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diff --git a/gcc/config/dbxcoff.h b/gcc/config/dbxcoff.h
index 1d5b4488..a2b36c0d 100644
--- a/gcc/config/dbxcoff.h
+++ b/gcc/config/dbxcoff.h
@@ -1,22 +1,21 @@
 /* Definitions needed when using stabs embedded in COFF sections.
-   Copyright (C) 1996 Free Software Foundation, Inc.
+   Copyright (C) 1996, 2004, 2007 Free Software Foundation, Inc.
 
-This file is part of GNU CC.
+This file is part of GCC.
 
-GNU CC is free software; you can redistribute it and/or modify
+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)
+the Free Software Foundation; either version 3, or (at your option)
 any later version.
 
-GNU CC is distributed in the hope that it will be useful,
+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 GNU CC; see the file COPYING.  If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA.  */
+along with GCC; see the file COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */
 
 /* This file may be included by any COFF target which wishes to
    support -gstabs generating stabs in sections, as produced by gas
@@ -24,10 +23,9 @@ Boston, MA 02111-1307, USA.  */
 
 /* Output DBX (stabs) debugging information if doing -gstabs.  */
 
-#undef DBX_DEBUGGING_INFO
-#define DBX_DEBUGGING_INFO
+#define DBX_DEBUGGING_INFO 1
 
-/* Generate SDB debugging information by default. */
+/* Generate SDB debugging information by default.  */
 
 #ifndef PREFERRED_DEBUGGING_TYPE
 #define PREFERRED_DEBUGGING_TYPE SDB_DEBUG
@@ -35,45 +33,22 @@ Boston, MA 02111-1307, USA.  */
 
 /* Be function-relative for block and source line stab directives.  */
 
-#undef DBX_BLOCKS_FUNCTION_RELATIVE
 #define DBX_BLOCKS_FUNCTION_RELATIVE 1
 
 /* but, to make this work, functions must appear prior to line info.  */
 
-#undef DBX_FUNCTION_FIRST
 #define DBX_FUNCTION_FIRST
 
 /* Generate a blank trailing N_SO to mark the end of the .o file, since
    we can't depend upon the linker to mark .o file boundaries with
    embedded stabs.  */
 
-#undef DBX_OUTPUT_MAIN_SOURCE_FILE_END
-#define DBX_OUTPUT_MAIN_SOURCE_FILE_END(FILE, FILENAME)			\
-  asm_fprintf (FILE,							\
-	       "\t.text\n\t.stabs \"\",%d,0,0,%LLetext\n%LLetext:\n", N_SO)
+#define DBX_OUTPUT_NULL_N_SO_AT_MAIN_SOURCE_FILE_END
 
 /* Like block addresses, stabs line numbers are relative to the
    current function.  */
 
-#undef ASM_OUTPUT_SOURCE_LINE
-#define ASM_OUTPUT_SOURCE_LINE(FILE, LINE)			\
-{ if (write_symbols == SDB_DEBUG) {				\
-    fprintf ((FILE), "\t.ln\t%d\n",				\
-	     ((sdb_begin_function_line > -1)			\
-	      ? (LINE) - sdb_begin_function_line : 1));		\
-  } else if (write_symbols == DBX_DEBUG) {			\
-    static int sym_lineno = 1;					\
-    char buffer[256];						\
-    ASM_GENERATE_INTERNAL_LABEL (buffer, "LM", sym_lineno);	\
-    fprintf (FILE, ".stabn 68,0,%d,", LINE);			\
-    assemble_name (FILE, buffer);				\
-    putc ('-', FILE);						\
-    assemble_name (FILE,					\
-		   XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0)); \
-    putc ('\n', FILE);						\
-    ASM_OUTPUT_INTERNAL_LABEL (FILE, "LM", sym_lineno);		\
-    sym_lineno++;						\
-  } }
+#define DBX_LINES_FUNCTION_RELATIVE 1
 
 /* When generating stabs debugging, use N_BINCL entries.  */