Re: [osg-users] [build] undefined symbol: _ZN11OpenThreads6AtomicmmEv
Hi Yurii, I followed your instructions and rebuilt OSG libraries. Then I rebuilt my app and tried it. It worked. Thank you! Cheers, Huron -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=33476#33476 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] [build] undefined symbol: _ZN11OpenThreads6AtomicmmEv
Hi Robert, I am linking with OpenThreads. About the Makfile: The application that I am trying run with intersection checks from OSG has its own Makefile that I do not want to change other than adding the includes and libraries from OSG. Since, that procedure is giving me the undefined symbol error I am now trying to compile and run the osgintersction example using your recommended build procedure for examples. I ran cmake and make in the OpenSceneGraph folder to create the libraries. However, there were no Makefiles generated for the examples. That's why I went to the OpenSceneGraph/examples/osgintersection folder and ran cmake. Then I run into cmake not recognizing SETUP_EXAMPLE project. What I like to know is whether you have the examples setup to have Makefiles created using cmake or we just write our own Makefile and link with the libraries just like I did with my application. If you have the examples set up to have Makefiles generated thru cmake, I probably am not following the correct procedure and that is probably why I am runni ng into the SETUP_EXAMPLE problem. Thank you! Cheers, Huron -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=33260#33260 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] [build] undefined symbol: _ZN11OpenThreads6AtomicmmEv
Hi Huron, I've experienced the same problems with unresolved symbols from OpenTreads. The problem was solved by full rebuild of OSG. Just delete CMake cache, reconfigure and build. Once I've fought unexpected runtime errors (segmentation faults) in simple OSG apps (even in examples) and they were also solved by full rebuild. Seems that something went wrong during compilation process, but compiler/linker somehow have missed these errors. Regards, Yurii ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] [build] undefined symbol: _ZN11OpenThreads6AtomicmmEv
Hi, When I run my application (on Linux Debian) which has call to do intersection tests, I get: undefined symbol: ZN11OpenThreads6AtomicmmEv when the application is trying to call addIntersector() function of the osgUtil::IntersectorGroup. In my application's Makefile I only link with libOpenThreads.so, libosgDB.so and libosgTerrain.so. Is that not enough or is it some other problem? Thank you! Cheers, Huron -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=33104#33104 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] [build] undefined symbol: _ZN11OpenThreads6AtomicmmEv
Hi Huron, On Wed, Oct 27, 2010 at 1:02 AM, Huron Sam Perera hsper...@bellhelicopter.textron.com wrote: When I run my application (on Linux Debian) which has call to do intersection tests, I get: undefined symbol: ZN11OpenThreads6AtomicmmEv when the application is trying to call addIntersector() function of the osgUtil::IntersectorGroup. In my application's Makefile I only link with libOpenThreads.so, libosgDB.so and libosgTerrain.so. Is that not enough or is it some other problem? I'd add libosg.so into the list, but I don't think it'd address the link problem as it relates to OpenThreads. The undefined symbol itself makes me wonder if you have libs and headers that conflict in their implementation of the OpenThreads::Mutex. Did you build the OSG yourself, or pull it in from debian repositories? Which version of the OSG? Have a check of your include/OpenThreads/Config to see what it has defined. I'm using Kubuntu so it's a debian based system and build the OSG myself (;-) and my include/OpenThreads/Config looks like: // ... comments removed .. so focus on the important bits: #ifndef _OPENTHREADS_CONFIG #define _OPENTHREADS_CONFIG #define _OPENTHREADS_ATOMIC_USE_GCC_BUILTINS /* #undef _OPENTHREADS_ATOMIC_USE_MIPOSPRO_BUILTINS */ /* #undef _OPENTHREADS_ATOMIC_USE_SUN */ /* #undef _OPENTHREADS_ATOMIC_USE_WIN32_INTERLOCKED */ /* #undef _OPENTHREADS_ATOMIC_USE_BSD_ATOMIC */ /* #undef _OPENTHREADS_ATOMIC_USE_MUTEX */ /* #undef OT_LIBRARY_STATIC */ #endif In this case OpenThreads itself must also be built with atomic gcc builtins. Robert. Not that it's ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] [build] undefined symbol: _ZN11OpenThreads6AtomicmmEv
Hi Huron, On Wed, Oct 27, 2010 at 5:49 PM, Huron Sam Perera hsper...@bellhelicopter.textron.com wrote: I added libosg.so and I still get the unresolved symbol. To answer your other questions: Yes, I built OSG myself. I think I am using 2.8.3. By the way, is there any file in the dowload that tells me which version I am using? My include/OpenThreads/Config looks just like yours. So I guess I have to build OpenThreads with atomic gcc builtins. How do I do that? It should already built with built ins, otherwise the Config would be different. What is up with your system I don't know. Perhaps there is an issue with gcc on your system. What version of debian and gcc are you using? Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] [build] undefined symbol: _ZN11OpenThreads6AtomicmmEv
Hi Robert, My debian version is 5.0.2. When I type gcc -v on my system the response is (along with bunch of other information): gcc version 4.3.2 (Debian 4.3.2-1.1). Thank you! Cheers, Huron -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=33150#33150 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] [build] undefined symbol: _ZN11OpenThreads6AtomicmmEv
Hi Robert, The problem may be in the way I am linking with OSG libs in my Makefile. To check that I tried to create a Makefile for the osgintersection example. when I run cmake I get the following: The C compiler identification is GNU -- The CXX compiler identification is GNU -- Check for working C compiler: /usr/bin/gcc -- Check for working C compiler: /usr/bin/gcc -- works -- Detecting C compiler ABI info -- Detecting C compiler ABI info - done -- Check for working CXX compiler: /usr/bin/c++ -- Check for working CXX compiler: /usr/bin/c++ -- works -- Detecting CXX compiler ABI info -- Detecting CXX compiler ABI info - done CMake Error at CMakeLists.txt:7 (SETUP_EXAMPLE): Unknown CMake command SETUP_EXAMPLE. CMake Warning (dev) in CMakeLists.txt: No cmake_minimum_required command is present. A line of code such as cmake_minimum_required(VERSION 2.8) should be added at the top of the file. The version specified may be lower if you wish to support older CMake versions for this project. For more information run cmake --help-policy CMP. This warning is for project developers. Use -Wno-dev to suppress it. -- Configuring incomplete, errors occurred! Please help to get this resolved. Then I can check whether I can run this example in my system. If I am successful I will compare the Makefiles and hopefully that will resolve the udefined symbol problem. Thank you! Cheers, Huron -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=33157#33157 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] [build] undefined symbol: _ZN11OpenThreads6AtomicmmEv
Hi Huron,
On 28/10/10 9:17 , Huron Sam Perera wrote:
The problem may be in the way I am linking with OSG libs in my Makefile.
This may be a silly question, but are you linking OpenThreads?
I usually link with '-L/usr/local/lib -losgViewer -losgGA -losgDB -losgUtil
-losg
-lOpenThreads'.
To check that I tried to create a Makefile for the osgintersection example.
when I run cmake I get the
following:
Why are you creating a Makefile but are then running cmake? This doesn't make
any sense.
Do you mean you created a CMakeLists.txt file?
The C compiler identification is GNU
-- The CXX compiler identification is GNU
-- Check for working C compiler: /usr/bin/gcc
-- Check for working C compiler: /usr/bin/gcc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
CMake Error at CMakeLists.txt:7 (SETUP_EXAMPLE):
Unknown CMake command SETUP_EXAMPLE.
SETUP_EXAMPLE is an OSG-specific macro from CMakeModules/OsgMacroUtils.cmake.
The OSG root CMakeLists.txt finds the macro via these commands:
SET(CMAKE_MODULE_PATH
${OpenSceneGraph_SOURCE_DIR}/CMakeModules;${CMAKE_MODULE_PATH})
INCLUDE(OsgMacroUtils)
/ulrich
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