Only generate SDKSettings.json for Swift 5.9 and 6.0

Author: xtremekforever

build-linux-cross-sdk.sh

@@ -51,14 +51,16 @@ echo "Copying Swift install into $TARGET_SDK_DIR..."
 cp -rf $INSTALL_DESTDIR/* $TARGET_SDK_DIR
 
 # Annoying but helpful for Swift versions < 6.1
-echo "Creating SDKSettings.json to silence cross-compilation warnings"
-cat <<EOT > $TARGET_SDK_DIR/SDKSettings.json
+if [[ $SWIFT_VERSION == *"5."* ]] || [[ $SWIFT_VERSION == *"6.0"* ]]; then
+    echo "Creating SDKSettings.json to silence cross-compilation warnings"
+    cat <<EOT > $TARGET_SDK_DIR/SDKSettings.json
 {
   "SupportedTargets": {},
   "Version": "0.0.1",
   "CanonicalName": "linux"
 }
 EOT
+fi
 
 # Create destination.json file
 echo "Creating $DISTRIBUTION.json file for SDK..."