Because our usbhid(3) defines hid_init(3), the libhidapi's one has been renamed to hidapi_hid_init(). Sigrok expects the libhidapi one. This led to build failures on ld.bfd arches, and probably runtime errors on other arches. As such, redefine the hid_init() call to hidapi_hid_init(). OK sthen@, kmos@ (who build tested on sparc64) and "seems ok to me" bentley@ (maintainer)