cmake Gperf examples

apache/kudu CMakeLists.txt :1204 

find_package(GPerf REQUIRED)

qt/qtwebkit Source/cmake/WebKitCommon.cmake :22 

find_package(Gperf 3.0.1 REQUIRED)

yugabyte/yugabyte-db cmake_modules/YugabyteFindThirdParty.cmake :255 

find_package(GPerf REQUIRED)