Enusure that my_global.h is included first

- Added sql/mariadb.h file that should be included first by files in sql
  directory, if sql_plugin.h is not used (sql_plugin.h adds SHOW variables
  that must be done before my_global.h is included)
- Removed a lot of include my_global.h from include files
- Removed include's of some files that my_global.h automatically includes
- Removed duplicated include's of my_sys.h
- Replaced include my_config.h with my_global.h

1 files changed, 30 insertions, 0 deletions

diff --git a/sql/mariadb.h b/sql/mariadb.h
new file mode 100644
index 00000000000..00cf2ed1d9c
--- /dev/null
+++ b/sql/mariadb.h
@@ -0,0 +1,30 @@
+/* Copyright (c) 2010, 2017, MariaDB Corporation.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; version 2 of the License.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA */
+
+/*
+  Include file that should always be included first in all file in the sql
+  directory. Used to ensure that some files, like my_global.h and my_config.h
+  are always included first.
+  It can also be used to speed up compilation by using precompiled headers.
+
+  This file should include a minum set of header files used by all files
+  and header files that are very seldom changed.
+  It can also include some defines that all files should be aware of.
+*/
+
+#ifndef MARIADB_INCLUDED
+#define MARIADB_INCLUDED
+#include <my_global.h>
+#endif /* MARIADB_INCLUDED */