Correct, Eagle does NOT use the DLR. In theory, it should be possible to port it to iOS. There are a couple platform-specific portions of code; however, they

Correct, Eagle does NOT use the DLR. In theory, it should be possible to port it to iOS. There are a couple platform-specific portions of code; however, they are all optional and can be easily disabled at compile-time. Also, checks are performed at runtime prior to calling into those platform-specific portions of code. The full test suite is routinely run on both Windows and Linux platforms (using Mono).