Comment 3 for bug 508702

ugly ... the upper dependencies are defined in eglibc. so the correct upgrade procedure should have been for eglibc:

 - make an 2.11 test build, ensuring these symbols still exist
 - upload an 2.10.x build with s/<<2.11/<< 2.12)
 - binNMU all packages with <<2.11 dependencies
 - upload 2.11 with << 2.12 symbols