Getting LNK2019 error on plugin compilation

deleted456

@SGaist said in Getting LNK2019 error on plugin compilation:

This means that, on Windows, the linker won't find them.

Hello thanks for you answer, to be honest im quite newbie to qt and im not exactly got what you have suggested. You mean the compiler doesnt found qcadcore.lib,qcadgui.lib and qcadecmaapi.lib files in exampleplugin.pro file? And if so how can i solve it?
Thanks a lot for your help

SGaist

~~Did yes, they want to see on them.~~

It's rather that they are not generated because no symbol were exported.

[edit: Something went wrong with the answer SGaist]

deleted456

Sorry what do you mean?

I had .dll files from source code and used this method https://adrianhenke.wordpress.com/2008/12/05/create-lib-file-from-dll/ to create .lib files

jsulm

@wodasdsa You should read http://doc.qt.io/qt-5/sharedlibrary.html

deleted456

i dont think the problem is in libraries i cant compile without them either..

SGaist

Can you show the relevant header(s) content ?

deleted456

Sure,
to see shared.pri you can check the following link,
https://github.com/qcad/qcad/blob/master/shared.pri

Thanks

SGaist

You're on Windows and not exporting any symbol hence the problem. Do as @jsulm suggested and use the export macros.

deleted456

How can i do that? im newbie to qt and didnt understand most the terms used in that documentation..

SGaist

Just follow the indications in the "Using Symbols from Shared Libraries" part.