remove anonymous unions - not supported by older versions of gcc.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@2188 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/coregrind/ume.h b/coregrind/ume.h
index 26499ea..a1647dd 100644
--- a/coregrind/ume.h
+++ b/coregrind/ume.h
@@ -91,7 +91,7 @@
       void *a_ptr;
       int   a_val;
       void (*a_fcn)(void);
-   };
+   } u;
 };
 
 struct ume_auxv *find_auxv(int *orig_esp);