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xen: build fix with gcc 4.5

PATCH In review Christoph Egger 2 participants 3 messages Jan 5, 2012

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Christoph Egger

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#0 lore raw

PATCH 1/1 xen: build fix with gcc 4.5

Fix build failure with gcc 4.5:
implicit declaration of __builtin_stdarg_start

Signed-off-by Christoph Egger <[email protected]>

From: David Brownlee <[email protected]>

Please also apply this to xen-4.1-testing.

Signature · 6 lines
---to satisfy European Law for business letters:
Advanced Micro Devices GmbH
Einsteinring 24, 85689 Dornach b. Muenchen
Geschaeftsfuehrer: Alberto Bozzo, Andrew Bowd
Sitz: Dornach, Gemeinde Aschheim, Landkreis Muenchen
Registergericht Muenchen, HRB Nr. 43632
xen/include/xen/stdarg.h +11 -1
diff -r 9a84303b600c xen/include/xen/stdarg.h
@@ -5,7 +5,17 @@
 #  include "/usr/include/stdarg.h"
 #elif defined (__NetBSD__)
    typedef __builtin_va_list va_list;
-#  define va_start(ap, last)    __builtin_stdarg_start((ap), (last))
+#  ifdef __GNUC__
+#    define __GNUC_PREREQ__(x, y)                                       \
+        ((__GNUC__ == (x) && __GNUC_MINOR__ >= (y)) ||                  \
+         (__GNUC__ > (x)))
+#  else
+#    define __GNUC_PREREQ__(x, y)   0
+#  endif
+#  if !__GNUC_PREREQ__(4, 5)
+#    define __builtin_va_start(ap, last)    __builtin_stdarg_start((ap), (last))
+#  endif
+#  define va_start(ap, last)    __builtin_va_start((ap), (last))
 #  define va_end(ap)            __builtin_va_end(ap)
 #  define va_arg                __builtin_va_arg
 #else

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#1 lore raw
Quoted 6 lines · Christoph Egger

Fix build failure with gcc 4.5:
implicit declaration of __builtin_stdarg_start

Signed-off-by Christoph Egger <[email protected]>

From: David Brownlee <[email protected]>

Can you please put netbsd in the comment header for netbsd-specific changes?

-- Keir

Quoted 1 line

Please also apply this to xen-4.1-testing.

author
#2 lore raw

PATCH 1/1 xen: build fix with gcc 4.5

In reply to Christoph Egger

Fix build failure with gcc 4.5 on NetBSD:
implicit declaration of __builtin_stdarg_start

Signed-off-by Christoph Egger <[email protected]>

From: David Brownlee <[email protected]>

Please also apply this to xen-4.1-testing.

Signature · 6 lines
---to satisfy European Law for business letters:
Advanced Micro Devices GmbH
Einsteinring 24, 85689 Dornach b. Muenchen
Geschaeftsfuehrer: Alberto Bozzo, Andrew Bowd
Sitz: Dornach, Gemeinde Aschheim, Landkreis Muenchen
Registergericht Muenchen, HRB Nr. 43632
xen/include/xen/stdarg.h +11 -1
diff -r 9a84303b600c xen/include/xen/stdarg.h
@@ -5,7 +5,17 @@
 #  include "/usr/include/stdarg.h"
 #elif defined (__NetBSD__)
    typedef __builtin_va_list va_list;
-#  define va_start(ap, last)    __builtin_stdarg_start((ap), (last))
+#  ifdef __GNUC__
+#    define __GNUC_PREREQ__(x, y)                                       \
+        ((__GNUC__ == (x) && __GNUC_MINOR__ >= (y)) ||                  \
+         (__GNUC__ > (x)))
+#  else
+#    define __GNUC_PREREQ__(x, y)   0
+#  endif
+#  if !__GNUC_PREREQ__(4, 5)
+#    define __builtin_va_start(ap, last)    __builtin_stdarg_start((ap), (last))
+#  endif
+#  define va_start(ap, last)    __builtin_va_start((ap), (last))
 #  define va_end(ap)            __builtin_va_end(ap)
 #  define va_arg                __builtin_va_arg
 #else

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