[Bug fortran/50109] [4.3/4.4/4.5/4.6 Regression] Formatted namelist read with multiple "!" fails with: Cannot match namelist object name !

[burnus at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50109

--- Comment #4 from Tobias Burnus <burnus at gcc dot gnu.org> 2011-08-18 
09:11:21 UTC ---
Draft patch:

--- a/libgfortran/io/list_read.c
+++ b/libgfortran/io/list_read.c
@@ -345,28 +345,19 @@ eat_separator (st_parameter_dt *dtp)
          do
            {
              if ((c = next_char (dtp)) == EOF)
                  return LIBERROR_END;
              if (c == '!')
                {
                  err = eat_line (dtp);
                  if (err)
                    return err;
-                 if ((c = next_char (dtp)) == EOF)
-                   return LIBERROR_END;
-                 if (c == '!')
-                   {
-                     err = eat_line (dtp);
-                     if (err)
-                       return err;
-                     if ((c = next_char (dtp)) == EOF)
-                       return LIBERROR_END;
-                   }
+                 c = '\n';
                }
            }
          while (c == '\n' || c == '\r' || c == ' ' || c == '\t');
          unget_char (dtp, c);
        }
       break;

     case '!':
       if (dtp->u.p.namelist_mode)