3 files changed, 8 insertions, 4 deletions
diff --git a/ChangeLog b/ChangeLog
index a053ca66..2162c9c0 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -3,6 +3,11 @@
 	* main.c: Remove a debugging // comment.
 	* NOTES: Removed.
 
+	Unrelated:
+
+	Revert changes of 2014-11-20 from Paul Eggert. Causes failures
+	on z/OS.
+
 2014-11-20  Paul Eggert  <eggert@cs.ucla.edu>
 
 	Port to systems where malloc (0) and/or realloc(P, 0) returns NULL.
diff --git a/gawkmisc.c b/gawkmisc.c
index fff5cc56..a729d88d 100644
--- a/gawkmisc.c
+++ b/gawkmisc.c
@@ -51,8 +51,7 @@ extern pointer xmalloc(size_t bytes);	/* get rid of gcc warning */
 pointer
 xmalloc(size_t bytes)
 {
-	pointer p = malloc(bytes);
-	if (!p && bytes)
-		xalloc_die ();	  
+	pointer p;
+	emalloc(p, pointer, bytes, "xmalloc");
 	return p;
 }
diff --git a/xalloc.h b/xalloc.h
index 5ee45164..0d169cf9 100644
--- a/xalloc.h
+++ b/xalloc.h
@@ -156,7 +156,7 @@ void *
 xrealloc(void *p, size_t size)
 {
    void *new_p = realloc(p, size);
-   if (!new_p && size)
+   if (new_p ==  0)
      xalloc_die ();
 
    return new_p;