Added -Wextra to GCC flags in debug build.
Added -Wextra to GCC flags in debug build.

sav6622/aquila,Aldor007/aquila,zsiciarz/aquila,sav6622/aquila,zsiciarz/aquila,tempbottle/aquila,Aldor007/aquila,synkarae/Quasar,synkarae/aquila,tempbottle/aquila,synkarae/Quasar,tempbottle/aquila,sav6622/aquila,synkarae/Quasar,Aldor007/aquila,synkarae/aquila,zsiciarz/aquila,zsiciarz/aquila,synkarae/aquila