Installation and Deployment

Hi! I'm in the same situation than you. Did you have success compiling the qt5 sources with dbus enabled? If so, could you please tell me how you did it? Cheers, Oscar.

Hi and welcome to devnet, Please take the time to search the forum. That question has been asked many times already. The first step is to start your application with the QT_DEBUG_PLUGINS environment variable set to 1.

Simply define QT_NO_SSL by your own when you compile your application to make sure you don't use ssl functions by accident.

Hi and welcome to devnet, Your docker container does not provide any X server for your application to connect to. Do you really need that ? Depending on what you want to do, this thread might help.

@diverger What exact Qt version did you install and how?

@Boyandin said in Qt 4.8.5 and OpenSSl 1.1.1k: Is there any "quick and dirty" hack to force QSslSocket to use OpenSSL 1.1.1? No, the API between 1.0.x and 1.1.x changed too much.

Hi As far as i understand from google its a LLVM bug but should be fixed a long time ago. Would it be possible to update to a newer version? Also, between it worked. and then stopped. can it be that you reboot the WM ? (versus pausing it)

This is still happening for latest version of the online installer (4.1.1) when installing on /opt/Qt. It gets stuck during the qt3d src extract as @Stokestack explains (36%). I have tried many suggestions without luck (inc increasing sudo time limit as suggested elsewhere, setting rw permissions on directory), but latest effort I have excluded the Sources package and it works. Tried adding Sources using maintenance update and it took a long time (1.7h, just 7mins for download) but finished successfully...

So I did find the problem in the end, installing libsystemd-dev was enough. I just needed to run ./configure recheck to remove cached configuration setups. The configure script seemed to have worked after that. Thanks a lot!

@saeedBaba Official documentation is here: https://docs.opencv.org/3.4/d3/d52/tutorial_windows_install.html You should consider asking in an OpenCV forum if you have problems building it, as OpenCV has nothing to do with Qt.

Hi and welcome to devnet, You need to look upper in the message to see exactly where it failed.

@Drazz /usr is automatically searched by tools like compiler. But /usrLocal is not, so you have to tell the compiler to also look there. "If I rsync my raspberry pi /usr/local with my ubuntu sysrooot/usr, I would be able to quit that INCLUDE path from my .pro?" - if you sync to /usr instead of /usr/local then there is no need to add anything to include paths.

@JKSH Thank you for your reply. I'm done with the question!

@jsulm Thanks I will follow the link.

@jsulm yes i downloaded the whole version. i just found out about qt and was trying to build fritzing from git, but i already gave up. i think i will try kincad or keep using tinkercad. i wanted to try fritzing just for being offline but i think they really tried to complicate / obfuscate how to build it . i tried with qt 6.1.2 the full version and failed. than i noticed what u said and tried the 6.1.1 only the mingw and mscv but was still giving error because it expects to see a qt5 version but not superior. for that u see how much its bad coded, when i add the qt 5.15 only the msvc it didnt got this error, but even then it didnt build. that project look like a total mess. i lost many and many hours trying to find in the net what it needs like openssl, libssh2. i downloaded and installed a almost a dozen more things and still dont build. like i said, they dont give clear instruction of what it need and how to build. they try to hide and obfuscate how to build it probalby because they are charging for the binaries in the site now. its not looking like a free libre software anymore.

Hi and welcome to devnet, Build OpenCV2 for arm64ld.

@Hai_China said in How to properly include openssl for a windows deployment when using mingw?: 拷贝那两个dll文件是没有用的 Please use English on the main forums. There are language specific sub forum for other languages like Chinese in the international section.

@PREMjTH-T Start here: https://doc.qt.io/archives/qt-4.8/deployment-windows.html