Tried to install GPSBabel Version 1.3.6
on my Fedora 9/10 mixed install.
Though had both expat and expat-devel installed.
A missing libexpat.so.0 kept bothering me.
Though I haad libexpat.so.1, the complains.
Tried to fool it by linking libexpat.so.0 to libexpat.so.1 but failed.
Read somewhere that compat-expat1 would solve the problem. Tried it out. It live up to its name.
Get it from here.