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Forum Update on Monday, May 27th 2025

Qt 4.8.6 installation on Ubuntu 18.04

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  • J Offline
    J Offline
    Johann
    wrote on last edited by
    #1

    Hello

    I am fairly new to Qt and trying to install version 4.8.6 open source on Ubuntu 18.04 LTS to run other simulations. I have been successful before in installing it on 16.04 LTS but now I have received the following error during installation:

    /usr/include/openssl/ossl_typ.h:107:16: note: forward declaration of ‘DSA {aka struct dsa_st}’
    typedef struct dsa_st DSA;
    ^~~~~~
    Makefile:17742: recipe for target '.obj/release-shared/qsslkey.o' failed
    make[1]: *** [.obj/release-shared/qsslkey.o] Error 1
    make[1]: Leaving directory '/home/wiggert/Programs/Qt/qt-everywhere-opensource-src-4.8.6/src/network'
    Makefile:279: recipe for target 'sub-network-make_default-ordered' failed
    make: *** [sub-network-make_default-ordered] Error 2

    Can anyone please help?

    Thanks in advance

    1 Reply Last reply
    0
    • SGaistS Offline
      SGaistS Offline
      SGaist
      Lifetime Qt Champion
      wrote on last edited by
      #2

      Hi and welcome to devnet,

      Ubuntu 18.04 provides Qt 4.8.7. It would be simpler to install that one using the package manager. It will already support the OpenSSL version provided by the distribution.

      Interested in AI ? www.idiap.ch
      Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

      J 1 Reply Last reply
      3
      • SGaistS SGaist

        Hi and welcome to devnet,

        Ubuntu 18.04 provides Qt 4.8.7. It would be simpler to install that one using the package manager. It will already support the OpenSSL version provided by the distribution.

        J Offline
        J Offline
        Johann
        wrote on last edited by
        #3

        @SGaist Hi there. Thank you for the advice. I will try that!

        All the best,
        Johann

        1 Reply Last reply
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