From a327c65d28fa31f924166f3b5da7feaa73cc124c Mon Sep 17 00:00:00 2001
From: Cyrill Gorcunov <gorcunov@gmail.com>
Date: Sun, 14 Feb 2010 17:19:38 +0300
Subject: preproc.c: Fix SIGSEV on missed %endm

In case if EOF is reached (or due to any
other case pp_cleanup is being called) we
do free "defining" macro but forgot to set
pointer to NULL itself which leads to attempt
to free memory again for this macro on further
pp_cleanup calls.
---
 preproc.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/preproc.c b/preproc.c
index fcec93d6..bbe2dae9 100644
--- a/preproc.c
+++ b/preproc.c
@@ -4804,6 +4804,7 @@ static void pp_cleanup(int pass)
         }
 
         free_mmacro(defining);
+        defining = NULL;
     }
     while (cstk)
         ctx_pop();
-- 
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