Ricard Wanderlof writes:

The following definitions in getaddrinfo.c seem redundant as they _are_
defined in the public netdb.h header, contrary to the comment. AI_DEFAULT
is not, however it is not used in the file either so can be safely
removed.

libc/inet/getaddrinfo.c

@@ -90,15 +90,6 @@ libc_hidden_proto(__h_errno_location)
 libc_hidden_proto(in6addr_loopback)
 #endif
 
-/* The following declarations and definitions have been removed from
- *    the public header since we don't want people to use them.  */
-#define AI_V4MAPPED     0x0008  /* IPv4-mapped addresses are acceptable.  */
-#define AI_ALL          0x0010  /* Return both IPv4 and IPv6 addresses.  */
-#define AI_ADDRCONFIG   0x0020  /* Use configuration of this host to choose 
-				    returned address type.  */
-#define AI_DEFAULT    (AI_V4MAPPED | AI_ADDRCONFIG)
-
-
 #define GAIH_OKIFUNSPEC 0x0100
 #define GAIH_EAI        ~(GAIH_OKIFUNSPEC)