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-rw-r--r--winsup/cygwin/include/netdb.h14
1 files changed, 4 insertions, 10 deletions
diff --git a/winsup/cygwin/include/netdb.h b/winsup/cygwin/include/netdb.h
index 74c205990..c9b46d3e7 100644
--- a/winsup/cygwin/include/netdb.h
+++ b/winsup/cygwin/include/netdb.h
@@ -147,16 +147,10 @@ extern __declspec(dllimport) int h_errno;
#define AI_PASSIVE 1
#define AI_CANONNAME 2
#define AI_NUMERICHOST 4
-/*
- * These are not available in the WinSock implementation. It wouldn't make
- * sense to support them in the ipv4 only case, so we drop them entirely.
- * We can define them if we run into problems but they are non-functional, so...
- */
-#if 0
-#define AI_V4MAPPED 16
-#define AI_ALL 32
-#define AI_ADDRCONFIG 64
-#endif
+/* Only available since Vista. Ignored on older systems. */
+#define AI_ALL 256
+#define AI_ADDRCONFIG 1024
+#define AI_V4MAPPED 2048
#define NI_NOFQDN 1
#define NI_NUMERICHOST 2