device is not enable IPv6, why?

[masteage]

i386 , x86_64 is "checking whether to enable IPv6... yes"
armv7 , arm64 is "checking whether to enable IPv6... no"

[masteage]

solution is - "DEFAULT_PROTOCOLS" add "ipv6" => true

[reasten]

I have done exactly you told me to do. STILL DOES'NT WORK!!! In the file "./lib/curl_builder.rb", I set "DEFAULT_PROTOCOLS" "ipv6" => true. Under IPV6 environments, features=829d(the lowest bit is 1, meaning ipv6 is set to 1) while running on simulators ;features=829c,(the lowest bit is 0, meaning ipv6 is set to 0) while running on iphone device. curl return error. Please help!!!