https://packages.debian.org/search?keywords=libflac%2B%2B10
Debian -- Package Search Results -- libflac++10
debian packagesearch results
https://download.opensuse.org/update/leap/15.1/oss/i586/libFLAC++6-1.3.2-lp151.3.1_lp151.4.3.1.i586.drpm.mirrorlist
Mirrors for /update/leap/15.1/oss/i586/libFLAC++6-1.3.2-lp151.3.1_lp151.4.3.1.i586.drpm - openSUSE...