Stack around variable oglText is corrupted

[plamenko]

Just calling constructor and destructor of OpenGLText corrupts the stack around it. This is with Visual Studio 2013, x64.

	{
		OpenGLText oglText;
	}

[plamenko]

This could be due to #define USE_* directives being in cpp file and not in the header file.

[AaronBalint]

Was experiencing the same with gcc - moving ALL the #defines to OpenGLText.h resolved the issue.