From 3ffc7535ba3be6d3979f94805077ca2a9c0ea23b Mon Sep 17 00:00:00 2001
From: akr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Tue, 21 Jan 2014 13:39:08 +0000
Subject: Several more OS information for TYPE_IP_MULTICAST_LOOP and
 TYPE_IP_MULTICAST_TTL.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44678 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ext/socket/option.c | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

(limited to 'ext')

diff --git a/ext/socket/option.c b/ext/socket/option.c
index 00e6be6378..d162b6da76 100644
--- a/ext/socket/option.c
+++ b/ext/socket/option.c
@@ -7,10 +7,21 @@ VALUE rb_cSockOpt;
 #define CAT(x,y) x##y
 #define XCAT(x,y) CAT(x,y)
 
-#if defined(__linux__) || defined(__FreeBSD__) || defined(__APPLE__) || defined(_WIN32)
+#if defined(__linux__) || \
+    defined(__GNU__) /* GNU/Hurd */ || \
+    defined(__FreeBSD__) || \
+    defined(__DragonFly__) || \
+    defined(__APPLE__) || \
+    defined(_WIN32) || \
+    defined(__CYGWIN__)
 # define TYPE_IP_MULTICAST_LOOP int
 # define TYPE_IP_MULTICAST_TTL int
 #else
+/* The original IP multicast implementation by Steve Deering
+ * NetBSD
+ * OpenBSD
+ * SunOS
+ */
 # define TYPE_IP_MULTICAST_LOOP byte
 # define TYPE_IP_MULTICAST_TTL byte
 # define USE_INSPECT_BYTE 1
-- 
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