I would like to know how you can support i386 and ppc architectures for programs at /bin.
I run for instance
bin $ file amber
I get
amber: setgid Mach-O universal binary with 2 architectures
amber (for architecture i386): Mach-O executable i386
amber (for architecture ppc): Mach-O executable ppc
How do programs support i386 and ppc in the source code?
In other words, which components can you remove, for instance, in /bin/amber if you remove the support of ppc -architecture?