libusb-config accepts the following options:
LIBRARIES
This argument is currently ignored as libusb as only one library.
--version
Print the currently installed version of libusb on the standard output.
--libs Print the linker flags that are necessary to link a libusb program.
--cflags
Print the compiler flags that are necessary to compile a libusb program.
--prefix=PREFIX
If specified, use PREFIX instead of the installation prefix that libusb was built with when
computing the output for the --cflags and --libs options. This option is also used for the exec
prefix if --exec-prefix was not specified. This option must be specified before any --libs or
--cflags options.
--exec-prefix=PREFIX
If specified, use PREFIX instead of the installation exec prefix that libusb was built with when
computing the output for the --cflags and --libs options. This option must be specified before
any --libs or --cflags options.