[Gammaray-interest] 32bit on 64bit system

[hg at technosis.de]

Am 23.04.2014 09:45, schrieb Peter Kümmel:
> On 23.04.2014 09:31, hg at technosis.de wrote:
>>
>>
>> Am 23.04.2014 08:49, schrieb Peter Kümmel:
>>> On 22.04.2014 23:30, hg at technosis.de wrote:
>>>> Hi,
>>>>    thanks for your response. I did already play with
>>>> cmake/GammaRayProbeABI.cmake
>>>>
>>>> CMAKE_SYSTEM_PROCESSOR always contains x86_64
>>>> and even if I hardcode GAMMARAY_PROBE_ABI to "qt5.2-
>>>> i686" it still assumes a 64bit compile including 64bit Dlls from
>>>> /usr/lib64/ ...
>>>
>>> And what Qt version did cmake find for _building_ gammaray?
>>> Does it also use x86_64 even if build with i686?
>>> Have you changed PATH so qmake is the one from qt5.2-i686?
>>>
>>> Peter
>>
>> the qmake in path is the one from the 32bit version. All Qt-references
>> in build/CMakeCach.txt are pointing to the 32bit version.
>>
>> The final build error I get is:
>>
>> /usr/local/Qt/5.2.1/lib/libQt5Core.so.5.2.1: could not read symbols:
>> File in wrong format
> 
> Have you installed the packages to run 32bit apps on a 64bit machine?
> 
> sudo apt-get install multiarch-support

I'm on openSUSE Linux. There is 32 bit support by other packages out of
the box.
At least I'm building and running 32bit programs based on Qt all the time.

Anyway, to solve the issue for me I might simply install 32bit Linux in
a virtual machine and build gammaray there.

Thanks for your help.

Regards
Heiko

> 
>>
>> So the 32bit Version of Qt is linked, everything else seems to be 64bit.
>>
>> What is the correct way to define such a build? Maybe I'm missing a
>> setting. What I do is downloading your gammaray2.0.2,
>> create a build subdir and there execute a bash script:
>>
>> export QTDIR=/usr/local/Qt/5.2.1
>> export QMAKESPEC=/usr/local/Qt/5.2.1/mkspecs/linux-g++-32
>> export PATH=/usr/local/Qt/5.2.1/bin:$PATH
>> cmake ..
>> make
>>
>>
>> Regards
>> Heiko
>>
> 
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