[HEIMDAL-646] aix

AIX qsort() is unstable and might change the order of the elements
if they are equal, libwind require them to be in the same order as they were
on the input, pull in FreeBSD qsort and use that instead of AIX version.

lib/wind/normalize.c

@@ -41,6 +41,8 @@
 #include <errno.h>
 #include <stdio.h>
 
+#include "roken.h"
+
 #include "normalize_table.h"
 
 static int