Description:
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--enable-filter=shared should result in a "filter.so" extension, but at least with current 7.1.5 that don't work

looking at https://www.rpmfind.net/linux/rpm2html/search.php?query=php-filter(x86-64) this was possible with 5.6 and should be restored since i prefer *anything* as loadable extension instead duplicate binary code in /usr/bin/php and libphp7.so (and i would add pcre, libxml and even standard to my wishlist)

and NO i do not support the statement from https://bugs.php.net/bug.php?id=51957 "It can't and should not be build shared"

what would be that sepcial here compared to other extensions?

php-7.1.5-1.0.fc25.20170509.0015.rh.sandybridge.x86_64.rpm
php-bcmath-7.1.5-1.0.fc25.20170509.0015.rh.sandybridge.x86_64.rpm
php-bz2-7.1.5-1.0.fc25.20170509.0015.rh.sandybridge.x86_64.rpm
php-calendar-7.1.5-1.0.fc25.20170509.0015.rh.sandybridge.x86_64.rpm
php-cli-7.1.5-1.0.fc25.20170509.0015.rh.sandybridge.x86_64.rpm
php-common-7.1.5-1.0.fc25.20170509.0015.rh.sandybridge.x86_64.rpm
php-ctype-7.1.5-1.0.fc25.20170509.0015.rh.sandybridge.x86_64.rpm
php-curl-7.1.5-1.0.fc25.20170509.0015.rh.sandybridge.x86_64.rpm
php-devel-7.1.5-1.0.fc25.20170509.0015.rh.sandybridge.x86_64.rpm
php-dom-7.1.5-1.0.fc25.20170509.0015.rh.sandybridge.x86_64.rpm
php-exif-7.1.5-1.0.fc25.20170509.0015.rh.sandybridge.x86_64.rpm
php-fileinfo-7.1.5-1.0.fc25.20170509.0015.rh.sandybridge.x86_64.rpm
php-gd-7.1.5-1.0.fc25.20170509.0015.rh.sandybridge.x86_64.rpm
php-gettext-7.1.5-1.0.fc25.20170509.0015.rh.sandybridge.x86_64.rpm
php-hash-7.1.5-1.0.fc25.20170509.0015.rh.sandybridge.x86_64.rpm
php-iconv-7.1.5-1.0.fc25.20170509.0015.rh.sandybridge.x86_64.rpm
php-imap-7.1.5-1.0.fc25.20170509.0015.rh.sandybridge.x86_64.rpm
php-intl-7.1.5-1.0.fc25.20170509.0015.rh.sandybridge.x86_64.rpm
php-json-7.1.5-1.0.fc25.20170509.0015.rh.sandybridge.x86_64.rpm
php-mbstring-7.1.5-1.0.fc25.20170509.0015.rh.sandybridge.x86_64.rpm
php-mysqli-7.1.5-1.0.fc25.20170509.0015.rh.sandybridge.x86_64.rpm
php-opcache-7.1.5-1.0.fc25.20170509.0015.rh.sandybridge.x86_64.rpm
php-openssl-7.1.5-1.0.fc25.20170509.0015.rh.sandybridge.x86_64.rpm
php-pcntl-7.1.5-1.0.fc25.20170509.0015.rh.sandybridge.x86_64.rpm
php-pdo-7.1.5-1.0.fc25.20170509.0015.rh.sandybridge.x86_64.rpm
php-phar-7.1.5-1.0.fc25.20170509.0015.rh.sandybridge.x86_64.rpm
php-posix-7.1.5-1.0.fc25.20170509.0015.rh.sandybridge.x86_64.rpm
php-readline-7.1.5-1.0.fc25.20170509.0015.rh.sandybridge.x86_64.rpm
php-session-7.1.5-1.0.fc25.20170509.0015.rh.sandybridge.x86_64.rpm
php-simplexml-7.1.5-1.0.fc25.20170509.0015.rh.sandybridge.x86_64.rpm
php-soap-7.1.5-1.0.fc25.20170509.0015.rh.sandybridge.x86_64.rpm
php-sockets-7.1.5-1.0.fc25.20170509.0015.rh.sandybridge.x86_64.rpm
php-tidy-7.1.5-1.0.fc25.20170509.0015.rh.sandybridge.x86_64.rpm
php-tokenizer-7.1.5-1.0.fc25.20170509.0015.rh.sandybridge.x86_64.rpm
php-xml-7.1.5-1.0.fc25.20170509.0015.rh.sandybridge.x86_64.rpm
php-xmlreader-7.1.5-1.0.fc25.20170509.0015.rh.sandybridge.x86_64.rpm
php-xmlwriter-7.1.5-1.0.fc25.20170509.0015.rh.sandybridge.x86_64.rpm
php-zip-7.1.5-1.0.fc25.20170509.0015.rh.sandybridge.x86_64.rpm
php-zlib-7.1.5-1.0.fc25.20170509.0015.rh.sandybridge.x86_64.rpm