cmake HAVE_DLSYM_WITH_DL examples

alibaba/AliSQL storage/tokudb/ft-index/cmake_modules/TokuFeatureDetection.cmake :81 

check_function_exists(dlsym HAVE_DLSYM_WITH_DL)

percona/PerconaFT cmake_modules/TokuFeatureDetection.cmake :82 

check_function_exists(dlsym HAVE_DLSYM_WITH_DL)

oscarlab/betrfs cmake_modules/TokuFeatureDetection.cmake :86 

check_function_exists(dlsym HAVE_DLSYM_WITH_DL)