[PATCH] avoid malloc(0) for AIX

On AIX, malloc(0) segfaults, hence avoid calling malloc(0).

--- sed-4.2.1/lib/regex_internal.c
+++ sed-4.2.1/lib/regex_internal.c
@@ -883,6 +883,9 @@
      re_node_set *set;
      int size;
 {
+  if ( size == 0 )
+    return REG_NOERROR;
+
   set->alloc = size;
   set->nelem = 0;
   set->elems = re_malloc (int, size);

-- 
Fabian Groffen
Gentoo on a different level

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