I'm trying to compile the program the source for which is here. As per his instructions I'm compiling using the command
g++ -O3 -lrt netmon.cpp -o netmon. I get this output:
netmon.cpp:(.text.startup+0xb3): undefined reference to `clock_gettime' collect2: ld returned 1 exit status
This is odd as I have read that the rt library provides this function. What is going on?