cmake span-lite examples

ladnir/cryptoTools cmake/cryptoToolsDepHelper.cmake :185 

find_package(span-lite ${ARGS})

heal-research/operon CMakeLists.txt :100 

find_package(span-lite REQUIRED)

arrayfire/arrayfire CMakeLists.txt :82 

find_package(span-lite QUIET)

ned14/quickcpplib CMakeLists.txt :88 

find_package(span-lite REQUIRED)