In an environment with relatively old core components (dynamic loader and glibc) but with up-to-date binutils (perhaps built along with gcc) libatomic.so gets built in a way such that it is unusable on the build system. A similar issue was reported in a mail leading to http://gcc.gnu.org/ml/gcc-patches/2013-02/msg00315.html, but I don't view switching back to old binutils as an acceptable option.
Looking at the libatomic configury, I also do not see a way to suppress the use of GNU IFUNC symbols. Am I overlooking something, or is this an outright bug in a configuration no-one really ever thought about? At least in a non-cross build I'd expect runtime properties to be taken into account here. And for cross builds I'd expect a way to control whether the final binary would be using GNU IFUNC symbols rather than just making this dependent upon tool chain capabilities. Thanks, Jan
