diff --git a/cmake/scripts/FindVersion.cmake b/cmake/scripts/FindVersion.cmake
--- a/cmake/scripts/FindVersion.cmake
+++ b/cmake/scripts/FindVersion.cmake
@@ -103,6 +103,20 @@ if(GIT_FOUND AND EXISTS "${CMAKE_SOURCE_
 
     # Restore LC_ALL
     set(ENV{LC_ALL} "${SAVED_LC_ALL}")
+elseif(EXISTS "${CMAKE_SOURCE_DIR}/versiondump.py")
+    execute_process(COMMAND py -3 versiondump.py
+                    WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
+    )
+    file(READ "${CMAKE_SOURCE_DIR}/.ottdrev-gpp" OTTDREV)
+    string(REPLACE "\n" "" OTTDREV "${OTTDREV}")
+    string(REPLACE "\t" ";" OTTDREV "${OTTDREV}")
+    list(GET OTTDREV 0 REV_VERSION)
+    list(GET OTTDREV 1 REV_ISODATE)
+    list(GET OTTDREV 2 REV_MODIFIED)
+    list(GET OTTDREV 3 REV_HASH)
+    list(GET OTTDREV 4 REV_ISTAG)
+    list(GET OTTDREV 5 REV_ISSTABLETAG)
+    list(GET OTTDREV 6 REV_YEAR)
 elseif(EXISTS "${CMAKE_SOURCE_DIR}/.ottdrev")
     file(READ "${CMAKE_SOURCE_DIR}/.ottdrev" OTTDREV)
     string(REPLACE "\n" "" OTTDREV "${OTTDREV}")