[PATCH v1 1/1] include/hw/xen/xen_native.h: downgrade include-order assertion to warning

The -I$(XEN_ROOT)/tools/include added to QEMU's extra-cflags causes
__XEN_INTERFACE_VERSION__ to be defined before xen_native.h is included,
triggering an include-order assertion. Downgrade to a warning since the
version is consistent in cross-compile.
Ref: https://github.com/qemu/qemu/commit/e2abfe5ec6

Signed-off-by: Neal Frager <[email protected]>
Signed-off-by: Vincent Stehlé <[email protected]>
---
 include/hw/xen/xen_native.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/hw/xen/xen_native.h b/include/hw/xen/xen_native.h
index 5caf91a616..3e1137efc1 100644
--- a/include/hw/xen/xen_native.h
+++ b/include/hw/xen/xen_native.h
@@ -2,7 +2,7 @@
 #define QEMU_HW_XEN_NATIVE_H
 
 #ifdef __XEN_INTERFACE_VERSION__
-#error In Xen native files, include xen_native.h before other Xen headers
+#warning In Xen native files, include xen_native.h before other Xen headers
 #endif
 
 /*
-- 
2.43.0