diff options
Diffstat (limited to 'm4')
| -rw-r--r-- | m4/ax_cflags_warn_all.m4 | 120 | ||||
| -rw-r--r-- | m4/ax_check_compile_flag.m4 | 74 | ||||
| -rw-r--r-- | m4/ax_cxx_compile_stdcxx.m4 | 562 | ||||
| -rw-r--r-- | m4/ax_cxx_compile_stdcxx_11.m4 | 39 | ||||
| -rw-r--r-- | m4/pkg.m4 | 157 |
5 files changed, 0 insertions, 952 deletions
diff --git a/m4/ax_cflags_warn_all.m4 b/m4/ax_cflags_warn_all.m4 deleted file mode 100644 index ae0e7ef2..00000000 --- a/m4/ax_cflags_warn_all.m4 +++ /dev/null @@ -1,120 +0,0 @@ -dnl @synopsis AX_CFLAGS_WARN_ALL [(shellvar [,default, [A/NA]])] -dnl -dnl Try to find a compiler option that enables most reasonable -dnl warnings. This macro is directly derived from VL_PROG_CC_WARNINGS -dnl which is split up into two AX_CFLAGS_WARN_ALL and -dnl AX_CFLAGS_WARN_ALL_ANSI -dnl -dnl For the GNU CC compiler it will be -Wall (and -ansi -pedantic) The -dnl result is added to the shellvar being CFLAGS by default. -dnl -dnl Currently this macro knows about GCC, Solaris C compiler, Digital -dnl Unix C compiler, C for AIX Compiler, HP-UX C compiler, IRIX C -dnl compiler, NEC SX-5 (Super-UX 10) C compiler, and Cray J90 (Unicos -dnl 10.0.0.8) C compiler. -dnl -dnl - $1 shell-variable-to-add-to : CFLAGS -dnl - $2 add-value-if-not-found : nothing -dnl - $3 action-if-found : add value to shellvariable -dnl - $4 action-if-not-found : nothing -dnl -dnl @category C -dnl @author Guido Draheim <guidod@gmx.de> -dnl @version 2003-01-06 -dnl @license GPLWithACException - -AC_DEFUN([AX_CFLAGS_WARN_ALL],[dnl -AS_VAR_PUSHDEF([FLAGS],[CFLAGS])dnl -AS_VAR_PUSHDEF([VAR],[ac_cv_cflags_warn_all])dnl -AC_CACHE_CHECK([m4_ifval($1,$1,FLAGS) for maximum warnings], -VAR,[VAR="no, unknown" - AC_LANG_SAVE - AC_LANG(C) - ac_save_[]FLAGS="$[]FLAGS" -for ac_arg dnl -in "-pedantic -Wdeclaration-after-statement % dnl - -Wall -Wdeclaration-after-statement" dnl works since GCC version 3 - "-pedantic % -Wall" dnl older GCC - "-xstrconst % -v" dnl Solaris C - "-std1 % -verbose -w0 -warnprotos" dnl Digital Unix - "-qlanglvl=ansi % -qsrcmsg -qinfo=all:noppt:noppc:noobs:nocnd" dnl AIX - "-ansi -ansiE % -fullwarn" dnl IRIX - "+ESlit % +w1" dnl HP-UX C - "-Xc % -pvctl[,]fullmsg" dnl NEC SX-5 (Super-UX 10) - "-h conform % -h msglevel 2" dnl Cray C (Unicos) - # -do FLAGS="$ac_save_[]FLAGS "`echo $ac_arg | sed -e 's,%%.*,,' -e 's,%,,'` - AC_TRY_COMPILE([],[return 0;], - [VAR=`echo $ac_arg | sed -e 's,.*% *,,'` ; break]) -done - FLAGS="$ac_save_[]FLAGS" - AC_LANG_RESTORE -]) -case ".$VAR" in - .ok|.ok,*) m4_ifvaln($3,$3) ;; - .|.no|.no,*) m4_ifvaln($4,$4,[m4_ifval($2,[ - AC_RUN_LOG([: m4_ifval($1,$1,FLAGS)="$m4_ifval($1,$1,FLAGS) $2"]) - m4_ifval($1,$1,FLAGS)="$m4_ifval($1,$1,FLAGS) $2"])]) ;; - *) m4_ifvaln($3,$3,[ - if echo " $[]m4_ifval($1,$1,FLAGS) " | grep " $VAR " 2>&1 >/dev/null - then AC_RUN_LOG([: m4_ifval($1,$1,FLAGS) does contain $VAR]) - else AC_RUN_LOG([: m4_ifval($1,$1,FLAGS)="$m4_ifval($1,$1,FLAGS) $VAR"]) - m4_ifval($1,$1,FLAGS)="$m4_ifval($1,$1,FLAGS) $VAR" - fi ]) ;; -esac -AS_VAR_POPDEF([VAR])dnl -AS_VAR_POPDEF([FLAGS])dnl -]) - -dnl the only difference - the LANG selection... and the default FLAGS - -AC_DEFUN([AX_CXXFLAGS_WARN_ALL],[dnl -AS_VAR_PUSHDEF([FLAGS],[CXXFLAGS])dnl -AS_VAR_PUSHDEF([VAR],[ac_cv_cxxflags_warn_all])dnl -AC_CACHE_CHECK([m4_ifval($1,$1,FLAGS) for maximum warnings], -VAR,[VAR="no, unknown" - AC_LANG_SAVE - AC_LANG(C++) - ac_save_[]FLAGS="$[]FLAGS" -for ac_arg dnl -in "-pedantic % -Wall" dnl GCC - "-xstrconst % -v" dnl Solaris C - "-std1 % -verbose -w0 -warnprotos" dnl Digital Unix - "-qlanglvl=ansi % -qsrcmsg -qinfo=all:noppt:noppc:noobs:nocnd" dnl AIX - "-ansi -ansiE % -fullwarn" dnl IRIX - "+ESlit % +w1" dnl HP-UX C - "-Xc % -pvctl[,]fullmsg" dnl NEC SX-5 (Super-UX 10) - "-h conform % -h msglevel 2" dnl Cray C (Unicos) - # -do FLAGS="$ac_save_[]FLAGS "`echo $ac_arg | sed -e 's,%%.*,,' -e 's,%,,'` - AC_TRY_COMPILE([],[return 0;], - [VAR=`echo $ac_arg | sed -e 's,.*% *,,'` ; break]) -done - FLAGS="$ac_save_[]FLAGS" - AC_LANG_RESTORE -]) -case ".$VAR" in - .ok|.ok,*) m4_ifvaln($3,$3) ;; - .|.no|.no,*) m4_ifvaln($4,$4,[m4_ifval($2,[ - AC_RUN_LOG([: m4_ifval($1,$1,FLAGS)="$m4_ifval($1,$1,FLAGS) $2"]) - m4_ifval($1,$1,FLAGS)="$m4_ifval($1,$1,FLAGS) $2"])]) ;; - *) m4_ifvaln($3,$3,[ - if echo " $[]m4_ifval($1,$1,FLAGS) " | grep " $VAR " 2>&1 >/dev/null - then AC_RUN_LOG([: m4_ifval($1,$1,FLAGS) does contain $VAR]) - else AC_RUN_LOG([: m4_ifval($1,$1,FLAGS)="$m4_ifval($1,$1,FLAGS) $VAR"]) - m4_ifval($1,$1,FLAGS)="$m4_ifval($1,$1,FLAGS) $VAR" - fi ]) ;; -esac -AS_VAR_POPDEF([VAR])dnl -AS_VAR_POPDEF([FLAGS])dnl -]) - -dnl implementation tactics: -dnl the for-argument contains a list of options. The first part of -dnl these does only exist to detect the compiler - usually it is -dnl a global option to enable -ansi or -extrawarnings. All other -dnl compilers will fail about it. That was needed since a lot of -dnl compilers will give false positives for some option-syntax -dnl like -Woption or -Xoption as they think of it is a pass-through -dnl to later compile stages or something. The "%" is used as a -dnl delimimiter. A non-option comment can be given after "%%" marks. diff --git a/m4/ax_check_compile_flag.m4 b/m4/ax_check_compile_flag.m4 deleted file mode 100644 index dcabb92a..00000000 --- a/m4/ax_check_compile_flag.m4 +++ /dev/null @@ -1,74 +0,0 @@ -# =========================================================================== -# https://www.gnu.org/software/autoconf-archive/ax_check_compile_flag.html -# =========================================================================== -# -# SYNOPSIS -# -# AX_CHECK_COMPILE_FLAG(FLAG, [ACTION-SUCCESS], [ACTION-FAILURE], [EXTRA-FLAGS], [INPUT]) -# -# DESCRIPTION -# -# Check whether the given FLAG works with the current language's compiler -# or gives an error. (Warnings, however, are ignored) -# -# ACTION-SUCCESS/ACTION-FAILURE are shell commands to execute on -# success/failure. -# -# If EXTRA-FLAGS is defined, it is added to the current language's default -# flags (e.g. CFLAGS) when the check is done. The check is thus made with -# the flags: "CFLAGS EXTRA-FLAGS FLAG". This can for example be used to -# force the compiler to issue an error when a bad flag is given. -# -# INPUT gives an alternative input source to AC_COMPILE_IFELSE. -# -# NOTE: Implementation based on AX_CFLAGS_GCC_OPTION. Please keep this -# macro in sync with AX_CHECK_{PREPROC,LINK}_FLAG. -# -# LICENSE -# -# Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de> -# Copyright (c) 2011 Maarten Bosmans <mkbosmans@gmail.com> -# -# This program is free software: you can redistribute it and/or modify it -# under the terms of the GNU General Public License as published by the -# Free Software Foundation, either version 3 of the License, or (at your -# option) any later version. -# -# This program is distributed in the hope that it will be useful, but -# WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General -# Public License for more details. -# -# You should have received a copy of the GNU General Public License along -# with this program. If not, see <https://www.gnu.org/licenses/>. -# -# As a special exception, the respective Autoconf Macro's copyright owner -# gives unlimited permission to copy, distribute and modify the configure -# scripts that are the output of Autoconf when processing the Macro. You -# need not follow the terms of the GNU General Public License when using -# or distributing such scripts, even though portions of the text of the -# Macro appear in them. The GNU General Public License (GPL) does govern -# all other use of the material that constitutes the Autoconf Macro. -# -# This special exception to the GPL applies to versions of the Autoconf -# Macro released by the Autoconf Archive. When you make and distribute a -# modified version of the Autoconf Macro, you may extend this special -# exception to the GPL to apply to your modified version as well. - -#serial 5 - -AC_DEFUN([AX_CHECK_COMPILE_FLAG], -[AC_PREREQ(2.64)dnl for _AC_LANG_PREFIX and AS_VAR_IF -AS_VAR_PUSHDEF([CACHEVAR],[ax_cv_check_[]_AC_LANG_ABBREV[]flags_$4_$1])dnl -AC_CACHE_CHECK([whether _AC_LANG compiler accepts $1], CACHEVAR, [ - ax_check_save_flags=$[]_AC_LANG_PREFIX[]FLAGS - _AC_LANG_PREFIX[]FLAGS="$[]_AC_LANG_PREFIX[]FLAGS $4 $1" - AC_COMPILE_IFELSE([m4_default([$5],[AC_LANG_PROGRAM()])], - [AS_VAR_SET(CACHEVAR,[yes])], - [AS_VAR_SET(CACHEVAR,[no])]) - _AC_LANG_PREFIX[]FLAGS=$ax_check_save_flags]) -AS_VAR_IF(CACHEVAR,yes, - [m4_default([$2], :)], - [m4_default([$3], :)]) -AS_VAR_POPDEF([CACHEVAR])dnl -])dnl AX_CHECK_COMPILE_FLAGS diff --git a/m4/ax_cxx_compile_stdcxx.m4 b/m4/ax_cxx_compile_stdcxx.m4 deleted file mode 100644 index 1bff58a5..00000000 --- a/m4/ax_cxx_compile_stdcxx.m4 +++ /dev/null @@ -1,562 +0,0 @@ -# =========================================================================== -# http://www.gnu.org/software/autoconf-archive/ax_cxx_compile_stdcxx.html -# =========================================================================== -# -# SYNOPSIS -# -# AX_CXX_COMPILE_STDCXX(VERSION, [ext|noext], [mandatory|optional]) -# -# DESCRIPTION -# -# Check for baseline language coverage in the compiler for the specified -# version of the C++ standard. If necessary, add switches to CXX and -# CXXCPP to enable support. VERSION may be '11' (for the C++11 standard) -# or '14' (for the C++14 standard). -# -# The second argument, if specified, indicates whether you insist on an -# extended mode (e.g. -std=gnu++11) or a strict conformance mode (e.g. -# -std=c++11). If neither is specified, you get whatever works, with -# preference for an extended mode. -# -# The third argument, if specified 'mandatory' or if left unspecified, -# indicates that baseline support for the specified C++ standard is -# required and that the macro should error out if no mode with that -# support is found. If specified 'optional', then configuration proceeds -# regardless, after defining HAVE_CXX${VERSION} if and only if a -# supporting mode is found. -# -# LICENSE -# -# Copyright (c) 2008 Benjamin Kosnik <bkoz@redhat.com> -# Copyright (c) 2012 Zack Weinberg <zackw@panix.com> -# Copyright (c) 2013 Roy Stogner <roystgnr@ices.utexas.edu> -# Copyright (c) 2014, 2015 Google Inc.; contributed by Alexey Sokolov <sokolov@google.com> -# Copyright (c) 2015 Paul Norman <penorman@mac.com> -# Copyright (c) 2015 Moritz Klammler <moritz@klammler.eu> -# -# Copying and distribution of this file, with or without modification, are -# permitted in any medium without royalty provided the copyright notice -# and this notice are preserved. This file is offered as-is, without any -# warranty. - -#serial 4 - -dnl This macro is based on the code from the AX_CXX_COMPILE_STDCXX_11 macro -dnl (serial version number 13). - -AC_DEFUN([AX_CXX_COMPILE_STDCXX], [dnl - m4_if([$1], [11], [], - [$1], [14], [], - [$1], [17], [m4_fatal([support for C++17 not yet implemented in AX_CXX_COMPILE_STDCXX])], - [m4_fatal([invalid first argument `$1' to AX_CXX_COMPILE_STDCXX])])dnl - m4_if([$2], [], [], - [$2], [ext], [], - [$2], [noext], [], - [m4_fatal([invalid second argument `$2' to AX_CXX_COMPILE_STDCXX])])dnl - m4_if([$3], [], [ax_cxx_compile_cxx$1_required=true], - [$3], [mandatory], [ax_cxx_compile_cxx$1_required=true], - [$3], [optional], [ax_cxx_compile_cxx$1_required=false], - [m4_fatal([invalid third argument `$3' to AX_CXX_COMPILE_STDCXX])]) - AC_LANG_PUSH([C++])dnl - ac_success=no - AC_CACHE_CHECK(whether $CXX supports C++$1 features by default, - ax_cv_cxx_compile_cxx$1, - [AC_COMPILE_IFELSE([AC_LANG_SOURCE([_AX_CXX_COMPILE_STDCXX_testbody_$1])], - [ax_cv_cxx_compile_cxx$1=yes], - [ax_cv_cxx_compile_cxx$1=no])]) - if test x$ax_cv_cxx_compile_cxx$1 = xyes; then - ac_success=yes - fi - - m4_if([$2], [noext], [], [dnl - if test x$ac_success = xno; then - for switch in -std=gnu++$1 -std=gnu++0x; do - cachevar=AS_TR_SH([ax_cv_cxx_compile_cxx$1_$switch]) - AC_CACHE_CHECK(whether $CXX supports C++$1 features with $switch, - $cachevar, - [ac_save_CXX="$CXX" - CXX="$CXX $switch" - AC_COMPILE_IFELSE([AC_LANG_SOURCE([_AX_CXX_COMPILE_STDCXX_testbody_$1])], - [eval $cachevar=yes], - [eval $cachevar=no]) - CXX="$ac_save_CXX"]) - if eval test x\$$cachevar = xyes; then - CXX="$CXX $switch" - if test -n "$CXXCPP" ; then - CXXCPP="$CXXCPP $switch" - fi - ac_success=yes - break - fi - done - fi]) - - m4_if([$2], [ext], [], [dnl - if test x$ac_success = xno; then - dnl HP's aCC needs +std=c++11 according to: - dnl http://h21007.www2.hp.com/portal/download/files/unprot/aCxx/PDF_Release_Notes/769149-001.pdf - dnl Cray's crayCC needs "-h std=c++11" - for switch in -std=c++$1 -std=c++0x +std=c++$1 "-h std=c++$1"; do - cachevar=AS_TR_SH([ax_cv_cxx_compile_cxx$1_$switch]) - AC_CACHE_CHECK(whether $CXX supports C++$1 features with $switch, - $cachevar, - [ac_save_CXX="$CXX" - CXX="$CXX $switch" - AC_COMPILE_IFELSE([AC_LANG_SOURCE([_AX_CXX_COMPILE_STDCXX_testbody_$1])], - [eval $cachevar=yes], - [eval $cachevar=no]) - CXX="$ac_save_CXX"]) - if eval test x\$$cachevar = xyes; then - CXX="$CXX $switch" - if test -n "$CXXCPP" ; then - CXXCPP="$CXXCPP $switch" - fi - ac_success=yes - break - fi - done - fi]) - AC_LANG_POP([C++]) - if test x$ax_cxx_compile_cxx$1_required = xtrue; then - if test x$ac_success = xno; then - AC_MSG_ERROR([*** A compiler with support for C++$1 language features is required.]) - fi - fi - if test x$ac_success = xno; then - HAVE_CXX$1=0 - AC_MSG_NOTICE([No compiler with C++$1 support was found]) - else - HAVE_CXX$1=1 - AC_DEFINE(HAVE_CXX$1,1, - [define if the compiler supports basic C++$1 syntax]) - fi - AC_SUBST(HAVE_CXX$1) -]) - - -dnl Test body for checking C++11 support - -m4_define([_AX_CXX_COMPILE_STDCXX_testbody_11], - _AX_CXX_COMPILE_STDCXX_testbody_new_in_11 -) - - -dnl Test body for checking C++14 support - -m4_define([_AX_CXX_COMPILE_STDCXX_testbody_14], - _AX_CXX_COMPILE_STDCXX_testbody_new_in_11 - _AX_CXX_COMPILE_STDCXX_testbody_new_in_14 -) - - -dnl Tests for new features in C++11 - -m4_define([_AX_CXX_COMPILE_STDCXX_testbody_new_in_11], [[ - -// If the compiler admits that it is not ready for C++11, why torture it? -// Hopefully, this will speed up the test. - -#ifndef __cplusplus - -#error "This is not a C++ compiler" - -#elif __cplusplus < 201103L - -#error "This is not a C++11 compiler" - -#else - -namespace cxx11 -{ - - namespace test_static_assert - { - - template <typename T> - struct check - { - static_assert(sizeof(int) <= sizeof(T), "not big enough"); - }; - - } - - namespace test_final_override - { - - struct Base - { - virtual void f() {} - }; - - struct Derived : public Base - { - virtual void f() override {} - }; - - } - - namespace test_double_right_angle_brackets - { - - template < typename T > - struct check {}; - - typedef check<void> single_type; - typedef check<check<void>> double_type; - typedef check<check<check<void>>> triple_type; - typedef check<check<check<check<void>>>> quadruple_type; - - } - - namespace test_decltype - { - - int - f() - { - int a = 1; - decltype(a) b = 2; - return a + b; - } - - } - - namespace test_type_deduction - { - - template < typename T1, typename T2 > - struct is_same - { - static const bool value = false; - }; - - template < typename T > - struct is_same<T, T> - { - static const bool value = true; - }; - - template < typename T1, typename T2 > - auto - add(T1 a1, T2 a2) -> decltype(a1 + a2) - { - return a1 + a2; - } - - int - test(const int c, volatile int v) - { - static_assert(is_same<int, decltype(0)>::value == true, ""); - static_assert(is_same<int, decltype(c)>::value == false, ""); - static_assert(is_same<int, decltype(v)>::value == false, ""); - auto ac = c; - auto av = v; - auto sumi = ac + av + 'x'; - auto sumf = ac + av + 1.0; - static_assert(is_same<int, decltype(ac)>::value == true, ""); - static_assert(is_same<int, decltype(av)>::value == true, ""); - static_assert(is_same<int, decltype(sumi)>::value == true, ""); - static_assert(is_same<int, decltype(sumf)>::value == false, ""); - static_assert(is_same<int, decltype(add(c, v))>::value == true, ""); - return (sumf > 0.0) ? sumi : add(c, v); - } - - } - - namespace test_noexcept - { - - int f() { return 0; } - int g() noexcept { return 0; } - - static_assert(noexcept(f()) == false, ""); - static_assert(noexcept(g()) == true, ""); - - } - - namespace test_constexpr - { - - template < typename CharT > - unsigned long constexpr - strlen_c_r(const CharT *const s, const unsigned long acc) noexcept - { - return *s ? strlen_c_r(s + 1, acc + 1) : acc; - } - - template < typename CharT > - unsigned long constexpr - strlen_c(const CharT *const s) noexcept - { - return strlen_c_r(s, 0UL); - } - - static_assert(strlen_c("") == 0UL, ""); - static_assert(strlen_c("1") == 1UL, ""); - static_assert(strlen_c("example") == 7UL, ""); - static_assert(strlen_c("another\0example") == 7UL, ""); - - } - - namespace test_rvalue_references - { - - template < int N > - struct answer - { - static constexpr int value = N; - }; - - answer<1> f(int&) { return answer<1>(); } - answer<2> f(const int&) { return answer<2>(); } - answer<3> f(int&&) { return answer<3>(); } - - void - test() - { - int i = 0; - const int c = 0; - static_assert(decltype(f(i))::value == 1, ""); - static_assert(decltype(f(c))::value == 2, ""); - static_assert(decltype(f(0))::value == 3, ""); - } - - } - - namespace test_uniform_initialization - { - - struct test - { - static const int zero {}; - static const int one {1}; - }; - - static_assert(test::zero == 0, ""); - static_assert(test::one == 1, ""); - - } - - namespace test_lambdas - { - - void - test1() - { - auto lambda1 = [](){}; - auto lambda2 = lambda1; - lambda1(); - lambda2(); - } - - int - test2() - { - auto a = [](int i, int j){ return i + j; }(1, 2); - auto b = []() -> int { return '0'; }(); - auto c = [=](){ return a + b; }(); - auto d = [&](){ return c; }(); - auto e = [a, &b](int x) mutable { - const auto identity = [](int y){ return y; }; - for (auto i = 0; i < a; ++i) - a += b--; - return x + identity(a + b); - }(0); - return a + b + c + d + e; - } - - int - test3() - { - const auto nullary = [](){ return 0; }; - const auto unary = [](int x){ return x; }; - using nullary_t = decltype(nullary); - using unary_t = decltype(unary); - const auto higher1st = [](nullary_t f){ return f(); }; - const auto higher2nd = [unary](nullary_t f1){ - return [unary, f1](unary_t f2){ return f2(unary(f1())); }; - }; - return higher1st(nullary) + higher2nd(nullary)(unary); - } - - } - - namespace test_variadic_templates - { - - template <int...> - struct sum; - - template <int N0, int... N1toN> - struct sum<N0, N1toN...> - { - static constexpr auto value = N0 + sum<N1toN...>::value; - }; - - template <> - struct sum<> - { - static constexpr auto value = 0; - }; - - static_assert(sum<>::value == 0, ""); - static_assert(sum<1>::value == 1, ""); - static_assert(sum<23>::value == 23, ""); - static_assert(sum<1, 2>::value == 3, ""); - static_assert(sum<5, 5, 11>::value == 21, ""); - static_assert(sum<2, 3, 5, 7, 11, 13>::value == 41, ""); - - } - - // https://stackoverflow.com/q/13728184 - // Clang 3.1 fails with headers of libstd++ 4.8.3 when using std::function - // because of this. - namespace test_template_alias_sfinae - { - - struct foo {}; - - template<typename T> - using member = typename T::member_type; - - template<typename T> - void func(...) {} - - template<typename T> - void func(member<T>*) {} - - void test(); - - void test() { func<foo>(0); } - - } - -} // namespace cxx11 - -#endif // __cplusplus >= 201103L - -]]) - - -dnl Tests for new features in C++14 - -m4_define([_AX_CXX_COMPILE_STDCXX_testbody_new_in_14], [[ - -// If the compiler admits that it is not ready for C++14, why torture it? -// Hopefully, this will speed up the test. - -#ifndef __cplusplus - -#error "This is not a C++ compiler" - -#elif __cplusplus < 201402L - -#error "This is not a C++14 compiler" - -#else - -namespace cxx14 -{ - - namespace test_polymorphic_lambdas - { - - int - test() - { - const auto lambda = [](auto&&... args){ - const auto istiny = [](auto x){ - return (sizeof(x) == 1UL) ? 1 : 0; - }; - const int aretiny[] = { istiny(args)... }; - return aretiny[0]; - }; - return lambda(1, 1L, 1.0f, '1'); - } - - } - - namespace test_binary_literals - { - - constexpr auto ivii = 0b0000000000101010; - static_assert(ivii == 42, "wrong value"); - - } - - namespace test_generalized_constexpr - { - - template < typename CharT > - constexpr unsigned long - strlen_c(const CharT *const s) noexcept - { - auto length = 0UL; - for (auto p = s; *p; ++p) - ++length; - return length; - } - - static_assert(strlen_c("") == 0UL, ""); - static_assert(strlen_c("x") == 1UL, ""); - static_assert(strlen_c("test") == 4UL, ""); - static_assert(strlen_c("another\0test") == 7UL, ""); - - } - - namespace test_lambda_init_capture - { - - int - test() - { - auto x = 0; - const auto lambda1 = [a = x](int b){ return a + b; }; - const auto lambda2 = [a = lambda1(x)](){ return a; }; - return lambda2(); - } - - } - - namespace test_digit_seperators - { - - constexpr auto ten_million = 100'000'000; - static_assert(ten_million == 100000000, ""); - - } - - namespace test_return_type_deduction - { - - auto f(int& x) { return x; } - decltype(auto) g(int& x) { return x; } - - template < typename T1, typename T2 > - struct is_same - { - static constexpr auto value = false; - }; - - template < typename T > - struct is_same<T, T> - { - static constexpr auto value = true; - }; - - int - test() - { - auto x = 0; - static_assert(is_same<int, decltype(f(x))>::value, ""); - static_assert(is_same<int&, decltype(g(x))>::value, ""); - return x; - } - - } - -} // namespace cxx14 - -#endif // __cplusplus >= 201402L - -]]) diff --git a/m4/ax_cxx_compile_stdcxx_11.m4 b/m4/ax_cxx_compile_stdcxx_11.m4 deleted file mode 100644 index 0aadeafe..00000000 --- a/m4/ax_cxx_compile_stdcxx_11.m4 +++ /dev/null @@ -1,39 +0,0 @@ -# ============================================================================ -# http://www.gnu.org/software/autoconf-archive/ax_cxx_compile_stdcxx_11.html -# ============================================================================ -# -# SYNOPSIS -# -# AX_CXX_COMPILE_STDCXX_11([ext|noext], [mandatory|optional]) -# -# DESCRIPTION -# -# Check for baseline language coverage in the compiler for the C++11 -# standard; if necessary, add switches to CXX and CXXCPP to enable -# support. -# -# This macro is a convenience alias for calling the AX_CXX_COMPILE_STDCXX -# macro with the version set to C++11. The two optional arguments are -# forwarded literally as the second and third argument respectively. -# Please see the documentation for the AX_CXX_COMPILE_STDCXX macro for -# more information. If you want to use this macro, you also need to -# download the ax_cxx_compile_stdcxx.m4 file. -# -# LICENSE -# -# Copyright (c) 2008 Benjamin Kosnik <bkoz@redhat.com> -# Copyright (c) 2012 Zack Weinberg <zackw@panix.com> -# Copyright (c) 2013 Roy Stogner <roystgnr@ices.utexas.edu> -# Copyright (c) 2014, 2015 Google Inc.; contributed by Alexey Sokolov <sokolov@google.com> -# Copyright (c) 2015 Paul Norman <penorman@mac.com> -# Copyright (c) 2015 Moritz Klammler <moritz@klammler.eu> -# -# Copying and distribution of this file, with or without modification, are -# permitted in any medium without royalty provided the copyright notice -# and this notice are preserved. This file is offered as-is, without any -# warranty. - -#serial 17 - -AX_REQUIRE_DEFINED([AX_CXX_COMPILE_STDCXX]) -AC_DEFUN([AX_CXX_COMPILE_STDCXX_11], [AX_CXX_COMPILE_STDCXX([11], [$1], [$2])]) diff --git a/m4/pkg.m4 b/m4/pkg.m4 deleted file mode 100644 index 452488c8..00000000 --- a/m4/pkg.m4 +++ /dev/null @@ -1,157 +0,0 @@ -# pkg.m4 - Macros to locate and utilize pkg-config. -*- Autoconf -*- -# -# Copyright © 2004 Scott James Remnant <scott@netsplit.com>. -# -# This program is free software; you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation; either version 2 of the License, or -# (at your option) any later version. -# -# This program is distributed in the hope that it will be useful, but -# WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -# General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with this program; if not, write to the Free Software -# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. -# -# As a special exception to the GNU General Public License, if you -# distribute this file as part of a program that contains a -# configuration script generated by Autoconf, you may include it under -# the same distribution terms that you use for the rest of that program. - -# PKG_PROG_PKG_CONFIG([MIN-VERSION]) -# ---------------------------------- -AC_DEFUN([PKG_PROG_PKG_CONFIG], -[m4_pattern_forbid([^_?PKG_[A-Z_]+$]) -m4_pattern_allow([^PKG_CONFIG(_PATH)?$]) -AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility])dnl -if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then - AC_PATH_TOOL([PKG_CONFIG], [pkg-config]) -fi -if test -n "$PKG_CONFIG"; then - _pkg_min_version=m4_default([$1], [0.9.0]) - AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version]) - if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then - AC_MSG_RESULT([yes]) - else - AC_MSG_RESULT([no]) - PKG_CONFIG="" - fi - -fi[]dnl -])# PKG_PROG_PKG_CONFIG - -# PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) -# -# Check to see whether a particular set of modules exists. Similar -# to PKG_CHECK_MODULES(), but does not set variables or print errors. -# -# -# Similar to PKG_CHECK_MODULES, make sure that the first instance of -# this or PKG_CHECK_MODULES is called, or make sure to call -# PKG_CHECK_EXISTS manually -# -------------------------------------------------------------- -AC_DEFUN([PKG_CHECK_EXISTS], -[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl -if test -n "$PKG_CONFIG" && \ - AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then - m4_ifval([$2], [$2], [:]) -m4_ifvaln([$3], [else - $3])dnl -fi]) - - -# _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES]) -# --------------------------------------------- -m4_define([_PKG_CONFIG], -[if test -n "$PKG_CONFIG"; then - if test -n "$$1"; then - pkg_cv_[]$1="$$1" - else - PKG_CHECK_EXISTS([$3], - [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null`], - [pkg_failed=yes]) - fi -else - pkg_failed=untried -fi[]dnl -])# _PKG_CONFIG - -# _PKG_SHORT_ERRORS_SUPPORTED -# ----------------------------- -AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED], -[AC_REQUIRE([PKG_PROG_PKG_CONFIG]) -if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then - _pkg_short_errors_supported=yes -else - _pkg_short_errors_supported=no -fi[]dnl -])# _PKG_SHORT_ERRORS_SUPPORTED - - -# PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND], -# [ACTION-IF-NOT-FOUND]) -# -# -# Note that if there is a possibility the first call to -# PKG_CHECK_MODULES might not happen, you should be sure to include an -# explicit call to PKG_PROG_PKG_CONFIG in your configure.ac -# -# -# -------------------------------------------------------------- -AC_DEFUN([PKG_CHECK_MODULES], -[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl -AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl -AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl - -pkg_failed=no -AC_MSG_CHECKING([for $1]) - -_PKG_CONFIG([$1][_CFLAGS], [cflags], [$2]) -_PKG_CONFIG([$1][_LIBS], [libs], [$2]) - -m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS -and $1[]_LIBS to avoid the need to call pkg-config. -See the pkg-config man page for more details.]) - -if test $pkg_failed = yes; then - _PKG_SHORT_ERRORS_SUPPORTED - if test $_pkg_short_errors_supported = yes; then - $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --errors-to-stdout --print-errors "$2"` - else - $1[]_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "$2"` - fi - # Put the nasty error message in config.log where it belongs - echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD - - ifelse([$4], , [AC_MSG_ERROR(dnl -[Package requirements ($2) were not met: - -$$1_PKG_ERRORS - -Consider adjusting the PKG_CONFIG_PATH environment variable if you -installed software in a non-standard prefix. - -_PKG_TEXT -])], - [AC_MSG_RESULT([no]) - $4]) -elif test $pkg_failed = untried; then - ifelse([$4], , [AC_MSG_FAILURE(dnl -[The pkg-config script could not be found or is too old. Make sure it -is in your PATH or set the PKG_CONFIG environment variable to the full -path to pkg-config. - -_PKG_TEXT - -To get pkg-config, see <http://pkg-config.freedesktop.org/>.])], - [$4]) -else - $1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS - $1[]_LIBS=$pkg_cv_[]$1[]_LIBS - AC_MSG_RESULT([yes]) - ifelse([$3], , :, [$3]) -fi[]dnl -])# PKG_CHECK_MODULES |