re PR libstdc++/6501 (ctype_noninline.h:45: `__SB_masks' undeclared)

	PR libstdc++/6501
	* include/c_std/std_cctype.h: Include bits/c++config.h.
	* config/os/hpux/bits/os_defines.h (_SB_CTYPE_MACROS): Define.

From-SVN: r52970

libstdc++-v3/ChangeLog

+	PR libstdc++/6501
+	* include/c_std/std_cctype.h: Include bits/c++config.h.
+	* config/os/hpux/bits/os_defines.h (_SB_CTYPE_MACROS): Define.
+
 2002-04-30  Benjamin Kosnik  <bkoz@redhat.com>
 
 	* include/ext/stdio_filebuf.h: New file.

libstdc++-v3/config/os/hpux/bits/os_defines.h

@@ -39,6 +39,9 @@
 
 #define __glibcpp_wchar_t_is_signed false
 
+// Use macro form of ctype functions to ensure __SB_masks is defined.
+#define _SB_CTYPE_MACROS 1
+
 /* HP-UX, for reasons unknown choose to use a different name for
    the string to [unsigned] long long conversion routines.
 

libstdc++-v3/include/c_std/std_cctype.h

@@ -45,6 +45,7 @@
 
 #pragma GCC system_header
 
+#include <bits/c++config.h>
 #include <ctype.h>
 
 // Get rid of those macros defined in <ctype.h> in lieu of real functions.