https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70722
--- Comment #9 from Andrew Pinski <pinskia at gcc dot gnu.org> --- (In reply to Nadav Har'El from comment #8) > This issue was closed as supposedly it only affects Firefox's build. It > definitely does not - it affects any project which attempts to replace the C > header files (or just one or few of them) but leave the C++ header files > untouched. But all of those projects are broken the same way as Firefox was broken. You can't expect replacing standard C library headers and something not breaking.