Ok guys, here the new one.
What's the problem now?

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#define EXPORT
#include "ibase.h"
#include <stdio.h>
#include <stdlib.h>

int EXPORT extapp (char *data, char *test, char *results){
char params[255];
sprintf(params,"./extract -f %s -t %s > %s", data, test, results);
system(params);
return 0;
}

DECLARE EXTERNAL FUNCTION F_EXTAPP
CSTRING(85), CSTRING(85), CSTRING(85)
RETURNS Integer
ENTRY_POINT 'extapp'
MODULE_NAME 'udfapp.so';


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