php7-dev.tcz
   libxml2-dev.tcz
      libxml2.tcz
         liblzma.tcz
      liblzma-dev.tcz
         liblzma.tcz
   pcre2-dev.tcz
      pcre2.tcz
      bzip2-dev.tcz
         bzip2.tcz
            bzip2-lib.tcz
      readline-dev.tcz
         readline.tcz
            ncursesw.tcz
         ncursesw-dev.tcz
            ncursesw.tcz
   readline.tcz
      ncursesw.tcz
   php7-ext.tcz