Avoid issues with mysql defining preprocessor macros min and max.
These macros conflict with recent gcc stl implementations.

Patch suggested by Patrick Williams
References: https://bugs.gentoo.org/show_bug.cgi?id=277654

2009-07-30 Martin von Gagern

Index: gdal-1.6.0/ogr/ogrsf_frmts/mysql/ogr_mysql.h
===================================================================
--- gdal-1.6.0.orig/ogr/ogrsf_frmts/mysql/ogr_mysql.h
+++ gdal-1.6.0/ogr/ogrsf_frmts/mysql/ogr_mysql.h
@@ -31,6 +31,8 @@
 #ifndef _OGR_MYSQL_H_INCLUDED
 #define _OGR_MYSQL_H_INCLUDED
 
+#include "ogrsf_frmts.h"
+
 #include <my_global.h>
 #include <mysql.h>
 
@@ -38,8 +40,6 @@
 #undef bool
 #endif
 
-#include "ogrsf_frmts.h"
-
 /************************************************************************/
 /*                            OGRMySQLLayer                             */
 /************************************************************************/