mirror of
https://gitlab.com/mbunkus/mkvtoolnix.git
synced 2024-12-28 13:57:22 +00:00
422 lines
11 KiB
Plaintext
422 lines
11 KiB
Plaintext
AC_DEFUN([AX_CXX_STD_CXX_FLAG],[
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AC_CACHE_CHECK([for support for the "-std=c++14" flag], [ax_cv_std_cxx_flag],[
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AC_LANG_PUSH(C++)
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CXXFLAGS_SAVED="$CXXFLAGS"
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for flag in gnu++14 c++14 gnu++11 c++11 c++0x; do
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CXXFLAGS="$CXXFLAGS_SAVED -std=$flag"
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AC_TRY_COMPILE([], [true;], [ax_cv_std_cxx_flag="-std=$flag"], [ax_cv_std_cxx_flag="undecided"])
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if test x"$ax_cv_std_cxx_flag" != xundecided ; then
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break
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fi
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done
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if test x"$ax_cv_std_cxx_flag" = xundecided ; then
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ax_cv_std_cxx_flag="no"
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fi
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AC_LANG_POP
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CXXFLAGS="$CXXFLAGS_SAVED"
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])
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STD_CXX=""
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if test x"$ax_cv_std_cxx_flag" != xno ; then
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STD_CXX=$ax_cv_std_cxx_flag
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fi
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AC_SUBST(STD_CXX)
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])
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AC_DEFUN([AX_CXX11_INITIALIZER_LISTS],[
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AC_CACHE_CHECK([for support for C++11 feature "initializer lists"], [ax_cv_cxx11_initializer_lists],[
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CXXFLAGS_SAVED=$CXXFLAGS
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CXXFLAGS="$CXXFLAGS $STD_CXX"
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export CXXFLAGS
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AC_LANG_PUSH(C++)
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AC_TRY_COMPILE(
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[
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#include <string>
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#include <vector>
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],
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[std::vector<std::string> listy = { "asd", "qwe", "123" };],
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[ax_cv_cxx11_initializer_lists="yes"],
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[ax_cv_cxx11_initializer_lists="no"])
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AC_LANG_POP
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CXXFLAGS="$CXXFLAGS_SAVED"
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])
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if ! test x"$ax_cv_cxx11_initializer_lists" = xyes ; then
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missing_cxx_features="$missing_cxx_features\n * initializer lists (C++11)"
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fi
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])
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AC_DEFUN([AX_CXX11_RANGE_BASED_FOR],[
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AC_CACHE_CHECK([for support for C++11 feature "range-based 'for'"], [ax_cv_cxx11_range_based_for],[
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CXXFLAGS_SAVED=$CXXFLAGS
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CXXFLAGS="$CXXFLAGS $STD_CXX"
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export CXXFLAGS
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AC_LANG_PUSH(C++)
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AC_TRY_COMPILE(
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[
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#include <string>
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#include <vector>
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],[
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std::string total;
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std::vector<std::string> listy = { "asd", "qwe", "123" };
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for (std::string &s : listy)
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total += s;
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],
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[ax_cv_cxx11_range_based_for="yes"],
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[ax_cv_cxx11_range_based_for="no"])
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AC_LANG_POP
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CXXFLAGS="$CXXFLAGS_SAVED"
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])
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if ! test x"$ax_cv_cxx11_range_based_for" = xyes ; then
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missing_cxx_features="$missing_cxx_features\n * range-based 'for' (C++11)"
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fi
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])
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AC_DEFUN([AX_CXX11_RIGHT_ANGLE_BRACKETS],[
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AC_CACHE_CHECK([for support for C++11 feature "right angle brackets"], [ax_cv_cxx11_right_angle_brackets],[
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CXXFLAGS_SAVED=$CXXFLAGS
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CXXFLAGS="$CXXFLAGS $STD_CXX"
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export CXXFLAGS
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AC_LANG_PUSH(C++)
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AC_TRY_COMPILE(
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[
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#include <map>
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#include <vector>
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typedef std::map<int, std::vector<int>> unicorn;
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],
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[unicorn charlie;],
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[ax_cv_cxx11_right_angle_brackets="yes"],
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[ax_cv_cxx11_right_angle_brackets="no"])
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AC_LANG_POP
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CXXFLAGS="$CXXFLAGS_SAVED"
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])
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if ! test x"$ax_cv_cxx11_right_angle_brackets" = xyes ; then
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missing_cxx_features="$missing_cxx_features\n * right angle brackets (C++11)"
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fi
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])
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AC_DEFUN([AX_CXX11_AUTO_KEYWORD],[
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AC_CACHE_CHECK([for support for C++11 feature "'auto' keyword"], [ax_cv_cxx11_auto_keyword],[
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CXXFLAGS_SAVED=$CXXFLAGS
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CXXFLAGS="$CXXFLAGS $STD_CXX"
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export CXXFLAGS
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AC_LANG_PUSH(C++)
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AC_TRY_COMPILE(
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[
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#include <vector>
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],[
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std::vector<unsigned int> listy;
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unsigned int sum = 0;
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for (auto i = listy.begin(); i < listy.end(); i++)
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sum += *i;
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],
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[ax_cv_cxx11_auto_keyword="yes"],
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[ax_cv_cxx11_auto_keyword="no"])
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AC_LANG_POP
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CXXFLAGS="$CXXFLAGS_SAVED"
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])
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if ! test x"$ax_cv_cxx11_auto_keyword" = xyes ; then
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missing_cxx_features="$missing_cxx_features\n * 'auto' keyword (C++11)"
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fi
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])
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AC_DEFUN([AX_CXX11_LAMBDA_FUNCTIONS],[
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AC_CACHE_CHECK([for support for C++11 feature "lambda functions"], [ax_cv_cxx11_lambda_functions],[
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CXXFLAGS_SAVED=$CXXFLAGS
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CXXFLAGS="$CXXFLAGS $STD_CXX"
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export CXXFLAGS
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AC_LANG_PUSH(C++)
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AC_TRY_COMPILE(
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[
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#include <algorithm>
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#include <vector>
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],
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[
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std::vector<unsigned int> listy;
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unsigned int sum = 0;
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std::for_each(listy.begin(), listy.end(), [&](unsigned int i) { sum += i; });
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],
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[ax_cv_cxx11_lambda_functions="yes"],
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[ax_cv_cxx11_lambda_functions="no"])
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AC_LANG_POP
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CXXFLAGS="$CXXFLAGS_SAVED"
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])
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if ! test x"$ax_cv_cxx11_lambda_functions" = xyes ; then
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missing_cxx_features="$missing_cxx_features\n * lambda functions (C++11)"
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fi
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])
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AC_DEFUN([AX_CXX11_NULLPTR],[
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AC_CACHE_CHECK([for support for C++11 feature "nullptr"], [ax_cv_cxx11_nullptr],[
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CXXFLAGS_SAVED=$CXXFLAGS
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CXXFLAGS="$CXXFLAGS $STD_CXX"
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export CXXFLAGS
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AC_LANG_PUSH(C++)
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AC_TRY_COMPILE(
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[],
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[unsigned char const *charlie = nullptr;],
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[ax_cv_cxx11_nullptr="yes"],
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[ax_cv_cxx11_nullptr="no"])
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AC_LANG_POP
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CXXFLAGS="$CXXFLAGS_SAVED"
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])
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if ! test x"$ax_cv_cxx11_nullptr" = xyes ; then
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missing_cxx_features="$missing_cxx_features\n * nullptr (C++11)"
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fi
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])
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AC_DEFUN([AX_CXX11_TUPLES],[
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AC_CACHE_CHECK([for support for C++11 feature "tuples"], [ax_cv_cxx11_tuples],[
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CXXFLAGS_SAVED=$CXXFLAGS
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CXXFLAGS="$CXXFLAGS $STD_CXX"
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export CXXFLAGS
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AC_LANG_PUSH(C++)
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AC_TRY_COMPILE(
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[#include <tuple>],
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[
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std::tuple<int, int, char> t = std::make_tuple(1, 2, 'c');
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std::get<2>(t) += std::get<0>(t) * std::get<1>(t);
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],
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[ax_cv_cxx11_tuples="yes"],
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[ax_cv_cxx11_tuples="no"])
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AC_LANG_POP
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CXXFLAGS="$CXXFLAGS_SAVED"
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])
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if ! test x"$ax_cv_cxx11_tuples" = xyes ; then
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missing_cxx_features="$missing_cxx_features\n * tuples (C++11)"
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fi
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])
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AC_DEFUN([AX_CXX11_ALIAS_DECLARATIONS],[
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AC_CACHE_CHECK([for support for C++11 feature "alias declarations"], [ax_cv_cxx11_alias_declarations],[
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CXXFLAGS_SAVED=$CXXFLAGS
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CXXFLAGS="$CXXFLAGS $STD_CXX"
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export CXXFLAGS
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AC_LANG_PUSH(C++)
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AC_TRY_COMPILE(
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[
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#include <vector>
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using thingy = std::vector<int>;
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],[
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thingy things;
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things.push_back(42);
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],
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[ax_cv_cxx11_alias_declarations="yes"],
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[ax_cv_cxx11_alias_declarations="no"])
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AC_LANG_POP
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CXXFLAGS="$CXXFLAGS_SAVED"
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])
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if ! test x"$ax_cv_cxx11_alias_declarations" = xyes ; then
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missing_cxx_features="$missing_cxx_features\n * alias declarations (C++11)"
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fi
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])
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AC_DEFUN([AX_CXX14_MAKE_UNIQUE],[
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AC_CACHE_CHECK([for support for C++14 feature "std::make_unique"], [ax_cv_cxx14_make_unique],[
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CXXFLAGS_SAVED=$CXXFLAGS
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CXXFLAGS="$CXXFLAGS $STD_CXX"
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export CXXFLAGS
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AC_LANG_PUSH(C++)
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AC_TRY_COMPILE(
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[#include <memory>],
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[auto i_ptr{std::make_unique<int>(42)};],
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[ax_cv_cxx14_make_unique="yes"],
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[ax_cv_cxx14_make_unique="no"])
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AC_LANG_POP
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CXXFLAGS="$CXXFLAGS_SAVED"
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])
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if ! test x"$ax_cv_cxx14_make_unique" = xyes ; then
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missing_cxx_features="$missing_cxx_features\n * std::make_unique function (C++14)"
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fi
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])
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AC_DEFUN([AX_CXX14_DIGIT_SEPARATORS],[
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AC_CACHE_CHECK([for support for C++14 feature "digit separators"], [ax_cv_cxx14_digit_separators],[
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CXXFLAGS_SAVED=$CXXFLAGS
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CXXFLAGS="$CXXFLAGS $STD_CXX"
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export CXXFLAGS
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AC_LANG_PUSH(C++)
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AC_TRY_COMPILE(
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[],
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[auto num = 10'000'000'000ll;],
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[ax_cv_cxx14_digit_separators="yes"],
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[ax_cv_cxx14_digit_separators="no"])
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AC_LANG_POP
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CXXFLAGS="$CXXFLAGS_SAVED"
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])
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if ! test x"$ax_cv_cxx14_digit_separators" = xyes ; then
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missing_cxx_features="$missing_cxx_features\n * digit separators (C++14)"
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fi
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])
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AC_DEFUN([AX_CXX14_BINARY_LITERALS],[
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AC_CACHE_CHECK([for support for C++14 feature "binary literals"], [ax_cv_cxx14_binary_literals],[
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CXXFLAGS_SAVED=$CXXFLAGS
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CXXFLAGS="$CXXFLAGS $STD_CXX"
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export CXXFLAGS
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AC_LANG_PUSH(C++)
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AC_TRY_COMPILE(
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[],
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[auto num1 = 0b00101010;
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auto num2 = 0B00101010;
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auto num3 = 0b0010'1010;],
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[ax_cv_cxx14_binary_literals="yes"],
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[ax_cv_cxx14_binary_literals="no"])
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AC_LANG_POP
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CXXFLAGS="$CXXFLAGS_SAVED"
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])
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if ! test x"$ax_cv_cxx14_binary_literals" = xyes ; then
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missing_cxx_features="$missing_cxx_features\n * binary literals (C++14)"
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fi
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])
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AC_DEFUN([AX_CXX14_GENERIC_LAMBDAS],[
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AC_CACHE_CHECK([for support for C++14 feature "generic lambdas"], [ax_cv_cxx14_generic_lambdas],[
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CXXFLAGS_SAVED=$CXXFLAGS
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CXXFLAGS="$CXXFLAGS $STD_CXX"
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export CXXFLAGS
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AC_LANG_PUSH(C++)
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AC_TRY_COMPILE(
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[
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#include <algorithm>
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#include <vector>
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],
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[
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std::vector<int> vv;
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std::sort(vv.begin(), vv.end(), [](auto &a, auto &b) { return b < a; });
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],
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[ax_cv_cxx14_generic_lambdas="yes"],
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[ax_cv_cxx14_generic_lambdas="no"])
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AC_LANG_POP
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CXXFLAGS="$CXXFLAGS_SAVED"
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])
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if ! test x"$ax_cv_cxx14_generic_lambdas" = xyes ; then
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missing_cxx_features="$missing_cxx_features\n * generic lambdas (C++14)"
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fi
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])
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AC_DEFUN([AX_CXX14_USER_DEFINED_LITERALS_FOR_STD_STRING],[
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AC_CACHE_CHECK([for support for C++14 feature "User-defined literals for std::string"], [ax_cv_cxx14_user_defined_literals_for_std_string],[
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CXXFLAGS_SAVED=$CXXFLAGS
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CXXFLAGS="$CXXFLAGS $STD_CXX"
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export CXXFLAGS
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AC_LANG_PUSH(C++)
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AC_TRY_COMPILE(
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[
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#include <string>
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using namespace std::string_literals;
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],
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[return "hello"s.length();],
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[ax_cv_cxx14_user_defined_literals_for_std_string="yes"],
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[ax_cv_cxx14_user_defined_literals_for_std_string="no"])
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AC_LANG_POP
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CXXFLAGS="$CXXFLAGS_SAVED"
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])
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if ! test x"$ax_cv_cxx14_user_defined_literals_for_std_string" = xyes ; then
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missing_cxx_features="$missing_cxx_features\n * User-defined literals for std::string (C++14)"
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fi
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])
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dnl AC_DEFUN([AX_CXX14_DEF_NAME],[
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dnl AC_CACHE_CHECK([for support for C++14 feature "human"], [ax_cv_cxx14_def_name],[
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dnl
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dnl CXXFLAGS_SAVED=$CXXFLAGS
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dnl CXXFLAGS="$CXXFLAGS $STD_CXX"
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dnl export CXXFLAGS
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dnl
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dnl AC_LANG_PUSH(C++)
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dnl AC_TRY_COMPILE(
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dnl [],
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dnl [],
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dnl [ax_cv_cxx14_def_name="yes"],
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dnl [ax_cv_cxx14_def_name="no"])
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dnl AC_LANG_POP
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dnl
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dnl CXXFLAGS="$CXXFLAGS_SAVED"
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dnl ])
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dnl
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dnl if ! test x"$ax_cv_cxx14_def_name" = xyes ; then
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dnl missing_cxx_features="$missing_cxx_features\n * human (C++14)"
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dnl fi
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dnl ])
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AX_CXX_STD_CXX_FLAG
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AX_CXX11_INITIALIZER_LISTS
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AX_CXX11_RANGE_BASED_FOR
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AX_CXX11_RIGHT_ANGLE_BRACKETS
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AX_CXX11_AUTO_KEYWORD
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AX_CXX11_LAMBDA_FUNCTIONS
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AX_CXX11_NULLPTR
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AX_CXX11_TUPLES
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AX_CXX11_ALIAS_DECLARATIONS
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AX_CXX14_MAKE_UNIQUE
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AX_CXX14_DIGIT_SEPARATORS
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AX_CXX14_BINARY_LITERALS
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AX_CXX14_GENERIC_LAMBDAS
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AX_CXX14_USER_DEFINED_LITERALS_FOR_STD_STRING
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if test x"$missing_cxx_features" != x ; then
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printf "The following features of the C++11/C++14 standards are not supported by $CXX:$missing_cxx_features\n"
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printf "If you are using the GNU C compiler collection (gcc), you need\n"
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printf "at least v5.x; for clang the 3.4 and newer should work.\n"
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AC_MSG_ERROR([support for required C++11/C++14 features incomplete])
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fi
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