I am very interested in trying out your solution. Could you share the required steps?
Thx. On Fri, Jan 29, 2021, 09:25 Uhrig, Stefan <stefan.uh...@sap.com> wrote: > TL;DR: It is currently possible to build the QGIS core app with Visual > Studio 2019 and vcpkg, which makes debugging QGIS dependencies easy. > > > > > > Hi all, > > > > Some time ago I discovered vcpkg (https://github.com/microsoft/vcpkg). > vcpkg is a package manager that downloads package source code to your local > machine and builds the package locally. Recently, I discovered that vcpkg > should be able to provide all dependencies to build at least the QGIS core > application. Hence, I gave it a try. > > > > Basically, it worked out of the box. I started with a fresh Windows 10 > installation, installed Visual Studio 2019 Community Edition, Git, vcpkg, > Python 3 and flex and bison for Windows. I fetched all other dependencies > via vcpkg. It was not necessary to even touch a single file in the > repository. I could just open the main CMakeLists.txt file in Visual Studio > and only had to tweak the CMake cache (the CMake find macros that come with > QGIS are not aware of vcpkg, so I had to set some paths manually). I had to > switch off some extensions though as the required dependencies were not > available via vcpkg (WITH_BINDINGS, WITH_QGIS_PROCESS, WITH_QTWEBKIT). The > build did not report any errors, I could start the application and it seems > to work, but I did some light testing only. > > > > I mainly tried it because I enjoy debugging with Visual Studio more than > with gdb (or gdb wrapped in some IDE). In my experience, the performance of > the Visual Studio debugger is better and it is more stable, especially in > long debug sessions. > > > > I don’t want to promote official building support of QGIS with vcpkg. > Providing the dependencies via OSGeo4W is much more reliable. However, if > you don’t mind the experimental nature of this setup and you want to be > able to debug into QGIS’ dependencies, you might give it a try. Especially, > if you want to track the cause of a crash in one of QGIS’ dependencies, > this setup might be helpful. You have the source code and debug versions of > the dependencies, so the debugger will jump to the crashing code line and > you can inspect all the variables of the dependency. > > > > If someone is interested in trying it, give me a note. I can then assemble > detailed instructions on how to make it work. It took me a while to figure > out which packages are needed and how the CMake cache needs to be tweaked. > > > > Best regards, > > Stefan > > > > > > > _______________________________________________ > QGIS-Developer mailing list > QGIS-Developer@lists.osgeo.org > List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer >
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