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  1. # generated automatically by aclocal 1.14.1 -*- Autoconf -*-
  2. # Copyright (C) 1996-2013 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) 2002-2013 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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  99. # AM_CONDITIONAL -*- Autoconf -*-
  100. # Copyright (C) 1997-2013 Free Software Foundation, Inc.
  101. #
  102. # This file is free software; the Free Software Foundation
  103. # gives unlimited permission to copy and/or distribute it,
  104. # with or without modifications, as long as this notice is preserved.
  105. # AM_CONDITIONAL(NAME, SHELL-CONDITION)
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  108. AC_DEFUN([AM_CONDITIONAL],
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  124. AC_CONFIG_COMMANDS_PRE(
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  129. # Do all the work for Automake. -*- Autoconf -*-
  130. # Copyright (C) 1996-2013 Free Software Foundation, Inc.
  131. #
  132. # This file is free software; the Free Software Foundation
  133. # gives unlimited permission to copy and/or distribute it,
  134. # with or without modifications, as long as this notice is preserved.
  135. # This macro actually does too much. Some checks are only needed if
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  137. dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
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  139. m4_defn([AC_PROG_CC])
  140. [_AM_PROG_CC_C_O
  141. ])
  142. # AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
  143. # AM_INIT_AUTOMAKE([OPTIONS])
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  146. # call (pre autoconf-2.50), which is being phased out. PACKAGE
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  149. # We support both call styles for the transition. After
  150. # the next Automake release, Autoconf can make the AC_INIT
  151. # arguments mandatory, and then we can depend on a new Autoconf
  152. # release and drop the old call support.
  153. AC_DEFUN([AM_INIT_AUTOMAKE],
  154. [AC_PREREQ([2.65])dnl
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  157. m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
  158. AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
  159. AC_REQUIRE([AC_PROG_INSTALL])dnl
  160. if test "`cd $srcdir && pwd`" != "`pwd`"; then
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  162. # is not polluted with repeated "-I."
  163. AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
  164. # test to see if srcdir already configured
  165. if test -f $srcdir/config.status; then
  166. AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
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  168. fi
  169. # test whether we have cygpath
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  171. if (cygpath --version) >/dev/null 2>/dev/null; then
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  180. m4_ifval([$2],
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  183. m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
  184. AC_SUBST([PACKAGE], [$1])dnl
  185. AC_SUBST([VERSION], [$2])],
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  187. dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
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  189. m4_ifdef([AC_PACKAGE_NAME], [ok]):m4_ifdef([AC_PACKAGE_VERSION], [ok]),
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  191. [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
  192. AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
  193. AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
  194. _AM_IF_OPTION([no-define],,
  195. [AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
  196. AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
  197. # Some tools Automake needs.
  198. AC_REQUIRE([AM_SANITY_CHECK])dnl
  199. AC_REQUIRE([AC_ARG_PROGRAM])dnl
  200. AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
  201. AM_MISSING_PROG([AUTOCONF], [autoconf])
  202. AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
  203. AM_MISSING_PROG([AUTOHEADER], [autoheader])
  204. AM_MISSING_PROG([MAKEINFO], [makeinfo])
  205. AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
  206. AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
  207. AC_REQUIRE([AC_PROG_MKDIR_P])dnl
  208. # For better backward compatibility. To be removed once Automake 1.9.x
  209. # dies out for good. For more background, see:
  210. # <http://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
  211. # <http://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
  212. AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
  213. # We need awk for the "check" target. The system "awk" is bad on
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  215. AC_REQUIRE([AC_PROG_AWK])dnl
  216. AC_REQUIRE([AC_PROG_MAKE_SET])dnl
  217. AC_REQUIRE([AM_SET_LEADING_DOT])dnl
  218. _AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
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  221. _AM_IF_OPTION([no-dependencies],,
  222. [AC_PROVIDE_IFELSE([AC_PROG_CC],
  223. [_AM_DEPENDENCIES([CC])],
  224. [m4_define([AC_PROG_CC],
  225. m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
  226. AC_PROVIDE_IFELSE([AC_PROG_CXX],
  227. [_AM_DEPENDENCIES([CXX])],
  228. [m4_define([AC_PROG_CXX],
  229. m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
  230. AC_PROVIDE_IFELSE([AC_PROG_OBJC],
  231. [_AM_DEPENDENCIES([OBJC])],
  232. [m4_define([AC_PROG_OBJC],
  233. m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
  234. AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
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  238. ])
  239. AC_REQUIRE([AM_SILENT_RULES])dnl
  240. dnl The testsuite driver may need to know about EXEEXT, so add the
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  246. # POSIX will say in a future version that running "rm -f" with no argument
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  251. # To make any issue more visible, cause the running configure to be aborted
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  256. Oops!
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  264. END
  265. if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
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  267. echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
  268. echo >&2
  269. else
  270. cat >&2 <<'END'
  271. Aborting the configuration process, to ensure you take notice of the issue.
  272. You can download and install GNU coreutils to get an 'rm' implementation
  273. that behaves properly: <http://www.gnu.org/software/coreutils/>.
  274. If you want to complete the configuration process using your problematic
  275. 'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
  276. to "yes", and re-run configure.
  277. END
  278. AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
  279. fi
  280. fi])
  281. dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion. Do not
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  284. m4_define([_AC_COMPILER_EXEEXT],
  285. m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
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  305. # Copyright (C) 2001-2013 Free Software Foundation, Inc.
  306. #
  307. # This file is free software; the Free Software Foundation
  308. # gives unlimited permission to copy and/or distribute it,
  309. # with or without modifications, as long as this notice is preserved.
  310. # AM_PROG_INSTALL_SH
  311. # ------------------
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  313. AC_DEFUN([AM_PROG_INSTALL_SH],
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  315. if test x"${install_sh}" != xset; then
  316. case $am_aux_dir in
  317. *\ * | *\ *)
  318. install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
  319. *)
  320. install_sh="\${SHELL} $am_aux_dir/install-sh"
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  323. AC_SUBST([install_sh])])
  324. # Copyright (C) 2003-2013 Free Software Foundation, Inc.
  325. #
  326. # This file is free software; the Free Software Foundation
  327. # gives unlimited permission to copy and/or distribute it,
  328. # with or without modifications, as long as this notice is preserved.
  329. # Check whether the underlying file-system supports filenames
  330. # with a leading dot. For instance MS-DOS doesn't.
  331. AC_DEFUN([AM_SET_LEADING_DOT],
  332. [rm -rf .tst 2>/dev/null
  333. mkdir .tst 2>/dev/null
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  339. rmdir .tst 2>/dev/null
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  341. # Fake the existence of programs that GNU maintainers use. -*- Autoconf -*-
  342. # Copyright (C) 1997-2013 Free Software Foundation, Inc.
  343. #
  344. # This file is free software; the Free Software Foundation
  345. # gives unlimited permission to copy and/or distribute it,
  346. # with or without modifications, as long as this notice is preserved.
  347. # AM_MISSING_PROG(NAME, PROGRAM)
  348. # ------------------------------
  349. AC_DEFUN([AM_MISSING_PROG],
  350. [AC_REQUIRE([AM_MISSING_HAS_RUN])
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  352. AC_SUBST($1)])
  353. # AM_MISSING_HAS_RUN
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  357. AC_DEFUN([AM_MISSING_HAS_RUN],
  358. [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
  359. AC_REQUIRE_AUX_FILE([missing])dnl
  360. if test x"${MISSING+set}" != xset; then
  361. case $am_aux_dir in
  362. *\ * | *\ *)
  363. MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
  364. *)
  365. MISSING="\${SHELL} $am_aux_dir/missing" ;;
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  367. fi
  368. # Use eval to expand $SHELL
  369. if eval "$MISSING --is-lightweight"; then
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  376. # Helper functions for option handling. -*- Autoconf -*-
  377. # Copyright (C) 2001-2013 Free Software Foundation, Inc.
  378. #
  379. # This file is free software; the Free Software Foundation
  380. # gives unlimited permission to copy and/or distribute it,
  381. # with or without modifications, as long as this notice is preserved.
  382. # _AM_MANGLE_OPTION(NAME)
  383. # -----------------------
  384. AC_DEFUN([_AM_MANGLE_OPTION],
  385. [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
  386. # _AM_SET_OPTION(NAME)
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  396. # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
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  399. AC_DEFUN([_AM_IF_OPTION],
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  401. # Copyright (C) 1999-2013 Free Software Foundation, Inc.
  402. #
  403. # This file is free software; the Free Software Foundation
  404. # gives unlimited permission to copy and/or distribute it,
  405. # with or without modifications, as long as this notice is preserved.
  406. # _AM_PROG_CC_C_O
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  432. rm -f core conftest*
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  434. if test "$am_cv_prog_cc_c_o" != yes; then
  435. # Losing compiler, so override with the script.
  436. # FIXME: It is wrong to rewrite CC.
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  440. CC="$am_aux_dir/compile $CC"
  441. fi
  442. AC_LANG_POP([C])])
  443. # For backward compatibility.
  444. AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
  445. # Copyright (C) 2001-2013 Free Software Foundation, Inc.
  446. #
  447. # This file is free software; the Free Software Foundation
  448. # gives unlimited permission to copy and/or distribute it,
  449. # with or without modifications, as long as this notice is preserved.
  450. # AM_RUN_LOG(COMMAND)
  451. # -------------------
  452. # Run COMMAND, save the exit status in ac_status, and log it.
  453. # (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
  454. AC_DEFUN([AM_RUN_LOG],
  455. [{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
  456. ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
  457. ac_status=$?
  458. echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
  459. (exit $ac_status); }])
  460. # Check to make sure that the build environment is sane. -*- Autoconf -*-
  461. # Copyright (C) 1996-2013 Free Software Foundation, Inc.
  462. #
  463. # This file is free software; the Free Software Foundation
  464. # gives unlimited permission to copy and/or distribute it,
  465. # with or without modifications, as long as this notice is preserved.
  466. # AM_SANITY_CHECK
  467. # ---------------
  468. AC_DEFUN([AM_SANITY_CHECK],
  469. [AC_MSG_CHECKING([whether build environment is sane])
  470. # Reject unsafe characters in $srcdir or the absolute working directory
  471. # name. Accept space and tab only in the latter.
  472. am_lf='
  473. '
  474. case `pwd` in
  475. *[[\\\"\#\$\&\'\`$am_lf]]*)
  476. AC_MSG_ERROR([unsafe absolute working directory name]);;
  477. esac
  478. case $srcdir in
  479. *[[\\\"\#\$\&\'\`$am_lf\ \ ]]*)
  480. AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
  481. esac
  482. # Do 'set' in a subshell so we don't clobber the current shell's
  483. # arguments. Must try -L first in case configure is actually a
  484. # symlink; some systems play weird games with the mod time of symlinks
  485. # (eg FreeBSD returns the mod time of the symlink's containing
  486. # directory).
  487. if (
  488. am_has_slept=no
  489. for am_try in 1 2; do
  490. echo "timestamp, slept: $am_has_slept" > conftest.file
  491. set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
  492. if test "$[*]" = "X"; then
  493. # -L didn't work.
  494. set X `ls -t "$srcdir/configure" conftest.file`
  495. fi
  496. if test "$[*]" != "X $srcdir/configure conftest.file" \
  497. && test "$[*]" != "X conftest.file $srcdir/configure"; then
  498. # If neither matched, then we have a broken ls. This can happen
  499. # if, for instance, CONFIG_SHELL is bash and it inherits a
  500. # broken ls alias from the environment. This has actually
  501. # happened. Such a system could not be considered "sane".
  502. AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken
  503. alias in your environment])
  504. fi
  505. if test "$[2]" = conftest.file || test $am_try -eq 2; then
  506. break
  507. fi
  508. # Just in case.
  509. sleep 1
  510. am_has_slept=yes
  511. done
  512. test "$[2]" = conftest.file
  513. )
  514. then
  515. # Ok.
  516. :
  517. else
  518. AC_MSG_ERROR([newly created file is older than distributed files!
  519. Check your system clock])
  520. fi
  521. AC_MSG_RESULT([yes])
  522. # If we didn't sleep, we still need to ensure time stamps of config.status and
  523. # generated files are strictly newer.
  524. am_sleep_pid=
  525. if grep 'slept: no' conftest.file >/dev/null 2>&1; then
  526. ( sleep 1 ) &
  527. am_sleep_pid=$!
  528. fi
  529. AC_CONFIG_COMMANDS_PRE(
  530. [AC_MSG_CHECKING([that generated files are newer than configure])
  531. if test -n "$am_sleep_pid"; then
  532. # Hide warnings about reused PIDs.
  533. wait $am_sleep_pid 2>/dev/null
  534. fi
  535. AC_MSG_RESULT([done])])
  536. rm -f conftest.file
  537. ])
  538. # Copyright (C) 2009-2013 Free Software Foundation, Inc.
  539. #
  540. # This file is free software; the Free Software Foundation
  541. # gives unlimited permission to copy and/or distribute it,
  542. # with or without modifications, as long as this notice is preserved.
  543. # AM_SILENT_RULES([DEFAULT])
  544. # --------------------------
  545. # Enable less verbose build rules; with the default set to DEFAULT
  546. # ("yes" being less verbose, "no" or empty being verbose).
  547. AC_DEFUN([AM_SILENT_RULES],
  548. [AC_ARG_ENABLE([silent-rules], [dnl
  549. AS_HELP_STRING(
  550. [--enable-silent-rules],
  551. [less verbose build output (undo: "make V=1")])
  552. AS_HELP_STRING(
  553. [--disable-silent-rules],
  554. [verbose build output (undo: "make V=0")])dnl
  555. ])
  556. case $enable_silent_rules in @%:@ (((
  557. yes) AM_DEFAULT_VERBOSITY=0;;
  558. no) AM_DEFAULT_VERBOSITY=1;;
  559. *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
  560. esac
  561. dnl
  562. dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
  563. dnl do not support nested variable expansions.
  564. dnl See automake bug#9928 and bug#10237.
  565. am_make=${MAKE-make}
  566. AC_CACHE_CHECK([whether $am_make supports nested variables],
  567. [am_cv_make_support_nested_variables],
  568. [if AS_ECHO([['TRUE=$(BAR$(V))
  569. BAR0=false
  570. BAR1=true
  571. V=1
  572. am__doit:
  573. @$(TRUE)
  574. .PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
  575. am_cv_make_support_nested_variables=yes
  576. else
  577. am_cv_make_support_nested_variables=no
  578. fi])
  579. if test $am_cv_make_support_nested_variables = yes; then
  580. dnl Using '$V' instead of '$(V)' breaks IRIX make.
  581. AM_V='$(V)'
  582. AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
  583. else
  584. AM_V=$AM_DEFAULT_VERBOSITY
  585. AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
  586. fi
  587. AC_SUBST([AM_V])dnl
  588. AM_SUBST_NOTMAKE([AM_V])dnl
  589. AC_SUBST([AM_DEFAULT_V])dnl
  590. AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
  591. AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
  592. AM_BACKSLASH='\'
  593. AC_SUBST([AM_BACKSLASH])dnl
  594. _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
  595. ])
  596. # Copyright (C) 2001-2013 Free Software Foundation, Inc.
  597. #
  598. # This file is free software; the Free Software Foundation
  599. # gives unlimited permission to copy and/or distribute it,
  600. # with or without modifications, as long as this notice is preserved.
  601. # AM_PROG_INSTALL_STRIP
  602. # ---------------------
  603. # One issue with vendor 'install' (even GNU) is that you can't
  604. # specify the program used to strip binaries. This is especially
  605. # annoying in cross-compiling environments, where the build's strip
  606. # is unlikely to handle the host's binaries.
  607. # Fortunately install-sh will honor a STRIPPROG variable, so we
  608. # always use install-sh in "make install-strip", and initialize
  609. # STRIPPROG with the value of the STRIP variable (set by the user).
  610. AC_DEFUN([AM_PROG_INSTALL_STRIP],
  611. [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
  612. # Installed binaries are usually stripped using 'strip' when the user
  613. # run "make install-strip". However 'strip' might not be the right
  614. # tool to use in cross-compilation environments, therefore Automake
  615. # will honor the 'STRIP' environment variable to overrule this program.
  616. dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
  617. if test "$cross_compiling" != no; then
  618. AC_CHECK_TOOL([STRIP], [strip], :)
  619. fi
  620. INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
  621. AC_SUBST([INSTALL_STRIP_PROGRAM])])
  622. # Copyright (C) 2006-2013 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_SUBST_NOTMAKE(VARIABLE)
  628. # ---------------------------
  629. # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
  630. # This macro is traced by Automake.
  631. AC_DEFUN([_AM_SUBST_NOTMAKE])
  632. # AM_SUBST_NOTMAKE(VARIABLE)
  633. # --------------------------
  634. # Public sister of _AM_SUBST_NOTMAKE.
  635. AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
  636. # Check how to create a tarball. -*- Autoconf -*-
  637. # Copyright (C) 2004-2013 Free Software Foundation, Inc.
  638. #
  639. # This file is free software; the Free Software Foundation
  640. # gives unlimited permission to copy and/or distribute it,
  641. # with or without modifications, as long as this notice is preserved.
  642. # _AM_PROG_TAR(FORMAT)
  643. # --------------------
  644. # Check how to create a tarball in format FORMAT.
  645. # FORMAT should be one of 'v7', 'ustar', or 'pax'.
  646. #
  647. # Substitute a variable $(am__tar) that is a command
  648. # writing to stdout a FORMAT-tarball containing the directory
  649. # $tardir.
  650. # tardir=directory && $(am__tar) > result.tar
  651. #
  652. # Substitute a variable $(am__untar) that extract such
  653. # a tarball read from stdin.
  654. # $(am__untar) < result.tar
  655. #
  656. AC_DEFUN([_AM_PROG_TAR],
  657. [# Always define AMTAR for backward compatibility. Yes, it's still used
  658. # in the wild :-( We should find a proper way to deprecate it ...
  659. AC_SUBST([AMTAR], ['$${TAR-tar}'])
  660. # We'll loop over all known methods to create a tar archive until one works.
  661. _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
  662. m4_if([$1], [v7],
  663. [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
  664. [m4_case([$1],
  665. [ustar],
  666. [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
  667. # There is notably a 21 bits limit for the UID and the GID. In fact,
  668. # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
  669. # and bug#13588).
  670. am_max_uid=2097151 # 2^21 - 1
  671. am_max_gid=$am_max_uid
  672. # The $UID and $GID variables are not portable, so we need to resort
  673. # to the POSIX-mandated id(1) utility. Errors in the 'id' calls
  674. # below are definitely unexpected, so allow the users to see them
  675. # (that is, avoid stderr redirection).
  676. am_uid=`id -u || echo unknown`
  677. am_gid=`id -g || echo unknown`
  678. AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
  679. if test $am_uid -le $am_max_uid; then
  680. AC_MSG_RESULT([yes])
  681. else
  682. AC_MSG_RESULT([no])
  683. _am_tools=none
  684. fi
  685. AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
  686. if test $am_gid -le $am_max_gid; then
  687. AC_MSG_RESULT([yes])
  688. else
  689. AC_MSG_RESULT([no])
  690. _am_tools=none
  691. fi],
  692. [pax],
  693. [],
  694. [m4_fatal([Unknown tar format])])
  695. AC_MSG_CHECKING([how to create a $1 tar archive])
  696. # Go ahead even if we have the value already cached. We do so because we
  697. # need to set the values for the 'am__tar' and 'am__untar' variables.
  698. _am_tools=${am_cv_prog_tar_$1-$_am_tools}
  699. for _am_tool in $_am_tools; do
  700. case $_am_tool in
  701. gnutar)
  702. for _am_tar in tar gnutar gtar; do
  703. AM_RUN_LOG([$_am_tar --version]) && break
  704. done
  705. am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
  706. am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
  707. am__untar="$_am_tar -xf -"
  708. ;;
  709. plaintar)
  710. # Must skip GNU tar: if it does not support --format= it doesn't create
  711. # ustar tarball either.
  712. (tar --version) >/dev/null 2>&1 && continue
  713. am__tar='tar chf - "$$tardir"'
  714. am__tar_='tar chf - "$tardir"'
  715. am__untar='tar xf -'
  716. ;;
  717. pax)
  718. am__tar='pax -L -x $1 -w "$$tardir"'
  719. am__tar_='pax -L -x $1 -w "$tardir"'
  720. am__untar='pax -r'
  721. ;;
  722. cpio)
  723. am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
  724. am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
  725. am__untar='cpio -i -H $1 -d'
  726. ;;
  727. none)
  728. am__tar=false
  729. am__tar_=false
  730. am__untar=false
  731. ;;
  732. esac
  733. # If the value was cached, stop now. We just wanted to have am__tar
  734. # and am__untar set.
  735. test -n "${am_cv_prog_tar_$1}" && break
  736. # tar/untar a dummy directory, and stop if the command works.
  737. rm -rf conftest.dir
  738. mkdir conftest.dir
  739. echo GrepMe > conftest.dir/file
  740. AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
  741. rm -rf conftest.dir
  742. if test -s conftest.tar; then
  743. AM_RUN_LOG([$am__untar <conftest.tar])
  744. AM_RUN_LOG([cat conftest.dir/file])
  745. grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
  746. fi
  747. done
  748. rm -rf conftest.dir
  749. AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
  750. AC_MSG_RESULT([$am_cv_prog_tar_$1])])
  751. AC_SUBST([am__tar])
  752. AC_SUBST([am__untar])
  753. ]) # _AM_PROG_TAR