[Xen-devel] errno in xenbus_xs.c?

["Magenheimer, Dan (HP Labs Fort Collins)" <dan.magenheimer@xxxxxx>]

A recent change to xenbus_xs.c makes use of errno.  Where
is errno getting declared?  (The obvious answer --
linux/errno.h -- is not true.)

Errno is not found when compiling xenbus_xs.c for
xenlinux/ia64 so I suspect some asm-specific trickery
is going on?

Thanks,
Dan

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