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use-linker-depfile
------------------
* GNU (and GNU-compatible) linkers gained support for a ``--dependency-file``
flag in GNU Binutils 2.35 and LLVM's LLD 12.0.0. The
:ref:`Makefile <Makefile Generators>` and :ref:`Ninja <Ninja Generators>`
generators will now add these flags so that files read by the linker will
cause a relink if they change (typically modified timestamps).
This feature can be controlled by the variable
:variable:`CMAKE_LINK_DEPENDS_USE_LINKER`.
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