diff --git a/CMakeLists.txt b/CMakeLists.txt
index 710f3fcfb..e5f4f4687 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -94,7 +94,11 @@ function(check_submodules_present)
         endif()
     endforeach()
 endfunction()
-check_submodules_present()
+
+if (EXISTS "${PROJECT_SOURCE_DIR}/.git/objects")
+    # only check submodules when source is obtained via Git
+    check_submodules_present()
+endif()
 
 configure_file(${PROJECT_SOURCE_DIR}/dist/compatibility_list/compatibility_list.qrc
                ${PROJECT_BINARY_DIR}/dist/compatibility_list/compatibility_list.qrc
diff --git a/CMakeModules/GenerateSCMRev.cmake b/CMakeModules/GenerateSCMRev.cmake
index a011c6cbf..87e9eef35 100644
--- a/CMakeModules/GenerateSCMRev.cmake
+++ b/CMakeModules/GenerateSCMRev.cmake
@@ -6,15 +6,27 @@ endfunction()
 
 list(APPEND CMAKE_MODULE_PATH "${SRC_DIR}/externals/cmake-modules")
 
-# Find the package here with the known path so that the GetGit commands can find it as well
-find_package(Git QUIET PATHS "${GIT_EXECUTABLE}")
-
 # generate git/build information
-include(GetGitRevisionDescription)
-get_git_head_revision(GIT_REF_SPEC GIT_REV)
-git_describe(GIT_DESC --always --long --dirty)
-git_branch_name(GIT_BRANCH)
 get_timestamp(BUILD_DATE)
+if (EXISTS "${SRC_DIR}/.git/objects")
+    # Find the package here with the known path so that the GetGit commands can find it as well
+    find_package(Git QUIET PATHS "${GIT_EXECUTABLE}")
+    # only use Git to check revision info when source is obtained via Git
+    include(GetGitRevisionDescription)
+    get_git_head_revision(GIT_REF_SPEC GIT_REV)
+    git_describe(GIT_DESC --always --long --dirty)
+    git_branch_name(GIT_BRANCH)
+elseif(EXISTS "${SRC_DIR}/GIT-COMMIT" AND EXISTS "${SRC_DIR}/GIT-TAG")
+    # unified source archive
+    file(READ "${SRC_DIR}/GIT-COMMIT" GIT_REV_RAW LIMIT 64)
+    string(STRIP "${GIT_REV_RAW}" GIT_REV)
+    string(SUBSTRING "${GIT_REV_RAW}" 0 9 GIT_DESC)
+    set(GIT_BRANCH "HEAD")
+else()
+    # self-packed archive?
+    set(GIT_DESC "UNKNOWN")
+    set(GIT_BRANCH "UNKNOWN")
+endif()
 
 # Generate cpp with Git revision from template
 # Also if this is a CI build, add the build name (ie: Nightly, Canary) to the scm_rev file as well