cmake HAVE_LIBGEN_H examples

LibreDWG/libredwg CMakeLists.txt :61 

CHECK_INCLUDE_FILE("libgen.h" HAVE_LIBGEN_H)

MiKTeX/miktex CMakeLists.txt :1390 

check_include_files(libgen.h HAVE_LIBGEN_H)

TheAssemblyArmada/Vanilla-Conquer tools/miniposix/CMakeLists.txt :5 

check_include_file(libgen.h HAVE_LIBGEN_H)

TheAssemblyArmada/Thyme deps/baseconfig/cmake/CheckFunctions.cmake :8 

check_include_file(libgen.h HAVE_LIBGEN_H)

tjko/jpegoptim CMakeLists.txt :251 

check_include_file(libgen.h HAVE_LIBGEN_H)

tjko/jpegoptim CMakeLists.txt :277 

target_compile_definitions(${PROJECT_NAME} PRIVATE
    $<$<BOOL:${HAVE_CONFIG_H}>:HAVE_CONFIG_H>
    $<$<BOOL:${HAVE_UNISTD_H}>:HAVE_UNISTD_H>
    $<$<BOOL:${HAVE_GETOPT_H}>:HAVE_GETOPT_H>
    $<$<BOOL:${HAVE_STRING_H}>:HAVE_STRING_H>
    $<$<BOOL:${HAVE_LIBGEN_H}>:HAVE_LIBGEN_H>
    $<$<BOOL:${HAVE_MATH_H}>:HAVE_MATH_H>
    $<$<BOOL:${HAVE_FCNTL_H}>:HAVE_FCNTL_H>
    $<$<BOOL:${HAVE_DIRENT_H}>:HAVE_DIRENT_H>
    $<$<BOOL:${HAVE_SYS_STAT_H}>:HAVE_SYS_STAT_H>
    $<$<BOOL:${HAVE_SYS_TYPES_H}>:HAVE_SYS_TYPES_H>
    $<$<BOOL:${HAVE_SYS_WAIT_H}>:HAVE_SYS_WAIT_H>
    $<$<BOOL:${HAVE_MKSTEMPS}>:HAVE_MKSTEMPS>
    $<$<BOOL:${HAVE_LABS}>:HAVE_LABS>
    $<$<BOOL:${HAVE_FILENO}>:HAVE_FILENO>
    $<$<BOOL:${HAVE_UTIMENSAT}>:HAVE_UTIMENSAT>
    $<$<BOOL:${HAVE_FORK}>:HAVE_FORK>
    $<$<BOOL:${HAVE_WAIT}>:HAVE_WAIT>
    $<$<BOOL:${HAVE_GETOPT}>:HAVE_GETOPT>
    $<$<BOOL:${HAVE_GETOPT_LONG}>:HAVE_GETOPT_LONG>
    $<$<BOOL:${HAVE_STRUCT_STAT_ST_MTIM}>:HAVE_STRUCT_STAT_ST_MTIM>
)