From 8c37b28c0bc6fccdb88fa0769802e5d83ceb8f88 Mon Sep 17 00:00:00 2001
From: "msvensson@neptunus.(none)" <>
Date: Tue, 6 Feb 2007 14:07:40 +0100
Subject: [PATCH] Bug#8983 one place that isn't strict-aliasing-safe  -
 Backport fix from 5.0

---
 sql/sql_prepare.cc | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/sql/sql_prepare.cc b/sql/sql_prepare.cc
index 2688841d96c..32a0a4af3cd 100644
--- a/sql/sql_prepare.cc
+++ b/sql/sql_prepare.cc
@@ -1783,8 +1783,9 @@ static void reset_stmt_params(Prepared_statement *stmt)
       packet_length  Query string length, including terminator character.
 */
 
-void mysql_stmt_execute(THD *thd, char *packet, uint packet_length)
+void mysql_stmt_execute(THD *thd, char *packet_arg, uint packet_length)
 {
+  uchar* packet= (uchar*)packet_arg; // gcc 4.0 stgrict-aliasing
   ulong stmt_id= uint4korr(packet);
   /*
     Query text for binary log, or empty string if the query is not put into
@@ -1792,7 +1793,7 @@ void mysql_stmt_execute(THD *thd, char *packet, uint packet_length)
   */
   String expanded_query;
 #ifndef EMBEDDED_LIBRARY
-  uchar *packet_end= (uchar *) packet + packet_length - 1;
+  uchar *packet_end= packet + packet_length - 1;
 #endif
   Prepared_statement *stmt;
   DBUG_ENTER("mysql_stmt_execute");
@@ -1818,9 +1819,9 @@ void mysql_stmt_execute(THD *thd, char *packet, uint packet_length)
 #ifndef EMBEDDED_LIBRARY
   if (stmt->param_count)
   {
-    uchar *null_array= (uchar *) packet;
-    if (setup_conversion_functions(stmt, (uchar **) &packet, packet_end) ||
-        stmt->set_params(stmt, null_array, (uchar *) packet, packet_end,
+    uchar *null_array= packet;
+    if (setup_conversion_functions(stmt, &packet, packet_end) ||
+        stmt->set_params(stmt, null_array, packet, packet_end,
                          &expanded_query))
       goto set_params_data_err;
   }