1 # generated automatically by aclocal 1.15 -*- Autoconf -*-
3 # Copyright (C) 1996-2014 Free Software Foundation, Inc.
5 # This file is free software; the Free Software Foundation
6 # gives unlimited permission to copy and/or distribute it,
7 # with or without modifications, as long as this notice is preserved.
9 # This program is distributed in the hope that it will be useful,
10 # but WITHOUT ANY WARRANTY, to the extent permitted by law; without
11 # even the implied warranty of MERCHANTABILITY or FITNESS FOR A
14 m4_ifndef([AC_CONFIG_MACRO_DIRS], [m4_defun([_AM_CONFIG_MACRO_DIRS], [])m4_defun([AC_CONFIG_MACRO_DIRS], [_AM_CONFIG_MACRO_DIRS($@)])])
15 m4_ifndef([AC_AUTOCONF_VERSION],
16 [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
17 m4_if(m4_defn([AC_AUTOCONF_VERSION]), [2.69],,
18 [m4_warning([this file was generated for autoconf 2.69.
19 You have another version of autoconf. It may work, but is not guaranteed to.
20 If you have problems, you may need to regenerate the build system entirely.
21 To do so, use the procedure documented by the package, typically 'autoreconf'.])])
23 dnl pkg.m4 - Macros to locate and utilise pkg-config. -*- Autoconf -*-
24 dnl serial 11 (pkg-config-0.29.1)
26 dnl Copyright © 2004 Scott James Remnant <scott@netsplit.com>.
27 dnl Copyright © 2012-2015 Dan Nicholson <dbn.lists@gmail.com>
29 dnl This program is free software; you can redistribute it and/or modify
30 dnl it under the terms of the GNU General Public License as published by
31 dnl the Free Software Foundation; either version 2 of the License, or
32 dnl (at your option) any later version.
34 dnl This program is distributed in the hope that it will be useful, but
35 dnl WITHOUT ANY WARRANTY; without even the implied warranty of
36 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
37 dnl General Public License for more details.
39 dnl You should have received a copy of the GNU General Public License
40 dnl along with this program; if not, write to the Free Software
41 dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
44 dnl As a special exception to the GNU General Public License, if you
45 dnl distribute this file as part of a program that contains a
46 dnl configuration script generated by Autoconf, you may include it under
47 dnl the same distribution terms that you use for the rest of that
50 dnl PKG_PREREQ(MIN-VERSION)
51 dnl -----------------------
54 dnl Verify that the version of the pkg-config macros are at least
55 dnl MIN-VERSION. Unlike PKG_PROG_PKG_CONFIG, which checks the user's
56 dnl installed version of pkg-config, this checks the developer's version
57 dnl of pkg.m4 when generating configure.
59 dnl To ensure that this macro is defined, also add:
60 dnl m4_ifndef([PKG_PREREQ],
61 dnl [m4_fatal([must install pkg-config 0.29 or later before running autoconf/autogen])])
63 dnl See the "Since" comment for each macro you use to see what version
64 dnl of the macros you require.
65 m4_defun([PKG_PREREQ],
66 [m4_define([PKG_MACROS_VERSION], [0.29.1])
67 m4_if(m4_version_compare(PKG_MACROS_VERSION, [$1]), -1,
68 [m4_fatal([pkg.m4 version $1 or higher is required but ]PKG_MACROS_VERSION[ found])])
71 dnl PKG_PROG_PKG_CONFIG([MIN-VERSION])
72 dnl ----------------------------------
75 dnl Search for the pkg-config tool and set the PKG_CONFIG variable to
76 dnl first found in the path. Checks that the version of pkg-config found
77 dnl is at least MIN-VERSION. If MIN-VERSION is not specified, 0.9.0 is
78 dnl used since that's the first version where most current features of
79 dnl pkg-config existed.
80 AC_DEFUN([PKG_PROG_PKG_CONFIG],
81 [m4_pattern_forbid([^_?PKG_[A-Z_]+$])
82 m4_pattern_allow([^PKG_CONFIG(_(PATH|LIBDIR|SYSROOT_DIR|ALLOW_SYSTEM_(CFLAGS|LIBS)))?$])
83 m4_pattern_allow([^PKG_CONFIG_(DISABLE_UNINSTALLED|TOP_BUILD_DIR|DEBUG_SPEW)$])
84 AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility])
85 AC_ARG_VAR([PKG_CONFIG_PATH], [directories to add to pkg-config's search path])
86 AC_ARG_VAR([PKG_CONFIG_LIBDIR], [path overriding pkg-config's built-in search path])
88 if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then
89 AC_PATH_TOOL([PKG_CONFIG], [pkg-config])
91 if test -n "$PKG_CONFIG"; then
92 _pkg_min_version=m4_default([$1], [0.9.0])
93 AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version])
94 if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then
101 ])dnl PKG_PROG_PKG_CONFIG
103 dnl PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
104 dnl -------------------------------------------------------------------
107 dnl Check to see whether a particular set of modules exists. Similar to
108 dnl PKG_CHECK_MODULES(), but does not set variables or print errors.
110 dnl Please remember that m4 expands AC_REQUIRE([PKG_PROG_PKG_CONFIG])
111 dnl only at the first occurence in configure.ac, so if the first place
112 dnl it's called might be skipped (such as if it is within an "if", you
113 dnl have to call PKG_CHECK_EXISTS manually
114 AC_DEFUN([PKG_CHECK_EXISTS],
115 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
116 if test -n "$PKG_CONFIG" && \
117 AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then
118 m4_default([$2], [:])
119 m4_ifvaln([$3], [else
123 dnl _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES])
124 dnl ---------------------------------------------
125 dnl Internal wrapper calling pkg-config via PKG_CONFIG and setting
126 dnl pkg_failed based on the result.
127 m4_define([_PKG_CONFIG],
128 [if test -n "$$1"; then
130 elif test -n "$PKG_CONFIG"; then
131 PKG_CHECK_EXISTS([$3],
132 [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null`
133 test "x$?" != "x0" && pkg_failed=yes ],
140 dnl _PKG_SHORT_ERRORS_SUPPORTED
141 dnl ---------------------------
142 dnl Internal check to see if pkg-config supports short errors.
143 AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED],
144 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])
145 if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
146 _pkg_short_errors_supported=yes
148 _pkg_short_errors_supported=no
150 ])dnl _PKG_SHORT_ERRORS_SUPPORTED
153 dnl PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
154 dnl [ACTION-IF-NOT-FOUND])
155 dnl --------------------------------------------------------------
158 dnl Note that if there is a possibility the first call to
159 dnl PKG_CHECK_MODULES might not happen, you should be sure to include an
160 dnl explicit call to PKG_PROG_PKG_CONFIG in your configure.ac
161 AC_DEFUN([PKG_CHECK_MODULES],
162 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
163 AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl
164 AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl
167 AC_MSG_CHECKING([for $1])
169 _PKG_CONFIG([$1][_CFLAGS], [cflags], [$2])
170 _PKG_CONFIG([$1][_LIBS], [libs], [$2])
172 m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS
173 and $1[]_LIBS to avoid the need to call pkg-config.
174 See the pkg-config man page for more details.])
176 if test $pkg_failed = yes; then
178 _PKG_SHORT_ERRORS_SUPPORTED
179 if test $_pkg_short_errors_supported = yes; then
180 $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "$2" 2>&1`
182 $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "$2" 2>&1`
184 # Put the nasty error message in config.log where it belongs
185 echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD
187 m4_default([$4], [AC_MSG_ERROR(
188 [Package requirements ($2) were not met:
192 Consider adjusting the PKG_CONFIG_PATH environment variable if you
193 installed software in a non-standard prefix.
197 elif test $pkg_failed = untried; then
199 m4_default([$4], [AC_MSG_FAILURE(
200 [The pkg-config script could not be found or is too old. Make sure it
201 is in your PATH or set the PKG_CONFIG environment variable to the full
206 To get pkg-config, see <http://pkg-config.freedesktop.org/>.])[]dnl
209 $1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS
210 $1[]_LIBS=$pkg_cv_[]$1[]_LIBS
214 ])dnl PKG_CHECK_MODULES
217 dnl PKG_CHECK_MODULES_STATIC(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
218 dnl [ACTION-IF-NOT-FOUND])
219 dnl ---------------------------------------------------------------------
222 dnl Checks for existence of MODULES and gathers its build flags with
223 dnl static libraries enabled. Sets VARIABLE-PREFIX_CFLAGS from --cflags
224 dnl and VARIABLE-PREFIX_LIBS from --libs.
226 dnl Note that if there is a possibility the first call to
227 dnl PKG_CHECK_MODULES_STATIC might not happen, you should be sure to
228 dnl include an explicit call to PKG_PROG_PKG_CONFIG in your
230 AC_DEFUN([PKG_CHECK_MODULES_STATIC],
231 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
232 _save_PKG_CONFIG=$PKG_CONFIG
233 PKG_CONFIG="$PKG_CONFIG --static"
234 PKG_CHECK_MODULES($@)
235 PKG_CONFIG=$_save_PKG_CONFIG[]dnl
236 ])dnl PKG_CHECK_MODULES_STATIC
239 dnl PKG_INSTALLDIR([DIRECTORY])
240 dnl -------------------------
243 dnl Substitutes the variable pkgconfigdir as the location where a module
244 dnl should install pkg-config .pc files. By default the directory is
245 dnl $libdir/pkgconfig, but the default can be changed by passing
246 dnl DIRECTORY. The user can override through the --with-pkgconfigdir
248 AC_DEFUN([PKG_INSTALLDIR],
249 [m4_pushdef([pkg_default], [m4_default([$1], ['${libdir}/pkgconfig'])])
250 m4_pushdef([pkg_description],
251 [pkg-config installation directory @<:@]pkg_default[@:>@])
252 AC_ARG_WITH([pkgconfigdir],
253 [AS_HELP_STRING([--with-pkgconfigdir], pkg_description)],,
254 [with_pkgconfigdir=]pkg_default)
255 AC_SUBST([pkgconfigdir], [$with_pkgconfigdir])
256 m4_popdef([pkg_default])
257 m4_popdef([pkg_description])
261 dnl PKG_NOARCH_INSTALLDIR([DIRECTORY])
262 dnl --------------------------------
265 dnl Substitutes the variable noarch_pkgconfigdir as the location where a
266 dnl module should install arch-independent pkg-config .pc files. By
267 dnl default the directory is $datadir/pkgconfig, but the default can be
268 dnl changed by passing DIRECTORY. The user can override through the
269 dnl --with-noarch-pkgconfigdir parameter.
270 AC_DEFUN([PKG_NOARCH_INSTALLDIR],
271 [m4_pushdef([pkg_default], [m4_default([$1], ['${datadir}/pkgconfig'])])
272 m4_pushdef([pkg_description],
273 [pkg-config arch-independent installation directory @<:@]pkg_default[@:>@])
274 AC_ARG_WITH([noarch-pkgconfigdir],
275 [AS_HELP_STRING([--with-noarch-pkgconfigdir], pkg_description)],,
276 [with_noarch_pkgconfigdir=]pkg_default)
277 AC_SUBST([noarch_pkgconfigdir], [$with_noarch_pkgconfigdir])
278 m4_popdef([pkg_default])
279 m4_popdef([pkg_description])
280 ])dnl PKG_NOARCH_INSTALLDIR
283 dnl PKG_CHECK_VAR(VARIABLE, MODULE, CONFIG-VARIABLE,
284 dnl [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
285 dnl -------------------------------------------
288 dnl Retrieves the value of the pkg-config variable for the given module.
289 AC_DEFUN([PKG_CHECK_VAR],
290 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
291 AC_ARG_VAR([$1], [value of $3 for $2, overriding pkg-config])dnl
293 _PKG_CONFIG([$1], [variable="][$3]["], [$2])
294 AS_VAR_COPY([$1], [pkg_cv_][$1])
296 AS_VAR_IF([$1], [""], [$5], [$4])dnl
299 # ===========================================================================
300 # http://www.gnu.org/software/autoconf-archive/ax_cxx_compile_stdcxx.html
301 # ===========================================================================
305 # MM_AX_CXX_COMPILE_STDCXX(VERSION, [ext|noext], [mandatory|optional])
309 # Check for baseline language coverage in the compiler for the specified
310 # version of the C++ standard. If necessary, add switches to CXXFLAGS to
311 # enable support. VERSION may be '11' (for the C++11 standard) or '14'
312 # (for the C++14 standard).
314 # The second argument, if specified, indicates whether you insist on an
315 # extended mode (e.g. -std=gnu++11) or a strict conformance mode (e.g.
316 # -std=c++11). If neither is specified, you get whatever works, with
317 # preference for an extended mode.
319 # The third argument, if specified 'mandatory' or if left unspecified,
320 # indicates that baseline support for the specified C++ standard is
321 # required and that the macro should error out if no mode with that
322 # support is found. If specified 'optional', then configuration proceeds
323 # regardless, after defining HAVE_CXX${VERSION} if and only if a
324 # supporting mode is found.
328 # Copyright (c) 2008 Benjamin Kosnik <bkoz@redhat.com>
329 # Copyright (c) 2012 Zack Weinberg <zackw@panix.com>
330 # Copyright (c) 2013 Roy Stogner <roystgnr@ices.utexas.edu>
331 # Copyright (c) 2014, 2015 Google Inc.; contributed by Alexey Sokolov <sokolov@google.com>
332 # Copyright (c) 2015 Paul Norman <penorman@mac.com>
333 # Copyright (c) 2015 Moritz Klammler <moritz@klammler.eu>
335 # Copying and distribution of this file, with or without modification, are
336 # permitted in any medium without royalty provided the copyright notice
337 # and this notice are preserved. This file is offered as-is, without any
340 # Copied from ax_cxx_compile_stdcxx.m4 and added MM_ prefix to avoid
341 # possible conflict with AX_CXX_COMPILE_STDCXX in other modules.
345 dnl This macro is based on the code from the MM_AX_CXX_COMPILE_STDCXX_11 macro
346 dnl (serial version number 13).
348 AC_DEFUN([MM_AX_CXX_COMPILE_STDCXX], [dnl
349 m4_if([$1], [11], [],
351 [$1], [17], [m4_fatal([support for C++17 not yet implemented in MM_AX_CXX_COMPILE_STDCXX])],
352 [m4_fatal([invalid first argument `$1' to MM_AX_CXX_COMPILE_STDCXX])])dnl
356 [m4_fatal([invalid second argument `$2' to MM_AX_CXX_COMPILE_STDCXX])])dnl
357 m4_if([$3], [], [ax_cxx_compile_cxx$1_required=true],
358 [$3], [mandatory], [ax_cxx_compile_cxx$1_required=true],
359 [$3], [optional], [ax_cxx_compile_cxx$1_required=false],
360 [m4_fatal([invalid third argument `$3' to MM_AX_CXX_COMPILE_STDCXX])])
361 AC_LANG_PUSH([C++])dnl
363 AC_CACHE_CHECK(whether $CXX supports C++$1 features by default,
364 ax_cv_cxx_compile_cxx$1,
365 [AC_COMPILE_IFELSE([AC_LANG_SOURCE([_MM_AX_CXX_COMPILE_STDCXX_testbody_$1])],
366 [ax_cv_cxx_compile_cxx$1=yes],
367 [ax_cv_cxx_compile_cxx$1=no])])
368 if test x$ax_cv_cxx_compile_cxx$1 = xyes; then
372 m4_if([$2], [noext], [], [dnl
373 if test x$ac_success = xno; then
374 for switch in -std=gnu++$1 -std=gnu++0x; do
375 cachevar=AS_TR_SH([ax_cv_cxx_compile_cxx$1_$switch])
376 AC_CACHE_CHECK(whether $CXX supports C++$1 features with $switch,
378 [ac_save_CXXFLAGS="$CXXFLAGS"
379 CXXFLAGS="$CXXFLAGS $switch"
380 AC_COMPILE_IFELSE([AC_LANG_SOURCE([_MM_AX_CXX_COMPILE_STDCXX_testbody_$1])],
381 [eval $cachevar=yes],
383 CXXFLAGS="$ac_save_CXXFLAGS"])
384 if eval test x\$$cachevar = xyes; then
385 CXXFLAGS="$CXXFLAGS $switch"
392 m4_if([$2], [ext], [], [dnl
393 if test x$ac_success = xno; then
394 dnl HP's aCC needs +std=c++11 according to:
395 dnl http://h21007.www2.hp.com/portal/download/files/unprot/aCxx/PDF_Release_Notes/769149-001.pdf
396 dnl Cray's crayCC needs "-h std=c++11"
397 for switch in -std=c++$1 -std=c++0x +std=c++$1 "-h std=c++$1"; do
398 cachevar=AS_TR_SH([ax_cv_cxx_compile_cxx$1_$switch])
399 AC_CACHE_CHECK(whether $CXX supports C++$1 features with $switch,
401 [ac_save_CXXFLAGS="$CXXFLAGS"
402 CXXFLAGS="$CXXFLAGS $switch"
403 AC_COMPILE_IFELSE([AC_LANG_SOURCE([_MM_AX_CXX_COMPILE_STDCXX_testbody_$1])],
404 [eval $cachevar=yes],
406 CXXFLAGS="$ac_save_CXXFLAGS"])
407 if eval test x\$$cachevar = xyes; then
408 CXXFLAGS="$CXXFLAGS $switch"
415 if test x$ax_cxx_compile_cxx$1_required = xtrue; then
416 if test x$ac_success = xno; then
417 AC_MSG_ERROR([*** A compiler with support for C++$1 language features is required.])
420 if test x$ac_success = xno; then
422 AC_MSG_NOTICE([No compiler with C++$1 support was found])
425 AC_DEFINE(HAVE_CXX$1,1,
426 [define if the compiler supports basic C++$1 syntax])
434 dnl Test body for checking C++11 support
436 m4_define([_MM_AX_CXX_COMPILE_STDCXX_testbody_11],
437 _MM_AX_CXX_COMPILE_STDCXX_testbody_new_in_11
441 dnl Test body for checking C++14 support
443 m4_define([_MM_AX_CXX_COMPILE_STDCXX_testbody_14],
444 _MM_AX_CXX_COMPILE_STDCXX_testbody_new_in_11
445 _MM_AX_CXX_COMPILE_STDCXX_testbody_new_in_14
449 dnl Tests for new features in C++11
451 m4_define([_MM_AX_CXX_COMPILE_STDCXX_testbody_new_in_11], [[
453 // If the compiler admits that it is not ready for C++11, why torture it?
454 // Hopefully, this will speed up the test.
458 #error "This is not a C++ compiler"
460 #elif __cplusplus < 201103L
462 #error "This is not a C++11 compiler"
469 namespace test_static_assert
472 template <typename T>
475 static_assert(sizeof(int) <= sizeof(T), "not big enough");
480 namespace test_final_override
488 struct Derived : public Base
490 virtual void f() override {}
495 namespace test_double_right_angle_brackets
498 template < typename T >
501 typedef check<void> single_type;
502 typedef check<check<void>> double_type;
503 typedef check<check<check<void>>> triple_type;
504 typedef check<check<check<check<void>>>> quadruple_type;
508 namespace test_decltype
521 namespace test_type_deduction
524 template < typename T1, typename T2 >
527 static const bool value = false;
530 template < typename T >
533 static const bool value = true;
536 template < typename T1, typename T2 >
538 add(T1 a1, T2 a2) -> decltype(a1 + a2)
544 test(const int c, volatile int v)
546 static_assert(is_same<int, decltype(0)>::value == true, "");
547 static_assert(is_same<int, decltype(c)>::value == false, "");
548 static_assert(is_same<int, decltype(v)>::value == false, "");
551 auto sumi = ac + av + 'x';
552 auto sumf = ac + av + 1.0;
553 static_assert(is_same<int, decltype(ac)>::value == true, "");
554 static_assert(is_same<int, decltype(av)>::value == true, "");
555 static_assert(is_same<int, decltype(sumi)>::value == true, "");
556 static_assert(is_same<int, decltype(sumf)>::value == false, "");
557 static_assert(is_same<int, decltype(add(c, v))>::value == true, "");
558 return (sumf > 0.0) ? sumi : add(c, v);
563 namespace test_noexcept
566 int f() { return 0; }
567 int g() noexcept { return 0; }
569 static_assert(noexcept(f()) == false, "");
570 static_assert(noexcept(g()) == true, "");
574 namespace test_constexpr
577 template < typename CharT >
578 unsigned long constexpr
579 strlen_c_r(const CharT *const s, const unsigned long acc) noexcept
581 return *s ? strlen_c_r(s + 1, acc + 1) : acc;
584 template < typename CharT >
585 unsigned long constexpr
586 strlen_c(const CharT *const s) noexcept
588 return strlen_c_r(s, 0UL);
591 static_assert(strlen_c("") == 0UL, "");
592 static_assert(strlen_c("1") == 1UL, "");
593 static_assert(strlen_c("example") == 7UL, "");
594 static_assert(strlen_c("another\0example") == 7UL, "");
598 namespace test_rvalue_references
604 static constexpr int value = N;
607 answer<1> f(int&) { return answer<1>(); }
608 answer<2> f(const int&) { return answer<2>(); }
609 answer<3> f(int&&) { return answer<3>(); }
616 static_assert(decltype(f(i))::value == 1, "");
617 static_assert(decltype(f(c))::value == 2, "");
618 static_assert(decltype(f(0))::value == 3, "");
623 namespace test_uniform_initialization
628 static const int zero {};
629 static const int one {1};
632 static_assert(test::zero == 0, "");
633 static_assert(test::one == 1, "");
637 namespace test_lambdas
643 auto lambda1 = [](){};
644 auto lambda2 = lambda1;
652 auto a = [](int i, int j){ return i + j; }(1, 2);
653 auto b = []() -> int { return '0'; }();
654 auto c = [=](){ return a + b; }();
655 auto d = [&](){ return c; }();
656 auto e = [a, &b](int x) mutable {
657 const auto identity = [](int y){ return y; };
658 for (auto i = 0; i < a; ++i)
660 return x + identity(a + b);
662 return a + b + c + d + e;
668 const auto nullary = [](){ return 0; };
669 const auto unary = [](int x){ return x; };
670 using nullary_t = decltype(nullary);
671 using unary_t = decltype(unary);
672 const auto higher1st = [](nullary_t f){ return f(); };
673 const auto higher2nd = [unary](nullary_t f1){
674 return [unary, f1](unary_t f2){ return f2(unary(f1())); };
676 return higher1st(nullary) + higher2nd(nullary)(unary);
681 namespace test_variadic_templates
687 template <int N0, int... N1toN>
688 struct sum<N0, N1toN...>
690 static constexpr auto value = N0 + sum<N1toN...>::value;
696 static constexpr auto value = 0;
699 static_assert(sum<>::value == 0, "");
700 static_assert(sum<1>::value == 1, "");
701 static_assert(sum<23>::value == 23, "");
702 static_assert(sum<1, 2>::value == 3, "");
703 static_assert(sum<5, 5, 11>::value == 21, "");
704 static_assert(sum<2, 3, 5, 7, 11, 13>::value == 41, "");
708 // http://stackoverflow.com/questions/13728184/template-aliases-and-sfinae
709 // Clang 3.1 fails with headers of libstd++ 4.8.3 when using std::function
711 namespace test_template_alias_sfinae
717 using member = typename T::member_type;
723 void func(member<T>*) {}
727 void test() { func<foo>(0); }
733 #endif // __cplusplus >= 201103L
738 dnl Tests for new features in C++14
740 m4_define([_MM_AX_CXX_COMPILE_STDCXX_testbody_new_in_14], [[
742 // If the compiler admits that it is not ready for C++14, why torture it?
743 // Hopefully, this will speed up the test.
747 #error "This is not a C++ compiler"
749 #elif __cplusplus < 201402L
751 #error "This is not a C++14 compiler"
758 namespace test_polymorphic_lambdas
764 const auto lambda = [](auto&&... args){
765 const auto istiny = [](auto x){
766 return (sizeof(x) == 1UL) ? 1 : 0;
768 const int aretiny[] = { istiny(args)... };
771 return lambda(1, 1L, 1.0f, '1');
776 namespace test_binary_literals
779 constexpr auto ivii = 0b0000000000101010;
780 static_assert(ivii == 42, "wrong value");
784 namespace test_generalized_constexpr
787 template < typename CharT >
788 constexpr unsigned long
789 strlen_c(const CharT *const s) noexcept
792 for (auto p = s; *p; ++p)
797 static_assert(strlen_c("") == 0UL, "");
798 static_assert(strlen_c("x") == 1UL, "");
799 static_assert(strlen_c("test") == 4UL, "");
800 static_assert(strlen_c("another\0test") == 7UL, "");
804 namespace test_lambda_init_capture
811 const auto lambda1 = [a = x](int b){ return a + b; };
812 const auto lambda2 = [a = lambda1(x)](){ return a; };
818 namespace test_digit_seperators
821 constexpr auto ten_million = 100'000'000;
822 static_assert(ten_million == 100000000, "");
826 namespace test_return_type_deduction
829 auto f(int& x) { return x; }
830 decltype(auto) g(int& x) { return x; }
832 template < typename T1, typename T2 >
835 static constexpr auto value = false;
838 template < typename T >
841 static constexpr auto value = true;
848 static_assert(is_same<int, decltype(f(x))>::value, "");
849 static_assert(is_same<int&, decltype(g(x))>::value, "");
857 #endif // __cplusplus >= 201402L
864 AC_DEFUN([_MM_PRE_INIT], [m4_pattern_forbid([^_?MM_])])
866 m4_define([_MM_PREREQ],
868 m4_if(m4_quote(m4_version_compare([$2], [$3])), [-1],
869 [m4_fatal([$4 requires $1 $3 (version $2 is installed)])])[]dnl
872 AC_DEFUN([MM_PREREQ],
874 m4_assert([$# >= 1])[]dnl
875 AC_REQUIRE([_MM_PRE_INIT])[]dnl
876 _MM_PREREQ([mm-common], [0.9.10], [$1], m4_defn([AC_PACKAGE_NAME]))[]dnl
882 m4_define([_MM_PROG_GCC_VISIBILITY_CHECK],
884 AC_PROVIDE([$0])[]dnl
885 AC_CACHE_CHECK([for GCC symbol visibility options],
886 [mm_cv_gcc_visibility_cxxflags],
888 mm_save_CXXFLAGS=$CXXFLAGS
889 CXXFLAGS="$CXXFLAGS -fvisibility=hidden -fvisibility-inlines-hidden"
891 AC_LINK_IFELSE([AC_LANG_PROGRAM([[
892 #pragma GCC visibility push(default)
893 namespace Mm { void __attribute__((__visibility__("hidden"))) mmfunc(); }
895 #pragma GCC visibility pop
896 ]], [[Mm::mmfunc();]])],
897 [mm_cv_gcc_visibility_cxxflags='-fvisibility=hidden -fvisibility-inlines-hidden'],
898 [mm_cv_gcc_visibility_cxxflags=none])
900 CXXFLAGS=$mm_save_CXXFLAGS])[]dnl
903 AC_DEFUN([MM_PROG_GCC_VISIBILITY],
905 m4_assert([$# >= 1])[]dnl
906 AC_LANG_ASSERT([C++])[]dnl
907 AC_REQUIRE([_MM_PRE_INIT])[]dnl
908 AC_REQUIRE([_MM_PROG_GCC_VISIBILITY_CHECK])[]dnl
909 AS_IF([test "x$mm_cv_gcc_visibility_cxxflags" != xnone],
910 [$1=$mm_cv_gcc_visibility_cxxflags], [$1=])
914 m4_define([_MM_ARG_DISABLE_DEPRECATED_API_OPTION],
916 AC_PROVIDE([$0])[]dnl
917 AC_ARG_ENABLE([deprecated-api],
918 [AS_HELP_STRING([--disable-deprecated-api],
919 [omit deprecated API from the library])],
920 [mm_enable_deprecated_api=$enableval],
921 [mm_enable_deprecated_api=yes])[]dnl
922 AS_IF([test "x$mm_enable_deprecated_api" = xno],
923 [AC_MSG_WARN([[Deprecated API will not be built, breaking compatibility.
924 Do not use this option for distribution packages.]])],
925 [AC_MSG_NOTICE([[Deprecated API will be built, for backwards-compatibility.]])])
926 AM_CONDITIONAL([DISABLE_DEPRECATED_API], [test "x$mm_enable_deprecated_api" = xno])[]dnl
929 m4_define([_MM_ARG_DISABLE_DEPRECATED_API_DEFINE],
930 [m4_foreach_w([mm_prefix], [$1],
931 [AC_DEFINE(m4_defn([mm_prefix])[_DISABLE_DEPRECATED], [1],
932 [Define to omit deprecated API from the library.])
935 AC_DEFUN([MM_ARG_DISABLE_DEPRECATED_API],
937 AC_REQUIRE([_MM_PRE_INIT])[]dnl
938 AC_REQUIRE([_MM_ARG_DISABLE_DEPRECATED_API_OPTION])[]dnl
939 AS_IF([test "x$mm_enable_deprecated_api" = xno],
940 [_MM_ARG_DISABLE_DEPRECATED_API_DEFINE(
941 m4_ifval([$1], [[$1]], [AS_TR_CPP(m4_defn([AC_PACKAGE_TARNAME]))]))])[]dnl
947 m4_define([_MM_CONFIG_DOCTOOL_DIR],
949 AC_PROVIDE([$0])[]dnl
950 AC_REQUIRE([PKG_PROG_PKG_CONFIG])[]dnl
952 AC_MSG_CHECKING([location of documentation utilities])
953 AS_IF([test "x$MMDOCTOOLDIR" = x],
955 MMDOCTOOLDIR=`$PKG_CONFIG --variable=doctooldir mm-common-util 2>&AS_MESSAGE_LOG_FD`
956 AS_IF([test "[$]?" -ne 0],
957 [AC_MSG_ERROR([[not found
958 The required module mm-common-util could not be found on this system. If you
959 are running a binary distribution and the mm-common package is installed,
960 make sure that any separate development package for mm-common is installed
961 as well. If you built mm-common yourself, it may be necessary to adjust
962 the PKG_CONFIG_PATH environment variable for pkg-config to find it.
965 AC_MSG_RESULT([$MMDOCTOOLDIR])[]dnl
968 AC_DEFUN([MM_CONFIG_DOCTOOL_DIR],
970 AC_REQUIRE([_MM_PRE_INIT])[]dnl
971 AC_REQUIRE([MM_CHECK_GNU_MAKE])[]dnl
972 m4_ifval([$1], [MMDOCTOOLDIR='[$]{top_srcdir}/$1'], [AC_REQUIRE([_MM_CONFIG_DOCTOOL_DIR])])
973 AM_CONDITIONAL([DIST_DOCTOOLS], [test 'x$1' != 'x'])dnl
974 AC_SUBST([MMDOCTOOLDIR])[]dnl
977 m4_define([_MM_ARG_ENABLE_DOCUMENTATION],
979 AC_PROVIDE([$0])[]dnl
981 AC_ARG_VAR([DOT], [path to dot utility])[]dnl
982 AC_ARG_VAR([DOXYGEN], [path to Doxygen utility])[]dnl
983 AC_ARG_VAR([XSLTPROC], [path to xsltproc utility])[]dnl
985 AC_PATH_PROG([DOT], [dot], [dot])
986 AC_PATH_PROG([DOXYGEN], [doxygen], [doxygen])
987 AC_PATH_PROG([XSLTPROC], [xsltproc], [xsltproc])
989 AC_ARG_ENABLE([documentation],
990 [AS_HELP_STRING([--disable-documentation],
991 [do not build or install the documentation])],
992 [ENABLE_DOCUMENTATION=$enableval],
993 [ENABLE_DOCUMENTATION=auto])
994 AS_IF([test "x$ENABLE_DOCUMENTATION" != xno],
997 AS_IF([test "x$MMDOCTOOLDIR" = x], [mm_err='dnl
998 The mm-common-util module is available, but the installation of mm-common on this
999 machine is missing the shared documentation utilities of the GNOME C++
1000 bindings. It may be necessary to upgrade to a more recent release of
1001 mm-common in order to build '$PACKAGE_NAME' and install the documentation.'],
1002 [test "x$PERL" = xperl], [mm_err='Perl is required for installing the documentation.'],
1003 [test "x$USE_MAINTAINER_MODE" != xno],
1005 test "x$DOT" != xdot || mm_err=' dot'
1006 test "x$DOXYGEN" != xdoxygen || mm_err="$mm_err doxygen"
1007 test "x$XSLTPROC" != xxsltproc || mm_err="$mm_err xsltproc"
1008 test -z "$mm_err" || mm_err='The documentation cannot be generated because
1009 not all of the required tools are available:'$mm_err
1011 AS_IF([test -z "$mm_err"], [ENABLE_DOCUMENTATION=yes],
1012 [test "x$ENABLE_DOCUMENTATION" = xyes], [AC_MSG_FAILURE([[$mm_err]])],
1013 [ENABLE_DOCUMENTATION=no; AC_MSG_WARN([[$mm_err]])])
1015 AM_CONDITIONAL([ENABLE_DOCUMENTATION], [test "x$ENABLE_DOCUMENTATION" = xyes])
1016 AC_SUBST([DOXYGEN_TAGFILES], [[]])
1017 AC_SUBST([DOCINSTALL_FLAGS], [[]])[]dnl
1020 AC_DEFUN([MM_ARG_ENABLE_DOCUMENTATION],
1022 AC_BEFORE([$0], [MM_ARG_WITH_TAGFILE_DOC])[]dnl
1023 AC_REQUIRE([_MM_PRE_INIT])[]dnl
1024 AC_REQUIRE([MM_CONFIG_DOCTOOL_DIR])[]dnl
1025 AC_REQUIRE([MM_PATH_PERL])[]dnl
1026 AC_REQUIRE([_MM_ARG_ENABLE_DOCUMENTATION])[]dnl
1029 m4_define([_MM_TR_URI],
1031 [`expr "X$1" : 'X\(.*[^\\/]\)[\\/]*' 2>&]AS_MESSAGE_LOG_FD[ |]dnl
1032 [ sed 's|[\\]|/|g;s| |%20|g;s|^/|file:///|;s|^.:/|file:///&|' 2>&]AS_MESSAGE_LOG_FD[`]dnl
1035 m4_define([_MM_ARG_WITH_TAGFILE_DOC],
1037 AC_MSG_CHECKING([for $1 documentation])
1038 AC_ARG_WITH([$1-doc],
1039 [AS_HELP_STRING([[--with-$1-doc=[TAGFILE@]HTMLREFDIR]],
1040 [Link to external $1 documentation]m4_ifval([$4], [[ [auto]]]))],
1042 mm_htmlrefdir=`[expr "X@$withval" : '.*@\(.*\)' 2>&]AS_MESSAGE_LOG_FD`
1043 mm_tagname=`[expr "X/$withval" : '[^@]*[\\/]\([^\\/@]*\)@' 2>&]AS_MESSAGE_LOG_FD`
1044 mm_tagpath=`[expr "X$withval" : 'X\([^@]*\)@' 2>&]AS_MESSAGE_LOG_FD`
1045 test "x$mm_tagname" != x || mm_tagname="$3"
1046 test "x$mm_tagpath" != x || mm_tagpath=$mm_tagname[]dnl
1050 mm_tagpath=$mm_tagname[]dnl
1052 # Prepend working direcory if the tag file path starts with ./ or ../
1053 AS_CASE([$mm_tagpath], [[.[\\/]*|..[\\/]*]], [mm_tagpath=`pwd`/$mm_tagpath])
1056 # If no local directory was specified, get the default from the .pc file
1057 AS_IF([test "x$mm_htmlrefdir" = x],
1059 mm_htmlrefdir=`$PKG_CONFIG --variable=htmlrefdir "$4" 2>&AS_MESSAGE_LOG_FD`dnl
1061 # If the user specified a Web URL, allow it to override the public location
1062 AS_CASE([$mm_htmlrefdir], [[http://*|https://*]], [mm_htmlrefpub=$mm_htmlrefdir],
1064 mm_htmlrefpub=`$PKG_CONFIG --variable=htmlrefpub "$4" 2>&AS_MESSAGE_LOG_FD`
1065 test "x$mm_htmlrefpub" != x || mm_htmlrefpub=$mm_htmlrefdir
1066 test "x$mm_htmlrefdir" != x || mm_htmlrefdir=$mm_htmlrefpub
1068 # The user-supplied tag-file name takes precedence if it includes the path
1069 AS_CASE([$mm_tagpath], [[*[\\/]*]],,
1071 mm_doxytagfile=`$PKG_CONFIG --variable=doxytagfile "$4" 2>&AS_MESSAGE_LOG_FD`
1072 test "x$mm_doxytagfile" = x || mm_tagpath=$mm_doxytagfile
1074 # Remove trailing slashes and translate to URI
1075 mm_htmlrefpub=_MM_TR_URI([$mm_htmlrefpub])
1077 mm_htmlrefdir=_MM_TR_URI([$mm_htmlrefdir])
1079 AC_MSG_RESULT([$mm_tagpath@$mm_htmlrefdir])
1081 AS_IF([test "x$USE_MAINTAINER_MODE" != xno && test ! -f "$mm_tagpath"],
1082 [AC_MSG_WARN([Doxygen tag file $3 not found])])
1083 AS_IF([test "x$mm_htmlrefdir" = x],
1084 [AC_MSG_WARN([Location of external $1 documentation not set])],
1085 [AS_IF([test "x$DOCINSTALL_FLAGS" = x],
1086 [DOCINSTALL_FLAGS="-l '$mm_tagname@$mm_htmlrefdir/'"],
1087 [DOCINSTALL_FLAGS="$DOCINSTALL_FLAGS -l '$mm_tagname@$mm_htmlrefdir/'"])])
1089 AS_IF([test "x$mm_$2" = x], [mm_val=$mm_tagpath], [mm_val="$mm_tagpath=$mm_$2"])
1090 AS_IF([test "x$DOXYGEN_TAGFILES" = x],
1091 [DOXYGEN_TAGFILES=[\]"$mm_val[\]"],
1092 [DOXYGEN_TAGFILES="$DOXYGEN_TAGFILES "[\]"$mm_val[\]"])[]dnl
1095 AC_DEFUN([MM_ARG_WITH_TAGFILE_DOC],
1097 m4_assert([$# >= 1])[]dnl
1098 m4_ifval([$2], [AC_REQUIRE([PKG_PROG_PKG_CONFIG])])[]dnl
1099 AC_REQUIRE([MM_CONFIG_DOCTOOL_DIR])[]dnl
1100 AC_REQUIRE([_MM_ARG_ENABLE_DOCUMENTATION])[]dnl
1102 AS_IF([test "x$ENABLE_DOCUMENTATION" != xno],
1103 [_MM_ARG_WITH_TAGFILE_DOC(m4_quote(m4_bpatsubst([$1], [[+]*\([-+][0123456789]\|[._]\).*$])),
1104 [htmlref]m4_ifval([$2], [[pub]], [[dir]]), [$1], [$2])])[]dnl
1110 m4_define([_MM_INIT_MODULE_VERSION],
1113 [AC_SUBST([$2][_MAJOR_VERSION], [$3])
1114 AC_DEFINE([$2][_MAJOR_VERSION], [$3], [Major version number of $1.])
1117 [AC_SUBST([$2][_MINOR_VERSION], [$4])
1118 AC_DEFINE([$2][_MINOR_VERSION], [$4], [Minor version number of $1.])
1121 [AC_SUBST([$2][_MICRO_VERSION], [$5])
1122 AC_DEFINE([$2][_MICRO_VERSION], [$5], [Micro version number of $1.])
1126 m4_define([_MM_INIT_MODULE_SUBST],
1128 AC_SUBST([$5][_MODULE_NAME], ['$1'])
1129 AC_SUBST([$5][_VERSION], ['$2'])
1131 [AC_SUBST([$5][_API_VERSION], ['$4'])
1133 _MM_INIT_MODULE_VERSION([$3], [$5], m4_bpatsubst([$2], [[^0123456789]+], [,]))[]dnl
1136 m4_define([_MM_INIT_MODULE_BASENAME],
1137 [_MM_INIT_MODULE_SUBST([$1], [$2], [$3], [$4],
1138 m4_quote(AS_TR_CPP(m4_quote(m4_translit([$3], [+], [X])))))])
1140 AC_DEFUN([MM_INIT_MODULE],
1142 m4_assert([$# >= 1])[]dnl
1143 AC_REQUIRE([_MM_PRE_INIT])[]dnl
1144 AC_REQUIRE([MM_CHECK_GNU_MAKE])[]dnl
1145 _MM_INIT_MODULE_BASENAME([$1],
1146 m4_quote(m4_ifval([$2], [$2], m4_defn([AC_PACKAGE_VERSION]))),
1147 m4_quote(m4_bpatsubst([$1], [[-.0123456789]+$])),
1148 m4_quote(m4_bregexp([$1], [-?\([.0123456789]+\)$], [\1])))[]dnl
1154 m4_define([_MM_CHECK_GNU_MAKE],
1156 AC_PROVIDE([$0])[]dnl
1157 AC_MSG_CHECKING([whether [$]{MAKE-make} supports GNU make features])
1158 cat >conftest.make <<'_MMEOF'
1159 override reverse = [$](2)[$](subst ,, )[$](1)
1160 override result := [$](word 2,[$](call reverse,success,failure))
1161 all: ; test '[$](result)' = success
1164 AS_IF([[$]{MAKE-make} -f conftest.make >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD],
1165 [mm_gnu_make=yes], [mm_gnu_make=no])
1167 AC_MSG_RESULT([$mm_gnu_make])
1168 AS_IF([test "x$mm_gnu_make" != xyes],
1169 [AC_MSG_FAILURE([[The GNU make program is required to build $PACKAGE_NAME.]])])[]dnl
1172 AC_DEFUN([MM_CHECK_GNU_MAKE],
1174 AC_REQUIRE([_MM_PRE_INIT])[]dnl
1175 AC_REQUIRE([_MM_CHECK_GNU_MAKE])[]dnl
1178 m4_define([_MM_PATH_PERL],
1180 AC_PROVIDE([$0])[]dnl
1181 AC_ARG_VAR([PERL], [path to Perl interpreter])[]dnl
1182 AC_PATH_PROG([PERL], [perl], [perl])[]dnl
1185 AC_DEFUN([MM_PATH_PERL],
1187 AC_REQUIRE([_MM_PRE_INIT])[]dnl
1188 AC_REQUIRE([_MM_PATH_PERL])[]dnl
1191 m4_define([_MM_CHECK_PERL],
1193 AS_IF([$PERL -e "require v$1; exit 0;" >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD],
1194 [$2], m4_ifval([$2$3], [[$3]],
1195 [[AC_MSG_FAILURE([[At least Perl ]$1[ is required to build $PACKAGE_NAME.]])]]))[]dnl
1198 AC_DEFUN([MM_CHECK_PERL],
1200 AC_REQUIRE([_MM_PRE_INIT])[]dnl
1201 AC_REQUIRE([_MM_PATH_PERL])[]dnl
1202 _MM_CHECK_PERL(m4_ifval([$1], [[$1]], [[5.6.0]]), [$2], [$3])[]dnl
1205 AC_DEFUN([MM_PKG_CONFIG_SUBST],
1207 m4_assert([$# >= 2])[]dnl
1208 AC_REQUIRE([_MM_PRE_INIT])[]dnl
1209 AC_REQUIRE([PKG_PROG_PKG_CONFIG])[]dnl
1210 AC_MSG_CHECKING([for $1])
1212 AS_IF([test -z "[$]{$1+set}"],
1213 [$1=`$PKG_CONFIG $2 2>&AS_MESSAGE_LOG_FD`
1214 AS_IF([test "[$]?" -eq 0], [$3], [$4])])
1216 AC_MSG_RESULT([[$]$1])
1223 m4_define([_MM_ARG_ENABLE_WARNINGS_OPTION],
1225 AC_PROVIDE([$0])[]dnl
1226 AC_ARG_ENABLE([warnings],
1227 [AS_HELP_STRING([[--enable-warnings[=min|max|fatal|no]]],
1228 [set compiler pedantry level [default=min]])],
1229 [mm_enable_warnings=$enableval],
1230 [mm_enable_warnings=min])[]dnl
1233 AC_DEFUN([MM_ARG_ENABLE_WARNINGS],
1235 m4_assert([$# >= 3])[]dnl
1236 AC_REQUIRE([_MM_PRE_INIT])[]dnl
1237 AC_REQUIRE([_MM_ARG_ENABLE_WARNINGS_OPTION])[]dnl
1239 AS_CASE([$ac_compile],
1240 [[*'$CXXFLAGS '*]], [mm_lang='C++' mm_cc=$CXX mm_conftest="conftest.[$]{ac_ext-cc}"],
1241 [[*'$CFLAGS '*]], [mm_lang=C mm_cc=$CC mm_conftest="conftest.[$]{ac_ext-c}"],
1242 [AC_MSG_ERROR([[current language is neither C nor C++]])])
1244 AC_MSG_CHECKING([which $mm_lang compiler warning flags to use])
1245 m4_ifval([$4], [mm_deprecation_flags=
1248 AS_CASE([$mm_enable_warnings],
1249 [no], [mm_warning_flags=],
1250 [max], [mm_warning_flags="$3"],
1251 [fatal], [mm_warning_flags="$3 -Werror"[]m4_ifval([$4], [
1254 mm_deprecation_flags="$mm_deprecation_flags-D[$]{mm_prefix}_DISABLE_DEPRECATED "
1256 [mm_warning_flags="$2"])
1258 AS_IF([test "x$mm_warning_flags" != x],
1260 # Keep in mind that the dummy source must be devoid of any
1261 # problems that might cause diagnostics.
1262 AC_LANG_CONFTEST([AC_LANG_SOURCE([[
1263 int main(int argc, char** argv) { return !argv ? 0 : argc; }
1265 for mm_flag in $mm_warning_flags
1267 # Test whether the compiler accepts the flag. Look at standard output,
1268 # since GCC only shows a warning message if an option is not supported.
1269 mm_cc_out=`$mm_cc $mm_tested_flags $mm_flag -c "$mm_conftest" 2>&1 || echo failed`
1270 rm -f "conftest.[$]{OBJEXT-o}"
1272 AS_IF([test "x$mm_cc_out" = x],
1273 [AS_IF([test "x$mm_tested_flags" = x],
1274 [mm_tested_flags=$mm_flag],
1275 [mm_tested_flags="$mm_tested_flags $mm_flag"])],
1276 [cat <<_MMEOF >&AS_MESSAGE_LOG_FD
1281 rm -f "$mm_conftest"
1283 mm_all_flags=m4_ifval([$4], [$mm_deprecation_flags])$mm_tested_flags
1284 AC_SUBST([$1], [$mm_all_flags])
1286 test "x$mm_all_flags" != x || mm_all_flags=none
1287 AC_MSG_RESULT([$mm_all_flags])[]dnl
1290 # Copyright (C) 2002-2014 Free Software Foundation, Inc.
1292 # This file is free software; the Free Software Foundation
1293 # gives unlimited permission to copy and/or distribute it,
1294 # with or without modifications, as long as this notice is preserved.
1296 # AM_AUTOMAKE_VERSION(VERSION)
1297 # ----------------------------
1298 # Automake X.Y traces this macro to ensure aclocal.m4 has been
1299 # generated from the m4 files accompanying Automake X.Y.
1300 # (This private macro should not be called outside this file.)
1301 AC_DEFUN([AM_AUTOMAKE_VERSION],
1302 [am__api_version='1.15'
1303 dnl Some users find AM_AUTOMAKE_VERSION and mistake it for a way to
1304 dnl require some minimum version. Point them to the right macro.
1305 m4_if([$1], [1.15], [],
1306 [AC_FATAL([Do not call $0, use AM_INIT_AUTOMAKE([$1]).])])dnl
1309 # _AM_AUTOCONF_VERSION(VERSION)
1310 # -----------------------------
1311 # aclocal traces this macro to find the Autoconf version.
1312 # This is a private macro too. Using m4_define simplifies
1313 # the logic in aclocal, which can simply ignore this definition.
1314 m4_define([_AM_AUTOCONF_VERSION], [])
1316 # AM_SET_CURRENT_AUTOMAKE_VERSION
1317 # -------------------------------
1318 # Call AM_AUTOMAKE_VERSION and AM_AUTOMAKE_VERSION so they can be traced.
1319 # This function is AC_REQUIREd by AM_INIT_AUTOMAKE.
1320 AC_DEFUN([AM_SET_CURRENT_AUTOMAKE_VERSION],
1321 [AM_AUTOMAKE_VERSION([1.15])dnl
1322 m4_ifndef([AC_AUTOCONF_VERSION],
1323 [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
1324 _AM_AUTOCONF_VERSION(m4_defn([AC_AUTOCONF_VERSION]))])
1326 # AM_AUX_DIR_EXPAND -*- Autoconf -*-
1328 # Copyright (C) 2001-2014 Free Software Foundation, Inc.
1330 # This file is free software; the Free Software Foundation
1331 # gives unlimited permission to copy and/or distribute it,
1332 # with or without modifications, as long as this notice is preserved.
1334 # For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets
1335 # $ac_aux_dir to '$srcdir/foo'. In other projects, it is set to
1336 # '$srcdir', '$srcdir/..', or '$srcdir/../..'.
1338 # Of course, Automake must honor this variable whenever it calls a
1339 # tool from the auxiliary directory. The problem is that $srcdir (and
1340 # therefore $ac_aux_dir as well) can be either absolute or relative,
1341 # depending on how configure is run. This is pretty annoying, since
1342 # it makes $ac_aux_dir quite unusable in subdirectories: in the top
1343 # source directory, any form will work fine, but in subdirectories a
1344 # relative path needs to be adjusted first.
1346 # $ac_aux_dir/missing
1347 # fails when called from a subdirectory if $ac_aux_dir is relative
1348 # $top_srcdir/$ac_aux_dir/missing
1349 # fails if $ac_aux_dir is absolute,
1350 # fails when called from a subdirectory in a VPATH build with
1351 # a relative $ac_aux_dir
1353 # The reason of the latter failure is that $top_srcdir and $ac_aux_dir
1354 # are both prefixed by $srcdir. In an in-source build this is usually
1355 # harmless because $srcdir is '.', but things will broke when you
1356 # start a VPATH build or use an absolute $srcdir.
1358 # So we could use something similar to $top_srcdir/$ac_aux_dir/missing,
1359 # iff we strip the leading $srcdir from $ac_aux_dir. That would be:
1360 # am_aux_dir='\$(top_srcdir)/'`expr "$ac_aux_dir" : "$srcdir//*\(.*\)"`
1361 # and then we would define $MISSING as
1362 # MISSING="\${SHELL} $am_aux_dir/missing"
1363 # This will work as long as MISSING is not called from configure, because
1364 # unfortunately $(top_srcdir) has no meaning in configure.
1365 # However there are other variables, like CC, which are often used in
1366 # configure, and could therefore not use this "fixed" $ac_aux_dir.
1368 # Another solution, used here, is to always expand $ac_aux_dir to an
1369 # absolute PATH. The drawback is that using absolute paths prevent a
1370 # configured tree to be moved without reconfiguration.
1372 AC_DEFUN([AM_AUX_DIR_EXPAND],
1373 [AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
1374 # Expand $ac_aux_dir to an absolute path.
1375 am_aux_dir=`cd "$ac_aux_dir" && pwd`
1378 # AM_CONDITIONAL -*- Autoconf -*-
1380 # Copyright (C) 1997-2014 Free Software Foundation, Inc.
1382 # This file is free software; the Free Software Foundation
1383 # gives unlimited permission to copy and/or distribute it,
1384 # with or without modifications, as long as this notice is preserved.
1386 # AM_CONDITIONAL(NAME, SHELL-CONDITION)
1387 # -------------------------------------
1388 # Define a conditional.
1389 AC_DEFUN([AM_CONDITIONAL],
1390 [AC_PREREQ([2.52])dnl
1391 m4_if([$1], [TRUE], [AC_FATAL([$0: invalid condition: $1])],
1392 [$1], [FALSE], [AC_FATAL([$0: invalid condition: $1])])dnl
1393 AC_SUBST([$1_TRUE])dnl
1394 AC_SUBST([$1_FALSE])dnl
1395 _AM_SUBST_NOTMAKE([$1_TRUE])dnl
1396 _AM_SUBST_NOTMAKE([$1_FALSE])dnl
1397 m4_define([_AM_COND_VALUE_$1], [$2])dnl
1405 AC_CONFIG_COMMANDS_PRE(
1406 [if test -z "${$1_TRUE}" && test -z "${$1_FALSE}"; then
1407 AC_MSG_ERROR([[conditional "$1" was never defined.
1408 Usually this means the macro was only invoked conditionally.]])
1411 # Copyright (C) 1999-2014 Free Software Foundation, Inc.
1413 # This file is free software; the Free Software Foundation
1414 # gives unlimited permission to copy and/or distribute it,
1415 # with or without modifications, as long as this notice is preserved.
1418 # There are a few dirty hacks below to avoid letting 'AC_PROG_CC' be
1419 # written in clear, in which case automake, when reading aclocal.m4,
1420 # will think it sees a *use*, and therefore will trigger all it's
1421 # C support machinery. Also note that it means that autoscan, seeing
1422 # CC etc. in the Makefile, will ask for an AC_PROG_CC use...
1425 # _AM_DEPENDENCIES(NAME)
1426 # ----------------------
1427 # See how the compiler implements dependency checking.
1428 # NAME is "CC", "CXX", "OBJC", "OBJCXX", "UPC", or "GJC".
1429 # We try a few techniques and use that to set a single cache variable.
1431 # We don't AC_REQUIRE the corresponding AC_PROG_CC since the latter was
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1435 AC_DEFUN([_AM_DEPENDENCIES],
1436 [AC_REQUIRE([AM_SET_DEPDIR])dnl
1437 AC_REQUIRE([AM_OUTPUT_DEPENDENCY_COMMANDS])dnl
1438 AC_REQUIRE([AM_MAKE_INCLUDE])dnl
1439 AC_REQUIRE([AM_DEP_TRACK])dnl
1441 m4_if([$1], [CC], [depcc="$CC" am_compiler_list=],
1442 [$1], [CXX], [depcc="$CXX" am_compiler_list=],
1443 [$1], [OBJC], [depcc="$OBJC" am_compiler_list='gcc3 gcc'],
1444 [$1], [OBJCXX], [depcc="$OBJCXX" am_compiler_list='gcc3 gcc'],
1445 [$1], [UPC], [depcc="$UPC" am_compiler_list=],
1446 [$1], [GCJ], [depcc="$GCJ" am_compiler_list='gcc3 gcc'],
1447 [depcc="$$1" am_compiler_list=])
1449 AC_CACHE_CHECK([dependency style of $depcc],
1450 [am_cv_$1_dependencies_compiler_type],
1451 [if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
1452 # We make a subdir and do the tests there. Otherwise we can end up
1453 # making bogus files that we don't know about and never remove. For
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1455 # making a dummy file named 'D' -- because '-MD' means "put the output
1459 # Copy depcomp to subdir because otherwise we won't find it if we're
1460 # using a relative directory.
1461 cp "$am_depcomp" conftest.dir
1463 # We will build objects and dependencies in a subdirectory because
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1465 # both Tru64's cc and ICC support -MD to output dependencies as a
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1471 am_cv_$1_dependencies_compiler_type=none
1472 if test "$am_compiler_list" = ""; then
1473 am_compiler_list=`sed -n ['s/^#*\([a-zA-Z0-9]*\))$/\1/p'] < ./depcomp`
1477 [case " $depcc " in #(
1478 *\ -arch\ *\ -arch\ *) am__universal=true ;;
1481 [case " $depcc " in #(
1482 *\ -arch\ *\ -arch\ *) am__universal=true ;;
1485 for depmode in $am_compiler_list; do
1486 # Setup a source with many dependencies, because some compilers
1487 # like to wrap large dependency lists on column 80 (with \), and
1488 # we should not choose a depcomp mode which is confused by this.
1490 # We need to recreate these files for each test, as the compiler may
1491 # overwrite some of them when testing with obscure command lines.
1492 # This happens at least with the AIX C compiler.
1494 for i in 1 2 3 4 5 6; do
1495 echo '#include "conftst'$i'.h"' >> sub/conftest.c
1496 # Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
1497 # Solaris 10 /bin/sh.
1498 echo '/* dummy */' > sub/conftst$i.h
1500 echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
1502 # We check with '-c' and '-o' for the sake of the "dashmstdout"
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1505 # versions had trouble with output in subdirs.
1506 am__obj=sub/conftest.${OBJEXT-o}
1507 am__minus_obj="-o $am__obj"
1510 # This depmode causes a compiler race in universal mode.
1511 test "$am__universal" = false || continue
1514 # After this tag, mechanisms are not by side-effect, so they'll
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1516 if test "x$enable_dependency_tracking" = xyes; then
1522 msvc7 | msvc7msys | msvisualcpp | msvcmsys)
1523 # This compiler won't grok '-c -o', but also, the minuso test has
1524 # not run yet. These depmodes are late enough in the game, and
1525 # so weak that their functioning should not be impacted.
1526 am__obj=conftest.${OBJEXT-o}
1531 if depmode=$depmode \
1532 source=sub/conftest.c object=$am__obj \
1533 depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
1534 $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
1535 >/dev/null 2>conftest.err &&
1536 grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
1537 grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
1538 grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
1539 ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
1540 # icc doesn't choke on unknown options, it will just issue warnings
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1543 # When given -MP, icc 7.0 and 7.1 complain thusly:
1544 # icc: Command line warning: ignoring option '-M'; no argument required
1545 # The diagnosis changed in icc 8.0:
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1547 if (grep 'ignoring option' conftest.err ||
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1549 am_cv_$1_dependencies_compiler_type=$depmode
1558 am_cv_$1_dependencies_compiler_type=none
1561 AC_SUBST([$1DEPMODE], [depmode=$am_cv_$1_dependencies_compiler_type])
1562 AM_CONDITIONAL([am__fastdep$1], [
1563 test "x$enable_dependency_tracking" != xno \
1564 && test "$am_cv_$1_dependencies_compiler_type" = gcc3])
1570 # Choose a directory name for dependency files.
1571 # This macro is AC_REQUIREd in _AM_DEPENDENCIES.
1572 AC_DEFUN([AM_SET_DEPDIR],
1573 [AC_REQUIRE([AM_SET_LEADING_DOT])dnl
1574 AC_SUBST([DEPDIR], ["${am__leading_dot}deps"])dnl
1580 AC_DEFUN([AM_DEP_TRACK],
1581 [AC_ARG_ENABLE([dependency-tracking], [dnl
1583 [--enable-dependency-tracking],
1584 [do not reject slow dependency extractors])
1586 [--disable-dependency-tracking],
1587 [speeds up one-time build])])
1588 if test "x$enable_dependency_tracking" != xno; then
1589 am_depcomp="$ac_aux_dir/depcomp"
1593 AM_CONDITIONAL([AMDEP], [test "x$enable_dependency_tracking" != xno])
1594 AC_SUBST([AMDEPBACKSLASH])dnl
1595 _AM_SUBST_NOTMAKE([AMDEPBACKSLASH])dnl
1596 AC_SUBST([am__nodep])dnl
1597 _AM_SUBST_NOTMAKE([am__nodep])dnl
1600 # Generate code to set up dependency tracking. -*- Autoconf -*-
1602 # Copyright (C) 1999-2014 Free Software Foundation, Inc.
1604 # This file is free software; the Free Software Foundation
1605 # gives unlimited permission to copy and/or distribute it,
1606 # with or without modifications, as long as this notice is preserved.
1609 # _AM_OUTPUT_DEPENDENCY_COMMANDS
1610 # ------------------------------
1611 AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
1613 # Older Autoconf quotes --file arguments for eval, but not when files
1614 # are listed without --file. Let's play safe and only enable the eval
1615 # if we detect the quoting.
1616 case $CONFIG_FILES in
1617 *\'*) eval set x "$CONFIG_FILES" ;;
1618 *) set x $CONFIG_FILES ;;
1623 # Strip MF so we end up with the name of the file.
1624 mf=`echo "$mf" | sed -e 's/:.*$//'`
1625 # Check whether this is an Automake generated Makefile or not.
1626 # We used to match only the files named 'Makefile.in', but
1627 # some people rename them; so instead we look at the file content.
1628 # Grep'ing the first line is not enough: some people post-process
1629 # each Makefile.in and add a new line on top of each file to say so.
1630 # Grep'ing the whole file is not good either: AIX grep has a line
1631 # limit of 2048, but all sed's we know have understand at least 4000.
1632 if sed -n 's,^#.*generated by automake.*,X,p' "$mf" | grep X >/dev/null 2>&1; then
1633 dirpart=`AS_DIRNAME("$mf")`
1637 # Extract the definition of DEPDIR, am__include, and am__quote
1638 # from the Makefile without running 'make'.
1639 DEPDIR=`sed -n 's/^DEPDIR = //p' < "$mf"`
1640 test -z "$DEPDIR" && continue
1641 am__include=`sed -n 's/^am__include = //p' < "$mf"`
1642 test -z "$am__include" && continue
1643 am__quote=`sed -n 's/^am__quote = //p' < "$mf"`
1644 # Find all dependency output files, they are included files with
1645 # $(DEPDIR) in their names. We invoke sed twice because it is the
1646 # simplest approach to changing $(DEPDIR) to its actual value in the
1648 for file in `sed -n "
1649 s/^$am__include $am__quote\(.*(DEPDIR).*\)$am__quote"'$/\1/p' <"$mf" | \
1650 sed -e 's/\$(DEPDIR)/'"$DEPDIR"'/g'`; do
1651 # Make sure the directory exists.
1652 test -f "$dirpart/$file" && continue
1653 fdir=`AS_DIRNAME(["$file"])`
1654 AS_MKDIR_P([$dirpart/$fdir])
1655 # echo "creating $dirpart/$file"
1656 echo '# dummy' > "$dirpart/$file"
1660 ])# _AM_OUTPUT_DEPENDENCY_COMMANDS
1663 # AM_OUTPUT_DEPENDENCY_COMMANDS
1664 # -----------------------------
1665 # This macro should only be invoked once -- use via AC_REQUIRE.
1667 # This code is only required when automatic dependency tracking
1668 # is enabled. FIXME. This creates each '.P' file that we will
1669 # need in order to bootstrap the dependency handling code.
1670 AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
1671 [AC_CONFIG_COMMANDS([depfiles],
1672 [test x"$AMDEP_TRUE" != x"" || _AM_OUTPUT_DEPENDENCY_COMMANDS],
1673 [AMDEP_TRUE="$AMDEP_TRUE" ac_aux_dir="$ac_aux_dir"])
1676 # Do all the work for Automake. -*- Autoconf -*-
1678 # Copyright (C) 1996-2014 Free Software Foundation, Inc.
1680 # This file is free software; the Free Software Foundation
1681 # gives unlimited permission to copy and/or distribute it,
1682 # with or without modifications, as long as this notice is preserved.
1684 # This macro actually does too much. Some checks are only needed if
1685 # your package does certain things. But this isn't really a big deal.
1687 dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
1688 m4_define([AC_PROG_CC],
1689 m4_defn([AC_PROG_CC])
1693 # AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
1694 # AM_INIT_AUTOMAKE([OPTIONS])
1695 # -----------------------------------------------
1696 # The call with PACKAGE and VERSION arguments is the old style
1697 # call (pre autoconf-2.50), which is being phased out. PACKAGE
1698 # and VERSION should now be passed to AC_INIT and removed from
1699 # the call to AM_INIT_AUTOMAKE.
1700 # We support both call styles for the transition. After
1701 # the next Automake release, Autoconf can make the AC_INIT
1702 # arguments mandatory, and then we can depend on a new Autoconf
1703 # release and drop the old call support.
1704 AC_DEFUN([AM_INIT_AUTOMAKE],
1705 [AC_PREREQ([2.65])dnl
1706 dnl Autoconf wants to disallow AM_ names. We explicitly allow
1707 dnl the ones we care about.
1708 m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
1709 AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
1710 AC_REQUIRE([AC_PROG_INSTALL])dnl
1711 if test "`cd $srcdir && pwd`" != "`pwd`"; then
1712 # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
1713 # is not polluted with repeated "-I."
1714 AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
1715 # test to see if srcdir already configured
1716 if test -f $srcdir/config.status; then
1717 AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
1721 # test whether we have cygpath
1722 if test -z "$CYGPATH_W"; then
1723 if (cygpath --version) >/dev/null 2>/dev/null; then
1724 CYGPATH_W='cygpath -w'
1729 AC_SUBST([CYGPATH_W])
1731 # Define the identity of the package.
1732 dnl Distinguish between old-style and new-style calls.
1734 [AC_DIAGNOSE([obsolete],
1735 [$0: two- and three-arguments forms are deprecated.])
1736 m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
1737 AC_SUBST([PACKAGE], [$1])dnl
1738 AC_SUBST([VERSION], [$2])],
1739 [_AM_SET_OPTIONS([$1])dnl
1740 dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
1742 m4_ifdef([AC_PACKAGE_NAME], [ok]):m4_ifdef([AC_PACKAGE_VERSION], [ok]),
1744 [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
1745 AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
1746 AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
1748 _AM_IF_OPTION([no-define],,
1749 [AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
1750 AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
1752 # Some tools Automake needs.
1753 AC_REQUIRE([AM_SANITY_CHECK])dnl
1754 AC_REQUIRE([AC_ARG_PROGRAM])dnl
1755 AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
1756 AM_MISSING_PROG([AUTOCONF], [autoconf])
1757 AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
1758 AM_MISSING_PROG([AUTOHEADER], [autoheader])
1759 AM_MISSING_PROG([MAKEINFO], [makeinfo])
1760 AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
1761 AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
1762 AC_REQUIRE([AC_PROG_MKDIR_P])dnl
1763 # For better backward compatibility. To be removed once Automake 1.9.x
1764 # dies out for good. For more background, see:
1765 # <http://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
1766 # <http://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
1767 AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
1768 # We need awk for the "check" target (and possibly the TAP driver). The
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1770 AC_REQUIRE([AC_PROG_AWK])dnl
1771 AC_REQUIRE([AC_PROG_MAKE_SET])dnl
1772 AC_REQUIRE([AM_SET_LEADING_DOT])dnl
1773 _AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
1774 [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
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1776 _AM_IF_OPTION([no-dependencies],,
1777 [AC_PROVIDE_IFELSE([AC_PROG_CC],
1778 [_AM_DEPENDENCIES([CC])],
1779 [m4_define([AC_PROG_CC],
1780 m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
1781 AC_PROVIDE_IFELSE([AC_PROG_CXX],
1782 [_AM_DEPENDENCIES([CXX])],
1783 [m4_define([AC_PROG_CXX],
1784 m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
1785 AC_PROVIDE_IFELSE([AC_PROG_OBJC],
1786 [_AM_DEPENDENCIES([OBJC])],
1787 [m4_define([AC_PROG_OBJC],
1788 m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
1789 AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
1790 [_AM_DEPENDENCIES([OBJCXX])],
1791 [m4_define([AC_PROG_OBJCXX],
1792 m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
1794 AC_REQUIRE([AM_SILENT_RULES])dnl
1795 dnl The testsuite driver may need to know about EXEEXT, so add the
1796 dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen. This
1797 dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
1798 AC_CONFIG_COMMANDS_PRE(dnl
1799 [m4_provide_if([_AM_COMPILER_EXEEXT],
1800 [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
1802 # POSIX will say in a future version that running "rm -f" with no argument
1803 # is OK; and we want to be able to make that assumption in our Makefile
1804 # recipes. So use an aggressive probe to check that the usage we want is
1805 # actually supported "in the wild" to an acceptable degree.
1806 # See automake bug#10828.
1807 # To make any issue more visible, cause the running configure to be aborted
1808 # by default if the 'rm' program in use doesn't match our expectations; the
1809 # user can still override this though.
1810 if rm -f && rm -fr && rm -rf; then : OK; else
1814 Your 'rm' program seems unable to run without file operands specified
1815 on the command line, even when the '-f' option is present. This is contrary
1816 to the behaviour of most rm programs out there, and not conforming with
1817 the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
1819 Please tell bug-automake@gnu.org about your system, including the value
1820 of your $PATH and any error possibly output before this message. This
1821 can help us improve future automake versions.
1824 if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
1825 echo 'Configuration will proceed anyway, since you have set the' >&2
1826 echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
1830 Aborting the configuration process, to ensure you take notice of the issue.
1832 You can download and install GNU coreutils to get an 'rm' implementation
1833 that behaves properly: <http://www.gnu.org/software/coreutils/>.
1835 If you want to complete the configuration process using your problematic
1836 'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
1837 to "yes", and re-run configure.
1840 AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
1843 dnl The trailing newline in this macro's definition is deliberate, for
1844 dnl backward compatibility and to allow trailing 'dnl'-style comments
1845 dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
1848 dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion. Do not
1849 dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
1850 dnl mangled by Autoconf and run in a shell conditional statement.
1851 m4_define([_AC_COMPILER_EXEEXT],
1852 m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
1854 # When config.status generates a header, we must update the stamp-h file.
1855 # This file resides in the same directory as the config header
1856 # that is generated. The stamp files are numbered to have different names.
1858 # Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
1859 # loop where config.status creates the headers, so we can generate
1860 # our stamp files there.
1861 AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
1862 [# Compute $1's index in $config_headers.
1865 for _am_header in $config_headers :; do
1867 $_am_arg | $_am_arg:* )
1870 _am_stamp_count=`expr $_am_stamp_count + 1` ;;
1873 echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
1875 # Copyright (C) 2001-2014 Free Software Foundation, Inc.
1877 # This file is free software; the Free Software Foundation
1878 # gives unlimited permission to copy and/or distribute it,
1879 # with or without modifications, as long as this notice is preserved.
1881 # AM_PROG_INSTALL_SH
1882 # ------------------
1883 # Define $install_sh.
1884 AC_DEFUN([AM_PROG_INSTALL_SH],
1885 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
1886 if test x"${install_sh+set}" != xset; then
1889 install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
1891 install_sh="\${SHELL} $am_aux_dir/install-sh"
1894 AC_SUBST([install_sh])])
1896 # Copyright (C) 2003-2014 Free Software Foundation, Inc.
1898 # This file is free software; the Free Software Foundation
1899 # gives unlimited permission to copy and/or distribute it,
1900 # with or without modifications, as long as this notice is preserved.
1902 # Check whether the underlying file-system supports filenames
1903 # with a leading dot. For instance MS-DOS doesn't.
1904 AC_DEFUN([AM_SET_LEADING_DOT],
1905 [rm -rf .tst 2>/dev/null
1906 mkdir .tst 2>/dev/null
1907 if test -d .tst; then
1912 rmdir .tst 2>/dev/null
1913 AC_SUBST([am__leading_dot])])
1915 # Add --enable-maintainer-mode option to configure. -*- Autoconf -*-
1918 # Copyright (C) 1996-2014 Free Software Foundation, Inc.
1920 # This file is free software; the Free Software Foundation
1921 # gives unlimited permission to copy and/or distribute it,
1922 # with or without modifications, as long as this notice is preserved.
1924 # AM_MAINTAINER_MODE([DEFAULT-MODE])
1925 # ----------------------------------
1926 # Control maintainer-specific portions of Makefiles.
1927 # Default is to disable them, unless 'enable' is passed literally.
1928 # For symmetry, 'disable' may be passed as well. Anyway, the user
1929 # can override the default with the --enable/--disable switch.
1930 AC_DEFUN([AM_MAINTAINER_MODE],
1931 [m4_case(m4_default([$1], [disable]),
1932 [enable], [m4_define([am_maintainer_other], [disable])],
1933 [disable], [m4_define([am_maintainer_other], [enable])],
1934 [m4_define([am_maintainer_other], [enable])
1935 m4_warn([syntax], [unexpected argument to AM@&t@_MAINTAINER_MODE: $1])])
1936 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
1937 dnl maintainer-mode's default is 'disable' unless 'enable' is passed
1938 AC_ARG_ENABLE([maintainer-mode],
1939 [AS_HELP_STRING([--]am_maintainer_other[-maintainer-mode],
1940 am_maintainer_other[ make rules and dependencies not useful
1941 (and sometimes confusing) to the casual installer])],
1942 [USE_MAINTAINER_MODE=$enableval],
1943 [USE_MAINTAINER_MODE=]m4_if(am_maintainer_other, [enable], [no], [yes]))
1944 AC_MSG_RESULT([$USE_MAINTAINER_MODE])
1945 AM_CONDITIONAL([MAINTAINER_MODE], [test $USE_MAINTAINER_MODE = yes])
1946 MAINT=$MAINTAINER_MODE_TRUE
1947 AC_SUBST([MAINT])dnl
1951 # Check to see how 'make' treats includes. -*- Autoconf -*-
1953 # Copyright (C) 2001-2014 Free Software Foundation, Inc.
1955 # This file is free software; the Free Software Foundation
1956 # gives unlimited permission to copy and/or distribute it,
1957 # with or without modifications, as long as this notice is preserved.
1961 # Check to see how make treats includes.
1962 AC_DEFUN([AM_MAKE_INCLUDE],
1963 [am_make=${MAKE-make}
1964 cat > confinc << 'END'
1966 @echo this is the am__doit target
1969 # If we don't find an include directive, just comment out the code.
1970 AC_MSG_CHECKING([for style of include used by $am_make])
1974 # First try GNU make style include.
1975 echo "include confinc" > confmf
1976 # Ignore all kinds of additional output from 'make'.
1977 case `$am_make -s -f confmf 2> /dev/null` in #(
1978 *the\ am__doit\ target*)
1984 # Now try BSD make style include.
1985 if test "$am__include" = "#"; then
1986 echo '.include "confinc"' > confmf
1987 case `$am_make -s -f confmf 2> /dev/null` in #(
1988 *the\ am__doit\ target*)
1989 am__include=.include
1995 AC_SUBST([am__include])
1996 AC_SUBST([am__quote])
1997 AC_MSG_RESULT([$_am_result])
1998 rm -f confinc confmf
2001 # Fake the existence of programs that GNU maintainers use. -*- Autoconf -*-
2003 # Copyright (C) 1997-2014 Free Software Foundation, Inc.
2005 # This file is free software; the Free Software Foundation
2006 # gives unlimited permission to copy and/or distribute it,
2007 # with or without modifications, as long as this notice is preserved.
2009 # AM_MISSING_PROG(NAME, PROGRAM)
2010 # ------------------------------
2011 AC_DEFUN([AM_MISSING_PROG],
2012 [AC_REQUIRE([AM_MISSING_HAS_RUN])
2013 $1=${$1-"${am_missing_run}$2"}
2016 # AM_MISSING_HAS_RUN
2017 # ------------------
2018 # Define MISSING if not defined so far and test if it is modern enough.
2019 # If it is, set am_missing_run to use it, otherwise, to nothing.
2020 AC_DEFUN([AM_MISSING_HAS_RUN],
2021 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
2022 AC_REQUIRE_AUX_FILE([missing])dnl
2023 if test x"${MISSING+set}" != xset; then
2026 MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
2028 MISSING="\${SHELL} $am_aux_dir/missing" ;;
2031 # Use eval to expand $SHELL
2032 if eval "$MISSING --is-lightweight"; then
2033 am_missing_run="$MISSING "
2036 AC_MSG_WARN(['missing' script is too old or missing])
2040 # Helper functions for option handling. -*- Autoconf -*-
2042 # Copyright (C) 2001-2014 Free Software Foundation, Inc.
2044 # This file is free software; the Free Software Foundation
2045 # gives unlimited permission to copy and/or distribute it,
2046 # with or without modifications, as long as this notice is preserved.
2048 # _AM_MANGLE_OPTION(NAME)
2049 # -----------------------
2050 AC_DEFUN([_AM_MANGLE_OPTION],
2051 [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
2053 # _AM_SET_OPTION(NAME)
2054 # --------------------
2055 # Set option NAME. Presently that only means defining a flag for this option.
2056 AC_DEFUN([_AM_SET_OPTION],
2057 [m4_define(_AM_MANGLE_OPTION([$1]), [1])])
2059 # _AM_SET_OPTIONS(OPTIONS)
2060 # ------------------------
2061 # OPTIONS is a space-separated list of Automake options.
2062 AC_DEFUN([_AM_SET_OPTIONS],
2063 [m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
2065 # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
2066 # -------------------------------------------
2067 # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
2068 AC_DEFUN([_AM_IF_OPTION],
2069 [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
2071 # Copyright (C) 1999-2014 Free Software Foundation, Inc.
2073 # This file is free software; the Free Software Foundation
2074 # gives unlimited permission to copy and/or distribute it,
2075 # with or without modifications, as long as this notice is preserved.
2079 # Like AC_PROG_CC_C_O, but changed for automake. We rewrite AC_PROG_CC
2080 # to automatically call this.
2081 AC_DEFUN([_AM_PROG_CC_C_O],
2082 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
2083 AC_REQUIRE_AUX_FILE([compile])dnl
2084 AC_LANG_PUSH([C])dnl
2086 [whether $CC understands -c and -o together],
2087 [am_cv_prog_cc_c_o],
2088 [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
2089 # Make sure it works both with $CC and with simple cc.
2090 # Following AC_PROG_CC_C_O, we do the test twice because some
2091 # compilers refuse to overwrite an existing .o file with -o,
2092 # though they will create one.
2093 am_cv_prog_cc_c_o=yes
2095 if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
2096 && test -f conftest2.$ac_objext; then
2099 am_cv_prog_cc_c_o=no
2103 rm -f core conftest*
2105 if test "$am_cv_prog_cc_c_o" != yes; then
2106 # Losing compiler, so override with the script.
2107 # FIXME: It is wrong to rewrite CC.
2108 # But if we don't then we get into trouble of one sort or another.
2109 # A longer-term fix would be to have automake use am__CC in this case,
2110 # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
2111 CC="$am_aux_dir/compile $CC"
2115 # For backward compatibility.
2116 AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
2118 # Copyright (C) 2001-2014 Free Software Foundation, Inc.
2120 # This file is free software; the Free Software Foundation
2121 # gives unlimited permission to copy and/or distribute it,
2122 # with or without modifications, as long as this notice is preserved.
2124 # AM_RUN_LOG(COMMAND)
2125 # -------------------
2126 # Run COMMAND, save the exit status in ac_status, and log it.
2127 # (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
2128 AC_DEFUN([AM_RUN_LOG],
2129 [{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
2130 ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
2132 echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
2133 (exit $ac_status); }])
2135 # Check to make sure that the build environment is sane. -*- Autoconf -*-
2137 # Copyright (C) 1996-2014 Free Software Foundation, Inc.
2139 # This file is free software; the Free Software Foundation
2140 # gives unlimited permission to copy and/or distribute it,
2141 # with or without modifications, as long as this notice is preserved.
2145 AC_DEFUN([AM_SANITY_CHECK],
2146 [AC_MSG_CHECKING([whether build environment is sane])
2147 # Reject unsafe characters in $srcdir or the absolute working directory
2148 # name. Accept space and tab only in the latter.
2152 *[[\\\"\#\$\&\'\`$am_lf]]*)
2153 AC_MSG_ERROR([unsafe absolute working directory name]);;
2156 *[[\\\"\#\$\&\'\`$am_lf\ \ ]]*)
2157 AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
2160 # Do 'set' in a subshell so we don't clobber the current shell's
2161 # arguments. Must try -L first in case configure is actually a
2162 # symlink; some systems play weird games with the mod time of symlinks
2163 # (eg FreeBSD returns the mod time of the symlink's containing
2167 for am_try in 1 2; do
2168 echo "timestamp, slept: $am_has_slept" > conftest.file
2169 set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
2170 if test "$[*]" = "X"; then
2172 set X `ls -t "$srcdir/configure" conftest.file`
2174 if test "$[*]" != "X $srcdir/configure conftest.file" \
2175 && test "$[*]" != "X conftest.file $srcdir/configure"; then
2177 # If neither matched, then we have a broken ls. This can happen
2178 # if, for instance, CONFIG_SHELL is bash and it inherits a
2179 # broken ls alias from the environment. This has actually
2180 # happened. Such a system could not be considered "sane".
2181 AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken
2182 alias in your environment])
2184 if test "$[2]" = conftest.file || test $am_try -eq 2; then
2191 test "$[2]" = conftest.file
2197 AC_MSG_ERROR([newly created file is older than distributed files!
2198 Check your system clock])
2200 AC_MSG_RESULT([yes])
2201 # If we didn't sleep, we still need to ensure time stamps of config.status and
2202 # generated files are strictly newer.
2204 if grep 'slept: no' conftest.file >/dev/null 2>&1; then
2208 AC_CONFIG_COMMANDS_PRE(
2209 [AC_MSG_CHECKING([that generated files are newer than configure])
2210 if test -n "$am_sleep_pid"; then
2211 # Hide warnings about reused PIDs.
2212 wait $am_sleep_pid 2>/dev/null
2214 AC_MSG_RESULT([done])])
2218 # Copyright (C) 2009-2014 Free Software Foundation, Inc.
2220 # This file is free software; the Free Software Foundation
2221 # gives unlimited permission to copy and/or distribute it,
2222 # with or without modifications, as long as this notice is preserved.
2224 # AM_SILENT_RULES([DEFAULT])
2225 # --------------------------
2226 # Enable less verbose build rules; with the default set to DEFAULT
2227 # ("yes" being less verbose, "no" or empty being verbose).
2228 AC_DEFUN([AM_SILENT_RULES],
2229 [AC_ARG_ENABLE([silent-rules], [dnl
2231 [--enable-silent-rules],
2232 [less verbose build output (undo: "make V=1")])
2234 [--disable-silent-rules],
2235 [verbose build output (undo: "make V=0")])dnl
2237 case $enable_silent_rules in @%:@ (((
2238 yes) AM_DEFAULT_VERBOSITY=0;;
2239 no) AM_DEFAULT_VERBOSITY=1;;
2240 *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
2243 dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
2244 dnl do not support nested variable expansions.
2245 dnl See automake bug#9928 and bug#10237.
2246 am_make=${MAKE-make}
2247 AC_CACHE_CHECK([whether $am_make supports nested variables],
2248 [am_cv_make_support_nested_variables],
2249 [if AS_ECHO([['TRUE=$(BAR$(V))
2255 .PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
2256 am_cv_make_support_nested_variables=yes
2258 am_cv_make_support_nested_variables=no
2260 if test $am_cv_make_support_nested_variables = yes; then
2261 dnl Using '$V' instead of '$(V)' breaks IRIX make.
2263 AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
2265 AM_V=$AM_DEFAULT_VERBOSITY
2266 AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
2269 AM_SUBST_NOTMAKE([AM_V])dnl
2270 AC_SUBST([AM_DEFAULT_V])dnl
2271 AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
2272 AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
2274 AC_SUBST([AM_BACKSLASH])dnl
2275 _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
2278 # Copyright (C) 2001-2014 Free Software Foundation, Inc.
2280 # This file is free software; the Free Software Foundation
2281 # gives unlimited permission to copy and/or distribute it,
2282 # with or without modifications, as long as this notice is preserved.
2284 # AM_PROG_INSTALL_STRIP
2285 # ---------------------
2286 # One issue with vendor 'install' (even GNU) is that you can't
2287 # specify the program used to strip binaries. This is especially
2288 # annoying in cross-compiling environments, where the build's strip
2289 # is unlikely to handle the host's binaries.
2290 # Fortunately install-sh will honor a STRIPPROG variable, so we
2291 # always use install-sh in "make install-strip", and initialize
2292 # STRIPPROG with the value of the STRIP variable (set by the user).
2293 AC_DEFUN([AM_PROG_INSTALL_STRIP],
2294 [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
2295 # Installed binaries are usually stripped using 'strip' when the user
2296 # run "make install-strip". However 'strip' might not be the right
2297 # tool to use in cross-compilation environments, therefore Automake
2298 # will honor the 'STRIP' environment variable to overrule this program.
2299 dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
2300 if test "$cross_compiling" != no; then
2301 AC_CHECK_TOOL([STRIP], [strip], :)
2303 INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
2304 AC_SUBST([INSTALL_STRIP_PROGRAM])])
2306 # Copyright (C) 2006-2014 Free Software Foundation, Inc.
2308 # This file is free software; the Free Software Foundation
2309 # gives unlimited permission to copy and/or distribute it,
2310 # with or without modifications, as long as this notice is preserved.
2312 # _AM_SUBST_NOTMAKE(VARIABLE)
2313 # ---------------------------
2314 # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
2315 # This macro is traced by Automake.
2316 AC_DEFUN([_AM_SUBST_NOTMAKE])
2318 # AM_SUBST_NOTMAKE(VARIABLE)
2319 # --------------------------
2320 # Public sister of _AM_SUBST_NOTMAKE.
2321 AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
2323 # Check how to create a tarball. -*- Autoconf -*-
2325 # Copyright (C) 2004-2014 Free Software Foundation, Inc.
2327 # This file is free software; the Free Software Foundation
2328 # gives unlimited permission to copy and/or distribute it,
2329 # with or without modifications, as long as this notice is preserved.
2331 # _AM_PROG_TAR(FORMAT)
2332 # --------------------
2333 # Check how to create a tarball in format FORMAT.
2334 # FORMAT should be one of 'v7', 'ustar', or 'pax'.
2336 # Substitute a variable $(am__tar) that is a command
2337 # writing to stdout a FORMAT-tarball containing the directory
2339 # tardir=directory && $(am__tar) > result.tar
2341 # Substitute a variable $(am__untar) that extract such
2342 # a tarball read from stdin.
2343 # $(am__untar) < result.tar
2345 AC_DEFUN([_AM_PROG_TAR],
2346 [# Always define AMTAR for backward compatibility. Yes, it's still used
2347 # in the wild :-( We should find a proper way to deprecate it ...
2348 AC_SUBST([AMTAR], ['$${TAR-tar}'])
2350 # We'll loop over all known methods to create a tar archive until one works.
2351 _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
2354 [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
2358 [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
2359 # There is notably a 21 bits limit for the UID and the GID. In fact,
2360 # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
2362 am_max_uid=2097151 # 2^21 - 1
2363 am_max_gid=$am_max_uid
2364 # The $UID and $GID variables are not portable, so we need to resort
2365 # to the POSIX-mandated id(1) utility. Errors in the 'id' calls
2366 # below are definitely unexpected, so allow the users to see them
2367 # (that is, avoid stderr redirection).
2368 am_uid=`id -u || echo unknown`
2369 am_gid=`id -g || echo unknown`
2370 AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
2371 if test $am_uid -le $am_max_uid; then
2372 AC_MSG_RESULT([yes])
2377 AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
2378 if test $am_gid -le $am_max_gid; then
2379 AC_MSG_RESULT([yes])
2388 [m4_fatal([Unknown tar format])])
2390 AC_MSG_CHECKING([how to create a $1 tar archive])
2392 # Go ahead even if we have the value already cached. We do so because we
2393 # need to set the values for the 'am__tar' and 'am__untar' variables.
2394 _am_tools=${am_cv_prog_tar_$1-$_am_tools}
2396 for _am_tool in $_am_tools; do
2399 for _am_tar in tar gnutar gtar; do
2400 AM_RUN_LOG([$_am_tar --version]) && break
2402 am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
2403 am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
2404 am__untar="$_am_tar -xf -"
2407 # Must skip GNU tar: if it does not support --format= it doesn't create
2408 # ustar tarball either.
2409 (tar --version) >/dev/null 2>&1 && continue
2410 am__tar='tar chf - "$$tardir"'
2411 am__tar_='tar chf - "$tardir"'
2412 am__untar='tar xf -'
2415 am__tar='pax -L -x $1 -w "$$tardir"'
2416 am__tar_='pax -L -x $1 -w "$tardir"'
2420 am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
2421 am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
2422 am__untar='cpio -i -H $1 -d'
2431 # If the value was cached, stop now. We just wanted to have am__tar
2432 # and am__untar set.
2433 test -n "${am_cv_prog_tar_$1}" && break
2435 # tar/untar a dummy directory, and stop if the command works.
2438 echo GrepMe > conftest.dir/file
2439 AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
2441 if test -s conftest.tar; then
2442 AM_RUN_LOG([$am__untar <conftest.tar])
2443 AM_RUN_LOG([cat conftest.dir/file])
2444 grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
2449 AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
2450 AC_MSG_RESULT([$am_cv_prog_tar_$1])])
2453 AC_SUBST([am__untar])
2456 m4_include([build/ax_boost_base.m4])
2457 m4_include([build/ax_boost_system.m4])
2458 m4_include([build/ax_boost_timer.m4])
2459 m4_include([build/libtool.m4])
2460 m4_include([build/ltoptions.m4])
2461 m4_include([build/ltsugar.m4])
2462 m4_include([build/ltversion.m4])
2463 m4_include([build/lt~obsolete.m4])