Use #include "alloca.h"

lib/alloca.h

@@ -0,0 +1,19 @@
+/*
+ *	BIRD Library -- Linked Lists
+ *
+ *	(c) 2004 Martin Mares <mj@ucw.cz>
+ *
+ *	Can be freely distributed and used under the terms of the GNU GPL.
+ */
+
+#ifndef _BIRD_ALLOCA_H_
+#define _BIRD_ALLOCA_H_
+
+#ifdef HAVE_ALLOCA_H
+#include <alloca.h>
+#else
+#include <stdlib.h>
+#endif
+
+
+#endif

nest/rt-attr.c

@@ -44,10 +44,7 @@
  * Routing tables always contain only cached &rta's.
  */
 
-#ifdef HAVE_ALLOCA_H
-#include <alloca.h>
-#endif
-
+#include "alloca.h"
 #include "nest/bird.h"
 #include "nest/route.h"
 #include "nest/protocol.h"

nest/rt-table.c

@@ -41,10 +41,7 @@
 #include "conf/conf.h"
 #include "filter/filter.h"
 #include "lib/string.h"
-
-#ifdef HAVE_ALLOCA_H
-#include <alloca.h>
-#endif
+#include "alloca.h"
 
 static slab *rte_slab;
 static linpool *rte_update_pool;