[Buildroot] [PATCH v2] bandwidthd: incorporate fixes for autobuilders

[Romain Naour]

Hi Nathaniel,

> 
> I think bandwithd depends on BR2_TOOLCHAIN_HAS_THREADS due to a reverse
> dependency on libusb.
> 
Please forget that. libusb is an optional dependency of libpcap.

I have disabled libusb and now the build error out:

checking for libusb_init in -lusb-1.0... no
configure: error:

libusb and libpthread need to be handled as optional dependencies in bandwidthd.

-pthread need to be added only if the libusb (which depends on
BR2_TOOLCHAIN_HAS_THREADS) is detected

So add BANDWIDTHD_CONF_ENV = LIBS="-pthread" in bandwidthd.mk is not a good idea...

Best regards,
Romain