--- Makefile.PL	2007-01-25 15:05:56.000000000 -0200
+++ mk.pl	2007-01-25 15:06:54.000000000 -0200
@@ -77,10 +77,11 @@
     if ($args =~ /\.\.\./ ||
 	$args =~ /\*\*/ ||
 	$args =~ /\b(PerlInterpreter|PADOFFSET|const)\b/ ||
-	$args =~ /(STRLEN|I32|U8|int|[INUG]V|HE|PerlIO)\s*\*/ ||
+	$args =~ /(STRLEN|I32|U8|int|[INUG]V|HE|PerlIO|MAGIC|STASH)\s*\*/ ||
 	$args =~ /(^|,)\s*(sv)?type\b/ ||
 	$ret =~ /\*\*/ ||
 	$name =~ /^X?PUSH/ ||
+	$name =~ /^SvREFCNT/ ||
 	$AVOID{$name} ||
 	0)
     {