How does one build qt 4.8 projects on qt 5?
I use the greaterThan(QT_MAJOR_VERSION, 4): QT += widgets and added -static but the compiled file throws runtime errors on opening or sometimes closing. Is there anything else to do?
I don't know about building a 4.8.x bitcoinQt on a Qt 5.x system? But when I build 4.8.x on a 4.8.x (Windows 8.1) system, I found I got similar errors if I didn't delete all the .obj & other files in the build directory. The make file isn't too bright about what needs to be compiled and what doesn't.I use the greaterThan(QT_MAJOR_VERSION, 4): QT += widgets and added -static but the compiled file throws runtime errors on opening or sometimes closing. Is there anything else to do?
Ron
My build dir is already clean. I compiled a clean source. No luck so far. I think this runtime has to do with how qt is not statically linking libs. I pasted some dlls into the coins release folder but no dice.
If you look at message #1 in this forum it is not clear what Qt is created on one's system. I did read, but can't find the link now, that one needs to build a set of libraries for Qt that are dynamic for the use of Qt creator and Qt designer (if you use them) and a set that is static for building one's applications. I don't know if that is so, nor how one would keep the environment straight
Ron
I still haven't figured this one out. And I stopped hacking at it for now. Did you find anything helpful?
I use this and it works fine
Quote
greaterThan(QT_MAJOR_VERSION, 4) {
QT += widgets
DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0
}
QT += widgets
DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0
}
if you have errors, post them here, so people can help you.
I have that in my code. My qt version is 5.3. The app starts fine. When I open debug window and enter any word or whenever I close the wallet. it closes with generic "this application has requested the runtime to terminate in an unusual way"
I noticed the final qt file size is only 9.few mb which is low if qt would statically link libs.
How big is your Qt exe? ~7MB? 27MB?
I can't find the actual link, but here is a parallel discussion,
http://tdm-gcc.tdragon.net/quirks
which I think is apropos. It seems that there are some exceptions being thrown due to the Qt linking perhaps?
I found similar errors going back to linking bitcoin-qt 0.8.1! I was able to get rid of them and get a stable exe by removing the link arguments
Code:
-static-libgcc \
-static-libstdc++ \
-static \
The test for me was using any command in the help->debug window->console, in addition to your actions. But this is for Qt 4.8.4, not 5.x-static-libstdc++ \
-static \
Ron