The headers and libraries files that c-ares required to compile applications or shared objects are contained in c-ares-devel package.
acquired package info from repodata DB: repodata/79ff1068e9d07a15d2712f09bc476abe43ac050557d357d3f2a53b1cb7f5c522-primary.sqlite.bz2
A C library for asynchronous DNS requests
This is c-ares, an asynchronous resolver library. It is intended for applications which need to perform DNS queries without blocking, or need to perform multiple