--- /dev/null
+#ifdef JEMALLOC_SWAP
+/******************************************************************************/
+#ifdef JEMALLOC_H_TYPES
+
+#endif /* JEMALLOC_H_TYPES */
+/******************************************************************************/
+#ifdef JEMALLOC_H_STRUCTS
+
+#endif /* JEMALLOC_H_STRUCTS */
+/******************************************************************************/
+#ifdef JEMALLOC_H_EXTERNS
+
+extern malloc_mutex_t swap_mtx;
+extern bool swap_enabled;
+extern bool swap_prezeroed;
+extern size_t swap_nfds;
+extern int *swap_fds;
+#ifdef JEMALLOC_STATS
+extern size_t swap_avail;
+#endif
+
+void *chunk_alloc_swap(size_t size, bool *zero);
+bool chunk_in_swap(void *chunk);
+bool chunk_dealloc_swap(void *chunk, size_t size);
+bool chunk_swap_enable(const int *fds, unsigned nfds, bool prezeroed);
+bool chunk_swap_boot(void);
+
+#endif /* JEMALLOC_H_EXTERNS */
+/******************************************************************************/
+#ifdef JEMALLOC_H_INLINES
+
+#endif /* JEMALLOC_H_INLINES */
+/******************************************************************************/
+#endif /* JEMALLOC_SWAP */