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Thread: ld wont link when -m32 is specified on 64bit system.

  1. #1
    Join Date
    Mar 2014
    Beans
    4

    Exclamation ld wont link when -m32 is specified on 64bit system.

    Hey,
    I'm trying to compile an application which uses the boost libraries and SDL2.
    I'm trying to compile it for a 32bit Linux target, but compiling on my 64bit Ubuntu machine.
    I'm using g++ to compile and the boost 1.53 libs from the repository aswell as SDL2 from the repository.
    I use the -m32 tag for both compiler and linker options. The compile goes fine, but when i reach the linker stage i get the following output:

    Code:
    /usr/bin/ld: cannot find -lboost_system/usr/bin/ld: cannot find -lSDL2main
    /usr/bin/ld: cannot find -lSDL2
    /usr/bin/ld: cannot find -lboost_thread
    When compiling with -m64 i get no errors and the program compiles and links just fine. Same when specifying no platform.
    I have tried to find 32bit versions of the libraries in the repository but to no avail. And I don't really want to compile from source because when i try to compile boost for 32bit i just get compiler errors and nothing compiles.

    So my question is how do I compile a 32bit program that uses these libraries on a 64bit system?

    Its a pretty frustrating issue because the only 32bit linux machine I have is a small netbook which takes quite a while to compile my program on.

    Thanks for reading!

  2. #2
    Join Date
    Nov 2005
    Location
    Bordeaux, France
    Beans
    11,297
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: ld wont link when -m32 is specified on 64bit system.

    You need to install the 32-bit versions of those libraries. Try appending :i386 to the package names in apt-get install.
    「明後日の夕方には帰ってるからね。」


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