Problem building apcupsd

[Iain Hibbert <plunky%ogmig.net@localhost>]

Hi

> And lots of other usb_xxx functions undefined. libusb-compat-0.1.7 is 
> installed and manually extracting the package seems to show that these 
> functions are exported from the library.

> Last build I did a week ago of this config worked.

Sorry, that was my fault. I have reverted my commit to 
libusb1/buildlink3.mk which caused this so should be working again.

iain