INN commit: trunk/include/inn (dbz.h)

[INN Commit]

    Date: Tuesday, May 21, 2013 @ 11:32:35
  Author: iulius
Revision: 9471

add a comment to remember why PACKED is needed

Modified:
  trunk/include/inn/dbz.h

-------+
 dbz.h |    4 ++++
 1 file changed, 4 insertions(+)

Modified: dbz.h
===================================================================
--- dbz.h	2013-05-20 16:34:54 UTC (rev 9470)
+++ dbz.h	2013-05-21 18:32:35 UTC (rev 9471)
@@ -49,6 +49,10 @@
 #if !defined(lint) && (defined(__SUNPRO_C) || defined(_nec_ews))
 #pragma pack(1)
 #endif /* nor lint, nor __SUNPRO_C, nor sgi, nor _nec_ews */
+/* Leave the PACKED on there because removing it might change the layout of
+ * the data structure on disk on some platform, thus invalidating old history
+ * files.  It is fairly unlikely that this is a problem, though.
+ */
 typedef struct {
     char		hash[DBZ_INTERNAL_HASH_SIZE];
 } PACKED erec;