--- a/lib/xcode_support.bzl
+++ b/lib/xcode_support.bzl
@@ -33,7 +33,6 @@
     current_version = xcode_config.xcode_version()
     if not current_version:
-        fail("Could not determine Xcode version at all. This likely means Xcode isn't available; " +
-             "if you think this is a mistake, please file an issue.")
+        return False

     desired_version = apple_common.dotted_version(version)
     return current_version >= desired_version