Debugging run-time linking errors

[playmesumch00ns]

On the fedora boxes I use at work, when the linker cannot find a shared library (because the LD_LIBRARY_PATH does not include it), it prints out a handy message like:

error while loading shared libraries: libMyLib.so: cannot open shared object file: No such file or directory

before the program even starts up. On Ubuntu Breezy at home, I just get errors about undefined symbols during program execution. Is there a way to enable the behaviour above, as it's a lot easier to tell what's going on.


Also, on fedora if I:

# In tcsh
setenv LDDEBUG files

I get a very handy (but very verbose) output of everything the linker's doing when a program runs. This is essential for trying to debug linking errors in my shared libraries, but I can seem to get the same behaviour on ubuntu. I tried:

#in bash
export LDDEBUG=files

But I dont get any output...

[toojays]

It should be LD_DEBUG (i.e. with an underscore).