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-rw-r--r--Modules/FetchContent.cmake7
1 files changed, 4 insertions, 3 deletions
diff --git a/Modules/FetchContent.cmake b/Modules/FetchContent.cmake
index d016fb5aed..9747cd9559 100644
--- a/Modules/FetchContent.cmake
+++ b/Modules/FetchContent.cmake
@@ -881,9 +881,10 @@ Overriding Where To Find CMakeLists.txt
If the sub-project's ``CMakeLists.txt`` file is not at the top level of its
source tree, the ``SOURCE_SUBDIR`` option can be used to tell ``FetchContent``
-where to find it. The following example shows how to use that option and
+where to find it. The following example shows how to use that option, and
it also sets a variable which is meaningful to the subproject before pulling
-it into the main build:
+it into the main build (set as an ``INTERNAL`` cache variable to avoid
+problems with policy :policy:`CMP0077`):
.. code-block:: cmake
@@ -894,7 +895,7 @@ it into the main build:
GIT_TAG ae50d9b9902526efd6c7a1907d09739f959c6297 # v3.15.0
SOURCE_SUBDIR cmake
)
- set(protobuf_BUILD_TESTS OFF)
+ set(protobuf_BUILD_TESTS OFF CACHE INTERNAL "")
FetchContent_MakeAvailable(protobuf)
Complex Dependency Hierarchies