If you are building static, you can use the ld.gold linker which prunes a lot of unused code off, and maybe add in -Os to QMAKE_LFLAGS. It might not hurt to do a second "strip" after your executable is built too. Anything using location or webkit is going to pull in a lot though.
On Thu, Aug 26, 2021 at 12:59 AM Mitch Curtis <mitch.cur...@qt.io> wrote: > There is this useful website: > > https://qtlite.com/ > > Pick e.g. Qt 5.15.x (it seems that the Qt 6 versions don't work with it), > then the modules you use, and it will give you a complete list of every > feature you can disable for that module. > > Although like Thiago says, not all of them are guaranteed to result in a > successful build. There are a huge number of combinations, and Qt's CI > already has to test with lots of different target platforms, so it only > checks a limited set of features. If you're going to disable a lot of > features, you'll probably want to get comfortable with Qt's contribution > process in order to fix any build breakages. > > > -----Original Message----- > > From: Interest <interest-boun...@qt-project.org> On Behalf Of Ben > Cottrell > > Sent: Thursday, 26 August 2021 4:28 AM > > To: interest@qt-project.org > > Subject: [Interest] Installation Sizes for Applications using Qt > > > > Qt is becoming more and more feature rich, but applications aren't > getting > > any smaller. I wish there was easier ways of configuring and building Qt > with > > shared libraries containing only the necessary functionality. Maybe more > > modularity is the answer. > > > > I want to comply with the LGPL license, but I wish the libraries were > smaller. > > I've tried building Qt from source, without success on GNU/Linux. > > > > I've also tried Sciter, which is a single library for Microsoft Windows, > Apple > > macOS and GNU/Linux. This and an executable using the library at runtime > > come in at around ~11MB. > > > > On other systems where Qt libraries are not installed system wide, such > as > > Microsoft Windows, it can be several times bigger in total. > > > > I could use smaller libraries like Sciter, but I miss out on the > versatility of Qt's > > API's, and it's implementations for all sorts of devices and operating > systems. > > > > Can we make it easier to reduce application installation sizes? > > _______________________________________________ > > Interest mailing list > > Interest@qt-project.org > > https://lists.qt-project.org/listinfo/interest > _______________________________________________ > Interest mailing list > Interest@qt-project.org > https://lists.qt-project.org/listinfo/interest > -- Chris Benesch BeneschTech, LLC
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