Properly link flecs library

engine/libs/flecs/src/iter.h

@@ -0,0 +1,53 @@
+/**
+ * @file iter.h
+ * @brief Iterator utilities.
+ */
+
+#ifndef FLECS_ITER_H
+#define FLECS_ITER_H
+
+void flecs_iter_init(
+    const ecs_world_t *world,
+    ecs_iter_t *it,
+    ecs_flags8_t fields);
+
+void flecs_iter_validate(
+    ecs_iter_t *it);
+
+void flecs_iter_populate_data(
+    ecs_world_t *world,
+    ecs_iter_t *it,
+    ecs_table_t *table,
+    int32_t offset,
+    int32_t count,
+    void **ptrs);
+
+bool flecs_iter_next_row(
+    ecs_iter_t *it);
+
+bool flecs_iter_next_instanced(
+    ecs_iter_t *it,
+    bool result);
+
+void* flecs_iter_calloc(
+    ecs_iter_t *it,
+    ecs_size_t size,
+    ecs_size_t align);
+
+#define flecs_iter_calloc_t(it, T)\
+    flecs_iter_calloc(it, ECS_SIZEOF(T), ECS_ALIGNOF(T))
+
+#define flecs_iter_calloc_n(it, T, count)\
+    flecs_iter_calloc(it, ECS_SIZEOF(T) * count, ECS_ALIGNOF(T))
+
+void flecs_iter_free(
+    void *ptr,
+    ecs_size_t size);
+
+#define flecs_iter_free_t(ptr, T)\
+    flecs_iter_free(ptr, ECS_SIZEOF(T))
+
+#define flecs_iter_free_n(ptr, T, count)\
+    flecs_iter_free(ptr, ECS_SIZEOF(T) * count)
+
+#endif