CONFIG_ARCH_SUPPORTS_LTO_CLANG_THIN (not configurable)

configname: CONFIG_ARCH_SUPPORTS_LTO_CLANG_THIN

Linux Kernel Configuration
└─>General architecture-dependent options
└─>ARCH_SUPPORTS_LTO_CLANG_THIN
In linux kernel since version 5.2 (release Date: 2019-07-07)  
An architecture should select this option if it can support Clang's
ThinLTO mode.

is selected by
CONFIG_LTO_CLANG_THIN