GNU Go for S60 v2.0

Finally got the S60 second edition to stop crashing enough to draw the board. Maaaan that was hard work! Basically I have been working on it for the whole weekend trying to get it to compile once all the global variables I could spot have been stripped out and moved to a dynamic structure stored in Tls().

Really, whoever decided that not supporting global variables was a good idea needs a right good sla^H^H^H *ahem* ... talking to. It is positively the worst OS misfeature I have ever come across. Using Tls() is not even a good solution because there is no migration path to speak of. Basically you have to:

• go through the code and look for a writable variable (the compiler only accurately warns about some tiny minority of them, so keep your eyes peeled)
  
• move the declaration to one place
• mov the initialization to a different place that doesn't support the previous type of initialization
• make the runtime inialization work
  
• define a macro for the old variable name
• add the macro to however many dozen files need it
• workaround any issues in the code that conflict with the macro
  

Congratulations! You have now migrated one writable static variable to SymbianOS. Now repeat a few hundred times. And if you missed any of them be prepared for this message and some long hours with the debugger: