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Passing `-std=c++11` to CMakeLists?

I have just installed Qt Creator and am using C++11 syntax.

Unfortunately when I try to build my project I get:

/usr/include/c++/4.8/bits/c++0x_warning.h:32: error:
      #error This file requires compiler and library support for the ISO C++ 2011
             standard. This support is currently experimental, and must be
             enabled with the -std=c++11 or -std=gnu++11 compiler options.
      #error This file requires compiler and library support for the \
       ^

Then a bunch of errors like "tuple not a member of std".

My CMakeLists.txt contains:

project(routing_tests)
set(QMAKE_CXXFLAGS "-std=c++11")
cmake_minimum_required(VERSION 2.8)
aux_source_directory(. SRC_LIST)
add_executable(${PROJECT_NAME} ${SRC_LIST})

EDIT: Tiny test case showing the issue https://gist.github.com/anonymous/8171073

like image 484
A T Avatar asked Dec 29 '13 14:12

A T


1 Answers

main.cpp

#include <iostream>
#include <tuple>

int main() {
    auto foo = std::make_tuple("bar", "foo", "can");
    std::cout << std::get<0>(foo) << std::get<1>(foo) << std::get<2>(foo);
} 

CMakeLists.txt

project(tuple_tests)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
# C++14: set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++1y")
cmake_minimum_required(VERSION 2.8)
aux_source_directory(. SRC_LIST)
add_executable(${PROJECT_NAME} ${SRC_LIST})
like image 61
lpapp Avatar answered Sep 27 '22 01:09

lpapp