GLM Preprocessor Definitions to Project

[NickHardeman]

Wrapping glm defines in if statements to avoid re-definition using project preprocessor definitions.
Will be editing projects to add GLM_FORCE_CTOR_INIT and GLM_ENABLE_EXPERIMENTAL preprocessor defines to projects.
As discussed in this thread #6530

[NickHardeman]

Defines were not added for tvOS since the project/tvOS/CoreOF.xcconfig did not have GCC_PREPROCESSOR_DEFINITIONS and I do not have a proper way to test.
And did not update the qtCreator project since I am not familiar with qtCreator.

[ofTheo]

It would be good to test that the defines come through at the project level.
I think the Xcode ones will as the Project.xcconfig includes the OF config, but not sure about VS and makefile common.

[NickHardeman]

I tested Xcode, make on macOS and Emscripten on macOS using the following class included in ofApp.h that does not include ofMain.h.
Emsripten worked after I edited the makefile common.
VS, Linux and iOS still need to be tested properly.
Another test will be using the PG with an addon that has defines in the addon config.

TestGLMSrc.zip

#pragma once
#include <string>
#include <iostream>
#include <glm/vec3.hpp>
#include <sstream>

class TestGLM {
public:
	
	TestGLM() {
		std::stringstream ss;
#if defined(GLM_FORCE_CTOR_INIT)
		ss << "GLM_FORCE_CTOR_INIT defined.";
#else
		ss << "xxxx GLM_FORCE_CTOR_INIT xxxx NOT defined.";
#endif
		std::cout << ss.str() << std::endl;
		
		add("constructor");
	}
	
	void add(std::string aname) {
		glm::vec3 a, b;
		glm::vec3 c = 0.5f * (a + b);
		std::cout << aname << " c: " << c.x << " a: " << a.x << " b: " << b.x;
	}
	
	glm::vec3 ma, mb;
	glm::vec3 mc = 0.5f * (ma + mb);
    
};

[NickHardeman]

Checking on VS 2022, the preprocessor macros are coming in and it prints as defined in the sample TestGLMSrc code above.

[ofTheo]

Thanks!!!