* Makfile.in: Remove traces of mbchar.

	* c-parse.in (MULTIBYTE_CHARS): Remove.
	* config.in (MULTIBYTE_CHARS): Remove.
	* configure: Remove --enable-mbchar.
	* configure.in: Remove --enable-mbchar.
	* mbchar.c, mbchar.h: Remove.
	* system.h: Poison MULTIBYTE_CHARS.
	* config/linux-aout.h (MULTIBYTE_CHARS): Remove.
	* config/linux.h (MULTIBYTE_CHARS): Remove.
	* config/svr4.h (MULTIBYTE_CHARS): Remove.
	* config/sparc/linux.h (MULTIBYTE_CHARS): Remove.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@69009 138bc75d-0d04-0410-961f-82ee72b054a4

13 files changed, 16 insertions, 435 deletions

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index a41455e1d89..e0c44ebaa51 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,17 @@
+2003-07-06  Neil Booth  <neil@daikokuya.co.uk>
+
+	* Makfile.in: Remove traces of mbchar.
+	* c-parse.in (MULTIBYTE_CHARS): Remove.
+	* config.in (MULTIBYTE_CHARS): Remove.
+	* configure: Remove --enable-mbchar.
+	* configure.in: Remove --enable-mbchar.
+	* mbchar.c, mbchar.h: Remove.
+	* system.h: Poison MULTIBYTE_CHARS.
+	* config/linux-aout.h (MULTIBYTE_CHARS): Remove.
+	* config/linux.h (MULTIBYTE_CHARS): Remove.
+	* config/svr4.h (MULTIBYTE_CHARS): Remove.
+	* config/sparc/linux.h (MULTIBYTE_CHARS): Remove.
+
 2003-07-06  Andreas Jaeger  <aj@suse.de>
 
 	* varray.c (varray_check_failed): Fix typo.
diff --git a/gcc/Makefile.in b/gcc/Makefile.in
index 7b475735f66..5ebb42bd1a0 100644
--- a/gcc/Makefile.in
+++ b/gcc/Makefile.in
@@ -813,7 +813,7 @@ OBJS = alias.o bb-reorder.o bitmap.o builtins.o caller-save.o calls.o	   \
  haifa-sched.o hashtable.o hooks.o ifcvt.o insn-attrtab.o insn-emit.o	   \
  insn-extract.o insn-opinit.o insn-output.o insn-peep.o insn-recog.o	   \
  integrate.o intl.o jump.o  langhooks.o lcm.o lists.o local-alloc.o  	   \
- loop.o mbchar.o optabs.o options.o opts.o params.o postreload.o predict.o \
+ loop.o optabs.o options.o opts.o params.o postreload.o predict.o	   \
  print-rtl.o print-tree.o value-prof.o					   \
  profile.o ra.o ra-build.o ra-colorize.o ra-debug.o ra-rewrite.o	   \
  real.o recog.o reg-stack.o regclass.o regmove.o regrename.o		   \
@@ -1283,7 +1283,6 @@ c-convert.o : c-convert.c $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H) $(TREE_H)
     flags.h toplev.h $(C_COMMON_H) real.h
 c-pragma.o: c-pragma.c $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H) $(RTL_H) $(TREE_H) \
     function.h c-pragma.h toplev.h output.h $(GGC_H) $(TM_P_H) $(C_COMMON_H) gt-c-pragma.h
-mbchar.o: mbchar.c $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H) mbchar.h
 graph.o: graph.c $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H) toplev.h flags.h output.h \
     $(RTL_H) function.h hard-reg-set.h $(BASIC_BLOCK_H) graph.h
 sbitmap.o: sbitmap.c $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H) $(RTL_H) flags.h \
diff --git a/gcc/c-parse.in b/gcc/c-parse.in
index b62f2ff7294..6eaa354c02b 100644
--- a/gcc/c-parse.in
+++ b/gcc/c-parse.in
@@ -50,10 +50,6 @@ end ifc
 #include "toplev.h"
 #include "ggc.h"
 
-#ifdef MULTIBYTE_CHARS
-#include <locale.h>
-#endif
-
 ifobjc
 #include "objc-act.h"
 end ifobjc
diff --git a/gcc/config.in b/gcc/config.in
index d17fd693ceb..27b807b1176 100644
--- a/gcc/config.in
+++ b/gcc/config.in
@@ -335,10 +335,6 @@
 /* Define if valgrind's memcheck.h header is installed. */
 #undef HAVE_MEMCHECK_H
 
-/* Define if you want the C and C++ compilers to support multibyte
-   character sets for source code. */
-#undef MULTIBYTE_CHARS
-
 /* Always define this when using the GNU C Library */
 #undef _GNU_SOURCE
 
diff --git a/gcc/config/linux-aout.h b/gcc/config/linux-aout.h
index f63efd47790..5701fd94ded 100644
--- a/gcc/config/linux-aout.h
+++ b/gcc/config/linux-aout.h
@@ -22,14 +22,6 @@ Boston, MA 02111-1307, USA.  */
 /* Don't assume anything about the header files.  */
 #define NO_IMPLICIT_EXTERN_C
 
-/* GNU/Linux uses ctype from glibc.a. I am not sure how complete it is.
-   For now, we play safe. It may change later.  */
-
-#if 0
-#undef MULTIBYTE_CHARS
-#define MULTIBYTE_CHARS	1
-#endif
-
 #undef STARTFILE_SPEC
 #define STARTFILE_SPEC  "%{pg:gcrt0.o%s} %{!pg:%{p:gcrt0.o%s} %{!p:crt0.o%s}} %{static:-static}"
 
diff --git a/gcc/config/linux.h b/gcc/config/linux.h
index 15c83b0d8c9..75b403057e2 100644
--- a/gcc/config/linux.h
+++ b/gcc/config/linux.h
@@ -23,14 +23,6 @@ Boston, MA 02111-1307, USA.  */
 /* Don't assume anything about the header files.  */
 #define NO_IMPLICIT_EXTERN_C
 
-/* GNU/Linux uses ctype from glibc.a. I am not sure how complete it is.
-   For now, we play safe. It may change later.  */
-
-#if 0
-#undef MULTIBYTE_CHARS
-#define MULTIBYTE_CHARS 1
-#endif
-
 #undef ASM_APP_ON
 #define ASM_APP_ON "#APP\n"
 
diff --git a/gcc/config/sparc/linux.h b/gcc/config/sparc/linux.h
index d2f016d1794..a7a48e60c2d 100644
--- a/gcc/config/sparc/linux.h
+++ b/gcc/config/sparc/linux.h
@@ -35,14 +35,6 @@ Boston, MA 02111-1307, USA.  */
 /* Don't assume anything about the header files.  */
 #define NO_IMPLICIT_EXTERN_C
 
-/* GNU/Linux uses ctype from glibc.a. I am not sure how complete it is.
-   For now, we play safe. It may change later.  */
-
-#if 0
-#undef MULTIBYTE_CHARS
-#define MULTIBYTE_CHARS 1
-#endif
-
 #undef MD_EXEC_PREFIX
 #undef MD_STARTFILE_PREFIX
 
diff --git a/gcc/config/svr4.h b/gcc/config/svr4.h
index d865959f3c9..714326a5f43 100644
--- a/gcc/config/svr4.h
+++ b/gcc/config/svr4.h
@@ -202,8 +202,4 @@ Boston, MA 02111-1307, USA.
 #undef  WCHAR_TYPE_SIZE
 #define WCHAR_TYPE_SIZE BITS_PER_WORD
 
-/* This causes trouble, because it requires the host machine
-   to support ANSI C.  */
-/* #define MULTIBYTE_CHARS */
-
 #define TARGET_HAS_F_SETLKW
diff --git a/gcc/configure b/gcc/configure
index 74995a9006f..b685553bdcc 100755
--- a/gcc/configure
+++ b/gcc/configure
@@ -52,8 +52,6 @@ ac_help="$ac_help
 ac_help="$ac_help
   --enable-__cxa_atexit   enable __cxa_atexit for C++"
 ac_help="$ac_help
-  --enable-c-mbchar       enable multibyte characters for C and C++"
-ac_help="$ac_help
   --enable-threads        enable thread usage for target GCC
   --enable-threads=LIB    use LIB thread package for target GCC"
 ac_help="$ac_help
@@ -2147,19 +2145,6 @@ if test "${enable___cxa_atexit+set}" = set; then
 fi
 
 
-# Enable Multibyte Characters for C/C++
-# Check whether --enable-c-mbchar or --disable-c-mbchar was given.
-if test "${enable_c_mbchar+set}" = set; then
-  enableval="$enable_c_mbchar"
-  if test x$enable_c_mbchar != xno; then
-  cat >> confdefs.h <<\EOF
-#define MULTIBYTE_CHARS 1
-EOF
-
-fi
-fi
-
-  
 # Enable threads
 # Pass with no value to take the default
 # Pass with a value to specify a thread package
diff --git a/gcc/configure.in b/gcc/configure.in
index ddb4615bc4d..869ce8d3567 100644
--- a/gcc/configure.in
+++ b/gcc/configure.in
@@ -469,15 +469,6 @@ AC_ARG_ENABLE(__cxa_atexit,
 [  --enable-__cxa_atexit   enable __cxa_atexit for C++],
 [], [])
 
-# Enable Multibyte Characters for C/C++
-AC_ARG_ENABLE(c-mbchar,
-[  --enable-c-mbchar       enable multibyte characters for C and C++],
-if test x$enable_c_mbchar != xno; then
-  AC_DEFINE(MULTIBYTE_CHARS, 1,
-  [Define if you want the C and C++ compilers to support multibyte
-   character sets for source code.])
-fi)
-  
 # Enable threads
 # Pass with no value to take the default
 # Pass with a value to specify a thread package
diff --git a/gcc/mbchar.c b/gcc/mbchar.c
deleted file mode 100644
index 81b87540a2c..00000000000
--- a/gcc/mbchar.c
+++ /dev/null
@@ -1,331 +0,0 @@
-/* Multibyte Character Functions.
-   Copyright (C) 1998, 2003 Free Software Foundation, Inc.
-
-This file is part of GCC.
-
-GCC is free software; you can redistribute it and/or modify it under
-the terms of the GNU General Public License as published by the Free
-Software Foundation; either version 2, or (at your option) any later
-version.
-
-GCC is distributed in the hope that it will be useful, but WITHOUT ANY
-WARRANTY; without even the implied warranty of MERCHANTABILITY or
-FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-for more details.
-
-You should have received a copy of the GNU General Public License
-along with GCC; see the file COPYING.  If not, write to the Free
-Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-02111-1307, USA.  */
-
-/* Note regarding cross compilation:
-
-   In general, translation of multibyte characters to wide characters can
-   only work in a native compiler since the translation function (mbtowc)
-   needs to know about both the source and target character encoding.  However,
-   this particular implementation for JIS, SJIS and EUCJP source characters
-   will work for any compiler with a newlib target.  Other targets may also
-   work provided that their wchar_t implementation is 2 bytes and the encoding
-   leaves the source character values unchanged (except for removing the
-   state shifting markers).  */
-
-#include "config.h"
-#ifdef MULTIBYTE_CHARS
-#include "system.h"
-#include "coretypes.h"
-#include "tm.h"
-#include "mbchar.h"
-#include <locale.h>
-
-typedef enum {ESCAPE, DOLLAR, BRACKET, AT, B, J, NUL, JIS_CHAR, OTHER,
-	      JIS_C_NUM} JIS_CHAR_TYPE;
-
-typedef enum {ASCII, A_ESC, A_ESC_DL, JIS, JIS_1, JIS_2, J_ESC, J_ESC_BR,
-	     J2_ESC, J2_ESC_BR, INV, JIS_S_NUM} JIS_STATE;
-
-typedef enum {COPYA, COPYJ, COPYJ2, MAKE_A, MAKE_J, NOOP,
-	      EMPTY, ERROR} JIS_ACTION;
-
-/* State/action tables for processing JIS encoding:
-
-   Where possible, switches to JIS are grouped with proceding JIS characters
-   and switches to ASCII are grouped with preceding JIS characters.
-   Thus, maximum returned length is:
-     2 (switch to JIS) + 2 (JIS characters) + 2 (switch back to ASCII) = 6.  */
-
-static const JIS_STATE JIS_state_table[JIS_S_NUM][JIS_C_NUM] = {
-/*            ESCAPE DOLLAR   BRACKET   AT     B      J     NUL JIS_CHAR OTH*/
-/*ASCII*/   { A_ESC, ASCII,   ASCII,    ASCII, ASCII, ASCII, ASCII,ASCII,ASCII},
-/*A_ESC*/   { ASCII, A_ESC_DL,ASCII,    ASCII, ASCII, ASCII, ASCII,ASCII,ASCII},
-/*A_ESC_DL*/{ ASCII, ASCII,   ASCII,    JIS,   JIS,   ASCII, ASCII,ASCII,ASCII},
-/*JIS*/     { J_ESC, JIS_1,   JIS_1,    JIS_1, JIS_1, JIS_1, INV,  JIS_1,INV },
-/*JIS_1*/   { INV,   JIS_2,   JIS_2,    JIS_2, JIS_2, JIS_2, INV,  JIS_2,INV },
-/*JIS_2*/   { J2_ESC,JIS,     JIS,      JIS,   JIS,   JIS,   INV,  JIS,  JIS },
-/*J_ESC*/   { INV,   INV,     J_ESC_BR, INV,   INV,   INV,   INV,  INV,  INV },
-/*J_ESC_BR*/{ INV,   INV,     INV,      INV,   ASCII, ASCII, INV,  INV,  INV },
-/*J2_ESC*/  { INV,   INV,     J2_ESC_BR,INV,   INV,   INV,   INV,  INV,  INV },
-/*J2_ESC_BR*/{INV,   INV,     INV,      INV,   ASCII, ASCII, INV,  INV,  INV },
-};
-
-static const JIS_ACTION JIS_action_table[JIS_S_NUM][JIS_C_NUM] = {
-/*            ESCAPE DOLLAR BRACKET AT     B       J      NUL  JIS_CHAR OTH */
-/*ASCII */   {NOOP,  COPYA, COPYA, COPYA,  COPYA,  COPYA, EMPTY, COPYA, COPYA},
-/*A_ESC */   {COPYA, NOOP,  COPYA, COPYA,  COPYA,  COPYA, COPYA, COPYA, COPYA},
-/*A_ESC_DL */{COPYA, COPYA, COPYA, MAKE_J, MAKE_J, COPYA, COPYA, COPYA, COPYA},
-/*JIS */     {NOOP,  NOOP,  NOOP,  NOOP,   NOOP,   NOOP,  ERROR, NOOP,  ERROR},
-/*JIS_1 */   {ERROR, NOOP,  NOOP,  NOOP,   NOOP,   NOOP,  ERROR, NOOP,  ERROR},
-/*JIS_2 */   {NOOP,  COPYJ2,COPYJ2,COPYJ2, COPYJ2, COPYJ2,ERROR, COPYJ2,COPYJ2},
-/*J_ESC */   {ERROR, ERROR, NOOP,  ERROR,  ERROR,  ERROR, ERROR, ERROR, ERROR},
-/*J_ESC_BR */{ERROR, ERROR, ERROR, ERROR,  NOOP,   NOOP,  ERROR, ERROR, ERROR},
-/*J2_ESC */  {ERROR, ERROR, NOOP,  ERROR,  ERROR,  ERROR, ERROR, ERROR, ERROR},
-/*J2_ESC_BR*/{ERROR, ERROR, ERROR, ERROR,  COPYJ,  COPYJ, ERROR, ERROR, ERROR},
-};
-
-
-const char *literal_codeset = NULL;
-
-/* Store into *PWC (if PWC is not null) the wide character
-   corresponding to the multibyte character at the start of the
-   buffer S of size N.  Return the number of bytes in the multibyte
-   character.  Return -1 if the bytes do not form a valid character,
-   or 0 if S is null or points to a null byte.
-
-   This function behaves like the Standard C function mbtowc, except
-   it treats locale names of the form "C-..." specially.  */
-
-int
-local_mbtowc (wchar_t *pwc, const char *s, size_t n)
-{
-  static JIS_STATE save_state = ASCII;
-  JIS_STATE curr_state = save_state;
-  const unsigned char *t = (const unsigned char *) s;
-
-  if (s != NULL && n == 0)
-    return -1;
-
-  if (literal_codeset == NULL || strlen (literal_codeset) <= 1)
-    /* This must be the "C" locale or unknown locale -- fall thru */
-    ;
-  else if (! strcmp (literal_codeset, "C-SJIS"))
-    {
-      int char1;
-      if (s == NULL)
-	/* Not state-dependent.  */
-        return 0;
-
-      char1 = *t;
-      if (ISSJIS1 (char1))
-        {
-          int char2 = t[1];
-
-          if (n <= 1)
-            return -1;
-
-          if (ISSJIS2 (char2))
-            {
-	      if (pwc != NULL)
-		*pwc = (((wchar_t) *t) << 8) + (wchar_t) (*(t + 1));
-              return 2;
-            }
-
-	  return -1;
-        }
-
-      if (pwc != NULL)
-	*pwc = (wchar_t) *t;
-
-      if (*t == '\0')
-	return 0;
-
-      return 1;
-    }
-  else if (! strcmp (literal_codeset, "C-EUCJP"))
-    {
-      int char1;
-
-      if (s == NULL)
-	/* Not state-dependent.  */
-        return 0;
-
-      char1 = *t;
-      if (ISEUCJP (char1))
-        {
-          int char2 = t[1];
-
-          if (n <= 1)
-            return -1;
-
-          if (ISEUCJP (char2))
-            {
-	      if (pwc != NULL)
-		*pwc = (((wchar_t) *t) << 8) + (wchar_t) (*(t + 1));
-              return 2;
-            }
-
-	  return -1;
-        }
-
-      if (pwc != NULL)
-	*pwc = (wchar_t) *t;
-
-      if (*t == '\0')
-	return 0;
-
-      return 1;
-    }
-  else if (! strcmp (literal_codeset, "C-JIS"))
-    {
-      JIS_ACTION action;
-      JIS_CHAR_TYPE ch;
-      const unsigned char *ptr;
-      size_t i, curr_ch;
-
-      if (s == NULL)
-	{
-	  save_state = ASCII;
-	  /* State-dependent.  */
-	  return 1;
-	}
-
-      ptr = t;
-
-      for (i = 0; i < n; i++)
-        {
-          curr_ch = t[i];
-          switch (curr_ch)
-            {
-	    case JIS_ESC_CHAR:
-              ch = ESCAPE;
-              break;
-	    case '$':
-              ch = DOLLAR;
-              break;
-            case '@':
-              ch = AT;
-              break;
-            case '(':
-	      ch = BRACKET;
-              break;
-            case 'B':
-              ch = B;
-              break;
-            case 'J':
-              ch = J;
-              break;
-            case '\0':
-              ch = NUL;
-              break;
-            default:
-              if (ISJIS (curr_ch))
-                ch = JIS_CHAR;
-              else
-                ch = OTHER;
-	    }
-
-          action = JIS_action_table[curr_state][ch];
-          curr_state = JIS_state_table[curr_state][ch];
-
-          switch (action)
-            {
-            case NOOP:
-              break;
-
-            case EMPTY:
-	      if (pwc != NULL)
-		*pwc = (wchar_t) 0;
-
-	      save_state = curr_state;
-              return i;
-
-            case COPYA:
-	      if (pwc != NULL)
-		*pwc = (wchar_t) *ptr;
-	      save_state = curr_state;
-              return i + 1;
-
-            case COPYJ:
-	      if (pwc != NULL)
-		*pwc = (((wchar_t) *ptr) << 8) + (wchar_t) (*(ptr + 1));
-
-	      save_state = curr_state;
-              return i + 1;
-
-            case COPYJ2:
-	      if (pwc != NULL)
-		*pwc = (((wchar_t) *ptr) << 8) + (wchar_t) (*(ptr + 1));
-
-	      save_state = curr_state;
-              return ptr - t + 2;
-
-            case MAKE_A:
-            case MAKE_J:
-              ptr = (const unsigned char *) (t + i + 1);
-              break;
-
-            case ERROR:
-            default:
-              return -1;
-            }
-        }
-
-      /* More than n bytes needed.  */
-      return -1;
-    }
-
-#ifdef CROSS_COMPILE
-  if (s == NULL)
-    /* Not state-dependent.  */
-    return 0;
-
-  if (pwc != NULL)
-    *pwc = *s;
-  return 1;
-#else
-
-  /* This must be the "C" locale or unknown locale.  */
-  return mbtowc (pwc, s, n);
-#endif
-}
-
-/* Return the number of bytes in the multibyte character at the start
-   of the buffer S of size N.  Return -1 if the bytes do not form a
-   valid character, or 0 if S is null or points to a null byte.
-
-   This function behaves like the Standard C function mblen, except
-   it treats locale names of the form "C-..." specially.  */
-
-int
-local_mblen (const char *s, size_t n)
-{
-  return local_mbtowc (NULL, s, n);
-}
-
-/* Return the maximum mumber of bytes in a multibyte character.
-
-   This function returns the same value as the Standard C macro MB_CUR_MAX,
-   except it treats locale names of the form "C-..." specially.  */
-
-int
-local_mb_cur_max (void)
-{
-  if (literal_codeset == NULL || strlen (literal_codeset) <= 1)
-    ;
-  else if (! strcmp (literal_codeset, "C-SJIS"))
-    return 2;
-  else if (! strcmp (literal_codeset, "C-EUCJP"))
-    return 2;
-  else if (! strcmp (literal_codeset, "C-JIS"))
-    return 8; /* 3 + 2 + 3 */
-
-#ifdef CROSS_COMPILE
-  return 1;
-#else
-  if (MB_CUR_MAX > 0)
-    return MB_CUR_MAX;
-
-  return 1; /* default */
-#endif
-}
-#else  /* MULTIBYTE_CHARS */
-extern int dummy;  /* silence 'ANSI C forbids an empty source file' warning */
-#endif /* MULTIBYTE_CHARS */
diff --git a/gcc/mbchar.h b/gcc/mbchar.h
deleted file mode 100644
index 3846a8cfbbd..00000000000
--- a/gcc/mbchar.h
+++ /dev/null
@@ -1,41 +0,0 @@
-/* Various declarations for functions found in mbchar.c
-   Copyright (C) 1998, 1999, 2000, 2003 Free Software Foundation, Inc.
-
-This file is part of GCC.
-
-GCC is free software; you can redistribute it and/or modify it under
-the terms of the GNU General Public License as published by the Free
-Software Foundation; either version 2, or (at your option) any later
-version.
-
-GCC is distributed in the hope that it will be useful, but WITHOUT ANY
-WARRANTY; without even the implied warranty of MERCHANTABILITY or
-FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-for more details.
-
-You should have received a copy of the GNU General Public License
-along with GCC; see the file COPYING.  If not, write to the Free
-Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-02111-1307, USA.  */
-
-#ifndef GCC_MBCHAR_H
-#define GCC_MBCHAR_H
-
-#ifdef MULTIBYTE_CHARS
-
-/* Escape character used for JIS encoding */
-#define JIS_ESC_CHAR 0x1b
-
-#define ISSJIS1(c)   (((c) >= 0x81 && (c) <= 0x9f) || ((c) >= 0xe0 && (c) <= 0xef))
-#define ISSJIS2(c)   (((c) >= 0x40 && (c) <= 0x7e) || ((c) >= 0x80 && (c) <= 0xfc))
-#define ISEUCJP(c)   ((c) >= 0xa1 && (c) <= 0xfe)
-#define ISJIS(c)     ((c) >= 0x21 && (c) <= 0x7e)
-
-extern int local_mbtowc (wchar_t *, const char *, size_t);
-extern int local_mblen (const char *, size_t);
-extern int local_mb_cur_max (void);
-
-/* The locale being used for multibyte characters in string/char literals.  */
-extern const char *literal_codeset;
-#endif /* MULTIBYTE_CHARS */
-#endif /* ! GCC_MBCHAR_H */
diff --git a/gcc/system.h b/gcc/system.h
index 67ddaff5ce3..37d68f5f572 100644
--- a/gcc/system.h
+++ b/gcc/system.h
@@ -607,7 +607,7 @@ typedef char _Bool;
 	DBX_LBRAC_FIRST DBX_OUTPUT_ENUM DBX_OUTPUT_SOURCE_FILENAME	   \
 	DBX_WORKING_DIRECTORY INSN_CACHE_DEPTH INSN_CACHE_SIZE		   \
 	INSN_CACHE_LINE_WIDTH INIT_SECTION_PREAMBLE NEED_ATEXIT ON_EXIT	   \
-	EXIT_BODY OBJECT_FORMAT_ROSE
+	EXIT_BODY OBJECT_FORMAT_ROSE MULTIBYTE_CHARS
 
 /* Hooks that are no longer used.  */
  #pragma GCC poison LANG_HOOKS_FUNCTION_MARK LANG_HOOKS_FUNCTION_FREE	\