From 0ec8e181739a5303cb68be2f76014c6b90c6a977 Mon Sep 17 00:00:00 2001
From: Matthias Koefferlein <matthias@klayout.de>
Date: Tue, 8 Apr 2025 23:52:50 +0200
Subject: [PATCH] refining the DEF warning on missing foreign cell

---
 src/plugins/streamers/lefdef/db_plugin/dbLEFDEFPlugin.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/plugins/streamers/lefdef/db_plugin/dbLEFDEFPlugin.cc b/src/plugins/streamers/lefdef/db_plugin/dbLEFDEFPlugin.cc
index e86f79ce3..06e42a0c7 100644
--- a/src/plugins/streamers/lefdef/db_plugin/dbLEFDEFPlugin.cc
+++ b/src/plugins/streamers/lefdef/db_plugin/dbLEFDEFPlugin.cc
@@ -278,7 +278,7 @@ LEFDEFReader::read_lefdef (db::Layout &layout, const db::LoadLayoutOptions &opti
 
     //  Warn about cells that could not be resolved
     for (std::map<std::string, db::cell_index_type>::iterator f = foreign_cells.begin (); f != foreign_cells.end (); ++f) {
-      if (f->second != seen) {
+      if (f->second != seen && layout.cell (f->second).is_ghost_cell ()) {
         importer.warn (tl::sprintf (tl::to_string (tr ("Could not find a substitution layout for foreign cell '%s'")),
                                     f->first));
       }