Updated cmake minimum required to 3.5-4.0

Author: redboltz

.github/workflows/coverage.yml

@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v3
     - name: install depends
       run: |
         sudo apt-get update

.github/workflows/gha.yml

@@ -17,7 +17,7 @@ jobs:
       matrix:
         pattern: [0, 1, 2, 3]
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v3
     - name: install gtest
       run: |
         brew install --force googletest
@@ -173,10 +173,10 @@ jobs:
       matrix:
         pattern: [0, 1, 2, 3]
     steps:
-    - uses: actions/checkout@v2.0.0
+    - uses: actions/checkout@v3
     - name: Cache vcpkg
       id: cache-vcpkg
-      uses: actions/cache@v1.1.2
+      uses: actions/cache@v3
       with:
         path: C:/vcpkg/installed
         key: windows-2019-vcpkg-v2

CMakeLists.txt

@@ -1,17 +1,4 @@
-if(${CMAKE_VERSION} VERSION_GREATER "3.4")
-    CMAKE_MINIMUM_REQUIRED (VERSION 3.5)
-else()
-    CMAKE_MINIMUM_REQUIRED (VERSION 2.8.12)
-    IF ((CMAKE_VERSION VERSION_GREATER 3.1) OR
-        (CMAKE_VERSION VERSION_EQUAL 3.1))
-        CMAKE_POLICY(SET CMP0054 NEW)
-    ENDIF ()
-endif()
-
-IF ((CMAKE_VERSION VERSION_GREATER 3.27) OR
-    (CMAKE_VERSION VERSION_EQUAL 3.27))
-    CMAKE_POLICY(SET CMP0145 OLD)
-ENDIF ()
+CMAKE_MINIMUM_REQUIRED (VERSION 3.5...4.0)
 
 OPTION (MSGPACK_BUILD_TESTS "Build msgpack tests." OFF)
 OPTION (MSGPACK_GEN_COVERAGE "Enable running gcov to get a test coverage report." OFF)
@@ -200,11 +187,11 @@ ENDIF ()
 
 IF (MSGPACK_BUILD_TESTS)
     ENABLE_TESTING ()
+    INCLUDE(CTest)
     list(APPEND CMAKE_CTEST_ARGUMENTS "--output-on-failure")
     # MEMORYCHECK_COMMAND_OPTIONS needs to place prior to CTEST_MEMORYCHECK_COMMAND
     SET (MEMORYCHECK_COMMAND_OPTIONS "--leak-check=full --show-leak-kinds=definite,possible --error-exitcode=1")
     FIND_PROGRAM(CTEST_MEMORYCHECK_COMMAND NAMES valgrind)
-    INCLUDE(Dart)
     ADD_SUBDIRECTORY (test)
 ENDIF ()