CMake: Set policy to silence warnings; make minimum versions consistent

Fixes: b/396442914 Change-Id: Icd468bb62fa9075a19a3ea685bad4e000526d068 Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/267793 Lint: Lint 🤖 <[email protected]> Commit-Queue: Auto-Submit <[email protected]> Presubmit-Verified: CQ Bot Account <[email protected]> Docs-Not-Needed: Wyatt Hepler <[email protected]> Reviewed-by: Kesavan Yogeswaran <[email protected]> Pigweed-Auto-Submit: Wyatt Hepler <[email protected]>
google · Feb 13, 2025 · d1c3488 · d1c3488
1 parent 04fb4db
commit d1c3488
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Showing 2 changed files with 3 additions and 3 deletions.
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -12,7 +12,7 @@
 # License for the specific language governing permissions and limitations under
 # the License.
 
-cmake_minimum_required(VERSION 3.16)
+cmake_minimum_required(VERSION 3.20)
 project(Pigweed)
 
 # Do not rely on the PW_ROOT environment variable being set through bootstrap.

diff --git a/pw_build/pigweed.cmake b/pw_build/pigweed.cmake
@@ -13,7 +13,7 @@
 # the License.
 include_guard(GLOBAL)
 
-cmake_minimum_required(VERSION 3.19)
+cmake_minimum_required(VERSION 3.20)
 
 # The PW_ROOT environment variable should be set in bootstrap. If it is not set,
 # set it to the root of the Pigweed repository.
@@ -51,7 +51,7 @@ include("$ENV{PW_ROOT}/pw_unit_test/test.cmake")
 #                        <multi_value_keywords>)
 #
 macro(pw_parse_arguments)
-  # First parse the arguments to this macro.
+  cmake_policy(SET CMP0174 NEW)  # Remove when CMake 3.31 or newer is required.
   cmake_parse_arguments(
     pw_parse_arg "" "NUM_POSITIONAL_ARGS"
     "OPTION_ARGS;ONE_VALUE_ARGS;MULTI_VALUE_ARGS;REQUIRED_ARGS"