CONFIG_M68040 is not available for the selected architecture x86.
Result is shown for architecture m68k
68040 support
configname: CONFIG_M68040
Linux/68k Kernel Configuration
└─>Platform dependent setup
└─>68040 support
In linux kernel since version 2.6.12 )
If you anticipate running this kernel on a computer with a MC68LC040
or MC68040 processor, say Y. Otherwise, say N. Note that an
MC68EC040 will not work, as it does not include an MMU (Memory
Management Unit).
or MC68040 processor, say Y. Otherwise, say N. Note that an
MC68EC040 will not work, as it does not include an MMU (Memory
Management Unit).