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Changes between Initial Version and Version 1 of Ticket #70620, comment 3

initial	v1
6	6	}}}
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8		It's due to the fact that on systems older than macOS 10.15 there is no version of Qt 6 that will work and thus {{{ ${qt6::available_versions} ~~}}} is~~ empty and making an array and extracting a value doesn't work. Unfortunately, I cannot reproduce/troubleshoot this easily since I don't have an macOS version where this issue manifests itself and my Tcl knowledge isn't sufficient to easily see how/where to resolve this. So I don't think I'll make progress on this anytime soon - fortunately it isn't a fatal issue; the port just doesn't parse for you but it would never install anything on these old systems anyway.
	8	It's due to the fact that on systems older than macOS 10.15 there is no version of Qt 6 that will work and thus {{{ ${qt6::available_versions}}}} is probably empty and making an array and extracting a value doesn't work. Unfortunately, I cannot reproduce/troubleshoot this easily since I don't have an macOS version where this issue manifests itself and my Tcl knowledge isn't sufficient to easily see how/where to resolve this. So I don't think I'll make progress on this anytime soon - fortunately it isn't a fatal issue; the port just doesn't parse for you but it would never install anything on these old systems anyway.