getrandom syscall in C not found

Question

The problem was resolved by upgrading the C library.

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I would like to use the syscall getrandom (http://man7.org/linux/man-pages/man2/getrandom.2.html)

Answer 1

So, it seems that getrandom is not a function, just a syscall.

Hence this is needed:

/* Note that this define is required for syscalls to work. */
#define _GNU_SOURCE

#include 
#include 
#include 

int main(int arg, char *argv[])
{
        void *buf = NULL;
        size_t l = 5;
        unsigned int o = 1;
        int r = syscall(SYS_getrandom, buf, l, o);
        return 0;
}