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Re: xattr.h wonkiness



Quoting Carlos O'Donell (carlos@systemhalted.org):
> On Fri, Feb 21, 2014 at 6:42 PM, Serge Hallyn <serge.hallyn@ubuntu.com> wrote:
> > Hi, would a simple patchl ike this to misc/sys/xattr.h be
> > acceptable?  This showed up in a failure to build (of at least
> > qemu, and aiui lots of other pkgs) after merging a new libcap2
> > where sys/capability.h #included linux/xattr.h.  It's being
> > worked around by patching libcap2 to #include sys/xattr.h
> > first, but presumably this will cause other breakages.
> 
> Please follow the accepted practice for fixing coordination between
> userspace and Linux kernel headers.
> 
> Upstream glibc and the Linux kernel have already worked out a
> mechanical solution to this problem, and we need people to work out
> the patches and post them upstream.
> 
> The solution is to coordinate the conflicting headers following this template:
> https://sourceware.org/glibc/wiki/Synchronizing_Headers

Thanks for the information.  I tested the two patches at
http://people.canonical.com/~serge/xattr-kernel-libc-fix/ and they
seem to do the right thing.  I'll send them out if they look ok.

thanks,
-serge


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