Trying new compiler directive

Sources/SwiftNLP/2. Embeddings/KeyedVectorCorpus.swift

@@ -21,13 +21,21 @@
 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 // OTHER DEALINGS IN THE SOFTWARE.
 
+#if os(Darwin)
+#warning("OS = DARWIN")
+#else
+#warning("OS != DARWIN")
+#endif
+
+
 import Foundation
-#if canImport(Surge)
+#if canImport(Accelerate)
 import Surge
 #else
 //TODO: Implement Linux alternative with better performance, currently uses naive solution.
 #endif
 
+
 class KeyedVectorCorpus: SNLPCorpus {
                 
     typealias DocumentEncoding = [Double]