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-rw-r--r--sql/sql_plugin_compat.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/sql/sql_plugin_compat.h b/sql/sql_plugin_compat.h
index 5c7bb620575..e0b184c9b2f 100644
--- a/sql/sql_plugin_compat.h
+++ b/sql/sql_plugin_compat.h
@@ -25,7 +25,7 @@
#define MIN_AUTHENTICATION_INTERFACE_VERSION 0x0100
struct MYSQL_SERVER_AUTH_INFO_0x0100 {
- char *user_name;
+ const char *user_name;
unsigned int user_name_length;
const char *auth_string;
unsigned long auth_string_length;