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On Saturday 05 April 2003 01:01 pm, James P. Roberts wrote:
> > > Can anyone explain the correct procedure at this point?
> >
> > The kernel-headers package contains the headers used to build glibc.
> > The .h files live in /usr/include/{asm,linux}.
>
> And therefore when I compile with gcc, which uses glibc, it wants to
> include the same headers as were used to compile the glibc libs? Is
> that the idea? And that's why I don't want to have
> /usr/include/{asm,linux} point to the same headers used to compile the
> kernel, because it might conflict with the glibc headers? I think I
> see.
Correct.
> > The kernel-headers package is not upgraded when the kernel is
> > upgraded.
>
> Why not? It used to be... Hence my confusion, of course.
Yes, I do remember that the kernel-headers were often upgraded in the
past. I really don't know why, to be honest.
> > The headers used for the current kernel are in
> > /usr/src/linux-{kernel-version}/include/
> > (A symlink should exist, /lib/modules/`uname -r`/build, which points
> > to the installed kernel-source.)
>
> Yes. So, the only thing that gets compiled with the kernel-source
> headers, is the kernel itself? Anything else should be compiled
> against the glibc headers, right? And just because something is
> compiled and linked using headers different from the kernel, that's OK.
> It must be, or else compiled code would not be portable, and
> everything would break upon kernel upgrade... Have I reached
> understanding, yet?
Yes, the kernel and kernel modules rely on the headers for the running
kernel. User space apps rely on the glibc headers.
> I am grateful to know that. Thank you for your help!
You're welcome.
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