QT 5.2 cannot find libraries ending with e.g. *.so.0



  • Hi,
    I've just installed Qt 5.2 and tried out to compile and link a desktop application (own development), which has done fine on Qt 5.1 and Qt 4.8. I'm working on Linux Mint 15 (64bit).
    The linking process ends up with a list of system libraries that it cannot find, e.g. -lxslt -lgio-2.0 -lgstapp-0.10 and so on. All these libraries are present on my system with a different extension not "libgio-2.0.so" but "libgio-2.0.so.0". I can rename them and the linker finds it. This is a different behaviour in Qt 5.2, and very annoying because i really don't want to change the name of all these libraries manually.
    Is there a chance to revoke this change from Qt 5.1 to Qt 5.2?
    Yours pm



  • Make sure you installed the development package for those libraries.
    Don't rename runtime libraries, make symbolic links, ex.
    @
    ln -s /usr/lib/lib.so.0 /usr/lib/lib.so
    @



  • Thanks, you are right! To be precise, I didn't rename the libraries, but made symbolic links as you've supposed. I also found some missing development packages of e.g. gstreamer. My program has meanwhile compiled.
    But all this makes me really unhappy, since I would expect Qt to check for missing dependencies during the installation. (I've installed the offline script qt-linux-opensource-5.2.0-x86_64-offline.run). Furthermore, there were no similar problems with older versions of Qt.
    pm.



  • For linux is recommended to compile Qt yourself. The configure script will enable the existing libs, or disable what is not present.


  • Lifetime Qt Champion

    Hi and welcome to devnet,

    It's very difficult to make such a detection for linux as several distributions uses different package managers with different package naming etc.

    The best place to look for a dependency list is the "build Qt 5 from Git":http://qt-project.org/wiki/Building-Qt-5-from-Git page


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