From cb73ebfab02e6eed32f08287b45522c61ef542f8 Mon Sep 17 00:00:00 2001
From: Tim Edwards <tim@opencircuitdesign.com>
Date: Fri, 8 Mar 2024 12:28:29 -0500
Subject: [PATCH] Corrected an error in lefWrite where SelectClear() is called
 without SelectRootDef being set, which causes SelectClear() to return without
 doing anything.  However---question is why SelectClear() needs SelectRootDef
 to be non-NULL since it is clearing the selection, not the selection source. 
 For now, just patching the failing case, not trying to mess with the whole
 selection mechanism.

---
 lef/lefWrite.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/lef/lefWrite.c b/lef/lefWrite.c
index c00c9a34..66f3ca83 100644
--- a/lef/lefWrite.c
+++ b/lef/lefWrite.c
@@ -1496,6 +1496,11 @@ lefWriteMacro(def, f, scale, setback, pinonly, toplayer, domaster)
 		Rect carea;
 		labelLinkedList *newlll;
 
+		/* SelectClear() requires SelectRootDef be non-NULL, although
+		 * this might be an error in SelectClear(), since SelectClear()
+		 * clears the selection, not the source.
+		 */
+		if (SelectRootDef == NULL) SelectRootDef = lefFlatDef;
 	    	SelectClear();
 		if (pinonly == 0)
 		    carea = labr;