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$NetBSD: patch-ae,v 1.3.22.1 2014/05/21 04:05:15 schnoebe Exp $
- protect Xen's stdarg.h from multiple inclusion.
- build fix for stdarg under NetBSD.
Both backported from upstream.
http://xenbits.xensource.com/hg/xen-unstable.hg/file/a574bf2f5059/xen/include/xen/stdarg.h
--- xen/include/xen/stdarg.h.orig 2008-04-25 15:03:12.000000000 +0200
+++ xen/include/xen/stdarg.h 2014-05-14 16:11:10.000000000 +0200
@@ -1,5 +1,26 @@
+#ifndef __XEN_STDARG_H__
+#define __XEN_STDARG_H__
+
#if defined(__OpenBSD__)
# include "/usr/include/stdarg.h"
+#elif defined (__NetBSD__)
+#ifdef __GNUC__
+#define __GNUC_PREREQ__(x, y) \
+ ((__GNUC__ == (x) && __GNUC_MINOR__ >= (y)) || \
+ (__GNUC__ > (x)))
+#else
+#define __GNUC_PREREQ__(x, y) 0
+#endif
+ typedef __builtin_va_list va_list;
+#if __GNUC_PREREQ__(4, 5)
+# define va_start(ap, last) __builtin_va_start((ap), (last))
+#else
+# define va_start(ap, last) __builtin_stdarg_start((ap), (last))
+#endif /* __GNUC_PREREQ__ */
+# define va_end(ap) __builtin_va_end(ap)
+# define va_arg __builtin_va_arg
#else
# include <stdarg.h>
#endif
+
+#endif /* __XEN_STDARG_H__ */
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