[XenPPC] [xenppc-unstable] [POWERPC][TOOLS] fix header so libaio builds

[Xen patchbot-xenppc-unstable <patchbot-xenppc-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User Jimi Xenidis <jimix@xxxxxxxxxxxxxx>
# Node ID e60de2425ec47caf50301b6aa164c61ff1540eb7
# Parent  0bb2e9a96c33777247319e6ff3428212bf5c1f17
[POWERPC][TOOLS] fix header so libaio builds

Signed-off-by: Jimi Xenidis <jimix@xxxxxxxxxxxxxx>
---
 tools/libaio/src/syscall-ppc.h |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletion(-)

diff -r 0bb2e9a96c33 -r e60de2425ec4 tools/libaio/src/syscall-ppc.h
--- a/tools/libaio/src/syscall-ppc.h    Wed Aug 09 15:37:42 2006 -0400
+++ b/tools/libaio/src/syscall-ppc.h    Wed Aug 09 15:38:37 2006 -0400
@@ -1,3 +1,6 @@
+#include <asm/unistd.h>
+#include <errno.h>
+
 #define __NR_io_setup          227
 #define __NR_io_destroy                228
 #define __NR_io_getevents      229
@@ -9,7 +12,7 @@
  * "sc; bnslr" sequence) and CR (where only CR0.SO is clobbered to signal
  * an error return status).
  */
-
+#ifndef __syscall_nr
 #define __syscall_nr(nr, type, name, args...)                          \
        unsigned long __sc_ret, __sc_err;                               \
        {                                                               \
@@ -37,6 +40,7 @@
        }                                                               \
        if (__sc_err & 0x10000000) return -((int)__sc_ret);             \
        return (type) __sc_ret
+#endif
 
 #define __sc_loadargs_0(name, dummy...)                                        
\
        __sc_0 = __NR_##name

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