How can i static build qt project in Visual Studio

vandal_op

Hi everyone, I hope you have a good day.

I have a problem, after I finished my codes, I encountered the error "Qt6Widgets.dll and etc. not found", which I threw to my friend to try
And i did my experiments with debug until i finished coding.
I just realized that I didn't compile static.
I did some research and after the program is compiled, I can release with windeployqt.exe like the "D:\Qt\6.3.1\msvc2019_64\bin\windeployqt.exe --release D:\dll_login\vgc_login.dll", but it needs a lot of files.
https://prnt.sc/iujJHWDhfqcp

I did some more research but couldn't find anything.
I checked the Runtime Library line of my project and the settings were correct.
So I think the problem is that qt is not compiled as static, I am waiting for your help on this issue.
https://prnt.sc/W0bG3MLwkUtg

I wish you all a happy and healthy new year!

SGaist

Hi and welcome to devnet,

If you want a static Qt, then you will have to build Qt yourself that way. Don't forget the requirements that comes with the license you are using and that you have to abide to.

vandal_op

Thanks, first of all I just started using Qt and thanks for trying to help me!
Actually I want to share with others without needing other qt dll files and in low size (.mb).
But I guess there is no other way to do this other than static compiling, if there is, can you tell me?

SGaist

Another way is to build your own version of Qt with all unused features disabled. That requires some work as well.

Depending on the modules you use, you can shave off some things like unused image/database plugins.

vandal_op

he is can run his project with out qt desing

https://youtu.be/rFHPOZoqzcg?t=91

but i can't
i have a few dll error like the qt6core.dll q6widgets.dll qt6network.dll
i cant run my project with out qt desing

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Christian Ehrlicher

@vandal_op said in How can i static build qt project in Visual Studio:

i have a few dll error like the qt6core.dll q6widgets.dll qt6network.dll

You need to adjust your PATH environment variable so the dlls are found during runtime.

vandal_op

how can i do?

where is the dlls? i think i have to found dlls folder and write to this page?
im right?
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Christian Ehrlicher

@vandal_op said in How can i static build qt project in Visual Studio:

how can i do?

lmgtfy

where is the dlls?

In your first post you wrote where you installed your Qt to, so I would start searching in there...

vandal_op

This post is deleted!

vandal_op

alt text

i cant build static qt, what is this error?

vandal_op

any help?

Christian Ehrlicher

As you can see in your output you're building for MinGW, not MSVC. Adjust your environment (hint: Visual Studio Command prompt) so cl.exe is properly found by configure.bat/cmake.

vandal_op

i watch this video https://youtu.be/KCH92zvrHas?t=330t
and his have a gnuwin32 file in qt src but i dont have
and he is using this file for build..

https://prnt.sc/dGJM8w4fCtwy

https://prnt.sc/8ixug_JUdXLb

https://prnt.sc/R_jmzIoEV6Bd

vandal_op

@Christian-Ehrlicher did u have anything info?

Christian Ehrlicher

@vandal_op said in How can i static build qt project in Visual Studio:

did u have anything info?

No - I already told you that you have to make sure that configure picks up the msvc compiler and not the MinGW one as you can't mix the two compiler. So clean up your build dir and start over.

vandal_op

@Christian-Ehrlicher finaly i can build now but not working again..

https://prnt.sc/dw5Ji91U6kK6
prefix folder is empty

https://prnt.sc/n7b1vcGn1pr_

vandal_op

doesnt have jom make file

https://prnt.sc/C683RFG_Wa2r

vandal_op

alt text

I seriously don't understand qt, I just want to compile as static and I couldn't do it in 3 days..

Chris Kawa

Have 3 folders (you can name them however you want):

/src
    //this is where Qt sources are
/build
   // this is where you build
/install
   //this is where you install

From start menu open x64 Native Tools Command prompt for VS. You don't need admin privileges.
cd to your build directory (not src!)
In your build directory:
../src/configure -prefix <full path to install dir> -static -static-runtime <any other options you want>
cmake --build . --parallel
cmake --install .
if you also built debug version then also cmake --install . --config Debug
That's it, 3 or 4 commands.

vandal_op

@Chris-Kawa
alt text
it was running fine but still gave an error