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-rw-r--r--innobase/include/fil0fil.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/innobase/include/fil0fil.h b/innobase/include/fil0fil.h
index 310336af38e..f7cdeb7f195 100644
--- a/innobase/include/fil0fil.h
+++ b/innobase/include/fil0fil.h
@@ -19,7 +19,7 @@ Created 10/25/1995 Heikki Tuuri
/* When mysqld is run, the default directory "." is the mysqld datadir, but in
ibbackup we must set it explicitly; the patgh must NOT contain the trailing
'/' or '\' */
-extern char* fil_path_to_mysql_datadir;
+extern const char* fil_path_to_mysql_datadir;
/* Initial size of a single-table tablespace in pages */
#define FIL_IBD_FILE_INITIAL_SIZE 4