diff --git a/test/lit.cfg b/test/lit.cfg
index 42de5cb..80f8d5a 100644
--- a/test/lit.cfg
+++ b/test/lit.cfg
@@ -146,3 +146,9 @@
 config.substitutions.append(
     (' %clang-cc1 ',
      """*** invalid substitution, use '%clang_cc1'. ***""") )
+
+###
+
+# Set available features we allow tests to conditionalize on.
+if platform.system() != 'Windows':
+    config.available_features.add('crash-recovery')