slackbuilds_ponce/development/newlib-headers

Newlib headers is a C library intended for use on embedded systems.
It is a conglomeration of several library parts, all under free
software licenses that make them easily usable on embedded products.

Newlib is only available in source form. It can be compiled for a
wide array of processors, and will usually work on any architecture
with the addition of a few low-level routines.