warning: conversion from `pointer to void'

#if 0

  The following example code compiled with

    $ lcc  -c fp.c -o fp.o

  produces these warnings:

    fp.c:2: warning: conversion from `pointer to void' to `pointer to int
function(int)' is compiler dependent
    fp.c:3: warning: conversion from `pointer to void' to `pointer to int
function(int)' is compiler dependent

  I wonder if this is required or justified by the C89 or C99
  standard. (E.g. "gcc -Wall -pedantic -ansi" does not complain.)

  Olaf

#endif

#include <stdlib.h>
int (*func1)(int) = NULL;
int (*func2)(int) = (void *)0;