libespeak-ng-libespeak-dev 1.50+dfsg-7build2 (amd64 binary) in ubuntu impish

 eSpeak NG is a software speech synthesizer for English, and some other
 languages.
 .
 This package contains compatibility links that makes it a drop-in replacement
 for the libespeak-dev package. Building against this package thus allows one
 to migrate to using eSpeak NG without any source code change.