"Symbol X has different size in shared object" bug reappears

This bug I haven't seen for quite a while has apparently reared it ugly head one more time. This is printed to stderr when I start XEmacs: {mraz}[~/work/emacs/build]$ ./src/xemacs ./src/xemacs: Symbol `toggleClassRec' has different size in shared object, consider re-linking ./src/xemacs: Symbol `labelClassRec' has different size in shared object, consider re-linking I've seen this before, and I managed to fix it by finding a magic combination of 3D Athena headers and libraries with on my system. Its reappearance is likely due to recent Athena detection rewrite in configure, but it might also be the a package upgrade. I'll be happy to provide relevant data. Any ideas?