Title: GCC 5 Defaults to the New C++11 ABI Author: Mike Frysinger <[email protected]> Content-Type: text/plain Posted: 2015-10-02 Revision: 1 News-Item-Format: 1.0 Display-If-Installed: >=sys-devel/gcc-5
GCC 5 uses the new C++ ABI by default. When building new code, you might run into link time errors like: ...: undefined reference to '_ZNSt6chrono12steady_clock3nowEv@GLIBCXX_3.4.17' Or you might see linkage failures with "std::__cxx11::string" in the output. These are signs that you need to rebuild packages using the new C++ ABI. You can quickly do so by using revdep-rebuild like so: # revdep-rebuild --library 'libstdc\+\+\.so\.6' For more details, feel free to peruse: https://developerblog.redhat.com/2015/02/05/gcc5-and-the-c11-abi/ https://blogs.gentoo.org/blueness/2015/03/10/the-c11-abi-incompatibility-problem-in-gentoo/
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