#if HAVE_SYS_SWAP_H
# include <sys/swap.h>
#endif
#if HAVE_SYS_SWAP_H
# include <sys/swap.h>
#endif
+#if HAVE_VM_ANON_H
+# include <vm/anon.h>
+#endif
#if HAVE_SYS_PARAM_H
# include <sys/param.h>
#endif
#if HAVE_SYS_PARAM_H
# include <sys/param.h>
#endif