* Linus Torvalds: > We use the compiler intrinsics without the C library header files for > everything else, so doing so for <stdarg.h> seems to actually be a > clarification and improvement. This is an exaggeration. On several architectures, the kernel cannot use the vector built-ins directly. Some of the implementing headers are very special and intertwined with the compiler. <stdarg.h> is currently not such a case, but it's just not technically not feasible to avoid dependencies on all compiler headers. I think this considerably weakens the case against <stdarg.h> because the compiler version is so obviously harmless. What the kernel is doing here is imposing an unnecesary constraint on compiler development. Basically, you are telling compiler writers that implementing features with the help of header files is a bad idea because it makes it more difficult to use them from the kernel. (See the proposed exceptions for vector code.) Thanks, Florian
