make prototypes align with functions.

(Logical change 1.16)
diff --git a/include/rt_names.h b/include/rt_names.h
index 6ac2920..249231e 100644
--- a/include/rt_names.h
+++ b/include/rt_names.h
@@ -1,14 +1,16 @@
 #ifndef RT_NAMES_H_
 #define RT_NAMES_H_ 1
 
-const char* rtnl_rtprot_n2a(int id, char *buf, int len);
-const char* rtnl_rtscope_n2a(int id, char *buf, int len);
-const char* rtnl_rttable_n2a(int id, char *buf, int len);
-const char* rtnl_rtrealm_n2a(int id, char *buf, int len);
-const char* rtnl_dsfield_n2a(int id, char *buf, int len);
-int rtnl_rtprot_a2n(int *id, char *arg);
-int rtnl_rtscope_a2n(int *id, char *arg);
-int rtnl_rttable_a2n(int *id, char *arg);
+#include <asm/types.h>
+
+char* rtnl_rtprot_n2a(int id, char *buf, int len);
+char* rtnl_rtscope_n2a(int id, char *buf, int len);
+char* rtnl_rttable_n2a(int id, char *buf, int len);
+char* rtnl_rtrealm_n2a(int id, char *buf, int len);
+char* rtnl_dsfield_n2a(int id, char *buf, int len);
+int rtnl_rtprot_a2n(__u32 *id, char *arg);
+int rtnl_rtscope_a2n(__u32 *id, char *arg);
+int rtnl_rttable_a2n(__u32 *id, char *arg);
 int rtnl_rtrealm_a2n(__u32 *id, char *arg);
 int rtnl_dsfield_a2n(__u32 *id, char *arg);