Added missing includes.

nest/password.c

@@ -8,6 +8,7 @@
 
 #include "nest/bird.h"
 #include "nest/password.h"
+#include "lib/string.h"
 
 struct password_item *last_password_item = NULL;
 

nest/rt-table.c

@@ -42,6 +42,8 @@
 #include "filter/filter.h"
 #include "lib/string.h"
 
+#include <alloca.h>
+
 static slab *rte_slab;
 static linpool *rte_update_pool;
 

proto/bgp/bgp.c

@@ -63,6 +63,7 @@
 #include "conf/conf.h"
 #include "lib/socket.h"
 #include "lib/resource.h"
+#include "lib/string.h"
 
 #include "bgp.h"
 

sysdep/unix/krt.c

@@ -48,6 +48,7 @@
 #include "nest/protocol.h"
 #include "lib/timer.h"
 #include "conf/conf.h"
+#include "lib/string.h"
 
 #include "unix.h"
 #include "krt.h"