diff --git a/mm-internal.h b/mm-internal.h
new file mode 100644
index 00000000..52a6fa5b
--- /dev/null
+++ b/mm-internal.h
@@ -0,0 +1,22 @@
+
+#ifndef _EVENT_MM_INTERNAL_H
+#define _EVENT_MM_INTERNAL_H
+
+#include <sys/types.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Internal use only: Memory allocation functions. */
+void *event_malloc(size_t sz);
+void *event_calloc(size_t count, size_t size);
+char *event_strdup(const char *s);
+void *event_realloc(void *p, size_t sz);
+void event_free(void *p);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif