Undefined reference to pthread_create in Linux

Question

I picked up the following demo off the web from https://computing.llnl.gov/tutorials/pthreads/

#include 
#include 
#define NU         


        

Answer 1

If you are using cmake, you can use:

add_compile_options(-pthread)

Or

SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -pthread")