CONFIG_CLASSIC32 is not available for thedefaultarchitecture x86.
Result is shown for architecture powerpc
6xx/7xx/74xx
configname: CONFIG_CLASSIC32
Processor Type
└─>6xx/7xx/74xx
In linux kernel since version 2.6.16 (release Date: 2006-03-19)
There are four families of PowerPC chips supported. The more common
types (601, 603, 604, 740, 750, 7400), the Motorola embedded
versions (821, 823, 850, 855, 860, 52xx, 82xx, 83xx), the AMCC
embedded versions (403 and 405) and the high end 64 bit Power
processors (POWER 3, POWER4, and IBM PPC970 also known as G5).
Unless you are building a kernel for one of the embedded processor
systems, 64 bit IBM RS/6000 or an Apple G5, choose 6xx.
Note that the kernel runs in 32-bit mode even on 64-bit chips.
types (601, 603, 604, 740, 750, 7400), the Motorola embedded
versions (821, 823, 850, 855, 860, 52xx, 82xx, 83xx), the AMCC
embedded versions (403 and 405) and the high end 64 bit Power
processors (POWER 3, POWER4, and IBM PPC970 also known as G5).
Unless you are building a kernel for one of the embedded processor
systems, 64 bit IBM RS/6000 or an Apple G5, choose 6xx.
Note that the kernel runs in 32-bit mode even on 64-bit chips.