTIONS])
  436. # -----------------------------------------------
  437. # The call with PACKAGE and VERSION arguments is the old style
  438. # call (pre autoconf-2.50), which is being phased out. PACKAGE
  439. # and VERSION should now be passed to AC_INIT and removed from
  440. # the call to AM_INIT_AUTOMAKE.
  441. # We support both call styles for the transition. After
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  445. AC_DEFUN([AM_INIT_AUTOMAKE],
  446. [AC_PREREQ([2.65])dnl
  447. dnl Autoconf wants to disallow AM_ names. We explicitly allow
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  449. m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
  450. AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
  451. AC_REQUIRE([AC_PROG_INSTALL])dnl
  452. if test "`cd $srcdir && pwd`" != "`pwd`"; then
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  454. # is not polluted with repeated "-I."
  455. AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
  456. # test to see if srcdir already configured
  457. if test -f $srcdir/config.status; then
  458. AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
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  460. fi
  461. # test whether we have cygpath
  462. if test -z "$CYGPATH_W"; then
  463. if (cygpath --version) >/dev/null 2>/dev/null; then
  464. CYGPATH_W='cygpath -w'
  465. else
  466. CYGPATH_W=echo
  467. fi
  468. fi
  469. AC_SUBST([CYGPATH_W])
  470. # Define the identity of the package.
  471. dnl Distinguish between old-style and new-style calls.
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  475. m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
  476. AC_SUBST([PACKAGE], [$1])dnl
  477. AC_SUBST([VERSION], [$2])],
  478. [_AM_SET_OPTIONS([$1])dnl
  479. dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
  480. m4_if(
  481. m4_ifdef([AC_PACKAGE_NAME], [ok]):m4_ifdef([AC_PACKAGE_VERSION], [ok]),
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  483. [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
  484. AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
  485. AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
  486. _AM_IF_OPTION([no-define],,
  487. [AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
  488. AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
  489. # Some tools Automake needs.
  490. AC_REQUIRE([AM_SANITY_CHECK])dnl
  491. AC_REQUIRE([AC_ARG_PROGRAM])dnl
  492. AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
  493. AM_MISSING_PROG([AUTOCONF], [autoconf])
  494. AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
  495. AM_MISSING_PROG([AUTOHEADER], [autoheader])
  496. AM_MISSING_PROG([MAKEINFO], [makeinfo])
  497. AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
  498. AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
  499. AC_REQUIRE([AC_PROG_MKDIR_P])dnl
  500. # For better backward compatibility. To be removed once Automake 1.9.x
  501. # dies out for good. For more background, see:
  502. # <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
  503. # <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
  504. AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
  505. # We need awk for the "check" target (and possibly the TAP driver). The
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  507. AC_REQUIRE([AC_PROG_AWK])dnl
  508. AC_REQUIRE([AC_PROG_MAKE_SET])dnl
  509. AC_REQUIRE([AM_SET_LEADING_DOT])dnl
  510. _AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
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  513. _AM_IF_OPTION([no-dependencies],,
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  518. AC_PROVIDE_IFELSE([AC_PROG_CXX],
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  522. AC_PROVIDE_IFELSE([AC_PROG_OBJC],
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  526. AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
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  528. [m4_define([AC_PROG_OBJCXX],
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  530. ])
  531. AC_REQUIRE([AM_SILENT_RULES])dnl
  532. dnl The testsuite driver may need to know about EXEEXT, so add the
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  535. AC_CONFIG_COMMANDS_PRE(dnl
  536. [m4_provide_if([_AM_COMPILER_EXEEXT],
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  538. # POSIX will say in a future version that running "rm -f" with no argument
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  540. # recipes. So use an aggressive probe to check that the usage we want is
  541. # actually supported "in the wild" to an acceptable degree.
  542. # See automake bug#10828.
  543. # To make any issue more visible, cause the running configure to be aborted
  544. # by default if the 'rm' program in use doesn't match our expectations; the
  545. # user can still override this though.
  546. if rm -f && rm -fr && rm -rf; then : OK; else
  547. cat >&2 <<'END'
  548. Oops!
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  551. to the behaviour of most rm programs out there, and not conforming with
  552. the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
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  555. can help us improve future automake versions.
  556. END
  557. if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
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  559. echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
  560. echo >&2
  561. else
  562. cat >&2 <<'END'
  563. Aborting the configuration process, to ensure you take notice of the issue.
  564. You can download and install GNU coreutils to get an 'rm' implementation
  565. that behaves properly: <https://www.gnu.org/software/coreutils/>.
  566. If you want to complete the configuration process using your problematic
  567. 'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
  568. to "yes", and re-run configure.
  569. END
  570. AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
  571. fi
  572. fi
  573. dnl The trailing newline in this macro's definition is deliberate, for
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  575. dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
  576. ])
  577. dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion. Do not
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  601. # Copyright (C) 2001-2020 Free Software Foundation, Inc.
  602. #
  603. # This file is free software; the Free Software Foundation
  604. # gives unlimited permission to copy and/or distribute it,
  605. # with or without modifications, as long as this notice is preserved.
  606. # AM_PROG_INSTALL_SH
  607. # ------------------
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  614. install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
  615. *)
  616. install_sh="\${SHELL} $am_aux_dir/install-sh"
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  618. fi
  619. AC_SUBST([install_sh])])
  620. # Copyright (C) 2003-2020 Free Software Foundation, Inc.
  621. #
  622. # This file is free software; the Free Software Foundation
  623. # gives unlimited permission to copy and/or distribute it,
  624. # with or without modifications, as long as this notice is preserved.
  625. # Check whether the underlying file-system supports filenames
  626. # with a leading dot. For instance MS-DOS doesn't.
  627. AC_DEFUN([AM_SET_LEADING_DOT],
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  633. am__leading_dot=_
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  635. rmdir .tst 2>/dev/null
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  637. # Check to see how 'make' treats includes. -*- Autoconf -*-
  638. # Copyright (C) 2001-2020 Free Software Foundation, Inc.
  639. #
  640. # This file is free software; the Free Software Foundation
  641. # gives unlimited permission to copy and/or distribute it,
  642. # with or without modifications, as long as this notice is preserved.
  643. # AM_MAKE_INCLUDE()
  644. # -----------------
  645. # Check whether make has an 'include' directive that can support all
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  649. cat > confinc.mk << 'END'
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  658. # Other make implementations (GNU, Solaris 10, AIX) do it like this.
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  660. _am_result=no
  661. for s in GNU BSD; do
  662. AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
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  667. [am__include='include' am__quote=''])])
  668. if test "$am__include" != "#"; then
  669. _am_result="yes ($s style)"
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  671. fi
  672. done
  673. rm -f confinc.* confmf.*
  674. AC_MSG_RESULT([${_am_result}])
  675. AC_SUBST([am__include])])
  676. AC_SUBST([am__quote])])
  677. # Fake the existence of programs that GNU maintainers use. -*- Autoconf -*-
  678. # Copyright (C) 1997-2020 Free Software Foundation, Inc.
  679. #
  680. # This file is free software; the Free Software Foundation
  681. # gives unlimited permission to copy and/or distribute it,
  682. # with or without modifications, as long as this notice is preserved.
  683. # AM_MISSING_PROG(NAME, PROGRAM)
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  685. AC_DEFUN([AM_MISSING_PROG],
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  707. # Helper functions for option handling. -*- Autoconf -*-
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  709. #
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  711. # gives unlimited permission to copy and/or distribute it,
  712. # with or without modifications, as long as this notice is preserved.
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  724. # OPTIONS is a space-separated list of Automake options.
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  727. # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
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  730. AC_DEFUN([_AM_IF_OPTION],
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  732. # Copyright (C) 1999-2020 Free Software Foundation, Inc.
  733. #
  734. # This file is free software; the Free Software Foundation
  735. # gives unlimited permission to copy and/or distribute it,
  736. # with or without modifications, as long as this notice is preserved.
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  766. # Losing compiler, so override with the script.
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  773. AC_LANG_POP([C])])
  774. # For backward compatibility.
  775. AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
  776. # Copyright (C) 2001-2020 Free Software Foundation, Inc.
  777. #
  778. # This file is free software; the Free Software Foundation
  779. # gives unlimited permission to copy and/or distribute it,
  780. # with or without modifications, as long as this notice is preserved.
  781. # AM_RUN_LOG(COMMAND)
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  792. # Copyright (C) 1996-2020 Free Software Foundation, Inc.
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  815. # symlink; some systems play weird games with the mod time of symlinks
  816. # (eg FreeBSD returns the mod time of the symlink's containing
  817. # directory).
  818. if (
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  820. for am_try in 1 2; do
  821. echo "timestamp, slept: $am_has_slept" > conftest.file
  822. set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
  823. if test "$[*]" = "X"; then
  824. # -L didn't work.
  825. set X `ls -t "$srcdir/configure" conftest.file`
  826. fi
  827. if test "$[*]" != "X $srcdir/configure conftest.file" \
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  829. # If neither matched, then we have a broken ls. This can happen
  830. # if, for instance, CONFIG_SHELL is bash and it inherits a
  831. # broken ls alias from the environment. This has actually
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  833. AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken
  834. alias in your environment])
  835. fi
  836. if test "$[2]" = conftest.file || test $am_try -eq 2; then
  837. break
  838. fi
  839. # Just in case.
  840. sleep 1
  841. am_has_slept=yes
  842. done
  843. test "$[2]" = conftest.file
  844. )
  845. then
  846. # Ok.
  847. :
  848. else
  849. AC_MSG_ERROR([newly created file is older than distributed files!
  850. Check your system clock])
  851. fi
  852. AC_MSG_RESULT([yes])
  853. # If we didn't sleep, we still need to ensure time stamps of config.status and
  854. # generated files are strictly newer.
  855. am_sleep_pid=
  856. if grep 'slept: no' conftest.file >/dev/null 2>&1; then
  857. ( sleep 1 ) &
  858. am_sleep_pid=$!
  859. fi
  860. AC_CONFIG_COMMANDS_PRE(
  861. [AC_MSG_CHECKING([that generated files are newer than configure])
  862. if test -n "$am_sleep_pid"; then
  863. # Hide warnings about reused PIDs.
  864. wait $am_sleep_pid 2>/dev/null
  865. fi
  866. AC_MSG_RESULT([done])])
  867. rm -f conftest.file
  868. ])
  869. # Copyright (C) 2009-2020 Free Software Foundation, Inc.
  870. #
  871. # This file is free software; the Free Software Foundation
  872. # gives unlimited permission to copy and/or distribute it,
  873. # with or without modifications, as long as this notice is preserved.
  874. # AM_SILENT_RULES([DEFAULT])
  875. # --------------------------
  876. # Enable less verbose build rules; with the default set to DEFAULT
  877. # ("yes" being less verbose, "no" or empty being verbose).
  878. AC_DEFUN([AM_SILENT_RULES],
  879. [AC_ARG_ENABLE([silent-rules], [dnl
  880. AS_HELP_STRING(
  881. [--enable-silent-rules],
  882. [less verbose build output (undo: "make V=1")])
  883. AS_HELP_STRING(
  884. [--disable-silent-rules],
  885. [verbose build output (undo: "make V=0")])dnl
  886. ])
  887. case $enable_silent_rules in @%:@ (((
  888. yes) AM_DEFAULT_VERBOSITY=0;;
  889. no) AM_DEFAULT_VERBOSITY=1;;
  890. *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
  891. esac
  892. dnl
  893. dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
  894. dnl do not support nested variable expansions.
  895. dnl See automake bug#9928 and bug#10237.
  896. am_make=${MAKE-make}
  897. AC_CACHE_CHECK([whether $am_make supports nested variables],
  898. [am_cv_make_support_nested_variables],
  899. [if AS_ECHO([['TRUE=$(BAR$(V))
  900. BAR0=false
  901. BAR1=true
  902. V=1
  903. am__doit:
  904. @$(TRUE)
  905. .PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
  906. am_cv_make_support_nested_variables=yes
  907. else
  908. am_cv_make_support_nested_variables=no
  909. fi])
  910. if test $am_cv_make_support_nested_variables = yes; then
  911. dnl Using '$V' instead of '$(V)' breaks IRIX make.
  912. AM_V='$(V)'
  913. AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
  914. else
  915. AM_V=$AM_DEFAULT_VERBOSITY
  916. AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
  917. fi
  918. AC_SUBST([AM_V])dnl
  919. AM_SUBST_NOTMAKE([AM_V])dnl
  920. AC_SUBST([AM_DEFAULT_V])dnl
  921. AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
  922. AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
  923. AM_BACKSLASH='\'
  924. AC_SUBST([AM_BACKSLASH])dnl
  925. _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
  926. ])
  927. # Copyright (C) 2001-2020 Free Software Foundation, Inc.
  928. #
  929. # This file is free software; the Free Software Foundation
  930. # gives unlimited permission to copy and/or distribute it,
  931. # with or without modifications, as long as this notice is preserved.
  932. # AM_PROG_INSTALL_STRIP
  933. # ---------------------
  934. # One issue with vendor 'install' (even GNU) is that you can't
  935. # specify the program used to strip binaries. This is especially
  936. # annoying in cross-compiling environments, where the build's strip
  937. # is unlikely to handle the host's binaries.
  938. # Fortunately install-sh will honor a STRIPPROG variable, so we
  939. # always use install-sh in "make install-strip", and initialize
  940. # STRIPPROG with the value of the STRIP variable (set by the user).
  941. AC_DEFUN([AM_PROG_INSTALL_STRIP],
  942. [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
  943. # Installed binaries are usually stripped using 'strip' when the user
  944. # run "make install-strip". However 'strip' might not be the right
  945. # tool to use in cross-compilation environments, therefore Automake
  946. # will honor the 'STRIP' environment variable to overrule this program.
  947. dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
  948. if test "$cross_compiling" != no; then
  949. AC_CHECK_TOOL([STRIP], [strip], :)
  950. fi
  951. INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
  952. AC_SUBST([INSTALL_STRIP_PROGRAM])])
  953. # Copyright (C) 2006-2020 Free Software Foundation, Inc.
  954. #
  955. # This file is free software; the Free Software Foundation
  956. # gives unlimited permission to copy and/or distribute it,
  957. # with or without modifications, as long as this notice is preserved.
  958. # _AM_SUBST_NOTMAKE(VARIABLE)
  959. # ---------------------------
  960. # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
  961. # This macro is traced by Automake.
  962. AC_DEFUN([_AM_SUBST_NOTMAKE])
  963. # AM_SUBST_NOTMAKE(VARIABLE)
  964. # --------------------------
  965. # Public sister of _AM_SUBST_NOTMAKE.
  966. AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
  967. # Check how to create a tarball. -*- Autoconf -*-
  968. # Copyright (C) 2004-2020 Free Software Foundation, Inc.
  969. #
  970. # This file is free software; the Free Software Foundation
  971. # gives unlimited permission to copy and/or distribute it,
  972. # with or without modifications, as long as this notice is preserved.
  973. # _AM_PROG_TAR(FORMAT)
  974. # --------------------
  975. # Check how to create a tarball in format FORMAT.
  976. # FORMAT should be one of 'v7', 'ustar', or 'pax'.
  977. #
  978. # Substitute a variable $(am__tar) that is a command
  979. # writing to stdout a FORMAT-tarball containing the directory
  980. # $tardir.
  981. # tardir=directory && $(am__tar) > result.tar
  982. #
  983. # Substitute a variable $(am__untar) that extract such
  984. # a tarball read from stdin.
  985. # $(am__untar) < result.tar
  986. #
  987. AC_DEFUN([_AM_PROG_TAR],
  988. [# Always define AMTAR for backward compatibility. Yes, it's still used
  989. # in the wild :-( We should find a proper way to deprecate it ...
  990. AC_SUBST([AMTAR], ['$${TAR-tar}'])
  991. # We'll loop over all known methods to create a tar archive until one works.
  992. _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
  993. m4_if([$1], [v7],
  994. [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
  995. [m4_case([$1],
  996. [ustar],
  997. [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
  998. # There is notably a 21 bits limit for the UID and the GID. In fact,
  999. # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
  1000. # and bug#13588).
  1001. am_max_uid=2097151 # 2^21 - 1
  1002. am_max_gid=$am_max_uid
  1003. # The $UID and $GID variables are not portable, so we need to resort
  1004. # to the POSIX-mandated id(1) utility. Errors in the 'id' calls
  1005. # below are definitely unexpected, so allow the users to see them
  1006. # (that is, avoid stderr redirection).
  1007. am_uid=`id -u || echo unknown`
  1008. am_gid=`id -g || echo unknown`
  1009. AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
  1010. if test $am_uid -le $am_max_uid; then
  1011. AC_MSG_RESULT([yes])
  1012. else
  1013. AC_MSG_RESULT([no])
  1014. _am_tools=none
  1015. fi
  1016. AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
  1017. if test $am_gid -le $am_max_gid; then
  1018. AC_MSG_RESULT([yes])
  1019. else
  1020. AC_MSG_RESULT([no])
  1021. _am_tools=none
  1022. fi],
  1023. [pax],
  1024. [],
  1025. [m4_fatal([Unknown tar format])])
  1026. AC_MSG_CHECKING([how to create a $1 tar archive])
  1027. # Go ahead even if we have the value already cached. We do so because we
  1028. # need to set the values for the 'am__tar' and 'am__untar' variables.
  1029. _am_tools=${am_cv_prog_tar_$1-$_am_tools}
  1030. for _am_tool in $_am_tools; do
  1031. case $_am_tool in
  1032. gnutar)
  1033. for _am_tar in tar gnutar gtar; do
  1034. AM_RUN_LOG([$_am_tar --version]) && break
  1035. done
  1036. am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
  1037. am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
  1038. am__untar="$_am_tar -xf -"
  1039. ;;
  1040. plaintar)
  1041. # Must skip GNU tar: if it does not support --format= it doesn't create
  1042. # ustar tarball either.
  1043. (tar --version) >/dev/null 2>&1 && continue
  1044. am__tar='tar chf - "$$tardir"'
  1045. am__tar_='tar chf - "$tardir"'
  1046. am__untar='tar xf -'
  1047. ;;
  1048. pax)
  1049. am__tar='pax -L -x $1 -w "$$tardir"'
  1050. am__tar_='pax -L -x $1 -w "$tardir"'
  1051. am__untar='pax -r'
  1052. ;;
  1053. cpio)
  1054. am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
  1055. am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
  1056. am__untar='cpio -i -H $1 -d'
  1057. ;;
  1058. none)
  1059. am__tar=false
  1060. am__tar_=false
  1061. am__untar=false
  1062. ;;
  1063. esac
  1064. # If the value was cached, stop now. We just wanted to have am__tar
  1065. # and am__untar set.
  1066. test -n "${am_cv_prog_tar_$1}" && break
  1067. # tar/untar a dummy directory, and stop if the command works.
  1068. rm -rf conftest.dir
  1069. mkdir conftest.dir
  1070. echo GrepMe > conftest.dir/file
  1071. AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
  1072. rm -rf conftest.dir
  1073. if test -s conftest.tar; then
  1074. AM_RUN_LOG([$am__untar <conftest.tar])
  1075. AM_RUN_LOG([cat conftest.dir/file])
  1076. grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
  1077. fi
  1078. done
  1079. rm -rf conftest.dir
  1080. AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
  1081. AC_MSG_RESULT([$am_cv_prog_tar_$1])])
  1082. AC_SUBST([am__tar])
  1083. AC_SUBST([am__untar])
  1084. ]) # _AM_PROG_TAR
  1085. m4_include([m4/libtool.m4])
  1086. m4_include([m4/ltoptions.m4])
  1087. m4_include([m4/ltsugar.m4])
  1088. m4_include([m4/ltversion.m4])
  1089. m4_include([m4/lt~obsolete.m4])
  1090. m4_include([acinclude.m4])