Don't call unlink_dirs if basedir is null
diff --git a/test/test-bz106632.c b/test/test-bz106632.c
index c2edd72..8558b58 100644
--- a/test/test-bz106632.c
+++ b/test/test-bz106632.c
@@ -295,7 +295,8 @@
 
 bail:
     fprintf (stderr, "Cleaning up\n");
-    unlink_dirs (basedir);
+    if (basedir)
+	unlink_dirs (basedir);
     if (fontdir)
 	FcStrFree (fontdir);
     if (cachedir)