Compiler is complaining strdup is not found on Xcode 16

[chrisbnyc]

Hi,

I know this code hasn't been updated in a while but I just ran across an issue trying to use the swift package in Xcode 16 and iOS 18. Due to what I believe is stricter requirements for the compiler, it now complains that strdup is not found (because the header is not included).

I think it's a simple fix inside the package but I can't modify that myself. If there is a workaround in Xcode ( a bridging header was suggested but it doesn't work with packages) that would be OK too!

Thanks for any assistance you can provide with this.

[gregorosaurus]

I ended up having to just include the source. I changed the function to this:

extension H3Index: CustomStringConvertible {

    /// String description of the index
    public var description: String {
        let cString = UnsafeMutablePointer<Int8>.allocate(capacity: 17)
        h3ToString(value, cString, 17)
        return String(cString: cString)
    }

}