twn_loop.c: watch pack changes from pack dependencies

src/twn_loop.c

@@ -22,6 +22,9 @@
 #define PACKAGE_EXTENSION "btw"
 
 
+static void pack_contents_modified(char const *path, enum FilewatchAction action);
+
+
 static SDL_sem *opengl_load_semaphore;
 
 
@@ -308,6 +311,8 @@ static void resolve_pack_dependencies(const char *pack_name) {
             if (!PHYSFS_mount(dep_source_path, "/", true))
                 CRY("Cannot load pack", "Nothing is given to work with");
 
+            filewatch_add_directory(dep_source_path, &pack_contents_modified);
+
             log_info("Pack loaded: %s\n", dep_source.u.s);
 
             SDL_free(dep_source.u.s);