$NetBSD$

--- Makefile.orig	2019-04-27 18:12:40.000000000 +0000
+++ Makefile
@@ -16,7 +16,7 @@ OBJCOPY		 = $(CROSS_COMPILE)objcopy
 HOSTAR		 = ar
 HOSTCC		 = cc
 
-LEX		 = lex
+LEX		 = flex
 YACC		 = yacc
 
 HAVE_GCC9	:= $(findstring version 9,$(shell $(CC) -v 2>&1;:))