On Sun, 2006-09-10 at 13:24 +0100, Alan Cox wrote:
> glibc needs them, nobody else does.
>
> The point I was trying to make is that user space (except glibc) does
> not use them. glibc presents a different struct termios to them already,
> and it always includes c_ispeed/c_ospeed.
That's not the point. The question is what glibc's _implementation_ uses
for doing the ioctls. It has to have _some_ definition of the kernel's
version of the structure.
In fact it seems to have its own 'kernel_termios.h' which is an old copy
of our headers. So in that case, we really can drop <asm/termios.h> from
the export -- as least as far as glibc is concerned. I'm not sure about
other C libraries.
On the other hand, the kind of change you're making is an example of why
we might want glibc to be using a _sanely_ exported copy of our headers
directly, rather than an out-of-date version of its own. But that's a
policy decision I'll leave to you.
If you want to declare that asm/termios.h isn't to be exported even for
glibc builds then please drop all __KERNEL__ from it and remove it from
include/asm-generic/Kbuild.asm so that it isn't exported.
--
dwmw2
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