On Mon, Jun 18, 2012 at 09:45:14PM +0300, Sami Liedes wrote: > $ clang++ test.cpp -o test -std=gnu++11 [...] > /usr/bin/../lib/gcc/x86_64-linux-gnu/4.7/../../../../include/c++/4.7/type_traits:256:39: > error: use of undeclared identifier '__float128' > struct __is_floating_point_helper<__float128> > ^ > 1 error generated.
There's a fix around the interwebs that fixes this issue by patching the libstdc++ headers to #undef _GLIBCXX_USE_FLOAT128 if __clang__ is defined: http://old.nabble.com/-google--Hide-all-uses-of-__float128-from-Clang-(issue6195066)-td33821546.html Sami
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