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-rw-r--r--ext/socket/mkconstants.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/ext/socket/mkconstants.rb b/ext/socket/mkconstants.rb
index 3074a8ff8d..6df8fbeaf9 100644
--- a/ext/socket/mkconstants.rb
+++ b/ext/socket/mkconstants.rb
@@ -56,7 +56,7 @@ def each_const
make_value = "INT2NUM"
end
guard = nil
- if /\A(AF_INET6|PF_INET6)\z/ =~ name
+ if /\A(AF_INET6|PF_INET6|IPV6_.*)\z/ =~ name
# IPv6 is not supported although AF_INET6 is defined on bcc32/mingw
guard = "defined(INET6)"
end