On Mon, 25 Jun 2018 at 22:39, U.Mutlu <um@xxxxxxxxxxx> wrote: > > Hi, > > it seems the latest gcc (v9 svn) unfortunately still needs > the C headers of the (old) system compiler, for example stdio.h . Those headers are not part of GCC, they come from the C library. > Is it possible to let the build process create also new C headers, No, because GCC doesn't create those headers, they're not part of GCC. > so that no dependency anymore exists to the old C header files? > > What other alternatives are there? > What minimal/essential C headers would one need to provide > instead of the full /usr/include dir? > > -- > Thx