Helcio Wagner <hwsilva@xxxxxxxxxxxx> writes: > I am using gcc 4.6.3 on Ubuntu 12.04. > > First of all, I have no LD_LIBRARY_PATH environment variable set. Should I have it? > > Well, I've edited '.bashrc' file to define LD_LIBRARY_PATH and pointed it to '/usr/lib' and '/usr/local/lib' directories: > > export LD_LIBRARY_PATH=/usr/lib:/usr/local/lib It is not normally necessary to add these directories to LD_LIBRARY_PATH. See "man ldconfig". > My executable (named 'test') needs to be linked to two shared libraries to be generated: 'libncx.so.2.2' and 'libagt.so.2.2'. Both are located on '/usr/lib' directory. However, when I type 'gcc -Wall test2.c', there is a message relating undefined references. The executable was not generated. A problem at link time is most likely not due to LD_LIBRARY_PATH. When reporting an error message, please cut and paste the exact, complete, error output. Otherwise we don't know what happened. Ian
