https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77691
--- Comment #47 from dave.anglin at bell dot net --- On 2021-02-17 11:46 a.m., redi at gcc dot gnu.org wrote: > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77691 > > --- Comment #46 from Jonathan Wakely <redi at gcc dot gnu.org> --- > (In reply to John David Anglin from comment #45) >> It seems we have 8-byte alignment specified using std::max_align_t and >> 16-byte >> alignment for pthread mutexes and malloc. > That's not a libstdc++ issue though. std::max_align_t isn't defined by > libstdc++, it comes from GCC's stddef.h Thanks, looking at it.