re PR fortran/33538 (bootstrap break in fortran on *-apple-darwin r128671)

	PR fortran/33538
	* scanner.c, parse.c, gfortran.h: Revert revision 128671.

From-SVN: r128724

gcc/fortran/ChangeLog

+2007-09-24  Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>
+
+	PR fortran/33538
+	* scanner.c, parse.c, gfortran.h: Revert revision 128671.
+
 2007-09-23  Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>
 
 	PR fortran/33528

gcc/fortran/gfortran.h

@@ -1935,7 +1935,6 @@ int gfc_at_bol (void);
 int gfc_at_eol (void);
 void gfc_advance_line (void);
 int gfc_check_include (void);
-int gfc_define_undef_line (void);
 
 void gfc_skip_comments (void);
 int gfc_next_char_literal (int);

gcc/fortran/parse.c

@@ -25,7 +25,6 @@ along with GCC; see the file COPYING3.  If not see
 #include "gfortran.h"
 #include "match.h"
 #include "parse.h"
-#include "debug.h"
 
 /* Current statement label.  Zero means no statement label.  Because new_st
    can get wiped during statement matching, we have to keep it separate.  */
@@ -674,9 +673,6 @@ next_statement (void)
 	  break;
 	}
 
-      if (gfc_define_undef_line ())
-	continue;
-
       st = (gfc_current_form == FORM_FIXED) ? next_fixed () : next_free ();
 
       if (st != ST_NONE)
@@ -3223,11 +3219,6 @@ gfc_parse_file (void)
   gfc_statement st;
   locus prog_locus;
 
-  /* If the debugger wants the name of the main source file,
-     we give it.  */
-  if (debug_hooks->start_end_main_source_file)
-    (*debug_hooks->start_source_file) (0, gfc_source_file);
-
   top.state = COMP_NONE;
   top.sym = NULL;
   top.previous = NULL;
@@ -3338,9 +3329,6 @@ loop:
   goto loop;
 
 done:
-  if (debug_hooks->start_end_main_source_file)
-    (*debug_hooks->end_source_file) (0);
-
   return SUCCESS;
 
 duplicate_main:

gcc/fortran/scanner.c

@@ -45,8 +45,6 @@ along with GCC; see the file COPYING3.  If not see
 #include "system.h"
 #include "gfortran.h"
 #include "toplev.h"
-#include "debug.h"
-#include "flags.h"
 
 /* Structure for holding module and include file search path.  */
 typedef struct gfc_directorylist
@@ -314,20 +312,6 @@ gfc_advance_line (void)
       return;
     } 
 
-  if (gfc_current_locus.lb->next)
-    {
-      if (gfc_current_locus.lb->file->next
-	  && gfc_current_locus.lb->file->up == gfc_current_locus.lb->file->next)
-	/* We exit from an included file. */
-	(*debug_hooks->end_source_file)
-		(gfc_linebuf_linenum (gfc_current_locus.lb->next));
-      else if (gfc_current_locus.lb->next->file != gfc_current_locus.lb->file)
-	/* We enter into a new file.  */
-	(*debug_hooks->start_source_file)
-		(gfc_linebuf_linenum (gfc_current_locus.lb),
-		 gfc_current_locus.lb->next->file->filename);
-    }
-
   gfc_current_locus.lb = gfc_current_locus.lb->next;
 
   if (gfc_current_locus.lb != NULL)	 
@@ -388,31 +372,6 @@ skip_comment_line (void)
 }
 
 
-int
-gfc_define_undef_line (void)
-{
-  /* All lines beginning with '#' are either #define or #undef.  */
-  if (! (debug_info_level == DINFO_LEVEL_VERBOSE
-	 && (write_symbols == DWARF2_DEBUG
-	     || write_symbols == VMS_AND_DWARF2_DEBUG))
-      || gfc_peek_char () != '#')
-    return 0;
-
-  if (strncmp (gfc_current_locus.nextc, "#define ", 8) == 0)
-    (*debug_hooks->define) (gfc_linebuf_linenum (gfc_current_locus.lb),
-			    &(gfc_current_locus.nextc[8]));
-
-  if (strncmp (gfc_current_locus.nextc, "#undef ", 7) == 0)
-    (*debug_hooks->undef) (gfc_linebuf_linenum (gfc_current_locus.lb),
-			   &(gfc_current_locus.nextc[7]));
-
-  /* Skip the rest of the line.  */
-  skip_comment_line ();
-
-  return 1;
-}
-
-
 /* Comment lines are null lines, lines containing only blanks or lines
    on which the first nonblank line is a '!'.
    Return true if !$ openmp conditional compilation sentinel was
@@ -1546,20 +1505,8 @@ load_file (const char *filename, bool initial)
 
       if (line[0] == '#')
 	{
-	  /* When -g3 is specified, it's possible that we emit #define
-	     and #undef lines, which we need to pass to the middle-end
-	     so that it can emit correct debug info.  */
-	  if (debug_info_level == DINFO_LEVEL_VERBOSE
-	      && (write_symbols == DWARF2_DEBUG
-		  || write_symbols == VMS_AND_DWARF2_DEBUG)
-	      && (strncmp (line, "#define ", 8) == 0
-		  || strncmp (line, "#undef ", 7) == 0))
-	    ;
-	  else
-	    {
-	      preprocessor_line (line);
-	      continue;
-	    }
+	  preprocessor_line (line);
+	  continue;
 	}
 
       /* Preprocessed files have preprocessor lines added before the byte