CONFIG_OLD_SIGSUSPEND3 (not configurable)

configname: CONFIG_OLD_SIGSUSPEND3

Linux Kernel Configuration
└─>OLD_SIGSUSPEND3
In linux kernel since version 3.1 (release Date: 2011-10-24)  
Even weirder antique ABI - three-argument sigsuspend(2)

is depended by
CONFIG_COMPAT_32