Symbol 'symbol1' is aliased to 'symbol2,' which is already aliased

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The linker does not support alias chains. You are restricted to a single alias hop. If you attempt to chain, the linker displays this error message indicating that a given symbol you are using as the alias target is already aliased.

Note: This error message only appears the first time you attempt to double alias a symbol. On subsequent incremental links, the error will not be detected, potentially leaving you with unresolved external messages, should you reference the second aliased symbol.