2

Running

$ brew doctor

gives me:

Unexpected dylibs:
/usr/local/lib/libusb-1.0.0.dylib

According to this Linking libusb in Mac OS X I should run brew upgrade libusb however when doing so I get: 

$ brew upgrade libusb
Error: No such file or directory - /usr/local/Cellar/libusb

Any suggestions how I upgrade? Or, simpler, to uninstall if it's not necessary. What's it used for?

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Snowcrash
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    Do you _need_ `libusb`? If you just want to fix the `Unexpected dylibs` warning you can just remove the file. If you want to _install_ `libusb` run `brew install libusb`. – bfontaine Nov 09 '15 at 12:53

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