Fix watchOS builds

.spi.yml

@@ -0,0 +1,5 @@
+version: 1
+builder:
+  configs:
+  - platform: watchos
+    scheme: AttributedText_watchOS

Makefile

@@ -1,19 +1,23 @@
 DESTINATION_MAC = platform=macOS
-DESTINATION_IOS = platform=iOS Simulator,name=iPhone 8
-DESTINATION_TVOS = platform=tvOS Simulator,name=Apple TV
+DESTINATION_IOS = generic/platform=ios
+DESTINATION_TVOS = generic/platform=tvos
+DESTINATION_WATCHOS = generic/platform=watchOS
 
-default: test
+default: build
 
-test:
-	xcodebuild test \
+build:
+	xcodebuild \
 			-scheme AttributedText \
 			-destination '$(DESTINATION_MAC)'
-	xcodebuild test \
+	xcodebuild \
 			-scheme AttributedText \
 			-destination '$(DESTINATION_IOS)'
-	xcodebuild test \
+	xcodebuild \
 			-scheme AttributedText \
 			-destination '$(DESTINATION_TVOS)'
+	xcodebuild \
+			-scheme AttributedText_watchOS \
+			-destination '$(DESTINATION_WATCHOS)'
 
 format:
 	swiftformat .

Sources/AttributedText/NSAttributedString+TextAttachment.swift

@@ -1,20 +1,24 @@
-#if os(macOS)
-    import AppKit
-#elseif canImport(UIKit)
-    import UIKit
-#endif
+#if !os(watchOS)
+
+    #if os(macOS)
+        import AppKit
+    #elseif canImport(UIKit)
+        import UIKit
+    #endif
 
-extension NSAttributedString {
-    func updateImageTextAttachments(maxWidth: CGFloat) {
-        enumerateAttribute(.attachment, in: NSRange(location: 0, length: length), options: []) { value, _, _ in
-            guard let attachment = value as? NSTextAttachment,
-                  let image = attachment.image else { return }
+    extension NSAttributedString {
+        func updateImageTextAttachments(maxWidth: CGFloat) {
+            enumerateAttribute(.attachment, in: NSRange(location: 0, length: length), options: []) { value, _, _ in
+                guard let attachment = value as? NSTextAttachment,
+                      let image = attachment.image else { return }
 
-            let aspectRatio = image.size.width / image.size.height
-            let width = min(maxWidth, image.size.width)
-            let height = width / aspectRatio
+                let aspectRatio = image.size.width / image.size.height
+                let width = min(maxWidth, image.size.width)
+                let height = width / aspectRatio
 
-            attachment.bounds = CGRect(x: 0, y: 0, width: width, height: height)
+                attachment.bounds = CGRect(x: 0, y: 0, width: width, height: height)
+            }
         }
     }
-}
+
+#endif