Compiling IDE with multithreading included

[wimpie]

Hi all

I am writing a visual component that uses threads in its constructor. When I try to place the component on a form I get the debug message
"This binary has no thread support compiled in.
Recompile the application with a thread-driver in the program uses clause....."

My guess is that the 'application' is the Lazarus IDE. So how do I compile the IDE with threading included?

A secondary question: This component worked completely until this morning. I recompiled a newer IDE in the meantime but I don't recall ever having added or removed anything thread related when compiling the IDE. Has something in this regard changed recently?

Thanks for all help

[wimpie]

I had another idea...the thread is only required at runtime, so is it possible for a component to know whether it is in design mode or run mode?

[Wodzu]

Yes, you must check if ComponentState is in csDesigning mode.

[wimpie]

Thanks, I will try that

[Ocye]

You probably forgot to add cthreads to your project:
http://wiki.lazarus.freepascal.org/Multithreaded_Application_Tutorial#Units_needed_for_a_multi-threaded_application