CONFIG_AMIGA is not available for the selected architecture x86.
Result is shown for architecture m68k
Amiga support
configname: CONFIG_AMIGA
Linux/68k Kernel Configuration
└─>Platform dependent setup
└─>Amiga support
In linux kernel since version 2.6.12 )
This option enables support for the Amiga series of computers. If
you plan to use this kernel on an Amiga, say Y here and browse the
material available in <a href="https://www.kernel.org/doc/Documentation/m68k">Documentation/m68k</a>; otherwise say N.
you plan to use this kernel on an Amiga, say Y here and browse the
material available in <a href="https://www.kernel.org/doc/Documentation/m68k">Documentation/m68k</a>; otherwise say N.