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Statically compiling ICU on Linux?

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  • S Offline
    S Offline
    ScottLupton
    wrote on last edited by aha_1980
    #1

    I wanted to statically link libicu on Linux because it causes a lot of dependency problems. The expected libraries are:

    libicui18n.so.55 => not found
    libicuuc.so.55 => not found
    libicudata.so.55 => not found
    

    libicu-dev comes with .a versions of these libraries for static linking:

    /usr/lib/x86_64-linux-gnu/libicui18n.a
    /usr/lib/x86_64-linux-gnu/libicuuc.a
    /usr/lib/x86_64-linux-gnu/libicudata.a
    

    I copied these files to a libicu folder in my development directory and then added these lines to my .pro file:

    LIBS += ../libicu/libicui18n.a ../libicu/libicuuc.a ../libicu/libicudata.a
    PRE_TARGETDEPS += "../libicu/libicui18n.a" "../libicu/libicuuc.a" "../libicu/libicudata.a"
    

    Unfortunately, this doesn't work, and ldd shows that the resulting binary is still looking for libicu on the system.

    How can I statically link libicu on Linux?

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    • Christian EhrlicherC Offline
      Christian EhrlicherC Offline
      Christian Ehrlicher
      Lifetime Qt Champion
      wrote on last edited by
      #2

      you have to compile Qt with those static libs, not your app...

      Qt Online Installer direct download: https://download.qt.io/official_releases/online_installers/
      Visit the Qt Academy at https://academy.qt.io/catalog

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      • S Offline
        S Offline
        ScottLupton
        wrote on last edited by ScottLupton
        #3

        I've rebuilt Qt with the three ICU libraries and that seems to have solved the problem.

        Thanks for the help.

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