* dcrt0.cc: Include string.h.

(initial_env): Use small_printf's %P specifier.
	* dll_init.cc (dll_list::alloc): Use PATH_MAX instead of CYG_MAX_PATH
	for path name buffer size.
	* dll_init.h (struct dll): Ditto.
	* environ.cc: Include string.h.
	(win_env::add_cache): Use temporary local buffer for path conversion.
	(posify): Ditto.
	* exceptions.cc (try_to_debug): Use CreateProcessW to allow long path
	names.
	* miscfuncs.cc: Drop unused implementations of strcasematch and
	strncasematch.
	(ch_case_eq): Drop.
	(strcasestr): Drop.
	(cygwin_wcscasecmp): New function.
	(cygwin_wcsncasecmp): New function.
	(cygwin_strcasecmp): New function.
	(cygwin_strncasecmp): New function.
	(cygwin_wcslwr): New function.
	(cygwin_wcsupr): New function.
	(cygwin_strlwr): New function.
	(cygwin_strupr): New function.
	* ntdll.h (RtlDowncaseUnicodeString): Declare.
	(RtlUpcaseUnicodeString): Declare.
	(RtlInt64ToHexUnicodeString): Fix typo in comment.
	* string.h: Disable not NLS aware implementations of strcasematch
	and strncasematch.
	(cygwin_strcasecmp): Declare.
	(strcasecmp): Define as cygwin_strcasecmp.
	(cygwin_strncasecmp): Declare.
	(strncasecmp): Define as cygwin_strncasecmp.
	(strcasematch):Define using cygwin_strcasecmp.
	(strncasematch):Define using cygwin_strncasecmp.
	(cygwin_strlwr): Declare.
	(strlwr): Define as cygwin_strlwr.
	(cygwin_strupr): Declare.
	(strupr): Define as cygwin_strupr.
	* wchar.h: New file.
	* wincap.cc (wincapc::init): Use "NT" as fix OS string.
	* winsup.h (strcasematch): Drop declaration.
	(strncasematch): Ditto.
	(strcasestr): Ditto.

winsup/cygwin/wincap.cc

@@ -308,7 +308,6 @@ wincapc wincap __attribute__((section (".cygwin_dll_common"), shared));
 void
 wincapc::init ()
 {
-  const char *os;
   bool has_osversioninfoex = true;
 
   if (caps)
@@ -331,7 +330,6 @@ wincapc::init ()
 	switch (version.dwMajorVersion)
 	  {
 	    case 4:
-	      os = "NT";
 	      if (!has_osversioninfoex
 		  && strcmp (version.szCSDVersion, "Service Pack 4") < 0)
 		caps = &wincap_nt4;
@@ -339,7 +337,6 @@ wincapc::init ()
 		caps = &wincap_nt4sp4;
 	      break;
 	    case 5:
-	      os = "NT";
 	      switch (version.dwMinorVersion)
 		{
 		  case 0:
@@ -367,11 +364,9 @@ wincapc::init ()
 		}
 	      break;
 	    case 6:
-	      os = "NT";
 	      caps = &wincap_vista;
 	      break;
 	    default:
-	      os = "??";
 	      caps = &wincap_unknown;
 	      break;
 	  }
@@ -382,7 +377,6 @@ wincapc::init ()
 	api_fatal ("Windows 95/98/Me are not supported.");
 	break;
       default:
-	os = "??";
 	caps = &wincap_unknown;
 	break;
     }
@@ -396,7 +390,7 @@ wincapc::init ()
   else
     ((wincaps *)this->caps)->needs_count_in_si_lpres2 = false;
 
-  __small_sprintf (osnam, "%s-%d.%d", os, version.dwMajorVersion,
+  __small_sprintf (osnam, "NT-%d.%d", version.dwMajorVersion,
 		   version.dwMinorVersion);
 }