Package: php-memcached Version: 3.0.4+2.2.0-3 For some reason the current version of the package only contains the extension files for PHP 7.2, while Debian currently also has packages php7.0, php7.1, and php7.3.
$ dpkg -c php-memcached_3.0.4+2.2.0-3_amd64.deb drwxr-xr-x root/root 0 2018-08-19 11:07 ./ drwxr-xr-x root/root 0 2018-08-19 11:07 ./etc/ drwxr-xr-x root/root 0 2018-08-19 11:07 ./etc/php/ drwxr-xr-x root/root 0 2018-08-19 11:07 ./etc/php/7.2/ drwxr-xr-x root/root 0 2018-08-19 11:07 ./etc/php/7.2/mods-available/ -rw-r--r-- root/root 176 2018-08-19 11:07 ./etc/php/7.2/mods-available/memcached.ini drwxr-xr-x root/root 0 2018-08-19 11:07 ./usr/ drwxr-xr-x root/root 0 2018-08-19 11:07 ./usr/lib/ drwxr-xr-x root/root 0 2018-08-19 11:07 ./usr/lib/php/ drwxr-xr-x root/root 0 2018-08-19 11:07 ./usr/lib/php/20170718/ -rw-r--r-- root/root 114704 2018-08-19 11:07 ./usr/lib/php/20170718/memcached.so drwxr-xr-x root/root 0 2018-08-19 11:07 ./usr/share/ drwxr-xr-x root/root 0 2018-08-19 11:07 ./usr/share/doc/ drwxr-xr-x root/root 0 2018-08-19 11:07 ./usr/share/doc/php-memcached/ -rw-r--r-- root/root 362 2018-08-19 11:07 ./usr/share/doc/php-memcached/NEWS.Debian.gz -rw-r--r-- root/root 1875 2017-11-21 00:01 ./usr/share/doc/php-memcached/README.markdown -rw-r--r-- root/root 3075 2018-08-19 11:07 ./usr/share/doc/php-memcached/changelog.Debian.gz -rw-r--r-- root/root 3577 2018-08-19 11:07 ./usr/share/doc/php-memcached/copyright Rebuilding php-memcached using dpkg-builpackage (after rebuilding various of its dependencies, which also seem to suffer from this bug) generates a version that does have the necessary extension files. $ dpkg -c /usr/local/src/bugfix-debs/php-redis/php-memcached_3.0.4+2.2.0-3_amd64.deb drwxr-xr-x root/root 0 2018-08-19 11:07 ./ drwxr-xr-x root/root 0 2018-08-19 11:07 ./etc/ drwxr-xr-x root/root 0 2018-08-19 11:07 ./etc/php/ drwxr-xr-x root/root 0 2018-08-19 11:07 ./etc/php/7.0/ drwxr-xr-x root/root 0 2018-08-19 11:07 ./etc/php/7.0/mods-available/ -rw-r--r-- root/root 176 2018-08-19 11:07 ./etc/php/7.0/mods-available/memcached.ini drwxr-xr-x root/root 0 2018-08-19 11:07 ./etc/php/7.1/ drwxr-xr-x root/root 0 2018-08-19 11:07 ./etc/php/7.1/mods-available/ -rw-r--r-- root/root 176 2018-08-19 11:07 ./etc/php/7.1/mods-available/memcached.ini drwxr-xr-x root/root 0 2018-08-19 11:07 ./etc/php/7.2/ drwxr-xr-x root/root 0 2018-08-19 11:07 ./etc/php/7.2/mods-available/ -rw-r--r-- root/root 176 2018-08-19 11:07 ./etc/php/7.2/mods-available/memcached.ini drwxr-xr-x root/root 0 2018-08-19 11:07 ./etc/php/7.3/ drwxr-xr-x root/root 0 2018-08-19 11:07 ./etc/php/7.3/mods-available/ -rw-r--r-- root/root 176 2018-08-19 11:07 ./etc/php/7.3/mods-available/memcached.ini drwxr-xr-x root/root 0 2018-08-19 11:07 ./usr/ drwxr-xr-x root/root 0 2018-08-19 11:07 ./usr/lib/ drwxr-xr-x root/root 0 2018-08-19 11:07 ./usr/lib/php/ drwxr-xr-x root/root 0 2018-08-19 11:07 ./usr/lib/php/20151012/ -rw-r--r-- root/root 114704 2018-08-19 11:07 ./usr/lib/php/20151012/memcached.so drwxr-xr-x root/root 0 2018-08-19 11:07 ./usr/lib/php/20160303/ -rw-r--r-- root/root 114704 2018-08-19 11:07 ./usr/lib/php/20160303/memcached.so drwxr-xr-x root/root 0 2018-08-19 11:07 ./usr/lib/php/20170718/ -rw-r--r-- root/root 114704 2018-08-19 11:07 ./usr/lib/php/20170718/memcached.so drwxr-xr-x root/root 0 2018-08-19 11:07 ./usr/lib/php/20180606/ -rw-r--r-- root/root 114704 2018-08-19 11:07 ./usr/lib/php/20180606/memcached.so drwxr-xr-x root/root 0 2018-08-19 11:07 ./usr/share/ drwxr-xr-x root/root 0 2018-08-19 11:07 ./usr/share/doc/ drwxr-xr-x root/root 0 2018-08-19 11:07 ./usr/share/doc/php-memcached/ -rw-r--r-- root/root 362 2018-08-19 11:07 ./usr/share/doc/php-memcached/NEWS.Debian.gz -rw-r--r-- root/root 1875 2017-11-21 00:01 ./usr/share/doc/php-memcached/README.markdown -rw-r--r-- root/root 3075 2018-08-19 11:07 ./usr/share/doc/php-memcached/changelog.Debian.gz -rw-r--r-- root/root 3577 2018-08-19 11:07 ./usr/share/doc/php-memcached/copyright
