* autoload.cc (CharToOemA): Remove.

(CharNextExA): Define.
	* environ.cc (codepage_init): Un-static.  Set active_codepage to
	active codepage.  Default to ansi regardless of buf pointer.
	* fhandler.h (dev_console::get_console_cp): New method.
	(dev_console::con_to_str): Change declaration according to new
	implementation.
	(dev_console::str_to_con): Ditto.
	* fhandler_console.cc (cp_convert): Remove.
	(dev_console::con_to_str): Redefine to take WCHAR as incoming console
	char.
	(dev_console::get_console_cp): Return correct codepage according to
	alternate_charset_active setting.
	(dev_console::str_to_con): Redefine to create WCHAR buffer for console
	output.
	(fhandler_console::read): Read console input as WCHARs.
	(base_chars): Fix typo in comment.
	(fhandler_console::char_command): Save and restore console output
	buffer using UNICODE functions.
	(fhandler_console::write_normal): Convert to write output in UNICODE.
	Use CharNextExA to recognize multibyte characters in input.  Workaround
	problem with UTF-8 and MultiByteToWideChar.  Simplify the loop for
	printing "normal" characters.
	* strfuncs.cc (active_codepage): New variable to store active codepage.
	(get_cp): Call codepage_init() if active_codepage is uninitialized.
	Just return active_codepage.
	(is_cp_multibyte): New function.
	* winsup.h (active_codepage): Declare.
	(codepage_init): Declare.
	(is_cp_multibyte): Declare.

winsup/cygwin/environ.cc

@@ -16,6 +16,7 @@ details. */
 #include <assert.h>
 #include <sys/cygwin.h>
 #include <cygwin/version.h>
+#include <winnls.h>
 #include "pinfo.h"
 #include "perprocess.h"
 #include "security.h"
@@ -513,20 +514,30 @@ set_file_api_mode (codepage_type cp)
     }
 }
 
-static void
+void
 codepage_init (const char *buf)
 {
-  if (!buf || !*buf)
-    return;
+  if (!buf)
+    buf = "ansi";
 
   if (ascii_strcasematch (buf, "oem"))
-    current_codepage = oem_cp;
-  else if (ascii_strcasematch (buf, "ansi"))
-    current_codepage = ansi_cp;
+    {
+      current_codepage = oem_cp;
+      active_codepage = GetOEMCP ();
+    }
   else if (ascii_strcasematch (buf, "utf8"))
-    current_codepage = utf8_cp;
+    {
+      current_codepage = utf8_cp;
+      active_codepage = CP_UTF8;
+    }
   else
-    debug_printf ("Wrong codepage name: %s", buf);
+    {
+      if (!ascii_strcasematch (buf, "ansi"))
+	debug_printf ("Wrong codepage name: %s", buf);
+      /* Fallback to ANSI */
+      current_codepage = ansi_cp;
+      active_codepage = GetACP ();
+    }
   set_file_api_mode (current_codepage);
 }