From 5007f3f6026851a16aed9b0d0a30f3d19a548931 Mon Sep 17 00:00:00 2001
From: Tim Edwards <tim@opencircuitdesign.com>
Date: Wed, 13 Nov 2019 15:10:01 -0500
Subject: [PATCH] Modified "lef write" so that if a cell has a bounding box
 declared by FIXED_BBOX derived from GDS and the new "boundary" cif input
 rule, then the bbox property values take precedence over the
 extent-of-geometry bounding box.

---
 lef/lefWrite.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/lef/lefWrite.c b/lef/lefWrite.c
index da03bacf..3adfc12a 100644
--- a/lef/lefWrite.c
+++ b/lef/lefWrite.c
@@ -778,6 +778,20 @@ lefWriteMacro(def, f, scale, hide)
     else
 	boundary = def->cd_bbox;
 
+    /* If a bounding box has been declared with the FIXED_BBOX property	*/
+    /* then it takes precedence over def->cd_bbox.			*/
+
+    if (def->cd_flags & CDFIXEDBBOX)
+    {
+	char *propvalue;
+	bool found;
+
+	propvalue = (char *)DBPropGet(def, "FIXED_BBOX", &found);
+	if (found)
+	    sscanf(propvalue, "%d %d %d %d", &boundary.r_xbot,
+		    &boundary.r_ybot, &boundary.r_xtop, &boundary.r_ytop);
+    }
+
     /* Write position and size information */
 
     fprintf(f, "   ORIGIN %.4f %.4f ;\n",