On Thu, 2011-03-31 at 11:49 +0200, Alberto Luaces wrote: > Grahame Bowland writes: > > > Hi all > > > > I'm shipping a version of OpenSceneGraph to users which has been > > compiled with G++ 4.4.3. I've also compiled my app with this version of > > G++. > > > > I'm now compiling the same OpenSceneGraph source code (2.8.2-rc4) with g > > ++ 4.5.2. Running my g++ 4.4.3 compiled application against this library > > crashes in a number of places, all within OpenSceneGraph. I've updated > > libstdc++ to the 4.5.2 version. The problem definitely seems to be > > within OSG, other C++ code runs fine. > > > > I realise this might be a whacky thing to do be doing. Does anyone have > > pointers as to what might be going wrong - perhaps conditionals in > > header files that evaluate differently with different versions of the > > compiler? > > Might be; you could the CMakeCache.txt files from both builds of OSG in > order to check for different configurations. I'm thinking specifically > about the builtin atomic support from OpenThreads.
Hi Alberto Thanks very much, that was it! gcc-4.4.3 was failing the _OPENTHREADS_ATOMIC_USE_GCC_BUILTINS test, which succeeded for 4.5.2. That changed the "Atomic" header file, which presumably changed the size of a bunch of important classes. Making sure that test fails solves my problem. Thanks again! Grahame _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
