diff --git a/util/opt/build.mk b/util/opt/build.mk
index 75cb92553..a4e62ced7 100644
--- a/util/opt/build.mk
+++ b/util/opt/build.mk
@@ -11,7 +11,6 @@ $(call flex, $(OBJDIR)/$D, $D/scan.l)
 $(call dependson, $(OBJDIR)/$D/y.tab.h)
 
 $(call rawfile, $(LIBEM_DATA))
-$(call rawfile, -lfl)
 $(call cprogram, $(OBJDIR)/$D/mktab)
 
 endef
diff --git a/util/opt/mktab.y b/util/opt/mktab.y
index 08beaeccc..e2a6c0b1a 100644
--- a/util/opt/mktab.y
+++ b/util/opt/mktab.y
@@ -294,6 +294,10 @@ main() {
 	return nerrors;
 }
 
+int yywrap(void) {
+	return 1;
+}
+
 yyerror(s) char *s; {
 
 	fprintf(stderr,"line %d: %s\n",lino,s);