https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82092
--- Comment #21 from zf <zfefm at gmx dot de> --- With the patch, make of gcc8.2.0 runs without errors on OS 10.9.5. The produced compiler builds .o files of a test program, but I have a problem with linking. This could be my fault, I am not that familiar with the needed paths. I Installed gcc the new recommended way, in a own folder and might have missed setting some paths. yves$ echo $PATH /usr/local/gcc-8.2/bin:/opt/local/bin:/opt/local/sbin:/opt/local/bin:/opt/local/sbin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/local yves$ echo $DYLD_LIBRARY_PATH /usr/local/gcc-8.2/lib yves$ gcc-8.2 hello-world.cpp Undefined symbols for architecture x86_64: "std::basic_ostream<char, std::char_traits<char> >::operator<<(std::basic_ostream<char, std::char_traits<char> >& (*)(std::basic_ostream<char, std::char_traits<char> >&))", referenced from: _main in cc3Uycyg.o "std::ios_base::Init::Init()", referenced from: __static_initialization_and_destruction_0(int, int) in cc3Uycyg.o "std::ios_base::Init::~Init()", referenced from: __static_initialization_and_destruction_0(int, int) in cc3Uycyg.o "std::cout", referenced from: _main in cc3Uycyg.o "std::basic_ostream<char, std::char_traits<char> >& std::endl<char, std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&)", referenced from: _main in cc3Uycyg.o "std::basic_ostream<char, std::char_traits<char> >& std::operator<< <std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*)", referenced from: _main in cc3Uycyg.o ld: symbol(s) not found for architecture x86_64 collect2: Fehler: ld gab 1 als Ende-Status zurück