diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5f3bc6603..92040267e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -411,27 +411,8 @@ endif()
 # The main section of the CMakeLists file
 #
 #-----------------------------------------------------------------------
-include(Source/CMakeVersion.cmake)
-# Releases define a small tweak level.
-if("${CMake_VERSION_TWEAK}" VERSION_LESS 20000000)
-  set(CMake_VERSION_IS_RELEASE 1)
-  set(CMake_VERSION_SOURCE "")
-else()
-  set(CMake_VERSION_IS_RELEASE 0)
-  include(${CMake_SOURCE_DIR}/Source/CMakeVersionSource.cmake)
-endif()
-
-# Compute the full version string.
-set(CMake_VERSION ${CMake_VERSION_MAJOR}.${CMake_VERSION_MINOR}.${CMake_VERSION_PATCH})
-if(${CMake_VERSION_TWEAK} GREATER 0)
-  set(CMake_VERSION ${CMake_VERSION}.${CMake_VERSION_TWEAK})
-endif()
-if(CMake_VERSION_RC)
-  set(CMake_VERSION ${CMake_VERSION}-rc${CMake_VERSION_RC})
-endif()
-if(CMake_VERSION_SOURCE)
-  set(CMake_VERSION ${CMake_VERSION}-${CMake_VERSION_SOURCE})
-endif()
+# Compute CMake_VERSION, etc.
+include(Source/CMakeVersionCompute.cmake)
 
 # Include the standard Dart testing module
 enable_testing()
diff --git a/Source/CMakeVersionCompute.cmake b/Source/CMakeVersionCompute.cmake
new file mode 100644
index 000000000..a1663342e
--- /dev/null
+++ b/Source/CMakeVersionCompute.cmake
@@ -0,0 +1,23 @@
+# Load version number components.
+include(${CMake_SOURCE_DIR}/Source/CMakeVersion.cmake)
+
+# Releases define a small tweak level.
+if("${CMake_VERSION_TWEAK}" VERSION_LESS 20000000)
+  set(CMake_VERSION_IS_RELEASE 1)
+  set(CMake_VERSION_SOURCE "")
+else()
+  set(CMake_VERSION_IS_RELEASE 0)
+  include(${CMake_SOURCE_DIR}/Source/CMakeVersionSource.cmake)
+endif()
+
+# Compute the full version string.
+set(CMake_VERSION ${CMake_VERSION_MAJOR}.${CMake_VERSION_MINOR}.${CMake_VERSION_PATCH})
+if(${CMake_VERSION_TWEAK} GREATER 0)
+  set(CMake_VERSION ${CMake_VERSION}.${CMake_VERSION_TWEAK})
+endif()
+if(CMake_VERSION_RC)
+  set(CMake_VERSION ${CMake_VERSION}-rc${CMake_VERSION_RC})
+endif()
+if(CMake_VERSION_SOURCE)
+  set(CMake_VERSION ${CMake_VERSION}-${CMake_VERSION_SOURCE})
+endif()