aclocal.m4 41 KB

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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.
  10. m4_ifndef([AC_CONFIG_MACRO_DIRS], [m4_defun([_AM_CONFIG_MACRO_DIRS], [])m4_defun([AC_CONFIG_MACRO_DIRS], [_AM_CONFIG_MACRO_DIRS($@)])])
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  18. # Copyright (C) 2002-2013 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.
  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='1.14'
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  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],
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  49. _AM_AUTOCONF_VERSION(m4_defn([AC_AUTOCONF_VERSION]))])
  50. # AM_AUX_DIR_EXPAND -*- Autoconf -*-
  51. # Copyright (C) 2001-2013 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],
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  95. AC_PREREQ([2.50])dnl
  96. # expand $ac_aux_dir to an absolute path
  97. am_aux_dir=`cd $ac_aux_dir && pwd`
  98. ])
  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)
  106. # -------------------------------------
  107. # Define a conditional.
  108. AC_DEFUN([AM_CONDITIONAL],
  109. [AC_PREREQ([2.52])dnl
  110. m4_if([$1], [TRUE], [AC_FATAL([$0: invalid condition: $1])],
  111. [$1], [FALSE], [AC_FATAL([$0: invalid condition: $1])])dnl
  112. AC_SUBST([$1_TRUE])dnl
  113. AC_SUBST([$1_FALSE])dnl
  114. _AM_SUBST_NOTMAKE([$1_TRUE])dnl
  115. _AM_SUBST_NOTMAKE([$1_FALSE])dnl
  116. m4_define([_AM_COND_VALUE_$1], [$2])dnl
  117. if $2; then
  118. $1_TRUE=
  119. $1_FALSE='#'
  120. else
  121. $1_TRUE='#'
  122. $1_FALSE=
  123. fi
  124. AC_CONFIG_COMMANDS_PRE(
  125. [if test -z "${$1_TRUE}" && test -z "${$1_FALSE}"; then
  126. AC_MSG_ERROR([[conditional "$1" was never defined.
  127. Usually this means the macro was only invoked conditionally.]])
  128. fi])])
  129. # Copyright (C) 1999-2013 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. # There are a few dirty hacks below to avoid letting 'AC_PROG_CC' be
  135. # written in clear, in which case automake, when reading aclocal.m4,
  136. # will think it sees a *use*, and therefore will trigger all it's
  137. # C support machinery. Also note that it means that autoscan, seeing
  138. # CC etc. in the Makefile, will ask for an AC_PROG_CC use...
  139. # _AM_DEPENDENCIES(NAME)
  140. # ----------------------
  141. # See how the compiler implements dependency checking.
  142. # NAME is "CC", "CXX", "OBJC", "OBJCXX", "UPC", or "GJC".
  143. # We try a few techniques and use that to set a single cache variable.
  144. #
  145. # We don't AC_REQUIRE the corresponding AC_PROG_CC since the latter was
  146. # modified to invoke _AM_DEPENDENCIES(CC); we would have a circular
  147. # dependency, and given that the user is not expected to run this macro,
  148. # just rely on AC_PROG_CC.
  149. AC_DEFUN([_AM_DEPENDENCIES],
  150. [AC_REQUIRE([AM_SET_DEPDIR])dnl
  151. AC_REQUIRE([AM_OUTPUT_DEPENDENCY_COMMANDS])dnl
  152. AC_REQUIRE([AM_MAKE_INCLUDE])dnl
  153. AC_REQUIRE([AM_DEP_TRACK])dnl
  154. m4_if([$1], [CC], [depcc="$CC" am_compiler_list=],
  155. [$1], [CXX], [depcc="$CXX" am_compiler_list=],
  156. [$1], [OBJC], [depcc="$OBJC" am_compiler_list='gcc3 gcc'],
  157. [$1], [OBJCXX], [depcc="$OBJCXX" am_compiler_list='gcc3 gcc'],
  158. [$1], [UPC], [depcc="$UPC" am_compiler_list=],
  159. [$1], [GCJ], [depcc="$GCJ" am_compiler_list='gcc3 gcc'],
  160. [depcc="$$1" am_compiler_list=])
  161. AC_CACHE_CHECK([dependency style of $depcc],
  162. [am_cv_$1_dependencies_compiler_type],
  163. [if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
  164. # We make a subdir and do the tests there. Otherwise we can end up
  165. # making bogus files that we don't know about and never remove. For
  166. # instance it was reported that on HP-UX the gcc test will end up
  167. # making a dummy file named 'D' -- because '-MD' means "put the output
  168. # in D".
  169. rm -rf conftest.dir
  170. mkdir conftest.dir
  171. # Copy depcomp to subdir because otherwise we won't find it if we're
  172. # using a relative directory.
  173. cp "$am_depcomp" conftest.dir
  174. cd conftest.dir
  175. # We will build objects and dependencies in a subdirectory because
  176. # it helps to detect inapplicable dependency modes. For instance
  177. # both Tru64's cc and ICC support -MD to output dependencies as a
  178. # side effect of compilation, but ICC will put the dependencies in
  179. # the current directory while Tru64 will put them in the object
  180. # directory.
  181. mkdir sub
  182. am_cv_$1_dependencies_compiler_type=none
  183. if test "$am_compiler_list" = ""; then
  184. am_compiler_list=`sed -n ['s/^#*\([a-zA-Z0-9]*\))$/\1/p'] < ./depcomp`
  185. fi
  186. am__universal=false
  187. m4_case([$1], [CC],
  188. [case " $depcc " in #(
  189. *\ -arch\ *\ -arch\ *) am__universal=true ;;
  190. esac],
  191. [CXX],
  192. [case " $depcc " in #(
  193. *\ -arch\ *\ -arch\ *) am__universal=true ;;
  194. esac])
  195. for depmode in $am_compiler_list; do
  196. # Setup a source with many dependencies, because some compilers
  197. # like to wrap large dependency lists on column 80 (with \), and
  198. # we should not choose a depcomp mode which is confused by this.
  199. #
  200. # We need to recreate these files for each test, as the compiler may
  201. # overwrite some of them when testing with obscure command lines.
  202. # This happens at least with the AIX C compiler.
  203. : > sub/conftest.c
  204. for i in 1 2 3 4 5 6; do
  205. echo '#include "conftst'$i'.h"' >> sub/conftest.c
  206. # Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
  207. # Solaris 10 /bin/sh.
  208. echo '/* dummy */' > sub/conftst$i.h
  209. done
  210. echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
  211. # We check with '-c' and '-o' for the sake of the "dashmstdout"
  212. # mode. It turns out that the SunPro C++ compiler does not properly
  213. # handle '-M -o', and we need to detect this. Also, some Intel
  214. # versions had trouble with output in subdirs.
  215. am__obj=sub/conftest.${OBJEXT-o}
  216. am__minus_obj="-o $am__obj"
  217. case $depmode in
  218. gcc)
  219. # This depmode causes a compiler race in universal mode.
  220. test "$am__universal" = false || continue
  221. ;;
  222. nosideeffect)
  223. # After this tag, mechanisms are not by side-effect, so they'll
  224. # only be used when explicitly requested.
  225. if test "x$enable_dependency_tracking" = xyes; then
  226. continue
  227. else
  228. break
  229. fi
  230. ;;
  231. msvc7 | msvc7msys | msvisualcpp | msvcmsys)
  232. # This compiler won't grok '-c -o', but also, the minuso test has
  233. # not run yet. These depmodes are late enough in the game, and
  234. # so weak that their functioning should not be impacted.
  235. am__obj=conftest.${OBJEXT-o}
  236. am__minus_obj=
  237. ;;
  238. none) break ;;
  239. esac
  240. if depmode=$depmode \
  241. source=sub/conftest.c object=$am__obj \
  242. depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
  243. $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
  244. >/dev/null 2>conftest.err &&
  245. grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
  246. grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
  247. grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
  248. ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
  249. # icc doesn't choke on unknown options, it will just issue warnings
  250. # or remarks (even with -Werror). So we grep stderr for any message
  251. # that says an option was ignored or not supported.
  252. # When given -MP, icc 7.0 and 7.1 complain thusly:
  253. # icc: Command line warning: ignoring option '-M'; no argument required
  254. # The diagnosis changed in icc 8.0:
  255. # icc: Command line remark: option '-MP' not supported
  256. if (grep 'ignoring option' conftest.err ||
  257. grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
  258. am_cv_$1_dependencies_compiler_type=$depmode
  259. break
  260. fi
  261. fi
  262. done
  263. cd ..
  264. rm -rf conftest.dir
  265. else
  266. am_cv_$1_dependencies_compiler_type=none
  267. fi
  268. ])
  269. AC_SUBST([$1DEPMODE], [depmode=$am_cv_$1_dependencies_compiler_type])
  270. AM_CONDITIONAL([am__fastdep$1], [
  271. test "x$enable_dependency_tracking" != xno \
  272. && test "$am_cv_$1_dependencies_compiler_type" = gcc3])
  273. ])
  274. # AM_SET_DEPDIR
  275. # -------------
  276. # Choose a directory name for dependency files.
  277. # This macro is AC_REQUIREd in _AM_DEPENDENCIES.
  278. AC_DEFUN([AM_SET_DEPDIR],
  279. [AC_REQUIRE([AM_SET_LEADING_DOT])dnl
  280. AC_SUBST([DEPDIR], ["${am__leading_dot}deps"])dnl
  281. ])
  282. # AM_DEP_TRACK
  283. # ------------
  284. AC_DEFUN([AM_DEP_TRACK],
  285. [AC_ARG_ENABLE([dependency-tracking], [dnl
  286. AS_HELP_STRING(
  287. [--enable-dependency-tracking],
  288. [do not reject slow dependency extractors])
  289. AS_HELP_STRING(
  290. [--disable-dependency-tracking],
  291. [speeds up one-time build])])
  292. if test "x$enable_dependency_tracking" != xno; then
  293. am_depcomp="$ac_aux_dir/depcomp"
  294. AMDEPBACKSLASH='\'
  295. am__nodep='_no'
  296. fi
  297. AM_CONDITIONAL([AMDEP], [test "x$enable_dependency_tracking" != xno])
  298. AC_SUBST([AMDEPBACKSLASH])dnl
  299. _AM_SUBST_NOTMAKE([AMDEPBACKSLASH])dnl
  300. AC_SUBST([am__nodep])dnl
  301. _AM_SUBST_NOTMAKE([am__nodep])dnl
  302. ])
  303. # Generate code to set up dependency tracking. -*- Autoconf -*-
  304. # Copyright (C) 1999-2013 Free Software Foundation, Inc.
  305. #
  306. # This file is free software; the Free Software Foundation
  307. # gives unlimited permission to copy and/or distribute it,
  308. # with or without modifications, as long as this notice is preserved.
  309. # _AM_OUTPUT_DEPENDENCY_COMMANDS
  310. # ------------------------------
  311. AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
  312. [{
  313. # Older Autoconf quotes --file arguments for eval, but not when files
  314. # are listed without --file. Let's play safe and only enable the eval
  315. # if we detect the quoting.
  316. case $CONFIG_FILES in
  317. *\'*) eval set x "$CONFIG_FILES" ;;
  318. *) set x $CONFIG_FILES ;;
  319. esac
  320. shift
  321. for mf
  322. do
  323. # Strip MF so we end up with the name of the file.
  324. mf=`echo "$mf" | sed -e 's/:.*$//'`
  325. # Check whether this is an Automake generated Makefile or not.
  326. # We used to match only the files named 'Makefile.in', but
  327. # some people rename them; so instead we look at the file content.
  328. # Grep'ing the first line is not enough: some people post-process
  329. # each Makefile.in and add a new line on top of each file to say so.
  330. # Grep'ing the whole file is not good either: AIX grep has a line
  331. # limit of 2048, but all sed's we know have understand at least 4000.
  332. if sed -n 's,^#.*generated by automake.*,X,p' "$mf" | grep X >/dev/null 2>&1; then
  333. dirpart=`AS_DIRNAME("$mf")`
  334. else
  335. continue
  336. fi
  337. # Extract the definition of DEPDIR, am__include, and am__quote
  338. # from the Makefile without running 'make'.
  339. DEPDIR=`sed -n 's/^DEPDIR = //p' < "$mf"`
  340. test -z "$DEPDIR" && continue
  341. am__include=`sed -n 's/^am__include = //p' < "$mf"`
  342. test -z "$am__include" && continue
  343. am__quote=`sed -n 's/^am__quote = //p' < "$mf"`
  344. # Find all dependency output files, they are included files with
  345. # $(DEPDIR) in their names. We invoke sed twice because it is the
  346. # simplest approach to changing $(DEPDIR) to its actual value in the
  347. # expansion.
  348. for file in `sed -n "
  349. s/^$am__include $am__quote\(.*(DEPDIR).*\)$am__quote"'$/\1/p' <"$mf" | \
  350. sed -e 's/\$(DEPDIR)/'"$DEPDIR"'/g'`; do
  351. # Make sure the directory exists.
  352. test -f "$dirpart/$file" && continue
  353. fdir=`AS_DIRNAME(["$file"])`
  354. AS_MKDIR_P([$dirpart/$fdir])
  355. # echo "creating $dirpart/$file"
  356. echo '# dummy' > "$dirpart/$file"
  357. done
  358. done
  359. }
  360. ])# _AM_OUTPUT_DEPENDENCY_COMMANDS
  361. # AM_OUTPUT_DEPENDENCY_COMMANDS
  362. # -----------------------------
  363. # This macro should only be invoked once -- use via AC_REQUIRE.
  364. #
  365. # This code is only required when automatic dependency tracking
  366. # is enabled. FIXME. This creates each '.P' file that we will
  367. # need in order to bootstrap the dependency handling code.
  368. AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
  369. [AC_CONFIG_COMMANDS([depfiles],
  370. [test x"$AMDEP_TRUE" != x"" || _AM_OUTPUT_DEPENDENCY_COMMANDS],
  371. [AMDEP_TRUE="$AMDEP_TRUE" ac_aux_dir="$ac_aux_dir"])
  372. ])
  373. # Do all the work for Automake. -*- Autoconf -*-
  374. # Copyright (C) 1996-2013 Free Software Foundation, Inc.
  375. #
  376. # This file is free software; the Free Software Foundation
  377. # gives unlimited permission to copy and/or distribute it,
  378. # with or without modifications, as long as this notice is preserved.
  379. # This macro actually does too much. Some checks are only needed if
  380. # your package does certain things. But this isn't really a big deal.
  381. dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
  382. m4_define([AC_PROG_CC],
  383. m4_defn([AC_PROG_CC])
  384. [_AM_PROG_CC_C_O
  385. ])
  386. # AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
  387. # AM_INIT_AUTOMAKE([OPTIONS])
  388. # -----------------------------------------------
  389. # The call with PACKAGE and VERSION arguments is the old style
  390. # call (pre autoconf-2.50), which is being phased out. PACKAGE
  391. # and VERSION should now be passed to AC_INIT and removed from
  392. # the call to AM_INIT_AUTOMAKE.
  393. # We support both call styles for the transition. After
  394. # the next Automake release, Autoconf can make the AC_INIT
  395. # arguments mandatory, and then we can depend on a new Autoconf
  396. # release and drop the old call support.
  397. AC_DEFUN([AM_INIT_AUTOMAKE],
  398. [AC_PREREQ([2.65])dnl
  399. dnl Autoconf wants to disallow AM_ names. We explicitly allow
  400. dnl the ones we care about.
  401. m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
  402. AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
  403. AC_REQUIRE([AC_PROG_INSTALL])dnl
  404. if test "`cd $srcdir && pwd`" != "`pwd`"; then
  405. # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
  406. # is not polluted with repeated "-I."
  407. AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
  408. # test to see if srcdir already configured
  409. if test -f $srcdir/config.status; then
  410. AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
  411. fi
  412. fi
  413. # test whether we have cygpath
  414. if test -z "$CYGPATH_W"; then
  415. if (cygpath --version) >/dev/null 2>/dev/null; then
  416. CYGPATH_W='cygpath -w'
  417. else
  418. CYGPATH_W=echo
  419. fi
  420. fi
  421. AC_SUBST([CYGPATH_W])
  422. # Define the identity of the package.
  423. dnl Distinguish between old-style and new-style calls.
  424. m4_ifval([$2],
  425. [AC_DIAGNOSE([obsolete],
  426. [$0: two- and three-arguments forms are deprecated.])
  427. m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
  428. AC_SUBST([PACKAGE], [$1])dnl
  429. AC_SUBST([VERSION], [$2])],
  430. [_AM_SET_OPTIONS([$1])dnl
  431. dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
  432. m4_if(
  433. m4_ifdef([AC_PACKAGE_NAME], [ok]):m4_ifdef([AC_PACKAGE_VERSION], [ok]),
  434. [ok:ok],,
  435. [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
  436. AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
  437. AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
  438. _AM_IF_OPTION([no-define],,
  439. [AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
  440. AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
  441. # Some tools Automake needs.
  442. AC_REQUIRE([AM_SANITY_CHECK])dnl
  443. AC_REQUIRE([AC_ARG_PROGRAM])dnl
  444. AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
  445. AM_MISSING_PROG([AUTOCONF], [autoconf])
  446. AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
  447. AM_MISSING_PROG([AUTOHEADER], [autoheader])
  448. AM_MISSING_PROG([MAKEINFO], [makeinfo])
  449. AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
  450. AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
  451. AC_REQUIRE([AC_PROG_MKDIR_P])dnl
  452. # For better backward compatibility. To be removed once Automake 1.9.x
  453. # dies out for good. For more background, see:
  454. # <http://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
  455. # <http://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
  456. AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
  457. # We need awk for the "check" target. The system "awk" is bad on
  458. # some platforms.
  459. AC_REQUIRE([AC_PROG_AWK])dnl
  460. AC_REQUIRE([AC_PROG_MAKE_SET])dnl
  461. AC_REQUIRE([AM_SET_LEADING_DOT])dnl
  462. _AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
  463. [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
  464. [_AM_PROG_TAR([v7])])])
  465. _AM_IF_OPTION([no-dependencies],,
  466. [AC_PROVIDE_IFELSE([AC_PROG_CC],
  467. [_AM_DEPENDENCIES([CC])],
  468. [m4_define([AC_PROG_CC],
  469. m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
  470. AC_PROVIDE_IFELSE([AC_PROG_CXX],
  471. [_AM_DEPENDENCIES([CXX])],
  472. [m4_define([AC_PROG_CXX],
  473. m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
  474. AC_PROVIDE_IFELSE([AC_PROG_OBJC],
  475. [_AM_DEPENDENCIES([OBJC])],
  476. [m4_define([AC_PROG_OBJC],
  477. m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
  478. AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
  479. [_AM_DEPENDENCIES([OBJCXX])],
  480. [m4_define([AC_PROG_OBJCXX],
  481. m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
  482. ])
  483. AC_REQUIRE([AM_SILENT_RULES])dnl
  484. dnl The testsuite driver may need to know about EXEEXT, so add the
  485. dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen. This
  486. dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
  487. AC_CONFIG_COMMANDS_PRE(dnl
  488. [m4_provide_if([_AM_COMPILER_EXEEXT],
  489. [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
  490. # POSIX will say in a future version that running "rm -f" with no argument
  491. # is OK; and we want to be able to make that assumption in our Makefile
  492. # recipes. So use an aggressive probe to check that the usage we want is
  493. # actually supported "in the wild" to an acceptable degree.
  494. # See automake bug#10828.
  495. # To make any issue more visible, cause the running configure to be aborted
  496. # by default if the 'rm' program in use doesn't match our expectations; the
  497. # user can still override this though.
  498. if rm -f && rm -fr && rm -rf; then : OK; else
  499. cat >&2 <<'END'
  500. Oops!
  501. Your 'rm' program seems unable to run without file operands specified
  502. on the command line, even when the '-f' option is present. This is contrary
  503. to the behaviour of most rm programs out there, and not conforming with
  504. the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
  505. Please tell bug-automake@gnu.org about your system, including the value
  506. of your $PATH and any error possibly output before this message. This
  507. can help us improve future automake versions.
  508. END
  509. if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
  510. echo 'Configuration will proceed anyway, since you have set the' >&2
  511. echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
  512. echo >&2
  513. else
  514. cat >&2 <<'END'
  515. Aborting the configuration process, to ensure you take notice of the issue.
  516. You can download and install GNU coreutils to get an 'rm' implementation
  517. that behaves properly: <http://www.gnu.org/software/coreutils/>.
  518. If you want to complete the configuration process using your problematic
  519. 'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
  520. to "yes", and re-run configure.
  521. END
  522. AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
  523. fi
  524. fi])
  525. dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion. Do not
  526. dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
  527. dnl mangled by Autoconf and run in a shell conditional statement.
  528. m4_define([_AC_COMPILER_EXEEXT],
  529. m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
  530. # When config.status generates a header, we must update the stamp-h file.
  531. # This file resides in the same directory as the config header
  532. # that is generated. The stamp files are numbered to have different names.
  533. # Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
  534. # loop where config.status creates the headers, so we can generate
  535. # our stamp files there.
  536. AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
  537. [# Compute $1's index in $config_headers.
  538. _am_arg=$1
  539. _am_stamp_count=1
  540. for _am_header in $config_headers :; do
  541. case $_am_header in
  542. $_am_arg | $_am_arg:* )
  543. break ;;
  544. * )
  545. _am_stamp_count=`expr $_am_stamp_count + 1` ;;
  546. esac
  547. done
  548. echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
  549. # Copyright (C) 2001-2013 Free Software Foundation, Inc.
  550. #
  551. # This file is free software; the Free Software Foundation
  552. # gives unlimited permission to copy and/or distribute it,
  553. # with or without modifications, as long as this notice is preserved.
  554. # AM_PROG_INSTALL_SH
  555. # ------------------
  556. # Define $install_sh.
  557. AC_DEFUN([AM_PROG_INSTALL_SH],
  558. [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
  559. if test x"${install_sh}" != xset; then
  560. case $am_aux_dir in
  561. *\ * | *\ *)
  562. install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
  563. *)
  564. install_sh="\${SHELL} $am_aux_dir/install-sh"
  565. esac
  566. fi
  567. AC_SUBST([install_sh])])
  568. # Copyright (C) 2003-2013 Free Software Foundation, Inc.
  569. #
  570. # This file is free software; the Free Software Foundation
  571. # gives unlimited permission to copy and/or distribute it,
  572. # with or without modifications, as long as this notice is preserved.
  573. # Check whether the underlying file-system supports filenames
  574. # with a leading dot. For instance MS-DOS doesn't.
  575. AC_DEFUN([AM_SET_LEADING_DOT],
  576. [rm -rf .tst 2>/dev/null
  577. mkdir .tst 2>/dev/null
  578. if test -d .tst; then
  579. am__leading_dot=.
  580. else
  581. am__leading_dot=_
  582. fi
  583. rmdir .tst 2>/dev/null
  584. AC_SUBST([am__leading_dot])])
  585. # Check to see how 'make' treats includes. -*- Autoconf -*-
  586. # Copyright (C) 2001-2013 Free Software Foundation, Inc.
  587. #
  588. # This file is free software; the Free Software Foundation
  589. # gives unlimited permission to copy and/or distribute it,
  590. # with or without modifications, as long as this notice is preserved.
  591. # AM_MAKE_INCLUDE()
  592. # -----------------
  593. # Check to see how make treats includes.
  594. AC_DEFUN([AM_MAKE_INCLUDE],
  595. [am_make=${MAKE-make}
  596. cat > confinc << 'END'
  597. am__doit:
  598. @echo this is the am__doit target
  599. .PHONY: am__doit
  600. END
  601. # If we don't find an include directive, just comment out the code.
  602. AC_MSG_CHECKING([for style of include used by $am_make])
  603. am__include="#"
  604. am__quote=
  605. _am_result=none
  606. # First try GNU make style include.
  607. echo "include confinc" > confmf
  608. # Ignore all kinds of additional output from 'make'.
  609. case `$am_make -s -f confmf 2> /dev/null` in #(
  610. *the\ am__doit\ target*)
  611. am__include=include
  612. am__quote=
  613. _am_result=GNU
  614. ;;
  615. esac
  616. # Now try BSD make style include.
  617. if test "$am__include" = "#"; then
  618. echo '.include "confinc"' > confmf
  619. case `$am_make -s -f confmf 2> /dev/null` in #(
  620. *the\ am__doit\ target*)
  621. am__include=.include
  622. am__quote="\""
  623. _am_result=BSD
  624. ;;
  625. esac
  626. fi
  627. AC_SUBST([am__include])
  628. AC_SUBST([am__quote])
  629. AC_MSG_RESULT([$_am_result])
  630. rm -f confinc confmf
  631. ])
  632. # Fake the existence of programs that GNU maintainers use. -*- Autoconf -*-
  633. # Copyright (C) 1997-2013 Free Software Foundation, Inc.
  634. #
  635. # This file is free software; the Free Software Foundation
  636. # gives unlimited permission to copy and/or distribute it,
  637. # with or without modifications, as long as this notice is preserved.
  638. # AM_MISSING_PROG(NAME, PROGRAM)
  639. # ------------------------------
  640. AC_DEFUN([AM_MISSING_PROG],
  641. [AC_REQUIRE([AM_MISSING_HAS_RUN])
  642. $1=${$1-"${am_missing_run}$2"}
  643. AC_SUBST($1)])
  644. # AM_MISSING_HAS_RUN
  645. # ------------------
  646. # Define MISSING if not defined so far and test if it is modern enough.
  647. # If it is, set am_missing_run to use it, otherwise, to nothing.
  648. AC_DEFUN([AM_MISSING_HAS_RUN],
  649. [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
  650. AC_REQUIRE_AUX_FILE([missing])dnl
  651. if test x"${MISSING+set}" != xset; then
  652. case $am_aux_dir in
  653. *\ * | *\ *)
  654. MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
  655. *)
  656. MISSING="\${SHELL} $am_aux_dir/missing" ;;
  657. esac
  658. fi
  659. # Use eval to expand $SHELL
  660. if eval "$MISSING --is-lightweight"; then
  661. am_missing_run="$MISSING "
  662. else
  663. am_missing_run=
  664. AC_MSG_WARN(['missing' script is too old or missing])
  665. fi
  666. ])
  667. # Helper functions for option handling. -*- Autoconf -*-
  668. # Copyright (C) 2001-2013 Free Software Foundation, Inc.
  669. #
  670. # This file is free software; the Free Software Foundation
  671. # gives unlimited permission to copy and/or distribute it,
  672. # with or without modifications, as long as this notice is preserved.
  673. # _AM_MANGLE_OPTION(NAME)
  674. # -----------------------
  675. AC_DEFUN([_AM_MANGLE_OPTION],
  676. [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
  677. # _AM_SET_OPTION(NAME)
  678. # --------------------
  679. # Set option NAME. Presently that only means defining a flag for this option.
  680. AC_DEFUN([_AM_SET_OPTION],
  681. [m4_define(_AM_MANGLE_OPTION([$1]), [1])])
  682. # _AM_SET_OPTIONS(OPTIONS)
  683. # ------------------------
  684. # OPTIONS is a space-separated list of Automake options.
  685. AC_DEFUN([_AM_SET_OPTIONS],
  686. [m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
  687. # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
  688. # -------------------------------------------
  689. # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
  690. AC_DEFUN([_AM_IF_OPTION],
  691. [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
  692. # Copyright (C) 1999-2013 Free Software Foundation, Inc.
  693. #
  694. # This file is free software; the Free Software Foundation
  695. # gives unlimited permission to copy and/or distribute it,
  696. # with or without modifications, as long as this notice is preserved.
  697. # _AM_PROG_CC_C_O
  698. # ---------------
  699. # Like AC_PROG_CC_C_O, but changed for automake. We rewrite AC_PROG_CC
  700. # to automatically call this.
  701. AC_DEFUN([_AM_PROG_CC_C_O],
  702. [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
  703. AC_REQUIRE_AUX_FILE([compile])dnl
  704. AC_LANG_PUSH([C])dnl
  705. AC_CACHE_CHECK(
  706. [whether $CC understands -c and -o together],
  707. [am_cv_prog_cc_c_o],
  708. [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
  709. # Make sure it works both with $CC and with simple cc.
  710. # Following AC_PROG_CC_C_O, we do the test twice because some
  711. # compilers refuse to overwrite an existing .o file with -o,
  712. # though they will create one.
  713. am_cv_prog_cc_c_o=yes
  714. for am_i in 1 2; do
  715. if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
  716. && test -f conftest2.$ac_objext; then
  717. : OK
  718. else
  719. am_cv_prog_cc_c_o=no
  720. break
  721. fi
  722. done
  723. rm -f core conftest*
  724. unset am_i])
  725. if test "$am_cv_prog_cc_c_o" != yes; then
  726. # Losing compiler, so override with the script.
  727. # FIXME: It is wrong to rewrite CC.
  728. # But if we don't then we get into trouble of one sort or another.
  729. # A longer-term fix would be to have automake use am__CC in this case,
  730. # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
  731. CC="$am_aux_dir/compile $CC"
  732. fi
  733. AC_LANG_POP([C])])
  734. # For backward compatibility.
  735. AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
  736. # Copyright (C) 2001-2013 Free Software Foundation, Inc.
  737. #
  738. # This file is free software; the Free Software Foundation
  739. # gives unlimited permission to copy and/or distribute it,
  740. # with or without modifications, as long as this notice is preserved.
  741. # AM_RUN_LOG(COMMAND)
  742. # -------------------
  743. # Run COMMAND, save the exit status in ac_status, and log it.
  744. # (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
  745. AC_DEFUN([AM_RUN_LOG],
  746. [{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
  747. ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
  748. ac_status=$?
  749. echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
  750. (exit $ac_status); }])
  751. # Check to make sure that the build environment is sane. -*- Autoconf -*-
  752. # Copyright (C) 1996-2013 Free Software Foundation, Inc.
  753. #
  754. # This file is free software; the Free Software Foundation
  755. # gives unlimited permission to copy and/or distribute it,
  756. # with or without modifications, as long as this notice is preserved.
  757. # AM_SANITY_CHECK
  758. # ---------------
  759. AC_DEFUN([AM_SANITY_CHECK],
  760. [AC_MSG_CHECKING([whether build environment is sane])
  761. # Reject unsafe characters in $srcdir or the absolute working directory
  762. # name. Accept space and tab only in the latter.
  763. am_lf='
  764. '
  765. case `pwd` in
  766. *[[\\\"\#\$\&\'\`$am_lf]]*)
  767. AC_MSG_ERROR([unsafe absolute working directory name]);;
  768. esac
  769. case $srcdir in
  770. *[[\\\"\#\$\&\'\`$am_lf\ \ ]]*)
  771. AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
  772. esac
  773. # Do 'set' in a subshell so we don't clobber the current shell's
  774. # arguments. Must try -L first in case configure is actually a
  775. # symlink; some systems play weird games with the mod time of symlinks
  776. # (eg FreeBSD returns the mod time of the symlink's containing
  777. # directory).
  778. if (
  779. am_has_slept=no
  780. for am_try in 1 2; do
  781. echo "timestamp, slept: $am_has_slept" > conftest.file
  782. set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
  783. if test "$[*]" = "X"; then
  784. # -L didn't work.
  785. set X `ls -t "$srcdir/configure" conftest.file`
  786. fi
  787. if test "$[*]" != "X $srcdir/configure conftest.file" \
  788. && test "$[*]" != "X conftest.file $srcdir/configure"; then
  789. # If neither matched, then we have a broken ls. This can happen
  790. # if, for instance, CONFIG_SHELL is bash and it inherits a
  791. # broken ls alias from the environment. This has actually
  792. # happened. Such a system could not be considered "sane".
  793. AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken
  794. alias in your environment])
  795. fi
  796. if test "$[2]" = conftest.file || test $am_try -eq 2; then
  797. break
  798. fi
  799. # Just in case.
  800. sleep 1
  801. am_has_slept=yes
  802. done
  803. test "$[2]" = conftest.file
  804. )
  805. then
  806. # Ok.
  807. :
  808. else
  809. AC_MSG_ERROR([newly created file is older than distributed files!
  810. Check your system clock])
  811. fi
  812. AC_MSG_RESULT([yes])
  813. # If we didn't sleep, we still need to ensure time stamps of config.status and
  814. # generated files are strictly newer.
  815. am_sleep_pid=
  816. if grep 'slept: no' conftest.file >/dev/null 2>&1; then
  817. ( sleep 1 ) &
  818. am_sleep_pid=$!
  819. fi
  820. AC_CONFIG_COMMANDS_PRE(
  821. [AC_MSG_CHECKING([that generated files are newer than configure])
  822. if test -n "$am_sleep_pid"; then
  823. # Hide warnings about reused PIDs.
  824. wait $am_sleep_pid 2>/dev/null
  825. fi
  826. AC_MSG_RESULT([done])])
  827. rm -f conftest.file
  828. ])
  829. # Copyright (C) 2009-2013 Free Software Foundation, Inc.
  830. #
  831. # This file is free software; the Free Software Foundation
  832. # gives unlimited permission to copy and/or distribute it,
  833. # with or without modifications, as long as this notice is preserved.
  834. # AM_SILENT_RULES([DEFAULT])
  835. # --------------------------
  836. # Enable less verbose build rules; with the default set to DEFAULT
  837. # ("yes" being less verbose, "no" or empty being verbose).
  838. AC_DEFUN([AM_SILENT_RULES],
  839. [AC_ARG_ENABLE([silent-rules], [dnl
  840. AS_HELP_STRING(
  841. [--enable-silent-rules],
  842. [less verbose build output (undo: "make V=1")])
  843. AS_HELP_STRING(
  844. [--disable-silent-rules],
  845. [verbose build output (undo: "make V=0")])dnl
  846. ])
  847. case $enable_silent_rules in @%:@ (((
  848. yes) AM_DEFAULT_VERBOSITY=0;;
  849. no) AM_DEFAULT_VERBOSITY=1;;
  850. *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
  851. esac
  852. dnl
  853. dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
  854. dnl do not support nested variable expansions.
  855. dnl See automake bug#9928 and bug#10237.
  856. am_make=${MAKE-make}
  857. AC_CACHE_CHECK([whether $am_make supports nested variables],
  858. [am_cv_make_support_nested_variables],
  859. [if AS_ECHO([['TRUE=$(BAR$(V))
  860. BAR0=false
  861. BAR1=true
  862. V=1
  863. am__doit:
  864. @$(TRUE)
  865. .PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
  866. am_cv_make_support_nested_variables=yes
  867. else
  868. am_cv_make_support_nested_variables=no
  869. fi])
  870. if test $am_cv_make_support_nested_variables = yes; then
  871. dnl Using '$V' instead of '$(V)' breaks IRIX make.
  872. AM_V='$(V)'
  873. AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
  874. else
  875. AM_V=$AM_DEFAULT_VERBOSITY
  876. AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
  877. fi
  878. AC_SUBST([AM_V])dnl
  879. AM_SUBST_NOTMAKE([AM_V])dnl
  880. AC_SUBST([AM_DEFAULT_V])dnl
  881. AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
  882. AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
  883. AM_BACKSLASH='\'
  884. AC_SUBST([AM_BACKSLASH])dnl
  885. _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
  886. ])
  887. # Copyright (C) 2001-2013 Free Software Foundation, Inc.
  888. #
  889. # This file is free software; the Free Software Foundation
  890. # gives unlimited permission to copy and/or distribute it,
  891. # with or without modifications, as long as this notice is preserved.
  892. # AM_PROG_INSTALL_STRIP
  893. # ---------------------
  894. # One issue with vendor 'install' (even GNU) is that you can't
  895. # specify the program used to strip binaries. This is especially
  896. # annoying in cross-compiling environments, where the build's strip
  897. # is unlikely to handle the host's binaries.
  898. # Fortunately install-sh will honor a STRIPPROG variable, so we
  899. # always use install-sh in "make install-strip", and initialize
  900. # STRIPPROG with the value of the STRIP variable (set by the user).
  901. AC_DEFUN([AM_PROG_INSTALL_STRIP],
  902. [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
  903. # Installed binaries are usually stripped using 'strip' when the user
  904. # run "make install-strip". However 'strip' might not be the right
  905. # tool to use in cross-compilation environments, therefore Automake
  906. # will honor the 'STRIP' environment variable to overrule this program.
  907. dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
  908. if test "$cross_compiling" != no; then
  909. AC_CHECK_TOOL([STRIP], [strip], :)
  910. fi
  911. INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
  912. AC_SUBST([INSTALL_STRIP_PROGRAM])])
  913. # Copyright (C) 2006-2013 Free Software Foundation, Inc.
  914. #
  915. # This file is free software; the Free Software Foundation
  916. # gives unlimited permission to copy and/or distribute it,
  917. # with or without modifications, as long as this notice is preserved.
  918. # _AM_SUBST_NOTMAKE(VARIABLE)
  919. # ---------------------------
  920. # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
  921. # This macro is traced by Automake.
  922. AC_DEFUN([_AM_SUBST_NOTMAKE])
  923. # AM_SUBST_NOTMAKE(VARIABLE)
  924. # --------------------------
  925. # Public sister of _AM_SUBST_NOTMAKE.
  926. AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
  927. # Check how to create a tarball. -*- Autoconf -*-
  928. # Copyright (C) 2004-2013 Free Software Foundation, Inc.
  929. #
  930. # This file is free software; the Free Software Foundation
  931. # gives unlimited permission to copy and/or distribute it,
  932. # with or without modifications, as long as this notice is preserved.
  933. # _AM_PROG_TAR(FORMAT)
  934. # --------------------
  935. # Check how to create a tarball in format FORMAT.
  936. # FORMAT should be one of 'v7', 'ustar', or 'pax'.
  937. #
  938. # Substitute a variable $(am__tar) that is a command
  939. # writing to stdout a FORMAT-tarball containing the directory
  940. # $tardir.
  941. # tardir=directory && $(am__tar) > result.tar
  942. #
  943. # Substitute a variable $(am__untar) that extract such
  944. # a tarball read from stdin.
  945. # $(am__untar) < result.tar
  946. #
  947. AC_DEFUN([_AM_PROG_TAR],
  948. [# Always define AMTAR for backward compatibility. Yes, it's still used
  949. # in the wild :-( We should find a proper way to deprecate it ...
  950. AC_SUBST([AMTAR], ['$${TAR-tar}'])
  951. # We'll loop over all known methods to create a tar archive until one works.
  952. _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
  953. m4_if([$1], [v7],
  954. [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
  955. [m4_case([$1],
  956. [ustar],
  957. [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
  958. # There is notably a 21 bits limit for the UID and the GID. In fact,
  959. # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
  960. # and bug#13588).
  961. am_max_uid=2097151 # 2^21 - 1
  962. am_max_gid=$am_max_uid
  963. # The $UID and $GID variables are not portable, so we need to resort
  964. # to the POSIX-mandated id(1) utility. Errors in the 'id' calls
  965. # below are definitely unexpected, so allow the users to see them
  966. # (that is, avoid stderr redirection).
  967. am_uid=`id -u || echo unknown`
  968. am_gid=`id -g || echo unknown`
  969. AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
  970. if test $am_uid -le $am_max_uid; then
  971. AC_MSG_RESULT([yes])
  972. else
  973. AC_MSG_RESULT([no])
  974. _am_tools=none
  975. fi
  976. AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
  977. if test $am_gid -le $am_max_gid; then
  978. AC_MSG_RESULT([yes])
  979. else
  980. AC_MSG_RESULT([no])
  981. _am_tools=none
  982. fi],
  983. [pax],
  984. [],
  985. [m4_fatal([Unknown tar format])])
  986. AC_MSG_CHECKING([how to create a $1 tar archive])
  987. # Go ahead even if we have the value already cached. We do so because we
  988. # need to set the values for the 'am__tar' and 'am__untar' variables.
  989. _am_tools=${am_cv_prog_tar_$1-$_am_tools}
  990. for _am_tool in $_am_tools; do
  991. case $_am_tool in
  992. gnutar)
  993. for _am_tar in tar gnutar gtar; do
  994. AM_RUN_LOG([$_am_tar --version]) && break
  995. done
  996. am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
  997. am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
  998. am__untar="$_am_tar -xf -"
  999. ;;
  1000. plaintar)
  1001. # Must skip GNU tar: if it does not support --format= it doesn't create
  1002. # ustar tarball either.
  1003. (tar --version) >/dev/null 2>&1 && continue
  1004. am__tar='tar chf - "$$tardir"'
  1005. am__tar_='tar chf - "$tardir"'
  1006. am__untar='tar xf -'
  1007. ;;
  1008. pax)
  1009. am__tar='pax -L -x $1 -w "$$tardir"'
  1010. am__tar_='pax -L -x $1 -w "$tardir"'
  1011. am__untar='pax -r'
  1012. ;;
  1013. cpio)
  1014. am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
  1015. am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
  1016. am__untar='cpio -i -H $1 -d'
  1017. ;;
  1018. none)
  1019. am__tar=false
  1020. am__tar_=false
  1021. am__untar=false
  1022. ;;
  1023. esac
  1024. # If the value was cached, stop now. We just wanted to have am__tar
  1025. # and am__untar set.
  1026. test -n "${am_cv_prog_tar_$1}" && break
  1027. # tar/untar a dummy directory, and stop if the command works.
  1028. rm -rf conftest.dir
  1029. mkdir conftest.dir
  1030. echo GrepMe > conftest.dir/file
  1031. AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
  1032. rm -rf conftest.dir
  1033. if test -s conftest.tar; then
  1034. AM_RUN_LOG([$am__untar <conftest.tar])
  1035. AM_RUN_LOG([cat conftest.dir/file])
  1036. grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
  1037. fi
  1038. done
  1039. rm -rf conftest.dir
  1040. AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
  1041. AC_MSG_RESULT([$am_cv_prog_tar_$1])])
  1042. AC_SUBST([am__tar])
  1043. AC_SUBST([am__untar])
  1044. ]) # _AM_PROG_TAR