chore: Cmake updates for FindBoost policies.

.github/actions/install-boost/action.yml

@@ -14,6 +14,9 @@ outputs:
   BOOST_ROOT:
     description: The location of the installed boost.
     value: ${{ steps.determine-root.outputs.BOOST_ROOT }}
+  Boost_DIR:
+    description: Location of cmake support for boost.
+    value: ${{ steps.boost-download.outputs.Boost_DIR }}
 runs:
   using: composite
   steps:
@@ -33,6 +36,7 @@ runs:
       run: |
         choco install boost-msvc-14.3 --version 1.87.0 -y --no-progress
         echo "BOOST_ROOT=C:\local\boost_1_87_0" >> $GITHUB_OUTPUT
+        echo "Boost_DIR=C:\local\boost_1_87_0\lib64-msvc-14.3\cmake\Boost-1.87.0" >> $GITHUB_OUTPUT
 
     - name: Install boost using homebrew
       id: brew-action

.github/actions/install-openssl/action.yml

@@ -32,7 +32,7 @@ runs:
       if: runner.os == 'Windows'
       shell: bash
       run: |
-        choco install openssl --version 3.5.3 -y --no-progress
+        choco install openssl --version 3.5.4 -y --no-progress
         if [ -d "C:\Program Files\OpenSSL-Win64" ]; then
           echo "OPENSSL_ROOT_DIR=C:\Program Files\OpenSSL-Win64" >> $GITHUB_OUTPUT
         else

.github/actions/sdk-release/action.yml

@@ -100,6 +100,7 @@ runs:
       if: runner.os == 'Windows'
       shell: bash
       env:
+        Boost_DIR: ${{ steps.install-boost.outputs.Boost_DIR }}
         BOOST_ROOT: ${{ steps.install-boost.outputs.BOOST_ROOT }}
         OPENSSL_ROOT_DIR: ${{ steps.install-openssl.outputs.OPENSSL_ROOT_DIR }}
       run: ./scripts/build-release-windows.sh ${{ inputs.sdk_cmake_target }}

.github/workflows/hello-apps.yml

@@ -34,7 +34,8 @@ jobs:
         run: ./scripts/run-hello-apps.sh static hello-c-client hello-cpp-client hello-c-server hello-cpp-server
         env:
           BOOST_ROOT: ${{ steps.install-boost.outputs.BOOST_ROOT }}
-          OPENSSL_ROOT_DIR: ${{ steps.install-openssl.outputs.OPENSSL_ROOT_DIR }}
+          Boost_DIR: ${{ steps.install-boost.outputs.Boost_DIR }}
+
       - name: Dynamically Linked Hello Apps (C API only)
         shell: bash
         continue-on-error: true # TODO(SC-223804)

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

scripts/run-hello-apps.sh

@@ -40,6 +40,9 @@ cd build-"$1" || exit
 # script ends.
 trap cleanup EXIT
 
+echo Boost dir $Boost_DIR
+echo Boost root $BOOST_ROOT
+
 cmake -G Ninja -D CMAKE_BUILD_TYPE=Release \
                -D BUILD_TESTING=OFF  \
                -D LD_BUILD_SHARED_LIBS=$dynamic_linkage \

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
 
@@ -30,7 +37,6 @@ include(${CMAKE_FILES}/certify.cmake)
 find_package(
         Boost ${foxy_minimum_boost_version}
         REQUIRED
-        system
         date_time
 )
 
@@ -148,7 +154,6 @@ target_link_libraries(
 
         PUBLIC
         Boost::boost
-        Boost::system
         Boost::date_time
         OpenSSL::SSL
         Threads::Threads

vendor/foxy/cmake/certify.cmake

@@ -10,7 +10,7 @@ endif ()
 
 FetchContent_Declare(certify
         GIT_REPOSITORY https://github.com/launchdarkly/certify.git
-        GIT_TAG 7116dd0e609ae44d037aa562736d3d59fce1b637
+        GIT_TAG 71023298ae232ee01cc7c4c80ea19b7b12bfeb19
 )
 
 # The tests in certify don't compile.