commit 14adff1cfa06a3d4d3281a9bf7848b556d84c20d
author Josh Gao <jmgao@google.com> Fri Apr 29 12:00:55 2016 -0700
committer Josh Gao <jmgao@google.com> Fri Apr 29 16:39:50 2016 -0700
tree ce1fb2867f69e49f57d0bbe8a9099b09beda0c19
parent 5a3d5cac642f9e58b2c510eab23789fb4fc3a753

Add versioning information to symbols.

Bug: http://b/28178111
Change-Id: I46bf95accd819f4521afb1173d8badcc5e9df31c

libc/include/sys/endian.h

diff --git a/libc/include/sys/endian.h b/libc/include/sys/endian.h
index 60cc030..449e0d7 100644
--- a/libc/include/sys/endian.h
+++ b/libc/include/sys/endian.h
@@ -49,10 +49,10 @@
 
 /* glibc compatibility. */
 __BEGIN_DECLS
-uint32_t htonl(uint32_t) __pure2;
-uint16_t htons(uint16_t) __pure2;
-uint32_t ntohl(uint32_t) __pure2;
-uint16_t ntohs(uint16_t) __pure2;
+uint32_t htonl(uint32_t) __pure2 __INTRODUCED_IN(21);
+uint16_t htons(uint16_t) __pure2 __INTRODUCED_IN(21);
+uint32_t ntohl(uint32_t) __pure2 __INTRODUCED_IN(21);
+uint16_t ntohs(uint16_t) __pure2 __INTRODUCED_IN(21);
 __END_DECLS
 
 #define htonl(x) __swap32(x)