Concerning SDL2 as a GTK2 form control in Pascal/Lazarus

I hop between Windows 10 and Linux Mint constantly. The basic Lazarus components work fine without much changes need, if any at all. However, I wanted to use SDL2 as a form component because CPU rendering was too slow for my needs. I had for the first time to actually use compile time conditionals for these GTK2 specific problems to get SDL2 running without any issues on Linux Mint.