Add versioning information to symbols.
Bug: http://b/28178111
Change-Id: I46bf95accd819f4521afb1173d8badcc5e9df31c
diff --git a/libc/include/net/if.h b/libc/include/net/if.h
index aa4c19e..eac7699 100644
--- a/libc/include/net/if.h
+++ b/libc/include/net/if.h
@@ -46,8 +46,8 @@
char* if_indextoname(unsigned, char*);
unsigned if_nametoindex(const char*);
-struct if_nameindex* if_nameindex(void);
-void if_freenameindex(struct if_nameindex*);
+struct if_nameindex* if_nameindex(void) __INTRODUCED_IN(24);
+void if_freenameindex(struct if_nameindex*) __INTRODUCED_IN(24);
__END_DECLS
diff --git a/libc/include/net/if_ether.h b/libc/include/net/if_ether.h
index 6da96e4..06cceb1 100644
--- a/libc/include/net/if_ether.h
+++ b/libc/include/net/if_ether.h
@@ -205,8 +205,8 @@
*/
#include <sys/cdefs.h>
__BEGIN_DECLS
-char* ether_ntoa __P((const struct ether_addr*));
-struct ether_addr* ether_aton __P((const char*));
+char* ether_ntoa __P((const struct ether_addr*)) __INTRODUCED_IN(21);
+struct ether_addr* ether_aton __P((const char*)) __INTRODUCED_IN(21);
__END_DECLS
#endif