I think you are correct, because this:

Note (probably harmless): No library found for -lusb

[download]

indicates that libusb was not found at all.

In reply to Re^3: Problem make'ing Device::USB on osx Snow Leopard 10.6.2 by Corion
in thread Problem make'ing Device::USB on osx Snow Leopard 10.6.2 by nick.fox

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