Cross Platform Programming

What is the most pragmatically cross platform language that isn't Java*? I need something that have a ton of cross platform libraries. Something that I can compile with very minor trouble on all different desktop OSes.

The most important libraries that I would need are probably db queries through networks.

I only need this to run on x86 variants (probably) but across all types of OSes from Windows CE to Windows 2003 to Windows Xp to RHEL to OSX.

I can program in both imperative and functional styles but I'm admitted a bit rusty in imperative programming.

*I can't use Java because the JVM is blacklisted because of it's history of insecurities.

LISP

any important system has a LISP compiler and Interpreter, but even if you manage to find one that doesn't,  LISP is so small that you could easily implement it on that system whike sitting on the bus ride home