diff --git a/vl.h b/vl.h
index 639b473..b640ad4 100644
--- a/vl.h
+++ b/vl.h
@@ -35,6 +35,7 @@
 #include <errno.h>
 #include <unistd.h>
 #include <fcntl.h>
+#include <sys/stat.h>
 
 #ifndef O_LARGEFILE
 #define O_LARGEFILE 0
@@ -49,6 +50,13 @@
 
 #include "cpu.h"
 
+#ifdef _BSD
+#define lseek64 lseek
+#define ftruncate64 ftruncate
+#define mkstemp64 mkstemp
+#define MAP_ANONYMOUS MAP_ANON
+#endif
+
 #ifndef glue
 #define xglue(x, y) x ## y
 #define glue(x, y) xglue(x, y)