https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70592
--- Comment #4 from Dominique d'Humieres <dominiq at lps dot ens.fr> --- > I am using OSX but I agree, after building the compiler from the tip > of gcc-5-branch, that the problem does not exist there, but is present > at gcc-5_3_0_release. Indeed! but nothing can be done for 5.3.0 and 5.4.0 will be released soon.