aclocal.m4 41 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. # AM_AUX_DIR_EXPAND -*- Autoconf -*-
  51. # Copyright (C) 2001-2020 Free Software Foundation, Inc.
  52. #
  53. # This file is free software; the Free Software Foundation
  54. # gives unlimited permission to copy and/or distribute it,
  55. # with or without modifications, as long as this notice is preserved.
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  79. #
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  87. # However there are other variables, like CC, which are often used in
  88. # configure, and could therefore not use this "fixed" $ac_aux_dir.
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  90. # Another solution, used here, is to always expand $ac_aux_dir to an
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  98. # AM_CONDITIONAL -*- Autoconf -*-
  99. # Copyright (C) 1997-2020 Free Software Foundation, Inc.
  100. #
  101. # This file is free software; the Free Software Foundation
  102. # gives unlimited permission to copy and/or distribute it,
  103. # with or without modifications, as long as this notice is preserved.
  104. # AM_CONDITIONAL(NAME, SHELL-CONDITION)
  105. # -------------------------------------
  106. # Define a conditional.
  107. AC_DEFUN([AM_CONDITIONAL],
  108. [AC_PREREQ([2.52])dnl
  109. m4_if([$1], [TRUE], [AC_FATAL([$0: invalid condition: $1])],
  110. [$1], [FALSE], [AC_FATAL([$0: invalid condition: $1])])dnl
  111. AC_SUBST([$1_TRUE])dnl
  112. AC_SUBST([$1_FALSE])dnl
  113. _AM_SUBST_NOTMAKE([$1_TRUE])dnl
  114. _AM_SUBST_NOTMAKE([$1_FALSE])dnl
  115. m4_define([_AM_COND_VALUE_$1], [$2])dnl
  116. if $2; then
  117. $1_TRUE=
  118. $1_FALSE='#'
  119. else
  120. $1_TRUE='#'
  121. $1_FALSE=
  122. fi
  123. AC_CONFIG_COMMANDS_PRE(
  124. [if test -z "${$1_TRUE}" && test -z "${$1_FALSE}"; then
  125. AC_MSG_ERROR([[conditional "$1" was never defined.
  126. Usually this means the macro was only invoked conditionally.]])
  127. fi])])
  128. # Copyright (C) 1999-2020 Free Software Foundation, Inc.
  129. #
  130. # This file is free software; the Free Software Foundation
  131. # gives unlimited permission to copy and/or distribute it,
  132. # with or without modifications, as long as this notice is preserved.
  133. # There are a few dirty hacks below to avoid letting 'AC_PROG_CC' be
  134. # written in clear, in which case automake, when reading aclocal.m4,
  135. # will think it sees a *use*, and therefore will trigger all it's
  136. # C support machinery. Also note that it means that autoscan, seeing
  137. # CC etc. in the Makefile, will ask for an AC_PROG_CC use...
  138. # _AM_DEPENDENCIES(NAME)
  139. # ----------------------
  140. # See how the compiler implements dependency checking.
  141. # NAME is "CC", "CXX", "OBJC", "OBJCXX", "UPC", or "GJC".
  142. # We try a few techniques and use that to set a single cache variable.
  143. #
  144. # We don't AC_REQUIRE the corresponding AC_PROG_CC since the latter was
  145. # modified to invoke _AM_DEPENDENCIES(CC); we would have a circular
  146. # dependency, and given that the user is not expected to run this macro,
  147. # just rely on AC_PROG_CC.
  148. AC_DEFUN([_AM_DEPENDENCIES],
  149. [AC_REQUIRE([AM_SET_DEPDIR])dnl
  150. AC_REQUIRE([AM_OUTPUT_DEPENDENCY_COMMANDS])dnl
  151. AC_REQUIRE([AM_MAKE_INCLUDE])dnl
  152. AC_REQUIRE([AM_DEP_TRACK])dnl
  153. m4_if([$1], [CC], [depcc="$CC" am_compiler_list=],
  154. [$1], [CXX], [depcc="$CXX" am_compiler_list=],
  155. [$1], [OBJC], [depcc="$OBJC" am_compiler_list='gcc3 gcc'],
  156. [$1], [OBJCXX], [depcc="$OBJCXX" am_compiler_list='gcc3 gcc'],
  157. [$1], [UPC], [depcc="$UPC" am_compiler_list=],
  158. [$1], [GCJ], [depcc="$GCJ" am_compiler_list='gcc3 gcc'],
  159. [depcc="$$1" am_compiler_list=])
  160. AC_CACHE_CHECK([dependency style of $depcc],
  161. [am_cv_$1_dependencies_compiler_type],
  162. [if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
  163. # We make a subdir and do the tests there. Otherwise we can end up
  164. # making bogus files that we don't know about and never remove. For
  165. # instance it was reported that on HP-UX the gcc test will end up
  166. # making a dummy file named 'D' -- because '-MD' means "put the output
  167. # in D".
  168. rm -rf conftest.dir
  169. mkdir conftest.dir
  170. # Copy depcomp to subdir because otherwise we won't find it if we're
  171. # using a relative directory.
  172. cp "$am_depcomp" conftest.dir
  173. cd conftest.dir
  174. # We will build objects and dependencies in a subdirectory because
  175. # it helps to detect inapplicable dependency modes. For instance
  176. # both Tru64's cc and ICC support -MD to output dependencies as a
  177. # side effect of compilation, but ICC will put the dependencies in
  178. # the current directory while Tru64 will put them in the object
  179. # directory.
  180. mkdir sub
  181. am_cv_$1_dependencies_compiler_type=none
  182. if test "$am_compiler_list" = ""; then
  183. am_compiler_list=`sed -n ['s/^#*\([a-zA-Z0-9]*\))$/\1/p'] < ./depcomp`
  184. fi
  185. am__universal=false
  186. m4_case([$1], [CC],
  187. [case " $depcc " in #(
  188. *\ -arch\ *\ -arch\ *) am__universal=true ;;
  189. esac],
  190. [CXX],
  191. [case " $depcc " in #(
  192. *\ -arch\ *\ -arch\ *) am__universal=true ;;
  193. esac])
  194. for depmode in $am_compiler_list; do
  195. # Setup a source with many dependencies, because some compilers
  196. # like to wrap large dependency lists on column 80 (with \), and
  197. # we should not choose a depcomp mode which is confused by this.
  198. #
  199. # We need to recreate these files for each test, as the compiler may
  200. # overwrite some of them when testing with obscure command lines.
  201. # This happens at least with the AIX C compiler.
  202. : > sub/conftest.c
  203. for i in 1 2 3 4 5 6; do
  204. echo '#include "conftst'$i'.h"' >> sub/conftest.c
  205. # Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
  206. # Solaris 10 /bin/sh.
  207. echo '/* dummy */' > sub/conftst$i.h
  208. done
  209. echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
  210. # We check with '-c' and '-o' for the sake of the "dashmstdout"
  211. # mode. It turns out that the SunPro C++ compiler does not properly
  212. # handle '-M -o', and we need to detect this. Also, some Intel
  213. # versions had trouble with output in subdirs.
  214. am__obj=sub/conftest.${OBJEXT-o}
  215. am__minus_obj="-o $am__obj"
  216. case $depmode in
  217. gcc)
  218. # This depmode causes a compiler race in universal mode.
  219. test "$am__universal" = false || continue
  220. ;;
  221. nosideeffect)
  222. # After this tag, mechanisms are not by side-effect, so they'll
  223. # only be used when explicitly requested.
  224. if test "x$enable_dependency_tracking" = xyes; then
  225. continue
  226. else
  227. break
  228. fi
  229. ;;
  230. msvc7 | msvc7msys | msvisualcpp | msvcmsys)
  231. # This compiler won't grok '-c -o', but also, the minuso test has
  232. # not run yet. These depmodes are late enough in the game, and
  233. # so weak that their functioning should not be impacted.
  234. am__obj=conftest.${OBJEXT-o}
  235. am__minus_obj=
  236. ;;
  237. none) break ;;
  238. esac
  239. if depmode=$depmode \
  240. source=sub/conftest.c object=$am__obj \
  241. depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
  242. $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
  243. >/dev/null 2>conftest.err &&
  244. grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
  245. grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
  246. grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
  247. ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
  248. # icc doesn't choke on unknown options, it will just issue warnings
  249. # or remarks (even with -Werror). So we grep stderr for any message
  250. # that says an option was ignored or not supported.
  251. # When given -MP, icc 7.0 and 7.1 complain thusly:
  252. # icc: Command line warning: ignoring option '-M'; no argument required
  253. # The diagnosis changed in icc 8.0:
  254. # icc: Command line remark: option '-MP' not supported
  255. if (grep 'ignoring option' conftest.err ||
  256. grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
  257. am_cv_$1_dependencies_compiler_type=$depmode
  258. break
  259. fi
  260. fi
  261. done
  262. cd ..
  263. rm -rf conftest.dir
  264. else
  265. am_cv_$1_dependencies_compiler_type=none
  266. fi
  267. ])
  268. AC_SUBST([$1DEPMODE], [depmode=$am_cv_$1_dependencies_compiler_type])
  269. AM_CONDITIONAL([am__fastdep$1], [
  270. test "x$enable_dependency_tracking" != xno \
  271. && test "$am_cv_$1_dependencies_compiler_type" = gcc3])
  272. ])
  273. # AM_SET_DEPDIR
  274. # -------------
  275. # Choose a directory name for dependency files.
  276. # This macro is AC_REQUIREd in _AM_DEPENDENCIES.
  277. AC_DEFUN([AM_SET_DEPDIR],
  278. [AC_REQUIRE([AM_SET_LEADING_DOT])dnl
  279. AC_SUBST([DEPDIR], ["${am__leading_dot}deps"])dnl
  280. ])
  281. # AM_DEP_TRACK
  282. # ------------
  283. AC_DEFUN([AM_DEP_TRACK],
  284. [AC_ARG_ENABLE([dependency-tracking], [dnl
  285. AS_HELP_STRING(
  286. [--enable-dependency-tracking],
  287. [do not reject slow dependency extractors])
  288. AS_HELP_STRING(
  289. [--disable-dependency-tracking],
  290. [speeds up one-time build])])
  291. if test "x$enable_dependency_tracking" != xno; then
  292. am_depcomp="$ac_aux_dir/depcomp"
  293. AMDEPBACKSLASH='\'
  294. am__nodep='_no'
  295. fi
  296. AM_CONDITIONAL([AMDEP], [test "x$enable_dependency_tracking" != xno])
  297. AC_SUBST([AMDEPBACKSLASH])dnl
  298. _AM_SUBST_NOTMAKE([AMDEPBACKSLASH])dnl
  299. AC_SUBST([am__nodep])dnl
  300. _AM_SUBST_NOTMAKE([am__nodep])dnl
  301. ])
  302. # Generate code to set up dependency tracking. -*- Autoconf -*-
  303. # Copyright (C) 1999-2020 Free Software Foundation, Inc.
  304. #
  305. # This file is free software; the Free Software Foundation
  306. # gives unlimited permission to copy and/or distribute it,
  307. # with or without modifications, as long as this notice is preserved.
  308. # _AM_OUTPUT_DEPENDENCY_COMMANDS
  309. # ------------------------------
  310. AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
  311. [{
  312. # Older Autoconf quotes --file arguments for eval, but not when files
  313. # are listed without --file. Let's play safe and only enable the eval
  314. # if we detect the quoting.
  315. # TODO: see whether this extra hack can be removed once we start
  316. # requiring Autoconf 2.70 or later.
  317. AS_CASE([$CONFIG_FILES],
  318. [*\'*], [eval set x "$CONFIG_FILES"],
  319. [*], [set x $CONFIG_FILES])
  320. shift
  321. # Used to flag and report bootstrapping failures.
  322. am_rc=0
  323. for am_mf
  324. do
  325. # Strip MF so we end up with the name of the file.
  326. am_mf=`AS_ECHO(["$am_mf"]) | sed -e 's/:.*$//'`
  327. # Check whether this is an Automake generated Makefile which includes
  328. # dependency-tracking related rules and includes.
  329. # Grep'ing the whole file directly is not great: AIX grep has a line
  330. # limit of 2048, but all sed's we know have understand at least 4000.
  331. sed -n 's,^am--depfiles:.*,X,p' "$am_mf" | grep X >/dev/null 2>&1 \
  332. || continue
  333. am_dirpart=`AS_DIRNAME(["$am_mf"])`
  334. am_filepart=`AS_BASENAME(["$am_mf"])`
  335. AM_RUN_LOG([cd "$am_dirpart" \
  336. && sed -e '/# am--include-marker/d' "$am_filepart" \
  337. | $MAKE -f - am--depfiles]) || am_rc=$?
  338. done
  339. if test $am_rc -ne 0; then
  340. AC_MSG_FAILURE([Something went wrong bootstrapping makefile fragments
  341. for automatic dependency tracking. If GNU make was not used, consider
  342. re-running the configure script with MAKE="gmake" (or whatever is
  343. necessary). You can also try re-running configure with the
  344. '--disable-dependency-tracking' option to at least be able to build
  345. the package (albeit without support for automatic dependency tracking).])
  346. fi
  347. AS_UNSET([am_dirpart])
  348. AS_UNSET([am_filepart])
  349. AS_UNSET([am_mf])
  350. AS_UNSET([am_rc])
  351. rm -f conftest-deps.mk
  352. }
  353. ])# _AM_OUTPUT_DEPENDENCY_COMMANDS
  354. # AM_OUTPUT_DEPENDENCY_COMMANDS
  355. # -----------------------------
  356. # This macro should only be invoked once -- use via AC_REQUIRE.
  357. #
  358. # This code is only required when automatic dependency tracking is enabled.
  359. # This creates each '.Po' and '.Plo' makefile fragment that we'll need in
  360. # order to bootstrap the dependency handling code.
  361. AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
  362. [AC_CONFIG_COMMANDS([depfiles],
  363. [test x"$AMDEP_TRUE" != x"" || _AM_OUTPUT_DEPENDENCY_COMMANDS],
  364. [AMDEP_TRUE="$AMDEP_TRUE" MAKE="${MAKE-make}"])])
  365. # Do all the work for Automake. -*- Autoconf -*-
  366. # Copyright (C) 1996-2020 Free Software Foundation, Inc.
  367. #
  368. # This file is free software; the Free Software Foundation
  369. # gives unlimited permission to copy and/or distribute it,
  370. # with or without modifications, as long as this notice is preserved.
  371. # This macro actually does too much. Some checks are only needed if
  372. # your package does certain things. But this isn't really a big deal.
  373. dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
  374. m4_define([AC_PROG_CC],
  375. m4_defn([AC_PROG_CC])
  376. [_AM_PROG_CC_C_O
  377. ])
  378. # AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
  379. # AM_INIT_AUTOMAKE([OPTIONS])
  380. # -----------------------------------------------
  381. # The call with PACKAGE and VERSION arguments is the old style
  382. # call (pre autoconf-2.50), which is being phased out. PACKAGE
  383. # and VERSION should now be passed to AC_INIT and removed from
  384. # the call to AM_INIT_AUTOMAKE.
  385. # We support both call styles for the transition. After
  386. # the next Automake release, Autoconf can make the AC_INIT
  387. # arguments mandatory, and then we can depend on a new Autoconf
  388. # release and drop the old call support.
  389. AC_DEFUN([AM_INIT_AUTOMAKE],
  390. [AC_PREREQ([2.65])dnl
  391. dnl Autoconf wants to disallow AM_ names. We explicitly allow
  392. dnl the ones we care about.
  393. m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
  394. AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
  395. AC_REQUIRE([AC_PROG_INSTALL])dnl
  396. if test "`cd $srcdir && pwd`" != "`pwd`"; then
  397. # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
  398. # is not polluted with repeated "-I."
  399. AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
  400. # test to see if srcdir already configured
  401. if test -f $srcdir/config.status; then
  402. AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
  403. fi
  404. fi
  405. # test whether we have cygpath
  406. if test -z "$CYGPATH_W"; then
  407. if (cygpath --version) >/dev/null 2>/dev/null; then
  408. CYGPATH_W='cygpath -w'
  409. else
  410. CYGPATH_W=echo
  411. fi
  412. fi
  413. AC_SUBST([CYGPATH_W])
  414. # Define the identity of the package.
  415. dnl Distinguish between old-style and new-style calls.
  416. m4_ifval([$2],
  417. [AC_DIAGNOSE([obsolete],
  418. [$0: two- and three-arguments forms are deprecated.])
  419. m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
  420. AC_SUBST([PACKAGE], [$1])dnl
  421. AC_SUBST([VERSION], [$2])],
  422. [_AM_SET_OPTIONS([$1])dnl
  423. dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
  424. m4_if(
  425. m4_ifdef([AC_PACKAGE_NAME], [ok]):m4_ifdef([AC_PACKAGE_VERSION], [ok]),
  426. [ok:ok],,
  427. [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
  428. AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
  429. AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
  430. _AM_IF_OPTION([no-define],,
  431. [AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
  432. AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
  433. # Some tools Automake needs.
  434. AC_REQUIRE([AM_SANITY_CHECK])dnl
  435. AC_REQUIRE([AC_ARG_PROGRAM])dnl
  436. AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
  437. AM_MISSING_PROG([AUTOCONF], [autoconf])
  438. AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
  439. AM_MISSING_PROG([AUTOHEADER], [autoheader])
  440. AM_MISSING_PROG([MAKEINFO], [makeinfo])
  441. AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
  442. AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
  443. AC_REQUIRE([AC_PROG_MKDIR_P])dnl
  444. # For better backward compatibility. To be removed once Automake 1.9.x
  445. # dies out for good. For more background, see:
  446. # <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
  447. # <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
  448. AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
  449. # We need awk for the "check" target (and possibly the TAP driver). The
  450. # system "awk" is bad on some platforms.
  451. AC_REQUIRE([AC_PROG_AWK])dnl
  452. AC_REQUIRE([AC_PROG_MAKE_SET])dnl
  453. AC_REQUIRE([AM_SET_LEADING_DOT])dnl
  454. _AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
  455. [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
  456. [_AM_PROG_TAR([v7])])])
  457. _AM_IF_OPTION([no-dependencies],,
  458. [AC_PROVIDE_IFELSE([AC_PROG_CC],
  459. [_AM_DEPENDENCIES([CC])],
  460. [m4_define([AC_PROG_CC],
  461. m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
  462. AC_PROVIDE_IFELSE([AC_PROG_CXX],
  463. [_AM_DEPENDENCIES([CXX])],
  464. [m4_define([AC_PROG_CXX],
  465. m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
  466. AC_PROVIDE_IFELSE([AC_PROG_OBJC],
  467. [_AM_DEPENDENCIES([OBJC])],
  468. [m4_define([AC_PROG_OBJC],
  469. m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
  470. AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
  471. [_AM_DEPENDENCIES([OBJCXX])],
  472. [m4_define([AC_PROG_OBJCXX],
  473. m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
  474. ])
  475. AC_REQUIRE([AM_SILENT_RULES])dnl
  476. dnl The testsuite driver may need to know about EXEEXT, so add the
  477. dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen. This
  478. dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
  479. AC_CONFIG_COMMANDS_PRE(dnl
  480. [m4_provide_if([_AM_COMPILER_EXEEXT],
  481. [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
  482. # POSIX will say in a future version that running "rm -f" with no argument
  483. # is OK; and we want to be able to make that assumption in our Makefile
  484. # recipes. So use an aggressive probe to check that the usage we want is
  485. # actually supported "in the wild" to an acceptable degree.
  486. # See automake bug#10828.
  487. # To make any issue more visible, cause the running configure to be aborted
  488. # by default if the 'rm' program in use doesn't match our expectations; the
  489. # user can still override this though.
  490. if rm -f && rm -fr && rm -rf; then : OK; else
  491. cat >&2 <<'END'
  492. Oops!
  493. Your 'rm' program seems unable to run without file operands specified
  494. on the command line, even when the '-f' option is present. This is contrary
  495. to the behaviour of most rm programs out there, and not conforming with
  496. the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
  497. Please tell bug-automake@gnu.org about your system, including the value
  498. of your $PATH and any error possibly output before this message. This
  499. can help us improve future automake versions.
  500. END
  501. if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
  502. echo 'Configuration will proceed anyway, since you have set the' >&2
  503. echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
  504. echo >&2
  505. else
  506. cat >&2 <<'END'
  507. Aborting the configuration process, to ensure you take notice of the issue.
  508. You can download and install GNU coreutils to get an 'rm' implementation
  509. that behaves properly: <https://www.gnu.org/software/coreutils/>.
  510. If you want to complete the configuration process using your problematic
  511. 'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
  512. to "yes", and re-run configure.
  513. END
  514. AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
  515. fi
  516. fi
  517. dnl The trailing newline in this macro's definition is deliberate, for
  518. dnl backward compatibility and to allow trailing 'dnl'-style comments
  519. dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
  520. ])
  521. dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion. Do not
  522. dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
  523. dnl mangled by Autoconf and run in a shell conditional statement.
  524. m4_define([_AC_COMPILER_EXEEXT],
  525. m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
  526. # When config.status generates a header, we must update the stamp-h file.
  527. # This file resides in the same directory as the config header
  528. # that is generated. The stamp files are numbered to have different names.
  529. # Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
  530. # loop where config.status creates the headers, so we can generate
  531. # our stamp files there.
  532. AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
  533. [# Compute $1's index in $config_headers.
  534. _am_arg=$1
  535. _am_stamp_count=1
  536. for _am_header in $config_headers :; do
  537. case $_am_header in
  538. $_am_arg | $_am_arg:* )
  539. break ;;
  540. * )
  541. _am_stamp_count=`expr $_am_stamp_count + 1` ;;
  542. esac
  543. done
  544. echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
  545. # Copyright (C) 2001-2020 Free Software Foundation, Inc.
  546. #
  547. # This file is free software; the Free Software Foundation
  548. # gives unlimited permission to copy and/or distribute it,
  549. # with or without modifications, as long as this notice is preserved.
  550. # AM_PROG_INSTALL_SH
  551. # ------------------
  552. # Define $install_sh.
  553. AC_DEFUN([AM_PROG_INSTALL_SH],
  554. [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
  555. if test x"${install_sh+set}" != xset; then
  556. case $am_aux_dir in
  557. *\ * | *\ *)
  558. install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
  559. *)
  560. install_sh="\${SHELL} $am_aux_dir/install-sh"
  561. esac
  562. fi
  563. AC_SUBST([install_sh])])
  564. # Copyright (C) 2003-2020 Free Software Foundation, Inc.
  565. #
  566. # This file is free software; the Free Software Foundation
  567. # gives unlimited permission to copy and/or distribute it,
  568. # with or without modifications, as long as this notice is preserved.
  569. # Check whether the underlying file-system supports filenames
  570. # with a leading dot. For instance MS-DOS doesn't.
  571. AC_DEFUN([AM_SET_LEADING_DOT],
  572. [rm -rf .tst 2>/dev/null
  573. mkdir .tst 2>/dev/null
  574. if test -d .tst; then
  575. am__leading_dot=.
  576. else
  577. am__leading_dot=_
  578. fi
  579. rmdir .tst 2>/dev/null
  580. AC_SUBST([am__leading_dot])])
  581. # Check to see how 'make' treats includes. -*- Autoconf -*-
  582. # Copyright (C) 2001-2020 Free Software Foundation, Inc.
  583. #
  584. # This file is free software; the Free Software Foundation
  585. # gives unlimited permission to copy and/or distribute it,
  586. # with or without modifications, as long as this notice is preserved.
  587. # AM_MAKE_INCLUDE()
  588. # -----------------
  589. # Check whether make has an 'include' directive that can support all
  590. # the idioms we need for our automatic dependency tracking code.
  591. AC_DEFUN([AM_MAKE_INCLUDE],
  592. [AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
  593. cat > confinc.mk << 'END'
  594. am__doit:
  595. @echo this is the am__doit target >confinc.out
  596. .PHONY: am__doit
  597. END
  598. am__include="#"
  599. am__quote=
  600. # BSD make does it like this.
  601. echo '.include "confinc.mk" # ignored' > confmf.BSD
  602. # Other make implementations (GNU, Solaris 10, AIX) do it like this.
  603. echo 'include confinc.mk # ignored' > confmf.GNU
  604. _am_result=no
  605. for s in GNU BSD; do
  606. AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
  607. AS_CASE([$?:`cat confinc.out 2>/dev/null`],
  608. ['0:this is the am__doit target'],
  609. [AS_CASE([$s],
  610. [BSD], [am__include='.include' am__quote='"'],
  611. [am__include='include' am__quote=''])])
  612. if test "$am__include" != "#"; then
  613. _am_result="yes ($s style)"
  614. break
  615. fi
  616. done
  617. rm -f confinc.* confmf.*
  618. AC_MSG_RESULT([${_am_result}])
  619. AC_SUBST([am__include])])
  620. AC_SUBST([am__quote])])
  621. # Fake the existence of programs that GNU maintainers use. -*- Autoconf -*-
  622. # Copyright (C) 1997-2020 Free Software Foundation, Inc.
  623. #
  624. # This file is free software; the Free Software Foundation
  625. # gives unlimited permission to copy and/or distribute it,
  626. # with or without modifications, as long as this notice is preserved.
  627. # AM_MISSING_PROG(NAME, PROGRAM)
  628. # ------------------------------
  629. AC_DEFUN([AM_MISSING_PROG],
  630. [AC_REQUIRE([AM_MISSING_HAS_RUN])
  631. $1=${$1-"${am_missing_run}$2"}
  632. AC_SUBST($1)])
  633. # AM_MISSING_HAS_RUN
  634. # ------------------
  635. # Define MISSING if not defined so far and test if it is modern enough.
  636. # If it is, set am_missing_run to use it, otherwise, to nothing.
  637. AC_DEFUN([AM_MISSING_HAS_RUN],
  638. [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
  639. AC_REQUIRE_AUX_FILE([missing])dnl
  640. if test x"${MISSING+set}" != xset; then
  641. MISSING="\${SHELL} '$am_aux_dir/missing'"
  642. fi
  643. # Use eval to expand $SHELL
  644. if eval "$MISSING --is-lightweight"; then
  645. am_missing_run="$MISSING "
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  647. am_missing_run=
  648. AC_MSG_WARN(['missing' script is too old or missing])
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  650. ])
  651. # Helper functions for option handling. -*- Autoconf -*-
  652. # Copyright (C) 2001-2020 Free Software Foundation, Inc.
  653. #
  654. # This file is free software; the Free Software Foundation
  655. # gives unlimited permission to copy and/or distribute it,
  656. # with or without modifications, as long as this notice is preserved.
  657. # _AM_MANGLE_OPTION(NAME)
  658. # -----------------------
  659. AC_DEFUN([_AM_MANGLE_OPTION],
  660. [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
  661. # _AM_SET_OPTION(NAME)
  662. # --------------------
  663. # Set option NAME. Presently that only means defining a flag for this option.
  664. AC_DEFUN([_AM_SET_OPTION],
  665. [m4_define(_AM_MANGLE_OPTION([$1]), [1])])
  666. # _AM_SET_OPTIONS(OPTIONS)
  667. # ------------------------
  668. # OPTIONS is a space-separated list of Automake options.
  669. AC_DEFUN([_AM_SET_OPTIONS],
  670. [m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
  671. # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
  672. # -------------------------------------------
  673. # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
  674. AC_DEFUN([_AM_IF_OPTION],
  675. [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
  676. # Copyright (C) 1999-2020 Free Software Foundation, Inc.
  677. #
  678. # This file is free software; the Free Software Foundation
  679. # gives unlimited permission to copy and/or distribute it,
  680. # with or without modifications, as long as this notice is preserved.
  681. # _AM_PROG_CC_C_O
  682. # ---------------
  683. # Like AC_PROG_CC_C_O, but changed for automake. We rewrite AC_PROG_CC
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  685. AC_DEFUN([_AM_PROG_CC_C_O],
  686. [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
  687. AC_REQUIRE_AUX_FILE([compile])dnl
  688. AC_LANG_PUSH([C])dnl
  689. AC_CACHE_CHECK(
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  691. [am_cv_prog_cc_c_o],
  692. [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
  693. # Make sure it works both with $CC and with simple cc.
  694. # Following AC_PROG_CC_C_O, we do the test twice because some
  695. # compilers refuse to overwrite an existing .o file with -o,
  696. # though they will create one.
  697. am_cv_prog_cc_c_o=yes
  698. for am_i in 1 2; do
  699. if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
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  701. : OK
  702. else
  703. am_cv_prog_cc_c_o=no
  704. break
  705. fi
  706. done
  707. rm -f core conftest*
  708. unset am_i])
  709. if test "$am_cv_prog_cc_c_o" != yes; then
  710. # Losing compiler, so override with the script.
  711. # FIXME: It is wrong to rewrite CC.
  712. # But if we don't then we get into trouble of one sort or another.
  713. # A longer-term fix would be to have automake use am__CC in this case,
  714. # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
  715. CC="$am_aux_dir/compile $CC"
  716. fi
  717. AC_LANG_POP([C])])
  718. # For backward compatibility.
  719. AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
  720. # Copyright (C) 2001-2020 Free Software Foundation, Inc.
  721. #
  722. # This file is free software; the Free Software Foundation
  723. # gives unlimited permission to copy and/or distribute it,
  724. # with or without modifications, as long as this notice is preserved.
  725. # AM_RUN_LOG(COMMAND)
  726. # -------------------
  727. # Run COMMAND, save the exit status in ac_status, and log it.
  728. # (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
  729. AC_DEFUN([AM_RUN_LOG],
  730. [{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
  731. ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
  732. ac_status=$?
  733. echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
  734. (exit $ac_status); }])
  735. # Check to make sure that the build environment is sane. -*- Autoconf -*-
  736. # Copyright (C) 1996-2020 Free Software Foundation, Inc.
  737. #
  738. # This file is free software; the Free Software Foundation
  739. # gives unlimited permission to copy and/or distribute it,
  740. # with or without modifications, as long as this notice is preserved.
  741. # AM_SANITY_CHECK
  742. # ---------------
  743. AC_DEFUN([AM_SANITY_CHECK],
  744. [AC_MSG_CHECKING([whether build environment is sane])
  745. # Reject unsafe characters in $srcdir or the absolute working directory
  746. # name. Accept space and tab only in the latter.
  747. am_lf='
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  751. AC_MSG_ERROR([unsafe absolute working directory name]);;
  752. esac
  753. case $srcdir in
  754. *[[\\\"\#\$\&\'\`$am_lf\ \ ]]*)
  755. AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
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  757. # Do 'set' in a subshell so we don't clobber the current shell's
  758. # arguments. Must try -L first in case configure is actually a
  759. # symlink; some systems play weird games with the mod time of symlinks
  760. # (eg FreeBSD returns the mod time of the symlink's containing
  761. # directory).
  762. if (
  763. am_has_slept=no
  764. for am_try in 1 2; do
  765. echo "timestamp, slept: $am_has_slept" > conftest.file
  766. set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
  767. if test "$[*]" = "X"; then
  768. # -L didn't work.
  769. set X `ls -t "$srcdir/configure" conftest.file`
  770. fi
  771. if test "$[*]" != "X $srcdir/configure conftest.file" \
  772. && test "$[*]" != "X conftest.file $srcdir/configure"; then
  773. # If neither matched, then we have a broken ls. This can happen
  774. # if, for instance, CONFIG_SHELL is bash and it inherits a
  775. # broken ls alias from the environment. This has actually
  776. # happened. Such a system could not be considered "sane".
  777. AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken
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  779. fi
  780. if test "$[2]" = conftest.file || test $am_try -eq 2; then
  781. break
  782. fi
  783. # Just in case.
  784. sleep 1
  785. am_has_slept=yes
  786. done
  787. test "$[2]" = conftest.file
  788. )
  789. then
  790. # Ok.
  791. :
  792. else
  793. AC_MSG_ERROR([newly created file is older than distributed files!
  794. Check your system clock])
  795. fi
  796. AC_MSG_RESULT([yes])
  797. # If we didn't sleep, we still need to ensure time stamps of config.status and
  798. # generated files are strictly newer.
  799. am_sleep_pid=
  800. if grep 'slept: no' conftest.file >/dev/null 2>&1; then
  801. ( sleep 1 ) &
  802. am_sleep_pid=$!
  803. fi
  804. AC_CONFIG_COMMANDS_PRE(
  805. [AC_MSG_CHECKING([that generated files are newer than configure])
  806. if test -n "$am_sleep_pid"; then
  807. # Hide warnings about reused PIDs.
  808. wait $am_sleep_pid 2>/dev/null
  809. fi
  810. AC_MSG_RESULT([done])])
  811. rm -f conftest.file
  812. ])
  813. # Copyright (C) 2009-2020 Free Software Foundation, Inc.
  814. #
  815. # This file is free software; the Free Software Foundation
  816. # gives unlimited permission to copy and/or distribute it,
  817. # with or without modifications, as long as this notice is preserved.
  818. # AM_SILENT_RULES([DEFAULT])
  819. # --------------------------
  820. # Enable less verbose build rules; with the default set to DEFAULT
  821. # ("yes" being less verbose, "no" or empty being verbose).
  822. AC_DEFUN([AM_SILENT_RULES],
  823. [AC_ARG_ENABLE([silent-rules], [dnl
  824. AS_HELP_STRING(
  825. [--enable-silent-rules],
  826. [less verbose build output (undo: "make V=1")])
  827. AS_HELP_STRING(
  828. [--disable-silent-rules],
  829. [verbose build output (undo: "make V=0")])dnl
  830. ])
  831. case $enable_silent_rules in @%:@ (((
  832. yes) AM_DEFAULT_VERBOSITY=0;;
  833. no) AM_DEFAULT_VERBOSITY=1;;
  834. *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
  835. esac
  836. dnl
  837. dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
  838. dnl do not support nested variable expansions.
  839. dnl See automake bug#9928 and bug#10237.
  840. am_make=${MAKE-make}
  841. AC_CACHE_CHECK([whether $am_make supports nested variables],
  842. [am_cv_make_support_nested_variables],
  843. [if AS_ECHO([['TRUE=$(BAR$(V))
  844. BAR0=false
  845. BAR1=true
  846. V=1
  847. am__doit:
  848. @$(TRUE)
  849. .PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
  850. am_cv_make_support_nested_variables=yes
  851. else
  852. am_cv_make_support_nested_variables=no
  853. fi])
  854. if test $am_cv_make_support_nested_variables = yes; then
  855. dnl Using '$V' instead of '$(V)' breaks IRIX make.
  856. AM_V='$(V)'
  857. AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
  858. else
  859. AM_V=$AM_DEFAULT_VERBOSITY
  860. AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
  861. fi
  862. AC_SUBST([AM_V])dnl
  863. AM_SUBST_NOTMAKE([AM_V])dnl
  864. AC_SUBST([AM_DEFAULT_V])dnl
  865. AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
  866. AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
  867. AM_BACKSLASH='\'
  868. AC_SUBST([AM_BACKSLASH])dnl
  869. _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
  870. ])
  871. # Copyright (C) 2001-2020 Free Software Foundation, Inc.
  872. #
  873. # This file is free software; the Free Software Foundation
  874. # gives unlimited permission to copy and/or distribute it,
  875. # with or without modifications, as long as this notice is preserved.
  876. # AM_PROG_INSTALL_STRIP
  877. # ---------------------
  878. # One issue with vendor 'install' (even GNU) is that you can't
  879. # specify the program used to strip binaries. This is especially
  880. # annoying in cross-compiling environments, where the build's strip
  881. # is unlikely to handle the host's binaries.
  882. # Fortunately install-sh will honor a STRIPPROG variable, so we
  883. # always use install-sh in "make install-strip", and initialize
  884. # STRIPPROG with the value of the STRIP variable (set by the user).
  885. AC_DEFUN([AM_PROG_INSTALL_STRIP],
  886. [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
  887. # Installed binaries are usually stripped using 'strip' when the user
  888. # run "make install-strip". However 'strip' might not be the right
  889. # tool to use in cross-compilation environments, therefore Automake
  890. # will honor the 'STRIP' environment variable to overrule this program.
  891. dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
  892. if test "$cross_compiling" != no; then
  893. AC_CHECK_TOOL([STRIP], [strip], :)
  894. fi
  895. INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
  896. AC_SUBST([INSTALL_STRIP_PROGRAM])])
  897. # Copyright (C) 2006-2020 Free Software Foundation, Inc.
  898. #
  899. # This file is free software; the Free Software Foundation
  900. # gives unlimited permission to copy and/or distribute it,
  901. # with or without modifications, as long as this notice is preserved.
  902. # _AM_SUBST_NOTMAKE(VARIABLE)
  903. # ---------------------------
  904. # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
  905. # This macro is traced by Automake.
  906. AC_DEFUN([_AM_SUBST_NOTMAKE])
  907. # AM_SUBST_NOTMAKE(VARIABLE)
  908. # --------------------------
  909. # Public sister of _AM_SUBST_NOTMAKE.
  910. AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
  911. # Check how to create a tarball. -*- Autoconf -*-
  912. # Copyright (C) 2004-2020 Free Software Foundation, Inc.
  913. #
  914. # This file is free software; the Free Software Foundation
  915. # gives unlimited permission to copy and/or distribute it,
  916. # with or without modifications, as long as this notice is preserved.
  917. # _AM_PROG_TAR(FORMAT)
  918. # --------------------
  919. # Check how to create a tarball in format FORMAT.
  920. # FORMAT should be one of 'v7', 'ustar', or 'pax'.
  921. #
  922. # Substitute a variable $(am__tar) that is a command
  923. # writing to stdout a FORMAT-tarball containing the directory
  924. # $tardir.
  925. # tardir=directory && $(am__tar) > result.tar
  926. #
  927. # Substitute a variable $(am__untar) that extract such
  928. # a tarball read from stdin.
  929. # $(am__untar) < result.tar
  930. #
  931. AC_DEFUN([_AM_PROG_TAR],
  932. [# Always define AMTAR for backward compatibility. Yes, it's still used
  933. # in the wild :-( We should find a proper way to deprecate it ...
  934. AC_SUBST([AMTAR], ['$${TAR-tar}'])
  935. # We'll loop over all known methods to create a tar archive until one works.
  936. _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
  937. m4_if([$1], [v7],
  938. [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
  939. [m4_case([$1],
  940. [ustar],
  941. [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
  942. # There is notably a 21 bits limit for the UID and the GID. In fact,
  943. # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
  944. # and bug#13588).
  945. am_max_uid=2097151 # 2^21 - 1
  946. am_max_gid=$am_max_uid
  947. # The $UID and $GID variables are not portable, so we need to resort
  948. # to the POSIX-mandated id(1) utility. Errors in the 'id' calls
  949. # below are definitely unexpected, so allow the users to see them
  950. # (that is, avoid stderr redirection).
  951. am_uid=`id -u || echo unknown`
  952. am_gid=`id -g || echo unknown`
  953. AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
  954. if test $am_uid -le $am_max_uid; then
  955. AC_MSG_RESULT([yes])
  956. else
  957. AC_MSG_RESULT([no])
  958. _am_tools=none
  959. fi
  960. AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
  961. if test $am_gid -le $am_max_gid; then
  962. AC_MSG_RESULT([yes])
  963. else
  964. AC_MSG_RESULT([no])
  965. _am_tools=none
  966. fi],
  967. [pax],
  968. [],
  969. [m4_fatal([Unknown tar format])])
  970. AC_MSG_CHECKING([how to create a $1 tar archive])
  971. # Go ahead even if we have the value already cached. We do so because we
  972. # need to set the values for the 'am__tar' and 'am__untar' variables.
  973. _am_tools=${am_cv_prog_tar_$1-$_am_tools}
  974. for _am_tool in $_am_tools; do
  975. case $_am_tool in
  976. gnutar)
  977. for _am_tar in tar gnutar gtar; do
  978. AM_RUN_LOG([$_am_tar --version]) && break
  979. done
  980. am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
  981. am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
  982. am__untar="$_am_tar -xf -"
  983. ;;
  984. plaintar)
  985. # Must skip GNU tar: if it does not support --format= it doesn't create
  986. # ustar tarball either.
  987. (tar --version) >/dev/null 2>&1 && continue
  988. am__tar='tar chf - "$$tardir"'
  989. am__tar_='tar chf - "$tardir"'
  990. am__untar='tar xf -'
  991. ;;
  992. pax)
  993. am__tar='pax -L -x $1 -w "$$tardir"'
  994. am__tar_='pax -L -x $1 -w "$tardir"'
  995. am__untar='pax -r'
  996. ;;
  997. cpio)
  998. am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
  999. am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
  1000. am__untar='cpio -i -H $1 -d'
  1001. ;;
  1002. none)
  1003. am__tar=false
  1004. am__tar_=false
  1005. am__untar=false
  1006. ;;
  1007. esac
  1008. # If the value was cached, stop now. We just wanted to have am__tar
  1009. # and am__untar set.
  1010. test -n "${am_cv_prog_tar_$1}" && break
  1011. # tar/untar a dummy directory, and stop if the command works.
  1012. rm -rf conftest.dir
  1013. mkdir conftest.dir
  1014. echo GrepMe > conftest.dir/file
  1015. AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
  1016. rm -rf conftest.dir
  1017. if test -s conftest.tar; then
  1018. AM_RUN_LOG([$am__untar <conftest.tar])
  1019. AM_RUN_LOG([cat conftest.dir/file])
  1020. grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
  1021. fi
  1022. done
  1023. rm -rf conftest.dir
  1024. AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
  1025. AC_MSG_RESULT([$am_cv_prog_tar_$1])])
  1026. AC_SUBST([am__tar])
  1027. AC_SUBST([am__untar])
  1028. ]) # _AM_PROG_TAR