cmake Libudev examples

aidanmcb1/Citra externals/libusb/CMakeLists.txt :76 

find_package(Libudev)

Tinob/Ishiiruka CMakeLists.txt :494 

find_package(Libudev REQUIRED)

JoseExposito/touchegg CMakeLists.txt :19 

find_package(LIBUDEV REQUIRED)