[FPC] Provide additional building instructions under Windows (and other) OSes

[TheRealHamtaro126]

Can you please provide TESTED instructions for multiplatform building under other platforms that are NOT Linux-only? Thanks...

My Target: currently WIN64(SDL) under WIN10 (Can target Win7 with no modifications?)
Other targets are also helpful if nessicary, Example: WIN32(SDL) under any Win32 environment.

If you aren't using windows for some reason... You can use a VM to simulate a windows enviroment and a VPN is optional but great for protection. Remember to avoid commercial VPNs since they are hackable. by every hacker out there...

If not... Can you let someone else you know with the testing skills have that task to test ClassicZoo's code for Win10 Building? I would appreciate it... Thanks

[asiekierka]

The current building system is a kludge and really not easily portable away from Linux. Sorry. As I'd like to move on to a full rewrite project going forward, I cannot guarantee there will be major improvements in that front.

[asiekierka]

(In addition, I do not have a Windows setup to test.)