aclocal.m4 29 KB

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  1. # generated automatically by aclocal 1.15.1 -*- Autoconf -*-
  2. # Copyright (C) 1996-2017 Free Software Foundation, Inc.
  3. # This file is free software; the Free Software Foundation
  4. # gives unlimited permission to copy and/or distribute it,
  5. # with or without modifications, as long as this notice is preserved.
  6. # This program is distributed in the hope that it will be useful,
  7. # but WITHOUT ANY WARRANTY, to the extent permitted by law; without
  8. # even the implied warranty of MERCHANTABILITY or FITNESS FOR A
  9. # PARTICULAR PURPOSE.
  10. m4_ifndef([AC_CONFIG_MACRO_DIRS], [m4_defun([_AM_CONFIG_MACRO_DIRS], [])m4_defun([AC_CONFIG_MACRO_DIRS], [_AM_CONFIG_MACRO_DIRS($@)])])
  11. m4_ifndef([AC_AUTOCONF_VERSION],
  12. [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
  13. m4_if(m4_defn([AC_AUTOCONF_VERSION]), [2.69],,
  14. [m4_warning([this file was generated for autoconf 2.69.
  15. You have another version of autoconf. It may work, but is not guaranteed to.
  16. If you have problems, you may need to regenerate the build system entirely.
  17. To do so, use the procedure documented by the package, typically 'autoreconf'.])])
  18. # Copyright (C) 2002-2017 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.
  23. # AM_AUTOMAKE_VERSION(VERSION)
  24. # ----------------------------
  25. # Automake X.Y traces this macro to ensure aclocal.m4 has been
  26. # generated from the m4 files accompanying Automake X.Y.
  27. # (This private macro should not be called outside this file.)
  28. AC_DEFUN([AM_AUTOMAKE_VERSION],
  29. [am__api_version='1.15'
  30. dnl Some users find AM_AUTOMAKE_VERSION and mistake it for a way to
  31. dnl require some minimum version. Point them to the right macro.
  32. m4_if([$1], [1.15.1], [],
  33. [AC_FATAL([Do not call $0, use AM_INIT_AUTOMAKE([$1]).])])dnl
  34. ])
  35. # _AM_AUTOCONF_VERSION(VERSION)
  36. # -----------------------------
  37. # aclocal traces this macro to find the Autoconf version.
  38. # This is a private macro too. Using m4_define simplifies
  39. # the logic in aclocal, which can simply ignore this definition.
  40. m4_define([_AM_AUTOCONF_VERSION], [])
  41. # AM_SET_CURRENT_AUTOMAKE_VERSION
  42. # -------------------------------
  43. # Call AM_AUTOMAKE_VERSION and AM_AUTOMAKE_VERSION so they can be traced.
  44. # This function is AC_REQUIREd by AM_INIT_AUTOMAKE.
  45. AC_DEFUN([AM_SET_CURRENT_AUTOMAKE_VERSION],
  46. [AM_AUTOMAKE_VERSION([1.15.1])dnl
  47. m4_ifndef([AC_AUTOCONF_VERSION],
  48. [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
  49. _AM_AUTOCONF_VERSION(m4_defn([AC_AUTOCONF_VERSION]))])
  50. # AM_AUX_DIR_EXPAND -*- Autoconf -*-
  51. # Copyright (C) 2001-2017 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.
  56. # For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets
  57. # $ac_aux_dir to '$srcdir/foo'. In other projects, it is set to
  58. # '$srcdir', '$srcdir/..', or '$srcdir/../..'.
  59. #
  60. # Of course, Automake must honor this variable whenever it calls a
  61. # tool from the auxiliary directory. The problem is that $srcdir (and
  62. # therefore $ac_aux_dir as well) can be either absolute or relative,
  63. # depending on how configure is run. This is pretty annoying, since
  64. # it makes $ac_aux_dir quite unusable in subdirectories: in the top
  65. # source directory, any form will work fine, but in subdirectories a
  66. # relative path needs to be adjusted first.
  67. #
  68. # $ac_aux_dir/missing
  69. # fails when called from a subdirectory if $ac_aux_dir is relative
  70. # $top_srcdir/$ac_aux_dir/missing
  71. # fails if $ac_aux_dir is absolute,
  72. # fails when called from a subdirectory in a VPATH build with
  73. # a relative $ac_aux_dir
  74. #
  75. # The reason of the latter failure is that $top_srcdir and $ac_aux_dir
  76. # are both prefixed by $srcdir. In an in-source build this is usually
  77. # harmless because $srcdir is '.', but things will broke when you
  78. # start a VPATH build or use an absolute $srcdir.
  79. #
  80. # So we could use something similar to $top_srcdir/$ac_aux_dir/missing,
  81. # iff we strip the leading $srcdir from $ac_aux_dir. That would be:
  82. # am_aux_dir='\$(top_srcdir)/'`expr "$ac_aux_dir" : "$srcdir//*\(.*\)"`
  83. # and then we would define $MISSING as
  84. # MISSING="\${SHELL} $am_aux_dir/missing"
  85. # This will work as long as MISSING is not called from configure, because
  86. # unfortunately $(top_srcdir) has no meaning in configure.
  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.
  89. #
  90. # Another solution, used here, is to always expand $ac_aux_dir to an
  91. # absolute PATH. The drawback is that using absolute paths prevent a
  92. # configured tree to be moved without reconfiguration.
  93. AC_DEFUN([AM_AUX_DIR_EXPAND],
  94. [AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
  95. # Expand $ac_aux_dir to an absolute path.
  96. am_aux_dir=`cd "$ac_aux_dir" && pwd`
  97. ])
  98. # AM_CONDITIONAL -*- Autoconf -*-
  99. # Copyright (C) 1997-2017 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 "$1" was never defined.
  126. Usually this means the macro was only invoked conditionally.]])
  127. fi])])
  128. # Do all the work for Automake. -*- Autoconf -*-
  129. # Copyright (C) 1996-2017 Free Software Foundation, Inc.
  130. #
  131. # This file is free software; the Free Software Foundation
  132. # gives unlimited permission to copy and/or distribute it,
  133. # with or without modifications, as long as this notice is preserved.
  134. # This macro actually does too much. Some checks are only needed if
  135. # your package does certain things. But this isn't really a big deal.
  136. dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
  137. m4_define([AC_PROG_CC],
  138. m4_defn([AC_PROG_CC])
  139. [_AM_PROG_CC_C_O
  140. ])
  141. # AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
  142. # AM_INIT_AUTOMAKE([OPTIONS])
  143. # -----------------------------------------------
  144. # The call with PACKAGE and VERSION arguments is the old style
  145. # call (pre autoconf-2.50), which is being phased out. PACKAGE
  146. # and VERSION should now be passed to AC_INIT and removed from
  147. # the call to AM_INIT_AUTOMAKE.
  148. # We support both call styles for the transition. After
  149. # the next Automake release, Autoconf can make the AC_INIT
  150. # arguments mandatory, and then we can depend on a new Autoconf
  151. # release and drop the old call support.
  152. AC_DEFUN([AM_INIT_AUTOMAKE],
  153. [AC_PREREQ([2.65])dnl
  154. dnl Autoconf wants to disallow AM_ names. We explicitly allow
  155. dnl the ones we care about.
  156. m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
  157. AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
  158. AC_REQUIRE([AC_PROG_INSTALL])dnl
  159. if test "`cd $srcdir && pwd`" != "`pwd`"; then
  160. # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
  161. # is not polluted with repeated "-I."
  162. AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
  163. # test to see if srcdir already configured
  164. if test -f $srcdir/config.status; then
  165. AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
  166. fi
  167. fi
  168. # test whether we have cygpath
  169. if test -z "$CYGPATH_W"; then
  170. if (cygpath --version) >/dev/null 2>/dev/null; then
  171. CYGPATH_W='cygpath -w'
  172. else
  173. CYGPATH_W=echo
  174. fi
  175. fi
  176. AC_SUBST([CYGPATH_W])
  177. # Define the identity of the package.
  178. dnl Distinguish between old-style and new-style calls.
  179. m4_ifval([$2],
  180. [AC_DIAGNOSE([obsolete],
  181. [$0: two- and three-arguments forms are deprecated.])
  182. m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
  183. AC_SUBST([PACKAGE], [$1])dnl
  184. AC_SUBST([VERSION], [$2])],
  185. [_AM_SET_OPTIONS([$1])dnl
  186. dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
  187. m4_if(
  188. m4_ifdef([AC_PACKAGE_NAME], [ok]):m4_ifdef([AC_PACKAGE_VERSION], [ok]),
  189. [ok:ok],,
  190. [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
  191. AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
  192. AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
  193. _AM_IF_OPTION([no-define],,
  194. [AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
  195. AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
  196. # Some tools Automake needs.
  197. AC_REQUIRE([AM_SANITY_CHECK])dnl
  198. AC_REQUIRE([AC_ARG_PROGRAM])dnl
  199. AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
  200. AM_MISSING_PROG([AUTOCONF], [autoconf])
  201. AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
  202. AM_MISSING_PROG([AUTOHEADER], [autoheader])
  203. AM_MISSING_PROG([MAKEINFO], [makeinfo])
  204. AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
  205. AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
  206. AC_REQUIRE([AC_PROG_MKDIR_P])dnl
  207. # For better backward compatibility. To be removed once Automake 1.9.x
  208. # dies out for good. For more background, see:
  209. # <http://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
  210. # <http://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
  211. AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
  212. # We need awk for the "check" target (and possibly the TAP driver). The
  213. # system "awk" is bad on some platforms.
  214. AC_REQUIRE([AC_PROG_AWK])dnl
  215. AC_REQUIRE([AC_PROG_MAKE_SET])dnl
  216. AC_REQUIRE([AM_SET_LEADING_DOT])dnl
  217. _AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
  218. [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
  219. [_AM_PROG_TAR([v7])])])
  220. _AM_IF_OPTION([no-dependencies],,
  221. [AC_PROVIDE_IFELSE([AC_PROG_CC],
  222. [_AM_DEPENDENCIES([CC])],
  223. [m4_define([AC_PROG_CC],
  224. m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
  225. AC_PROVIDE_IFELSE([AC_PROG_CXX],
  226. [_AM_DEPENDENCIES([CXX])],
  227. [m4_define([AC_PROG_CXX],
  228. m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
  229. AC_PROVIDE_IFELSE([AC_PROG_OBJC],
  230. [_AM_DEPENDENCIES([OBJC])],
  231. [m4_define([AC_PROG_OBJC],
  232. m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
  233. AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
  234. [_AM_DEPENDENCIES([OBJCXX])],
  235. [m4_define([AC_PROG_OBJCXX],
  236. m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
  237. ])
  238. AC_REQUIRE([AM_SILENT_RULES])dnl
  239. dnl The testsuite driver may need to know about EXEEXT, so add the
  240. dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen. This
  241. dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
  242. AC_CONFIG_COMMANDS_PRE(dnl
  243. [m4_provide_if([_AM_COMPILER_EXEEXT],
  244. [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
  245. # POSIX will say in a future version that running "rm -f" with no argument
  246. # is OK; and we want to be able to make that assumption in our Makefile
  247. # recipes. So use an aggressive probe to check that the usage we want is
  248. # actually supported "in the wild" to an acceptable degree.
  249. # See automake bug#10828.
  250. # To make any issue more visible, cause the running configure to be aborted
  251. # by default if the 'rm' program in use doesn't match our expectations; the
  252. # user can still override this though.
  253. if rm -f && rm -fr && rm -rf; then : OK; else
  254. cat >&2 <<'END'
  255. Oops!
  256. Your 'rm' program seems unable to run without file operands specified
  257. on the command line, even when the '-f' option is present. This is contrary
  258. to the behaviour of most rm programs out there, and not conforming with
  259. the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
  260. Please tell bug-automake@gnu.org about your system, including the value
  261. of your $PATH and any error possibly output before this message. This
  262. can help us improve future automake versions.
  263. END
  264. if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
  265. echo 'Configuration will proceed anyway, since you have set the' >&2
  266. echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
  267. echo >&2
  268. else
  269. cat >&2 <<'END'
  270. Aborting the configuration process, to ensure you take notice of the issue.
  271. You can download and install GNU coreutils to get an 'rm' implementation
  272. that behaves properly: <http://www.gnu.org/software/coreutils/>.
  273. If you want to complete the configuration process using your problematic
  274. 'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
  275. to "yes", and re-run configure.
  276. END
  277. AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
  278. fi
  279. fi
  280. dnl The trailing newline in this macro's definition is deliberate, for
  281. dnl backward compatibility and to allow trailing 'dnl'-style comments
  282. dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
  283. ])
  284. dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion. Do not
  285. dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
  286. dnl mangled by Autoconf and run in a shell conditional statement.
  287. m4_define([_AC_COMPILER_EXEEXT],
  288. m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
  289. # When config.status generates a header, we must update the stamp-h file.
  290. # This file resides in the same directory as the config header
  291. # that is generated. The stamp files are numbered to have different names.
  292. # Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
  293. # loop where config.status creates the headers, so we can generate
  294. # our stamp files there.
  295. AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
  296. [# Compute $1's index in $config_headers.
  297. _am_arg=$1
  298. _am_stamp_count=1
  299. for _am_header in $config_headers :; do
  300. case $_am_header in
  301. $_am_arg | $_am_arg:* )
  302. break ;;
  303. * )
  304. _am_stamp_count=`expr $_am_stamp_count + 1` ;;
  305. esac
  306. done
  307. echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
  308. # Copyright (C) 2001-2017 Free Software Foundation, Inc.
  309. #
  310. # This file is free software; the Free Software Foundation
  311. # gives unlimited permission to copy and/or distribute it,
  312. # with or without modifications, as long as this notice is preserved.
  313. # AM_PROG_INSTALL_SH
  314. # ------------------
  315. # Define $install_sh.
  316. AC_DEFUN([AM_PROG_INSTALL_SH],
  317. [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
  318. if test x"${install_sh+set}" != xset; then
  319. case $am_aux_dir in
  320. *\ * | *\ *)
  321. install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
  322. *)
  323. install_sh="\${SHELL} $am_aux_dir/install-sh"
  324. esac
  325. fi
  326. AC_SUBST([install_sh])])
  327. # Add --enable-maintainer-mode option to configure. -*- Autoconf -*-
  328. # From Jim Meyering
  329. # Copyright (C) 1996-2017 Free Software Foundation, Inc.
  330. #
  331. # This file is free software; the Free Software Foundation
  332. # gives unlimited permission to copy and/or distribute it,
  333. # with or without modifications, as long as this notice is preserved.
  334. # AM_MAINTAINER_MODE([DEFAULT-MODE])
  335. # ----------------------------------
  336. # Control maintainer-specific portions of Makefiles.
  337. # Default is to disable them, unless 'enable' is passed literally.
  338. # For symmetry, 'disable' may be passed as well. Anyway, the user
  339. # can override the default with the --enable/--disable switch.
  340. AC_DEFUN([AM_MAINTAINER_MODE],
  341. [m4_case(m4_default([$1], [disable]),
  342. [enable], [m4_define([am_maintainer_other], [disable])],
  343. [disable], [m4_define([am_maintainer_other], [enable])],
  344. [m4_define([am_maintainer_other], [enable])
  345. m4_warn([syntax], [unexpected argument to AM@&t@_MAINTAINER_MODE: $1])])
  346. AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
  347. dnl maintainer-mode's default is 'disable' unless 'enable' is passed
  348. AC_ARG_ENABLE([maintainer-mode],
  349. [AS_HELP_STRING([--]am_maintainer_other[-maintainer-mode],
  350. am_maintainer_other[ make rules and dependencies not useful
  351. (and sometimes confusing) to the casual installer])],
  352. [USE_MAINTAINER_MODE=$enableval],
  353. [USE_MAINTAINER_MODE=]m4_if(am_maintainer_other, [enable], [no], [yes]))
  354. AC_MSG_RESULT([$USE_MAINTAINER_MODE])
  355. AM_CONDITIONAL([MAINTAINER_MODE], [test $USE_MAINTAINER_MODE = yes])
  356. MAINT=$MAINTAINER_MODE_TRUE
  357. AC_SUBST([MAINT])dnl
  358. ]
  359. )
  360. # Fake the existence of programs that GNU maintainers use. -*- Autoconf -*-
  361. # Copyright (C) 1997-2017 Free Software Foundation, Inc.
  362. #
  363. # This file is free software; the Free Software Foundation
  364. # gives unlimited permission to copy and/or distribute it,
  365. # with or without modifications, as long as this notice is preserved.
  366. # AM_MISSING_PROG(NAME, PROGRAM)
  367. # ------------------------------
  368. AC_DEFUN([AM_MISSING_PROG],
  369. [AC_REQUIRE([AM_MISSING_HAS_RUN])
  370. $1=${$1-"${am_missing_run}$2"}
  371. AC_SUBST($1)])
  372. # AM_MISSING_HAS_RUN
  373. # ------------------
  374. # Define MISSING if not defined so far and test if it is modern enough.
  375. # If it is, set am_missing_run to use it, otherwise, to nothing.
  376. AC_DEFUN([AM_MISSING_HAS_RUN],
  377. [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
  378. AC_REQUIRE_AUX_FILE([missing])dnl
  379. if test x"${MISSING+set}" != xset; then
  380. case $am_aux_dir in
  381. *\ * | *\ *)
  382. MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
  383. *)
  384. MISSING="\${SHELL} $am_aux_dir/missing" ;;
  385. esac
  386. fi
  387. # Use eval to expand $SHELL
  388. if eval "$MISSING --is-lightweight"; then
  389. am_missing_run="$MISSING "
  390. else
  391. am_missing_run=
  392. AC_MSG_WARN(['missing' script is too old or missing])
  393. fi
  394. ])
  395. # Helper functions for option handling. -*- Autoconf -*-
  396. # Copyright (C) 2001-2017 Free Software Foundation, Inc.
  397. #
  398. # This file is free software; the Free Software Foundation
  399. # gives unlimited permission to copy and/or distribute it,
  400. # with or without modifications, as long as this notice is preserved.
  401. # _AM_MANGLE_OPTION(NAME)
  402. # -----------------------
  403. AC_DEFUN([_AM_MANGLE_OPTION],
  404. [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
  405. # _AM_SET_OPTION(NAME)
  406. # --------------------
  407. # Set option NAME. Presently that only means defining a flag for this option.
  408. AC_DEFUN([_AM_SET_OPTION],
  409. [m4_define(_AM_MANGLE_OPTION([$1]), [1])])
  410. # _AM_SET_OPTIONS(OPTIONS)
  411. # ------------------------
  412. # OPTIONS is a space-separated list of Automake options.
  413. AC_DEFUN([_AM_SET_OPTIONS],
  414. [m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
  415. # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
  416. # -------------------------------------------
  417. # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
  418. AC_DEFUN([_AM_IF_OPTION],
  419. [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
  420. # Check to make sure that the build environment is sane. -*- Autoconf -*-
  421. # Copyright (C) 1996-2017 Free Software Foundation, Inc.
  422. #
  423. # This file is free software; the Free Software Foundation
  424. # gives unlimited permission to copy and/or distribute it,
  425. # with or without modifications, as long as this notice is preserved.
  426. # AM_SANITY_CHECK
  427. # ---------------
  428. AC_DEFUN([AM_SANITY_CHECK],
  429. [AC_MSG_CHECKING([whether build environment is sane])
  430. # Reject unsafe characters in $srcdir or the absolute working directory
  431. # name. Accept space and tab only in the latter.
  432. am_lf='
  433. '
  434. case `pwd` in
  435. *[[\\\"\#\$\&\'\`$am_lf]]*)
  436. AC_MSG_ERROR([unsafe absolute working directory name]);;
  437. esac
  438. case $srcdir in
  439. *[[\\\"\#\$\&\'\`$am_lf\ \ ]]*)
  440. AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
  441. esac
  442. # Do 'set' in a subshell so we don't clobber the current shell's
  443. # arguments. Must try -L first in case configure is actually a
  444. # symlink; some systems play weird games with the mod time of symlinks
  445. # (eg FreeBSD returns the mod time of the symlink's containing
  446. # directory).
  447. if (
  448. am_has_slept=no
  449. for am_try in 1 2; do
  450. echo "timestamp, slept: $am_has_slept" > conftest.file
  451. set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
  452. if test "$[*]" = "X"; then
  453. # -L didn't work.
  454. set X `ls -t "$srcdir/configure" conftest.file`
  455. fi
  456. if test "$[*]" != "X $srcdir/configure conftest.file" \
  457. && test "$[*]" != "X conftest.file $srcdir/configure"; then
  458. # If neither matched, then we have a broken ls. This can happen
  459. # if, for instance, CONFIG_SHELL is bash and it inherits a
  460. # broken ls alias from the environment. This has actually
  461. # happened. Such a system could not be considered "sane".
  462. AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken
  463. alias in your environment])
  464. fi
  465. if test "$[2]" = conftest.file || test $am_try -eq 2; then
  466. break
  467. fi
  468. # Just in case.
  469. sleep 1
  470. am_has_slept=yes
  471. done
  472. test "$[2]" = conftest.file
  473. )
  474. then
  475. # Ok.
  476. :
  477. else
  478. AC_MSG_ERROR([newly created file is older than distributed files!
  479. Check your system clock])
  480. fi
  481. AC_MSG_RESULT([yes])
  482. # If we didn't sleep, we still need to ensure time stamps of config.status and
  483. # generated files are strictly newer.
  484. am_sleep_pid=
  485. if grep 'slept: no' conftest.file >/dev/null 2>&1; then
  486. ( sleep 1 ) &
  487. am_sleep_pid=$!
  488. fi
  489. AC_CONFIG_COMMANDS_PRE(
  490. [AC_MSG_CHECKING([that generated files are newer than configure])
  491. if test -n "$am_sleep_pid"; then
  492. # Hide warnings about reused PIDs.
  493. wait $am_sleep_pid 2>/dev/null
  494. fi
  495. AC_MSG_RESULT([done])])
  496. rm -f conftest.file
  497. ])
  498. # Copyright (C) 2009-2017 Free Software Foundation, Inc.
  499. #
  500. # This file is free software; the Free Software Foundation
  501. # gives unlimited permission to copy and/or distribute it,
  502. # with or without modifications, as long as this notice is preserved.
  503. # AM_SILENT_RULES([DEFAULT])
  504. # --------------------------
  505. # Enable less verbose build rules; with the default set to DEFAULT
  506. # ("yes" being less verbose, "no" or empty being verbose).
  507. AC_DEFUN([AM_SILENT_RULES],
  508. [AC_ARG_ENABLE([silent-rules], [dnl
  509. AS_HELP_STRING(
  510. [--enable-silent-rules],
  511. [less verbose build output (undo: "make V=1")])
  512. AS_HELP_STRING(
  513. [--disable-silent-rules],
  514. [verbose build output (undo: "make V=0")])dnl
  515. ])
  516. case $enable_silent_rules in @%:@ (((
  517. yes) AM_DEFAULT_VERBOSITY=0;;
  518. no) AM_DEFAULT_VERBOSITY=1;;
  519. *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
  520. esac
  521. dnl
  522. dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
  523. dnl do not support nested variable expansions.
  524. dnl See automake bug#9928 and bug#10237.
  525. am_make=${MAKE-make}
  526. AC_CACHE_CHECK([whether $am_make supports nested variables],
  527. [am_cv_make_support_nested_variables],
  528. [if AS_ECHO([['TRUE=$(BAR$(V))
  529. BAR0=false
  530. BAR1=true
  531. V=1
  532. am__doit:
  533. @$(TRUE)
  534. .PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
  535. am_cv_make_support_nested_variables=yes
  536. else
  537. am_cv_make_support_nested_variables=no
  538. fi])
  539. if test $am_cv_make_support_nested_variables = yes; then
  540. dnl Using '$V' instead of '$(V)' breaks IRIX make.
  541. AM_V='$(V)'
  542. AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
  543. else
  544. AM_V=$AM_DEFAULT_VERBOSITY
  545. AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
  546. fi
  547. AC_SUBST([AM_V])dnl
  548. AM_SUBST_NOTMAKE([AM_V])dnl
  549. AC_SUBST([AM_DEFAULT_V])dnl
  550. AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
  551. AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
  552. AM_BACKSLASH='\'
  553. AC_SUBST([AM_BACKSLASH])dnl
  554. _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
  555. ])
  556. # Copyright (C) 2001-2017 Free Software Foundation, Inc.
  557. #
  558. # This file is free software; the Free Software Foundation
  559. # gives unlimited permission to copy and/or distribute it,
  560. # with or without modifications, as long as this notice is preserved.
  561. # AM_PROG_INSTALL_STRIP
  562. # ---------------------
  563. # One issue with vendor 'install' (even GNU) is that you can't
  564. # specify the program used to strip binaries. This is especially
  565. # annoying in cross-compiling environments, where the build's strip
  566. # is unlikely to handle the host's binaries.
  567. # Fortunately install-sh will honor a STRIPPROG variable, so we
  568. # always use install-sh in "make install-strip", and initialize
  569. # STRIPPROG with the value of the STRIP variable (set by the user).
  570. AC_DEFUN([AM_PROG_INSTALL_STRIP],
  571. [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
  572. # Installed binaries are usually stripped using 'strip' when the user
  573. # run "make install-strip". However 'strip' might not be the right
  574. # tool to use in cross-compilation environments, therefore Automake
  575. # will honor the 'STRIP' environment variable to overrule this program.
  576. dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
  577. if test "$cross_compiling" != no; then
  578. AC_CHECK_TOOL([STRIP], [strip], :)
  579. fi
  580. INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
  581. AC_SUBST([INSTALL_STRIP_PROGRAM])])
  582. # Copyright (C) 2006-2017 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_SUBST_NOTMAKE(VARIABLE)
  588. # ---------------------------
  589. # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
  590. # This macro is traced by Automake.
  591. AC_DEFUN([_AM_SUBST_NOTMAKE])
  592. # AM_SUBST_NOTMAKE(VARIABLE)
  593. # --------------------------
  594. # Public sister of _AM_SUBST_NOTMAKE.
  595. AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
  596. # Check how to create a tarball. -*- Autoconf -*-
  597. # Copyright (C) 2004-2017 Free Software Foundation, Inc.
  598. #
  599. # This file is free software; the Free Software Foundation
  600. # gives unlimited permission to copy and/or distribute it,
  601. # with or without modifications, as long as this notice is preserved.
  602. # _AM_PROG_TAR(FORMAT)
  603. # --------------------
  604. # Check how to create a tarball in format FORMAT.
  605. # FORMAT should be one of 'v7', 'ustar', or 'pax'.
  606. #
  607. # Substitute a variable $(am__tar) that is a command
  608. # writing to stdout a FORMAT-tarball containing the directory
  609. # $tardir.
  610. # tardir=directory && $(am__tar) > result.tar
  611. #
  612. # Substitute a variable $(am__untar) that extract such
  613. # a tarball read from stdin.
  614. # $(am__untar) < result.tar
  615. #
  616. AC_DEFUN([_AM_PROG_TAR],
  617. [# Always define AMTAR for backward compatibility. Yes, it's still used
  618. # in the wild :-( We should find a proper way to deprecate it ...
  619. AC_SUBST([AMTAR], ['$${TAR-tar}'])
  620. # We'll loop over all known methods to create a tar archive until one works.
  621. _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
  622. m4_if([$1], [v7],
  623. [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
  624. [m4_case([$1],
  625. [ustar],
  626. [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
  627. # There is notably a 21 bits limit for the UID and the GID. In fact,
  628. # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
  629. # and bug#13588).
  630. am_max_uid=2097151 # 2^21 - 1
  631. am_max_gid=$am_max_uid
  632. # The $UID and $GID variables are not portable, so we need to resort
  633. # to the POSIX-mandated id(1) utility. Errors in the 'id' calls
  634. # below are definitely unexpected, so allow the users to see them
  635. # (that is, avoid stderr redirection).
  636. am_uid=`id -u || echo unknown`
  637. am_gid=`id -g || echo unknown`
  638. AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
  639. if test $am_uid -le $am_max_uid; then
  640. AC_MSG_RESULT([yes])
  641. else
  642. AC_MSG_RESULT([no])
  643. _am_tools=none
  644. fi
  645. AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
  646. if test $am_gid -le $am_max_gid; then
  647. AC_MSG_RESULT([yes])
  648. else
  649. AC_MSG_RESULT([no])
  650. _am_tools=none
  651. fi],
  652. [pax],
  653. [],
  654. [m4_fatal([Unknown tar format])])
  655. AC_MSG_CHECKING([how to create a $1 tar archive])
  656. # Go ahead even if we have the value already cached. We do so because we
  657. # need to set the values for the 'am__tar' and 'am__untar' variables.
  658. _am_tools=${am_cv_prog_tar_$1-$_am_tools}
  659. for _am_tool in $_am_tools; do
  660. case $_am_tool in
  661. gnutar)
  662. for _am_tar in tar gnutar gtar; do
  663. AM_RUN_LOG([$_am_tar --version]) && break
  664. done
  665. am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
  666. am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
  667. am__untar="$_am_tar -xf -"
  668. ;;
  669. plaintar)
  670. # Must skip GNU tar: if it does not support --format= it doesn't create
  671. # ustar tarball either.
  672. (tar --version) >/dev/null 2>&1 && continue
  673. am__tar='tar chf - "$$tardir"'
  674. am__tar_='tar chf - "$tardir"'
  675. am__untar='tar xf -'
  676. ;;
  677. pax)
  678. am__tar='pax -L -x $1 -w "$$tardir"'
  679. am__tar_='pax -L -x $1 -w "$tardir"'
  680. am__untar='pax -r'
  681. ;;
  682. cpio)
  683. am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
  684. am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
  685. am__untar='cpio -i -H $1 -d'
  686. ;;
  687. none)
  688. am__tar=false
  689. am__tar_=false
  690. am__untar=false
  691. ;;
  692. esac
  693. # If the value was cached, stop now. We just wanted to have am__tar
  694. # and am__untar set.
  695. test -n "${am_cv_prog_tar_$1}" && break
  696. # tar/untar a dummy directory, and stop if the command works.
  697. rm -rf conftest.dir
  698. mkdir conftest.dir
  699. echo GrepMe > conftest.dir/file
  700. AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
  701. rm -rf conftest.dir
  702. if test -s conftest.tar; then
  703. AM_RUN_LOG([$am__untar <conftest.tar])
  704. AM_RUN_LOG([cat conftest.dir/file])
  705. grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
  706. fi
  707. done
  708. rm -rf conftest.dir
  709. AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
  710. AC_MSG_RESULT([$am_cv_prog_tar_$1])])
  711. AC_SUBST([am__tar])
  712. AC_SUBST([am__untar])
  713. ]) # _AM_PROG_TAR
  714. m4_include([../config/lead-dot.m4])
  715. m4_include([../config/override.m4])