Thread: Undefined reference?

Alright guys, I'm teaching myself C with help from "C for dummies 9 in 1 reference guide" and I'm going through and I am stumped on one of the codes the author provided.

Code:

#include <stdio.h>
#include <stdlib.h>

int main()
{
    long int hat;
    int loop;
    long int seed;
    
    printf("Enter a seed number:");
    scanf("%d",&seed);
    srandom(seed);
    
    
    for(loop=0;loop<100;loop++)
    {
        hat = rand();
    printf("%5d is a truly random number!\n",hat);
    }
    return(0);
}

That is the code that I have typed into Dev-C++ and it's saved as a ".c" but when I compile I get the following errors:

[Linker error] undefined reference to `random'
[Linker error] undefined reference to `srandom'

So my question is why does it pull up this error? How do I go about fixing it? Also why does dev-c++ not like the "random();" function, which is I used "rand();"?

~Tirith