MusicBox 0.5.1 Shairport behaviour strange?

Hey!
Can you tell me how you updated shairport in detail? im a newbie and for example the autoreconf -i -f doesnt work. it says:

Can’t exec “aclocal”: No such file or directory at /usr/share/autoconf/Autom4te/FileUtils.pm line 326.
autoreconf: failed to run aclocal: No such file or directory

Thank you in advance