$NetBSD: patch-ac,v 1.3 2012/06/08 15:42:28 joerg Exp $

--- libstdc++-v3/config/os/bsd/netbsd/ctype_base.h.orig	2002-06-24 07:50:58.000000000 +0200
+++ libstdc++-v3/config/os/bsd/netbsd/ctype_base.h
@@ -44,6 +44,7 @@
     // NB: Offsets into ctype<char>::_M_table force a particular size
     // on the mask type. Because of this, we don't use an enum.
     typedef unsigned char      	mask;
+#if !defined(_CTYPE_U)
     static const mask upper    	= _U;
     static const mask lower 	= _L;
     static const mask alpha 	= _U | _L;
@@ -55,4 +56,17 @@
     static const mask cntrl 	= _C;
     static const mask punct 	= _P;
     static const mask alnum 	= _U | _L | _N;
+#else
+    static const mask upper    	= _CTYPE_U;
+    static const mask lower 	= _CTYPE_L;
+    static const mask alpha 	= _CTYPE_U | _CTYPE_L;
+    static const mask digit 	= _CTYPE_N;
+    static const mask xdigit 	= _CTYPE_N | _CTYPE_X;
+    static const mask space 	= _CTYPE_S;
+    static const mask print 	= _CTYPE_P | _CTYPE_U | _CTYPE_L | _CTYPE_N | _CTYPE_B;
+    static const mask graph 	= _CTYPE_P | _CTYPE_U | _CTYPE_L | _CTYPE_N;
+    static const mask cntrl 	= _CTYPE_C;
+    static const mask punct 	= _CTYPE_P;
+    static const mask alnum 	= _CTYPE_U | _CTYPE_L | _CTYPE_N;
+#endif
   };