Include code from GitHub in Qt project

Qtpp

Hi there,

I'm new to Qt and relatively new to C++.
How can I add libraries/code I pulled from GitHub (or somewhere else) to my QMake project?
There are no .lib files, so the Wizard in QtCreator to add dynamic libraries doesn't work.
I already added the INCLUDEPATH to my .pro file and I managed to include the headers, I need... and now?!
I still get undefinded reference to ..... messages when using functions from there.
Do I need to compile the whole code from GitHub myself? The folders I pulled, contain dozens of subfolders and lots of headers.

Any help appreciated

Christian Ehrlicher

Either build and install it by yourself or write a proper ExternalProject_add() script for it and use this.

SGaist

Hi and welcome to devnet,

Did you build and install that library ?

Qtpp

@SGaist

I pulled the code via git pull into my "D:/dev/lib/" directory where I want to collect all additonal libs I'm planning to use and added that path to INCLUDEPATH.

So I have to build the library separately?!
I thought I can just include and "use" the headers from there since I pointed to the place where all the code from GitHub is located?

Christian Ehrlicher

@Qtpp said in Include code from GitHub in Qt project:

So I have to build the library separately?!

Yes

I thought I can just include and "use" the headers from there since I pointed to the place where all the code from GitHub is located?

Github normally provides source code in the git repos, not pre-compiled libraries.

Qtpp

@Christian-Ehrlicher

Oh, well... What's the best way to do so?
I'm using QtCreator and minGW on Windows 10.

Christian Ehrlicher

Either build and install it by yourself or write a proper ExternalProject_add() script for it and use this.

Qtpp

@Christian-Ehrlicher

Are there any good tutorials how to do this?

jsulm

@Qtpp said in Include code from GitHub in Qt project:

Are there any good tutorials how to do this?

Many project provide a text file in their repository describing how to build - did you check that? You did not even say whether this project uses CMake, QMake or something else...

Qtpp

@jsulm said in Include code from GitHub in Qt project:

You did not even say whether this project uses CMake, QMake or something else...

The GitHub project contains a CMakeLists.txt
I'm using QMake (Qt5.15 with QtCreator).

I tried to build the library or code from GitHub using CMake GUI, but it failed.

Will look for alternatives or any pre-compiled library where I can include the *.lib directly.

Thank you all :)

jsulm

@Qtpp said in Include code from GitHub in Qt project:

but it failed

This does not help to understand and solve the problem.
You should provide more details...