Allow the game to build on OSX

[johannes-graner]

Summary

Build "Allow the game to build on OSX"

Purpose of change

The game did not compile on OSX, neither locally nor in experimental release GH action, due to the Makefile not linking the freetype2 library. Closes #77410.

Describe the solution

Include and link the library when building for OSX.

Describe alternatives you've considered

Figuring out if there is a reason why this is not included for all tiles builds, regardless of operating system. I'll leave that to someone with more experience of the makefile, and I don't want to break what isn't broken.

Testing

Compiles locally. Removing the obj/tiles/third-party/imgui directory and recompiling works fine.

Additional context

[johannes-graner]

Doesn't seem to work very nicely for building a universal binary. I don't have much C++ experience, and even less time to get this to work properly. If someone wants to figure out how to get the dynamic library working for both x86_64 and arm64 at the same time, feel free to do so, but I'll close this PR in the meantime.

[Ivan-Shestakov]

plugging these two lines in - allowed me to complete the build, thanks!

[katemonster33]

@johannes-graner hi friend, i think your fix here is correct, would you mind reopening this? Regarding the build failures youre talking about with arm64, can you list your error message?

[johannes-graner]

@johannes-graner hi friend, i think your fix here is correct, would you mind reopening this? Regarding the build failures youre talking about with arm64, can you list your error message?

Hi! Sure, I can reopen the PR, but I don't think. I can finish it. The relevant failure is at this CI step, which only shows up when building a universal binary. I have an arm64 Mac, and I can build fine locally as long as I omit UNIVERSAL_BINARY=1 from the make command.

[akrieger]

Hey, thanks for this fix. We can go ahead and commit this once basic build passes, I have followup fixes that will fix our mac ci builds.