Simple Struct definition in C for Red Black Tree

I don't use the C language since years and now I need it again. I'm trying to build a Red-Black Tree but I'm stuck at the beginning because I'm missing something about "structs".

Take a look to my "structs" declarations please, they are easy. This is a header file included in Red_black_tree.c

 #define BLACK 0 //defalut color
#define RED 1 //

struct Node {  //create a black node by default, to have a red one look at "create_red_node"
    struct Node *left = NULL;
    struct Node *right= NULL;
    int key = 0;
    int value = 0;
    char color = BLACK;
};

struct Root_t {
    struct Node* Root;
};

struct Node* create_node () {
    struct Node* black = (Node*) malloc (sizeof(Node));
    return black;
}

struct Node* create_red_node () {
    struct Node* red = create_node ();
    red->color=RED;
    return red;
}

Root_t* create_tree () {
    struct Root_t* fake=(Root_t*) malloc (sizeof(Root_t));
    struct fake->Root->left=create_red_node ();
    struct fake->Root->right=create_red_node ();
    return fake;
}

I compiled with "gcc Red_black_tree.c -o RBTree". GCC says something like : "expected ';' at end of declaration list" 7 times, or "must use 'struct' tag to refer to type... ", "expected identifier...". What do you think, is it good to create RBTree?