libc-ares-dev - 1.14.0-1+deb10u1 main

c-ares is a C library that performs DNS requests and name resolution
asynchronously.
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It is a fork of the library named "ares", with additional features:
* IPv6 support;
* extended cross-platform portability;
* 64-bit clean sources.
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This package contains development files (headers and static libraries).