--- ruby-3.0.2/configure	2021-09-16 14:10:42.314091669 -0700
+++ ruby-3.0.2/configure	2021-09-18 19:14:21.633876942 -0700
@@ -28610,7 +28610,7 @@
   *) :
      ;;
 esac ;; #(
-  linux* | gnu* | k*bsd*-gnu | netbsd* | bsdi* | kopensolaris*-gnu | haiku*) :
+  linux* | gnu* | k*bsd*-gnu | netbsd* | bsdi* | kopensolaris*-gnu | serenity* | haiku*) :
 
 			: ${LDSHARED='$(CC) -shared'}
 			if test "$rb_cv_binary_elf" = yes; then :