From 0f9194c78d1950e78bd3f3001fd72270a3bcca71 Mon Sep 17 00:00:00 2001
From: Jakub Jelinek <jakub@redhat.com>
Date: Mon, 3 Nov 2025 15:31:08 +0100
Subject: [PATCH] Fix up build of libcc1.

---
 libcc1/libcp1plugin.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/libcc1/libcp1plugin.cc b/libcc1/libcp1plugin.cc
index 02bba2daf10..e62c6ef9b9b 100644
--- a/libcc1/libcp1plugin.cc
+++ b/libcc1/libcp1plugin.cc
@@ -1568,7 +1568,8 @@ start_class_def (tree type,
 
 	  tree base = finish_base_specifier
 	    (convert_in (base_classes->elements[i]), access,
-	     (base_classes->flags[i] & GCC_CP_FLAG_BASECLASS_VIRTUAL) != 0);
+	     (base_classes->flags[i] & GCC_CP_FLAG_BASECLASS_VIRTUAL) != 0,
+	     NULL_TREE);
 	  TREE_CHAIN (base) = bases;
 	  bases = base;
 	}