I believe the entry at http://nsnam.isi.edu/nsnam/index.php/Troubleshooting is somewhat misleading about compiling nsallinone-2.32 on Mac OS X Leopard 10.5.2. I do not believe there is much of a problem at all, just modify the ./install script. I have attached a patch that can be applied with patch -p1 < path_to_patch/nsleopard.diff All the patch does is to use the same options for Mac OS X (Darwin) as Cygwin does as far as telling the subprograms where to find the X11 headers and libraries.
Running stock Mac OS X Leopard 10.5.2 (with further security updates from Apple) and Macports installed but not in my PATH, I am able to compile successfully all of nsallinone-2.32, run the ./validate script for ns-2.32 with one platform specific test suite failing (Session 3 and Session 4 of ./test-all-session), and run ns with nam on sample scripts from the tutorial. The difference as far as I can tell between say Tiger and Leopard is that Leopard does not include the static versions of the X11 libraries in the default Unix location (libraries ending with .a). What appear to be older versions of these static libraries are found in the more complicated flags suggested at the wiki. The configure scripts for the subprograms check explicitly for libraries that end in either .a or .so which correspond to the Linux suffixes, but they do not check for .dylib which corresponds to the Mac OS X suffix for dynamic libraries (or libraries ending in .la which correspond to libtool). There's another place where the configure script checks for Darwin 7 and Darwin 8, but not Darwin 9 which is Leopard. Explicitly specifying --x-libraries=/usr/X11R6/lib --x-includes=/usr/X11R6/include and doing absolutely nothing else appears to result in static libraries being successfully built and linked. I do not even have to alter the environment variable that is the equivalent of LD_LIBRARY_PATH DYLIB_LIBRARY_PATH in my nstest.profile file that sets environment variables: I just set TCL_LIBRARY and PATH, and I don't even know if I have to set TCL_LIBRARY. (Probably a good idea since Mac OS X Leopard has its own version of Tcl and Tk 8.4.) Not only is ns-2.32 apparently working on Leopard, but I am having some success porting Chih-Heng Ke's extensions of ns2 to work with Evalvid, work that was originally done on Cygwin for version 2.28. http://140.116.72.80/~smallko/ns2/myevalvid2.htm
