Gcc build

[John Levin]

Hi,
I have to create a cross compiler for gcc for AIX . How do i create the
crosscompiler. I don't have the headers . I will have to buy a machine.
Somewhere i read kai rutto mentioning gcc can be built in parallel with
glibc headers . I am not clear about the situation. Can someone tell me
how to build gcc with glibc headers when i don't have access to the
remote system.
Thanks
 Levin