Linker flag to be used to specify a .def file for dll creation.
The flag will be used to add a .def file when creating a dll on Windows; this is only defined on Windows.
© 2000–2020 Kitware, Inc. and Contributors
Licensed under the BSD 3-clause License.
https://cmake.org/cmake/help/v3.19/variable/CMAKE_LINK_DEF_FILE_FLAG.html