[Xen-devel] [PATCH] Fix domctl GCC dependency

[john.levon@xxxxxxx]

# HG changeset patch
# User john.levon@xxxxxxx
# Date 1197317681 28800
# Node ID c65a528cfe746e70a1e2b002c0d355c48c05615d
# Parent  02adbed1652bc05cc9196d1ff6f91e1f3cbda0b8
Fix domctl GCC dependency

Compilers other than GCC don't allow zero-sized structs.

Signed-off-by: John Levon <john.levon@xxxxxxx>

diff --git a/xen/include/public/domctl.h b/xen/include/public/domctl.h
--- a/xen/include/public/domctl.h
+++ b/xen/include/public/domctl.h
@@ -562,8 +562,10 @@ DEFINE_XEN_GUEST_HANDLE(xen_domctl_ext_v
  */
 #define XEN_DOMCTL_set_opt_feature    44
 struct xen_domctl_set_opt_feature {
-#ifdef __ia64__
+#if defined(__ia64__)
     struct xen_ia64_opt_feature optf;
+#elif !defined(__GNUC__)
+    uint64_t dummy;
 #endif
 };
 typedef struct xen_domctl_set_opt_feature xen_domctl_set_opt_feature_t;

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