--- ./build/apr_hints.m4.orig	2021-01-20 09:34:45.000000000 -0800
+++ ./build/apr_hints.m4	2021-01-20 09:35:04.000000000 -0800
@@ -194,7 +194,7 @@
                 APR_SETIFNULL(ac_cv_func_kqueue, [no]) 
                 APR_SETIFNULL(ac_cv_func_poll, [no]) # See issue 34332
             ;;
-            *-apple-darwin1?.*)
+            *-apple-darwin[1-2]?.*)
                 APR_ADDTO(CPPFLAGS, [-DDARWIN_10])
             ;;
         esac