[fpc-other] Which operating system is used to develop FPC ?

[Skybuck Flying]

Hello,

I have a question on my mind, a question for each individual developer of
Free Pascal Compiler:

Which operating system do you use to develop the compiler ?

One last question in case it's not windows:

Do you have the ability to run windows applications, for example via WINE ?
:)

Bye,
  Skybuck.