This build creates two main packages -one containing the full installation of texinfo with all the utilities and the 'info' program for reading info pages. The second package contains just the 'install-info' program which is used to add entries for installed 'info' files to the info-dir file which is a database with a table of contents for all installed info files. This package goes into the 'a' series of packages is named aaa_install-info so that it gets installed just after the aaa_base package, so that any packages which follow will have their 'info' pages properly installed. If you want to display 'info' pages using some other reader besides the 'info' program, then you can install just the install-info package. But, if you compile and install software on your system, you'll probably want or need the full 'texinfo' package as it contains other utilities which are used to generate and convert 'info' files for the compiled software.