linking qt3 to a library

[thebra]

I am trying to pass data in form of ( x, y, dy) to be fitted using the minuit library. The code works perfect when compiled using a command line. But it doesn't when adjusted to fit in a GUI. Is it linking problem or just problems with unknown classes? I will check that again. But do you think there is nothing wrong with code.pro? Thanks

[jacek]

Is it linking problem or just problems with unknown classes?

That error message comes from the compiler, not linker, so either you have some typo in your code or missing #include directive.

But do you think there is nothing wrong with code.pro?

Yes, it looks OK.

[thebra]

I figured it out and it had to do with how classes of the C++ code were defined. Thanks for your help.