From 4163eb28d0aa1e7a7d90bc1e926f9ad4b3ae7f92 Mon Sep 17 00:00:00 2001
From: Cary R <cygcary@yahoo.com>
Date: Wed, 25 Jun 2008 10:49:57 -0700
Subject: [PATCH] Copy file and line info during a macro expansion.

The file and line number information needs to be copied when
doing a macro expansion. This prevents a macro that expands to
an `ifdef of other construct that needs to push the stack
from core dumping.
---
 ivlpp/lexor.lex | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/ivlpp/lexor.lex b/ivlpp/lexor.lex
index c4ac34fc3..dc1c7ebee 100644
--- a/ivlpp/lexor.lex
+++ b/ivlpp/lexor.lex
@@ -1362,6 +1362,8 @@ static void do_expand(int use_args)
         }
 
         isp->next = istack;
+        isp->path = strdup(istack->path);
+        isp->lineno = istack->lineno;
         istack->yybs = YY_CURRENT_BUFFER;
         istack = isp;