"Does not name a type"-Error when compile with CMake - cmake

Question

when I compile my code in Eclipse it works fine. But the process fails if I try to compile it with CMake. It says:
error: ‘default_random_engine’ does not name a type
default_random_engine generator;
error: ‘uniform_int_distribution’ does not name a type
uniform_int_distribution distribution;
and some more errors, which I believe are the consequences of these two.
class randomInt
{
private:
int m_max;
default_random_engine generator;
uniform_int_distribution<int> distribution;
public:
randomInt(int max = 0) :
m_max(max),
generator(time(0)),
distribution(0, m_max)
{}
int operator ()()
{
return distribution(generator);
}
};
int main(int argc, char **argv)
{
vector<int> vec(100);
generate(vec.begin(), vec.end(), randomInt(100));
ostream_iterator<int> streamIt(cout, ",\n");
copy(vec.begin(), vec.end(), streamIt);
return 0;
}
There is my CMakeLists.txt
project(TEST)
# States that CMake required version must be greater than 2.6
cmake_minimum_required(VERSION 2.8)
# Setup sources
set(TEST_SOURCES
aufgabe2_1.cpp
aufgabe2_2.cpp
aufgabe2_3.cpp
aufgabe2_4.cpp)
set(CMAKE_CXX_FLAGS_DEBUG "-g -Wall -std=c++11")
# Build executable
add_executable(main ${TEST_SOURCES})

Answer 1

These are symbols from the C++ standard library's pseudo-random number generation, but you haven't qualified the symbols with the namespace std, so use std::default_random_engine and std::uniform_int_distribution.