cmake HAVE__FILENO examples

NauEngine/NauEditorPublic editor/external/libzipconfig/CMakeLists.txt :98 

check_function_exists(_fileno HAVE__FILENO)

nih-at/libzip CMakeLists.txt :105 

check_function_exists(_fileno HAVE__FILENO)

GenericMappingTools/gmt cmake/modules/ConfigureChecks.cmake :203 

check_symbol_exists (_fileno   stdio.h  HAVE__FILENO)

librsync/librsync CMakeLists.txt :99 

check_function_exists ( _fileno HAVE__FILENO )

flyinghead/flycast core/deps/libzip/CMakeLists.txt :98 

check_function_exists(_fileno HAVE__FILENO)