Hi all,

I have a problem while installing the ns software on my fedora os...its says tcl/ts missing....but i already have the tcl/ts installed...the configure file isnt seeeing it..pls someone tell me how to go abt installing it.
Thanks in advance.

Just as a friendly warning. In future, try adding a little more detail to your question.

1) You added the distro you're currently using, which is good, now add the distro version as well, so Fedora Core 9 or whatever the case may be.
2) Sometimes it's usefull to add a link to the software your trying to compile so people can try it for themselves.
3) In some cases it may even be usefull to know more about your hardware, so 32bit or 64bit cpu.
4) Some commandline output is REALLY usefull. Copy and paste is your friend here.

Now...

I take it your trying to compile the software. Don't know if all this will help, but it's worth a go......

1) Read the output carefully. If configure is trying to find a library it may be asking for one that's close but not quite the same as the one you installed, so 'libACME.so.5.3', and you have 'libACME.so.5.2'.
In cases like this, I sometimes just create a symbolic link.....
2) I've not used fedora my self. Does it use package config at all. If so, configure might be asking for a 'pc' file. What quite often happens here is that he'll be looking in /usr/lib/pkgconfig/ and your 'pc' file is in '/usr/local/lib/pkgconfig/'.
You can use the environment variable 'PKG_CONFIG_PATH' to add more paths so......
3) If you used your package manager to install tcl/tk then see if he installed all tcl/tk libraries. Some distro's, like ubuntu, save installation space by installing the development files seperately to run-time files, so you might have to install additional packages when compiling software. Look out for a tcl/tk package with 'dev' in the name.

Hope you come right :-)