Add versioning information to symbols.
Bug: http://b/28178111
Change-Id: I46bf95accd819f4521afb1173d8badcc5e9df31c
diff --git a/libc/include/bits/strcasecmp.h b/libc/include/bits/strcasecmp.h
index 124f5cd..7cb713e 100644
--- a/libc/include/bits/strcasecmp.h
+++ b/libc/include/bits/strcasecmp.h
@@ -36,9 +36,9 @@
__BEGIN_DECLS
int strcasecmp(const char*, const char*) __purefunc;
-int strcasecmp_l(const char*, const char*, locale_t) __purefunc;
+int strcasecmp_l(const char*, const char*, locale_t) __purefunc __INTRODUCED_IN(23);
int strncasecmp(const char*, const char*, size_t) __purefunc;
-int strncasecmp_l(const char*, const char*, size_t, locale_t) __purefunc;
+int strncasecmp_l(const char*, const char*, size_t, locale_t) __purefunc __INTRODUCED_IN(23);
__END_DECLS