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Thread: Qt4 How to build 32-bit application on OpenSuse 11.4 x86_64?

  1. #1

    Default Qt4 How to build 32-bit application on OpenSuse 11.4 x86_64?

    Hello.
    I'm trying to build 32-bit Qt4 application on 64-bit system. I have installed Qt-Creator and in build option I set parameter
    Code:
    -spec linux-g++-32
    But still, linker is linking 64bit instead of 32-bit library. Of course compiler is returning error:
    Code:
    /usr/lib64/gcc/x86_64-suse-linux/4.5/../../../../x86_64-suse-linux/bin/ld: skipping incompatible /usr/lib64/libQtSql.so when searching for -lQtSql
    /usr/lib64/gcc/x86_64-suse-linux/4.5/../../../../x86_64-suse-linux/bin/ld: skipping incompatible /usr/lib64/gcc/x86_64-suse-linux/4.5/../../../libQtSql.so when searching for -lQtSql
    /usr/lib64/gcc/x86_64-suse-linux/4.5/../../../../x86_64-suse-linux/bin/ld: skipping incompatible /usr/lib64/libQtGui.so when searching for -lQtGui
    /usr/lib64/gcc/x86_64-suse-linux/4.5/../../../../x86_64-suse-linux/bin/ld: skipping incompatible /usr/lib64/gcc/x86_64-suse-linux/4.5/../../../libQtGui.so when searching for -lQtGui
    /usr/lib64/gcc/x86_64-suse-linux/4.5/../../../../x86_64-suse-linux/bin/ld: skipping incompatible /usr/lib64/libQtCore.so when searching for -lQtCore
    /usr/lib64/gcc/x86_64-suse-linux/4.5/../../../../x86_64-suse-linux/bin/ld: skipping incompatible /usr/lib64/gcc/x86_64-suse-linux/4.5/../../../libQtCore.so when searching for -lQtCore
    How to build 32-bit application? Am I missing something on my system?

    This is list of qt4 related library in my system:
    Code:
    libqt4-sql-mysql-4.7.1-7.2.x86_64
    libqt4-devel-doc-data-4.7.1-7.1.noarch
    kdevelop4-pg-qt-devel-0.9.0-3.1.x86_64
    mono-qt-4.6.0-3.4.x86_64
    libqt4-sql-32bit-4.7.1-7.1.x86_64
    yast2-qt-pkg-2.20.3-3.1.x86_64
    vlc-qt-1.1.8-1.pm.2.4.x86_64
    libqt4-4.7.1-7.1.x86_64
    libqt4-sql-mysql-32bit-4.7.1-7.2.x86_64
    qtcurve-gtk2-32bit-1.8.1-3.1.x86_64
    yast2-qt-2.20.4-1.2.1.x86_64
    libqt4-devel-doc-4.7.1-7.3.x86_64
    mono-qt-devel-4.6.0-3.4.x86_64
    qt4-x11-tools-4.7.1-7.3.x86_64
    libqt4-devel-4.7.1-7.1.x86_64
    libqt4-sql-4.7.1-7.1.x86_64
    libqt4-sql-sqlite-4.7.1-7.1.x86_64
    libpackagekit-qt14-0.6.12-1.4.1.x86_64
    python-qt4-4.8.3-3.2.x86_64
    yast2-qt-graph-2.19.0-4.1.x86_64
    qt-creator-2.1.0-1.3.1.x86_64
    libqt4-qt3support-32bit-4.7.1-7.1.x86_64
    libqt4-x11-4.7.1-7.1.x86_64
    libpoppler-qt4-3-0.14.4-6.1.x86_64
    libdbusmenu-qt2-0.6.6-3.1.x86_64
    yast2-control-center-qt-2.20.2-1.3.1.x86_64
    libqt4-x11-32bit-4.7.1-7.1.x86_64
    qtcurve-gtk2-1.8.1-3.1.x86_64
    kdevelop4-pg-qt-0.9.0-3.1.x86_64
    qt4-qtscript-0.1.0-10.1.x86_64
    libqt4-sql-unixODBC-4.7.1-7.2.x86_64
    libqt4-sql-sqlite-32bit-4.7.1-7.1.x86_64
    libqt4-32bit-4.7.1-7.1.x86_64
    libpolkit-qt-1-1-0.99.1-5.1.x86_64
    qt4-qtscript-doc-0.1.0-10.1.x86_64
    libqt4-sql-unixODBC-32bit-4.7.1-7.2.x86_64
    patterns-openSUSE-devel_qt4-11.4-6.9.1.x86_64
    libqt4-qt3support-4.7.1-7.1.x86_64
    pinentry-qt4-0.8.0-8.1.x86_64

  2. #2
    Join Date
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    Default Re: Qt4 How to build 32-bit application on OpenSuse 11.4 x86_64?

    I would suggest that the linker is searching the 64-bit library directory. This can be specified with the -L gcc option (although I would have thought your -spec might have taken care of it).

    If you can set gcc-specific options then I suggest you try adding -L /usr/lib

    Regards,
    Neil Darlow
    Registered Linux user #122512. Desktop Linux user for 17 years.
    Asus Eee 900: 900MHz Celeron, 1GB RAM, 12GB SSD, 915GM, openSUSE-current+Tumbleweed
    Home-built Desktop: Athlon II X2 3.3GHz, 4GB RAM, 1TB SATA, GeForce G210, openSUSE-12.1-x86_64, KDE-4.7.2

  3. #3
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    Default Re: Qt4 How to build 32-bit application on OpenSuse 11.4 x86_64?

    Hi,

    I should also add that you will require the 32-bit versions of the libraries you require to be installed in order to successfully link your application.

    Regards,
    Neil Darlow
    Registered Linux user #122512. Desktop Linux user for 17 years.
    Asus Eee 900: 900MHz Celeron, 1GB RAM, 12GB SSD, 915GM, openSUSE-current+Tumbleweed
    Home-built Desktop: Athlon II X2 3.3GHz, 4GB RAM, 1TB SATA, GeForce G210, openSUSE-12.1-x86_64, KDE-4.7.2

  4. #4

    Default Re: Qt4 How to build 32-bit application on OpenSuse 11.4 x86_64?

    Thanx for reply.
    I had specified library folder by adding link: unix::LIBS += -L/usr/lib/
    Still the same issue. Whas is name of package I should install to have 32-bit libraries?

  5. #5

    Default Re: Qt4 How to build 32-bit application on OpenSuse 11.4 x86_64?

    It is all about linker. I'm defining library folder -L/usr/lib. Linker is still linking libraries from /usr/lib64. Any sugestions?

  6. #6
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    Default Re: Qt4 How to build 32-bit application on OpenSuse 11.4 x86_64?

    Hi,

    I would suggest separating -L from /usr/lib with a space. I know it is not required for -l but I am not sure about -L.

    The 32-bit versions of libraries are packaged with -32bit in their name. Search for that in YaST2 to locate available libraries.

    Regards,
    Neil Darlow
    Registered Linux user #122512. Desktop Linux user for 17 years.
    Asus Eee 900: 900MHz Celeron, 1GB RAM, 12GB SSD, 915GM, openSUSE-current+Tumbleweed
    Home-built Desktop: Athlon II X2 3.3GHz, 4GB RAM, 1TB SATA, GeForce G210, openSUSE-12.1-x86_64, KDE-4.7.2

  7. #7
    Join Date
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    Default Re: Qt4 How to build 32-bit application on OpenSuse 11.4 x86_64?

    porterneon wrote:

    >
    > It is all about linker. I'm defining library folder -L/usr/lib. Linker
    > is still linking libraries from /usr/lib64. Any sugestions?
    >
    >

    At least (looking at your linker outut) you will need the packages

    libqt4-sql-32bit
    libqt4-x11.32bit
    libqt4-32bit

    Install them with yast.

    --
    PC: oS 11.3 64 bit | Intel Core2 Quad Q8300@2.50GHz | KDE 4.6.1 | GeForce
    9600 GT | 4GB Ram
    Eee PC 1201n: oS 11.4 64 bit | Intel Atom 330@1.60GHz | Gnome 2.32 | nVidia
    ION | 3GB Ram

  8. #8

    Default Re: Qt4 How to build 32-bit application on OpenSuse 11.4 x86_64?

    Those packages are already installed. On second computer, with fedora 14 everything is working correct. So it's must be some configuration issue. But what can it be?

  9. #9
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    Default Re: Qt4 How to build 32-bit application on OpenSuse 11.4 x86_64?

    Just make your application and RPM spec file. Register to openSUSE build service and upload app there. If everything goes right, you will have both 32 and 64 bit application built for myriad of RPM distros.
    Emil Beli
    http://www.beli.ws/blog/
    openSUSE 11.4 x64 KDE, ATI 5600, i7 dell inspire laptop

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