gcc include paths and their order

robert@debian-rbt:~$ `gcc -print-prog-name=cc1` -v -I/home/robert/
ignoring nonexistent directory "/usr/local/include/i486-linux-gnu"
ignoring nonexistent directory "/usr/lib/gcc/i486-linux-gnu/4.4.5/../../../../i486-linux-gnu/include"
ignoring nonexistent directory "/usr/include/i486-linux-gnu"
#include "..." search starts here:
#include <...> search starts here:
/home/robert/
/usr/local/include
/usr/lib/gcc/i486-linux-gnu/4.4.5/include
/usr/lib/gcc/i486-linux-gnu/4.4.5/include-fixed
/usr/include
End of search list.

Ref:

Where does gcc look for C and C++ header files?