Vitruvius

``` ENV CFLAGS="-Wno-error=incompatible-pointer-types" RUN pecl channel-update pecl.php.net RUN pecl install phalcon-5.8.0 RUN docker-php-ext-enable phalcon RUN pecl clear-cache ``` In my case, Ι set ```CFLAGS="-Wno-error=incompatible-pointer-types"``` to environment before installing with pecl....