[RFA] Fix osdata.c compile error without libexpat

[teawater <teawater@gmail.com>]

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Hi,

I got GDB-cvs build error if there is not libexpat.
I found that osdata.c file doesn't define function "osdata_parse" if
!defined(HAVE_LIBEXPAT). But in below, it is need.
So I make a patch for it.

2008-12-02  Hui Zhu  <teawater@gmail.com>

	* osdata.c (osdata_item_clear): New empty funtion just for
	compile without libexpat.

Thanks,
Hui

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---
 osdata.c |    5 +++++
 1 file changed, 5 insertions(+)

--- gdb.orig/osdata.c
+++ gdb/osdata.c
@@ -43,6 +43,11 @@
   return NULL;
 }
 
+static void
+osdata_item_clear (struct osdata_item *item)
+{
+}
+
 #else /* HAVE_LIBEXPAT */
 
 #include "xml-support.h"