File 184.patch of Package transfig.38710

Based on ff9aba206a30288f456dfc91584a52ba9927b438 Mon Sep 17 00:00:00 2001
From: Thomas Loimer <thomas.loimer@tuwien.ac.at>
Date: Tue, 21 Jan 2025 20:50:15 +0100
Subject: [PATCH] Allow an arc-box with zero radius, ticket #184

In the pict2e output, a rectangle with rounded corners,
dashed line type and zero corner-radius would cause a crash.
Convert rectangles with rounded corners and zero corner-radius to
regular rectangles.

---
 fig2dev/read.c |    8 ++++++++
 1 file changed, 8 insertions(+)

--- fig2dev/read.c
+++ fig2dev/read.c	2025-05-08 16:32:47.417897443 +0200
@@ -989,6 +989,14 @@ sanitize_lineobject(
 			    obj_name[l->type-2], line_no);
 		    return -1;
 		}
+		if (l->type == T_ARC_BOX && l->radius == 0) {
+		    put_msg("A %s, but zero corner radius "
+			    "at line %d - convert "
+			    "to a rectangle.",
+			    obj_name[l->type - 2], line_no);
+		    l->type = T_BOX;
+
+		}
 	    }
 	}