open inventor, kdevelop and mandrake linux

hi all!

i have compiled and installed open inventor (coin3d) on my linux box, and wanted to try a couple things out with open inventor from kdevelop.

installed oiv in /usr/local/lib.

created a simple c++ project and added the include and lib path to the project in configure options.

on compilation g++ gives an "undefined reference to class::functions(,,,)" where class::functions(,,,) are some of the SoQt and OIC classes.

i was wondering if this error is caused by linker not being able find the needed library, if so where should i flag the path?

is it LD_LIBRARY_PATH= ???

...AND what file and where does this file that need modification lives?


ALSO... will bash or gcc acept an INCLUDE= env var for all the include files on the system


THANKS IN ADVANCE