On 2021-10-20 19:23:09, [email protected] wrote: > > when i install nextcloud it also installs php-7.3.31 and php-7.4.24, > this is probably due to dev-php/imagick-3.5.1 >
PHP is slotted, so it's not too unusual for multiple versions to be installed at the same time. An "emerge --depclean" may later remove the older one. But this alone is no cause for alarm. > if i install roundcube with use="change-password" php-8.0.11 is needed. > > i used use="-imagemagick" for nextcloud, and > all packages could agree on php-8.0.11. > > 1.if an application requires 2 different versions this can't work, > apache only uses one or? No, you're right. Whichever one you've eselected (if you're using apache's mod_php) is the one that will be used, and not all of the options will work with every installed PHP application. It doesn't make a ton of sense, but PHP is relatively stable these days. So, uh, good luck. > 2.if in the ebuild of dev-php/imagick-3.5.1 > USE_PHP="php7-3 php7-4 php8-0" > what does that mean? C-language extensions like pecl-imagick are compiled against PHP. The USE_PHP variable declares which versions they may be compiled against. Then the user-facing variable PHP_TARGETS says which ones you want. What you ultimately get is the intersection of USE_PHP and PHP_TARGETS.
