       ("Sol Cafe", nil), xfail: true)
   }
 
+  // FIXME: Keep this until _wordIndex and friends are
+#if os(Linux)
   func testLevel2WordBoundaries() {
     // MARK: Level 2 Word Boundaries
     firstMatchTest(#"\b😊\b"#, input: "🔥😊👍", match: "😊")

      xfail: true
    )

    // HTML tags
    matchTest(
      #"<([a-zA-Z][a-zA-Z0-9]*)\b[^>]*>.*?</\1>"#,

      ("pass me the the kettle", ["the"]),
      ("this doesn't have any", nil)
    )
#endif

    // Floats
    flatCaptureTest(
