> Did I make something wrong with the store.c?
No, but the store.h file is missing some important defines apparently ; can
you insert, in store.h, just after the lines:

#ifndef WEBHTTRACK_PROXYTRACK_STORE
#define WEBHTTRACK_PROXYTRACK_STORE

the following lines:

/* Includes */
#ifndef _WIN32
#include <pthread.h>
#else
#include "windows.h"
#endif

And tell me if that's okay now ?
Thanks!