PHP 7.3:

PHP-7.3  𝑷 7.3.6-dev AU DN⁶⁴ 𝑿 3.0.0-dev                                 
derick@singlemalt:~/dev/php/php-src.git$ ./configure --help | grep hash         
  --with-mhash=DIR        Include mhash support                                 
  --disable-hash          Disable hash support                                  


yes, I know this one is boring