I need some help fixing these error , they are driving me crazy the program is in C, and has these errors

------what program should do----

Option-B (10 pts): Write a Pthreads program 'Dining-Philosophers.c' to implement the classical 'Dining-Philosophers' problem by using Pthreads mutex locks and condition variables. To implement the program, please follow the hints below.

(a) The detailed 'Dining-Philosophers' problem statement: Refer to Page 71 ~ Page 72 in 'Lecture-08.pptx'

(b) The introduction to Pthreads mutex locks and condition variables: Refer to Page 17 ~ Page 39 in 'Lecture-08.pptx'

(c) Creating five philosophers, each of which will run as a separate thread. Philosophers alternate between thinking and eating:

The activities of thinking and eating can be simulated by having the thread sleep for a random period between one and three seconds.

When a philosopher wishes to eat, he/she invokes the function: Pickup_Forks (int Philosopher_ID)

When a philosopher finishes eating, he/she invokes the function: Return_Forks (int Philosopher_ID)

There are many possible output sequences. Here is one possible output sequence.

Note: I place the output sequence into two columns, actually the five on the left column should be placed before the rest five on the right column.

./Dining-Philosophers

Philosopher 0 is eating	Philosopher 1 is eating
Philosopher 2 is eating	Philosopher 1 is thinking
Philosopher 2 is thinking	Philosopher 3 is thinking
Philosopher 3 is eating	Philosopher 4 is eating
Philosopher 0 is thinking	Philosopher 4 is thinking

-----------errors ------- prog.c: In function 'main': prog.c:53:54: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] pthread_create( &philosophers[i], NULL, philosopher, (void*)i); ^ prog.c:53:41: warning: passing argument 3 of 'pthread_create' from incompatible pointer type [-Wincompatible-pointer-types] pthread_create( &philosophers[i], NULL, philosopher, (void*)i); ^ In file included from prog.c:2:0: /usr/include/pthread.h:233:12: note: expected 'void * (*)(void *)' but argument is of type 'void (*)(int)' extern int pthread_create (pthread_t *__restrict __newthread, ^ /tmp/ccwnzH68.o: In function `main': 53b5b6a8283c35b36cc9c164e53d178e.c:(.text+0x23d): undefined reference to `pthread_create' 53b5b6a8283c35b36cc9c164e53d178e.c:(.text+0x26a): undefined reference to `pthread_join' collect2: error: ld returned 1 exit status

----------- code below---------

#include #include #include #include #define NO_OF_PHILOSOPHERS 5 pthread_t philosophers[NO_OF_PHILOSOPHERS]; pthread_mutex_t mutex_forks = PTHREAD_MUTEX_INITIALIZER;; int forks[NO_OF_PHILOSOPHERS]; void init() { int i; for(i=0; i