I never used valgrind before, so I'm into new territories with this, but I'll probably give it a try.

Thanks for your suggestion.

Update: valgrind rocks! Now I just cannot understand how come I never used it till now ... ?!

To all the fellow cowards like me (as I guess it was plain fear of yet-such-another-hard-to-use-debugging-tool that made me overlook it for so long): it's nothing to be afraid of! It's strong, but very gentle with newbies too - somewhat like Perl in this regard.

And yes, it gave me in just a few minutes the information I was trying to find for a few days already: it's an Oracle shared library that causes my headache: libclntsh.so.9.0. Now if that isn't of help, I don't know what would be...

Thanks again for pointing me this marveluous tool. I definitely became a fan of it in no time.