Removed alloca() call for glDrawBuffers array.
Removed alloca() call for glDrawBuffers array.

SoulForMachine/GLSlayer,ubershader/GLSlayer,ubershader/GLSlayer,ubershader/GLSlayer,SoulForMachine/GLSlayer,ubershader/GLSlayer,SoulForMachine/GLSlayer,ubershader/GLSlayer,SoulForMachine/GLSlayer