On Fri, Jul 10, 2026 at 10:26 PM Umn Was <[email protected]> wrote: > I can't find the mach.h header in gnumach-dev, i searched in > "/usr/include/x86_64-linux-gnu/mach > " and couldn't find it even there, does that a bug, or I missed something?
It's normally in /usr/include/mach.h. Clearly, it's not going to be in a x86_64-linux-gnu subdirectory, if anything, you want x86_64-gnu (without the Linux part). On Debian, it's in the libc0.3-dev package. The source file lives in the glibc source tree and not that of gnumach, as Mikhail points out. Sergey
