#include <stdio.h>
#define MAXLINE 1000

int main()
{
        char line[];
        line = getline();
        printf(line);

        return 1;
}

int getline(void)
{
        int c, i;
        extern char line[];

        for (i = 0; i < MAXLINE-1 && (c=getchar()) != EOF && c !='\n'; ++i)
        {
                line[i] = c;
        }
        if (c == '\n')
        {
                line[i] = c;
                ++i;
        }
        line[i] = '\0';
        return i;
}
=========================================================
error:
~/programming/c $ gcc input.c
input.c: In function 'main':
input.c:6: error: array size missing in 'line'
input.c:7: error: incompatible types in assignment