Hi, Unfortunately I can't offer a solution, but I thought I would mention I have come across this exact problem and have also pulled my hair out trying to find a solution. This same problem exists when building virtual planet builder, linking with osgDB causes the multiply defined symbols. I had no other issues building the 3rd party libs and osg with 2010.
The only way I could move forward was to allow multiply defined symbols (as has already been mentioned). I agree this seems dangerous and is not a solution but it has allowed me to continue working. So far it hasn't caused any issues with my vpb build. Given you have used the streams extensively without issue and it seems osgDB is the source of the trouble, have you had a look to see if there is any discernable difference between your code and that in osgDB ? I would love to find a solution to this. Cheers, Brad From: osg-users-boun...@lists.openscenegraph.org [mailto:osg-users-boun...@lists.openscenegraph.org] On Behalf Of Anders Backman Sent: Friday, 27 August 2010 4:00 PM To: OpenSceneGraph Users Subject: Re: [osg-users] OT: VS2010 LNK2005 problem related to ostringstream I have verified the build mode for all ingoing libraries. I build all the dependencies myself. Including OSG. The problem I have (which is OSG related), is that if I build without OSG support (no rendering), it all works. And I still use std::ostringstream and std::stringstream quite extensively... We still link against OpenThreads (but no rendering). So only when I link against osg (osg.lib, osgDB.lib, osgText.lib, osgShadow.lib, osgViewer.lib osgGA.lib) I get this problem. I have verified that osg (and OpenThreads) are all built consistently all over the field. Release and /MD (MultiThreadedDLL), which is default from CMake. So I can use/link against OpenThreads.lib, but not OSG... Rather nasty problem, I'm trying to reduce it, but I'm getting nowhere. And once again, same settings, same CMake version, same code all over the place, and it works in VS2008... /A On Thu, Aug 26, 2010 at 8:17 PM, Simon Hammett <s.d.hamm...@googlemail.com<mailto:s.d.hamm...@googlemail.com>> wrote: Ah ok, then next things to check: Make absolutely sure you aren't mixing up objects & libraries from the different builds. For my projects I include a vc version number in the name, so .vc7.lib/vc7.dll & .vc9.lib/.vc9.dll and I also use the vc version in the name of output & intermediate directory Then check all the code for any use of #pragma comment(lib, "libname") and make sure any preprocessor guards that select different versions have been updated to know about vc2010. On 26 August 2010 18:37, Anders Backman <ande...@cs.umu.se<mailto:ande...@cs.umu.se>> wrote: Well, I have verified that ALL the dependencies Im using are all built with /MD and NOT debug. Im building all of the dependencies for osg and our lib myself, so I got full control. Also, as I wrote before, I have even tried to build our libs using project files generated from cmake > vs2008, build with vs2008 -> works ok. Open same project files in vs2010 -> problem occurs. Im using buildscripts to build dependencies, and it all works for vs2008... No external libraries, everything is built from code. For VS2010, all the dependencies (including osg 2.8.3) builds/links fine. But for my libs, I get the linking errors. Allowing multiple symbols sounds dangerous, and it did not resolve my problem... /A On Thu, Aug 26, 2010 at 7:26 PM, Simon Hammett <s.d.hamm...@googlemail.com<mailto:s.d.hamm...@googlemail.com>> wrote: On 26 August 2010 17:35, Anders Backman <ande...@cs.umu.se<mailto:ande...@cs.umu.se>> wrote: <snip> CMake defaults to /MD code generation (MultiThreaded). Im using this consistently over all my libraries (just double checked to be sure). Never use that setting unless you know what you are doing. Change every project to Multi-threaded Debug DLL (/MDd) for Debug builds and Multi-threaded DLL (/MD) for Release builds And it will all start working. Those Runtime library settings are the number one 'gotch-ya' for Visual studio, and Cmake defaulting to them is daft. -- http://www.ssTk.co.uk _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org<mailto:osg-users@lists.openscenegraph.org> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org<mailto:osg-users@lists.openscenegraph.org> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org -- http://www.ssTk.co.uk _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org<mailto:osg-users@lists.openscenegraph.org> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org DISCLAIMER:--------------------------------------------------------------------------- This e-mail transmission and any documents, files and previous e-mail messages attached to it are private and confidential. 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