[ios simulator] - setupScreenPerspective failing with a NaN

[dimitre]

it seems a variable called float aspect becomes a NaN after a division by zero
it seems this piece of code is returning some weird values (probably uninitialized memory) on simulator

ofRectangle ofGLRenderer::getNativeViewport() const {
	GLint viewport[4]; // Where The Viewport Values Will Be Stored
	glGetIntegerv(GL_VIEWPORT, viewport);

it seems glGetIntegerv(GL_VIEWPORT, viewport); and it is not changing values in array
returning one arbitrary rectangle

steps to reproduce:
just test an empty project on simulator

[danoli3]

Emulator maybe need to wait till first frame