I noticed that ns-allinone-2.34 did not build on the new Ubuntu 9.10 Karmic, due to this this error when linking:
otcl.o: In function `OTclDispatch': /home/ns/ns-allinone-2.34/otcl/otcl.c:495: undefined reference to `__stack_chk_fail_local' otcl.o: In function `Otcl_Init': /home/ns/ns-allinone-2.34/otcl/otcl.c:2284: undefined reference to `__stack_chk_fail_local' ld: libotcl.so: hidden symbol `__stack_chk_fail_local' isn't defined ld: final link failed: Nonrepresentable section on output make: *** [libotcl.so] Error 1 The problem is that otcl is trying to use the ld linker instead of the gcc linker to build a shared library. I have read that this problem can occur with gcc versions 4 and greater. There is a one line fix to otcl-1.13/configure file that is posted here: http://nsnam.isi.edu/nsnam/index.php/User_Information#Ubuntu_Installation_Guide This may affect other Linux distributions, but I didn't notice it until this Ubuntu release. Tom
