It appears that the issue is that OpenSceneGraph is linked against libstdc++, while my application was being linked against libc++.
According to the documentation for libc++ ( http://libcxx.llvm.org ), the two are not ABI compatible, and with the amount of inline code used in OpenSceneGraph, it's not surprising that the two don't co-exist. Linking my application against libstdc++ stopped it from crashing, which should solve the issue for now, but I'd really like to be using libc++ instead, because it brings C++11 compatibility as well as performance improvements. So, what would it take to configure OpenSceneGraph's build environment to link against libc++, rather than libstdc++? - Ron On Nov 8, 2013, at 10:37 PM, Ronald Aldrich <[email protected]> wrote: > Hello All, > > I'm new to OpenSceneGraph, so please bear with me. > > I'm attempting to write a Mac OS X native (cocoa) application that uses > OpenSceneGraph, and I'm having some difficulty. > > I created an XCode project to build OpenSceneGraph as a set of frameworks > (Using CMake), and I think I was mostly successful at that. > > Now, I'm trying to use those frameworks within my own application, and having > some difficulty. > > I've created a class (OSGView) along the lines of the OSGViewerCocoa > OSGViewer class - simplified, and modified for ARC. That class doesn't > populate the scene data, and when the application runs, a view filled with > blue is displayed - so good, so far. > > Next, I tried to create a triangle mesh to populate the scene data with, and > that's where my problem occurs - when one of the array objects I created is > deleted, the application crashes. > > I can simplify the problem down to the following: > > - (void) test > { > osg::ref_ptr<osg::Vec3Array> theVertices = new osg::Vec3Array(0); > } > > When the Vec3Array is deleted, it crashes at the end of Object::~Object(), > with the code > > Thread 1: EXC_BAD_ACCESS (code=1, address= 0xfffffffffffffff8) > > I then thought I'd go back to basics, and build the OSGViewerCocoa example, > to see how it works, but when I build it, all I get is a unix executable > (OSGViewerCocoad), which doesn't run because it isn't assembled as a complete > Mac application. > > I suspect that the problem I'm having is caused by a mix of build > environments - CMake for OpenSceneGraph, and XCode (LLVM) for my application, > but I've got no idea how to resolve that since CMake doesn't appear to be > able to create complete applications. > > So, does anyone have a suggestion? > > TIA, > > Ron Aldrich > > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
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