> On 9. Jun 2020, at 12:07, Bogdan Vatra <bogdan.va...@kdab.com> wrote: > > Hi, > În ziua de marți, 9 iunie 2020, la 11:13:21 EEST, Alexandru Croitor a scris: >>> On 9. Jun 2020, at 07:22, Bogdan Vatra <bogdan.va...@kdab.com> wrote: >>> >>> - is it possible to cross compile Qt in one go (just like we do with >>> qmake)? >> Could you clarify what you mean by "in one go"? >> >> If it's about building host tools as part of the cross-compilation, then no. >> You first have to build a desktop Qt, and re-use that host Qt installation >> for its tools, to cross-compile to another target. >> >> That's been one of the goals for Qt 6 regardless of build system, and has >> been communicated a while ago. > > When I'm cross-compiling Qt for a Linux device, Android, ios, etc., qmake > it's > smart enough to build everything for me: host tools and the libs for that > target in one go i.e. I type ./configure .. && make and it does all the magic > for me. > > How qt modules that have host & target libs will be built with cmake?
Like I mentioned in my previous reply, you will have to call configure && make twice, once for the host build and once for target build. And I will reiterate, this has nothing to do with CMake. A decision was made to decouple host builds from target builds, regardless of the build tool used. That magic that you rely on works in 90% cases, and breaks in weird ways for other users, as well as creating a maintenance burden for package maintainers (linux distros, Qt itself, vcpkg, conan, etc) > I'm using qmake for Qt6 when I'm doing Android work, also for this reason. > I don't want to build Qt twice just to use a "cool and superior" build system. Unfortunately that workflow will not work anymore. > > Just out of curiosity, can some pretty please remind me what are the > advantages of using cmake to build Qt over qmake? > I'm not talking about Qt users, for them we should support all (major) build > systems: qmake, cmake, meson, etc. I think those were pointed out and discussed in previous mailing list discussions. Personally i don't want to spend time to try convincing anyone in either direction. There are advantages and disadvantages, as to any solution. _______________________________________________ Development mailing list Development@qt-project.org https://lists.qt-project.org/listinfo/development
