From mboxrd@z Thu Jan  1 00:00:00 1970
From: Olaf Hering <olaf@aepfle.de>
Subject: usage of libxc compat function fails with staging
Date: Thu, 25 Oct 2018 14:08:08 +0200
Message-ID: <20181025140808.13eefc21.olaf@aepfle.de>
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I have a matrix of various qemu.git#stable-x.y that build against xen.git#s=
taging*. Since some months qemu.git#stable-2.x fails to build against xen.g=
it#staging. qemu-2.10+ works with staging. To me it is not clear how to fix=
 this failure:

qemu-2.9-20170907T112512.4cd42653f5/include/hw/xen/xen_common.h:61:16: warn=
ing: implicit declaration of function 'xc_map_foreign_bulk'

qemu is built with the various compat flags like :-DXC_WANT_COMPAT_MAP_FORE=
IGN_API=3D1. I think this should give access to that function. But for some=
 reason the missing function is wrapped further in xenctrl_compat.h.

Is qemu-2.x supposed to define XC_BUILDING_COMPAT_MAP_FOREIGN_API? Commit 3=
248691679 ("tools: Refactor foreign memory mapping into libxenforeignmemory=
") in xen.git indicates that just XC_WANT_COMPAT_MAP_FOREIGN_API would be n=
eeded.

Olaf

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