Package libusb-1.0 was not found in the pkg-config search path.Perhaps you should add the directory containing `libusb-1.0.pc'to the PKG_CONFIG_PATH environment variable code example
Example: Package opencv was not found in the pkg-config search path. Perhaps you should add the directory containing `opencv.pc' to the PKG_CONFIG_PATH environment variable
export PKG_CONFIG_PATH=/usr/lib/pkgconfig:/usr/lib/arm-linux-gnueabi/pkgconfig