hackrf_open() failed: HACKRF_ERROR_LIBUSB (-1000)

[AlmightyOatmeal]

Seems there is a dependency problem that isn't mentioned?

$ make
make: Circular hackrf_tcp.o <- hackrf_tcp.o dependency dropped.
cc -Wall -g -ggdb -c -o hackrf_tcp.o hackrf_tcp.c
cc hackrf_tcp.o -Wall -g -ggdb -lhackrf -o hackrf_tcp

$ ./hackrf_tcp
hackrf_open() failed: HACKRF_ERROR_LIBUSB (-1000)

$ sw_vers
ProductName:	Mac OS X
ProductVersion:	10.12.2
BuildVersion:	16C63a