diff --git a/modules/ECMSourceVersionControl.cmake b/modules/ECMSourceVersionControl.cmake
--- a/modules/ECMSourceVersionControl.cmake
+++ b/modules/ECMSourceVersionControl.cmake
@@ -12,6 +12,7 @@
 
 #=============================================================================
 # Copyright 2019 Harald Sitter <sitter@kde.org>
+# Copyright 2019 Thomas Fischer <fischer@unix-ag.uni-kl.de>
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions
@@ -36,11 +37,107 @@
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-if(EXISTS "${CMAKE_SOURCE_DIR}/.git" OR
-   EXISTS "${CMAKE_SOURCE_DIR}/.svn" OR
-   EXISTS "${CMAKE_SOURCE_DIR}/.hg" OR
-   EXISTS "${CMAKE_SOURCE_DIR}/.bzr")
+if(EXISTS "${CMAKE_SOURCE_DIR}/.git")
+    # Git
     set(ECM_SOURCE_UNDER_VERSION_CONTROL TRUE)
+    set(ECM_SOURCE_VERSION_CONTROL_WHICH "git")
+elseif(EXISTS "${CMAKE_SOURCE_DIR}/.svn")
+    # Subversion
+    set(ECM_SOURCE_UNDER_VERSION_CONTROL TRUE)
+    set(ECM_SOURCE_VERSION_CONTROL_WHICH "svn")
+elseif(EXISTS "${CMAKE_SOURCE_DIR}/.hg")
+    # Mercurial
+    set(ECM_SOURCE_UNDER_VERSION_CONTROL TRUE)
+    set(ECM_SOURCE_VERSION_CONTROL_WHICH "hg")
+elseif(EXISTS "${CMAKE_SOURCE_DIR}/.bzr")
+    # Bazaar
+    set(ECM_SOURCE_UNDER_VERSION_CONTROL TRUE)
+    set(ECM_SOURCE_VERSION_CONTROL_WHICH "bzr")
 else()
+    unset(ECM_SOURCE_VERSION_CONTROL_WHICH)
     set(ECM_SOURCE_UNDER_VERSION_CONTROL FALSE)
 endif()
+
+set(_ECM_SOURCE_VERSION_CONTROL_ALREADY_WARNED_NOT_VCS FALSE)
+set(_ECM_SOURCE_VERSION_CONTROL_ALREADY_WARNED_MISSING_GIT_EXEC FALSE)
+
+function(ecm_source_version_control_probe_revison)
+    if(ECM_SOURCE_VERSION_CONTROL_REVISION)
+        return()
+    endif()
+    if(NOT ${ECM_SOURCE_UNDER_VERSION_CONTROL})
+        if(NOT ${_ECM_SOURCE_VERSION_CONTROL_ALREADY_WARNED_NOT_VCS})
+            message("Source directory not managed by a supported version control system (Git)")
+            set(_ECM_SOURCE_VERSION_CONTROL_ALREADY_WARNED_NOT_VCS TRUE PARENT_SCOPE)
+        endif()
+    elseif(${ECM_SOURCE_VERSION_CONTROL_WHICH} STREQUAL "git")
+        # Git
+        if(NOT _ECM_SOURCE_VERSION_GIT_EXECUTABLE)
+            find_program(_ECM_SOURCE_VERSION_GIT_EXECUTABLE
+                NAMES git.bat git # for Windows, 'git.bat' must be found before 'git'
+            )
+        endif()
+        if(_ECM_SOURCE_VERSION_GIT_EXECUTABLE)
+            execute_process(
+                WORKING_DIRECTORY "${CMAKE_SOURCE_DIR}"
+                COMMAND "${_ECM_SOURCE_VERSION_GIT_EXECUTABLE}" rev-parse --short HEAD
+                OUTPUT_VARIABLE ECM_SOURCE_VERSION_CONTROL_REVISION
+                OUTPUT_STRIP_TRAILING_WHITESPACE
+            )
+            set(ECM_SOURCE_VERSION_CONTROL_REVISION "${ECM_SOURCE_VERSION_CONTROL_REVISION}" PARENT_SCOPE)
+        else()
+            if(NOT ${_ECM_SOURCE_VERSION_CONTROL_ALREADY_WARNED_MISSING_GIT_EXEC})
+                message(WARNING "No Git executable found despite .git directory located in source directory")
+                set(_ECM_SOURCE_VERSION_CONTROL_ALREADY_WARNED_MISSING_GIT_EXEC TRUE PARENT_SCOPE)
+            endif()
+        endif()
+    else()
+        message(WARNING "Cannot retrieve revision for version control system '${ECM_SOURCE_VERSION_CONTROL_WHICH}'")
+    endif()
+endfunction()
+
+function(ecm_source_version_control_probe_branch)
+    if(ECM_SOURCE_VERSION_CONTROL_BRANCH)
+        return()
+    endif()
+    if(NOT ${ECM_SOURCE_UNDER_VERSION_CONTROL})
+        if(NOT ${_ECM_SOURCE_VERSION_CONTROL_ALREADY_WARNED_NOT_VCS})
+            message("Source directory not managed by a supported version control system (Git)")
+            set(_ECM_SOURCE_VERSION_CONTROL_ALREADY_WARNED_NOT_VCS TRUE PARENT_SCOPE)
+        endif()
+    elseif(${ECM_SOURCE_VERSION_CONTROL_WHICH} STREQUAL "git")
+        # Git
+        if(NOT _ECM_SOURCE_VERSION_GIT_EXECUTABLE)
+            find_program(_ECM_SOURCE_VERSION_GIT_EXECUTABLE
+                NAMES git.bat git # for Windows, 'git.bat' must be found before 'git'
+            )
+        endif()
+        if(_ECM_SOURCE_VERSION_GIT_EXECUTABLE)
+            execute_process(
+                WORKING_DIRECTORY "${CMAKE_SOURCE_DIR}"
+                COMMAND "${_ECM_SOURCE_VERSION_GIT_EXECUTABLE}" rev-parse --abbrev-ref HEAD
+                OUTPUT_VARIABLE ECM_SOURCE_VERSION_CONTROL_BRANCH
+                OUTPUT_STRIP_TRAILING_WHITESPACE
+            )
+            set(ECM_SOURCE_VERSION_CONTROL_BRANCH "${ECM_SOURCE_VERSION_CONTROL_BRANCH}" PARENT_SCOPE)
+        else()
+            if(NOT ${_ECM_SOURCE_VERSION_CONTROL_ALREADY_WARNED_MISSING_GIT_EXEC})
+                message(WARNING "No Git executable found despite .git directory located in source directory")
+                set(_ECM_SOURCE_VERSION_CONTROL_ALREADY_WARNED_MISSING_GIT_EXEC TRUE PARENT_SCOPE)
+            endif()
+        endif()
+    else()
+        message(WARNING "Cannot retrieve branch for version control system '${ECM_SOURCE_VERSION_CONTROL_WHICH}'")
+    endif()
+endfunction()
+
+function(ecm_source_version_control_status)
+    if(${ECM_SOURCE_UNDER_VERSION_CONTROL} AND "${ECM_SOURCE_VERSION_CONTROL_WHICH}" STREQUAL "git")
+        message(STATUS "Source directory '${CMAKE_SOURCE_DIR}' is under version control by Git.")
+        ecm_source_version_control_probe_revison()
+        ecm_source_version_control_probe_branch()
+        if(ECM_SOURCE_VERSION_CONTROL_BRANCH AND ECM_SOURCE_VERSION_CONTROL_BRANCH)
+            message(STATUS "The current Git checkout is branch '${ECM_SOURCE_VERSION_CONTROL_BRANCH}' at commit ${ECM_SOURCE_VERSION_CONTROL_REVISION}.")
+        endif()
+    endif()
+endfunction()