Add definitions of MXS_MODULE_NAME to all modules

All modules now declare a name for the module. This is name is added as a
prefix to all messages logged by a module. The prefix should help
determine which part of the system logs a message.

server/modules/routing/avrorouter/avro.c

@@ -24,8 +24,7 @@
  * @endverbatim
  */
 
-#define MXS_MODULE_NAME "avrorouter"
-#include <maxscale/cdefs.h>
+#include "avrorouter.h"
 
 #include <stdio.h>
 #include <stdlib.h>
@@ -48,7 +47,6 @@
 #include <ini.h>
 #include <sys/stat.h>
 
-#include "avrorouter.h"
 #include <maxscale/random_jkiss.h>
 #include <binlog_common.h>
 #include <avro/errors.h>

server/modules/routing/avrorouter/avro_client.c

@@ -24,6 +24,8 @@
  * @endverbatim
  */
 
+#include "avrorouter.h"
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <errno.h>
@@ -37,7 +39,6 @@
 #include <maxscale/spinlock.h>
 #include <maxscale/log_manager.h>
 #include <maxscale/version.h>
-#include "avrorouter.h"
 #include <maxavro.h>
 #include <maxscale/alloc.h>
 

server/modules/routing/avrorouter/avro_file.c

@@ -30,10 +30,11 @@
  * @endverbatim
  */
 
+#include "avrorouter.h"
+
 #include <binlog_common.h>
 #include <blr_constants.h>
 #include <sys/stat.h>
-#include "avrorouter.h"
 #include <maxscale/log_manager.h>
 #include <maxscale/pcre2.h>
 #include <ini.h>

server/modules/routing/avrorouter/avro_index.c

@@ -33,6 +33,7 @@
  */
 
 #include "avrorouter.h"
+
 #include <maxscale/debug.h>
 #include <glob.h>
 

server/modules/routing/avrorouter/avro_rbr.c

@@ -11,11 +11,11 @@
  * Public License.
  */
 
+#include "avrorouter.h"
 
 #include <maxscale/mysql_utils.h>
 #include <jansson.h>
 #include <maxscale/alloc.h>
-#include "avrorouter.h"
 #include <strings.h>
 
 #define WRITE_EVENT         0

server/modules/routing/avrorouter/avro_schema.c

@@ -14,11 +14,9 @@
 /**
  * @file avro_schema.c - Avro schema related functions
  */
-#ifndef _GNU_SOURCE
-#define _GNU_SOURCE
-#endif
 
 #include "avrorouter.h"
+
 #include <maxscale/mysql_utils.h>
 #include <jansson.h>
 #include <stdio.h>

server/modules/routing/avrorouter/avrorouter.h

@@ -18,6 +18,9 @@
  * MaxScale AVRO router
  *
  */
+
+#define MXS_MODULE_NAME "avrorouter"
+
 #include <maxscale/cdefs.h>
 #include <stdbool.h>
 #include <stdint.h>