Note: The OS X installations above place exiftool and its "lib" directory in /usr/bin, while the standard Unix "make install" described below puts exiftool in /usr/bin and the individual libraries in /Library/Perl/#.#.#, where "#.#.#" is the Perl version. If both sets of libraries exist, /usr/bin/lib takes precedence for exiftool, but /Library/Perl/#.## is the default for any other Perl scripts.