configure the build: -Wno-dev: what to do with it?
-
I use to compile Qt from the sources in the tar-file that can be found at
https://download.qt.io/archive/qt/...After unpacking I run the "configure" script to obtain the build configuration.
I use CMake with ninja as the generatorDuring the configuration, tons of warnings fly over the screen, many of them with the mysterious remark
"This warning is for project developers. Use -Wno-dev to suppress it."How am I supposed to provide this flag? It is not an option of the configure script.
Thanks
Bertwim -
Simply ignore it. Why do you bother?
-
Then modify the configure script to pass this.
The important stuff is in the summary at the end where you won't find such messages. -
I'm not an expert in this, but as I understand it
-Wno-devis not a parameter for the compiler but for cmake itself. So, when invoking CMake, just provide this as additional parameter:cmake -Wno-dev ...(where...are the parameters you usually provide to cmake). -
@SimonSchroeder You are correct but the configure script provided by Qt (which more or less only calls cmake) has no option to pass this. Otoh when compiling Qt from source I would say you're a developer and you may be interested in these warnings.
-
@Christian-Ehrlicher I agree with @SimonSchroeder that such an option is needed. Being a developer does not mean that one also is a Qt-developer. I am only a Qt user, but I do need to build from source. If there would be only a few of these warnings it would be bearable, but the number of them exceeds the pain barrier. Moreover, in between all this noise there are other comments/warnings that are relevant for a 'personal' build.
-
Then modify the configure script. Best provide a patch so it gets properly upstreamed
-
@Christian-Ehrlicher Well, I tried the obvious, i.e. adding the option -Wno-dev to the two lines with 'cmake' in the configure script. That didn't work. Hopefully, somebody who understands Qt's cmake-building can do it.
