cmake HAVE_FILESYSTEM_NEEDING_LIBCXXFS examples

scp-fs2open/fs2open.github.com lib/openxr/src/CMakeLists.txt :128 

cmake_dependent_option(
    BUILD_WITH_STD_FILESYSTEM "Use std::[experimental::]filesystem." ON
    "HAVE_FILESYSTEM_WITHOUT_LIB OR HAVE_FILESYSTEM_NEEDING_LIBSTDCXXFS OR HAVE_FILESYSTEM_NEEDING_LIBCXXFS"
    OFF
)

scp-fs2open/fs2open.github.com lib/openxr/src/cmake/StdFilesystemFlags.cmake :154 

check_cxx_source_compiles("${_stdfs_needlib_source}" HAVE_FILESYSTEM_NEEDING_LIBCXXFS)

scp-fs2open/fs2open.github.com lib/openxr/src/cmake/StdFilesystemFlags.cmake :178 

elseif(HAVE_FILESYSTEM_NEEDING_LIBCXXFS)

RavEngine/RavEngine deps/OpenXR-SDK/src/CMakeLists.txt :128 

cmake_dependent_option(
    BUILD_WITH_STD_FILESYSTEM "Use std::[experimental::]filesystem." ON
    "HAVE_FILESYSTEM_WITHOUT_LIB OR HAVE_FILESYSTEM_NEEDING_LIBSTDCXXFS OR HAVE_FILESYSTEM_NEEDING_LIBCXXFS"
    OFF
)

RavEngine/RavEngine deps/OpenXR-SDK/src/cmake/StdFilesystemFlags.cmake :154 

check_cxx_source_compiles("${_stdfs_needlib_source}" HAVE_FILESYSTEM_NEEDING_LIBCXXFS)

RavEngine/RavEngine deps/OpenXR-SDK/src/cmake/StdFilesystemFlags.cmake :178 

elseif(HAVE_FILESYSTEM_NEEDING_LIBCXXFS)

rbfx/rbfx Source/ThirdParty/OpenXRSDK/src/CMakeLists.txt :129 

cmake_dependent_option(
    BUILD_WITH_STD_FILESYSTEM "Use std::[experimental::]filesystem." ON
    "HAVE_FILESYSTEM_WITHOUT_LIB OR HAVE_FILESYSTEM_NEEDING_LIBSTDCXXFS OR HAVE_FILESYSTEM_NEEDING_LIBCXXFS"
    OFF
)

rbfx/rbfx Source/ThirdParty/OpenXRSDK/src/cmake/StdFilesystemFlags.cmake :154 

check_cxx_source_compiles("${_stdfs_needlib_source}" HAVE_FILESYSTEM_NEEDING_LIBCXXFS)

rbfx/rbfx Source/ThirdParty/OpenXRSDK/src/cmake/StdFilesystemFlags.cmake :178 

elseif(HAVE_FILESYSTEM_NEEDING_LIBCXXFS)