TOPIC:

I tried to compile a simple application with only one form and I see that the size of output is very big.. Does exist a tool to compact linux executable (like upx for windows)?

Sir
1)-first remove Debug info from you executable, Cross-Debug is a long story...
2)-If you want use UPX tool from CTCenter
3) hit UPX test to see if your target CPU-OS supported from UPX (current ver 3.91)

CT has the same UPX dialog for ALL Host-OSes (Win32, Win64, Solaris32, Solaris64, FreeBSD....etc)

Why Test UPX button is not enabled ?

Please Sir
you OS ?

Windows 7 64bit

If you build CT with normal procedure UPX is in
C:\codetyphon\fpc\fpc64\bin\x86_64-win64\ folder

if Not your CT installation has problem

Maybe the problem is that I installed only FPC 32