[Ns-developers] ns-2 release plans

[Lloyd Wood]

On 31 Dec 2009, at 00:37, Tom Henderson wrote:

> Since the last ns-2 release, I applied a few patches (most recently from Amir Habibi and Maxime de Roucy) to deal with gcc evolution, valgrind warnings, and the migration to Tcl/Tk version 8.5 on many distributions,

Tried Tcl/Tk 8.6? (the beta 1 ships with Mandriva; Wes Eddy's been playing with it, and pointed its needs out to me.)

>From a wander through various web cvs, I'd expect that otcl's direct accessing of interp->result ("fish result out of interp" etc. - see e.g. otcl.c's use of Tcl_Interp* in->result) and in->errorLine is most likely to be problematic for Tcl 8.6.

http://savi.cvs.sourceforge.net/viewvc/savi/savi-dev/src/include/tcl_utils.h?r1=1.13&r2=1.14
got SaVi 1.4.3 working under Tcl 8.6

		 /* necessary to tell Tcl 8.6 to be backwards-compatible
	 	  * and support interp->result
	 	  * Tcl_GetStringResult() / Tcl_SetResult() don't work in 7.x.
	 	  * http://www.tcl.tk/man/tcl8.6/TclLib/Interp.htm
	 	  */
	 	 #ifndef USE_INTERP_RESULT
	 	 #define USE_INTERP_RESULT
	 	 #endif

and I expect you'll also need:

		 #ifndef USE_INTERP_ERRORLINE
	 	 #define USE_INTERP_ERRORLINE
	 	 #endif

before the tcl.h include in otcl.h to get the existing otcl code working under Tcl/Tk 8.6. Untested patch doing this is below at end.

Other alternatives to these defines are:
- (easy) putting -DUSE_INTERP_RESULT -DUSE_INTERP_ERRORLINE in the otcl Makefile; not obvious or self-documenting,
- (harder) rewriting code to use the methods, at the expense of earlier Tcl/Tk.

Oh,
http://otcl-tclcl.sourceforge.net/tclcl/
http://otcl-tclcl.sourceforge.net/otcl/
the 'recent CHANGES' links need an update, now sourceforge has moved its cvsweb. Links should be to
http://otcl-tclcl.cvs.sourceforge.net/viewvc/otcl-tclcl/otcl/CHANGES.html
http://otcl-tclcl.cvs.sourceforge.net/viewvc/otcl-tclcl/tclcl/CHANGES.html

L.

satellite constellation visualization: http://savi.sf.net/

<http://info.ee.surrey.ac.uk/Personal/L.Wood/><L.Wood at surrey.ac.uk>

$ less patch.diff
*** otcl.h.orig 2009-12-31 01:12:13.000000000 +0000
--- otcl.h      2009-12-31 01:19:34.000000000 +0000
***************
*** 19,24 ****
--- 19,33 ----
  #ifndef _otcl_h_
  #define _otcl_h_
  
+ /* make Tcl 8.6 backwards-compatible http://www.tcl.tk/man/tcl8.6/TclLib/Interp.htm */
+ #ifndef USE_INTERP_ERRORLINE
+ #define USE_INTERP_ERRORLINE
+ #endif
+ 
+ #ifndef USE_INTERP_RESULT
+ #define USE_INTERP_RESULT
+ #endif
+ 
  #include <tcl.h>
  
  /* compatible char definition for versions < 8.4 */