1# generated automatically by aclocal 1.15 -*- Autoconf -*- 2 3# Copyright (C) 1996-2014 Free Software Foundation, Inc. 4 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. 8 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 12# PARTICULAR PURPOSE. 13 14m4_ifndef([AC_CONFIG_MACRO_DIRS], [m4_defun([_AM_CONFIG_MACRO_DIRS], [])m4_defun([AC_CONFIG_MACRO_DIRS], [_AM_CONFIG_MACRO_DIRS($@)])]) 15m4_ifndef([AC_AUTOCONF_VERSION], 16 [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl 17m4_if(m4_defn([AC_AUTOCONF_VERSION]), [2.69],, 18[m4_warning([this file was generated for autoconf 2.69. 19You have another version of autoconf. It may work, but is not guaranteed to. 20If you have problems, you may need to regenerate the build system entirely. 21To do so, use the procedure documented by the package, typically 'autoreconf'.])]) 22 23dnl pkg.m4 - Macros to locate and utilise pkg-config. -*- Autoconf -*- 24dnl serial 11 (pkg-config-0.29.1) 25dnl 26dnl Copyright © 2004 Scott James Remnant <scott@netsplit.com>. 27dnl Copyright © 2012-2015 Dan Nicholson <dbn.lists@gmail.com> 28dnl 29dnl This program is free software; you can redistribute it and/or modify 30dnl it under the terms of the GNU General Public License as published by 31dnl the Free Software Foundation; either version 2 of the License, or 32dnl (at your option) any later version. 33dnl 34dnl This program is distributed in the hope that it will be useful, but 35dnl WITHOUT ANY WARRANTY; without even the implied warranty of 36dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 37dnl General Public License for more details. 38dnl 39dnl You should have received a copy of the GNU General Public License 40dnl along with this program; if not, write to the Free Software 41dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 42dnl 02111-1307, USA. 43dnl 44dnl As a special exception to the GNU General Public License, if you 45dnl distribute this file as part of a program that contains a 46dnl configuration script generated by Autoconf, you may include it under 47dnl the same distribution terms that you use for the rest of that 48dnl program. 49 50dnl PKG_PREREQ(MIN-VERSION) 51dnl ----------------------- 52dnl Since: 0.29 53dnl 54dnl Verify that the version of the pkg-config macros are at least 55dnl MIN-VERSION. Unlike PKG_PROG_PKG_CONFIG, which checks the user's 56dnl installed version of pkg-config, this checks the developer's version 57dnl of pkg.m4 when generating configure. 58dnl 59dnl To ensure that this macro is defined, also add: 60dnl m4_ifndef([PKG_PREREQ], 61dnl [m4_fatal([must install pkg-config 0.29 or later before running autoconf/autogen])]) 62dnl 63dnl See the "Since" comment for each macro you use to see what version 64dnl of the macros you require. 65m4_defun([PKG_PREREQ], 66[m4_define([PKG_MACROS_VERSION], [0.29.1]) 67m4_if(m4_version_compare(PKG_MACROS_VERSION, [$1]), -1, 68 [m4_fatal([pkg.m4 version $1 or higher is required but ]PKG_MACROS_VERSION[ found])]) 69])dnl PKG_PREREQ 70 71dnl PKG_PROG_PKG_CONFIG([MIN-VERSION]) 72dnl ---------------------------------- 73dnl Since: 0.16 74dnl 75dnl Search for the pkg-config tool and set the PKG_CONFIG variable to 76dnl first found in the path. Checks that the version of pkg-config found 77dnl is at least MIN-VERSION. If MIN-VERSION is not specified, 0.9.0 is 78dnl used since that's the first version where most current features of 79dnl pkg-config existed. 80AC_DEFUN([PKG_PROG_PKG_CONFIG], 81[m4_pattern_forbid([^_?PKG_[A-Z_]+$]) 82m4_pattern_allow([^PKG_CONFIG(_(PATH|LIBDIR|SYSROOT_DIR|ALLOW_SYSTEM_(CFLAGS|LIBS)))?$]) 83m4_pattern_allow([^PKG_CONFIG_(DISABLE_UNINSTALLED|TOP_BUILD_DIR|DEBUG_SPEW)$]) 84AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility]) 85AC_ARG_VAR([PKG_CONFIG_PATH], [directories to add to pkg-config's search path]) 86AC_ARG_VAR([PKG_CONFIG_LIBDIR], [path overriding pkg-config's built-in search path]) 87 88if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then 89 AC_PATH_TOOL([PKG_CONFIG], [pkg-config]) 90fi 91if test -n "$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 $_pkg_min_version; then 95 AC_MSG_RESULT([yes]) 96 else 97 AC_MSG_RESULT([no]) 98 PKG_CONFIG="" 99 fi 100fi[]dnl 101])dnl PKG_PROG_PKG_CONFIG 102 103dnl PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) 104dnl ------------------------------------------------------------------- 105dnl Since: 0.18 106dnl 107dnl Check to see whether a particular set of modules exists. Similar to 108dnl PKG_CHECK_MODULES(), but does not set variables or print errors. 109dnl 110dnl Please remember that m4 expands AC_REQUIRE([PKG_PROG_PKG_CONFIG]) 111dnl only at the first occurence in configure.ac, so if the first place 112dnl it's called might be skipped (such as if it is within an "if", you 113dnl have to call PKG_CHECK_EXISTS manually 114AC_DEFUN([PKG_CHECK_EXISTS], 115[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl 116if test -n "$PKG_CONFIG" && \ 117 AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then 118 m4_default([$2], [:]) 119m4_ifvaln([$3], [else 120 $3])dnl 121fi]) 122 123dnl _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES]) 124dnl --------------------------------------------- 125dnl Internal wrapper calling pkg-config via PKG_CONFIG and setting 126dnl pkg_failed based on the result. 127m4_define([_PKG_CONFIG], 128[if test -n "$$1"; then 129 pkg_cv_[]$1="$$1" 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 ], 134 [pkg_failed=yes]) 135 else 136 pkg_failed=untried 137fi[]dnl 138])dnl _PKG_CONFIG 139 140dnl _PKG_SHORT_ERRORS_SUPPORTED 141dnl --------------------------- 142dnl Internal check to see if pkg-config supports short errors. 143AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED], 144[AC_REQUIRE([PKG_PROG_PKG_CONFIG]) 145if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then 146 _pkg_short_errors_supported=yes 147else 148 _pkg_short_errors_supported=no 149fi[]dnl 150])dnl _PKG_SHORT_ERRORS_SUPPORTED 151 152 153dnl PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND], 154dnl [ACTION-IF-NOT-FOUND]) 155dnl -------------------------------------------------------------- 156dnl Since: 0.4.0 157dnl 158dnl Note that if there is a possibility the first call to 159dnl PKG_CHECK_MODULES might not happen, you should be sure to include an 160dnl explicit call to PKG_PROG_PKG_CONFIG in your configure.ac 161AC_DEFUN([PKG_CHECK_MODULES], 162[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl 163AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl 164AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl 165 166pkg_failed=no 167AC_MSG_CHECKING([for $1]) 168 169_PKG_CONFIG([$1][_CFLAGS], [cflags], [$2]) 170_PKG_CONFIG([$1][_LIBS], [libs], [$2]) 171 172m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS 173and $1[]_LIBS to avoid the need to call pkg-config. 174See the pkg-config man page for more details.]) 175 176if test $pkg_failed = yes; then 177 AC_MSG_RESULT([no]) 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` 181 else 182 $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "$2" 2>&1` 183 fi 184 # Put the nasty error message in config.log where it belongs 185 echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD 186 187 m4_default([$4], [AC_MSG_ERROR( 188[Package requirements ($2) were not met: 189 190$$1_PKG_ERRORS 191 192Consider adjusting the PKG_CONFIG_PATH environment variable if you 193installed software in a non-standard prefix. 194 195_PKG_TEXT])[]dnl 196 ]) 197elif test $pkg_failed = untried; then 198 AC_MSG_RESULT([no]) 199 m4_default([$4], [AC_MSG_FAILURE( 200[The pkg-config script could not be found or is too old. Make sure it 201is in your PATH or set the PKG_CONFIG environment variable to the full 202path to pkg-config. 203 204_PKG_TEXT 205 206To get pkg-config, see <http://pkg-config.freedesktop.org/>.])[]dnl 207 ]) 208else 209 $1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS 210 $1[]_LIBS=$pkg_cv_[]$1[]_LIBS 211 AC_MSG_RESULT([yes]) 212 $3 213fi[]dnl 214])dnl PKG_CHECK_MODULES 215 216 217dnl PKG_CHECK_MODULES_STATIC(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND], 218dnl [ACTION-IF-NOT-FOUND]) 219dnl --------------------------------------------------------------------- 220dnl Since: 0.29 221dnl 222dnl Checks for existence of MODULES and gathers its build flags with 223dnl static libraries enabled. Sets VARIABLE-PREFIX_CFLAGS from --cflags 224dnl and VARIABLE-PREFIX_LIBS from --libs. 225dnl 226dnl Note that if there is a possibility the first call to 227dnl PKG_CHECK_MODULES_STATIC might not happen, you should be sure to 228dnl include an explicit call to PKG_PROG_PKG_CONFIG in your 229dnl configure.ac. 230AC_DEFUN([PKG_CHECK_MODULES_STATIC], 231[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl 232_save_PKG_CONFIG=$PKG_CONFIG 233PKG_CONFIG="$PKG_CONFIG --static" 234PKG_CHECK_MODULES($@) 235PKG_CONFIG=$_save_PKG_CONFIG[]dnl 236])dnl PKG_CHECK_MODULES_STATIC 237 238 239dnl PKG_INSTALLDIR([DIRECTORY]) 240dnl ------------------------- 241dnl Since: 0.27 242dnl 243dnl Substitutes the variable pkgconfigdir as the location where a module 244dnl should install pkg-config .pc files. By default the directory is 245dnl $libdir/pkgconfig, but the default can be changed by passing 246dnl DIRECTORY. The user can override through the --with-pkgconfigdir 247dnl parameter. 248AC_DEFUN([PKG_INSTALLDIR], 249[m4_pushdef([pkg_default], [m4_default([$1], ['${libdir}/pkgconfig'])]) 250m4_pushdef([pkg_description], 251 [pkg-config installation directory @<:@]pkg_default[@:>@]) 252AC_ARG_WITH([pkgconfigdir], 253 [AS_HELP_STRING([--with-pkgconfigdir], pkg_description)],, 254 [with_pkgconfigdir=]pkg_default) 255AC_SUBST([pkgconfigdir], [$with_pkgconfigdir]) 256m4_popdef([pkg_default]) 257m4_popdef([pkg_description]) 258])dnl PKG_INSTALLDIR 259 260 261dnl PKG_NOARCH_INSTALLDIR([DIRECTORY]) 262dnl -------------------------------- 263dnl Since: 0.27 264dnl 265dnl Substitutes the variable noarch_pkgconfigdir as the location where a 266dnl module should install arch-independent pkg-config .pc files. By 267dnl default the directory is $datadir/pkgconfig, but the default can be 268dnl changed by passing DIRECTORY. The user can override through the 269dnl --with-noarch-pkgconfigdir parameter. 270AC_DEFUN([PKG_NOARCH_INSTALLDIR], 271[m4_pushdef([pkg_default], [m4_default([$1], ['${datadir}/pkgconfig'])]) 272m4_pushdef([pkg_description], 273 [pkg-config arch-independent installation directory @<:@]pkg_default[@:>@]) 274AC_ARG_WITH([noarch-pkgconfigdir], 275 [AS_HELP_STRING([--with-noarch-pkgconfigdir], pkg_description)],, 276 [with_noarch_pkgconfigdir=]pkg_default) 277AC_SUBST([noarch_pkgconfigdir], [$with_noarch_pkgconfigdir]) 278m4_popdef([pkg_default]) 279m4_popdef([pkg_description]) 280])dnl PKG_NOARCH_INSTALLDIR 281 282 283dnl PKG_CHECK_VAR(VARIABLE, MODULE, CONFIG-VARIABLE, 284dnl [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) 285dnl ------------------------------------------- 286dnl Since: 0.28 287dnl 288dnl Retrieves the value of the pkg-config variable for the given module. 289AC_DEFUN([PKG_CHECK_VAR], 290[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl 291AC_ARG_VAR([$1], [value of $3 for $2, overriding pkg-config])dnl 292 293_PKG_CONFIG([$1], [variable="][$3]["], [$2]) 294AS_VAR_COPY([$1], [pkg_cv_][$1]) 295 296AS_VAR_IF([$1], [""], [$5], [$4])dnl 297])dnl PKG_CHECK_VAR 298 299# =========================================================================== 300# http://www.gnu.org/software/autoconf-archive/ax_cxx_compile_stdcxx.html 301# =========================================================================== 302# 303# SYNOPSIS 304# 305# MM_AX_CXX_COMPILE_STDCXX(VERSION, [ext|noext], [mandatory|optional]) 306# 307# DESCRIPTION 308# 309# Check for baseline language coverage in the compiler for the specified 310# version of the C++ standard. If necessary, add switches to CXXFLAGS to 311# enable support. VERSION may be '11' (for the C++11 standard) or '14' 312# (for the C++14 standard). 313# 314# The second argument, if specified, indicates whether you insist on an 315# extended mode (e.g. -std=gnu++11) or a strict conformance mode (e.g. 316# -std=c++11). If neither is specified, you get whatever works, with 317# preference for an extended mode. 318# 319# The third argument, if specified 'mandatory' or if left unspecified, 320# indicates that baseline support for the specified C++ standard is 321# required and that the macro should error out if no mode with that 322# support is found. If specified 'optional', then configuration proceeds 323# regardless, after defining HAVE_CXX${VERSION} if and only if a 324# supporting mode is found. 325# 326# LICENSE 327# 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> 334# 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 338# warranty. 339 340# Copied from ax_cxx_compile_stdcxx.m4 and added MM_ prefix to avoid 341# possible conflict with AX_CXX_COMPILE_STDCXX in other modules. 342 343#serial 1 344 345dnl This macro is based on the code from the MM_AX_CXX_COMPILE_STDCXX_11 macro 346dnl (serial version number 13). 347 348AC_DEFUN([MM_AX_CXX_COMPILE_STDCXX], [dnl 349 m4_if([$1], [11], [], 350 [$1], [14], [], 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 353 m4_if([$2], [], [], 354 [$2], [ext], [], 355 [$2], [noext], [], 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 362 ac_success=no 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 369 ac_success=yes 370 fi 371 372 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, 377 $cachevar, 378 [ac_save_CXXFLAGS="$CXXFLAGS" 379 CXXFLAGS="$CXXFLAGS $switch" 380 AC_COMPILE_IFELSE([AC_LANG_SOURCE([_MM_AX_CXX_COMPILE_STDCXX_testbody_$1])], 381 [eval $cachevar=yes], 382 [eval $cachevar=no]) 383 CXXFLAGS="$ac_save_CXXFLAGS"]) 384 if eval test x\$$cachevar = xyes; then 385 CXXFLAGS="$CXXFLAGS $switch" 386 ac_success=yes 387 break 388 fi 389 done 390 fi]) 391 392 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, 400 $cachevar, 401 [ac_save_CXXFLAGS="$CXXFLAGS" 402 CXXFLAGS="$CXXFLAGS $switch" 403 AC_COMPILE_IFELSE([AC_LANG_SOURCE([_MM_AX_CXX_COMPILE_STDCXX_testbody_$1])], 404 [eval $cachevar=yes], 405 [eval $cachevar=no]) 406 CXXFLAGS="$ac_save_CXXFLAGS"]) 407 if eval test x\$$cachevar = xyes; then 408 CXXFLAGS="$CXXFLAGS $switch" 409 ac_success=yes 410 break 411 fi 412 done 413 fi]) 414 AC_LANG_POP([C++]) 415 if test x$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++$1 language features is required.]) 418 fi 419 else 420 if test x$ac_success = xno; then 421 HAVE_CXX$1=0 422 AC_MSG_NOTICE([No compiler with C++$1 support was found]) 423 else 424 HAVE_CXX$1=1 425 AC_DEFINE(HAVE_CXX$1,1, 426 [define if the compiler supports basic C++$1 syntax]) 427 fi 428 429 AC_SUBST(HAVE_CXX$1) 430 fi 431]) 432 433 434dnl Test body for checking C++11 support 435 436m4_define([_MM_AX_CXX_COMPILE_STDCXX_testbody_11], 437 _MM_AX_CXX_COMPILE_STDCXX_testbody_new_in_11 438) 439 440 441dnl Test body for checking C++14 support 442 443m4_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_14 446) 447 448 449dnl Tests for new features in C++11 450 451m4_define([_MM_AX_CXX_COMPILE_STDCXX_testbody_new_in_11], [[ 452 453// If the compiler admits that it is not ready for C++11, why torture it? 454// Hopefully, this will speed up the test. 455 456#ifndef __cplusplus 457 458#error "This is not a C++ compiler" 459 460#elif __cplusplus < 201103L 461 462#error "This is not a C++11 compiler" 463 464#else 465 466namespace cxx11 467{ 468 469 namespace test_static_assert 470 { 471 472 template <typename T> 473 struct check 474 { 475 static_assert(sizeof(int) <= sizeof(T), "not big enough"); 476 }; 477 478 } 479 480 namespace test_final_override 481 { 482 483 struct Base 484 { 485 virtual void f() {} 486 }; 487 488 struct Derived : public Base 489 { 490 virtual void f() override {} 491 }; 492 493 } 494 495 namespace test_double_right_angle_brackets 496 { 497 498 template < typename T > 499 struct check {}; 500 501 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; 505 506 } 507 508 namespace test_decltype 509 { 510 511 int 512 f() 513 { 514 int a = 1; 515 decltype(a) b = 2; 516 return a + b; 517 } 518 519 } 520 521 namespace test_type_deduction 522 { 523 524 template < typename T1, typename T2 > 525 struct is_same 526 { 527 static const bool value = false; 528 }; 529 530 template < typename T > 531 struct is_same<T, T> 532 { 533 static const bool value = true; 534 }; 535 536 template < typename T1, typename T2 > 537 auto 538 add(T1 a1, T2 a2) -> decltype(a1 + a2) 539 { 540 return a1 + a2; 541 } 542 543 int 544 test(const int c, volatile int v) 545 { 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, ""); 549 auto ac = c; 550 auto av = v; 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); 559 } 560 561 } 562 563 namespace test_noexcept 564 { 565 566 int f() { return 0; } 567 int g() noexcept { return 0; } 568 569 static_assert(noexcept(f()) == false, ""); 570 static_assert(noexcept(g()) == true, ""); 571 572 } 573 574 namespace test_constexpr 575 { 576 577 template < typename CharT > 578 unsigned long constexpr 579 strlen_c_r(const CharT *const s, const unsigned long acc) noexcept 580 { 581 return *s ? strlen_c_r(s + 1, acc + 1) : acc; 582 } 583 584 template < typename CharT > 585 unsigned long constexpr 586 strlen_c(const CharT *const s) noexcept 587 { 588 return strlen_c_r(s, 0UL); 589 } 590 591 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, ""); 595 596 } 597 598 namespace test_rvalue_references 599 { 600 601 template < int N > 602 struct answer 603 { 604 static constexpr int value = N; 605 }; 606 607 answer<1> f(int&) { return answer<1>(); } 608 answer<2> f(const int&) { return answer<2>(); } 609 answer<3> f(int&&) { return answer<3>(); } 610 611 void 612 test() 613 { 614 int i = 0; 615 const int c = 0; 616 static_assert(decltype(f(i))::value == 1, ""); 617 static_assert(decltype(f(c))::value == 2, ""); 618 static_assert(decltype(f(0))::value == 3, ""); 619 } 620 621 } 622 623 namespace test_uniform_initialization 624 { 625 626 struct test 627 { 628 static const int zero {}; 629 static const int one {1}; 630 }; 631 632 static_assert(test::zero == 0, ""); 633 static_assert(test::one == 1, ""); 634 635 } 636 637 namespace test_lambdas 638 { 639 640 void 641 test1() 642 { 643 auto lambda1 = [](){}; 644 auto lambda2 = lambda1; 645 lambda1(); 646 lambda2(); 647 } 648 649 int 650 test2() 651 { 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) 659 a += b--; 660 return x + identity(a + b); 661 }(0); 662 return a + b + c + d + e; 663 } 664 665 int 666 test3() 667 { 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())); }; 675 }; 676 return higher1st(nullary) + higher2nd(nullary)(unary); 677 } 678 679 } 680 681 namespace test_variadic_templates 682 { 683 684 template <int...> 685 struct sum; 686 687 template <int N0, int... N1toN> 688 struct sum<N0, N1toN...> 689 { 690 static constexpr auto value = N0 + sum<N1toN...>::value; 691 }; 692 693 template <> 694 struct sum<> 695 { 696 static constexpr auto value = 0; 697 }; 698 699 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, ""); 705 706 } 707 708 // 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 710 // because of this. 711 namespace test_template_alias_sfinae 712 { 713 714 struct foo {}; 715 716 template<typename T> 717 using member = typename T::member_type; 718 719 template<typename T> 720 void func(...) {} 721 722 template<typename T> 723 void func(member<T>*) {} 724 725 void test(); 726 727 void test() { func<foo>(0); } 728 729 } 730 731} // namespace cxx11 732 733#endif // __cplusplus >= 201103L 734 735]]) 736 737 738dnl Tests for new features in C++14 739 740m4_define([_MM_AX_CXX_COMPILE_STDCXX_testbody_new_in_14], [[ 741 742// If the compiler admits that it is not ready for C++14, why torture it? 743// Hopefully, this will speed up the test. 744 745#ifndef __cplusplus 746 747#error "This is not a C++ compiler" 748 749#elif __cplusplus < 201402L 750 751#error "This is not a C++14 compiler" 752 753#else 754 755namespace cxx14 756{ 757 758 namespace test_polymorphic_lambdas 759 { 760 761 int 762 test() 763 { 764 const auto lambda = [](auto&&... args){ 765 const auto istiny = [](auto x){ 766 return (sizeof(x) == 1UL) ? 1 : 0; 767 }; 768 const int aretiny[] = { istiny(args)... }; 769 return aretiny[0]; 770 }; 771 return lambda(1, 1L, 1.0f, '1'); 772 } 773 774 } 775 776 namespace test_binary_literals 777 { 778 779 constexpr auto ivii = 0b0000000000101010; 780 static_assert(ivii == 42, "wrong value"); 781 782 } 783 784 namespace test_generalized_constexpr 785 { 786 787 template < typename CharT > 788 constexpr unsigned long 789 strlen_c(const CharT *const s) noexcept 790 { 791 auto length = 0UL; 792 for (auto p = s; *p; ++p) 793 ++length; 794 return length; 795 } 796 797 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, ""); 801 802 } 803 804 namespace test_lambda_init_capture 805 { 806 807 int 808 test() 809 { 810 auto x = 0; 811 const auto lambda1 = [a = x](int b){ return a + b; }; 812 const auto lambda2 = [a = lambda1(x)](){ return a; }; 813 return lambda2(); 814 } 815 816 } 817 818 namespace test_digit_seperators 819 { 820 821 constexpr auto ten_million = 100'000'000; 822 static_assert(ten_million == 100000000, ""); 823 824 } 825 826 namespace test_return_type_deduction 827 { 828 829 auto f(int& x) { return x; } 830 decltype(auto) g(int& x) { return x; } 831 832 template < typename T1, typename T2 > 833 struct is_same 834 { 835 static constexpr auto value = false; 836 }; 837 838 template < typename T > 839 struct is_same<T, T> 840 { 841 static constexpr auto value = true; 842 }; 843 844 int 845 test() 846 { 847 auto x = 0; 848 static_assert(is_same<int, decltype(f(x))>::value, ""); 849 static_assert(is_same<int&, decltype(g(x))>::value, ""); 850 return x; 851 } 852 853 } 854 855} // namespace cxx14 856 857#endif // __cplusplus >= 201402L 858 859]]) 860 861 862#serial 20090814 863 864AC_DEFUN([_MM_PRE_INIT], [m4_pattern_forbid([^_?MM_])]) 865 866m4_define([_MM_PREREQ], 867[dnl 868m4_if(m4_quote(m4_version_compare([$2], [$3])), [-1], 869 [m4_fatal([$4 requires $1 $3 (version $2 is installed)])])[]dnl 870]) 871 872AC_DEFUN([MM_PREREQ], 873[dnl 874m4_assert([$# >= 1])[]dnl 875AC_REQUIRE([_MM_PRE_INIT])[]dnl 876_MM_PREREQ([mm-common], [0.9.10], [$1], m4_defn([AC_PACKAGE_NAME]))[]dnl 877]) 878 879 880#serial 20091224 881 882m4_define([_MM_PROG_GCC_VISIBILITY_CHECK], 883[dnl 884AC_PROVIDE([$0])[]dnl 885AC_CACHE_CHECK([for GCC symbol visibility options], 886 [mm_cv_gcc_visibility_cxxflags], 887[dnl 888mm_save_CXXFLAGS=$CXXFLAGS 889CXXFLAGS="$CXXFLAGS -fvisibility=hidden -fvisibility-inlines-hidden" 890dnl 891AC_LINK_IFELSE([AC_LANG_PROGRAM([[ 892#pragma GCC visibility push(default) 893namespace Mm { void __attribute__((__visibility__("hidden"))) mmfunc(); } 894void Mm::mmfunc() {} 895#pragma GCC visibility pop 896]], [[Mm::mmfunc();]])], 897[mm_cv_gcc_visibility_cxxflags='-fvisibility=hidden -fvisibility-inlines-hidden'], 898[mm_cv_gcc_visibility_cxxflags=none]) 899dnl 900CXXFLAGS=$mm_save_CXXFLAGS])[]dnl 901]) 902 903AC_DEFUN([MM_PROG_GCC_VISIBILITY], 904[dnl 905m4_assert([$# >= 1])[]dnl 906AC_LANG_ASSERT([C++])[]dnl 907AC_REQUIRE([_MM_PRE_INIT])[]dnl 908AC_REQUIRE([_MM_PROG_GCC_VISIBILITY_CHECK])[]dnl 909AS_IF([test "x$mm_cv_gcc_visibility_cxxflags" != xnone], 910 [$1=$mm_cv_gcc_visibility_cxxflags], [$1=]) 911AC_SUBST([$1])[]dnl 912]) 913 914m4_define([_MM_ARG_DISABLE_DEPRECATED_API_OPTION], 915[dnl 916AC_PROVIDE([$0])[]dnl 917AC_ARG_ENABLE([deprecated-api], 918 [AS_HELP_STRING([--disable-deprecated-api], 919 [omit deprecated API from the library])], 920 [mm_enable_deprecated_api=$enableval], 921 [mm_enable_deprecated_api=yes])[]dnl 922AS_IF([test "x$mm_enable_deprecated_api" = xno], 923 [AC_MSG_WARN([[Deprecated API will not be built, breaking compatibility. 924Do not use this option for distribution packages.]])], 925 [AC_MSG_NOTICE([[Deprecated API will be built, for backwards-compatibility.]])]) 926AM_CONDITIONAL([DISABLE_DEPRECATED_API], [test "x$mm_enable_deprecated_api" = xno])[]dnl 927]) 928 929m4_define([_MM_ARG_DISABLE_DEPRECATED_API_DEFINE], 930[m4_foreach_w([mm_prefix], [$1], 931[AC_DEFINE(m4_defn([mm_prefix])[_DISABLE_DEPRECATED], [1], 932 [Define to omit deprecated API from the library.]) 933])]) 934 935AC_DEFUN([MM_ARG_DISABLE_DEPRECATED_API], 936[dnl 937AC_REQUIRE([_MM_PRE_INIT])[]dnl 938AC_REQUIRE([_MM_ARG_DISABLE_DEPRECATED_API_OPTION])[]dnl 939AS_IF([test "x$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 942]) 943 944 945#serial 20110327 946 947m4_define([_MM_CONFIG_DOCTOOL_DIR], 948[dnl 949AC_PROVIDE([$0])[]dnl 950AC_REQUIRE([PKG_PROG_PKG_CONFIG])[]dnl 951dnl 952AC_MSG_CHECKING([location of documentation utilities]) 953AS_IF([test "x$MMDOCTOOLDIR" = x], 954[ 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 958The required module mm-common-util could not be found on this system. If you 959are running a binary distribution and the mm-common package is installed, 960make sure that any separate development package for mm-common is installed 961as well. If you built mm-common yourself, it may be necessary to adjust 962the PKG_CONFIG_PATH environment variable for pkg-config to find it. 963]])]) 964]) 965AC_MSG_RESULT([$MMDOCTOOLDIR])[]dnl 966]) 967 968AC_DEFUN([MM_CONFIG_DOCTOOL_DIR], 969[dnl 970AC_REQUIRE([_MM_PRE_INIT])[]dnl 971AC_REQUIRE([MM_CHECK_GNU_MAKE])[]dnl 972m4_ifval([$1], [MMDOCTOOLDIR='[$]{top_srcdir}/$1'], [AC_REQUIRE([_MM_CONFIG_DOCTOOL_DIR])]) 973AM_CONDITIONAL([DIST_DOCTOOLS], [test 'x$1' != 'x'])dnl 974AC_SUBST([MMDOCTOOLDIR])[]dnl 975]) 976 977m4_define([_MM_ARG_ENABLE_DOCUMENTATION], 978[dnl 979AC_PROVIDE([$0])[]dnl 980dnl 981AC_ARG_VAR([DOT], [path to dot utility])[]dnl 982AC_ARG_VAR([DOXYGEN], [path to Doxygen utility])[]dnl 983AC_ARG_VAR([XSLTPROC], [path to xsltproc utility])[]dnl 984dnl 985AC_PATH_PROG([DOT], [dot], [dot]) 986AC_PATH_PROG([DOXYGEN], [doxygen], [doxygen]) 987AC_PATH_PROG([XSLTPROC], [xsltproc], [xsltproc]) 988dnl 989AC_ARG_ENABLE([documentation], 990 [AS_HELP_STRING([--disable-documentation], 991 [do not build or install the documentation])], 992 [ENABLE_DOCUMENTATION=$enableval], 993 [ENABLE_DOCUMENTATION=auto]) 994AS_IF([test "x$ENABLE_DOCUMENTATION" != xno], 995[ 996 mm_err= 997 AS_IF([test "x$MMDOCTOOLDIR" = x], [mm_err='dnl 998The mm-common-util module is available, but the installation of mm-common on this 999machine is missing the shared documentation utilities of the GNOME C++ 1000bindings. It may be necessary to upgrade to a more recent release of 1001mm-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$USE_MAINTAINER_MODE" != xno], 1004 [ 1005 test "x$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 "$mm_err" || mm_err='The documentation cannot be generated because 1009not all of the required tools are available:'$mm_err 1010 ]) 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]])]) 1014]) 1015AM_CONDITIONAL([ENABLE_DOCUMENTATION], [test "x$ENABLE_DOCUMENTATION" = xyes]) 1016AC_SUBST([DOXYGEN_TAGFILES], [[]]) 1017AC_SUBST([DOCINSTALL_FLAGS], [[]])[]dnl 1018]) 1019 1020AC_DEFUN([MM_ARG_ENABLE_DOCUMENTATION], 1021[dnl 1022AC_BEFORE([$0], [MM_ARG_WITH_TAGFILE_DOC])[]dnl 1023AC_REQUIRE([_MM_PRE_INIT])[]dnl 1024AC_REQUIRE([MM_CONFIG_DOCTOOL_DIR])[]dnl 1025AC_REQUIRE([MM_PATH_PERL])[]dnl 1026AC_REQUIRE([_MM_ARG_ENABLE_DOCUMENTATION])[]dnl 1027]) 1028 1029m4_define([_MM_TR_URI], 1030[dnl 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 1033]) 1034 1035m4_define([_MM_ARG_WITH_TAGFILE_DOC], 1036[dnl 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([$4], [[ [auto]]]))], 1041 [ 1042 mm_htmlrefdir=`[expr "X@$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 1047 ], [ 1048 mm_htmlrefdir= 1049 mm_tagname="$3" 1050 mm_tagpath=$mm_tagname[]dnl 1051 ]) 1052 # Prepend working direcory if the tag file path starts with ./ or ../ 1053 AS_CASE([$mm_tagpath], [[.[\\/]*|..[\\/]*]], [mm_tagpath=`pwd`/$mm_tagpath]) 1054 1055m4_ifval([$4], [dnl 1056 # If no local directory was specified, get the default from the .pc file 1057 AS_IF([test "x$mm_htmlrefdir" = x], 1058 [ 1059 mm_htmlrefdir=`$PKG_CONFIG --variable=htmlrefdir "$4" 2>&AS_MESSAGE_LOG_FD`dnl 1060 ]) 1061 # If the user specified a Web URL, allow it to override the public location 1062 AS_CASE([$mm_htmlrefdir], [[http://*|https://*]], [mm_htmlrefpub=$mm_htmlrefdir], 1063 [ 1064 mm_htmlrefpub=`$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=$mm_htmlrefpub 1067 ]) 1068 # The user-supplied tag-file name takes precedence if it includes the path 1069 AS_CASE([$mm_tagpath], [[*[\\/]*]],, 1070 [ 1071 mm_doxytagfile=`$PKG_CONFIG --variable=doxytagfile "$4" 2>&AS_MESSAGE_LOG_FD` 1072 test "x$mm_doxytagfile" = x || mm_tagpath=$mm_doxytagfile 1073 ]) 1074 # Remove trailing slashes and translate to URI 1075 mm_htmlrefpub=_MM_TR_URI([$mm_htmlrefpub]) 1076])[]dnl 1077 mm_htmlrefdir=_MM_TR_URI([$mm_htmlrefdir]) 1078 1079 AC_MSG_RESULT([$mm_tagpath@$mm_htmlrefdir]) 1080 1081 AS_IF([test "x$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@$mm_htmlrefdir/'"])]) 1088 1089 AS_IF([test "x$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 1093]) 1094 1095AC_DEFUN([MM_ARG_WITH_TAGFILE_DOC], 1096[dnl 1097m4_assert([$# >= 1])[]dnl 1098m4_ifval([$2], [AC_REQUIRE([PKG_PROG_PKG_CONFIG])])[]dnl 1099AC_REQUIRE([MM_CONFIG_DOCTOOL_DIR])[]dnl 1100AC_REQUIRE([_MM_ARG_ENABLE_DOCUMENTATION])[]dnl 1101dnl 1102AS_IF([test "x$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 1105]) 1106 1107 1108#serial 20091228 1109 1110m4_define([_MM_INIT_MODULE_VERSION], 1111[dnl 1112m4_ifval([$3], 1113[AC_SUBST([$2][_MAJOR_VERSION], [$3]) 1114AC_DEFINE([$2][_MAJOR_VERSION], [$3], [Major version number of $1.]) 1115])[]dnl 1116m4_ifval([$4], 1117[AC_SUBST([$2][_MINOR_VERSION], [$4]) 1118AC_DEFINE([$2][_MINOR_VERSION], [$4], [Minor version number of $1.]) 1119])[]dnl 1120m4_ifval([$5], 1121[AC_SUBST([$2][_MICRO_VERSION], [$5]) 1122AC_DEFINE([$2][_MICRO_VERSION], [$5], [Micro version number of $1.]) 1123])[]dnl 1124]) 1125 1126m4_define([_MM_INIT_MODULE_SUBST], 1127[dnl 1128AC_SUBST([$5][_MODULE_NAME], ['$1']) 1129AC_SUBST([$5][_VERSION], ['$2']) 1130m4_ifval([$4], 1131[AC_SUBST([$5][_API_VERSION], ['$4']) 1132])[]dnl 1133_MM_INIT_MODULE_VERSION([$3], [$5], m4_bpatsubst([$2], [[^0123456789]+], [,]))[]dnl 1134]) 1135 1136m4_define([_MM_INIT_MODULE_BASENAME], 1137 [_MM_INIT_MODULE_SUBST([$1], [$2], [$3], [$4], 1138 m4_quote(AS_TR_CPP(m4_quote(m4_translit([$3], [+], [X])))))]) 1139 1140AC_DEFUN([MM_INIT_MODULE], 1141[dnl 1142m4_assert([$# >= 1])[]dnl 1143AC_REQUIRE([_MM_PRE_INIT])[]dnl 1144AC_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 1149]) 1150 1151 1152#serial 20090822 1153 1154m4_define([_MM_CHECK_GNU_MAKE], 1155[dnl 1156AC_PROVIDE([$0])[]dnl 1157AC_MSG_CHECKING([whether [$]{MAKE-make} supports GNU make features]) 1158cat >conftest.make <<'_MMEOF' 1159override reverse = [$](2)[$](subst ,, )[$](1) 1160override result := [$](word 2,[$](call reverse,success,failure)) 1161all: ; test '[$](result)' = success 1162.PHONY: all 1163_MMEOF 1164AS_IF([[$]{MAKE-make} -f conftest.make >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD], 1165 [mm_gnu_make=yes], [mm_gnu_make=no]) 1166rm -f conftest.make 1167AC_MSG_RESULT([$mm_gnu_make]) 1168AS_IF([test "x$mm_gnu_make" != xyes], 1169 [AC_MSG_FAILURE([[The GNU make program is required to build $PACKAGE_NAME.]])])[]dnl 1170]) 1171 1172AC_DEFUN([MM_CHECK_GNU_MAKE], 1173[dnl 1174AC_REQUIRE([_MM_PRE_INIT])[]dnl 1175AC_REQUIRE([_MM_CHECK_GNU_MAKE])[]dnl 1176]) 1177 1178m4_define([_MM_PATH_PERL], 1179[dnl 1180AC_PROVIDE([$0])[]dnl 1181AC_ARG_VAR([PERL], [path to Perl interpreter])[]dnl 1182AC_PATH_PROG([PERL], [perl], [perl])[]dnl 1183]) 1184 1185AC_DEFUN([MM_PATH_PERL], 1186[dnl 1187AC_REQUIRE([_MM_PRE_INIT])[]dnl 1188AC_REQUIRE([_MM_PATH_PERL])[]dnl 1189]) 1190 1191m4_define([_MM_CHECK_PERL], 1192[dnl 1193AS_IF([$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 1196]) 1197 1198AC_DEFUN([MM_CHECK_PERL], 1199[dnl 1200AC_REQUIRE([_MM_PRE_INIT])[]dnl 1201AC_REQUIRE([_MM_PATH_PERL])[]dnl 1202_MM_CHECK_PERL(m4_ifval([$1], [[$1]], [[5.6.0]]), [$2], [$3])[]dnl 1203]) 1204 1205AC_DEFUN([MM_PKG_CONFIG_SUBST], 1206[dnl 1207m4_assert([$# >= 2])[]dnl 1208AC_REQUIRE([_MM_PRE_INIT])[]dnl 1209AC_REQUIRE([PKG_PROG_PKG_CONFIG])[]dnl 1210AC_MSG_CHECKING([for $1]) 1211dnl 1212AS_IF([test -z "[$]{$1+set}"], 1213 [$1=`$PKG_CONFIG $2 2>&AS_MESSAGE_LOG_FD` 1214 AS_IF([test "[$]?" -eq 0], [$3], [$4])]) 1215dnl 1216AC_MSG_RESULT([[$]$1]) 1217AC_SUBST([$1])[]dnl 1218]) 1219 1220 1221#serial 20091103 1222 1223m4_define([_MM_ARG_ENABLE_WARNINGS_OPTION], 1224[dnl 1225AC_PROVIDE([$0])[]dnl 1226AC_ARG_ENABLE([warnings], 1227 [AS_HELP_STRING([[--enable-warnings[=min|max|fatal|no]]], 1228 [set compiler pedantry level [default=min]])], 1229 [mm_enable_warnings=$enableval], 1230 [mm_enable_warnings=min])[]dnl 1231]) 1232 1233AC_DEFUN([MM_ARG_ENABLE_WARNINGS], 1234[dnl 1235m4_assert([$# >= 3])[]dnl 1236AC_REQUIRE([_MM_PRE_INIT])[]dnl 1237AC_REQUIRE([_MM_ARG_ENABLE_WARNINGS_OPTION])[]dnl 1238dnl 1239AS_CASE([$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++]])]) 1243dnl 1244AC_MSG_CHECKING([which $mm_lang compiler warning flags to use]) 1245m4_ifval([$4], [mm_deprecation_flags= 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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). 2293AC_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. 2299dnl Don't test for $cross_compiling = yes, because it might be 'maybe'. 2300if test "$cross_compiling" != no; then 2301 AC_CHECK_TOOL([STRIP], [strip], :) 2302fi 2303INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s" 2304AC_SUBST([INSTALL_STRIP_PROGRAM])]) 2305 2306# Copyright (C) 2006-2014 Free Software Foundation, Inc. 2307# 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. 2311 2312# _AM_SUBST_NOTMAKE(VARIABLE) 2313# --------------------------- 2314# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in. 2315# This macro is traced by Automake. 2316AC_DEFUN([_AM_SUBST_NOTMAKE]) 2317 2318# AM_SUBST_NOTMAKE(VARIABLE) 2319# -------------------------- 2320# Public sister of _AM_SUBST_NOTMAKE. 2321AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)]) 2322 2323# Check how to create a tarball. -*- Autoconf -*- 2324 2325# Copyright (C) 2004-2014 Free Software Foundation, Inc. 2326# 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. 2330 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'. 2335# 2336# Substitute a variable $(am__tar) that is a command 2337# writing to stdout a FORMAT-tarball containing the directory 2338# $tardir. 2339# tardir=directory && $(am__tar) > result.tar 2340# 2341# Substitute a variable $(am__untar) that extract such 2342# a tarball read from stdin. 2343# $(am__untar) < result.tar 2344# 2345AC_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 ... 2348AC_SUBST([AMTAR], ['$${TAR-tar}']) 2349 2350# We'll loop over all known methods to create a tar archive until one works. 2351_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none' 2352 2353m4_if([$1], [v7], 2354 [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'], 2355 2356 [m4_case([$1], 2357 [ustar], 2358 [# The POSIX 1988 'ustar' format is defined with fixed-size fields. 2359 # There is notably a 21 bits limit for the UID and the GID. In fact, 2360 # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343 2361 # and bug#13588). 2362 am_max_uid=2097151 # 2^21 - 1 2363 am_max_gid=$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 $am_max_uid; then 2372 AC_MSG_RESULT([yes]) 2373 else 2374 AC_MSG_RESULT([no]) 2375 _am_tools=none 2376 fi 2377 AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format]) 2378 if test $am_gid -le $am_max_gid; then 2379 AC_MSG_RESULT([yes]) 2380 else 2381 AC_MSG_RESULT([no]) 2382 _am_tools=none 2383 fi], 2384 2385 [pax], 2386 [], 2387 2388 [m4_fatal([Unknown tar format])]) 2389 2390 AC_MSG_CHECKING([how to create a $1 tar archive]) 2391 2392 # Go ahead even if we have the value already cached. We do so because we 2393 # need to set the values for the 'am__tar' and 'am__untar' variables. 2394 _am_tools=${am_cv_prog_tar_$1-$_am_tools} 2395 2396 for _am_tool in $_am_tools; do 2397 case $_am_tool in 2398 gnutar) 2399 for _am_tar in tar gnutar gtar; do 2400 AM_RUN_LOG([$_am_tar --version]) && break 2401 done 2402 am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"' 2403 am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"' 2404 am__untar="$_am_tar -xf -" 2405 ;; 2406 plaintar) 2407 # Must skip GNU tar: if it does not support --format= it doesn't create 2408 # ustar tarball either. 2409 (tar --version) >/dev/null 2>&1 && continue 2410 am__tar='tar chf - "$$tardir"' 2411 am__tar_='tar chf - "$tardir"' 2412 am__untar='tar xf -' 2413 ;; 2414 pax) 2415 am__tar='pax -L -x $1 -w "$$tardir"' 2416 am__tar_='pax -L -x $1 -w "$tardir"' 2417 am__untar='pax -r' 2418 ;; 2419 cpio) 2420 am__tar='find "$$tardir" -print | cpio -o -H $1 -L' 2421 am__tar_='find "$tardir" -print | cpio -o -H $1 -L' 2422 am__untar='cpio -i -H $1 -d' 2423 ;; 2424 none) 2425 am__tar=false 2426 am__tar_=false 2427 am__untar=false 2428 ;; 2429 esac 2430 2431 # If the value was cached, stop now. We just wanted to have am__tar 2432 # and am__untar set. 2433 test -n "${am_cv_prog_tar_$1}" && break 2434 2435 # tar/untar a dummy directory, and stop if the command works. 2436 rm -rf conftest.dir 2437 mkdir conftest.dir 2438 echo GrepMe > conftest.dir/file 2439 AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar]) 2440 rm -rf conftest.dir 2441 if test -s conftest.tar; then 2442 AM_RUN_LOG([$am__untar <conftest.tar]) 2443 AM_RUN_LOG([cat conftest.dir/file]) 2444 grep GrepMe conftest.dir/file >/dev/null 2>&1 && break 2445 fi 2446 done 2447 rm -rf conftest.dir 2448 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])]) 2451 2452AC_SUBST([am__tar]) 2453AC_SUBST([am__untar]) 2454]) # _AM_PROG_TAR 2455 2456m4_include([build/libtool.m4]) 2457m4_include([build/ltoptions.m4]) 2458m4_include([build/ltsugar.m4]) 2459m4_include([build/ltversion.m4]) 2460m4_include([build/lt~obsolete.m4]) 2461