glibc-2.22.90-22
    
    - The generic hidden directive support is already used for
      preinit/init/fini-array symbols so we drop the Fedora-specific
      patch that does the same thing.
      Reported by Dmitry V. Levin <ldv@altlinux.org>
    - Require glibc-static for C++ tests.
    - Require gcc-c++, libstdc++-static, and glibc-static only when needed.
    - Fix --without docs to not leave info files.