[Lazarus] Install FPC and Lazarus from source

[Marco van de Voort]

On Sat, Nov 21, 2015 at 07:55:38AM -0800, Aradeonas wrote:
> Now I have a problem: My Lazarus version seems have problem. It can
> compile many packages but it cant compile BGRABitmap. It will stuck on
> sum two TPointF and give this error :
> > bgracanvas2d.pas(370,21) Error: Operator is not overloaded: "TPointF"
> > + "TPointF"

It might have something to do with the TPointF being added to the TYPES unit
last week of FPC trunk