embed qt dlls in exe

user4592357

i'm building a small application using visual studio.
however, i need to provide Qt5Core.dll, Qt5Gui.dll and Qt5Widgets.dll with the .exe.
is there a way to embed (make a part of) the libs (Qt5Core.lib, etc.) into the executable?

mrjj

Hi
Yes its called static linking but it requires a commercial license unless you app is
open source.

https://wiki.qt.io/Build_Standalone_Qt_Application_for_Windows

user4592357

i have the license

mrjj

Super, then you just need to build a static version of Qt and compile app with it.

user4592357

actually i only have the installer of qt, but also the libs from the installation. can't i do it using those?

mrjj

@user4592357
well you need to get the source code of Qt.
The installer has option for that.
You might need to install some extra stuff.

I found these helpful with visual studio
https://github.com/fpoussin/Qt5-MSVC-Static

mrjj

Hi
No, the version you can download is for dynamic loading only.
You can only do static if the Qt version is made for that.
Make sure to use all cores of your pc as else it takes long time to compile :)

user4592357

i built static version of qt using the instructions from here: Build Qt 5.7 Statically Using MSVC.

i also setup the kit in qt creator as described in the article. now when i try to build the app, this is what i get:

17:45:08: Running steps for project untitled...
17:45:08: Starting: "C:\Qt\Static\5.10.1\bin\qmake.exe" C:\Users\user\Documents\untitled\untitled.pro -spec win32-msvc "CONFIG+=qml_debug"
Could not find qmake configuration file win32-msvc.
Error processing project file: C:\Users\user\Documents\untitled\untitled.pro
17:45:08: The process "C:\Qt\Static\5.10.1\bin\qmake.exe" exited with code 3.
Error while building/deploying project untitled (kit: Qt 5.10.1 Static)
The kit Qt 5.10.1 Static has configuration issues which might be the root cause for this problem.
When executing step "qmake"
17:45:08: Elapsed time: 00:00.

mrjj

Hi
and its just a new test project ?
and you do in fact have the win32-msvc file/folder?