chore: Cmake updates for FindBoost policies.

Author: kinyoklion

CMakeLists.txt

@@ -21,6 +21,14 @@ if (POLICY CMP0144)
     cmake_policy(SET CMP0144 NEW)
 endif ()
 
+# This policy is designed to force a choice between the old behavior of an integrated FindBoost implementation
+# and the implementation provided in by boost.
+if(POLICY CMP0167)
+    # Uses the BoostConfig.cmake included with the boost distribution.
+    cmake_policy(SET CMP0167 NEW)
+endif()
+
+
 option(BUILD_TESTING "Top-level switch for testing. Turn off to disable unit and contract tests." ON)
 
 option(LD_BUILD_SHARED_LIBS "Build the SDKs as shared libraries" OFF)

cmake/launchdarklyConfig.cmake

@@ -8,6 +8,13 @@ if (NOT DEFINED Boost_USE_STATIC_LIBS)
     endif ()
 endif ()
 
+# This policy is designed to force a choice between the old behavior of an integrated FindBoost implementation
+# and the implementation provided in by boost.
+if(POLICY CMP0167)
+    # Uses the BoostConfig.cmake included with the boost distribution.
+    cmake_policy(SET CMP0167 NEW)
+endif()
+
 find_dependency(Boost 1.81 COMPONENTS json url coroutine)
 find_dependency(OpenSSL)
 find_dependency(tl-expected)

cmake/rfc3339_timestamp.cmake

@@ -5,7 +5,7 @@ FetchContent_Declare(timestamp
 
 FetchContent_GetProperties(timestamp)
 if (NOT timestamp_POPULATED)
-    FetchContent_Populate(timestamp)
+    FetchContent_MakeAvailable(timestamp)
 endif ()
 
 add_library(timestamp OBJECT

vendor/foxy/CMakeLists.txt

@@ -11,6 +11,13 @@ cmake_minimum_required(VERSION 3.13)
 
 set(foxy_minimum_boost_version 1.75)
 
+# This policy is designed to force a choice between the old behavior of an integrated FindBoost implementation
+# and the implementation provided in by boost.
+if(POLICY CMP0167)
+    # Uses the BoostConfig.cmake included with the boost distribution.
+    cmake_policy(SET CMP0167 NEW)
+endif()
+
 project(
         foxy