From aca219696406c57810348b57afff0c531ab98a8a Mon Sep 17 00:00:00 2001
From: "Eric S. Raymond" <esr@thyrsus,com>
Date: Fri, 30 Jan 2004 21:53:12 +0000
Subject: [PATCH] Check for empty deck.

---
 mad | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/mad b/mad
index b316930..5b7aa74 100755
--- a/mad
+++ b/mad
@@ -676,6 +676,10 @@ if __name__ == '__main__':
         # Parse
         yacc.parse(source, debug=mad_debug)
 
+    if not deck:
+        sys.stderr.write("mad: empty deck\n")
+        sys.exit(1)
+
     # Perform global analysis
     analyze()
 
-- 
2.43.0