On 27 July 2015 at 13:08, Aram Hăvărneanu wrote: > 'd expect GCC compiling Plan 9 at a speed reasonably comparable to kencc. I used gcc for one of my own OS projects years ago, without all the #include crud. It is slow. For one thing, it still(!) produces textual assembly code (because the PDP-11 compiler did that) which must then be assembled.