[Gate-users] Installing GATE on Ubuntu 9.04 - linking error

[Stiller, Wolfram]

Dear Fares,



Errors flagged as "/usr/bin/ld: skipping incompatible /home/fares/root/lib/libCore.so when searching for..." usually are caused by the linker finding the library it is searching for but that library being compiled for a different kind of system. Normally these errors are seen on 64 bit linux systems when compiling for 64 bit if the libraries installed which are linked against are 32 bit. On some systems you will see the warning without getting an error: in that case the linker first finds the 32 bit library, e.g. installed for compatibility reasons; then it comes across the 64 bit library which it links against. I suspect you are trying to install on a 64 bit system, but you probably have installed a version of Root which has been compiled for 32 bit. Please check for that. If so, the solution is simple: either download and install a 64 bit pre-compiled Root version or download the Root sources and compile from scratch. I'd do the latter...



Hope the given information is of use.



Best regards,



Wolfram







Dr. Wolfram Stiller, Dipl.-Phys.



Universitätsklinikum Heidelberg

Abteilung für Diagnostische und Interventionelle Radiologie

Im Neuenheimer Feld 110

D-69120 Heidelberg

Germany



E-mail: wolfram.stiller at med.uni-heidelberg.de



Tel.: +49 (0) 6221 56 37240 or

       +49 (0) 6221 56 6434





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-----Ursprüngliche Nachricht-----
Von: gate-users-bounces at lists.healthgrid.org [mailto:gate-users-bounces at lists.healthgrid.org] Im Auftrag von Fares Alhassen
Gesendet: Freitag, 16. Oktober 2009 23:42
An: Chris Reynolds
Cc: gate-users at lists.healthgrid.org
Betreff: Re: [Gate-users] Installing GATE on Ubuntu 9.04 - linking error



Thanks for the advice, Chris. I tried making GATE again but I still received the same error message:



Using granular libraries ...

Linking Gate

/usr/bin/ld: skipping incompatible /home/fares/root/lib/libCore.so when searching for -lCore

/usr/bin/ld: cannot find -lCore

collect2: ld returned 1 exit status

make: *** [bin/Linux-g++/Gate] Error 1



Maybe your version of ROOT is different or the way you installed ROOT is different? My ROOT version is 5.20 and I think I installed it using the binary for RedHat Linux:

http://root.cern.ch/root/Version520.html



Sincerely,

Fares





On Fri, 16 Oct 2009 12:13:44 +0100

 Chris Reynolds <C.Reynolds at westminster.ac.uk> wrote:

>I had linker errors for the same platform, which were solved with a

>simple: make clean

>

>before re-making: make

>

>sounds simple but, worked for me!

>

>Chris

>

>On Thu, 2009-10-15 at 11:43 -0700, Fares Alhassen wrote:

>> Dear all,

>>

>> Hi, I'm trying to install GATE on my Ubuntu 9.04 system. I have already installed CLHEP, geant4, and root. When I try to compile GATE, everything works fine except for a few warning messages. However, I get an error message during linking. Here's the output after the compilation is complete:

>>

>> Using granular libraries ...

>> Linking Gate

>> /usr/bin/ld: skipping incompatible /home/fares/root/lib/libCore.so when searching for -lCore

>> /usr/bin/ld: cannot find -lCore

>> collect2: ld returned 1 exit status

>> make: *** [bin/Linux-g++/Gate] Error 1

>>

>> Any suggestions? Please let me know if you need more info.

>>

>> Sincerely,

>> Fares

>>

>>

>> ------------------------------------------------

>> Fares Alhassen

>> Associate Specialist

>> UCSF Physics Research Laboratory

>> Department of Radiology and Biomedical Imaging

>> University of California, San Francisco

>> web: http://radiology.ucsf.edu/physics

>>

>> _______________________________________________

>> Gate-users mailing list

>> Gate-users at lists.healthgrid.org

>> http://lists.healthgrid.org/mailman/listinfo/gate-users

>

>

>--

>The University of Westminster is a charity and a company limited by

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>309 Regent Street, London W1B 2UW, UK.



------------------------------------------------

Fares Alhassen

Associate Specialist

UCSF Physics Research Laboratory

Department of Radiology and Biomedical Imaging

University of California, San Francisco

185 Berry Street, Suite 350 BOX # 0946

San Francisco, CA 94143-0946 (94107 UPS/FedEx/DHL)

email: fares.alhassen at radiology.ucsf.edu

T: (415) 353-9438

F: (415) 353-9421

web: http://radiology.ucsf.edu/physics



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