17.01.2016, 17:30, "Elvis Stansvik" <elvst...@gmail.com>: > 2016-01-17 14:48 GMT+01:00 Elvis Stansvik <elvst...@gmail.com>: >> Hi all, >> >> In an effort to cut down on the size of the standalone ZIP >> distribution of my small command line tool [1] which only uses QtCore, >> and which to my knowledge does not depend on any localization >> features, I'd like to try replacing the icudtXX.dll that I currently >> take from the Qt bin directory with a custom one built using the ICU >> Data Library Customizer [2]. > > I've slightly misunderstood how the ICU Data Library Customizer works. > I thought it would generate a icudtXX.dll, but it generates a .dat > file to be used in the compilation of ICU. > > So now that I know that I have to re-build ICU with this .dat file, my > question are: > > 1. Is it safe to replace the three icuXXXX.dll DLL files without also > re-building Qt, provided that I use the exact same ICU version, > compiled with the exact same compilation flags, but with a different > .dat file?
You can rebuild ICU in a way that .dat file is loaded at runtime and you can do any customizations you like without messing with libraries. See documentation on ICU site. > > 2. If so, which parts of the .dat file can I safely exclude with the > ICU Data Library Customizer? I don't think I need any of the features > which Qt uses ICU for, but are there some parts that must be included > for Qt to function at all? > > 3. Where can I find out how the ICU bundled with official Qt builds was built? > > Cheers, > Elvis > >> My questions are: >> >> 1. Is this is safe to to replace icudtXX.dll without replacing the >> other two ICU DLLs (icuinXX.dll and icuucXX.dll) and re-building the >> Qt library itself? >> >> 2. Are the ICU build options / data config used for the ICU DLLs that >> comes bundled with official Qt builds documented somewhere? I tried >> looking in the `qtqa` repo, but found no ICU build scripts or similar >> there. I know that Qt hosts some pre-built ICU version at [3]. Are >> these the ones shipped with official Qt builds? If so, how were they >> built? >> >> I'm currently using MSVC on Appveyor to build my standalone ZIP, and >> I'm using the official builds of Qt. I know I can completely cut out >> the dependency on ICU by re-building Qt, but I'm looking for solution >> where I don't have to do that. >> >> If it's unsafe to replace icudtXX.dll without also re-building Qt, >> I'll abandon the idea. If it's possible if I also replace the other >> two ICU DLLs, then I'll consider it. >> >> I know people don't really care if the size of a package is 4 MB or 11 >> MB, but it just feels a bit silly that 60% of the binaries in my >> package are not really needed. >> >> Thanks in advance. >> >> Elvis >> >> [1] https://github.com/estan/protoc-gen-doc >> [2] http://apps.icu-project.org/datacustom/ICUData54.html >> [3] http://download.qt.io/development_releases/prebuilt/icu/prebuilt/ > > _______________________________________________ > Interest mailing list > Interest@qt-project.org > http://lists.qt-project.org/mailman/listinfo/interest -- Regards, Konstantin _______________________________________________ Interest mailing list Interest@qt-project.org http://lists.qt-project.org/mailman/listinfo/interest
