Linking errors after moving to SSQLSs, macro problem

[Simon Pickles]

Hi,

My app was building and running without using SSQLS, but seeing the 
simplicity and extra functionality they afford, I moved to SSQLS. 
Unfortunately, this generates a string of linker errors now, due to 
multiple definitions.

This is, I think, because I have declared the SSQLS using a macro in a 
header file. To use the resulting data structure I have been including 
the header file, but this runs the macro repeatedly of course.

Eg:

#ifndef DATABASESTRUCTS_H
#define DATABASESTRUCTS_H

#include <mysql++.h>
#include <custom.h>

sql_create_4(    PlayerSQL,         1, 0,
                unsigned int,     PLAYER_ID,
                std::string,     PLAYER_NAME,
                unsigned int,     PLAYER_OBJECTID,
                unsigned int,     PLAYER_ZONE );
#endif

What is the correct way to overcome this? I need PlayerManager.cpp and 
Player.cpp to have PlayerSQL in scope.

Thanks

Simon

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