Ошибка в функции, возвращающей указатель на структуру...

//backend.c

#include "backend.h"
#include "const.h"


Node*
parse_file(gchar *filepath){
	return NULL;
}
...

//backend.h

Node* parse_file(gchar*);
...

//const.h

typedef enum{
	INPUT = 		1 << 0,
	OUTPUT = 	1 << 1,
	ASSIGN = 	1 << 2,
	WHILELOOP =       1 << 3,
	IFCOND = 	1 << 4,
	FORLOOP = 	1 << 5,
	OTHER = 	1 << 6
} BLOCKTYPE;


typedef struct node{
	BLOCKTYPE type;
	char data[20];
	
	struct node *block_above;
	struct node *block_below;
	struct node *block_temp;
} Node;

cc -Wall -g -c backend.c
In file included from backend.c:1:
backend.h:3: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘*’ token
backend.c:6: error: expected ‘)’ before ‘*’ token