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configure: require c++14 compatible compiler

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This commit is contained in:
Andrzej Rybczak
2016-11-13 11:04:23 +01:00
parent 40163dedaa
commit 41317d31c8
29 changed files with 549 additions and 591 deletions
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67
configure.ac
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@@ -28,70 +28,27 @@ if test "$clock" = "yes"; then
fi
dnl ================================
dnl = checking for -std=c++0x flag =
dnl = checking for -std=c++14 flag =
dnl ================================
AC_MSG_CHECKING([whether compiler supports -std=c++0x])
AC_MSG_CHECKING([whether compiler supports -std=c++14])
old_CXXFLAGS="$CXXFLAGS"
CXXFLAGS="-std=c++0x"
CXXFLAGS="-std=c++14"
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ ]])],
AC_MSG_RESULT([yes])
std_cpp0x="-std=c++0x",
std_cpp14="-std=c++14",
AC_MSG_RESULT([no])
AC_MSG_ERROR([[Your compiler doesn't seem to support C++0x, please upgrade (GCC >= 4.6)]])
AC_MSG_ERROR([[Your compiler doesn't seem to support C++14, please upgrade (GCC >= 5)]])
)
CXXFLAGS="$old_CXXFLAGS $std_cpp0x"
CXXFLAGS="$old_CXXFLAGS $std_cpp14"
dnl ==========================================
dnl = checking for initializer lists support =
dnl ==========================================
AC_MSG_CHECKING([whether compiler supports initializer lists])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <vector>], [[std::vector<int> test = { 1, 2, 3 }; test.push_back(4);]])],
dnl ===================================================
dnl = checking for generic lambda expressions support =
dnl ===================================================
AC_MSG_CHECKING([whether compiler supports generic lambda expressions])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [[auto f = [](auto n) { return n*n; }; f(7);]])],
AC_MSG_RESULT([yes]),
AC_MSG_RESULT([no])
AC_MSG_ERROR([[Your compiler doesn't seem to support initializer lists, please upgrade (GCC >= 4.6)]])
)
dnl =====================================
dnl = checking for auto keyword support =
dnl =====================================
AC_MSG_CHECKING([whether compiler supports auto keyword])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [[auto test = new int; *test = 1;]])],
AC_MSG_RESULT([yes]),
AC_MSG_RESULT([no])
AC_MSG_ERROR([[Your compiler doesn't seem to support auto keyword, please upgrade (GCC >= 4.6)]])
)
dnl =========================================
dnl = checking for lambda functions support =
dnl =========================================
AC_MSG_CHECKING([whether compiler supports lambda functions])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <functional>], [[int a = 5; std::function<int(int)> f = [&a](int b) { return a + b; }; f(8);]])],
AC_MSG_RESULT([yes]),
AC_MSG_RESULT([no])
AC_MSG_ERROR([[Your compiler doesn't seem to support lambda functions, please upgrade (GCC >= 4.6)]])
)
dnl ================================================================
dnl = checking whether calling derived member function of object =
dnl = passed to lambda without explicit 'this' usage works =
dnl ================================================================
AC_MSG_CHECKING([whether calling derived member function passed to lambda without explicit this usage works ])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <functional>], [[struct A { void foo() { } }; struct B : public A { void bar() { std::function<void()> f = [this]() { foo(); }; f(); } } foo; foo.bar();]])],
AC_MSG_RESULT([yes]),
AC_MSG_RESULT([no])
AC_MSG_ERROR([[Your compiler doesn't seem to support calling derived member function of an object passed to lambda as 'this' without explicit 'this' usage, please upgrade (GCC >= 4.6)]])
)
dnl =========================================
dnl = checking for override keyword support =
dnl =========================================
AH_TEMPLATE([OVERRIDE], [override keyword used in C++11])
AC_MSG_CHECKING([whether compiler supports override keyword])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[struct A { virtual void foo() { } }; struct B : public A { virtual void foo() override { } };]], [])],
AC_MSG_RESULT([yes])
AC_DEFINE([OVERRIDE], [override]),
AC_MSG_RESULT([no])
AC_DEFINE([OVERRIDE], []),
AC_MSG_ERROR([[Your compiler doesn't seem to support generic lambda expressions, please upgrade (GCC >= 5)]])
)
dnl =============================