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--- siag/railway.c.orig Sun Jun 6 10:30:40 1999
+++ siag/railway.c Tue Jun 22 13:59:53 1999
@@ -375,7 +375,7 @@
void ref_expander(buffer *buf, char *src, char *dest,
char *brk, char *tmpl, char *rng)
{
- int a1_refs = buf->a1_refs;
+ int a1_refs = buf ? buf->a1_refs : 0;
ref_state state = REF_START;
char *exp;
char *start, *end;
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