A good sysadmin tip is that if there is a standard prefix in which you
install things (in our case /packages), you should define (for all
users) the environment variables C_INCLUDE_PATH, LIBRARY_PATH and
LD_LIBRARY_PATH to point to (respectively) /packages/include,
/packages/lib and /packages/lib.
If you are installing in your own /home/bakicale/my-prefix, then you
should define those variables for yourself.
The nice thing about that is that you don't have to do clever -I
stuff, and configure will find all your special libraries and stuff.