CODEWITHSUNDEEP
c++qtqt5
roosevelt
roosevelt

Reputation: 1974

Compile a Qt-Project and Include Qt Libraries

I have a C++ project using Qt and I have it working as expected. However, the problem is when I copy the executable to a standard installation of a OS (e.g. Windows or a Linux) upon execution I receive the QtWidgets or some other Qt libraries missing error.

I tried referencing the Qt Documentation but I am unable to find a solution or an example of what I am after. It has something to do with Static and Dynamic Building... but could not locate a good example or tutorial.

I looked at the tutorial http://www.qtcentre.org/wiki/index.php?title=Deploying_Qt_Applications but it is not quite the most efficient solution.

Basically I want the system to include the required Qt libraries along with the final compiled file. How can I pull it off?

Upvotes: 0

Views: 934

Answers (1)

air-dex
air-dex

Reputation: 4178

What you can do is making a script which copies your DLLs (or .so* files) in the executable folder. Once you make it add an extra Makefile target in your project file :

theproject.pro:

OTHER_FILES += copy.script    # Assuming your copy script is called "copy.script" 
deploylibs.target = deploylibs
deploylibs.command = ./copy.script    # Launching the script

QMAKE_EXTRA_TARGETS += deploylibs

Now you can deploy your libraries by using the (n)make deploylibs command.

NB: there is a very useful tool called "Dependency Walker" to find the DLLs you need. It is only for Windows. As for Linux and its *.so* files you can use the ldd command :

>$: ldd theexecutable
    alib.so => /path/to/library/on/your/computer.so
...

Upvotes: 1

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