hi to all
i have problem in NS-2.27 i make modification on pi.cc and pi.h and i make recompile by using the following instructions:

cd ~/ns-allinone-2.27/ns-2.27
./configure --x-libraries=/usr/x11R6/lib/--x-includes=/usr/x11R6/include/
make ;make install


and after finsh the last instruction i needed to run my TCL program when i type:

ns exp.tcl

it appeared the following message:

bash:ns: command not found

can anyone help me to solve this problem pleeeeeeeeeease....
thank u.

You need a a space before "--x-includes"

If you have previously compiled ns2 by the three commands that you showed and it won't work after you made source file changes, I recommend the following:

1. Execute the configure all by itself:
   
   Code:

   ./configure --x-libraries=/usr/x11R6/lib/ --x-includes=/usr/x11R6/include/

   
   Actually I always save the configure output so that I can inspect all of the results after everything has scrolled off of the screen. Paste the following onto your command line:
   
   Code:

   ./configure --x-libraries=/usr/x11R6/lib/ --x-includes=/usr/x11R6/include/  2>& 1 | tee configure.log

   
   
2. Look carefully in the file configure.log to see if there were problems. If something looks wrong, make whatever changes are indicated and execute the above command again.
   
   
3. Now execute make all by itself. I recommend that you save the output in a file:
   
   Code:

   make 2>& 1 | tee make.log

   
   
4. If all is OK, then execute make install
   
   Code:

   make install 2>& 1 | tee install.log

If you previously just ran configure from the allinone directory and did not compile ns2 by itself, I would probably go back to the allinone directory and run the configure command from there.


Let us know how it turns out.


Regards,

Dave

Dear Dave:
i am thank you for your attention for my problem i execute your instructions as following:

i get the following:

Now for the follwing command:


i get the following:

Which showes error i don't understand the reason of this error

and for this command:


i get this:

/
i hope that you can help me
thank you very much

Ali

That was the command line that you had originally shown except that I put a space before the "--x-includes". I suggested that you could expect this to work if you had previously compiled ns2 by itself like this. I didn't question why you were using that. Now I ask it: Why did you put those values for --x-libraries and --x-includes?

On my Centos Linux systems the X11 libraries are under directory /usr/lib, not /usr/x11R6. Not all installations have the same location, and, in fact I don't have to tell gcc where to find the X11 libraries; it was given that information when the libraries were installed. Some installations have the X11 libraries at /usr/X11R6 (note the upper case X), maybe some have them at other places. Try "whereis libX11" on the command line (Note upper case X) and maybe your system will tell you.


It looks to me as if you gave the configure command the x-libraries parameter a value of something like /usr/11xR6 and not /usr/x11R6 as you posted. It's really (really) important that you tell us exactly what you are doing.

In any case, since make failed, there is absolutely no reason to try make install. The idea is to take things (configure, make, make install) one step at a time. Don't even think about going to the next step until it looks OK at the current step. That's why I suggested that you save each step's progress in a log file. Look (yes, look) at the log file at each step.

Here's my next suggestion: Instead of trying to make ns by itself, start all over again in the allinone directory. (See Footnote.)

Enter the following on a command line in the ns-allinone-2.34 directory (or whatever allinone directory you have).


The tail end of install.log should tell the tale.

If you still have problems or if you have any further questions, tell us what Linux distribution you are using and what version.

For example mine is a 32-bit Centos 5.3 distribution. If you are using something else, I may or may not be able to give specific directions, but I'm willing to try. Also, maybe someone else with a distribution like yours can help. My point being that when things don't go exactly as you expect, we are more likely to be able to help with fewest iterations if we know exactly what you are using.


Regards,

Dave

Footnotes: In my previous post I suggested that you run "configure" from the allinone directory. That was a mistake. Current distributions of ns-allinone don't have the configure script in that directory. Run install as I show in this post.

Also note that ns-allinone-2.27 is outdated. (It was released in 2004.) Current versions of gcc have problems with some of the stuff there. I strongly recommend that you download the latest version from here: http://sourceforge.net/projects/nsna...allinone-2.34/

Dear Dave
i use cygwin (Linux-like environment for Windows)
in my project i need to modifay some files that alrady come with Ns2.27
those files: pi.cc , pi.h
and my main program is exp.tcl
when i search on internet they told me: when i make chages i need to reconfigure Ns-2 and they give me the instructions that i showed in my firest post but as you see when i run those istructions it give error..
i tray ./install and when i type :
ns exp.tcl
i get this ns:command not found
i ask you to give me the right way to reconfigure NS-2.

Note: when i install cygwin i get this message:
http://img101.herosh.com/2009/08/21/119271825.jpg
does this effect??
thank you

The massage
http://img101.herosh.com/2009/08/21/119271825.jpg

http://
img101.herosh.com/2009/08/21/119271825.jpg

It says to reinstall cygwin.
I would go to http://www.cygwin.com/ and I would click on Install or update

If you had mentioned that you are trying to run on Windows, I probably wouldn't have responded, since I don't run any X11 stuff on any of my Windows workstations.

Bottom line: I can't help. Sorry.

Regards,

Dave

"Over and out."