Yup, the dependency is useless and should be cleaned up, but it’s actually not a bug. There’s only one requirement - it must build in the target suite and that’s buster.
My gentle suggestion would be to use: https://php.debian.net/php/README.txt It’s little bit more intrusive in regards of the backporting the libraries, but it just works. Ondrej -- Ondřej Surý ond...@sury.org > On 17 Apr 2019, at 12:37, Tim Bray <t...@kooky.org> wrote: > > Package: php7.3 > Version: 7.3.3-1 > Severity: minor > > > While trying to backport php7.3 to stretch, I noticed that php won't build > with the stretch version of libargon2 > > Current build dependency is: > libargon2-dev | libargon2-0-dev > > This needs changing to > libargon2-dev > > > > libargon2-dev - buster. Works. Not in stretch. > libargon2-0-dev - stretch (doesn't build) Virtual in buster. > > > >