aclocal.m4 44 KB

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  1. # generated automatically by aclocal 1.16.3 -*- Autoconf -*-
  2. # Copyright (C) 1996-2020 Free Software Foundation, Inc.
  3. # This file is free software; the Free Software Foundation
  4. # gives unlimited permission to copy and/or distribute it,
  5. # with or without modifications, as long as this notice is preserved.
  6. # This program is distributed in the hope that it will be useful,
  7. # but WITHOUT ANY WARRANTY, to the extent permitted by law; without
  8. # even the implied warranty of MERCHANTABILITY or FITNESS FOR A
  9. # PARTICULAR PURPOSE.
  10. m4_ifndef([AC_CONFIG_MACRO_DIRS], [m4_defun([_AM_CONFIG_MACRO_DIRS], [])m4_defun([AC_CONFIG_MACRO_DIRS], [_AM_CONFIG_MACRO_DIRS($@)])])
  11. m4_ifndef([AC_AUTOCONF_VERSION],
  12. [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
  13. m4_if(m4_defn([AC_AUTOCONF_VERSION]), [2.69],,
  14. [m4_warning([this file was generated for autoconf 2.69.
  15. You have another version of autoconf. It may work, but is not guaranteed to.
  16. If you have problems, you may need to regenerate the build system entirely.
  17. To do so, use the procedure documented by the package, typically 'autoreconf'.])])
  18. # intlmacosx.m4 serial 8 (gettext-0.20.2)
  19. dnl Copyright (C) 2004-2014, 2016, 2019-2020 Free Software Foundation, Inc.
  20. dnl This file is free software; the Free Software Foundation
  21. dnl gives unlimited permission to copy and/or distribute it,
  22. dnl with or without modifications, as long as this notice is preserved.
  23. dnl
  24. dnl This file can be used in projects which are not available under
  25. dnl the GNU General Public License or the GNU Lesser General Public
  26. dnl License but which still want to provide support for the GNU gettext
  27. dnl functionality.
  28. dnl Please note that the actual code of the GNU gettext library is covered
  29. dnl by the GNU Lesser General Public License, and the rest of the GNU
  30. dnl gettext package is covered by the GNU General Public License.
  31. dnl They are *not* in the public domain.
  32. dnl Checks for special options needed on Mac OS X.
  33. dnl Defines INTL_MACOSX_LIBS.
  34. AC_DEFUN([gt_INTL_MACOSX],
  35. [
  36. dnl Check for API introduced in Mac OS X 10.4.
  37. AC_CACHE_CHECK([for CFPreferencesCopyAppValue],
  38. [gt_cv_func_CFPreferencesCopyAppValue],
  39. [gt_save_LIBS="$LIBS"
  40. LIBS="$LIBS -Wl,-framework -Wl,CoreFoundation"
  41. AC_LINK_IFELSE(
  42. [AC_LANG_PROGRAM(
  43. [[#include <CoreFoundation/CFPreferences.h>]],
  44. [[CFPreferencesCopyAppValue(NULL, NULL)]])],
  45. [gt_cv_func_CFPreferencesCopyAppValue=yes],
  46. [gt_cv_func_CFPreferencesCopyAppValue=no])
  47. LIBS="$gt_save_LIBS"])
  48. if test $gt_cv_func_CFPreferencesCopyAppValue = yes; then
  49. AC_DEFINE([HAVE_CFPREFERENCESCOPYAPPVALUE], [1],
  50. [Define to 1 if you have the Mac OS X function CFPreferencesCopyAppValue in the CoreFoundation framework.])
  51. fi
  52. dnl Don't check for the API introduced in Mac OS X 10.5, CFLocaleCopyCurrent,
  53. dnl because in macOS 10.13.4 it has the following behaviour:
  54. dnl When two or more languages are specified in the
  55. dnl "System Preferences > Language & Region > Preferred Languages" panel,
  56. dnl it returns en_CC where CC is the territory (even when English is not among
  57. dnl the preferred languages!). What we want instead is what
  58. dnl CFLocaleCopyCurrent returned in earlier macOS releases and what
  59. dnl CFPreferencesCopyAppValue still returns, namely ll_CC where ll is the
  60. dnl first among the preferred languages and CC is the territory.
  61. AC_CACHE_CHECK([for CFLocaleCopyPreferredLanguages], [gt_cv_func_CFLocaleCopyPreferredLanguages],
  62. [gt_save_LIBS="$LIBS"
  63. LIBS="$LIBS -Wl,-framework -Wl,CoreFoundation"
  64. AC_LINK_IFELSE(
  65. [AC_LANG_PROGRAM(
  66. [[#include <CoreFoundation/CFLocale.h>]],
  67. [[CFLocaleCopyPreferredLanguages();]])],
  68. [gt_cv_func_CFLocaleCopyPreferredLanguages=yes],
  69. [gt_cv_func_CFLocaleCopyPreferredLanguages=no])
  70. LIBS="$gt_save_LIBS"])
  71. if test $gt_cv_func_CFLocaleCopyPreferredLanguages = yes; then
  72. AC_DEFINE([HAVE_CFLOCALECOPYPREFERREDLANGUAGES], [1],
  73. [Define to 1 if you have the Mac OS X function CFLocaleCopyPreferredLanguages in the CoreFoundation framework.])
  74. fi
  75. INTL_MACOSX_LIBS=
  76. if test $gt_cv_func_CFPreferencesCopyAppValue = yes \
  77. || test $gt_cv_func_CFLocaleCopyPreferredLanguages = yes; then
  78. INTL_MACOSX_LIBS="-Wl,-framework -Wl,CoreFoundation"
  79. fi
  80. AC_SUBST([INTL_MACOSX_LIBS])
  81. ])
  82. # Copyright (C) 2002-2020 Free Software Foundation, Inc.
  83. #
  84. # This file is free software; the Free Software Foundation
  85. # gives unlimited permission to copy and/or distribute it,
  86. # with or without modifications, as long as this notice is preserved.
  87. # AM_AUTOMAKE_VERSION(VERSION)
  88. # ----------------------------
  89. # Automake X.Y traces this macro to ensure aclocal.m4 has been
  90. # generated from the m4 files accompanying Automake X.Y.
  91. # (This private macro should not be called outside this file.)
  92. AC_DEFUN([AM_AUTOMAKE_VERSION],
  93. [am__api_version='1.16'
  94. dnl Some users find AM_AUTOMAKE_VERSION and mistake it for a way to
  95. dnl require some minimum version. Point them to the right macro.
  96. m4_if([$1], [1.16.3], [],
  97. [AC_FATAL([Do not call $0, use AM_INIT_AUTOMAKE([$1]).])])dnl
  98. ])
  99. # _AM_AUTOCONF_VERSION(VERSION)
  100. # -----------------------------
  101. # aclocal traces this macro to find the Autoconf version.
  102. # This is a private macro too. Using m4_define simplifies
  103. # the logic in aclocal, which can simply ignore this definition.
  104. m4_define([_AM_AUTOCONF_VERSION], [])
  105. # AM_SET_CURRENT_AUTOMAKE_VERSION
  106. # -------------------------------
  107. # Call AM_AUTOMAKE_VERSION and AM_AUTOMAKE_VERSION so they can be traced.
  108. # This function is AC_REQUIREd by AM_INIT_AUTOMAKE.
  109. AC_DEFUN([AM_SET_CURRENT_AUTOMAKE_VERSION],
  110. [AM_AUTOMAKE_VERSION([1.16.3])dnl
  111. m4_ifndef([AC_AUTOCONF_VERSION],
  112. [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
  113. _AM_AUTOCONF_VERSION(m4_defn([AC_AUTOCONF_VERSION]))])
  114. # AM_AUX_DIR_EXPAND -*- Autoconf -*-
  115. # Copyright (C) 2001-2020 Free Software Foundation, Inc.
  116. #
  117. # This file is free software; the Free Software Foundation
  118. # gives unlimited permission to copy and/or distribute it,
  119. # with or without modifications, as long as this notice is preserved.
  120. # For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets
  121. # $ac_aux_dir to '$srcdir/foo'. In other projects, it is set to
  122. # '$srcdir', '$srcdir/..', or '$srcdir/../..'.
  123. #
  124. # Of course, Automake must honor this variable whenever it calls a
  125. # tool from the auxiliary directory. The problem is that $srcdir (and
  126. # therefore $ac_aux_dir as well) can be either absolute or relative,
  127. # depending on how configure is run. This is pretty annoying, since
  128. # it makes $ac_aux_dir quite unusable in subdirectories: in the top
  129. # source directory, any form will work fine, but in subdirectories a
  130. # relative path needs to be adjusted first.
  131. #
  132. # $ac_aux_dir/missing
  133. # fails when called from a subdirectory if $ac_aux_dir is relative
  134. # $top_srcdir/$ac_aux_dir/missing
  135. # fails if $ac_aux_dir is absolute,
  136. # fails when called from a subdirectory in a VPATH build with
  137. # a relative $ac_aux_dir
  138. #
  139. # The reason of the latter failure is that $top_srcdir and $ac_aux_dir
  140. # are both prefixed by $srcdir. In an in-source build this is usually
  141. # harmless because $srcdir is '.', but things will broke when you
  142. # start a VPATH build or use an absolute $srcdir.
  143. #
  144. # So we could use something similar to $top_srcdir/$ac_aux_dir/missing,
  145. # iff we strip the leading $srcdir from $ac_aux_dir. That would be:
  146. # am_aux_dir='\$(top_srcdir)/'`expr "$ac_aux_dir" : "$srcdir//*\(.*\)"`
  147. # and then we would define $MISSING as
  148. # MISSING="\${SHELL} $am_aux_dir/missing"
  149. # This will work as long as MISSING is not called from configure, because
  150. # unfortunately $(top_srcdir) has no meaning in configure.
  151. # However there are other variables, like CC, which are often used in
  152. # configure, and could therefore not use this "fixed" $ac_aux_dir.
  153. #
  154. # Another solution, used here, is to always expand $ac_aux_dir to an
  155. # absolute PATH. The drawback is that using absolute paths prevent a
  156. # configured tree to be moved without reconfiguration.
  157. AC_DEFUN([AM_AUX_DIR_EXPAND],
  158. [AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
  159. # Expand $ac_aux_dir to an absolute path.
  160. am_aux_dir=`cd "$ac_aux_dir" && pwd`
  161. ])
  162. # AM_CONDITIONAL -*- Autoconf -*-
  163. # Copyright (C) 1997-2020 Free Software Foundation, Inc.
  164. #
  165. # This file is free software; the Free Software Foundation
  166. # gives unlimited permission to copy and/or distribute it,
  167. # with or without modifications, as long as this notice is preserved.
  168. # AM_CONDITIONAL(NAME, SHELL-CONDITION)
  169. # -------------------------------------
  170. # Define a conditional.
  171. AC_DEFUN([AM_CONDITIONAL],
  172. [AC_PREREQ([2.52])dnl
  173. m4_if([$1], [TRUE], [AC_FATAL([$0: invalid condition: $1])],
  174. [$1], [FALSE], [AC_FATAL([$0: invalid condition: $1])])dnl
  175. AC_SUBST([$1_TRUE])dnl
  176. AC_SUBST([$1_FALSE])dnl
  177. _AM_SUBST_NOTMAKE([$1_TRUE])dnl
  178. _AM_SUBST_NOTMAKE([$1_FALSE])dnl
  179. m4_define([_AM_COND_VALUE_$1], [$2])dnl
  180. if $2; then
  181. $1_TRUE=
  182. $1_FALSE='#'
  183. else
  184. $1_TRUE='#'
  185. $1_FALSE=
  186. fi
  187. AC_CONFIG_COMMANDS_PRE(
  188. [if test -z "${$1_TRUE}" && test -z "${$1_FALSE}"; then
  189. AC_MSG_ERROR([[conditional "$1" was never defined.
  190. Usually this means the macro was only invoked conditionally.]])
  191. fi])])
  192. # Copyright (C) 1999-2020 Free Software Foundation, Inc.
  193. #
  194. # This file is free software; the Free Software Foundation
  195. # gives unlimited permission to copy and/or distribute it,
  196. # with or without modifications, as long as this notice is preserved.
  197. # There are a few dirty hacks below to avoid letting 'AC_PROG_CC' be
  198. # written in clear, in which case automake, when reading aclocal.m4,
  199. # will think it sees a *use*, and therefore will trigger all it's
  200. # C support machinery. Also note that it means that autoscan, seeing
  201. # CC etc. in the Makefile, will ask for an AC_PROG_CC use...
  202. # _AM_DEPENDENCIES(NAME)
  203. # ----------------------
  204. # See how the compiler implements dependency checking.
  205. # NAME is "CC", "CXX", "OBJC", "OBJCXX", "UPC", or "GJC".
  206. # We try a few techniques and use that to set a single cache variable.
  207. #
  208. # We don't AC_REQUIRE the corresponding AC_PROG_CC since the latter was
  209. # modified to invoke _AM_DEPENDENCIES(CC); we would have a circular
  210. # dependency, and given that the user is not expected to run this macro,
  211. # just rely on AC_PROG_CC.
  212. AC_DEFUN([_AM_DEPENDENCIES],
  213. [AC_REQUIRE([AM_SET_DEPDIR])dnl
  214. AC_REQUIRE([AM_OUTPUT_DEPENDENCY_COMMANDS])dnl
  215. AC_REQUIRE([AM_MAKE_INCLUDE])dnl
  216. AC_REQUIRE([AM_DEP_TRACK])dnl
  217. m4_if([$1], [CC], [depcc="$CC" am_compiler_list=],
  218. [$1], [CXX], [depcc="$CXX" am_compiler_list=],
  219. [$1], [OBJC], [depcc="$OBJC" am_compiler_list='gcc3 gcc'],
  220. [$1], [OBJCXX], [depcc="$OBJCXX" am_compiler_list='gcc3 gcc'],
  221. [$1], [UPC], [depcc="$UPC" am_compiler_list=],
  222. [$1], [GCJ], [depcc="$GCJ" am_compiler_list='gcc3 gcc'],
  223. [depcc="$$1" am_compiler_list=])
  224. AC_CACHE_CHECK([dependency style of $depcc],
  225. [am_cv_$1_dependencies_compiler_type],
  226. [if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
  227. # We make a subdir and do the tests there. Otherwise we can end up
  228. # making bogus files that we don't know about and never remove. For
  229. # instance it was reported that on HP-UX the gcc test will end up
  230. # making a dummy file named 'D' -- because '-MD' means "put the output
  231. # in D".
  232. rm -rf conftest.dir
  233. mkdir conftest.dir
  234. # Copy depcomp to subdir because otherwise we won't find it if we're
  235. # using a relative directory.
  236. cp "$am_depcomp" conftest.dir
  237. cd conftest.dir
  238. # We will build objects and dependencies in a subdirectory because
  239. # it helps to detect inapplicable dependency modes. For instance
  240. # both Tru64's cc and ICC support -MD to output dependencies as a
  241. # side effect of compilation, but ICC will put the dependencies in
  242. # the current directory while Tru64 will put them in the object
  243. # directory.
  244. mkdir sub
  245. am_cv_$1_dependencies_compiler_type=none
  246. if test "$am_compiler_list" = ""; then
  247. am_compiler_list=`sed -n ['s/^#*\([a-zA-Z0-9]*\))$/\1/p'] < ./depcomp`
  248. fi
  249. am__universal=false
  250. m4_case([$1], [CC],
  251. [case " $depcc " in #(
  252. *\ -arch\ *\ -arch\ *) am__universal=true ;;
  253. esac],
  254. [CXX],
  255. [case " $depcc " in #(
  256. *\ -arch\ *\ -arch\ *) am__universal=true ;;
  257. esac])
  258. for depmode in $am_compiler_list; do
  259. # Setup a source with many dependencies, because some compilers
  260. # like to wrap large dependency lists on column 80 (with \), and
  261. # we should not choose a depcomp mode which is confused by this.
  262. #
  263. # We need to recreate these files for each test, as the compiler may
  264. # overwrite some of them when testing with obscure command lines.
  265. # This happens at least with the AIX C compiler.
  266. : > sub/conftest.c
  267. for i in 1 2 3 4 5 6; do
  268. echo '#include "conftst'$i'.h"' >> sub/conftest.c
  269. # Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
  270. # Solaris 10 /bin/sh.
  271. echo '/* dummy */' > sub/conftst$i.h
  272. done
  273. echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
  274. # We check with '-c' and '-o' for the sake of the "dashmstdout"
  275. # mode. It turns out that the SunPro C++ compiler does not properly
  276. # handle '-M -o', and we need to detect this. Also, some Intel
  277. # versions had trouble with output in subdirs.
  278. am__obj=sub/conftest.${OBJEXT-o}
  279. am__minus_obj="-o $am__obj"
  280. case $depmode in
  281. gcc)
  282. # This depmode causes a compiler race in universal mode.
  283. test "$am__universal" = false || continue
  284. ;;
  285. nosideeffect)
  286. # After this tag, mechanisms are not by side-effect, so they'll
  287. # only be used when explicitly requested.
  288. if test "x$enable_dependency_tracking" = xyes; then
  289. continue
  290. else
  291. break
  292. fi
  293. ;;
  294. msvc7 | msvc7msys | msvisualcpp | msvcmsys)
  295. # This compiler won't grok '-c -o', but also, the minuso test has
  296. # not run yet. These depmodes are late enough in the game, and
  297. # so weak that their functioning should not be impacted.
  298. am__obj=conftest.${OBJEXT-o}
  299. am__minus_obj=
  300. ;;
  301. none) break ;;
  302. esac
  303. if depmode=$depmode \
  304. source=sub/conftest.c object=$am__obj \
  305. depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
  306. $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
  307. >/dev/null 2>conftest.err &&
  308. grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
  309. grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
  310. grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
  311. ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
  312. # icc doesn't choke on unknown options, it will just issue warnings
  313. # or remarks (even with -Werror). So we grep stderr for any message
  314. # that says an option was ignored or not supported.
  315. # When given -MP, icc 7.0 and 7.1 complain thusly:
  316. # icc: Command line warning: ignoring option '-M'; no argument required
  317. # The diagnosis changed in icc 8.0:
  318. # icc: Command line remark: option '-MP' not supported
  319. if (grep 'ignoring option' conftest.err ||
  320. grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
  321. am_cv_$1_dependencies_compiler_type=$depmode
  322. break
  323. fi
  324. fi
  325. done
  326. cd ..
  327. rm -rf conftest.dir
  328. else
  329. am_cv_$1_dependencies_compiler_type=none
  330. fi
  331. ])
  332. AC_SUBST([$1DEPMODE], [depmode=$am_cv_$1_dependencies_compiler_type])
  333. AM_CONDITIONAL([am__fastdep$1], [
  334. test "x$enable_dependency_tracking" != xno \
  335. && test "$am_cv_$1_dependencies_compiler_type" = gcc3])
  336. ])
  337. # AM_SET_DEPDIR
  338. # -------------
  339. # Choose a directory name for dependency files.
  340. # This macro is AC_REQUIREd in _AM_DEPENDENCIES.
  341. AC_DEFUN([AM_SET_DEPDIR],
  342. [AC_REQUIRE([AM_SET_LEADING_DOT])dnl
  343. AC_SUBST([DEPDIR], ["${am__leading_dot}deps"])dnl
  344. ])
  345. # AM_DEP_TRACK
  346. # ------------
  347. AC_DEFUN([AM_DEP_TRACK],
  348. [AC_ARG_ENABLE([dependency-tracking], [dnl
  349. AS_HELP_STRING(
  350. [--enable-dependency-tracking],
  351. [do not reject slow dependency extractors])
  352. AS_HELP_STRING(
  353. [--disable-dependency-tracking],
  354. [speeds up one-time build])])
  355. if test "x$enable_dependency_tracking" != xno; then
  356. am_depcomp="$ac_aux_dir/depcomp"
  357. AMDEPBACKSLASH='\'
  358. am__nodep='_no'
  359. fi
  360. AM_CONDITIONAL([AMDEP], [test "x$enable_dependency_tracking" != xno])
  361. AC_SUBST([AMDEPBACKSLASH])dnl
  362. _AM_SUBST_NOTMAKE([AMDEPBACKSLASH])dnl
  363. AC_SUBST([am__nodep])dnl
  364. _AM_SUBST_NOTMAKE([am__nodep])dnl
  365. ])
  366. # Generate code to set up dependency tracking. -*- Autoconf -*-
  367. # Copyright (C) 1999-2020 Free Software Foundation, Inc.
  368. #
  369. # This file is free software; the Free Software Foundation
  370. # gives unlimited permission to copy and/or distribute it,
  371. # with or without modifications, as long as this notice is preserved.
  372. # _AM_OUTPUT_DEPENDENCY_COMMANDS
  373. # ------------------------------
  374. AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
  375. [{
  376. # Older Autoconf quotes --file arguments for eval, but not when files
  377. # are listed without --file. Let's play safe and only enable the eval
  378. # if we detect the quoting.
  379. # TODO: see whether this extra hack can be removed once we start
  380. # requiring Autoconf 2.70 or later.
  381. AS_CASE([$CONFIG_FILES],
  382. [*\'*], [eval set x "$CONFIG_FILES"],
  383. [*], [set x $CONFIG_FILES])
  384. shift
  385. # Used to flag and report bootstrapping failures.
  386. am_rc=0
  387. for am_mf
  388. do
  389. # Strip MF so we end up with the name of the file.
  390. am_mf=`AS_ECHO(["$am_mf"]) | sed -e 's/:.*$//'`
  391. # Check whether this is an Automake generated Makefile which includes
  392. # dependency-tracking related rules and includes.
  393. # Grep'ing the whole file directly is not great: AIX grep has a line
  394. # limit of 2048, but all sed's we know have understand at least 4000.
  395. sed -n 's,^am--depfiles:.*,X,p' "$am_mf" | grep X >/dev/null 2>&1 \
  396. || continue
  397. am_dirpart=`AS_DIRNAME(["$am_mf"])`
  398. am_filepart=`AS_BASENAME(["$am_mf"])`
  399. AM_RUN_LOG([cd "$am_dirpart" \
  400. && sed -e '/# am--include-marker/d' "$am_filepart" \
  401. | $MAKE -f - am--depfiles]) || am_rc=$?
  402. done
  403. if test $am_rc -ne 0; then
  404. AC_MSG_FAILURE([Something went wrong bootstrapping makefile fragments
  405. for automatic dependency tracking. If GNU make was not used, consider
  406. re-running the configure script with MAKE="gmake" (or whatever is
  407. necessary). You can also try re-running configure with the
  408. '--disable-dependency-tracking' option to at least be able to build
  409. the package (albeit without support for automatic dependency tracking).])
  410. fi
  411. AS_UNSET([am_dirpart])
  412. AS_UNSET([am_filepart])
  413. AS_UNSET([am_mf])
  414. AS_UNSET([am_rc])
  415. rm -f conftest-deps.mk
  416. }
  417. ])# _AM_OUTPUT_DEPENDENCY_COMMANDS
  418. # AM_OUTPUT_DEPENDENCY_COMMANDS
  419. # -----------------------------
  420. # This macro should only be invoked once -- use via AC_REQUIRE.
  421. #
  422. # This code is only required when automatic dependency tracking is enabled.
  423. # This creates each '.Po' and '.Plo' makefile fragment that we'll need in
  424. # order to bootstrap the dependency handling code.
  425. AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
  426. [AC_CONFIG_COMMANDS([depfiles],
  427. [test x"$AMDEP_TRUE" != x"" || _AM_OUTPUT_DEPENDENCY_COMMANDS],
  428. [AMDEP_TRUE="$AMDEP_TRUE" MAKE="${MAKE-make}"])])
  429. # Do all the work for Automake. -*- Autoconf -*-
  430. # Copyright (C) 1996-2020 Free Software Foundation, Inc.
  431. #
  432. # This file is free software; the Free Software Foundation
  433. # gives unlimited permission to copy and/or distribute it,
  434. # with or without modifications, as long as this notice is preserved.
  435. # This macro actually does too much. Some checks are only needed if
  436. # your package does certain things. But this isn't really a big deal.
  437. dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
  438. m4_define([AC_PROG_CC],
  439. m4_defn([AC_PROG_CC])
  440. [_AM_PROG_CC_C_O
  441. ])
  442. # AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
  443. # AM_INIT_AUTOMAKE([OPTIONS])
  444. # -----------------------------------------------
  445. # The call with PACKAGE and VERSION arguments is the old style
  446. # call (pre autoconf-2.50), which is being phased out. PACKAGE
  447. # and VERSION should now be passed to AC_INIT and removed from
  448. # the call to AM_INIT_AUTOMAKE.
  449. # We support both call styles for the transition. After
  450. # the next Automake release, Autoconf can make the AC_INIT
  451. # arguments mandatory, and then we can depend on a new Autoconf
  452. # release and drop the old call support.
  453. AC_DEFUN([AM_INIT_AUTOMAKE],
  454. [AC_PREREQ([2.65])dnl
  455. dnl Autoconf wants to disallow AM_ names. We explicitly allow
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  457. m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
  458. AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
  459. AC_REQUIRE([AC_PROG_INSTALL])dnl
  460. if test "`cd $srcdir && pwd`" != "`pwd`"; then
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  462. # is not polluted with repeated "-I."
  463. AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
  464. # test to see if srcdir already configured
  465. if test -f $srcdir/config.status; then
  466. AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
  467. fi
  468. fi
  469. # test whether we have cygpath
  470. if test -z "$CYGPATH_W"; then
  471. if (cygpath --version) >/dev/null 2>/dev/null; then
  472. CYGPATH_W='cygpath -w'
  473. else
  474. CYGPATH_W=echo
  475. fi
  476. fi
  477. AC_SUBST([CYGPATH_W])
  478. # Define the identity of the package.
  479. dnl Distinguish between old-style and new-style calls.
  480. m4_ifval([$2],
  481. [AC_DIAGNOSE([obsolete],
  482. [$0: two- and three-arguments forms are deprecated.])
  483. m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
  484. AC_SUBST([PACKAGE], [$1])dnl
  485. AC_SUBST([VERSION], [$2])],
  486. [_AM_SET_OPTIONS([$1])dnl
  487. dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
  488. m4_if(
  489. m4_ifdef([AC_PACKAGE_NAME], [ok]):m4_ifdef([AC_PACKAGE_VERSION], [ok]),
  490. [ok:ok],,
  491. [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
  492. AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
  493. AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
  494. _AM_IF_OPTION([no-define],,
  495. [AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
  496. AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
  497. # Some tools Automake needs.
  498. AC_REQUIRE([AM_SANITY_CHECK])dnl
  499. AC_REQUIRE([AC_ARG_PROGRAM])dnl
  500. AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
  501. AM_MISSING_PROG([AUTOCONF], [autoconf])
  502. AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
  503. AM_MISSING_PROG([AUTOHEADER], [autoheader])
  504. AM_MISSING_PROG([MAKEINFO], [makeinfo])
  505. AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
  506. AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
  507. AC_REQUIRE([AC_PROG_MKDIR_P])dnl
  508. # For better backward compatibility. To be removed once Automake 1.9.x
  509. # dies out for good. For more background, see:
  510. # <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
  511. # <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
  512. AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
  513. # We need awk for the "check" target (and possibly the TAP driver). The
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  515. AC_REQUIRE([AC_PROG_AWK])dnl
  516. AC_REQUIRE([AC_PROG_MAKE_SET])dnl
  517. AC_REQUIRE([AM_SET_LEADING_DOT])dnl
  518. _AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
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  520. [_AM_PROG_TAR([v7])])])
  521. _AM_IF_OPTION([no-dependencies],,
  522. [AC_PROVIDE_IFELSE([AC_PROG_CC],
  523. [_AM_DEPENDENCIES([CC])],
  524. [m4_define([AC_PROG_CC],
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  526. AC_PROVIDE_IFELSE([AC_PROG_CXX],
  527. [_AM_DEPENDENCIES([CXX])],
  528. [m4_define([AC_PROG_CXX],
  529. m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
  530. AC_PROVIDE_IFELSE([AC_PROG_OBJC],
  531. [_AM_DEPENDENCIES([OBJC])],
  532. [m4_define([AC_PROG_OBJC],
  533. m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
  534. AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
  535. [_AM_DEPENDENCIES([OBJCXX])],
  536. [m4_define([AC_PROG_OBJCXX],
  537. m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
  538. ])
  539. AC_REQUIRE([AM_SILENT_RULES])dnl
  540. dnl The testsuite driver may need to know about EXEEXT, so add the
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  543. AC_CONFIG_COMMANDS_PRE(dnl
  544. [m4_provide_if([_AM_COMPILER_EXEEXT],
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  546. # POSIX will say in a future version that running "rm -f" with no argument
  547. # is OK; and we want to be able to make that assumption in our Makefile
  548. # recipes. So use an aggressive probe to check that the usage we want is
  549. # actually supported "in the wild" to an acceptable degree.
  550. # See automake bug#10828.
  551. # To make any issue more visible, cause the running configure to be aborted
  552. # by default if the 'rm' program in use doesn't match our expectations; the
  553. # user can still override this though.
  554. if rm -f && rm -fr && rm -rf; then : OK; else
  555. cat >&2 <<'END'
  556. Oops!
  557. Your 'rm' program seems unable to run without file operands specified
  558. on the command line, even when the '-f' option is present. This is contrary
  559. to the behaviour of most rm programs out there, and not conforming with
  560. the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
  561. Please tell bug-automake@gnu.org about your system, including the value
  562. of your $PATH and any error possibly output before this message. This
  563. can help us improve future automake versions.
  564. END
  565. if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
  566. echo 'Configuration will proceed anyway, since you have set the' >&2
  567. echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
  568. echo >&2
  569. else
  570. cat >&2 <<'END'
  571. Aborting the configuration process, to ensure you take notice of the issue.
  572. You can download and install GNU coreutils to get an 'rm' implementation
  573. that behaves properly: <https://www.gnu.org/software/coreutils/>.
  574. If you want to complete the configuration process using your problematic
  575. 'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
  576. to "yes", and re-run configure.
  577. END
  578. AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
  579. fi
  580. fi
  581. dnl The trailing newline in this macro's definition is deliberate, for
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  583. dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
  584. ])
  585. dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion. Do not
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  588. m4_define([_AC_COMPILER_EXEEXT],
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  590. # When config.status generates a header, we must update the stamp-h file.
  591. # This file resides in the same directory as the config header
  592. # that is generated. The stamp files are numbered to have different names.
  593. # Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
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  595. # our stamp files there.
  596. AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
  597. [# Compute $1's index in $config_headers.
  598. _am_arg=$1
  599. _am_stamp_count=1
  600. for _am_header in $config_headers :; do
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  607. done
  608. echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
  609. # Copyright (C) 2001-2020 Free Software Foundation, Inc.
  610. #
  611. # This file is free software; the Free Software Foundation
  612. # gives unlimited permission to copy and/or distribute it,
  613. # with or without modifications, as long as this notice is preserved.
  614. # AM_PROG_INSTALL_SH
  615. # ------------------
  616. # Define $install_sh.
  617. AC_DEFUN([AM_PROG_INSTALL_SH],
  618. [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
  619. if test x"${install_sh+set}" != xset; then
  620. case $am_aux_dir in
  621. *\ * | *\ *)
  622. install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
  623. *)
  624. install_sh="\${SHELL} $am_aux_dir/install-sh"
  625. esac
  626. fi
  627. AC_SUBST([install_sh])])
  628. # Copyright (C) 2003-2020 Free Software Foundation, Inc.
  629. #
  630. # This file is free software; the Free Software Foundation
  631. # gives unlimited permission to copy and/or distribute it,
  632. # with or without modifications, as long as this notice is preserved.
  633. # Check whether the underlying file-system supports filenames
  634. # with a leading dot. For instance MS-DOS doesn't.
  635. AC_DEFUN([AM_SET_LEADING_DOT],
  636. [rm -rf .tst 2>/dev/null
  637. mkdir .tst 2>/dev/null
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  640. else
  641. am__leading_dot=_
  642. fi
  643. rmdir .tst 2>/dev/null
  644. AC_SUBST([am__leading_dot])])
  645. # Check to see how 'make' treats includes. -*- Autoconf -*-
  646. # Copyright (C) 2001-2020 Free Software Foundation, Inc.
  647. #
  648. # This file is free software; the Free Software Foundation
  649. # gives unlimited permission to copy and/or distribute it,
  650. # with or without modifications, as long as this notice is preserved.
  651. # AM_MAKE_INCLUDE()
  652. # -----------------
  653. # Check whether make has an 'include' directive that can support all
  654. # the idioms we need for our automatic dependency tracking code.
  655. AC_DEFUN([AM_MAKE_INCLUDE],
  656. [AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
  657. cat > confinc.mk << 'END'
  658. am__doit:
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  660. .PHONY: am__doit
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  662. am__include="#"
  663. am__quote=
  664. # BSD make does it like this.
  665. echo '.include "confinc.mk" # ignored' > confmf.BSD
  666. # Other make implementations (GNU, Solaris 10, AIX) do it like this.
  667. echo 'include confinc.mk # ignored' > confmf.GNU
  668. _am_result=no
  669. for s in GNU BSD; do
  670. AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
  671. AS_CASE([$?:`cat confinc.out 2>/dev/null`],
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  674. [BSD], [am__include='.include' am__quote='"'],
  675. [am__include='include' am__quote=''])])
  676. if test "$am__include" != "#"; then
  677. _am_result="yes ($s style)"
  678. break
  679. fi
  680. done
  681. rm -f confinc.* confmf.*
  682. AC_MSG_RESULT([${_am_result}])
  683. AC_SUBST([am__include])])
  684. AC_SUBST([am__quote])])
  685. # Fake the existence of programs that GNU maintainers use. -*- Autoconf -*-
  686. # Copyright (C) 1997-2020 Free Software Foundation, Inc.
  687. #
  688. # This file is free software; the Free Software Foundation
  689. # gives unlimited permission to copy and/or distribute it,
  690. # with or without modifications, as long as this notice is preserved.
  691. # AM_MISSING_PROG(NAME, PROGRAM)
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  693. AC_DEFUN([AM_MISSING_PROG],
  694. [AC_REQUIRE([AM_MISSING_HAS_RUN])
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  697. # AM_MISSING_HAS_RUN
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  700. # If it is, set am_missing_run to use it, otherwise, to nothing.
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  703. AC_REQUIRE_AUX_FILE([missing])dnl
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  715. # Helper functions for option handling. -*- Autoconf -*-
  716. # Copyright (C) 2001-2020 Free Software Foundation, Inc.
  717. #
  718. # This file is free software; the Free Software Foundation
  719. # gives unlimited permission to copy and/or distribute it,
  720. # with or without modifications, as long as this notice is preserved.
  721. # _AM_MANGLE_OPTION(NAME)
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  723. AC_DEFUN([_AM_MANGLE_OPTION],
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  730. # _AM_SET_OPTIONS(OPTIONS)
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  732. # OPTIONS is a space-separated list of Automake options.
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  735. # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
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  737. # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
  738. AC_DEFUN([_AM_IF_OPTION],
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  740. # Copyright (C) 1999-2020 Free Software Foundation, Inc.
  741. #
  742. # This file is free software; the Free Software Foundation
  743. # gives unlimited permission to copy and/or distribute it,
  744. # with or without modifications, as long as this notice is preserved.
  745. # _AM_PROG_CC_C_O
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  751. AC_REQUIRE_AUX_FILE([compile])dnl
  752. AC_LANG_PUSH([C])dnl
  753. AC_CACHE_CHECK(
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  757. # Make sure it works both with $CC and with simple cc.
  758. # Following AC_PROG_CC_C_O, we do the test twice because some
  759. # compilers refuse to overwrite an existing .o file with -o,
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  761. am_cv_prog_cc_c_o=yes
  762. for am_i in 1 2; do
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  770. done
  771. rm -f core conftest*
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  773. if test "$am_cv_prog_cc_c_o" != yes; then
  774. # Losing compiler, so override with the script.
  775. # FIXME: It is wrong to rewrite CC.
  776. # But if we don't then we get into trouble of one sort or another.
  777. # A longer-term fix would be to have automake use am__CC in this case,
  778. # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
  779. CC="$am_aux_dir/compile $CC"
  780. fi
  781. AC_LANG_POP([C])])
  782. # For backward compatibility.
  783. AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
  784. # Copyright (C) 2001-2020 Free Software Foundation, Inc.
  785. #
  786. # This file is free software; the Free Software Foundation
  787. # gives unlimited permission to copy and/or distribute it,
  788. # with or without modifications, as long as this notice is preserved.
  789. # AM_RUN_LOG(COMMAND)
  790. # -------------------
  791. # Run COMMAND, save the exit status in ac_status, and log it.
  792. # (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
  793. AC_DEFUN([AM_RUN_LOG],
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  797. echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
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  799. # Check to make sure that the build environment is sane. -*- Autoconf -*-
  800. # Copyright (C) 1996-2020 Free Software Foundation, Inc.
  801. #
  802. # This file is free software; the Free Software Foundation
  803. # gives unlimited permission to copy and/or distribute it,
  804. # with or without modifications, as long as this notice is preserved.
  805. # AM_SANITY_CHECK
  806. # ---------------
  807. AC_DEFUN([AM_SANITY_CHECK],
  808. [AC_MSG_CHECKING([whether build environment is sane])
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  811. am_lf='
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  815. AC_MSG_ERROR([unsafe absolute working directory name]);;
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  817. case $srcdir in
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  819. AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
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  821. # Do 'set' in a subshell so we don't clobber the current shell's
  822. # arguments. Must try -L first in case configure is actually a
  823. # symlink; some systems play weird games with the mod time of symlinks
  824. # (eg FreeBSD returns the mod time of the symlink's containing
  825. # directory).
  826. if (
  827. am_has_slept=no
  828. for am_try in 1 2; do
  829. echo "timestamp, slept: $am_has_slept" > conftest.file
  830. set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
  831. if test "$[*]" = "X"; then
  832. # -L didn't work.
  833. set X `ls -t "$srcdir/configure" conftest.file`
  834. fi
  835. if test "$[*]" != "X $srcdir/configure conftest.file" \
  836. && test "$[*]" != "X conftest.file $srcdir/configure"; then
  837. # If neither matched, then we have a broken ls. This can happen
  838. # if, for instance, CONFIG_SHELL is bash and it inherits a
  839. # broken ls alias from the environment. This has actually
  840. # happened. Such a system could not be considered "sane".
  841. AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken
  842. alias in your environment])
  843. fi
  844. if test "$[2]" = conftest.file || test $am_try -eq 2; then
  845. break
  846. fi
  847. # Just in case.
  848. sleep 1
  849. am_has_slept=yes
  850. done
  851. test "$[2]" = conftest.file
  852. )
  853. then
  854. # Ok.
  855. :
  856. else
  857. AC_MSG_ERROR([newly created file is older than distributed files!
  858. Check your system clock])
  859. fi
  860. AC_MSG_RESULT([yes])
  861. # If we didn't sleep, we still need to ensure time stamps of config.status and
  862. # generated files are strictly newer.
  863. am_sleep_pid=
  864. if grep 'slept: no' conftest.file >/dev/null 2>&1; then
  865. ( sleep 1 ) &
  866. am_sleep_pid=$!
  867. fi
  868. AC_CONFIG_COMMANDS_PRE(
  869. [AC_MSG_CHECKING([that generated files are newer than configure])
  870. if test -n "$am_sleep_pid"; then
  871. # Hide warnings about reused PIDs.
  872. wait $am_sleep_pid 2>/dev/null
  873. fi
  874. AC_MSG_RESULT([done])])
  875. rm -f conftest.file
  876. ])
  877. # Copyright (C) 2009-2020 Free Software Foundation, Inc.
  878. #
  879. # This file is free software; the Free Software Foundation
  880. # gives unlimited permission to copy and/or distribute it,
  881. # with or without modifications, as long as this notice is preserved.
  882. # AM_SILENT_RULES([DEFAULT])
  883. # --------------------------
  884. # Enable less verbose build rules; with the default set to DEFAULT
  885. # ("yes" being less verbose, "no" or empty being verbose).
  886. AC_DEFUN([AM_SILENT_RULES],
  887. [AC_ARG_ENABLE([silent-rules], [dnl
  888. AS_HELP_STRING(
  889. [--enable-silent-rules],
  890. [less verbose build output (undo: "make V=1")])
  891. AS_HELP_STRING(
  892. [--disable-silent-rules],
  893. [verbose build output (undo: "make V=0")])dnl
  894. ])
  895. case $enable_silent_rules in @%:@ (((
  896. yes) AM_DEFAULT_VERBOSITY=0;;
  897. no) AM_DEFAULT_VERBOSITY=1;;
  898. *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
  899. esac
  900. dnl
  901. dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
  902. dnl do not support nested variable expansions.
  903. dnl See automake bug#9928 and bug#10237.
  904. am_make=${MAKE-make}
  905. AC_CACHE_CHECK([whether $am_make supports nested variables],
  906. [am_cv_make_support_nested_variables],
  907. [if AS_ECHO([['TRUE=$(BAR$(V))
  908. BAR0=false
  909. BAR1=true
  910. V=1
  911. am__doit:
  912. @$(TRUE)
  913. .PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
  914. am_cv_make_support_nested_variables=yes
  915. else
  916. am_cv_make_support_nested_variables=no
  917. fi])
  918. if test $am_cv_make_support_nested_variables = yes; then
  919. dnl Using '$V' instead of '$(V)' breaks IRIX make.
  920. AM_V='$(V)'
  921. AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
  922. else
  923. AM_V=$AM_DEFAULT_VERBOSITY
  924. AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
  925. fi
  926. AC_SUBST([AM_V])dnl
  927. AM_SUBST_NOTMAKE([AM_V])dnl
  928. AC_SUBST([AM_DEFAULT_V])dnl
  929. AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
  930. AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
  931. AM_BACKSLASH='\'
  932. AC_SUBST([AM_BACKSLASH])dnl
  933. _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
  934. ])
  935. # Copyright (C) 2001-2020 Free Software Foundation, Inc.
  936. #
  937. # This file is free software; the Free Software Foundation
  938. # gives unlimited permission to copy and/or distribute it,
  939. # with or without modifications, as long as this notice is preserved.
  940. # AM_PROG_INSTALL_STRIP
  941. # ---------------------
  942. # One issue with vendor 'install' (even GNU) is that you can't
  943. # specify the program used to strip binaries. This is especially
  944. # annoying in cross-compiling environments, where the build's strip
  945. # is unlikely to handle the host's binaries.
  946. # Fortunately install-sh will honor a STRIPPROG variable, so we
  947. # always use install-sh in "make install-strip", and initialize
  948. # STRIPPROG with the value of the STRIP variable (set by the user).
  949. AC_DEFUN([AM_PROG_INSTALL_STRIP],
  950. [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
  951. # Installed binaries are usually stripped using 'strip' when the user
  952. # run "make install-strip". However 'strip' might not be the right
  953. # tool to use in cross-compilation environments, therefore Automake
  954. # will honor the 'STRIP' environment variable to overrule this program.
  955. dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
  956. if test "$cross_compiling" != no; then
  957. AC_CHECK_TOOL([STRIP], [strip], :)
  958. fi
  959. INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
  960. AC_SUBST([INSTALL_STRIP_PROGRAM])])
  961. # Copyright (C) 2006-2020 Free Software Foundation, Inc.
  962. #
  963. # This file is free software; the Free Software Foundation
  964. # gives unlimited permission to copy and/or distribute it,
  965. # with or without modifications, as long as this notice is preserved.
  966. # _AM_SUBST_NOTMAKE(VARIABLE)
  967. # ---------------------------
  968. # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
  969. # This macro is traced by Automake.
  970. AC_DEFUN([_AM_SUBST_NOTMAKE])
  971. # AM_SUBST_NOTMAKE(VARIABLE)
  972. # --------------------------
  973. # Public sister of _AM_SUBST_NOTMAKE.
  974. AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
  975. # Check how to create a tarball. -*- Autoconf -*-
  976. # Copyright (C) 2004-2020 Free Software Foundation, Inc.
  977. #
  978. # This file is free software; the Free Software Foundation
  979. # gives unlimited permission to copy and/or distribute it,
  980. # with or without modifications, as long as this notice is preserved.
  981. # _AM_PROG_TAR(FORMAT)
  982. # --------------------
  983. # Check how to create a tarball in format FORMAT.
  984. # FORMAT should be one of 'v7', 'ustar', or 'pax'.
  985. #
  986. # Substitute a variable $(am__tar) that is a command
  987. # writing to stdout a FORMAT-tarball containing the directory
  988. # $tardir.
  989. # tardir=directory && $(am__tar) > result.tar
  990. #
  991. # Substitute a variable $(am__untar) that extract such
  992. # a tarball read from stdin.
  993. # $(am__untar) < result.tar
  994. #
  995. AC_DEFUN([_AM_PROG_TAR],
  996. [# Always define AMTAR for backward compatibility. Yes, it's still used
  997. # in the wild :-( We should find a proper way to deprecate it ...
  998. AC_SUBST([AMTAR], ['$${TAR-tar}'])
  999. # We'll loop over all known methods to create a tar archive until one works.
  1000. _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
  1001. m4_if([$1], [v7],
  1002. [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
  1003. [m4_case([$1],
  1004. [ustar],
  1005. [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
  1006. # There is notably a 21 bits limit for the UID and the GID. In fact,
  1007. # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
  1008. # and bug#13588).
  1009. am_max_uid=2097151 # 2^21 - 1
  1010. am_max_gid=$am_max_uid
  1011. # The $UID and $GID variables are not portable, so we need to resort
  1012. # to the POSIX-mandated id(1) utility. Errors in the 'id' calls
  1013. # below are definitely unexpected, so allow the users to see them
  1014. # (that is, avoid stderr redirection).
  1015. am_uid=`id -u || echo unknown`
  1016. am_gid=`id -g || echo unknown`
  1017. AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
  1018. if test $am_uid -le $am_max_uid; then
  1019. AC_MSG_RESULT([yes])
  1020. else
  1021. AC_MSG_RESULT([no])
  1022. _am_tools=none
  1023. fi
  1024. AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
  1025. if test $am_gid -le $am_max_gid; then
  1026. AC_MSG_RESULT([yes])
  1027. else
  1028. AC_MSG_RESULT([no])
  1029. _am_tools=none
  1030. fi],
  1031. [pax],
  1032. [],
  1033. [m4_fatal([Unknown tar format])])
  1034. AC_MSG_CHECKING([how to create a $1 tar archive])
  1035. # Go ahead even if we have the value already cached. We do so because we
  1036. # need to set the values for the 'am__tar' and 'am__untar' variables.
  1037. _am_tools=${am_cv_prog_tar_$1-$_am_tools}
  1038. for _am_tool in $_am_tools; do
  1039. case $_am_tool in
  1040. gnutar)
  1041. for _am_tar in tar gnutar gtar; do
  1042. AM_RUN_LOG([$_am_tar --version]) && break
  1043. done
  1044. am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
  1045. am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
  1046. am__untar="$_am_tar -xf -"
  1047. ;;
  1048. plaintar)
  1049. # Must skip GNU tar: if it does not support --format= it doesn't create
  1050. # ustar tarball either.
  1051. (tar --version) >/dev/null 2>&1 && continue
  1052. am__tar='tar chf - "$$tardir"'
  1053. am__tar_='tar chf - "$tardir"'
  1054. am__untar='tar xf -'
  1055. ;;
  1056. pax)
  1057. am__tar='pax -L -x $1 -w "$$tardir"'
  1058. am__tar_='pax -L -x $1 -w "$tardir"'
  1059. am__untar='pax -r'
  1060. ;;
  1061. cpio)
  1062. am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
  1063. am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
  1064. am__untar='cpio -i -H $1 -d'
  1065. ;;
  1066. none)
  1067. am__tar=false
  1068. am__tar_=false
  1069. am__untar=false
  1070. ;;
  1071. esac
  1072. # If the value was cached, stop now. We just wanted to have am__tar
  1073. # and am__untar set.
  1074. test -n "${am_cv_prog_tar_$1}" && break
  1075. # tar/untar a dummy directory, and stop if the command works.
  1076. rm -rf conftest.dir
  1077. mkdir conftest.dir
  1078. echo GrepMe > conftest.dir/file
  1079. AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
  1080. rm -rf conftest.dir
  1081. if test -s conftest.tar; then
  1082. AM_RUN_LOG([$am__untar <conftest.tar])
  1083. AM_RUN_LOG([cat conftest.dir/file])
  1084. grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
  1085. fi
  1086. done
  1087. rm -rf conftest.dir
  1088. AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
  1089. AC_MSG_RESULT([$am_cv_prog_tar_$1])])
  1090. AC_SUBST([am__tar])
  1091. AC_SUBST([am__untar])
  1092. ]) # _AM_PROG_TAR
  1093. m4_include([m4/gettext.m4])
  1094. m4_include([m4/iconv.m4])
  1095. m4_include([m4/lib-ld.m4])
  1096. m4_include([m4/lib-link.m4])
  1097. m4_include([m4/lib-prefix.m4])
  1098. m4_include([m4/nls.m4])
  1099. m4_include([m4/po.m4])
  1100. m4_include([m4/progtest.m4])