What are the correct link options to use std::thread in GCC under linux?
Hi I am trying to use std::thread
with G++. Here is my test code
#include <thread>
#include <iostream>
int main(int, char **){
std::thread tt([](){ std::cout<<"Thread!"<<std::endl; });
tt.join();
}
It compiles, but when I try to run it the result is:
terminate called after throwing an instance of 'std::system_error'
what(): Operation not permitted
Aborted
My compiler version:
$ g++ --version
g++ (Ubuntu/Linaro 4.6.1-9ubuntu3) 4.6.1
Copyright (C) 2011 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
What is wrong with my test code?
UPDATE: I use the following command line to compile and run my code.
$ g++ -std=c++0x test.cpp
$ ./a.out
and I tried
$ g++ -std=c++0x -lpthread test.cpp
$ ./a.out
still the same.
I think on Linux pthread is used to implement std::thread
so you need to specify the -pthread
compiler option.
As this is a linking option, this compiler option need to be AFTER the source files:
$ g++ -std=c++0x test.cpp -pthread
In addition to using -std=c++0x
and -pthread
you must not use -static
.
-std=c++11 -static -pthread -Wl,--whole-archive -lpthread -Wl,--no-whole-archive
works together with -static
!!!
See here: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52590#c4