$NetBSD: patch-aa,v 1.1.1.1 2001/02/27 23:39:55 jtb Exp $

--- BibTeX.xs~	Wed Oct  6 14:56:46 1999
+++ BibTeX.xs	Fri Sep 15 23:49:59 2000
@@ -29,6 +29,8 @@
 #include "perl.h"
 #include "XSUB.h"
 
+#define na PL_na
+
 #define BT_DEBUG 0
 
 #include "btparse.h"
@@ -49,7 +51,7 @@
 	if (constant(name, &i))
 	    ST(0) = sv_2mortal(newSViv(i));
 	else
-	    ST(0) = &sv_undef;
+	    ST(0) = &PL_sv_undef;
 
 
 MODULE = Text::BibTeX           PACKAGE = Text::BibTeX          PREFIX = bt_
@@ -96,7 +98,7 @@
        for (i = 0; i < names->num_items; i++)
        {
           if (names->items[i] == NULL)
-             sv_name = &sv_undef;
+             sv_name = &PL_sv_undef;
           else
              sv_name = sv_2mortal (newSVpv (names->items[i], 0));