Undefined reference to my signal

[sunil.thaha]

AFAIK. If you add a file then make calls qmake first. Only when u add Q_OBJECT to the class do we need to call the qmake manually.

[shad]

btw, there is a strange symbol (single quote) after "HEADERS" in the project file

[tomek]

I found the apostrophe too, happily quickly
I've been always executing `qmake && make` not to forget about the qmake.
Thanks for your posts!

[katrina]

Only when u add Q_OBJECT to the class do we need to call the qmake manually.

This is good to know, I have been trying to run it after I add any new file regardless of of it Q_OBJECT-ed-ness. (although I tend to implement signals and slots heavily(maybe too much so!), so 80% of my new code is a Q_OBJECT...still good info!!! Thanks!)

Katrina

[TheIndependentAquarius]

Missing Q_OBJECT in the class declaration also does lead to the same error: undefined reference to `MyThread::MySignal()'