https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70742
--- Comment #6 from Daniel Gutson <daniel.gutson at tallertechnologies dot com> --- (In reply to Marc Glisse from comment #5) > It seems to me that the reason we don't already have div as a builtin is > that we need to know the layout of div_t. > > In a header, you don't really need inline asm: > inline div_t div(int a, int b){ div_t q; q.quot=a/b; q.rem=a%b; return q; } :) that was the whole discussion with the glibc maintainers: they don't want inline functions. Please look at the discussions there, and consider to join.