--- a/configure.in	2022-01-09 00:31:05.552582255 -0800
+++ a/configure.in	2022-01-09 00:31:19.824582533 -0800
@@ -1203,7 +1203,7 @@ 
             return 3;
         }
         return 0;
-    }], [], [ac_cv_file__dev_zero=no], [ac_cv_file__dev_zero=no])
+    }], [], [ac_cv_file__dev_zero=no], [:])
 
     AC_MSG_RESULT($ac_cv_file__dev_zero)
 fi