Provide sys/xattr.h

Corinna Vinschen
Tue Mar 29 07:53:00 GMT 2011

On Mar 29 02:43, Yaakov (Cygwin/X) wrote:
> Historically, the *xattr functions were first provided by SGI libattr
> and prototyped in <attr/xattr.h>.  Later, glibc added them under
> <sys/xattr.h>[1], and (on Linux) libattr still provides the symbols for
> ABI compatibility but they are now just wrappers.
> (FWIW, Darwin also provides these symbols in <sys/xattr.h>[2].)
> This can be seen very clearly in GLib's configure[3], where
> <sys/xattr.h> and libc are tested in tandem, followed by <attr/xattr.h>
> and libattr.  Hence, with only attr/xattr.h present, libattr-devel is
> required not only for building GLib, but the -lattr becomes hardcoded in
> the libtool .la files, meaning that libglib2.0-devel would require
> libattr-devel even though GLib requires no symbols from libattr1.
> I see two ways to resolve this:
> 1) Move include/attr/xattr.h to include/sys/xattr.h, and ship libattr's
> attr/xattr.h in libattr-devel, exactly as is done on Linux:
> 2011-03-29  Yaakov Selkowitz <yselkowitz@...>
> 	* include/attr/xattr.h: Move from here...
> 	* include/sys/xattr.h: here.
> 2) Install a copy of include/attr/xattr.h as <sys/xattr.h>, as in the
> attached patch.

What about just creating a file sys/attr.h which includes attr/attr.h?


Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Project Co-Leader          cygwin AT cygwin DOT com
Red Hat

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