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diff --git a/share/cmake-3.18/Modules/FindPatch.cmake b/share/cmake-3.18/Modules/FindPatch.cmake
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+# Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+# file Copyright.txt or https://cmake.org/licensing for details.
+
+#[=======================================================================[.rst:
+FindPatch
+---------
+
+The module defines the following variables:
+
+``Patch_EXECUTABLE``
+  Path to patch command-line executable.
+``Patch_FOUND``
+  True if the patch command-line executable was found.
+
+The following :prop_tgt:`IMPORTED` targets are also defined:
+
+``Patch::patch``
+  The command-line executable.
+
+Example usage:
+
+.. code-block:: cmake
+
+   find_package(Patch)
+   if(Patch_FOUND)
+     message("Patch found: ${Patch_EXECUTABLE}")
+   endif()
+#]=======================================================================]
+
+set(_doc "Patch command line executable")
+set(_patch_path )
+
+if(CMAKE_HOST_WIN32)
+  set(_patch_path
+    "$ENV{LOCALAPPDATA}/Programs/Git/bin"
+    "$ENV{LOCALAPPDATA}/Programs/Git/usr/bin"
+    "$ENV{APPDATA}/Programs/Git/bin"
+    "$ENV{APPDATA}/Programs/Git/usr/bin"
+    )
+endif()
+
+# First search the PATH
+find_program(Patch_EXECUTABLE
+  NAME patch
+  PATHS ${_patch_path}
+  DOC ${_doc}
+  )
+
+if(CMAKE_HOST_WIN32)
+  # Now look for installations in Git/ directories under typical installation
+  # prefixes on Windows.
+  find_program(Patch_EXECUTABLE
+    NAMES patch
+    PATH_SUFFIXES Git/usr/bin Git/bin GnuWin32/bin
+    DOC ${_doc}
+    )
+endif()
+
+if(Patch_EXECUTABLE AND NOT TARGET Patch::patch)
+  add_executable(Patch::patch IMPORTED)
+  set_property(TARGET Patch::patch PROPERTY IMPORTED_LOCATION ${Patch_EXECUTABLE})
+endif()
+
+unset(_patch_path)
+unset(_doc)
+
+include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
+find_package_handle_standard_args(Patch
+                                  REQUIRED_VARS Patch_EXECUTABLE)