ddd && perl: bug-fix detection of "sources have been recompiled"

[Peter Ernst]

Problem description:

   DDD 3.3.1 with Perl: when debugging a Perl program, DDD doesn't
                        detect when the source files have been
                        modified and continues showing old versions of
                        the source from its source_file_cache.
                        The manual Source->Reload Source is working.

Fix description:

            DDD's PosBuffer (ddd/PosBuffer.C) sets a "recompiled" flag
            on certain messages from GDB or DBX. This flag causes
            DDD to flush its source_file_cache. Until now there has
            been no code to set the "recompiled" flag if Perl is in
            use.

            The "recompiled" flag should be set, when
            PosBuffer::filter detects
              has_prefix(answer, "Loading DB routines from perl5db.pl")
            if Perl is in use.


here's the patch:

------------- begin patch -------------------
*** PosBuffer.C.orig    Tue Jan 16 09:47:55 2001
--- PosBuffer.C Thu Jun  6 12:11:16 2002
***************
*** 198,207 ****
      }
      break;

      case XDB:
      case JDB:
      case PYDB:
-     case PERL:
        break;                  // Nothing special
      }

--- 198,213 ----
      }
      break;

+     case PERL:
+     {
+       if (has_prefix(answer, "Loading DB routines from perl5db.pl"))
+           recompiled = true;
+     }
+     break;
+
      case XDB:
      case JDB:
      case PYDB:
        break;                  // Nothing special
      }

------------- end patch -------------------

Kind regards,

     Peter Ernst

-- 
=======================================================================
 Peter Ernst
 Department of Molecular Biophysics - H0200
 Deutsches Krebsforschungszentrum (German Cancer Research Center) DKFZ
 Im Neuenheimer Feld 280
 69120 Heidelberg, Germany                     phone: +49-6221-42-2330
 http://genome.dkfz-heidelberg.de/               fax: +49-6221-42-2333
=======================================================================