[patch] Eliminate generated source dependency on internals of AWK used

[Paul Pluzhnikov]

Greetings,

Here at Google we like to be able to build bit-identical binaries given
the same sources.

It turns out that the errlist script output depends on internals of AWK
(order of elements in associative array).

Attached patch fixes that.

Thanks,
--
Paul Pluzhnikov


2012-03-01  Chris Demetriou  <cgd@google.com>

	* sysdeps/gnu/errlist-compat.awk: Don't depend on AWK internals.


diff --git a/sysdeps/gnu/errlist-compat.awk b/sysdeps/gnu/errlist-compat.awk
index 0e97d05..4f70e92 100644
--- a/sysdeps/gnu/errlist-compat.awk
+++ b/sysdeps/gnu/errlist-compat.awk
@@ -84,7 +84,10 @@ END {
     printf "#define ERR_MAX %d\n\n", highest;
   }
 
-  for (old in compat) {
+  # same regardless of awk's ordering of the associative array.
+  num_compat_elems = asorti(compat, compat_indices)
+  for (i = 1; i <= num_compat_elems; i++) {
+    old = compat_indices[i]
     new = compat[old];
     n = vcount[old];
     printf "#if SHLIB_COMPAT (libc, %s, %s)\n", old, new;