CONFIG_OLIVETTI_M700 is not available for thedefaultarchitecture x86.
Result is shown for architecture mips

Support for Olivetti M700-10

configname: CONFIG_OLIVETTI_M700

Linux/MIPS Kernel Configuration
└─>Machine selection
└─>Support for Olivetti M700-10
In linux kernel since version 2.6.12  
This is a machine with a R4000 100 MHz CPU. To compile a Linux
kernel that runs on these, say Y here. For details about Linux on
the MIPS architecture, check out the Linux/MIPS FAQ on the WWW at
<http://www.linux-mips.org/>.