Code review comment for lp:~lazyranma/ubuntu/wily/libusb/bug-1455924

Legacy libusb is deprecated and not updated since 2006-03-04, upstream recommends to migrate to libusb-compat-0.1 http://www.libusb.org/wiki/libusb-compat-0.1 (LP: #991004). I've already reported this bug to Debian (https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=785578).
Debian uses the same version of the package (https://tracker.debian.org/pkg/libusb). The linux.c you are talking about is probably from the .pc directory, which is quilt's working directory.