diff --git a/CMakeLists.txt b/CMakeLists.txt
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -162,25 +162,13 @@ else()
 endif()
 
 # get revision number from mercurial
-find_program(MERCURIAL hg)
-
-if (MERCURIAL)
-  execute_process(COMMAND ${MERCURIAL} id -i
-    WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
-    RESULT_VARIABLE MERCURIAL_RESULT
-    OUTPUT_VARIABLE VERSION_REVISION
-    OUTPUT_STRIP_TRAILING_WHITESPACE)
-  if(NOT MERCURIAL_RESULT EQUAL 0)
-    set(VERSION_SCM_REVISION false)
-  endif(NOT MERCURIAL_RESULT EQUAL 0)
-endif (MERCURIAL)
-
-if (NOT VERSION_REVISION)
-  set(VERSION_REVISION "0")
-endif (NOT VERSION_REVISION)
-
-message("SCM revision: ${VERSION_REVISION}")
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DVERSION_REVISION=\\\"${VERSION_REVISION}\\\" ")
+include(GetVersion)
+if (NOT ${HG_VERSION} STREQUAL "")
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DVERSION_STRING=\\\"${HG_VERSION}\\\" ")
+endif()
+if (NOT ${HG_REVISION} STREQUAL "")
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DVERSION_REVISION=\\\"${HG_REVISION}\\\" ")
+endif()
 
 # add make run target
 add_custom_target(run