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/e30d7685744a7c83e00e34883b4caa13098c6dd4580c70b9313f50e8b8c0aee4-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